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CN-121972841-A - Automatic laser cutting equipment and method

CN121972841ACN 121972841 ACN121972841 ACN 121972841ACN-121972841-A

Abstract

The invention relates to the technical field of laser cutting and discloses automatic laser cutting equipment and a method, wherein the automatic laser cutting equipment comprises a laser cutting machine tool, a cutting point clearing assisting mechanism is sleeved outside the tail end of a laser cutting head of the laser cutting machine tool and used for clearing scars and polishing burrs of a cut gap edge, the cutting point clearing assisting mechanism comprises a pressing ring body, a scaring clearing assembly and a transmission assembly, the pressing ring body is of a circular ring structure, the diameter of an inner ring of the pressing ring body is larger than the outer diameter of the laser cutting head, the pressing ring body and the pressing ring body are arranged at the same center, two scaring clearing assemblies which are parallel to each other are rotatably arranged on the lower wall of the pressing ring body, the distance between the two scaring clearing assemblies is larger than 5-10mm of the diameter of a cutting laser beam, each scaring clearing assembly comprises a circular grinding belt and two limiting discs, and the cutting point clearing assisting mechanism is sleeved outside the tail end of the laser cutting head, so that the scaring clearing and the polishing burrs and the laser cutting process are synchronously carried out.

Inventors

  • CHEN MAOSHENG

Assignees

  • 永州市亿达自动化机械有限公司

Dates

Publication Date
20260505
Application Date
20260317

Claims (10)

  1. 1. An automatic laser cutting device is characterized by comprising a laser cutting machine tool (11), wherein a cutting point cleaning assisting mechanism (2) is sleeved outside the tail end of a laser cutting head of the laser cutting machine tool (11) and is used for carrying out scar cleaning and burr polishing treatment on the cut gap edge; The cutting point cleaning assisting mechanism (2) comprises a press ring body (21), a scar cleaning assembly (29) and a transmission assembly, wherein the press ring body (21) is of a circular ring structure, the diameter of the inner ring of the press ring body (21) is larger than the outer diameter of the laser cutting head, and the press ring body are arranged concentrically; The lower wall of the pressure ring body (21) is rotatably provided with two scar cleaning components (29) which are parallel to each other, the distance between the two scar cleaning components (29) is 5-10mm larger than the diameter of a cutting laser beam, each scar cleaning component (29) comprises a ring grinding belt (291) and two limiting discs (294), the ring grinding belt (291) passes through the two limiting discs (294) which are rotatably connected with the pressure ring body (21) and is in a tensioning state, and an alloy ribbon (292) is embedded on the outer wall surface of each ring grinding belt (291); the transmission assembly is in driving connection with the limiting disc (294) and is used for driving the two scar cleaning assemblies (29) to perform circular motion by taking a laser cutting point as a rotation center, keeping the laser irradiation point not to be contacted, driving the two annular grinding belts (291) to be tightly attached to the surface of a cut plate to perform rotary motion synchronously, and performing scar cleaning and burr polishing treatment on the slit edge formed after cutting through friction between the alloy wire belts (292) and the surface of the cut plate.
  2. 2. An automated laser cutting device according to claim 1, wherein the upper wall of the press ring body (21) is fixedly provided with two electric telescopic rods (22), the top ends of the two electric telescopic rods (22) are fixed on the laser cutting head of the laser cutting machine tool (11), the two electric telescopic rods (22) are controlled by the system, the electric telescopic rods (22) are controlled to drive the press ring body (21) to move up and down and tightly press the periphery of the cutting point, and the deformation of the cutting point caused by heating of laser cutting is reduced.
  3. 3. An automated laser cutting device according to claim 2, characterized in that the lower wall of the press ring body (21) is provided with a ring groove (26), two of the ring grinding belts (291) are located in the ring groove (26), and the periphery of the rotation range of the ring grinding belts (291) in the ring groove (26) is provided with induction heating wires (28), the induction heating wires (28) being controlled by the system, preheating and slowing down the temperature around the cutting point.
  4. 4. An automated laser cutting device according to claim 3, wherein the ring groove (26) is further provided with a ring chute (27), the limiting disc (294) slides along the ring chute (27), the upper wall of the limiting disc (294) is fixedly provided with a belt passing block (295), the belt passing block (295) penetrates through the ring chute (27) and is positioned in the press ring body (21), and two ends of each ring grinding belt (291) correspond to one belt passing block (295).
  5. 5. The automatic laser cutting device according to claim 4, wherein the lower wall of the limiting disc (294) is provided with a through-belt hole (296), the annular grinding belt (291) sequentially penetrates through the through-belt hole (296) and the inside of the through-belt block (295), the inner wall of the annular grinding belt (291) is provided with an inner tooth (36), and the through-belt block (295) is rotationally provided with a transmission gear (293) meshed with the inner tooth (36).
  6. 6. An automated laser cutting apparatus according to claim 5, wherein the inner rotation of the press ring body (21) is provided with a driving toothed ring (31), and four belt passing blocks (295) on two sets of the scar cleaning assembly (29) are fixedly connected with the driving toothed ring (31), and teeth of the driving toothed ring (31) are positioned on the upper wall thereof.
  7. 7. An automated laser cutting apparatus according to claim 6, wherein the transmission assembly comprises a first transmission motor assembly (32) and a second transmission motor assembly (34), both the first transmission motor assembly (32) and the second transmission motor assembly (34) being fixed inside the press ring body (21), a rotation part of the first transmission motor assembly (32) being connected with a transmission bevel gear (33), the transmission bevel gear (33) being intermeshed with the transmission toothed ring (31), a rotation part of the second transmission motor assembly (34) being connected with a transmission gear (293).
  8. 8. An automated laser cutting apparatus according to claim 7, wherein the side wall of the press ring body (21) is connected with a protection tube (23) and a suck-back tube (24), the wires of the various devices in the press ring body (21) run along the protection tube (23) until being connected with the system, and the inner wall array of the press ring body (21) is provided with a suck-back hole (25), and smoke and residues are sucked away through the suck-back tube (24) and the suck-back hole (25).
  9. 9. The automated laser cutting apparatus of claim 8, wherein the outer wall of the annular wear strip (291) is provided with a groove (35), and the alloy wire strip (292) is embedded in the groove (35) to form a replaceable structure, and the alloy wire strip (292) is woven from high-temperature alloy wires to form a function of taking away solder with the solder suction strip and a function of polishing the cut seam.
  10. 10. A method of using the automated laser cutting apparatus of claim 9, comprising the steps of: s1, adjusting the height of a pressing ring body (21) through an electric telescopic rod (22) to enable the pressing ring body to be pressed down to the surface of a cut plate; S2, starting laser cutting, driving the scar cleaning assembly (29) to revolve around a cutting point through the transmission assembly, and driving the annular grinding belt (291) to rotate; S3, synchronously cleaning and polishing the slit edges generated by cutting by using an alloy wire belt (292) on the outer wall of the annular polishing belt (291); S4, in the cutting and cleaning process, smoke and residues are sucked through the back suction hole (25) and the back suction pipe (24); And S5, after cutting and cleaning are completed, lifting the compression ring body (21) and removing the device.

