CN109158746A - The unilateral welding gun structure of industrial robot - Google Patents
The unilateral welding gun structure of industrial robot Download PDFInfo
- Publication number
- CN109158746A CN109158746A CN201811123227.XA CN201811123227A CN109158746A CN 109158746 A CN109158746 A CN 109158746A CN 201811123227 A CN201811123227 A CN 201811123227A CN 109158746 A CN109158746 A CN 109158746A
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- CN
- China
- Prior art keywords
- electrode
- passive
- welding gun
- industrial robot
- fixed frame
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- 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.)
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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
- B23K11/30—Features relating to 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
- B23K11/31—Electrode holders and actuating devices therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Abstract
The present invention provides the unilateral welding gun structures of industrial robot, belong to field of welding devices, including fixed frame, the fixed frame is equipped with active electrode moving up and down and Passive electrode, the active electrode and Passive electrode move independently of each other, the Passive electrode lower end is equipped with inductive switch, the axis of the inductive switch and the axis of the Passive electrode are arranged in parallel, the active electrode is electrically connected by cable with the anode of transformer, and the Passive electrode is electrically connected by cable with the cathode of the transformer.Active electrode of the present invention and passive motor can self-movement, meet the welding requirements of complicated bond pad locations, there is very high flexibility, conveniently moving.
Description
Technical field
The invention belongs to field of welding devices, are related to the unilateral welding gun structure of industrial robot.
Background technique
As the continuous development of automobile industry rises year by year for the manufacturing technique requirent of automobile, and welding procedure is numerous
Accounting is maximum in production technology, by welding, the part combination of different shape, different materials can be got up, to meet machine
The needs of the targets such as tool shape of product, performance, production cost." four-door two-lid " is important appearance in automobile body-in-white component
Face opening tool, welding precision require height, will be with surrounding components such as central post, the uniform fit clearance of the holdings such as fender after assembly
And good flatness.Not only to guarantee that outer surface is injury-free when therefore welding such part, it is necessary to minimize soldering turret
To the impact of part to prevent part deformation, good interchangeability can be only achieved in this way.
It for the repair welding after the pressing of this surface part, needs to be welded using unilateral spot-welding technology, inner panel when welding
It needs to keep intensity, outside plate needs to keep beautiful, so solder joint should be formed on inner plating, guarantees the flat of outside outside plate again
Whole, no deformation is without welding trace, and existing unilateral soldering equipment is mostly puppet's weldering, and main Passive electrode is provided separately and position is fixed, only
Suitable for specific workpiece, it is unable to satisfy requirements above.
Summary of the invention
In view of the problems of the existing technology the present invention will provide a kind of unilateral welding gun structure of industrial robot, actively electricity
Pole and passive motor can self-movement, meet the welding requirements of complicated bond pad locations, there is very high flexibility, conveniently moving, quilt
Moving electrode pressure adjustable is suitable for a variety of the thin plates, avoids for workpiece being squeezed and deformed.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: the unilateral welding gun structure of industrial robot, including
Fixed frame, the fixed frame are equipped with active electrode moving up and down and Passive electrode, the active electrode and Passive electrode
Mutually indepedent movement, the Passive electrode lower end are equipped with inductive switch, the inductive switch and the Passive electrode working end
Setting direction is consistent, and the active electrode be electrically connected by the anode of cable and transformer, the Passive electrode by cable and
The cathode of the transformer is electrically connected.
Further, the Passive electrode is copper braid over braid.
Further, the distance of the maximum distance of reaction point of the inductive switch to welded workpiece is greater than the passive electricity
The contact of pole is to the distance of welded workpiece, and the quantity of the inductive switch is two and the relatively described Passive electrode is symmetrically set
It sets.
Further, the fixed frame is equipped with driving cylinder, and the force-output shaft of the driving cylinder passes through link block and the quilt
Moving electrode connection, the driving cylinder is by solenoid valve control.
Further, the driving cylinder is plate cylinder, and the two sides of the driving cylinder force-output shaft are symmetrically arranged with guide post, institute
The lower end for stating guide post is fixedly connected with the upper end of the link block.
