CN103484856A - Wide-band laser cladding powder feeding head - Google Patents
Wide-band laser cladding powder feeding head Download PDFInfo
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- CN103484856A CN103484856A CN201310445092.XA CN201310445092A CN103484856A CN 103484856 A CN103484856 A CN 103484856A CN 201310445092 A CN201310445092 A CN 201310445092A CN 103484856 A CN103484856 A CN 103484856A
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Abstract
A wide-band laser cladding powder feeding head comprises a vertically adjusting plate body, a fixing plate and a powder feeding structure, wherein the cross section of the vertically adjusting plate body is U-shaped; stripped sliding chutes are respectively formed in two side edges of the vertically adjusting plate body in the longitudinal direction; the fixing plate is L-shaped; a short side edge is fixed on the stripped sliding chutes in the two sides of the vertically adjusting plate body in the transverse direction; the powder feeding structure comprises a powder feeding connector, a powder feeding pipe and a powder feeding nozzle; the powder feeding connector is a cylinder; a threaded hole is formed in one side wall of the cylinder in the transverse direction; the powder feeding connector is transversely placed on the stripped sliding chutes in the two sides of the vertically adjusting plate body; one end of the powder feeding pipe is screwed on the threaded hole in the powder feeding connector; the powder feeding nozzle is fixed at the other end of the powder feeding pipe. The wide-band rectangular powder feeding effect is obtained through the shaping of the conveyed metal powder, the wide-band powder feeding matched with rectangular laser beams is realized, the relatively wide-band laser cladding is realized, and the laser cladding efficiency is improved. The powder feeding nozzle is simple in structure, and is convenient to mount.
Description
Technical field
The present invention relates to a kind of broadband laser cladding powder conveyer, be applied to laser wide-band cladding processing, belong to field of laser processing.
Background technology
Laser melting coating refers to that place selecteed coated material on by the cladding matrix surface makes it to melt with the matrix surface skim through laser irradiation with different adding material modes simultaneously, and it is extremely low to form extent of dilution after rapid solidification, become the top coat of metallurgical binding with matrix, significantly improve the processing method of wear-resisting, anti-corrosion, heat-resisting, the anti-oxidant and electrical specification of substrate surface, thereby reach the purpose of surface modification or reparation, both meet the requirement to the material surface specified property, saved again a large amount of noble elements.
Laser melting coating can be divided into two classes by the difference of powder feeding technique: the preset method of powder and synchronous powder feeding system method.Two kinds of method effects are similar, and the synchronous powder feeding system method has and easily realizes that automatization controls, and the laser energy absorption rate is high, without internal porosity, especially deposited metals pottery, can significantly improve the anti-cracking performance of cladding layer, makes the advantages such as hard ceramic can be uniformly distributed mutually in cladding layer.
For realizing the big area cladding, adopt the broadband melting and coating technique, beam cross-section shape is elongated rectangular shape, and the special shape of light beam has caused the complicated of synchronous powder feeding system device, to the difficulty increase of powder feeding shaping.Therefore be necessary to design a kind of structure and simplify, powder feeding is the synchronous powder feeding system device of concentrated practicality evenly.
Summary of the invention
The object of the invention is to, a kind of broadband laser cladding powder-feeding head is provided, by the metal-powder to carried, carry out shaping, obtain the powder delivery effect of broadband rectangle, realize the broadband powder feeding be complementary with the laser rectangular light beam, realized wider laser wide-band cladding, improved laser melting coating efficiency.This powder-feeding nozzle structure is simplified, easy for installation.
The invention provides a kind of broadband laser cladding powder-feeding head, comprising:
One vertical adjusting plate body, its section is the U font, vertically has the bar shaped chute on the dual-side of this vertical adjusting plate body;
One retaining plate, for L shaped, its short side laterally is fixed on the bar shaped chute of vertical adjusting plate body both sides;
One powder feeding structure, this powder feeding structure comprises:
One powder feeding joint, be cylinder, and this column side wall laterally has a threaded hole, and this powder feeding joint is horizontal on the bar shaped chute of vertical adjusting plate body both sides;
One powder conveying pipe, an end is screwed on the threaded hole of powder feeding joint;
One powder-feeding nozzle, it is fixed on the other end of powder conveying pipe.
