CA2721181C - Hose bundle for a welding device - Google Patents
Hose bundle for a welding device Download PDFInfo
- Publication number
- CA2721181C CA2721181C CA2721181A CA2721181A CA2721181C CA 2721181 C CA2721181 C CA 2721181C CA 2721181 A CA2721181 A CA 2721181A CA 2721181 A CA2721181 A CA 2721181A CA 2721181 C CA2721181 C CA 2721181C
- Authority
- CA
- Canada
- Prior art keywords
- hose bundle
- arrangement
- coil spring
- connection
- hose
- 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.)
- Active
Links
- 238000003466 welding Methods 0.000 title claims abstract description 35
- 230000008878 coupling Effects 0.000 claims abstract description 41
- 238000010168 coupling process Methods 0.000 claims abstract description 41
- 238000005859 coupling reaction Methods 0.000 claims abstract description 41
- 239000004020 conductor Substances 0.000 claims abstract description 19
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 210000000707 wrist Anatomy 0.000 claims description 17
- 238000004804 winding Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000004308 accommodation Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 210000003857 wrist joint Anatomy 0.000 abstract 1
- 238000011068 loading method Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/005—Electrical coupling combined with fluidic coupling
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
- B23K9/29—Supporting devices adapted for making use of shielding means
- B23K9/291—Supporting devices adapted for making use of shielding means the shielding means being a gas
- B23K9/295—Supporting devices adapted for making use of shielding means the shielding means being a gas using consumable electrode-wire
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/323—Combined coupling means, e.g. gas, electricity, water or the like
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/56—Means for preventing chafing or fracture of flexible leads at outlet from coupling part
- H01R13/565—Torsion-relieving
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Manipulator (AREA)
Abstract
The invention relates to a supply pipe arrangement (24) with a supply pipe (21) for a welding device and for connecting to a robot wrist joint (17). The supply pipe has a guide channel (26) for taking up and guiding a welding wire and an electrical conductor arrangement (41), which is covered by insulation. The supply pipe arrangement has a coupling device (22) for rotatably connecting the supply pipe to a wire-supplying device (23). The coupling device has a plug part, which is formed by a connecting piece (45) and is taken up rotatably in a stationary socket part for connection with the wire-supplying device. A channel wall (33) of the guiding channel has a torsion-resistant supporting structure.
Description
HOSE BUNDLE FOR A WELDING DEVICE
The present invention relates to a hose bundle arrangement with a hose bundle for a welding device.
Hose bundles of the type mentioned at the beginning are used as transfer device between the handling part of a welding device, that is to say the so-called welding torch, and the actual welding unit which is essentially used for welding current generation and for the supply or for the connection of the welding media, such as the welding wire and the shielding gas. As transfer device, the hose bundle in this case is primarily assigned the task of ensuring the current and media supply over the distance to the welding unit, without impairing the handling of the welding torch.
This applies to a particular degree if one is concerned with hose bundles which are used for installation on a welding robot, in the case of which hose bundles, the hose bundle is arranged between a welding torch installed on a robot wrist and a wire feed device installed in the region of a fixed robot base, and the hose bundle on the one hand may not hinder the complex kinetics of the overlaid movements of the robot arm members and on the other hand the mechanical loadings of the hose bundle arising in connection with the movement of the robot arm should be as low as possible in order to keep wearing as low as possible.
The torsional loadings arising in operation, which can admittedly be avoided in that a rotary coupling is arranged in the region of the robot wrist in order to keep the hose bundle torsion-free to the greatest extent possible, prove particularly damaging for the service life of a hose bundle. However, from this results the disadvantage that the mass in the region of the robot wrist is increased and that the heat transmission from the welding torch onto the
The present invention relates to a hose bundle arrangement with a hose bundle for a welding device.
Hose bundles of the type mentioned at the beginning are used as transfer device between the handling part of a welding device, that is to say the so-called welding torch, and the actual welding unit which is essentially used for welding current generation and for the supply or for the connection of the welding media, such as the welding wire and the shielding gas. As transfer device, the hose bundle in this case is primarily assigned the task of ensuring the current and media supply over the distance to the welding unit, without impairing the handling of the welding torch.
