CN205393794U - A encircle soldered connection for spot welding of laser centre gripping - Google Patents
A encircle soldered connection for spot welding of laser centre gripping Download PDFInfo
- Publication number
- CN205393794U CN205393794U CN201620228582.3U CN201620228582U CN205393794U CN 205393794 U CN205393794 U CN 205393794U CN 201620228582 U CN201620228582 U CN 201620228582U CN 205393794 U CN205393794 U CN 205393794U
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- CN
- China
- Prior art keywords
- laser
- spot welding
- plumb joint
- axle center
- collimation lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses an encircle soldered connection for spot welding of laser centre gripping, including laser welder head, " C " clamp and centre gripping cylinder, laser welder head erects the upper shed that is fixed in " C " clamp, and centre gripping cylinder drive connection " C " clamp opens and shuts, laser welder head from top to bottom machinery connects QBH joint, collimating mirror, focusing mirror and gathering regulation head with the axle center, the collimating mirror is installed on eccentric sleeve by the collimation lens, collimation lens misalignment laser welder head's mechanical axle center, and the rotating electrical machines drives to change connects eccentric sleeve, and eccentric sleeve is rotatory around mechanical axle center. The utility model discloses because collimation lens misalignment laser welder head's mechanical axle center, collimation lens are followed eccentric sleeve and is rotated around the rotation of mechanical axle center, the laser beam stays annular bonding wire on the work piece, enlarge the crator area, improves welding quality, and equipment structure is simple, investment cost is low.
Description
Technical field
This utility model relates to bite soldering equipment technical field, be specifically related to a kind of for laser clamp spot welding around plumb joint.
Background technology
In traditional clamping resistance spot welding system, the opening at C clamp respectively fills an electrode up and down.During welding, two-layer welded piece is clamped between two electrodes, between the two poles of the earth, pass to powerful electric current simultaneously, when welding current is constant, due to the contact resistance between workpiece material, produce high temperature, and compacted material is welded together mutually, on welded piece, leave the pressure welding crator of diameter 6-8mm diameter.Its expression formula is as follows:
Q=I"RT--------------(1)
In formula: Q temperature
I " by contact current square
R contact resistance
T weld interval
From formula it can be seen that when electric current is constant, resistance is more big, and the temperature of generation is more high, more easily realizes welding.Less for bulk resistor and contact resistance, the heat radiation good material of heat conduction then needs bigger electric current.
Laser can be made very big due to its power density, when it acts on material two pieces overlapping, can the welding by melt material in the short period of time, but owing to the light beam of laser is less, only tens microns, though through thermal diffusion, but the solder joint formed is still little, when adopting laser to carry out spot welding for this, existing technology is: by certain way, solder joint is launched into a little line segment, or by 2-D optical scanning system, solder joint is scanned into ring-type or C shape pattern, to increase the size of faying face.Such as the straight line soldering tip of IPG company of Germany invention, during welding, when plumb joint is motionless, workpiece can leave little line segment long for about 4mm.The vibration mirror scanning remote welding head of HAIYA company, then when plumb joint is motionless, can stay the next pattern preset, to expand solder side on workpiece.These imported products are too high due to cost, currently without forming bigger market at home.
Summary of the invention
The technical problems to be solved in the utility model be to provide a kind of for laser clamp spot welding around plumb joint, namely install additional around device in traditional laser welding system, in the process of spot welding, when plumb joint is motionless, collimation lens is followed the rotation of excentric sleeve and is rotated around machinery axle center, and laser beam leaves the bonding wire of annular on workpiece, expands crator area, improving welding quality, device structure is simple, cost of investment is low.
This utility model is achieved through the following technical solutions:
A kind of for laser clamp spot welding around plumb joint, including laser welding system, " C " clevis and gripper cylinder, the upper shed being fixed on " C " clevis is erect in laser welding system, gripper cylinder drives and connects " C " clevis folding, the described laser welding system from top to bottom mechanical coaxial heart connects QBH joint, collimating mirror, focus lamp and assembles adjustment head, described collimating mirror is installed on excentric sleeve by collimation lens, the mechanical axle center of collimation lens center deviation laser welding system, electric rotating machine turns connection excentric sleeve, and excentric sleeve rotates around machinery axle center.
The further improvement project of this utility model is, described electric rotating machine turns connection change-speed gearing and pays, and the excentric sleeve that is in transmission connection paid by change-speed gearing.Electric rotating machine is paid after deceleration through change-speed gearing, then drives excentric sleeve to rotate around machinery axle center, controls speed.
This utility model further improvement project is, described excentric sleeve two ends are provided with heavy caliber ball bearing.Two dish heavy caliber ball bearings are installed at excentric sleeve two ends, it is possible to reduce friction during revolution, operate more smooth and easy.
