CN105479004A - Use method for welding wire calibration device for laser filler wire welding - Google Patents
Use method for welding wire calibration device for laser filler wire welding Download PDFInfo
- Publication number
- CN105479004A CN105479004A CN201510967448.5A CN201510967448A CN105479004A CN 105479004 A CN105479004 A CN 105479004A CN 201510967448 A CN201510967448 A CN 201510967448A CN 105479004 A CN105479004 A CN 105479004A
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- Prior art keywords
- welding
- movable plate
- wire
- direction movable
- conical gear
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Classifications
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- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
- B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
- B23K26/0884—Devices involving movement of the laser head in at least one axial direction in at least two axial directions in at least in three axial directions, e.g. manipulators, robots
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a use method for a welding wire calibration device for laser filler wire welding. A welding wire is sent into a calibration mechanism to be overall flatly placed, and the relative position of the laser calibration mechanism and a laser beam is changed according to a wire feed manner; a wire feeding gun head used for laser filler wire welding is put into a clamping seat, and after the angle of the gun head is adjusted, a gun head fixing nut is used for conducting fixing; the gun head is adjusted in the X direction and the Y direction through a position adjusting nut, and the relation between the position of a laser spot and the position of the pointed end of the welding wire is determined through the relative moving of an X-direction moving plate and a Y-direction moving plate; and after the relative position on the plane is adjusted, a rotating handle is adjusted to control the position of the pointed end of the welding wire in the perpendicular direction, vertical movement of a screw nut is controlled, and different positions of a base plate box are obtained. By means of the technical scheme of the use method, the welding wire feeding direction in laser filler wire welding is adjusted, the stability of the welding process is improved, the adjusting time of the welding wire feeding position is shortened, and consistency of the quality of a welding line is ensured.
Description
The present patent application is the divisional application of parent application " a kind of wire filling laser welding welding wire calibrating installation ", and the applying date of parent application is on November 26th, 2013, and the application number of parent application is 2013106133549.
Technical field
The present invention relates to technical field of laser processing, more particularly, particularly a kind of wire filling laser welding wire feed calibrating installation simultaneously adding welding wire when laser weld.
Background technology
Along with modern metallurgy and the progress of processing technology, ferritic stainless steel obtains great development.Low nickel or without nickel, less by international market influence of fluctuations, low price, belongs to very economical steel grade in its element composition.Meanwhile, compared with austenitic stainless steel, ferritic stainless steel also can obtain good decay resistance, therefore in recent years at home iron and steel produce in proportion improve year by year.But ferritic stainless steel is in welding and use procedure, and due to the impact of Thermal Cycle and metallurgy factor, the problems such as the brittle and precipitate embrittlement of coarse-grain often appear in heat affected area.Therefore find the effective welding technique can avoiding or alleviate these problems and become important topic in face of scholar.
High energy beam secondary industry developed rapidly in the last few years, and wherein method for laser welding most is representative, and this welding method is high with energy density, and heat affected area density is little, and welding residual stress and the advantage such as ess-strain is little, make it be generalized to gradually in industrial production.Wherein, wire filling laser welding as a branch of Laser Welding research, also have appearance of weld attractive in appearance overcome weld seam in not filler wire welding situation seriously stay problem; Fill metal and can improve seam organization, the transition of optimize welding line composition, reduce laser welding process to the requirement of workpiece grooves machining accuracy, and the narrow gap laser photocoagulation of heavy thickness plate can be realized.Therefore this welding method is welded with larger application prospect for ferritic stainless steel.
But in wire filling laser welding, LASER SPECKLE is less, require that LASER SPECKLE and welding wire are accurately corresponding simultaneously, ensure good appearance of weld and welding process smoothly.Traditional wire feeder is more restricted in the amplitude of accommodation of each spatial axes, and complex structure, is difficult to ensure to stablize wire feed when not having special wire feeding device simultaneously.And in many situations, due to the restriction of condition, at the rifle head that the right and wrong of producing or in experiment, wire feeder often adopts are special, therefore adopt common fixed form to be difficult to ensure the stability of solder wire convey and the simplification of adjustment process.