The invention has the beneficial effects as follows, the laser melting coating metal-powder that the broadband laser cladding powder-feeding head is sent is evenly concentrated, and deflection is high.The powder conveyer structure is simplified, and cost is lower, has certain suitability.
The accompanying drawing explanation
For further illustrating concrete technology contents of the present invention, below in conjunction with embodiment and accompanying drawing, be described in detail as follows, wherein:
Fig. 1 is structural representation of the present invention.
Fig. 2 is the longitudinal sectional drawing of powder-feeding nozzle 33 in Fig. 1.
Fig. 3 is three kinds of forms of shaping sheet 331 in Fig. 2.
Embodiment
Refer to shown in Fig. 1 Fig. 2, the invention provides a kind of broadband laser cladding powder-feeding head, comprising:
One vertical adjusting plate body 1, its section is the U font, vertically has bar shaped chute 11 on the dual-side of this vertical adjusting plate body 1;
One retaining plate 2, for L shaped, its short side laterally is fixed on the bar shaped chute 11 of vertical adjusting plate body 1 both sides,
One powder feeding structure 3, this powder feeding structure comprises:
One powder feeding joint 31, be cylinder, and this column side wall laterally has a threaded hole, and this powder feeding joint 31 is horizontal on the bar shaped chute 11 of vertical adjusting plate body 1 both sides;
One powder conveying pipe 32, one ends are screwed on the threaded hole of powder feeding joint 31;
One powder-feeding nozzle 33, it is fixed on the other end of powder conveying pipe 32, and these powder-feeding nozzle 33 internal structures are flat taper, be divided into two-stage structure, one section is flat cone, and another section is rectangular cavities, in this rectangular cavities, relative both sides are fixed with the shaping sheet, and width of jet is further dwindled; Described shaping sheet be shaped as lamellar body, a long side of this lamellar body is straight flange, the other side is the gradual change arc; Described shaping sheet be shaped as lamellar body, a long side of this lamellar body is straight flange, the other side is two-way gradual change arc; Described shaping sheet be shaped as lamellar body, a long side of this lamellar body is straight flange, the angle of the short side of one and straight flange long side is 50 °, this short side and another long side junction are arc transition.
The invention provides a kind of broadband laser cladding powder-feeding head, comprise vertical adjusting plate body 1, retaining plate 2, powder feeding structure 3, powder feeding joint 31, powder conveying pipe 32, powder-feeding nozzle 33, the structures such as shaping sheet 331.The retaining plate of described powder-feeding head 2 one ends are arranged on the laser melting coating processing head, and the other end is fixed on vertical adjusting plate body 1 by two pairs of screws.Vertical adjusting plate body 1 is designed with bar shaped chute 11, and powder feeding joint 31 can screw the vertical position of screw in the bar shaped chute 11 of vertical adjusting plate body 1 by adjusting, regulates the height of powder-feeding nozzle 33.And can take and screw screw as axle, the angle of powder conveying pipe 32 is regulated in rotation, and powder and rectangular light spot position that powder-feeding nozzle 32 is sent are matched.
As shown in Figure 1, 2, 3, powder feeding joint 31 connects powder feeding equipment.Powder conveying pipe 32 is connected with powder feeding joint 31, and powder-feeding nozzle 33 is connected with powder conveying pipe 32 by adaptor.In the cladding course of processing, powder enters coupled powder conveying pipe 32 through powder feeding joint 31, through powder conveying pipe 32, enters into powder-feeding nozzle 33.As shown in Figure 2, metal-powder in the internal cavity of powder-feeding nozzle 33, through twice shaping concentrate and by cross section the rectangular channel identical with the laser facula shape evenly send.
