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CN-122007669-A - Automatic optical fiber laser cutting device and cutting method thereof

CN122007669ACN 122007669 ACN122007669 ACN 122007669ACN-122007669-A

Abstract

The invention relates to the technical field of optical fiber laser cutting, and discloses an optical fiber automatic laser cutting device and a cutting method thereof, wherein the device comprises a device frame, a laser cutting head and a smoke treatment assembly; the smoke treatment assembly comprises an adjusting seat ring and a rotating seat ring, the air blowing connector blows air while rotating along with the rotating seat ring, and the air blowing connector encloses together to form a conical protection gas hood so as to cover smoke generated by laser cutting inside the protection gas hood, and the air suction connector is used for sucking smoke in the protection gas hood. The smoke diffusion prevention and collection efficiency is high, the dynamic conical gas hood formed by rotation is used for shielding and cutting smoke in a full range, the irregular diffusion of the smoke is avoided from the root, and the smoke treatment efficiency is greatly improved by matching with synchronous suction of an inner side suction joint. The working condition adaptability is strong, the covering range of the gas cover can be flexibly adjusted, and the smoke treatment requirements of different cutting working conditions are met. The smoke suction precision is high, and the smoke is sucked in a targeted mode in a closed space formed by the gas hood.

Inventors

  • WANG YAO
  • ZHAI SHENGHUI
  • FEI ZHAOYANG

Assignees

  • 吉林省聚源重型机械制造有限公司

Dates

Publication Date
20260512
Application Date
20260410

Claims (10)