Summary of the invention
Technical purpose of the present invention is to overcome the deficiencies in the prior art, a kind of wire filling laser welding welding wire calibrating installation is provided, the direction that the application of the invention technical scheme can effectively regulate welding wire in wire filling laser welding to send to, improve the stability of welding process, reduce welding wire feeding position regulating time, ensure weldquality uniformity.
The technology of the present invention object is achieved by following technical proposals:
A kind of wire filling laser welding welding wire calibrating installation, comprises substrate casing, Y-direction movable plate, X-direction movable plate, welding gun head deck, adjusting position nut, fixing rifle head nut, rotary handle, output shaft, the first conical gear, the second conical gear, leading screw, lead screw guide rails and elevating mechanism casing.
Substrate casing arranges the Y-direction movable plate be slidably matched with substrate casing, and substrate casing is flexibly connected by chute with Y-direction movable plate; In the Y direction movable plate is arranged the X-direction movable plate be slidably matched with Y-direction movable plate, both are flexibly connected by chute.Described X-direction movable plate arranges welding gun head deck, between described X-direction movable plate and welding gun head deck, adjusting position nut is set, and fixed by adjusting position nut and adjust, described welding gun head deck arranges fixing rifle head nut, for fixing welding gun head.Between Y-direction movable plate and substrate casing and between X-direction and Y-direction movable plate, polyester fiber cloth is set, and adopts polyester fiber cloth as contact material, to increase the frictional force between two plates.Utilize adjusting position nut for spanner, move Y-direction movable plate and X-direction movable plate by chute in the x, y direction.
Arrange one for welding gun head at substrate box house and vertical lifting mechanism is provided, ensure the precision of vertical lift, and adjustment, easy to maintenance, thus improve mobile accuracy and the reliability of rifle head in vertical direction.Substrate casing side arranges rotary handle, described rotary handle is coaxially connected with output shaft, and coaxially connect the first conical gear by output shaft, described first conical gear is connected with the second conical gear, described second conical gear is connected with leading screw, described leading screw, second conical gear and the first conical gear are arranged in elevating mechanism casing, elevating mechanism casing is stretched out in one end of described leading screw, through lead screw guide rails, contact with the upper cover of substrate casing, so realize by the mechanics transmission of rotary handle to leading screw, to realize the upwards downward motion of leading screw.Free gap is set between the upper cover and Y-direction movable plate of substrate casing, to realize the movement in vertical direction of guide screw movement adjustment rifle head.Power transmission shaft is vertical with output shaft to be arranged, power transmission shaft connects the second conical gear, the second conical gear is meshed with the first conical gear, and the two ends of power transmission shaft arrange bearing respectively, one end of power transmission shaft also connects profile of tooth belt wheel, and cog belt wheel belt is moved feed screw nut and rotated.
Between X-direction movable plate and welding gun head deck, select four adjusting position nuts, namely four nuts are set on rifle head deck substrate, at the counterbore that their setting position respectively corresponding X-direction movable plate is dug, to realize both being fixedly linked.
Technical scheme of the present invention is by horizontal plane adjusting device and vertical lifting mechanism, utilize the adjustment space on three directions in space, X-direction movable plate and Y-direction movable plate is regulated by four pieces of nuts on rifle head deck, the rotary handle being rotatably provided in substrate box external body drives output shaft, power transmission shaft is driven to rotate by conical gear again, therefore the profile of tooth belt wheel being arranged on power transmission shaft upper end also rotates, drive feed screw nut rotates, thus reach the object improved with reducing substrate, and stable governing speed and precision can be obtained.
Compared with prior art, technical scheme of the present invention has following beneficial effect: (1) significantly decreases and regulates welding wire to send the time with laser relative position to; (2) problem that wire feed rifle head easily rocked, affected welding process stability is fundamentally solved; (3) improve degree of regulation, completely can organize the meticulous adjustment of laser and the most advanced and sophisticated relative position of welding wire in front wire feed and rear dragging wire feed.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of wire filling laser welding welding wire calibrating installation of the present invention, and wherein 1 is substrate casing; 2 is Y-direction movable plate; 3 is X-direction movable plate; 4 is welding gun head deck; 5 is adjusting position nut; 6 is fixing rifle head nut; 7 is rotary handle.