The internal structure of powder-feeding nozzle 33 is flat taper, is divided into two-stage structure, and one section is flat cone, and another section is rectangular cavities, and in this rectangular cavities, relative both sides are fixed with shaping sheet 331.Powder-feeding nozzle 33 profile width design degree are 20-40mm, and its inner wall section is designed to upside-down triangle shape and is designed with the fillet of smooth surface, and process through grinding and polishing on surface, guarantee the smooth powder feeding of metal-powder, effectively prevent the accumulated powder phenomenon.Shaping sheet 331 design thicknesss are 0-1mm, with the powder surface in contact, are designed to smooth surface, and each part bonding surface scribbles silica gel sealing.Powder-feeding nozzle inside has two powder shaping concentrated areas, inner flat wimble structure is a shaping concentration zones, inner rectangular chamber and shaping sheet 331 have formed secondary reshaping concentrated area and powder spout, metal-powder, after twice shaping concentrated, becomes the broadband powder bundle be complementary with laser beam.Powder delivery length (10-30mm), the width (0-1mm) of powder-feeding nozzle 33 can change adjustment, are applicable to a certain extent the rectangular light beam cladding that size is different.
The shaping sheet 331 in powder-feeding nozzle 33 wherein, designed one group of part of different thickness (0-1mm), is applicable to the rectangular light beam cladding of different in width.Powder-feeding nozzle 33 has designed one group of part of different in width (20-40mm), is applicable to the rectangular light beam cladding of different lengths.Therefore the present invention has certain interchangeability and suitability.
In addition, the shaping sheet has designed some different structures, as shown in Figure 3, described shaping sheet 331 be shaped as lamellar body, a long side of this lamellar body is straight flange, the other side is that (Fig. 3 a) for the gradual change arc; Described shaping sheet be shaped as lamellar body, a long side of this lamellar body is straight flange, the other side is two-way gradual change arc (Fig. 3 b); Described shaping sheet be shaped as lamellar body, a long side of this lamellar body is straight flange, the angle of the short side of one and straight flange long side is 50 °, this short side and another long side junction are arc transition (Fig. 3 c).
Above embodiment only, for explanation technological thought of the present invention, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, do any change of doing on basis, within all falling into protection domain of the present invention in technical scheme.
Claims (6)
1. a broadband laser cladding powder-feeding head comprises:
One vertical adjusting plate body, its section is the U font, vertically has the bar shaped chute on the dual-side of this vertical adjusting plate body;
One retaining plate, for L shaped, its short side laterally is fixed on the bar shaped chute of vertical adjusting plate body both sides;
One powder feeding structure, this powder feeding structure comprises:
One powder feeding joint, be cylinder, and this column side wall laterally has a threaded hole, and this powder feeding joint is horizontal on the bar shaped chute of vertical adjusting plate body both sides;
One powder conveying pipe, an end is screwed on the threaded hole of powder feeding joint;
One powder-feeding nozzle, it is fixed on the other end of powder conveying pipe.
2. broadband laser cladding powder-feeding head according to claim 1, wherein the powder-feeding nozzle internal structure is flat taper, is divided into two-stage structure, and one section is flat cone, and another section is rectangular cavities.
3. broadband laser cladding powder-feeding head according to claim 2, wherein in rectangular cavities relatively both sides be fixed with the shaping sheet, width of jet is further dwindled.
4. broadband laser cladding powder-feeding head according to claim 1, wherein said shaping sheet be shaped as lamellar body, a long side of this lamellar body is straight flange, the other side is the gradual change arc.
5. broadband laser cladding powder-feeding head according to claim 4, wherein said shaping sheet be shaped as lamellar body, a long side of this lamellar body is straight flange, the other side is two-way gradual change arc.