Description

Automatic laser cutting equipment and method Technical Field The invention relates to the field of laser cutting, in particular to automatic laser cutting equipment and method. Background The laser cutting technology is widely applied to modern industrial production as a high-efficiency and high-precision processing means, however, in the laser cutting process, due to the influence of various factors such as material characteristics, cutting parameters, thermal effects and the like, adverse phenomena are often generated at the edge of a cut workpiece. In the cutting process, the molten metal material cannot be completely blown off the cutting seam, and is adhered to the cutting edge after being cooled, so that irregular bulges or particles are formed, and the surface quality and subsequent processing of the workpiece are affected. To this end, we propose an automated laser cutting apparatus and method. Disclosure of Invention The invention provides automatic laser cutting equipment and a method, which solve the technical problems that in the related art, in the cutting process, molten metal materials cannot be completely blown away from a cutting seam, and the molten metal materials are attached to the cutting edge after being cooled to form irregular bulges or particles, so that the surface quality of a workpiece is affected and the subsequent processing is carried out. The invention provides automatic laser cutting equipment, which comprises a laser cutting machine tool, a cutting point cleaning assisting mechanism and a cutting point cleaning mechanism, wherein the cutting point cleaning assisting mechanism is sleeved outside the tail end of a laser cutting head of the laser cutting machine tool and is used for carrying out scar cleaning and burr polishing treatment on the cut gap edge; the cutting point cleaning assisting mechanism comprises a pressing ring body, a scar cleaning assembly and a transmission assembly, wherein the pressing ring body is of a circular ring structure, the diameter of the inner ring of the pressing ring body is larger than the outer diameter of the laser cutting head, and the pressing ring body and the scar cleaning assembly are arranged concentrically; The lower wall of the press ring body is rotatably provided with two scar cleaning components which are parallel to each other, the distance between the two scar cleaning components is 5-10mm larger than the diameter of a cutting laser beam, each scar cleaning component comprises a ring grinding belt and two limiting plates, the ring grinding belt penetrates through the two limiting plates which are rotatably connected with the press ring body and is in a tensioning state, and alloy silk belts are embedded on the outer wall surface of each ring grinding belt; The transmission assembly is connected with the limiting disc drive and is used for driving the two scar cleaning assemblies to conduct circular motion by taking a laser cutting point as a rotation center, keeping the laser irradiation point not to be contacted, synchronously driving the two annular grinding belts to be tightly attached to the surface of a cut plate to conduct rotary motion, and conducting scar cleaning and burr polishing treatment on the gap edge formed after cutting through friction between the alloy wire belts and the surface of the cut plate. Further, the upper wall of the pressing ring body is fixedly provided with two electric telescopic rods, the top ends of the two electric telescopic rods are fixed on a laser cutting head of a laser cutting machine tool, the two electric telescopic rods are controlled by a system to control the electric telescopic rods to drive the pressing ring body to move up and down and tightly press the periphery of a cutting point, and the deformation of the cutting point caused by heating of laser cutting is reduced. Further, the lower wall of the compression ring body is provided with a ring groove, two ring grinding belts are positioned in the ring groove, the periphery of the rotation range of the ring grinding belts in the ring groove is provided with an induction heating wire, and the induction heating wire is controlled by the system and is preheated and slows down the temperature around the cutting point. Further, the annular groove is further provided with an annular chute, the limiting disc slides and rotates along the annular chute, the upper wall of the limiting disc is fixedly provided with a belt passing block, the belt passing block penetrates through the annular chute to be positioned in the press ring body, and two ends of each annular grinding belt correspond to one belt passing block. Further, the lower wall of the limiting disc is provided with a through belt hole, the annular grinding belt sequentially penetrates through the through belt hole and the inside of the through belt block, the inner wall of the annular grinding belt is provided with inner teeth, and the through belt block is rotationally provi