Fig. 2 is the structural representation of the vertical lifting mechanism of wire filling laser welding welding wire calibrating installation of the present invention, and wherein 7 is rotary handle, and 8 is output shaft; 9 is the first conical gear; 10 is the second conical gear; 11 is leading screw; 12 is lead screw guide rails; 13 is elevating mechanism casing.
Detailed description of the invention
Technical scheme of the present invention is further illustrated below in conjunction with specific embodiment.
As shown in accompanying drawing 1-2, wire filling laser welding welding wire calibrating installation of the present invention, 1 is substrate casing; 2 is Y-direction movable plate; 3 is X-direction movable plate; 4 is welding gun head deck; 5 is adjusting position nut; 6 is fixing rifle head nut; 7 is rotary handle, and 8 is output shaft; 9 is the first conical gear; 10 is the second conical gear; 11 is leading screw; 12 is lead screw guide rails; 13 is elevating mechanism casing.
Substrate casing arranges the Y-direction movable plate be slidably matched with substrate casing, and substrate casing is flexibly connected by chute with Y-direction movable plate; In the Y direction movable plate is arranged the X-direction movable plate be slidably matched with Y-direction movable plate, both are flexibly connected by chute.Described X-direction movable plate arranges welding gun head deck, is fixed by adjusting position nut between described X-direction movable plate and welding gun head deck and adjust, described welding gun head deck arranges fixing rifle head nut, for fixing welding gun head.All adopt polyester fiber cloth as contact material between Y-direction movable plate and substrate casing and between X-direction and Y-direction movable plate, to increase the frictional force between two plates.Utilize adjusting position nut for spanner, move Y-direction movable plate and X-direction movable plate by chute in the x, y direction.
Arrange one for welding gun head at substrate box house and vertical lifting mechanism is provided, ensure the precision of vertical lift, and adjustment, easy to maintenance, thus improve mobile accuracy and the reliability of rifle head in vertical direction.Substrate casing side arranges rotary handle, described rotary handle is coaxially connected with output shaft, and coaxially connect the first conical gear by output shaft, described first conical gear is connected with the second conical gear, described second conical gear is connected with leading screw, described leading screw, second conical gear and the first conical gear are arranged in elevating mechanism casing, elevating mechanism casing is stretched out in one end of described leading screw, through lead screw guide rails, contact with the upper cover of substrate casing (not marking in figure), so realize by the mechanics transmission of rotary handle to leading screw, to realize the upwards downward motion of leading screw.Free gap is set between the upper cover and Y-direction movable plate of substrate casing, to realize the movement in vertical direction of guide screw movement adjustment rifle head.Power transmission shaft is vertical with output shaft to be arranged, power transmission shaft connects the second conical gear, the second conical gear is meshed with the first conical gear, and the two ends of power transmission shaft arrange bearing respectively, one end of power transmission shaft also connects profile of tooth belt wheel, and cog belt wheel belt is moved feed screw nut and rotated.
Between X-direction movable plate and welding gun head deck, select four adjusting position nuts, namely four nuts are set on rifle head deck substrate, at the counterbore that their setting position respectively corresponding X-direction movable plate is dug, to realize both being fixedly linked.
Concrete use procedure of the present invention comprises the steps:
Step one, send welding wire to correcting mechanism entirety and keep flat, change the relative position of laser calibration mechanism and laser beam according to the difference of wire feeding mode.
Step 2, wire feed rifle head used for wire filling laser welding is put into deck, after adjusting rifle brilliance degree, use fixing rifle head nut to be fixed rifle head.
Step 3, the adjustment carried out the rifle head fixed by adjusting position nut in X-direction and Y-direction are now utilize the relative movement of X-direction movable plate and Y-direction movable plate to reach the relation determined between LASER SPECKLE and welding wire tip location.