This utility model further improvement project is that described focus lamp is installed below protective glass.Protection eyeglass plays protection focusing lens and collimation lens effect.
This utility model further improvement project is, the plumb joint front port below described protective glass is open ports, and open ports place is provided with traction therapy that air curtain.Because plumb joint front end is unlimited, it does not have the spray nozzle device on cutting head, your air curtain of traction therapy effectively prevents metal sparks sputtering from damaging protective glass and upper structure thereof.
This utility model further improvement project is, described protective glass is arranged to drawer type, and protection eyeglass is arranged in drawer one.Described focus lamp is arranged to drawer type, and focusing lens is arranged in drawer two.Easy for installation.
This utility model further improvement project is, described " C " clevis under shed upper surface is provided with clamping salient point.So that location clamping two-layer workpiece to be welded is under plumb joint light-emitting window.
This utility model further improvement project is, described " C " clevis top is fixed in the wrist of robot or in the frame of electric welding machine.Along with the Wrist-sport of robot works freely.
This utility model compared with prior art, has following obvious advantage:
This utility model deviates the mechanical axle center of laser welding system due to collimation lens center, collimation lens is followed excentric sleeve and is rotated around the rotation of machinery axle center, and laser beam leaves the bonding wire of annular on workpiece, expands crator area, improving welding quality, device structure is simple, cost of investment is low.
Accompanying drawing explanation
Fig. 1 is this utility model front view.
Fig. 2 is this utility model collimating mirror eccentric rotary STRUCTURE DECOMPOSITION figure.
Fig. 3 is this utility model light path principle figure.
Fig. 4 is that this utility model is installed in the wrist of robot schematic diagram.
Detailed description of the invention
nullSuch as Fig. 1、Shown in Fig. 2，This utility model includes laser welding system 1、" C " clevis 2 and gripper cylinder 3，The upper shed being fixed on " C " clevis 2 is erect in laser welding system 1，Gripper cylinder 3 drives and connects the folding of " C " clevis 2，The described laser welding system 1 from top to bottom mechanical coaxial heart connects QBH joint 11、Collimating mirror 12、Focus lamp 13、Protective glass 14 and gathering adjustment 16，Described collimating mirror 12 is installed on excentric sleeve 122 by collimation lens 121，The mechanical axle center 4 of collimation lens 121 center deviation laser welding system，Excentric sleeve 122 two ends are provided with heavy caliber ball bearing 125，Electric rotating machine 123 turns connection change-speed gearing and pays 124，Change-speed gearing is paid 124 and is in transmission connection excentric sleeve 122，Excentric sleeve 122 rotates around machinery axle center 4.
Plumb joint front port below described protective glass 14 is open ports, and open ports place is provided with traction therapy that air curtain 15.
Described protective glass 14, focus lamp 13 are arranged to drawer type, and protection eyeglass is arranged in drawer 1, and focusing lens 131 is arranged in drawer 2 131.
Described " C " clevis 2 under shed upper surface is provided with clamping salient point 21.
As it is shown on figure 3, dotted line is the mechanical axle center 4 of plumb joint in figure, overlapping with former laser beam axis, laser, from A point, through collimation lens 121, becomes the laser wire harness of Shu Pinghang, and then this group parallel laser focuses on workpiece B through focusing lens 131.
In this process, incidence point, beam expanding lens, focus lamp three's any of parts translate on its original position, all the focus dropping on workpiece will be made to translate.But what be not that any point can be satisfactory achieves the goal.Such as incidence point generation translational motion, involving " optical fiber " or flight light path, its frame for movement is not only extremely complex, and can introduce some unstable factors, so mobile laser light incident point should not be adopted to carry out moving focal point；As focusing lens moves, feature due to clamping weldering, workpiece is before welding, " C " type clamping device is had to be fixed by the focusing block of workpiece and laser welding system, simultaneously focus lamp is farthest from " A ", nearest from workpiece, will allow the focus shift on workpiece, the distance of the required movement of focusing lens is maximum comparatively speaking, also should not carry out moving focal point with mobile focusing lens.
It is the most appropriate that this utility model adopts mobile collimation lens to change bifocal position, the mechanical axle center (being also focusing lens and the optical axis of incoming fiber optic A point) of collimating mirror center deviation plumb joint, just on workpiece C, leave pad by focus lamp, then pass through rotating mechanism and rotate around machinery axle center by the collimation lens of disalignment.Then the laser beam after collimation, just revolves round the sun along the mechanical axial line of plumb joint, and the laser beam of revolution just leaves the annulus track centered by focus lamp optical axis by focus lamp on workpiece.
As shown in Figure 4, described " C " clevis 2 top is fixed in the wrist 5 of robot.So it can be operated along with the Wrist-sport of robot.
