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CN-122007678-A - Automatic obstacle avoidance laser cutting head equipment

CN122007678ACN 122007678 ACN122007678 ACN 122007678ACN-122007678-A

Abstract

The invention discloses automatic obstacle avoidance laser cutting head equipment, which relates to the technical field of laser cutting equipment and comprises a support, a laser cutting machine head, an annular structure light source, a structure light camera and a main controller, wherein the laser cutting machine head is connected with the support in a sliding mode and driven to lift by a driving mechanism, the annular structure light source is sleeved on the outer side of a lifting seat and fixedly connected with the support, the annular structure light source comprises a light source and grid pieces, the grid pieces comprise at least three layers of transparent conductive films, grid plates are arranged between two adjacent layers of transparent conductive films, a plurality of strip-shaped holes are uniformly distributed on the grid plates along the circumferential direction of the grid plates, the positions of the strip-shaped holes on the grid plates correspond to each other, light transmission gaps are formed, the strip-shaped holes are sequentially filled with polymer liquid crystal fillers in a staggered mode from top to bottom, and the structure light camera is used for collecting structure light information. The automatic obstacle avoidance laser cutting head equipment can eliminate structural light detection blind areas and improve obstacle avoidance effects.

Inventors

  • Xing Guoen
  • YANG JUN
  • XU ZHIWEI
  • WU XIAOJIE
  • XIA KEJIAN

Assignees

  • 开封奔腾智能科技有限公司

Dates

Publication Date
20260512
Application Date
20250731

Claims (7)

  1. 1. An automatic obstacle avoidance laser cutting head device, comprising: A bracket (2); The laser cutting machine head (5) is connected with the bracket (2) in a sliding way and driven by the driving mechanism to lift; The annular structure light source (7), annular structure light source (7) cover is established in the outside of lifting seat (4) and with support (2) fixed connection, annular structure light source (7) include light source (9) and grid piece (10), grid piece (10) are equipped with grid board (18) including at least three-layer transparent conductive film (14) between adjacent two-layer transparent conductive film (14), evenly distributed along its circumferencial direction on grid board (18) a plurality of bar hole (20), a plurality of bar hole (20) on grid board (18) position is corresponding to form the printing opacity seam, a plurality of bar hole (20) dislocation in proper order are filled with polymer liquid crystal filler (19) top-down; -a structured light camera (6), the structured light camera (6) being for collecting structured light information; and the main controller is used for generating an obstacle distribution map of the detection area in real time based on the structured light information acquired by the structured light camera (6), and generating a lifting control instruction when the obstacle height is identified to exceed a preset safety threshold.
  2. 2. The automatic obstacle avoidance laser cutting head device according to claim 1, wherein the transparent conductive film (14) comprises three layers, namely a transparent conductive upper film (11), a second transparent conductive middle film (12) and a first transparent conductive lower film (13), wherein the transparent conductive upper film (11) is connected with a power negative electrode of the first transparent conductive lower film (13), and the second transparent conductive middle film (12) is connected with a power positive electrode.
  3. 3. An automatic obstacle avoidance laser cutting head device according to claim 1 wherein the grating sheet (10) further comprises two layers of transparent glass (15), transparent inner films (16) are arranged on adjacent sides of the transparent glass (15), and the transparent conductive films (14) and the grating plates (18) are positioned between the two layers of transparent inner films (16).
  4. 4. An automatic obstacle avoidance laser cutting head apparatus as claimed in claim 1 characterised in that the strip-shaped apertures (20) not filled with the polymeric liquid crystal filler (19) are filled with transparent filler (17).
  5. 5. An automatic obstacle avoidance laser cutting head arrangement as claimed in claim 1 wherein the ring structured light source (7) further comprises a lens (8), the lens (8) being fixedly connected to the side of the grid plate (10) remote from the light source (9).
  6. 6. The automatic obstacle avoidance laser cutting head device according to claim 1, wherein a plurality of the structured light cameras (6) are arranged in an array with the laser cutting head (5) as an axis.
  7. 7. The automatic obstacle avoidance laser cutting head device according to claim 1, wherein the support (2) is slidably connected with a lifting seat (4) through a sliding rail, the laser cutting head (5) is fixedly connected with the lifting seat (4), a screw rod (3) is connected with the middle of the lifting seat (4) in a threaded manner, and the screw rod (3) is driven to rotate by a servo motor (1).