Step 4, after adjusting the relative position in plane, rotary handle is regulated to control the most advanced and sophisticated position in vertical direction of welding wire, transmission is carried out by output shaft, the first conical gear, the second conical gear, leading screw and lead screw guide rails in inside, control moving up and down of feed screw nut, obtain the diverse location of substrate casing.
Above to invention has been exemplary description; should be noted that; when not departing from core of the present invention, any simple distortion, amendment or other those skilled in the art can not spend the equivalent replacement of creative work all to fall into protection scope of the present invention.
Claims (4)
1. the using method of wire filling laser welding welding wire calibrating installation, it is characterized in that, described wire filling laser welding welding wire calibrating installation comprises substrate casing, Y-direction movable plate, X-direction movable plate, welding gun head deck, adjusting position nut, fixing rifle head nut, rotary handle, output shaft, the first conical gear, the second conical gear, leading screw, lead screw guide rails and elevating mechanism casing, wherein:
Substrate casing arranges the Y-direction movable plate be slidably matched with substrate casing; In the Y direction movable plate is arranged the X-direction movable plate be slidably matched with Y-direction movable plate; Described X-direction movable plate arranges welding gun head deck, between described X-direction movable plate and welding gun head deck, adjusting position nut is set, described welding gun head deck arranges fixing rifle head nut; In described substrate casing side, rotary handle is set, described rotary handle is coaxially connected with output shaft, and coaxially connect the first conical gear by output shaft, described first conical gear is connected with the second conical gear, described second conical gear is connected with leading screw, and described leading screw, the second conical gear and the first conical gear are arranged in elevating mechanism casing, and elevating mechanism casing is stretched out in one end of described leading screw, through lead screw guide rails, contact with the upper cover of substrate casing; Between the upper cover and Y-direction movable plate of substrate casing, free gap is set;
When using, carry out according to following step:
Step one, send welding wire to correcting mechanism entirety and keep flat, change the relative position of laser calibration mechanism and laser beam according to the difference of wire feeding mode.
Step 2, wire feed rifle head used for wire filling laser welding is put into deck, after adjusting rifle brilliance degree, use fixing rifle head nut to be fixed rifle head.
Step 3, the adjustment carried out the rifle head fixed by adjusting position nut in X-direction and Y-direction are now utilize the relative movement of X-direction movable plate and Y-direction movable plate to reach the relation determined between LASER SPECKLE and welding wire tip location.
Step 4, after adjusting the relative position in plane, rotary handle is regulated to control the most advanced and sophisticated position in vertical direction of welding wire, transmission is carried out by output shaft, the first conical gear, the second conical gear, leading screw and lead screw guide rails in inside, control moving up and down of feed screw nut, obtain the diverse location of substrate casing.
2. the using method of wire filling laser welding welding wire calibrating installation according to claim 1, is characterized in that, described substrate casing is flexibly connected by chute with Y-direction movable plate, and described Y-direction movable plate and X-direction movable plate are flexibly connected by chute.
3. the using method of wire filling laser welding welding wire calibrating installation according to claim 1, is characterized in that, between described Y-direction movable plate and substrate casing and between X-direction and Y-direction movable plate, arrange polyester fiber cloth.
