A laser cutting machine

Abstract

The present invention belongs to the technical field of laser cutting machines, and in particular to a laser cutting machine. The following scheme is proposed, including a mounting frame, both ends of the mounting frame are provided with rotating holes, a fixed ring is rotatably connected between the two rotating holes, the outer wall of the fixed ring is connected to a driving mechanism, the driving mechanism drives the fixed ring to deflect back and forth, and the fixed ring deflects in a single direction at an angle greater than one hundred and eighty degrees, a laser cutter is arranged on the top of the fixed ring, and a guard plate is fixed on the inner wall of the fixed ring corresponding to the position of the laser cutter. The present invention can enable the laser cutter to perform cutting operations at various positions in the circumferential direction through the provided fixed ring and laser cutter, which can effectively avoid the influence of excessive volume or weight, and can ensure that various positions of the circumference of the steel pipe are in close contact with the laser cutter for cutting operations, thereby ensuring the completeness of the cutting and avoiding the adhesion of the cut seams that affects the cutting effect.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting machines, and in particular to a laser cutting machine. Background Art

[0002] Laser cutting uses a high-energy-density laser beam to heat the workpiece and vaporize the material to achieve the cutting operation.

[0003] With reference to the Chinese patent with patent announcement number CN221247363U, a steel pipe laser cutting machine is disclosed, which includes a machine platform, a laser cutter, a rotating assembly and a feeding assembly. The laser cutter is arranged on the machine platform. The rotating assembly includes a rotating drive member, a rotating seat and a clamping mechanism. The rotating seat is rotatably arranged on one end of the machine platform close to the laser cutter, and the rotating seat is located below the laser cutter. A through hole for passing the steel pipe is opened on the rotating seat. The rotating drive member is arranged on the machine platform, and the rotating drive member is connected to the rotating seat. The clamping mechanism is arranged on the rotating seat, and the clamping mechanism is aligned with the through hole. The feeding assembly includes a feeding drive member, a feeding rack and a clamping member. The feeding drive member is arranged on the machine platform, the feeding rack is horizontally slidably arranged on the machine platform, and the feeding rack is connected to the feeding drive member. The clamping member is arranged on the feeding rack, and the clamping member and the through hole are arranged coaxially. The feeding drive member is used to drive the clamping member to approach or move away from the through hole.

[0004] The above patent realizes circular cutting by rotating the steel pipe. However, during the laser cutting process of some large and heavy steel pipes, the load of the rotating pipe body on the driving mechanism will be too large, and the rotation will easily deviate due to the large volume and weight of the steel pipe, which will affect the cutting effect. Summary of the invention

[0005] Based on the technical problems of the background technology, the present invention proposes a laser cutting machine.

[0006] A laser cutting machine proposed in the present invention comprises a mounting frame, both ends of the mounting frame are provided with rotating holes, a fixing ring is rotatably connected between the two rotating holes, the outer wall of the fixing ring is connected with a driving mechanism, the driving mechanism drives the fixing ring to reciprocate, and the deflection angle of the fixing ring in a single direction is greater than one hundred and eighty degrees, a laser cutter is arranged on the top of the fixing ring, a guard plate is fixed on the inner wall of the fixing ring at a position corresponding to the laser cutter, and the fixing ring is made of heat-conducting material; both ends of the mounting frame are provided with a base, and a lifting platform is arranged above the base.

[0007] Preferably, the inner wall of the fixing ring is flush with the inner wall of the rotating hole, a limiting ring is fixed at a position of the inner wall of the mounting frame corresponding to the fixing ring, and the inner wall of the limiting ring is in sliding contact with the outer wall of the fixing ring.

[0008] Preferably, a storage box is fixed to the bottom of both ends of the mounting frame, the top end of the storage box is opened, and the top end of the storage box is flush with the bottom end of the rotating hole.

[0009] Preferably, a mounting frame is fixed on the fixing ring at a position corresponding to the laser cutter, an electric guide rail is fixed to a side wall of the mounting frame, the electric guide rail extends in a radial direction of the fixing ring, and the laser cutter is connected to the electric guide rail.