This applies to a particular degree if one is concerned with hose bundles which are used for installation on a welding robot, in the case of which hose bundles, the hose bundle is arranged between a welding torch installed on a robot wrist and a wire feed device installed in the region of a fixed robot base, and the hose bundle on the one hand may not hinder the complex kinetics of the overlaid movements of the robot arm members and on the other hand the mechanical loadings of the hose bundle arising in connection with the movement of the robot arm should be as low as possible in order to keep wearing as low as possible.
The torsional loadings arising in operation, which can admittedly be avoided in that a rotary coupling is arranged in the region of the robot wrist in order to keep the hose bundle torsion-free to the greatest extent possible, prove particularly damaging for the service life of a hose bundle. However, from this results the disadvantage that the mass in the region of the robot wrist is increased and that the heat transmission from the welding torch onto the
- 2 -hose bundle and thus the dissipation of the welding heat from the welding torch is impaired by means of the intermediate arrangement of a coupling element.
The present invention is therefore based on the object of suggesting a hose bundle for welding devices which can be loaded with torsion to a particular degree, in order to enable a long service life even without an intermediate arrangement of a rotary coupling in the region of the robot wrist.
In the case of the hose bundle according to the invention, the channel wall of the guide channel has a coil spring arrangement with at least one coil spring winding.
In the case of the hose bundle according to the invention, the guide channel is therefore constructed in a sufficiently torsionally rigid manner in order to prevent a damaging loading of the outer insulation or the conductor arrangement by means of torsional stresses to the greatest possible extent.
According to an advantageous embodiment, the supporting structure has a tubular carrier which is provided with a torsionally rigid reinforcement. In this case, the carrier is essentially assigned the task of forming the reinforcement to a tubular wall. For example, the carrier can be formed from a plastic hose which has a torsionally rigid jacket in the form of a braid or network, for example made from a metal or a sufficiently rigid, particularly pressure-resistant, non-metal material.
In a particularly preferred embodiment, the supporting structure has a coil spring arrangement with at least one
The present invention is therefore based on the object of suggesting a hose bundle for welding devices which can be loaded with torsion to a particular degree, in order to enable a long service life even without an intermediate arrangement of a rotary coupling in the region of the robot wrist.
In the case of the hose bundle according to the invention, the channel wall of the guide channel has a coil spring arrangement with at least one coil spring winding.
In the case of the hose bundle according to the invention, the guide channel is therefore constructed in a sufficiently torsionally rigid manner in order to prevent a damaging loading of the outer insulation or the conductor arrangement by means of torsional stresses to the greatest possible extent.
According to an advantageous embodiment, the supporting structure has a tubular carrier which is provided with a torsionally rigid reinforcement. In this case, the carrier is essentially assigned the task of forming the reinforcement to a tubular wall. For example, the carrier can be formed from a plastic hose which has a torsionally rigid jacket in the form of a braid or network, for example made from a metal or a sufficiently rigid, particularly pressure-resistant, non-metal material.
In a particularly preferred embodiment, the supporting structure has a coil spring arrangement with at least one
- 3 -coil spring winding which enables a bending of the hose bundle in operation of a robot and has sufficient torsional rigidity for transmitting an angle of rotation without a torsional stress acting to a damaging degree on the outer insulation of the conductor arrangement.
Depending on the length of the hose bundle and the size of the angle of rotation of a welding torch, it can also prove advantageous for constructing the coil spring arrangement to arrange a plurality of coil spring windings concentrically. In this case, it can in particular be advantageous, in the case of a large rotational angle range in both directions of rotation, for constructing the coil spring arrangement to provide two coil spring windings which have an opposed winding direction.
Independently of the number and layout of the coil spring windings used for constructing the coil spring arrangement, it is advantageous to use the coil spring arrangement itself as electrical conductor arrangement, in order to enable a realisation of the hose bundle which is minimised in terms of diameter with a minimal configuration of the hose bundle.
