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DE-212024000410-U1 - Handheld laser processing head

DE212024000410U1DE 212024000410 U1DE212024000410 U1DE 212024000410U1DE-212024000410-U1

Abstract

Handheld laser processing head, comprising the following: a base body (1) and a gas supply assembly; wherein the base body (1) comprises a laser channel (54) for transmitting the laser beam, wherein the laser channel (54) is provided with a light outlet; wherein the gas supply assembly comprises a gas channel (521) for transferring the gas, wherein the gas channel (521) has a gas outlet (522), wherein at least a part of the gas supply assembly is integrated into the base body (1), wherein the gas channel (521) is arranged independently of the laser channel (54).

Assignees

  • SHENZHEN HUANRI LASER CO LTD

Dates

Publication Date
20260513
Application Date
20240927
Priority Date
20230927

Claims (15)

  1. A handheld laser processing head comprising: a base body (1) and a gas supply assembly; wherein the base body (1) comprises a laser channel (54) for transmitting the laser beam, the laser channel (54) being provided with a light outlet; wherein the gas supply assembly comprises a gas channel (521) for transmitting the gas, the gas channel (521) having a gas outlet (522), wherein at least a part of the gas supply assembly is integrated into the base body (1), the gas channel (521) being arranged independently of the laser channel (54).
  2. Handheld laser processing head according to Claim 1 , comprising a nozzle (513) which or comprises multiple outlet openings; wherein the gas outlet (522) and the light outlet may be configured for separate use, partially separate use, partially shared use or shared use of the outlet openings.
  3. Handheld laser processing head according to Claim 1 , comprising a wire feed assembly, wherein the wire feed assembly includes a wire outlet channel (532) configured to feed the welding wire, wherein the wire outlet channel (532) is arranged to extend along a curved surface on any side face of the base body (1), wherein at least a part of the wire feed assembly is integrated into the base body (1), wherein the wire outlet channel (532) and the laser channel (54) are arranged completely independently of each other, wherein the wire outlet channel (532) and the gas channel (521) are arranged partially or completely independently of each other, and wherein the wire outlet channel (532) has a wire outlet.
  4. Handheld laser processing head according to Claim 3 , wherein the laser processing head comprises a detachable pistol barrel, the light outlet, the gas outlet (522) and the wire outlet being located on the same pistol barrel.
  5. Handheld laser processing head according to Claim 3 , wherein the laser processing head comprises several detachable pistol barrels, the light outlet, the gas outlet (522) and the wire outlet being located on different pistol barrels.
  6. Handheld laser processing head according to Claim 3 , wherein the laser processing head comprises several detachable pistol barrels, with any two of the light outlet, gas outlet (522) and wire outlet being located on the same pistol barrel, while the third is located on a different pistol barrel.
  7. Handheld laser processing head according to Claim 3 , wherein the light outlet, the gas outlet (522) and the wire outlet are integrated into the same nozzle (513), wherein any two of the light outlet, the gas outlet (522) and the wire outlet are connected to each other, and wherein the light outlet and the wire outlet are not connected to each other.
  8. Handheld laser processing head according to Claim 7 , wherein the axial length of the light outlet along the transmission direction of the optical path is equal to or less than the length of the gas outlet (522) or the wire outlet.
  9. Handheld laser processing head according to Claim 2 , wherein the nozzle (513) comprises a first channel (70) and a second channel (71) internally; wherein the first channel (70) and the second channel (71) are arranged independently of each other and configured to each blow a straight main gas stream (31) and an auxiliary gas stream (72) onto the machining surface, such that the main gas stream (31) and the auxiliary gas stream (72) precisely cover a specific area on the machining surface, and wherein the projected area covered by the first channel (70) and the second channel (71) on the machining surface is greater than or equal to the area of the specific area.
  10. Handheld laser processing head according to Claim 9 , wherein the first channel (70) is configured to simultaneously emit laser light, and wherein the cross-sectional shape of the outlet of the first channel (70) corresponds exactly to the spot shape, wherein the main gas stream (31) is configured to cover the front end of the spot action point (O); wherein the second channel (70) comprises one or more channels configured to each deliver one or more auxiliary gas streams (72), wherein the auxiliary gas streams (72) are configured to cover at least one specific temperature zone at the front end or rear of the spot action point (O); wherein the main gas stream (31) and the auxiliary gas streams (72) together form an insulating gas film adapted to the specific temperature zone.
  11. Handheld laser processing head according to Claim 2 , wherein the nozzle (513) comprises a nozzle body and a gas flow extension section extending from the end face of the light outlet of the nozzle body, wherein the nozzle body is provided with at least one continuous gas flow channel configured to discharge the auxiliary gas flow (72), the gas flow channel being connected to the gas flow extension section.
  12. Handheld laser processing head according to Claim 2 , wherein the outer contour of the nozzle (513) tapers conically along the light-emitting direction and the circumferential side walls of the end surface of the light outlet of the nozzle (513) are provided with several inclined recess sections (40).
  13. Handheld laser processing head according to Claim 3 , wherein the nozzle (513) has a wire extension The channel comprises a wire exit extension section extending from the end face of the light outlet of the nozzle body, wherein the wire exit extension section can retract and extend along the axial direction to adjust the length so that the inner diameter of the wire exit extension section can be adapted to the welding wire.
  14. Handheld laser processing head according to Claim 3 , comprising a laser emission assembly (33), wherein at least one end of the laser emission assembly (33), the gas inlet end of the gas supply assembly and the wire inlet end of the wire supply assembly is integrated into the base body (1) via a thread seal.
  15. Handheld laser processing head according to Claim 5 , wherein a pistol barrel on which the wire outlet is located is a flexible wire feed tube, wherein at least one resistance reduction device is arranged inside the wire feed tube to reduce the resistance of the welding wire.