Description

Automatic obstacle avoidance laser cutting head equipment Technical Field The invention relates to the technical field of laser cutting equipment, in particular to automatic obstacle avoidance laser cutting head equipment. Background In laser cutting equipment, the structured light obstacle avoidance technology is an obstacle avoidance mode of safe operation of a laser cutting head, and the real-time detection and avoidance of obstacles in a cutting path are realized by projecting structured light and identifying reflected signals. However, the core component grid structure of the existing structured light obstacle avoidance laser cutting head has obvious technical limitations, and the improvement of obstacle avoidance performance is restricted: The traditional structure light lamp is limited by material characteristics and a processing technology, the density of the grid light transmission slits is difficult to promote, light can be diffused and widened after passing through the light transmission slits, adjacent structure light can interfere with each other due to overlapping of diffusion ranges if the light transmission slits are too dense, recognition precision is directly damaged, a detection blind area is easily formed in a light uncovered area between two adjacent grid light transmission slits if a gap between the grid light transmission slits is too large, obstacle information on a cutting path cannot be comprehensively captured, obstacle avoidance response lag or misjudgment is finally caused, and safety and processing efficiency of laser cutting are seriously threatened. Therefore, it is necessary to provide an automatic obstacle avoidance laser cutting head device to solve the above problems. Disclosure of Invention (One) solving the technical problems The invention aims to provide automatic obstacle avoidance laser cutting head equipment so as to solve the problem that the existing structured light obstacle avoidance technology provided in the background technology has a coverage blind area. (II) technical scheme In order to achieve the purpose, the invention is realized by the following technical scheme that the automatic obstacle avoidance laser cutting head device comprises: A bracket; The laser cutting machine head is connected with the bracket in a sliding way and driven by the driving mechanism to lift; The annular structure light source is sleeved on the outer side of the lifting seat and fixedly connected with the support, the annular structure light source comprises a light source and a grid plate, the grid plate comprises at least three layers of transparent conductive films, a grid plate is arranged between two adjacent layers of transparent conductive films, a plurality of strip-shaped holes are uniformly distributed on the grid plate along the circumferential direction of the grid plate, the positions of the strip-shaped holes on the grid plate correspond to each other, light transmission gaps are formed, and the strip-shaped holes are sequentially filled with polymer liquid crystal filler in a staggered manner from top to bottom; The structure light camera is used for collecting structure light information; and the main controller is used for generating an obstacle distribution map of the detection area in real time based on the structured light information acquired by the structured light camera, and generating a lifting control instruction when the obstacle height is identified to exceed a preset safety threshold. Preferably, the transparent conductive film comprises three layers, including a transparent conductive upper film, a second transparent conductive middle film and a first transparent conductive lower film, wherein the transparent conductive upper film is connected with a power supply cathode of the first transparent conductive lower film, and the second transparent conductive middle film is connected with a power supply anode. Preferably, the grid plate further comprises two layers of transparent glass, transparent inner films are arranged on two adjacent sides of the transparent glass, and the transparent conductive films and the grid plates are located between the two layers of transparent inner films. Preferably, the bar-shaped holes not filled with the polymer liquid crystal filler are filled with a transparent filler. Preferably, the annular structure light source further comprises a lens, and the lens is fixedly connected to one side of the grid plate far away from the light source. Preferably, the plurality of the structured light cameras are arranged in an array by taking the laser cutting machine head as an axis. Preferably, the support is provided with a lifting seat in a sliding manner through a sliding rail, the laser cutting machine head is fixedly connected with the lifting seat, the middle of the lifting seat is in threaded connection with a screw rod, and the screw rod is driven to rotate by a servo motor. (III) beneficial effects Compared with the prior