If, in a particularly preferred exemplary embodiment of the hose bundle, an annular gap between the coil spring arrangement and a channel wall of an accommodation channel is formed in a transfer section, which is axially delimited by force introduction devices, of the coil spring arrangement in the relaxed state, not only can a relieving of the insulation hose of a torsional loading, that is to say a reduction from the torsional loading, be achieved, but also, depending on the dimensioning of the annular gap, a complete decoupling of the insulation hose from the torsional loading accommodated by means of the coil spring arrangement can be achieved in the maximum case.
Depending on the length of the hose bundle and the size of the angle of rotation of a welding torch, it can also prove advantageous for constructing the coil spring arrangement to arrange a plurality of coil spring windings concentrically. In this case, it can in particular be advantageous, in the case of a large rotational angle range in both directions of rotation, for constructing the coil spring arrangement to provide two coil spring windings which have an opposed winding direction.
Independently of the number and layout of the coil spring windings used for constructing the coil spring arrangement, it is advantageous to use the coil spring arrangement itself as electrical conductor arrangement, in order to enable a realisation of the hose bundle which is minimised in terms of diameter with a minimal configuration of the hose bundle.
If, in a particularly preferred exemplary embodiment of the hose bundle, an annular gap between the coil spring arrangement and a channel wall of an accommodation channel is formed in a transfer section, which is axially delimited by force introduction devices, of the coil spring arrangement in the relaxed state, not only can a relieving of the insulation hose of a torsional loading, that is to say a reduction from the torsional loading, be achieved, but also, depending on the dimensioning of the annular gap, a complete decoupling of the insulation hose from the torsional loading accommodated by means of the coil spring arrangement can be achieved in the maximum case.
- 4 -Preferably, the channel wall is formed by the conductor arrangement.
In order to enable an electrical decoupling between the coil spring arrangement and the conductor arrangement in the transfer section of the coil spring arrangement, an insulating covering of the coil spring arrangement or an insulating lining of the conductor arrangement is provided in the annular gap.
In order to be able to connect the hose bundle to a welding unit or a wire feed device, the hose bundle is provided with a connection piece on its wire feed end, which is used both for current transfer and for force introduction between the welding unit or the wire feed device and the hose bundle. As a result of this, the direct connection of the wire feed end of the hose bundle to a rotary coupling is possible, which rotary coupling makes it possible to limit the torsional forces, which act on the hose bundle or the coil spring arrangement during operation due to torsion of the robot wrist, to a maximum value.
The hose bundle arrangement according to the invention is provided with a coupling device at its wire feed end, which has a plug part formed by means of the connection piece, which plug part is rotatably accommodated in a fixed socket part for connection to a wire feed device. Due to the coupling device, which is arranged at the wire feed end, that is to say the end of the hose bundle, which is remote from the robot wrist, a heat transmission resistance defined by the coupling device, which hinders the heat dissipation from the robot wrist, only results at the end of a heat transmission path defined by means of the hose bundle, so that a substantially improved heat dissipation
In order to enable an electrical decoupling between the coil spring arrangement and the conductor arrangement in the transfer section of the coil spring arrangement, an insulating covering of the coil spring arrangement or an insulating lining of the conductor arrangement is provided in the annular gap.
In order to be able to connect the hose bundle to a welding unit or a wire feed device, the hose bundle is provided with a connection piece on its wire feed end, which is used both for current transfer and for force introduction between the welding unit or the wire feed device and the hose bundle. As a result of this, the direct connection of the wire feed end of the hose bundle to a rotary coupling is possible, which rotary coupling makes it possible to limit the torsional forces, which act on the hose bundle or the coil spring arrangement during operation due to torsion of the robot wrist, to a maximum value.
The hose bundle arrangement according to the invention is provided with a coupling device at its wire feed end, which has a plug part formed by means of the connection piece, which plug part is rotatably accommodated in a fixed socket part for connection to a wire feed device. Due to the coupling device, which is arranged at the wire feed end, that is to say the end of the hose bundle, which is remote from the robot wrist, a heat transmission resistance defined by the coupling device, which hinders the heat dissipation from the robot wrist, only results at the end of a heat transmission path defined by means of the hose bundle, so that a substantially improved heat dissipation
- 5 -of the heat arising at the welding torch is possible compared to the case of installation of a rotary coupling in the region of the robot wrist.