" C " type clamping laser controls very simple around spot-welding equipment, for Automobile Welding assembling line, when original clamping resistance spot welding is carried out transformation replacement, if new " instrument value " data, replace data during original electric resistance welding, continue to use original motor program and " clamping " " welding " two instructions, it is possible to complete its whole welding processes.After workpiece puts in place, control system sends clamping instruction, and gripper cylinder is by Workpiece clamping.After workpiece is clamped, control system sends energising welding instruction, lasing fluorescence, meanwhile starts electric rotating machine, and electric rotating machine drives collimating mirror to rotate a circle, and completes to surround welding process.
Therefore " C " type is clamped laser and will become very simple around the spot welding replacement existing resistance clamping whole engineering of spot welding system.Supporting if used in the Solid State Lasers adopted a large amount of in welding field, its cost also will become very easily to accept.
Claims (9)
- null1. one kind for laser clamping spot welding around plumb joint，Including laser welding system (1)、" C " clevis (2) and gripper cylinder (3)，The upper shed being fixed on " C " clevis (2) is erect in laser welding system (1)，Gripper cylinder (3) drives and connects " C " clevis (2) folding，Described laser welding system (1) the from top to bottom mechanical coaxial heart connects QBH joint (11)、Collimating mirror (12)、Focus lamp (13) and gathering regulate head (16)，It is characterized in that: described collimating mirror (12) is installed on excentric sleeve (122) by collimation lens (121)，The mechanical axle center (4) of collimation lens (121) center deviation laser welding system，Electric rotating machine (123) turns connection excentric sleeve (122)，Excentric sleeve (122) rotates around machinery axle center (4).
- 2. according to claim 1 a kind of for laser clamp spot welding around plumb joint, it is characterised in that: described electric rotating machine (123) turns connection change-speed gearing and pays (124), and change-speed gearing is paid (124) and is in transmission connection excentric sleeve (122).
- 3. according to claim 1 and 2 a kind of for laser clamp spot welding around plumb joint, it is characterised in that: described excentric sleeve (122) two ends are provided with heavy caliber ball bearing (125).
- 4. according to claim 3 a kind of for laser clamp spot welding around plumb joint, it is characterised in that: described focus lamp (13) is installed below protective glass (14).
- 5. according to claim 4 a kind of for laser clamp spot welding around plumb joint, it is characterised in that: the plumb joint front port of described protective glass (14) lower section is open ports, and open ports place is provided with your air curtain (15) of traction therapy.
- 6. according to claim 4 a kind of for laser clamp spot welding around plumb joint, it is characterised in that: described protective glass (14) is arranged to drawer type, and protection eyeglass is arranged in drawer one (142).
- 7. according to claim 1 a kind of for laser clamp spot welding around plumb joint, it is characterised in that: described focus lamp (13) is arranged to drawer type, and focusing lens (131) is arranged in drawer two (132).
- 8. according to claim 1 a kind of for laser clamp spot welding around plumb joint, it is characterised in that: described " C " clevis (2) under shed upper surface is provided with clamping salient point (21).
- 9. according to claim 1 a kind of for laser clamp spot welding around plumb joint, it is characterised in that: described " C " clevis (2) top is fixed on that the wrist (5) of robot is upper or in the frame of electric welding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620228582.3U CN205393794U (en) | 2016-03-23 | 2016-03-23 | A encircle soldered connection for spot welding of laser centre gripping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620228582.3U CN205393794U (en) | 2016-03-23 | 2016-03-23 | A encircle soldered connection for spot welding of laser centre gripping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205393794U true CN205393794U (en) | 2016-07-27 |
Family
ID=56423281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620228582.3U Withdrawn - After Issue CN205393794U (en) | 2016-03-23 | 2016-03-23 | A encircle soldered connection for spot welding of laser centre gripping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205393794U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618932A (en) * | 2016-03-23 | 2016-06-01 | 江苏海德威激光科技发展有限公司 | Loop wire welding head used for laser clamping spot welding |
| CN108568598A (en) * | 2017-03-07 | 2018-09-25 | 现代自动车株式会社 | Laser soldering device |
-
2016
- 2016-03-23 CN CN201620228582.3U patent/CN205393794U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618932A (en) * | 2016-03-23 | 2016-06-01 | 江苏海德威激光科技发展有限公司 | Loop wire welding head used for laser clamping spot welding |
| CN108568598A (en) * | 2017-03-07 | 2018-09-25 | 现代自动车株式会社 | Laser soldering device |
| CN108568598B (en) * | 2017-03-07 | 2022-01-04 | 现代自动车株式会社 | Laser welding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160727 Effective date of abandoning: 20170929 |
|
| AV01 | Patent right actively abandoned |