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CN-122007663-A - Automatic cutting device for machining

CN122007663ACN 122007663 ACN122007663 ACN 122007663ACN-122007663-A

Abstract

The invention relates to the technical field of metal cutting, and discloses an automatic cutting device for machining, which comprises a mechanical arm, wherein a laser cutting machine is arranged at a moving end of the mechanical arm, a position changing machine is arranged at the side part of the mechanical arm, a workpiece platform is detachably arranged at a moving end of the position changing machine, a clamping mechanism for clamping a pipe fitting is movably arranged on the workpiece platform, the clamping mechanism comprises a clamping plate and a fixed bolt, a first baffle plate for blocking bunched spark of a pipe orifice of the pipe fitting is slidably arranged on the clamping plate, the driving motor drives a central gear to rotate through a driving belt, a toothed slide plate I and a toothed slide plate II are synchronously driven to reversely slide, the alternating shielding function of the first baffle plate and the second baffle plate is realized, steering racks are symmetrically arranged, the moving directions of two travelling shafts are opposite, the two heat dissipation gears are enabled to obtain the same steering angular speed, the first baffle plate and the second baffle plate are ensured to always maintain a parallel state in the rotating process, and when the first baffle plate meets the second baffle plate, the first baffle plate and the second baffle plate meet, the first baffle plate and the second baffle plate are automatically rotated from the transverse direction to the vertical direction, and the risk of mechanical collision is avoided.

Inventors

  • HAN CHENGLIN
  • WANG TIANJU
  • YE CHANG

Assignees

  • 沈阳理工大学

Dates

Publication Date
20260512
Application Date
20260401

Claims (10)

  1. 1. The utility model provides an automatic cutting device for machining, includes arm (101) action end is provided with laser cutting machine (102), and arm (101) lateral part is provided with machine (103) that shifts, and the movable end demountable installation of machine (103) that shifts has work piece platform (104), a serial communication port, movable mounting has the fixture that is used for centre gripping pipe fitting on work piece platform (104), and fixture includes grip block (201) and gim peg (202), and the slip is provided with on grip block (201) and is used for blocking the baffle (203) of pipe fitting mouth of pipe beam form spark.
  2. 2. The automatic cutting device for machining is characterized in that two round holes are formed in the end portion of the clamping plate (201), the fixing bolt (202) penetrates through the round holes, the fixing bolt (202) is a bolt with a threaded section at the bottom, a threaded hole is formed in the surface of the workpiece platform (104), and the fixing bolt (202) is in threaded connection with the workpiece platform (104).
  3. 3. The automatic cutting device for machining is characterized in that a second baffle plate (204) is arranged on the clamping plate (201) in a sliding mode, an alternating mechanism is further arranged on the clamping plate (201) and used for alternately using the first baffle plate (203) and the second baffle plate (204), the alternating mechanism comprises a driving motor (205) fixedly arranged on the upper surface of the clamping plate (201), a first toothed slide plate (206) and a second toothed slide plate (207) are arranged on two sides of the clamping plate (201) in a sliding mode, a central gear (208) is rotatably arranged in the middle of the clamping plate (201), the first toothed slide plate (206) and the second toothed slide plate (207) are in meshed connection with the central gear (208), and a transmission belt (209) is sleeved on a rotating shaft of the central gear (208) and an output shaft of the driving motor (205) together.
  4. 4. An automatic cutting device for machining according to claim 3, wherein the first baffle (203) is connected to the bottom of the first toothed slide plate (206), and the second baffle (204) is connected to the bottom of the second toothed slide plate (207).
  5. 5. The automatic cutting device for machining according to claim 3, wherein the first toothed slide plate (206) and the second toothed slide plate (207) are provided with sliding guide rails (301), sliding handles (302) are slidably mounted in the sliding guide rails (301), a traveling shaft (303) is rotatably mounted at the bottoms of the sliding handles (302), and sliding grooves (304) for guiding the traveling shaft (303) to move are formed in the clamping plates (201).
  6. 6. The automatic cutting device for machining according to claim 5, wherein the sliding groove (304) is provided as a Y-shaped sliding groove, the sliding groove (304) comprises a working straight groove (3041) and a bifurcation groove (3042), the working straight groove (3041) is connected to the center of the bifurcation groove (3042), the traveling shaft (303) is located at the bifurcation end of the bifurcation groove (3042) and is far away from the pipe orifice, and the traveling shaft (303) is located in the working straight groove (3041) and is close to the pipe orifice.
  7. 7. The automatic cutting device for machining according to claim 5, wherein the top of the traveling shaft (303) is sleeved with a torsion spring (305), one end of the torsion spring (305) is clamped with the traveling shaft (303), and the other end of the torsion spring (305) is clamped with the sliding handle (302).
  8. 8. The automatic cutting device for machining according to claim 5, wherein the traveling shaft (303) is coaxially and fixedly provided with a heat dissipation gear (306), the bottom of the clamping plate (201) is symmetrically provided with a steering rack (307), and the heat dissipation gear (306) is intermittently meshed with the steering rack (307).
  9. 9. The automatic cutting device for machining is characterized in that a nutation knocking mechanism is arranged on the travelling shaft (303) and used for processing spark residues remained on the first baffle plate (203) and the second baffle plate (204), the nutation knocking mechanism comprises a nutation wheel (401) fixedly arranged on the travelling shaft (303), and a reciprocating sliding cylinder (402) sleeved on the outer side of the nutation wheel (401), two clamping blocks (403) are fixedly arranged on the inner wall of the reciprocating sliding cylinder (402), the nutation wheel (401) is in sliding clamping with the two clamping blocks (403), knocking arms (404) are rotatably arranged on the back sides of the first baffle plate (203) and the second baffle plate (204), supports (405) are fixedly arranged in the middle of the two knocking arms (404), and the other ends of the two supports (405) are hinged with the first baffle plate (203) and the second baffle plate (204) respectively.
  10. 10. The automatic cutting device for machining is characterized in that the top of the knocking arm (404) is abutted against the bottom of the reciprocating slide cylinder (402), tension springs (406) are clamped at the middle parts of the two knocking arms (404), and the other ends of the two tension springs (406) are respectively clamped with the back sides of the first baffle plate (203) and the second baffle plate (204).