If, furthermore, the socket part has a housing part constructed as an electrical conductor arrangement, which housing part has a coupling element in an annular gap formed between the plug part and a sleeve receptacle, which coupling element is used both as a radial bearing and for current transfer, a particularly good heat transmission is realised in co-operation with the plug part in the region of the rotary coupling.
In some embodiments of the invention, there is provided a hose bundle arrangement with a hose bundle for a welding device and for connection to a robot wrist, wherein the hose bundle has a guide channel for accommodating and guiding a welding wire and an electrical conductor arrangement covered by means of insulation, wherein the hose bundle arrangement has a coupling device for the rotatable connection of the hose bundle to a wire feed device, wherein the coupling device has a plug part formed by means of a connection piece, which is accommodated rotatably in a fixed socket part for connection to the wire feed device, wherein a channel wall of the guide channel has a torsionally rigid supporting structure, and wherein the torsionally rigid supporting structure is on a side of the robot wrist connected to a connection element for providing a force transmission between the torsionally rigid supporting structure and the robot wrist.
- 5a -An embodiment of the invention is described in more detail below on the basis of the drawing. In the figures:
Fig. 1: shows a welding robot with a hose bundle arrangement arranged on the robot arm;
Fig. 2: shows the hose bundle arrangement used on the welding robot shown in Fig. 1 in a detail view;
Fig. 3: shows the hose bundle arrangement shown in Fig. 2 in a partial sectional illustration according to the section line course III - III;
Fig. 4: shows an enlarged illustration of a distal connection end according to cutaway IV of the hose bundle arrangement shown in Fig. 3;
Fig. 5: shows an enlarged illustration of a proximal connection end according to cutaway V of the hose bundle arrangement shown in Fig. 3.
Fig. 1 shows a welding robot 10 with a body part 12 pivotable about a vertical axis 11, on which an articulated arm 13 is arranged. On a distal end 14 of a lower arm
If, furthermore, the socket part has a housing part constructed as an electrical conductor arrangement, which housing part has a coupling element in an annular gap formed between the plug part and a sleeve receptacle, which coupling element is used both as a radial bearing and for current transfer, a particularly good heat transmission is realised in co-operation with the plug part in the region of the rotary coupling.
In some embodiments of the invention, there is provided a hose bundle arrangement with a hose bundle for a welding device and for connection to a robot wrist, wherein the hose bundle has a guide channel for accommodating and guiding a welding wire and an electrical conductor arrangement covered by means of insulation, wherein the hose bundle arrangement has a coupling device for the rotatable connection of the hose bundle to a wire feed device, wherein the coupling device has a plug part formed by means of a connection piece, which is accommodated rotatably in a fixed socket part for connection to the wire feed device, wherein a channel wall of the guide channel has a torsionally rigid supporting structure, and wherein the torsionally rigid supporting structure is on a side of the robot wrist connected to a connection element for providing a force transmission between the torsionally rigid supporting structure and the robot wrist.
- 5a -An embodiment of the invention is described in more detail below on the basis of the drawing. In the figures:
Fig. 1: shows a welding robot with a hose bundle arrangement arranged on the robot arm;
Fig. 2: shows the hose bundle arrangement used on the welding robot shown in Fig. 1 in a detail view;
Fig. 3: shows the hose bundle arrangement shown in Fig. 2 in a partial sectional illustration according to the section line course III - III;
Fig. 4: shows an enlarged illustration of a distal connection end according to cutaway IV of the hose bundle arrangement shown in Fig. 3;
Fig. 5: shows an enlarged illustration of a proximal connection end according to cutaway V of the hose bundle arrangement shown in Fig. 3.