[0010] Preferably, a heat insulating ring is fixed to the outer wall of the mounting frame, a ring tooth is fixed to one end of the inner wall of the heat insulating ring, the driving mechanism is provided with a driving motor fixed to the outer wall of the mounting frame, and a gear meshing with the ring tooth is fixed to the output shaft of the driving motor.

[0011] Preferably, both ends of the circumferential outer wall of the heat insulation ring are fixed with annular partitions, and both the partitions and the heat insulation ring are made of heat insulation materials.

[0012] Preferably, the width of the heat-insulating ring is smaller than the width of the fixing ring, and the top and both sides of the mounting frame are provided with openings.

[0013] Preferably, a fixing plate is installed at the middle position of both sides of the mounting frame, a fixing hole is opened at one end of the fixing plate away from the ring gear, an inner wall of the fixing hole is rotatably connected to a shaft, and blades distributed in a ring array are fixed to the outer wall of the shaft.

[0014] Preferably, the blades extend horizontally toward the fixing ring to the inner side of the heat insulation ring, and the width of the blades gradually increases toward the fixing ring.

[0015] Preferably, collision rods distributed in a ring array are fixed to one end of the circumferential inner wall of the insulation ring away from the ring teeth, the collision rods extend in the radial direction of the insulation ring, and one end of the blade away from the fixed plate contacts the collision rods.

[0016] The beneficial effects of the present invention are:

[0017] 1. In the present invention, the fixed ring and the laser cutter are provided to enable the laser cutter to perform cutting operations at various positions in the circumferential direction, which can effectively avoid the influence of the excessive volume or weight of the steel pipe, and can ensure that each position of the circumference of the steel pipe is in close contact with the laser cutter for cutting operations, thereby ensuring the completeness of the cutting and avoiding the adhesion of the cut seam to affect the cutting operation effect.

[0018] 2. In the present invention, the heat dissipation and cooling effect of the laser cutter during long-term operation is improved by reciprocating deflection.

[0019] 3. In the present invention, the reciprocating deflection of the fixed ring allows the debris or slag to move outward and detach from the fixed ring, thereby preventing the debris or slag from adhering to the surface of the steel pipe under the influence of the laser, thereby further improving the cutting effect of the steel pipe.

[0020] 4. In the present invention, the support of the fixing ring by the limiting ring and the meshing of the gear and the ring teeth improve the stability of the reciprocating rotation of the fixing ring, the mounting frame and the insulation ring, and the cable is allowed to move within the area surrounded by the insulation ring and the two partitions, thereby ensuring the effectiveness of the laser cutter during its rotation.

[0021] 5. In the present invention, the collision rod is spaced to collide with the edge of the blade, causing mechanical vibration inside the fixed ring, so that the debris or slag on the inner wall falls off and moves to the bottom, and the shaft and the blade are rotated in a circle along the horizontal axis perpendicular to the fixed ring at the end position of the insulation ring, thereby improving the surrounding heat dissipation and cooling effect during the laser cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a laser cutting machine proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of a mounting frame for a laser cutting machine proposed by the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of a fixed ring of a laser cutting machine proposed by the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of a fixing ring and a heat insulation ring of a laser cutting machine proposed by the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of a mounting frame for a laser cutting machine proposed by the present invention;

[0027] Figure 6 A schematic diagram of a hole-turning structure of a laser cutting machine proposed by the present invention;

[0028] Figure 7 This is a schematic diagram of the position structure of a storage box of a laser cutting machine proposed by the present invention;

[0029] Figure 8 A schematic diagram of the collision rod distribution structure of a laser cutting machine proposed by the present invention;

[0030] Fig. 9 This is a schematic diagram of the shaft and blade structure of a laser cutting machine proposed in the present invention.