Further, the active electrode is driven by driving assembly realizes moving up and down for the relatively described fixed frame, described
Driving assembly includes driving motor, driving pulley, passive belt wheel, lead screw and main shaft, the driving motor by box with pulley with
The fixed frame is fixedly connected, and the driving pulley and passive belt wheel are each provided at the inside of the box with pulley, the driving electricity
Machine drives the driving pulley and passive belt wheel to rotate by synchronous belt, the force-output shaft of the driving pulley and the driving motor
Coaxial arrangement, the lead screw and the passive belt wheel are coaxially disposed, and the main shaft is coaxially set in the outer ring of the lead screw and two
Person is threadedly coupled, and the main shaft is fixedly connected far from one end of the passive belt wheel with the active electrode, and the main shaft is opposite
The fixed frame moves up and down.
Further, connection weldering arm is equipped between the main shaft and the active electrode, the connection weldering arm, which is equipped with, leads
To bar, the guide rod extends to the major axes orientation, and the axis of the guide rod and the axis of the main shaft are arranged in parallel, institute
It states guide rod and is slided up and down with the fixed frame and is connect.
Further, the driving motor is servo motor.
Further, the fixed frame is assembled by steel plate, and the upper end of the fixed frame is equipped with connecting flange, the master
Moving electrode and Passive electrode are vertically arranged and the axis of the two is arranged in parallel.
Further, the fixed frame is by connecting flange solid lock on industrial robot.
Compared with prior art, the present invention has the advantage that as follows with good effect.
1, active electrode and Passive electrode of the present invention are arranged at fixed frame, and are controlled respectively by driving motor and driving cylinder
System, driving cylinder is by solenoid valve control, it is possible thereby to realize the accurate control of welding stroke and pressure, driving cylinder controls pressure, drives
Dynamic motor control welds stroke, reduces the impact to workpiece, and Passive electrode uses copper braid over braid, had both been adjacent to workpiece face and has guaranteed conducting
It can avoid leaving impression again, while avoiding generating spark phenomenon because of poor contact；
2, fixed frame is fixed by connecting flange and industrial robot, can meet the welding requirements of complicated bond pad locations, tool
There is very high flexibility, and eliminate the weldering arm of soldering turret in traditional sense, greatly reduce the load factor of robot, saves big
The purchase cost of humanoid robot, also saves energy consumption；
3, guide rod is set, first is that increasing main shaft rigidity, avoids generating sliding rifle or offset, second is that preventing connection weldering arm from turning
It is dynamic, avoid solder joint from misplacing.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of unilateral weldering nugget；
Fig. 2 is the working principle diagram of the unilateral welding gun structure of industrial robot of the present invention；
Fig. 3 is the structural schematic diagram of the unilateral welding gun structure left view of industrial robot of the present invention；
Fig. 4 is the structural schematic diagram of the right view of the unilateral welding gun structure of industrial robot of the present invention；
Fig. 5 is the structural schematic diagram of driving assembly of the present invention.
Appended drawing reference:
1- fixed frame；11- connecting flange；2- active electrode；21- driving motor；22- box with pulley；23- driving pulley；
The passive belt wheel of 24-；25- lead screw；26- main shaft；261- wear ring；Arm is welded in 27- connection；3- Passive electrode；31- driving cylinder；311-
Solenoid valve；312- guide post；32- link block；33- cable；4- inductive switch；5- guide rod；6- transformer；7- workpiece outside plate；
8- workpiece inner panel；9- nugget.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in Fig. 3, Fig. 4 and Fig. 5, the present invention is the unilateral welding gun structure of industrial robot, including fixed frame 1, fixed frame 1
It is equipped with active electrode 2 moving up and down and Passive electrode 3, active electrode 2 and Passive electrode 3 move independently of each other, passively
3 lower end of electrode is equipped with inductive switch 4, and the axis of inductive switch 4 is consistent with the setting direction of 3 working end of Passive electrode, all downward
Setting, the axis of inductive switch 4 are 0~30 degree adjustable with the axis angle of Passive electrode 3, guarantee that Passive electrode 3 connects with workpiece
When touching, inductive switch 4 can accurately incude and issue signal, and axis active electrode 2 passes through the anode of cable and transformer 6
Electrical connection, Passive electrode 3 are electrically connected by cable 33 with the cathode of transformer 6；It is highly preferred that Passive electrode 3 is copper braid over braid,
Outer surface of workpiece can be preferably protected under the premise of not influencing welding quality.