Fig. 1 shows a welding robot 10 with a body part 12 pivotable about a vertical axis 11, on which an articulated arm 13 is arranged. On a distal end 14 of a lower arm
- 6 -element 15, a robot wrist 17 pivotable about a wrist axis 16 is constructed, which robot wrist connects a torch base 18 of a welding torch 19 to the lower arm element 15 in an articulated manner.
A hose bundle 21 is connected directly or, in the present case indirectly via a connection element 20, to the torch base 18, which hose bundle extends from the connection element 20 or the torch base 18 as far as to a coupling device 22 constructed at a proximal end 31 of the hose bundle 21, which coupling device is used for connecting the hose bundle to a wire feed device 23 constructed as a wire feed case here.
In the exemplary embodiment shown in Fig. 1, a hose bundle arrangement 24 formed from the hose bundle 21 and the coupling device 22 is connected Indirectly via a connection element 25 to the wire feed device 23.
Fig. 2 shows the hose bundle arrangement 24 with the connection element 20 arranged at the distal end 14, which is constructed as a sensor device in the present case, which sensor device has a force sensor which is not shown in any more detail here, in order to introduce a suitable evasive movement of the welding robot 10 in the event of a collision of the welding torch 19 with a workpiece. In contrast with the illustration of the hose bundle arrangement 24 in Fig. 2, it is also possible however to connect the distal end 14 of the hose bundle 21 to the torch base 18 directly.
The hose bundle arrangement 24 shown in Fig. 2 is used for current and media supply of the welding torch 19 and to this end has a guide channel 26 in the hose bundle 21, as shown in Fig. 3, which is primarily used for guiding through a welding wire, which is not shown here in any more detail and is conveyed from the wire feed device 23 into a
A hose bundle 21 is connected directly or, in the present case indirectly via a connection element 20, to the torch base 18, which hose bundle extends from the connection element 20 or the torch base 18 as far as to a coupling device 22 constructed at a proximal end 31 of the hose bundle 21, which coupling device is used for connecting the hose bundle to a wire feed device 23 constructed as a wire feed case here.
In the exemplary embodiment shown in Fig. 1, a hose bundle arrangement 24 formed from the hose bundle 21 and the coupling device 22 is connected Indirectly via a connection element 25 to the wire feed device 23.
Fig. 2 shows the hose bundle arrangement 24 with the connection element 20 arranged at the distal end 14, which is constructed as a sensor device in the present case, which sensor device has a force sensor which is not shown in any more detail here, in order to introduce a suitable evasive movement of the welding robot 10 in the event of a collision of the welding torch 19 with a workpiece. In contrast with the illustration of the hose bundle arrangement 24 in Fig. 2, it is also possible however to connect the distal end 14 of the hose bundle 21 to the torch base 18 directly.
The hose bundle arrangement 24 shown in Fig. 2 is used for current and media supply of the welding torch 19 and to this end has a guide channel 26 in the hose bundle 21, as shown in Fig. 3, which is primarily used for guiding through a welding wire, which is not shown here in any more detail and is conveyed from the wire feed device 23 into a
- 7 -torch head 27 (Fig. 1) of the welding torch 19, and also for conveying a shielding gas.
Further, the hose bundle arrangement 24 shown in Fig. 2 has a conductor channel 28, which here encloses the hose bundle 21 and is used for guiding electrical signal lines 29 or media lines, for example for conveying cooling water, not shown here in any more detail.
Fig. 3 shows a connection end 30, constructed at the distal end 14 of the hose bundle 21, and also a connection end 32, constructed at a proximal end 31 of the hose bundle 21, which are arranged on both sides of a transfer section 52 of the hose bundle 21, in a sectional illustration.
As can particularly be seen from the enlarged detail views of the distal connection end 30 and of the proximal =connection end 32 in the Figs 4 and 5, a channel wall 33 of the guide channel 26 is defined in the exemplary embodiment shown here by means of the coaxial arrangement of two coil spring windings 34, 35 which together form a coil spring arrangement 36. In the present case, further, with respect to a guide channel axis 37, the coil spring windings 34, 35 are provided with opposed winding directions, so that a supporting structure which is sufficiently torsionally rigid in both rotational angle directions can be realised.