Description

TECHNICAL AREA The present application relates to the technical field of hand-held laser welding technology, in particular a hand-held laser processing head and a laser processing device. STATE OF THE ART Currently, handheld laser welding is a laser welding process in which the laser processing head is redesigned for direct manual operation. Compared to conventional platform-based laser welding, handheld laser welding offers greater flexibility and versatility with a wider range of application scenarios. Compared to traditional welding processes such as handheld arc welding and argon arc welding, it offers the unique advantages of laser welding. In conjunction with an oscillating light source and an intelligent design system, handheld laser welding significantly reduces the skill requirements of welders, thereby eliminating the need for complete welding expertise and creating immense market potential. Conventional handheld welding fixtures, however, use two gas path configurations. In the first configuration, the same channel is used for both the gas and laser beam output. Because the laser beam requires oscillation, the inner diameter of the laser channel cannot be too small. Consequently, this configuration consumes significant amounts of shielding gas during operation, resulting in a waste of resources. The second configuration uses an independent pipeline mounted on the outside of the welding fixture. However, this external pipeline reduces the operational flexibility of the entire welding fixture. SUMMARY Various embodiments of the present application provide a hand-held laser processing head and a laser processing device that aim to solve the problems mentioned above. To achieve the aforementioned objectives, the technical solution of the present application provides a handheld laser processing head comprising a base body and a gas supply assembly. The base body has a laser channel for transmitting the laser beam. One end of the laser channel is provided with a light outlet. The gas supply assembly has a gas channel for transmitting the gas, with one end of the gas channel having a gas outlet. At least a portion of the gas supply assembly is integrated into the base body, with the gas channel being arranged independently of the laser channel of the base body. Since at least part of the gas supply assembly is integrated into the base body and the gas channel is arranged independently of the laser channel (i.e., the central axes of the gas channel and the laser channel are not coaxial), integrating the gas channel into the base body results in a compact arrangement of the processing head. Separated from the laser channel, the independent spraying from the gas tube can form an air-insulating protective layer without causing excessive spraying. This ensures the protective effect while simultaneously minimizing gas consumption. Details of one or more embodiments of the present application are set out in the accompanying drawings and the description below. Further features, objectives and advantages of the present application will become apparent from the description, the drawings and the claims. BRIEF DESCRIPTION OF THE DRAWING To clarify the technical solution in the embodiments of the present application, the drawings to be used in the explanation of the embodiments or of the conventional technologies are briefly presented below. Obviously, the drawings described below show only some embodiments of the present application. The person skilled in the art in this field can, provided no creative work is undertaken, derive other drawings from these drawings. 1 shows a schematic diagram of the gas path, the optical path, the wire path and the base body according to one or more embodiments; 2 shows an enlarged detail view of E in 1 ; 3 shows a perspective view of a first pole and a second pole; 4 shows a partially exploded schematic diagram of a laser processing head; 5 shows a detailed assembly view of a wire guide tube and a base body; 6 shows a top view of the gas film, the workpiece machining surface and the spot point O; 7 shows a perspective view of a nozzle according to one or more embodiments; 8 shows a front view of one of the light-emitting end faces of the nozzle; 9 shows another perspective view of the nozzle according to one or more embodiments; 10 shows another front view of the light-emitting end faces of the nozzle; 11 shows another perspective view of the nozzle according to one or more embodiments; 12 shows another front view of the light-emitting end faces of the nozzle; 13 shows another front view of the light-emitting end faces of the nozzle; 14 shows a sectional view of a nozzle according to one or more embodiments; 15 shows another sectional view of a nozzle according to one or more embodiments; 16 shows another sectional view of a nozzle according to one or more embodiments; 17 shows a schematic diagram of the nozzle, the workpiece and the gas flow; 18 shows an enlarged detail view accor