Preferably, the maximum distance of reaction point of inductive switch 4 is greater than the contact of Passive electrode 3 to the distance of welded workpiece
To the distance of welded workpiece, guarantee that Passive electrode 3 is first contacted with welded workpiece, inductive switch 4 acts starting signal, passes through
PLC control centre drives active electrode 2, and the quantity of inductive switch 4 is two and opposite Passive electrode 3 is symmetrical arranged,
It is set for different welding operating conditions, during actual welding, sometimes the unilateral side of Passive electrode 3 is equipped with to be welded
Workpiece, therefore only have inductive signal on one side, two sides are respectively provided with inductive switch 4, the induction feelings being applicable under different situations
Condition expands use scope.
Preferably, fixed frame 1 is equipped with driving cylinder 31, and the force-output shaft of driving cylinder 31 passes through link block 32 and Passive electrode 3
Connection, driving cylinder 31 are controlled by solenoid valve 311, and simplified control program facilitates control；It is highly preferred that driving cylinder 31 is plate gas
Cylinder, the two sides of 31 force-output shaft of driving cylinder are symmetrically arranged with guide post 312, and the lower end of guide post 312 and the upper end of link block 32 are fixed
Connection, setting guide post 312 can promote the precision that Passive electrode 3 moves up and down.
Preferably, active electrode 2 is realized by driving assembly driving fixes moving up and down for frame 1 relatively, and driving assembly includes
Driving motor 21, driving pulley 23, passive belt wheel 24, lead screw 25 and main shaft 26, driving motor 21 is by box with pulley 22 and admittedly
Determine frame 1 to be fixedly connected, driving pulley 23 and passive belt wheel 24 are each provided at the inside of box with pulley 22, and driving motor 21 passes through synchronization
Band driving driving pulley 23 and passive belt wheel 24 rotate, and the force-output shaft of driving pulley 23 and driving motor 21 is coaxially disposed, lead screw
25 are coaxially disposed with passive belt wheel 24, and main shaft 26 is coaxially set in the outer ring of lead screw 25 and the two is threadedly coupled, and main shaft 26 is separate
One end of passive belt wheel 24 is fixedly connected with active electrode 2, and the relatively fixed frame 1 of main shaft 26 moves up and down, main shaft 26 and fixed frame 1
Between be equipped with wear ring 261, wear ring 261 be copper material be integrally formed or graphite bushing structure, it is highly preferred that lead screw 25 be rolling
Ballscrew 25, lead screw 25 and main shaft 26 are rotated by angular contact ball bearing relative to fixed seat.
Preferably, connection weldering arm 27 is equipped between main shaft 26 and active electrode 2, connection weldering arm 27 is equipped with guide rod 5, leads
Extend to bar 5 to 26 direction of main shaft, the axis of the axis and main shaft 26 of guide rod 5 is arranged in parallel, on guide rod 5 and fixed frame 1
Lower slider connection can promote the mobile accuracy of active motor oscilaltion after guide rod 5 is arranged；It is highly preferred that driving motor 21
For servo motor, registration, and can simplified control program；It is highly preferred that active motor include it is coaxial from top to bottom and according to
Electrode tip holder, motor extension bar and the electrode cap of secondary setting, electrode tip holder are fixedly connected with weldering arm 27 is connect.
Preferably, fixed frame 1 is assembled by steel plate, and materials are convenient, at low cost, and intensity is high, and the upper end of fixed frame 1 is equipped with
Connecting flange 11, convenient to be fixedly connected with fixed device or industrial robot, active electrode 2 and Passive electrode 3 are set vertically
It sets and the axis of the two is arranged in parallel, guarantee the consistency of operative orientation.