The coil spring arrangement 36 or the outer coil spring winding 35 is in the present exemplary embodiment provided with a hose coating 40 made of an insulating material, the coil spring arrangement 36 being arranged in an accommodation channel 54, the channel wall 55 of which is formed by the conductor arrangement 21. The hose coating 40 fills an annular gap 42 constructed between the coil spring arrangement 36 and an electrical conductor arrangement 41 arranged coaxially to the guide channel axis 37. In a contact region 43 of the connection end 30, the coil spring
Further, the hose bundle arrangement 24 shown in Fig. 2 has a conductor channel 28, which here encloses the hose bundle 21 and is used for guiding electrical signal lines 29 or media lines, for example for conveying cooling water, not shown here in any more detail.
Fig. 3 shows a connection end 30, constructed at the distal end 14 of the hose bundle 21, and also a connection end 32, constructed at a proximal end 31 of the hose bundle 21, which are arranged on both sides of a transfer section 52 of the hose bundle 21, in a sectional illustration.
As can particularly be seen from the enlarged detail views of the distal connection end 30 and of the proximal =connection end 32 in the Figs 4 and 5, a channel wall 33 of the guide channel 26 is defined in the exemplary embodiment shown here by means of the coaxial arrangement of two coil spring windings 34, 35 which together form a coil spring arrangement 36. In the present case, further, with respect to a guide channel axis 37, the coil spring windings 34, 35 are provided with opposed winding directions, so that a supporting structure which is sufficiently torsionally rigid in both rotational angle directions can be realised.
The coil spring arrangement 36 or the outer coil spring winding 35 is in the present exemplary embodiment provided with a hose coating 40 made of an insulating material, the coil spring arrangement 36 being arranged in an accommodation channel 54, the channel wall 55 of which is formed by the conductor arrangement 21. The hose coating 40 fills an annular gap 42 constructed between the coil spring arrangement 36 and an electrical conductor arrangement 41 arranged coaxially to the guide channel axis 37. In a contact region 43 of the connection end 30, the coil spring
- 8 -arrangement 36 or the outer coil spring winding 35 is released from the hose coating 40 and accommodated in an end sleeve 44, constructed as a ferrule here, which is preferably formed from a copper material. The end sleeve 44 is used on the one hand for force transmission between the coil spring arrangement 36 and the connection element 20 and also on the other hand for current transfer from the conductor arrangement 41 to the connection element 20.
Accordingly, a connection piece 45 is provided at the proximal end 31 of the hose bundle 21, which has a connection region constructed as an end sleeve 46 for connection to the coil spring arrangement 36. Adjacently to the end sleeve 46, the connection piece 45 integrally blends into a coupling end 47, which is used for a connection to a socket part 48, which connection can be rotated about the guide channel axis 37, of a coupling device comprising the coupling end 47 and the socket part 22. For the releasable connection of the coupling end 47 of the connection piece 45 to the socket part 48, the coupling device 22 has a locking sleeve 50 which can be displaced on a latching device 49, which locking sleeve in the case of the exemplary embodiment shown in Fig. 5 releases the latching connection between the latching device 49 and the coupling end 47 of the connection piece 45 in the case of a displacement to the right and thus enables a removal of the proximal connection end 32 of the hose bundle 21 from the coupling engagement.
The connection piece 45 is thus used both for producing a mechanically locking coupling engagement into the coupling device 22 or the socket part 48 of the coupling device 22 and for producing an electrically conductive connection between the conductor arrangement 41 of the hose bundle 21 and the connection element 25 connected to the socket part 48, which connection part is connected to the power supply of the wire feed device 23. In this case, the current
Accordingly, a connection piece 45 is provided at the proximal end 31 of the hose bundle 21, which has a connection region constructed as an end sleeve 46 for connection to the coil spring arrangement 36. Adjacently to the end sleeve 46, the connection piece 45 integrally blends into a coupling end 47, which is used for a connection to a socket part 48, which connection can be rotated about the guide channel axis 37, of a coupling device comprising the coupling end 47 and the socket part 22. For the releasable connection of the coupling end 47 of the connection piece 45 to the socket part 48, the coupling device 22 has a locking sleeve 50 which can be displaced on a latching device 49, which locking sleeve in the case of the exemplary embodiment shown in Fig. 5 releases the latching connection between the latching device 49 and the coupling end 47 of the connection piece 45 in the case of a displacement to the right and thus enables a removal of the proximal connection end 32 of the hose bundle 21 from the coupling engagement.