  1. 1. An automated laser cleaving apparatus for an optical fiber, comprising: a device frame (11) and a laser cutting head (15); The periphery of the laser cutting head (15) is provided with a smoke treatment assembly; The smoke treatment assembly comprises an adjusting seat ring (21) and a rotating seat ring (22), the adjusting seat ring (21) is coaxially sleeved on the outer side of the laser cutting head (15), and the rotating seat ring (22) is rotatably arranged on the outer ring of the adjusting seat ring (21); At least three groups of driving sliding rails (24) are arranged at the bottom of the rotary seat ring (22) along the circumferential direction, and driving telescopic pieces (27) are rotatably arranged at the bottom of a sliding block of the driving sliding rails (24) through driving rotating shafts (25); The telescopic ends of the driving telescopic pieces (27) are arranged towards the light emitting direction of the laser cutting head (15), the telescopic ends of each driving telescopic piece (27) are fixedly provided with an air blowing connector (28) and an air suction connector (29), and the air suction connectors (29) are positioned on one side, close to the axis of the laser cutting head (15), of the corresponding air blowing connector (28); All the air blowing connectors (28) blow air while rotating along with the rotating seat ring (22) to jointly enclose a conical protective gas hood so as to cover the smoke generated by laser cutting inside the protective gas hood, and all the air suction connectors (29) are used for sucking the smoke in the protective gas hood.
  2. 2. An optical fiber automation laser cutting device according to claim 1, wherein the outer side wall of the laser cutting head (15) is fixed with a mounting seat (213), the adjusting seat ring (21) is coaxially mounted on the outer periphery of the laser cutting head (15) through the mounting seat (213), and the adjusting seat ring (21) can be adjusted in position along the axial direction of the laser cutting head (15) through the mounting seat (213).
  3. 3. An optical fiber automated laser cutting apparatus according to claim 2, wherein a rotary bearing (26) for rotational mounting is provided between the adjusting race (21) and the rotary race (22), and a driver (23) for driving the rotary race (22) is mounted on the adjusting race (21); The output end of the driver (23) is provided with a driving gear, the top surface of the rotary seat ring (22) is provided with a gear ring which is meshed with the driving gear, and the driver (23) drives the rotary seat ring (22) to rotate around the adjusting seat ring (21) through the meshing transmission of the driving gear and the gear ring.
  4. 4. An optical fiber automation laser cutting device according to claim 3, wherein the driving sliding rail (24) is an electric linear sliding rail, a sliding block of the driving sliding rail (24) can reciprocate along a radial direction of the rotary seat ring (22) to adjust a radial distance between the driving telescopic piece (27) and an axis of the laser cutting head (15), and the driving rotating shaft (25) is a damping rotating shaft with a self-locking function and is used for adjusting and locking a pitching angle of the driving telescopic piece (27) relative to the bottom surface of the rotary seat ring (22).
  5. 5. An optical fiber automated laser cutting apparatus according to claim 1, wherein the tail of the driving telescoping member (27) is further provided with a circulation fan (212), and each of the blowing connectors (28) is connected to the circulation fan (212) through a blowing pipe (210); The air suction connectors (29) are connected with the gas-solid separation units through air suction pipelines (211), and the air inlet ends of the circulating fans (212) are communicated with clean air outlets of the gas-solid separation devices to form circulating air paths for blowing and sucking.
  6. 6. The optical fiber automatic laser cutting device according to claim 5, further comprising a smoke concentration detection unit and a control unit, wherein the smoke concentration detection unit is used for detecting the smoke concentration of a laser cutting position in real time, the control unit is electrically connected with control ends of the smoke concentration detection unit, the driving sliding rail (24), the driving telescopic piece (27), the driver (23) and the circulating fan (212) respectively, and the control unit can adjust the covering range of the protective gas cover and the blowing and sucking power according to detection data of the smoke concentration detection unit.
  7. 7. The fiber optic automated laser cutting apparatus of claim 6, wherein the control unit, when adjusting the shielding range of the shielding gas enclosure, specifically performs the following operations: When the increase of the smoke concentration is detected, the control unit controls the sliding block of the driving sliding rail (24) to move in the direction away from the axis of the laser cutting head (15), and simultaneously controls the driving telescopic piece (27) to extend and the camber angle of the driving telescopic piece (27) is increased through the driving rotating shaft (25) so as to enlarge the covering range of the protective gas cover; When the smoke concentration is detected to be reduced, the control unit controls the sliding block of the driving sliding rail (24) to move towards the direction close to the axis of the laser cutting head (15), and simultaneously controls the driving telescopic piece (27) to be shortened and reduces the camber angle of the driving telescopic piece (27) through the driving rotating shaft (25) so as to reduce the covering range of the protective gas cover.
  8. 8. An automated optical fiber laser cutting device according to claim 1, characterized in that the device frame (11) is provided with an adjusting bar (12), a plurality of groups of adjustable workpiece support frames (13) are arranged on the adjusting bar (12), and the workpiece support frames (13) are used for placing workpieces to be cut by the laser generator (14).
  9. 9. An automated optical fiber laser cutting device according to claim 8, wherein the device frame (11) is provided with a three-dimensional moving module and a laser generator (14), and the laser generator (14) and the laser cutting head (15) are mounted on the device frame (11) through the three-dimensional moving module.
  10. 10. An optical fiber automated laser cutting method based on the optical fiber automated laser cutting device of any one of claims 1-9, comprising the steps of: s1, clamping a workpiece, fixing the workpiece to be cut on a processing station of a device frame (11), and adjusting a laser cutting head (15) to a cutting starting position through a three-dimensional moving module; S2, presetting parameters, namely presetting laser cutting parameters according to the material and thickness of a workpiece to be cut, presetting an initial covering range of a protective gas cover, and adjusting the radial position, the pitching angle and the stretching length of a driving telescopic piece (27) to enable the blowing directions of all blowing connectors (28) to be enclosed to form an initial conical protective gas cover; S3, synchronous processing of cutting and smoke is carried out, a laser cutting head (15) is started to execute cutting operation, a driving assembly is started to drive a rotary seat ring (22) to rotate, each blowing connector (28) continuously blows air while rotating along with the rotary seat ring (22) to form a dynamic rotary cone-shaped protection gas hood, and smoke generated by cutting is completely covered in the protection gas hood; S4, the gas hood is adaptively adjusted, in the cutting process, the smoke concentration of the cutting position is detected in real time, and the range of the protective gas hood is adjusted in real time according to the smoke concentration; s5, ending the operation, closing the laser cutting head (15) after the cutting operation is finished, closing the air blowing connector (28) and the air suction connector (29) in a delayed mode, and stopping the machine after the flue gas is completely collected.