[0031] In the figure: 1 mounting frame, 101 rotating hole, 2 fixing ring, 3 laser cutter, 301 laser cutting head, 4 guard plate, 5 base, 6 lifting table, 7 mounting frame, 8 electric guide rail, 9 limit ring, 10 insulation ring, 11 ring gear, 12 driving motor, 13 gear, 14 partition, 15 storage box, 16 fixing plate, 17 shaft rod, 18 blade, 19 collision rod. DETAILED DESCRIPTION

[0032] Example 1: Reference Figure 1-Figure 7 A laser cutting machine comprises a mounting frame 1, both ends of the mounting frame 1 are provided with rotating holes 101, a fixing ring 2 is rotatably connected between the two rotating holes 101, the outer wall of the fixing ring 2 is connected with a driving mechanism, the driving mechanism drives the fixing ring 2 to deflect back and forth, and the fixing ring 2 deflects in a single direction at an angle greater than 180 degrees, a laser cutter 3 is arranged on the top of the fixing ring 2, a laser cutting head 301 is arranged on the laser cutter 3 toward the axis position of the fixing ring 2, a guard plate 4 is fixed on the inner wall of the fixing ring 2 at a position corresponding to the laser cutter 3, and the fixing ring 2 is made of heat-conducting material; both ends of the mounting frame 1 are provided with a base 5, a lifting table 6 is arranged above the base 5, and a support 301 which is connected to the lifting table 3 is installed in the base 5 6 is connected. When in use, the large steel pipe to be cut is placed through the fixing ring 2, and the steel pipe is supported and placed by adjusting the lifting table 6, and the steel pipe is placed at a position close to the central area of ​​the fixing ring 2, and the steel pipe is stably placed on the lifting table 6 by a clamping mechanism commonly used in the prior art; when performing the cutting operation, the laser cutter 3 is started to cut the corresponding position of the steel pipe, and the guard plate 4 at the axially symmetrical position is used to avoid damage to the fixing ring 2. At the same time, the driving mechanism is used to make the fixing ring 2 reciprocate in the circumferential direction, and the deflection angle of the fixing ring 2 in a single direction is greater than 180 degrees, so that the laser cutter 3 can perform cutting operations at various positions in the circumferential direction;

[0033] Therefore, during the cutting process, compared with the method of directly rotating the steel pipe for cutting, this cutting operation means and method can effectively avoid the influence of the steel pipe being too large or too heavy, that is, the steel pipe will not be rotated and deviated due to the large volume or weight of the steel pipe, thereby affecting the cutting effect; compared with the method of cutting by horizontally moving the laser cutter 3 in the prior art, this cutting operation can ensure that each position of the circumference of the steel pipe is in close contact with the laser cutter 3 for cutting, thereby ensuring the completeness of the cutting and avoiding the cutting seam from sticking and affecting the cutting effect;

[0034] In addition, by the way that the fixed ring 2 leads the laser cutter 3 to reciprocate and deflect, the position of the laser cutter 3 can also be reciprocated and deflected to alternately be in a moving state, so as to avoid the laser cutter always being in a fixed position, which causes the heat generated by its work to be concentrated and difficult to dissipate, thereby improving the heat dissipation and cooling effect of the laser cutter during long-term operation in the form of reciprocating deflection;

[0035] In addition, the cutting operation is performed at the position of the fixed ring 2, so that the debris or slag generated by the cutting falls on the inner wall of the fixed ring 2, and the debris or slag is moved outward and separated from the fixed ring 2 through the reciprocating deflection mode of the fixed ring 2. Compared with the debris or slag of laser cutting in the prior art, which is always at the bottom of the steel pipe and easily adheres to the surface of the steel pipe under the influence of the laser, this method can send the debris or slag away from the steel pipe cutting position, thereby further improving the cutting effect of the steel pipe; and in order to ensure the completeness of the cutting during the cutting operation, the rotation rate of the fixed ring 2 will not be too large, that is, a large amount of debris or slag will always be in the bottom area of ​​the fixed ring 2 under the influence of gravity and move outward, and will not be thrown away from the top, which is convenient for collecting the debris or slag.

[0036] In the present invention, reference is made to Figure 1-Figure 7 The inner wall of the fixing ring 2 is flush with the inner wall of the rotating hole 101. A limiting ring 9 is fixed at the position corresponding to the inner wall of the mounting frame 1 and the fixing ring 2. The inner diameter of the limiting ring 9 is larger than the inner diameter of the rotating hole 101. The inner wall of the limiting ring 9 is in sliding contact with the outer wall of the fixing ring 2. A storage box 15 is fixed to the bottom of both ends of the mounting frame 1. The top of the storage box 15 is open. The top of the storage box 15 is flush with the bottom of the rotating hole 101. The steel pipe is supported by the lifting table 6 so that the steel pipe is close to the axis of the fixing ring 2. At this time, the lifting table 6 will be above the bottom of the rotating hole 101 and below the axis of the rotating hole 101, while the bottom of the rotating hole 101 and the corresponding bottom opening of the fixing ring 2 will be below the lifting table 6. In addition, the rotation speed of the fixing ring 2 will not be too fast, and a large amount of debris and slag will remain at the bottom of the fixing ring 2 and fall directly from both ends into the storage box 15 as it rotates, so as to facilitate the collection of debris and slag and avoid the debris and slag always remaining and affecting the cutting operation.