The connection piece 45 is thus used both for producing a mechanically locking coupling engagement into the coupling device 22 or the socket part 48 of the coupling device 22 and for producing an electrically conductive connection between the conductor arrangement 41 of the hose bundle 21 and the connection element 25 connected to the socket part 48, which connection part is connected to the power supply of the wire feed device 23. In this case, the current
- 9 -transfer takes place in the region of he coupling device 22 essentially from the socket part 48 via a coupling element 51 constructed in the manner of a cylinder sleeve to the coupling end 47 of the connection piece 45. The coupling element 51 accommodated in a housing part 56 is furthermore used as a radial bearing of the coupling end 47 in order to enable a torsion of the coupling end 47 in the socket part 48 of the coupling device 22 which is as low-friction as possible.
Claims (12)
1. Hose bundle arrangement with a hose bundle for a welding device and for connection to a robot wrist, wherein the hose bundle has a guide channel for accommodating and guiding a welding wire and an electrical conductor arrangement covered by means of insulation, wherein the hose bundle arrangement has a coupling device for the rotatable connection of the hose bundle to a wire feed device, wherein the coupling device has a plug part formed by means of a connection piece, which is accommodated rotatably in a fixed socket part for connection to the wire feed device, wherein a channel wall of the guide channel has a torsionally rigid supporting structure, and wherein the torsionally rigid supporting structure is on a side of the robot wrist connected to a connection element for providing a force transmission between the torsionally rigid supporting structure and the robot wrist.
2. Hose bundle arrangement according to Claim 1, wherein the supporting structure has a tubular carrier with a torsionally rigid reinforcement.
3. Hose bundle arrangement according to Claim 1, wherein the supporting structure has a coil spring arrangement with at least one coil spring winding.
4. Hose bundle arrangement according to Claim 3, wherein the coil spring arrangement has two coil spring windings with opposed winding.
5. Hose bundle arrangement according to Claim 3 or 4, wherein the coil spring arrangement is used as electrical conductor arrangement.
6. Hose bundle arrangement according to any one of Claims 1 to 5, wherein an annular gap between the coil spring arrangement and a channel wall of an accommodation channel is formed in a transfer section, which is axially delimited by force introduction devices, of the coil spring arrangement in the relaxed state.
7. Hose bundle arrangement according to Claim 6, wherein the channel wall is formed by the electrical conductor arrangement.
8. Hose bundle arrangement according to Claim 6 or 7, wherein the electrical conductor arrangement is provided with an insulating lining in the region of the transfer section.
9. Hose bundle arrangement according to Claim 6 or 7, wherein the coil spring arrangement is provided with an insulating jacket in the region of the transfer section.
10. Hose bundle arrangement according to any one of Claims 1 to 9, wherein the hose bundle is provided with the connection piece at its wire feed end, which connection piece is used both for current transfer and for force introduction.
11. Hose bundle arrangement according to any one of Claims 1 to 10, wherein the coupling device is constructed for releasable connection to the connection piece.