Preferably, fixed frame 1 can follow industrial robot to move together through 11 solid lock of connecting flange on industrial robot
Dynamic, convenient to be welded to specified place, conveniently moving has very high flexibility, and eliminates soldering turret in traditional sense
Weldering arm, greatly reduce the load factor of industrial robot, save the purchase cost of large machines people, energy saving, environmental protection.
In practical work process, as depicted in figs. 1 and 2, fixed frame 1 is mounted on industrial machine by connecting flange 11
Also mountable on fixed pedestal on people, industrial robot will move to welding position, and Passive electrode 3 is driven by driving cylinder 31
Dynamic, for being adjacent to workpiece surface conducting welding current, driving cylinder 31 drives Passive electrode 3 to push, when 3 workpiece pressing of Passive electrode
Inductive switch 4 senses workpiece afterwards, and driving assembly starts to act at this time, and driving parts are driven by driving motor 21, through actively
The conduction of belt wheel 23, passive belt wheel 24 and synchronous belt mechanism makes lead screw 25 that the relatively fixed frame 1 of main shaft 26 be driven to do upper and lower straight line
Movement, active electrode 2 apply welding pressure after touching workpiece and keep, and form welding current circuit between two electrodes at this time,
Then transformer 6 exports welding current and welds to workpiece, and welding current is flowed out by 6 anode of transformer, passes through active electrode
2, workpiece outside plate 7, workpiece inner panel 8 finally flow back to 6 cathode of transformer through Passive electrode 3, workpiece with 2 contact position of active electrode
Position forms nugget 9, and workpiece outside plate 7 and workpiece inner panel 8 are welded together, and Passive electrode 3 is flexible coupling using copper braid over braid
Structure had not only been adjacent to workpiece face and has guaranteed conducting but also can avoid leaving impression, while avoiding generating spark phenomenon, welding because of poor contact
After the completion, driving assembly retracts at the same time with driving cylinder 31, and active electrode 2 and Passive electrode 3 rise, and industrial robot moves structure
It moves next welding point and repeats above-mentioned welding movement, total conveniently moving is, it can be achieved that active electrode 2 and Passive electrode
3 self-movement meets the welding requirements of complicated bond pad locations.
One embodiment of the present invention has been described in detail above, but the content is only preferable implementation of the invention
Example, should not be considered as limiting the scope of the invention.It is all according to all the changes and improvements made by the present patent application range
Deng should still be within the scope of the patent of the present invention.
Claims (10)
1. the unilateral welding gun structure of industrial robot, it is characterised in that: including fixed frame, the fixed frame is equipped with and can move up and down
Active electrode and Passive electrode, the active electrode and Passive electrode move independently of each other, and the Passive electrode lower end is equipped with
Inductive switch, the inductive switch is consistent with the setting direction of the Passive electrode working end, and the active electrode passes through cable
It is electrically connected with the anode of transformer, the Passive electrode is electrically connected by cable with the cathode of the transformer.
2. the unilateral welding gun structure of industrial robot according to claim 1, it is characterised in that: the Passive electrode is copper volume
Ribbon.
3. the unilateral welding gun structure of industrial robot according to claim 1, it is characterised in that: the maximum of the inductive switch
The distance of distance of reaction point to welded workpiece is greater than distance of the contact of the Passive electrode to welded workpiece, the induction
The quantity of switch is two and the relatively described Passive electrode is symmetrical arranged.
4. the unilateral welding gun structure of industrial robot according to claim 1, it is characterised in that: the fixed frame, which is equipped with, to be driven
The force-output shaft of dynamic cylinder, the driving cylinder is connect by link block with the Passive electrode, and the driving cylinder is by solenoid valve control.
5. the unilateral welding gun structure of industrial robot according to claim 4, it is characterised in that: the driving cylinder is plate gas
Cylinder, the two sides of the driving cylinder force-output shaft are symmetrically arranged with guide post, and the lower end of the guide post and the upper end of the link block are solid
Fixed connection.