Description

Automatic cutting device for machining Technical Field The invention relates to the technical field of metal cutting, in particular to an automatic cutting device for machining. Background In the related art, in the metal laser cutting process, high-temperature molten metal forms a spark-spraying phenomenon of radial diffusion under the combined action of airflow disturbance and microscopic unevenness on the surface of a material. Although the spark has a certain danger, the energy is dispersed, and the impact force per unit area is relatively controllable. However, when laser cutting is applied to metal pipes, its structural characteristics may induce a more severe spark-jet pattern in that the orifice or the restricted flow passage formed by the machined holes may produce a nozzle-like focusing effect, causing the molten metal and the high temperature gas to be accelerated and focused to form a high velocity, high density beam-like jet. The beam-shaped jet spark has obviously enhanced impact force per unit area, and the destructive power of the beam-shaped jet spark is far higher than that of a common radial spark, and the beam-shaped jet spark is particularly characterized by stronger penetrating power and longer range, and is extremely easy to ignite peripheral combustible materials or cause burn of operators. In order to solve the harm of the beam-shaped spraying spark, the prior countermeasures commonly use a refractory fiber felt to directly block the spark spraying path and fix the spark spraying path at two ends of a pipeline. However, the fire-resistant fiber mat has extremely low rigidity and cannot be self-supported, mechanical fixation is required to be carried out by depending on an anchoring structure, and particularly, when the special-shaped metal pipeline is cut in multiple directions, the operation is complicated and time-consuming, and the metal anchoring piece is easy to be sintered and adhered with the fiber mat at high temperature, so that the follow-up disassembly is difficult, therefore, the automatic cutting device for machining is provided. Disclosure of Invention The invention provides an automatic cutting device for machining, which can solve the problems that the fire-resistant fiber felt is used for directly blocking a spark spraying path in the background technology, but the fire-resistant fiber felt is extremely low in rigidity and cannot be self-supported, and the fire-resistant fiber felt is required to be mechanically fixed by depending on an anchoring structure, particularly when a special-shaped metal pipeline is cut in multiple directions, the operation is complicated and time-consuming, and a metal anchoring piece is easy to be sintered and adhered with the fiber felt at a high temperature, so that the subsequent disassembly is difficult. In order to achieve the above-mentioned purpose, this scheme provides an automatic cutting device for machining, including the arm action end is provided with the laser cutting machine, and the arm lateral part is provided with the machine of shifting, and the movable end demountable installation of machine of shifting has the work piece platform, its characterized in that, movable mounting has the fixture that is used for centre gripping pipe fitting on the work piece platform, and fixture includes grip block and gim peg, slides on the grip block and is provided with the baffle that is used for blocking the pipe fitting mouth of pipe beam form spark. Optionally, two round holes are formed in the end portion of the clamping plate, the fixing bolt penetrates through the round holes, the fixing bolt is arranged to be a bolt with a threaded section at the bottom, the surface of the workpiece platform is provided with a threaded hole, and the fixing bolt is in threaded connection with the workpiece platform. The clamping plate is provided with a first baffle plate and a second baffle plate, the first baffle plate and the second baffle plate are arranged on the clamping plate in a sliding mode, the first baffle plate and the second baffle plate are alternately used, the second baffle plate and the second baffle plate are alternately arranged on the clamping plate, the second baffle plate and the first baffle plate are arranged on the clamping plate in a sliding mode, the first baffle plate and the second baffle plate are fixedly arranged on the upper surface of the clamping plate, a first toothed sliding plate and a second toothed sliding plate are arranged on two sides of the clamping plate in a sliding mode, a central gear is rotatably arranged in the middle of the clamping plate, the first toothed sliding plate and the second toothed sliding plate are in meshed connection with the central gear, and a rotating shaft of the central gear and an output shaft of the driving motor are sleeved with a transmission belt jointly. Optionally, the first baffle is connected to the bottom of the toothed slide plate I, and the second baffle is connec