6. broadband laser cladding powder-feeding head according to claim 5, wherein said shaping sheet be shaped as lamellar body, one long side of this lamellar body is straight flange, and the angle of the short side of one and straight flange long side is 50 °, and this short side and another long side junction are arc transition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310445092.XA CN103484856B (en) | 2013-09-25 | 2013-09-25 | Wide-band laser cladding powder feeding head |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310445092.XA CN103484856B (en) | 2013-09-25 | 2013-09-25 | Wide-band laser cladding powder feeding head |
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| CN103484856A true CN103484856A (en) | 2014-01-01 |
| CN103484856B CN103484856B (en) | 2015-06-17 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103952700A (en) * | 2014-05-13 | 2014-07-30 | 山西玉华再制造科技有限公司 | Adjusting support for welding device |
| CN105331974A (en) * | 2015-11-20 | 2016-02-17 | 华中科技大学 | Broadband laser fusion covering system and powder feeding nozzle thereof |
| CN110055528A (en) * | 2019-05-23 | 2019-07-26 | 西安交通大学 | A kind of annular coaxial dust feeder for ultrahigh speed laser melting coating |
| CN110961623A (en) * | 2018-09-30 | 2020-04-07 | 天津大学 | Powder feeding device of metal 3D printer |
| CN111593340A (en) * | 2020-05-08 | 2020-08-28 | 陕西天元智能再制造股份有限公司 | Laser cladding method for inner wall of hydraulic support oil cylinder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11775A (en) * | 1997-06-10 | 1999-01-06 | Mitsubishi Heavy Ind Ltd | Laser cladding device |
| CN2838760Y (en) * | 2005-09-23 | 2006-11-22 | 北京工业大学 | Side powder supplying nozzle for high-power laser wideband coating |
| JP2008142765A (en) * | 2006-12-13 | 2008-06-26 | Nissan Motor Co Ltd | Powder feeder and powder feeding method in laser clad working apparatus |
| CN103205748A (en) * | 2013-04-22 | 2013-07-17 | 杭州东通激光科技有限公司 | Wideband nozzle capable of uniformly feeding powder in laser processing |
-
2013
- 2013-09-25 CN CN201310445092.XA patent/CN103484856B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11775A (en) * | 1997-06-10 | 1999-01-06 | Mitsubishi Heavy Ind Ltd | Laser cladding device |
| CN2838760Y (en) * | 2005-09-23 | 2006-11-22 | 北京工业大学 | Side powder supplying nozzle for high-power laser wideband coating |
| JP2008142765A (en) * | 2006-12-13 | 2008-06-26 | Nissan Motor Co Ltd | Powder feeder and powder feeding method in laser clad working apparatus |
| CN103205748A (en) * | 2013-04-22 | 2013-07-17 | 杭州东通激光科技有限公司 | Wideband nozzle capable of uniformly feeding powder in laser processing |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103952700A (en) * | 2014-05-13 | 2014-07-30 | 山西玉华再制造科技有限公司 | Adjusting support for welding device |
| CN103952700B (en) * | 2014-05-13 | 2016-02-03 | 山西玉华再制造科技有限公司 | A kind of adjustment support of welding plant |
| CN105331974A (en) * | 2015-11-20 | 2016-02-17 | 华中科技大学 | Broadband laser fusion covering system and powder feeding nozzle thereof |
| CN105331974B (en) * | 2015-11-20 | 2017-09-26 | 华中科技大学 | A kind of broadband laser cladding system and its powder-feeding nozzle |
| CN110961623A (en) * | 2018-09-30 | 2020-04-07 | 天津大学 | Powder feeding device of metal 3D printer |
| CN110055528A (en) * | 2019-05-23 | 2019-07-26 | 西安交通大学 | A kind of annular coaxial dust feeder for ultrahigh speed laser melting coating |
| CN111593340A (en) * | 2020-05-08 | 2020-08-28 | 陕西天元智能再制造股份有限公司 | Laser cladding method for inner wall of hydraulic support oil cylinder |
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| CN103484856B (en) | 2015-06-17 |
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