6. the unilateral welding gun structure of industrial robot according to claim 1, it is characterised in that: the active electrode is by driving
Component driver realizes moving up and down for the relatively described fixed frame, and the driving component includes driving motor, driving pulley, passive belt
Wheel, lead screw and main shaft, the driving motor are fixedly connected by box with pulley with the fixed frame, the driving pulley with passively
Belt wheel is each provided at the inside of the box with pulley, and the driving motor drives the driving pulley and passive belt wheel by synchronous belt
The force-output shaft of rotation, the driving pulley and the driving motor is coaxially disposed, and the lead screw is coaxially set with the passive belt wheel
It sets, the main shaft is coaxially set in the outer ring of the lead screw and the two is threadedly coupled, and the main shaft is far from the passive belt wheel
One end is fixedly connected with the active electrode, and the relatively described fixed frame of the main shaft moves up and down.
7. the unilateral welding gun structure of industrial robot according to claim 5, it is characterised in that: the main shaft and the active
Connection weldering arm is equipped between electrode, the connection weldering arm is equipped with guide rod, and the guide rod extends to the major axes orientation, institute
The axis for stating the axis and the main shaft of guide rod is arranged in parallel, and the guide rod is slided up and down with the fixed frame and connect.
8. the unilateral welding gun structure of industrial robot according to claim 5, it is characterised in that: the driving motor is servo
Motor.
9. the unilateral welding gun structure of described in any item industrial robots according to claim 1~8, it is characterised in that: the fixation
Frame is assembled by steel plate, and the upper end of the fixed frame is equipped with connecting flange, and the active electrode and Passive electrode are set vertically
It sets and the axis of the two is arranged in parallel.
10. the unilateral welding gun structure of described in any item industrial robots according to claim 1~8, it is characterised in that: the fixation
Frame is by connecting flange solid lock on industrial robot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811123227.XA CN109158746A (en) | 2018-09-26 | 2018-09-26 | The unilateral welding gun structure of industrial robot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811123227.XA CN109158746A (en) | 2018-09-26 | 2018-09-26 | The unilateral welding gun structure of industrial robot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109158746A true CN109158746A (en) | 2019-01-08 |
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ID=64892559
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811123227.XA Pending CN109158746A (en) | 2018-09-26 | 2018-09-26 | The unilateral welding gun structure of industrial robot |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814615A (en) * | 2021-09-30 | 2021-12-21 | 上汽通用五菱汽车股份有限公司 | Device for implementing automatic welding by single-side welding of door cover |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259643A (en) * | 2014-08-07 | 2015-01-07 | 安徽巨一自动化装备有限公司 | Single-contact spot-welding gun and application thereof |
| CN104475955A (en) * | 2014-12-01 | 2015-04-01 | 森德莱焊接技术（广州）有限公司 | Servo single-side spot welding unit and single-side spot welding method |
| CN205147566U (en) * | 2015-11-04 | 2016-04-13 | 广东华士科技股份有限公司 | Cardboard combination automatic weld machine |
| CN209050244U (en) * | 2018-09-26 | 2019-07-02 | 天津七所高科技有限公司 | The unilateral welder of car door |
-
2018
- 2018-09-26 CN CN201811123227.XA patent/CN109158746A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259643A (en) * | 2014-08-07 | 2015-01-07 | 安徽巨一自动化装备有限公司 | Single-contact spot-welding gun and application thereof |
| CN104475955A (en) * | 2014-12-01 | 2015-04-01 | 森德莱焊接技术（广州）有限公司 | Servo single-side spot welding unit and single-side spot welding method |
| CN205147566U (en) * | 2015-11-04 | 2016-04-13 | 广东华士科技股份有限公司 | Cardboard combination automatic weld machine |
| CN209050244U (en) * | 2018-09-26 | 2019-07-02 | 天津七所高科技有限公司 | The unilateral welder of car door |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814615A (en) * | 2021-09-30 | 2021-12-21 | 上汽通用五菱汽车股份有限公司 | Device for implementing automatic welding by single-side welding of door cover |
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