Description

Automatic optical fiber laser cutting device and cutting method thereof Technical Field The invention relates to the technical field of optical fiber laser cutting, in particular to an optical fiber automatic laser cutting device and an optical fiber automatic laser cutting method. Background The core of the device is that the laser cutting head is used for realizing accurate cutting of the workpiece, and the device is matched with an automatic driving structure to complete continuous and standardized cutting operation, thereby meeting the requirements on the cutting precision, efficiency and automation degree of the workpiece in industrial production. The invention discloses a laser cutting device of an optical fiber laser cutting system, which has the application number of CN202111304841.8 and comprises an optical fiber cutting table assembly and a laser cutting head, wherein the laser cutting head main body comprises a cutting head main body and a laser emission module, a focusing assembly is arranged between the cutting head main body and the laser emission module and comprises a mounting seat and a focusing cylinder, and a focusing lens is arranged in the focusing cylinder. However, the prior art, in particular this solution, still has the following problems: The prior art focuses on the optimization of focusing stability of the laser cutting head, no relevant structure for flue gas treatment is arranged, and the flue gas generated in the laser cutting process can be scattered irregularly, so that the operation environment is polluted, the physical health of operators is endangered, the concentrated collection and treatment of the flue gas can not be realized, and obvious environmental protection and potential safety hazards exist. The prior art does not design the flue gas prevention and control and treatment structure adapting to different cutting working conditions, when cutting workpieces with different materials and thicknesses, the flue gas generation amount and the diffusion range are different, the flue gas treatment range cannot be adjusted according to the actual working conditions, the suitability is poor, and the flue gas treatment requirement of diversified cutting scenes is difficult to meet. The synchronous cooperation of laser cutting operation and flue gas treatment is not realized in the prior art, and the flue gas generated in the cutting process directly overflows, and is easy to attach on the surface of a workpiece to be cut to influence cutting precision and product quality, and meanwhile, the flue gas can cause interference on the light-emitting path of a laser cutting head to further influence cutting stability. Disclosure of Invention The present invention aims to provide a technical solution to the problems of the prior art set forth in the background art. In order to achieve the above purpose, the invention adopts the following technical scheme: an automatic optical fiber laser cutting device comprises a device frame and a laser cutting head; The periphery of the laser cutting head is provided with a smoke treatment assembly; The smoke treatment assembly comprises an adjusting seat ring and a rotating seat ring, the adjusting seat ring is coaxially sleeved on the outer side of the laser cutting head, and the rotating seat ring is rotatably arranged on the outer ring of the adjusting seat ring; at least three groups of driving sliding rails are arranged at the bottom of the rotary seat ring along the circumferential direction, and driving telescopic pieces are rotatably arranged at the bottom of a sliding block of the driving sliding rails through driving rotating shafts; The telescopic ends of the driving telescopic parts are arranged towards the light emitting direction of the laser cutting head, the telescopic ends of each driving telescopic part are fixedly provided with an air blowing connector and an air suction connector, and the air suction connectors are positioned on one side, close to the axis of the laser cutting head, of the corresponding air blowing connector; All the air blowing connectors blow air while rotating along with the rotating seat ring, and form a conical protective air cover in a surrounding mode so as to cover the smoke generated by laser cutting inside the protective air cover, and all the air suction connectors are used for sucking the smoke in the protective air cover. Preferably, the outer side wall of the laser cutting head is fixed with a mounting seat, the adjusting seat ring is coaxially mounted on the periphery of the laser cutting head through the mounting seat, and the adjusting seat ring can be used for adjusting the position along the axial direction of the laser cutting head through the mounting seat. Preferably, a rotary bearing for rotary installation is arranged between the adjusting seat ring and the rotary seat ring, and a driver for driving the rotary seat ring to drive is arranged on the adjusting seat ring; The output end of th