[0037] In the present invention, reference is made to Figure 1-Figure 7 A through groove is opened on the fixed ring 2 at a position corresponding to the laser cutter 3, a mounting frame 7 is fixed on the inner wall of the through groove, an electric guide rail 8 is fixed on the side wall of the mounting frame 7, the electric guide rail 8 extends in the radial direction of the fixed ring 2, the laser cutter 3 is connected to the electric guide rail 8, the laser cutter 3 slides in the mounting frame 7, and the electric guide rail 8 can be used to adjust the position of the laser cutter 3 in the radial direction of the fixed ring 2, so as to perform adjustable cutting according to the actual radius of the steel pipe, so as to ensure the effectiveness and cutting effect of cutting various types of steel pipes.

[0038] In the present invention, reference is made to Figure 1-Figure 7 A heat insulating ring 10 is fixed to the outer wall of the mounting frame 7, and the inner diameter of the heat insulating ring 10 is larger than the outer diameter of the fixed ring 2. A ring gear 11 is fixed to one end of the inner wall of the heat insulating ring 10. The driving mechanism is provided with a driving motor 12 fixed to the outer wall of the mounting frame 1, and the output shaft of the driving motor 12 extends into the mounting frame 1 to the position between the fixed ring 2 and the heat insulating ring 10. The output shaft of the driving motor 12 is fixed with a gear 13 meshing with the ring gear 11, so that the fixed ring 2, the mounting frame 7 and the heat insulating ring 10 are fixedly connected in sequence, so that the heat insulating ring 10, the mounting frame 7 and the fixed ring 2 can be reciprocated in a circle by the driving motor 12, and the support of the fixed ring 2 by the limit ring 9 and the meshing of the gear 13 with the ring gear 11 can improve the stability of the reciprocating rotation of the fixed ring 2, the mounting frame 7 and the heat insulating ring 10, thereby improving the stability of the circumferential cutting.

[0039] In the present invention, reference is made to Figure 1-Figure 7 , both ends of the circumferential outer wall of the insulation ring 10 are fixed with an annular partition 14, and the partition 14 and the insulation ring 10 are both made of insulation materials. The laser cutter 3 connection cable in the installation frame 7 is led out from the top. When the installation frame 7 carries the laser cutter 3 for circular reciprocating deflection, the cable moves in the area surrounded by the insulation ring 10 and the two partitions 14, ensuring the effectiveness of the laser cutter 3 during the circular rotation process, and the cable is protected by the insulation ring 10 and the partition 14 to avoid damage to the cable surface.

[0040] Embodiment 2: Embodiment 2 includes all structures and methods of Embodiment 1, with reference to Figure 1-Figure 9 A laser cutting machine, based on Example 1, the width of the heat insulating ring 10 is smaller than the width of the fixed ring 2, and the top and both sides of the mounting frame 1 are opened, so that the area positions at both ends of the fixed ring 2 can be directly connected to the outside; and the heat exchange and cooling effect in the fixed ring 2 is improved by setting the heat conductive material of the fixed ring 2, setting the width of the heat insulating ring 10 smaller than the fixed ring 2, and coordinating the reciprocating rotation of the fixed ring 2 to discharge heat and cool down.