12. Hose bundle arrangement according to Claim 11, wherein the socket part has a housing part constructed as an electrical conductor arrangement, which housing part has a coupling element in an annular gap formed between the connection piece and a sleeve receptacle, which coupling element is used both as a radial bearing and for current transfer.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810019327 DE102008019327B4 (en) | 2008-04-16 | 2008-04-16 | Hose package arrangement |
| DE102008019327.5 | 2008-04-16 | ||
| PCT/EP2009/054428 WO2009127640A1 (en) | 2008-04-16 | 2009-04-15 | Supply pipe for a welding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2721181A1 CA2721181A1 (en) | 2009-10-22 |
| CA2721181C true CA2721181C (en) | 2016-12-13 |
Family
ID=40848604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2721181A Active CA2721181C (en) | 2008-04-16 | 2009-04-15 | Hose bundle for a welding device |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2276602A1 (en) |
| CN (1) | CN102006963A (en) |
| CA (1) | CA2721181C (en) |
| DE (1) | DE102008019327B4 (en) |
| WO (1) | WO2009127640A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT509589B1 (en) * | 2010-06-11 | 2011-10-15 | Fronius Int Gmbh | SYSTEM FOR FIXING A WIRE SEDE IN A COUPLING AND WIRE INJECTION NOZZLE FOR SUCH A FASTENING SYSTEM |
| KR102232132B1 (en) * | 2014-03-06 | 2021-03-25 | 코페르닉 에스아 | Consumable welding wire, preferably mig/mag, and relating manufacturing process |
| RU2643732C2 (en) * | 2015-11-10 | 2018-02-05 | Общество с ограниченной ответственностью "Барнаульский котельный завод" (ООО "БКЗ") | Welding head |
| US20240042629A1 (en) * | 2020-12-29 | 2024-02-08 | James HIGHFIELD | Robotic assembly |
| CN112944109A (en) * | 2021-04-13 | 2021-06-11 | 辽宁科技大学 | Self-adaptive variable-diameter steel pipe inner wall laser cladding robot and method |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3281571A (en) * | 1964-12-08 | 1966-10-25 | American Chain & Cable Co | Flexible conduit assembly for welding apparatus |
| DE1232679B (en) * | 1964-12-12 | 1967-01-19 | Siemens Ag | Welding cables |
| US3783233A (en) * | 1967-10-04 | 1974-01-01 | Co Ordinated Ind Inc | Welding gun cooling structure and electrode tip retainer |
| US3755648A (en) * | 1972-09-05 | 1973-08-28 | J Rothman | Flexible welding nozzle apparatus |
| US3999033A (en) * | 1975-02-25 | 1976-12-21 | Union Carbide Corporation | Arc welding torch having a flexible wire guide assembly |
| DE4325289A1 (en) * | 1993-07-28 | 1995-04-06 | T & B Schweistechnik Gmbh | Welding-cable connection for manual and automatic arc welding and cutting torch |
| JP4001224B2 (en) * | 2002-02-08 | 2007-10-31 | 株式会社安川電機 | Arc welding cable |
| JP2004306072A (en) * | 2003-04-04 | 2004-11-04 | Daihen Corp | Feeding mechanism of welding wire or the like in arc welding robot |
| DE10354880A1 (en) * | 2003-11-21 | 2005-06-30 | Sks Welding Systems Gmbh | Welding torch device for connection to a welding robot |
| US7196284B2 (en) * | 2004-01-13 | 2007-03-27 | Charles Barten | Welding gun having rotational swivel coupling |
| JP4301984B2 (en) | 2004-03-23 | 2009-07-22 | ファナック株式会社 | A striation body treatment structure for welding torch of arc welding robot |
| AT502844B1 (en) * | 2005-12-12 | 2007-08-15 | Fronius Int Gmbh | WELDING BURNER AND END PIECE AND CONTACT TUBE FOR A WELDING BURNER |
-
2008
- 2008-04-16 DE DE200810019327 patent/DE102008019327B4/en active Active
-
2009
- 2009-04-15 CN CN2009801136010A patent/CN102006963A/en active Pending
- 2009-04-15 EP EP09731578A patent/EP2276602A1/en not_active Withdrawn
- 2009-04-15 WO PCT/EP2009/054428 patent/WO2009127640A1/en active Application Filing
- 2009-04-15 CA CA2721181A patent/CA2721181C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008019327A1 (en) | 2009-10-22 |
| CA2721181A1 (en) | 2009-10-22 |
| EP2276602A1 (en) | 2011-01-26 |
| WO2009127640A1 (en) | 2009-10-22 |
| DE102008019327B4 (en) | 2011-12-01 |
| CN102006963A (en) | 2011-04-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20131231 |