4. the using method of wire filling laser welding welding wire calibrating installation according to claim 1, is characterized in that, selects four adjusting position nuts between X-direction movable plate and welding gun head deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967448.5A CN105479004B (en) | 2013-11-26 | 2013-11-26 | Use method for welding wire calibration device for laser filler wire welding |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967448.5A CN105479004B (en) | 2013-11-26 | 2013-11-26 | Use method for welding wire calibration device for laser filler wire welding |
| CN201310613354.9A CN104668775B (en) | 2013-11-26 | 2013-11-26 | A kind of wire filling laser welding welding wire calibrating installation |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310613354.9A Division CN104668775B (en) | 2013-11-26 | 2013-11-26 | A kind of wire filling laser welding welding wire calibrating installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105479004A true CN105479004A (en) | 2016-04-13 |
| CN105479004B CN105479004B (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510967448.5A Active CN105479004B (en) | 2013-11-26 | 2013-11-26 | Use method for welding wire calibration device for laser filler wire welding |
| CN201310613354.9A Active CN104668775B (en) | 2013-11-26 | 2013-11-26 | A kind of wire filling laser welding welding wire calibrating installation |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310613354.9A Active CN104668775B (en) | 2013-11-26 | 2013-11-26 | A kind of wire filling laser welding welding wire calibrating installation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109366524A (en) * | 2018-11-21 | 2019-02-22 | 安徽江淮汽车集团股份有限公司 | Soldering appliance calibration tool |
| CN110899973A (en) * | 2019-12-02 | 2020-03-24 | 北京首钢冷轧薄板有限公司 | Method and device for improving weld joint quality |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453551B (en) * | 2019-07-19 | 2021-08-13 | 胡军 | Subway is built and is carried out skew calibration adjusting device with making things convenient for rail |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201217126Y (en) * | 2008-05-23 | 2009-04-08 | 宝山钢铁股份有限公司 | Wire drive unit of laser wire-filling welding device |
| CN201249331Y (en) * | 2008-08-28 | 2009-06-03 | 宝山钢铁股份有限公司 | Wire feeder of laser welding with hot wire capable of self-adjusting and controlling heating temperature |
| CN201390782Y (en) * | 2009-03-17 | 2010-01-27 | 东莞理工学院 | Wire feeding device of laser fusion-coating system |
| JP2010247184A (en) * | 2009-04-15 | 2010-11-04 | Hiroaki Ochiai | Tig welding head, and automatic welding apparatus with the tig welding head |
| CN201783762U (en) * | 2010-01-21 | 2011-04-06 | 北京工业大学 | Adjustable laser filler wire welding work head |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4131783A (en) * | 1977-01-31 | 1978-12-26 | Kensrue Milo M | Welding apparatus |
| DE3238497A1 (en) * | 1982-10-18 | 1984-04-19 | Messer Griesheim Gmbh, 6000 Frankfurt | Apparatus for orbital arc welding |
| CN201988869U (en) * | 2011-03-11 | 2011-09-28 | 张瑞廷 | Triaxial adjusting clamp |
| CN202137528U (en) * | 2011-06-21 | 2012-02-08 | 上海船舶工艺研究所 | Welding gun four-dimension random adjusting device |
-
2013
- 2013-11-26 CN CN201510967448.5A patent/CN105479004B/en active Active
- 2013-11-26 CN CN201310613354.9A patent/CN104668775B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201217126Y (en) * | 2008-05-23 | 2009-04-08 | 宝山钢铁股份有限公司 | Wire drive unit of laser wire-filling welding device |
| CN201249331Y (en) * | 2008-08-28 | 2009-06-03 | 宝山钢铁股份有限公司 | Wire feeder of laser welding with hot wire capable of self-adjusting and controlling heating temperature |
| CN201390782Y (en) * | 2009-03-17 | 2010-01-27 | 东莞理工学院 | Wire feeding device of laser fusion-coating system |
| JP2010247184A (en) * | 2009-04-15 | 2010-11-04 | Hiroaki Ochiai | Tig welding head, and automatic welding apparatus with the tig welding head |
| CN201783762U (en) * | 2010-01-21 | 2011-04-06 | 北京工业大学 | Adjustable laser filler wire welding work head |
Non-Patent Citations (1)
| Title |
|---|
| 李金良等: ""用ScomPI机器人对中国焊丝进行校准"", 《哈尔滨理工大学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109366524A (en) * | 2018-11-21 | 2019-02-22 | 安徽江淮汽车集团股份有限公司 | Soldering appliance calibration tool |
| CN110899973A (en) * | 2019-12-02 | 2020-03-24 | 北京首钢冷轧薄板有限公司 | Method and device for improving weld joint quality |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105479004B (en) | 2017-03-22 |
| CN104668775A (en) | 2015-06-03 |
| CN104668775B (en) | 2016-07-13 |
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