[0041] In the present invention, reference is made to Figure 1-Figure 9A fixing plate 16 is installed at the middle position of both sides of the mounting frame 1. A fixing hole is opened at one end of the fixing plate 16 away from the ring gear 11. A shaft 17 is rotatably connected to the inner wall of the fixing hole. The shaft 17 extends horizontally toward the axial direction of the fixing ring 2. The outer wall of the shaft 17 is fixed with blades 18 distributed in an annular array. The blades 18 extend horizontally toward the fixing ring 2 to the inner side of the insulation ring 10. The width of the blades 18 gradually increases toward the fixing ring 2. The inner wall of the insulation ring 10 is fixed with a collision device distributed in an annular array at one end away from the ring gear 11. Rod 19, the collision rod 19 is extended in the radial direction of the insulation ring 10, and the end position of the blade 18 away from the fixed plate 16 is in contact with the collision rod 19. Therefore, when the insulation ring 10 rotates, the collision rod 19 collides with the edge position of the blade 18 at intervals, causing mechanical vibration in the fixed ring 2 to cause debris or slag on the inner wall to fall off and move to the bottom end, and the shaft 17 and the blade 18 are rotated in a circle along the horizontal axis perpendicular to the fixed ring 2 at the end position of the insulation ring 10, thereby improving the surrounding heat dissipation and cooling effect during laser cutting.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A laser cutting machine, comprising a mounting frame (1), characterized in that: Both ends of the mounting frame (1) are provided with rotating holes (101), a fixing ring (2) is rotatably connected between the two rotating holes (101), an outer wall of the fixing ring (2) is connected to a driving mechanism, the driving mechanism drives the fixing ring (2) to reciprocate, and the fixing ring (2) deflects in a single direction at an angle greater than one hundred and eighty degrees, a laser cutter (3) is arranged on the top of the fixing ring (2), a guard plate (4) is fixed at a position on the inner wall of the fixing ring (2) corresponding to the laser cutter (3), and the fixing ring (2) is made of a heat-conducting material; Bases (5) are provided at both ends of the mounting frame (1), and a lifting platform (6) is provided above the base (5). A mounting frame (7) is fixed at a position on the fixed ring (2) corresponding to the laser cutter (3), and an electric guide rail (8) is fixed to the side wall of the mounting frame (7). The electric guide rail (8) extends in the radial direction of the fixed ring (2), and the laser cutter (3) and the electric guide rail (8) are connected. A heat insulation ring (10) is fixed to the outer wall of the mounting frame (7), and a ring gear (11) is fixed to one end of the inner wall of the heat insulation ring (10). The driving mechanism is provided with a driving motor (12) fixed to the outer wall of the mounting frame (1), and a gear (13) meshing with the ring gear (11) is fixed to the output shaft of the driving motor (12). The width of the heat insulation ring (10) is smaller than the width of the fixed ring (2). The mounting frame (1 ) are provided with openings at the top and both sides, and fixing plates (16) are installed at the middle positions of both sides of the mounting frame (1), and a fixing hole is provided at one end of the fixing plate (16) away from the ring gear (11), and a shaft (17) is rotatably connected to the inner wall of the fixing hole, and blades (18) distributed in an annular array are fixed to the outer wall of the shaft (17), and the blades (18) extend horizontally toward the fixing ring (2) to the inner side of the heat insulation ring (10), and the width of the blades (18) gradually increases toward the fixing ring (2), and a collision rod (19) distributed in an annular array is fixed at one end of the circumferential inner wall of the heat insulation ring (10) away from the ring gear (11), and the collision rod (19) is extended in the radial direction of the heat insulation ring (10), and the blade (18) is in contact with the collision rod (19) at one end away from the fixing plate (16).

2. A laser cutting machine according to claim 1, characterized in that: The inner wall of the fixing ring (2) is flush with the inner wall of the rotating hole (101); a limiting ring (9) is fixed at a position corresponding to the inner wall of the mounting frame (1) and the fixing ring (2); and the inner wall of the limiting ring (9) is in sliding contact with the outer wall of the fixing ring (2).

3. A laser cutting machine according to claim 2, characterized in that: Storage boxes (15) are fixed to the bottom of both ends of the mounting frame (1), and the top end of the storage box (15) is open, and the top end of the storage box (15) is flush with the bottom end of the rotating hole (101).

4. A laser cutting machine according to any one of claims 1 to 3, characterized in that: Both ends of the circumferential outer wall of the heat insulation ring (10) are fixed with annular partition plates (14), and both the partition plates (14) and the heat insulation ring (10) are made of heat insulation material.

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