Cutting head anti-collision mechanism of laser cutting robot

Abstract

The utility model relates to a cutting head anti-collision mechanism of a laser cutting robot, which comprises an extension frame butted with the laser cutting robot, a laser cutting head is arranged at one end of the extension frame, and mounting columns are fixed on the front side and the back side of the laser cutting head and the extension frame. A mounting ring arranged on the laser cutting head in a sleeving mode is fixed to the mounting column, a plurality of sets of supports are evenly fixed to the surface of the mounting ring, auxiliary assemblies used in cooperation with the laser cutting head are arranged on the mounting ring and the supports, and each auxiliary assembly comprises two sets of fixing rods symmetrically inserted into the corresponding set of supports in the vertical direction; the laser cutting head can be comprehensively protected by arranging the auxiliary assembly, utilizing a multi-buffering structure and being matched with a plurality of sets of buffering plates evenly arranged on the surface of the laser cutting head, so that the laser cutting head can be buffered in time when being subjected to impact force, the impact force can be effectively prevented from being directly transmitted to the laser cutting head, and the laser cutting head is prevented from being damaged. And the anti-collision effect of the laser cutting head is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting robots, in particular to a cutting head anti-collision mechanism for a laser cutting robot. Background Art

[0002] A laser cutting robot is a robot integrating laser cutting technology and an automatic control system. It can use a laser beam to perform high-precision cutting and processing on various materials, including metals, plastics, wood, etc. This robot system is based on a robot mechanism and uses high-power and high-energy-density directional laser generated by a fiber laser to achieve automatic cutting of plates. The cutting head is an essential cutting component in a laser cutting robot. In order to avoid damage to the cutting head due to external impact, an anti-collision mechanism is often installed on the cutting head.

[0003] However, the cutting head anti-collision mechanism of the existing laser cutting robot has a poor anti-collision effect on the laser cutting head, cannot provide comprehensive protection for the laser cutting head, and cannot buffer the external force in time, resulting in the impact force being directly transmitted to the laser cutting head, which will damage the laser cutting head, and further directly affect the normal use of the laser cutting robot, posing a great potential hazard. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages in the prior art that the anti-collision effect on the laser cutting head is poor, the laser cutting head cannot be comprehensively protected, and the external force cannot be buffered in time, and to propose a cutting head anti-collision mechanism for a laser cutting robot.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A cutting head anti-collision mechanism for a laser cutting robot includes an extension frame docked with the laser cutting robot. One end of the extension frame is provided with a laser cutting head. Installation columns are fixed on both the front and back of the laser cutting head and on the extension frame. An installation ring sleeved on the laser cutting head is fixed on the installation column. A plurality of groups of brackets are evenly fixed on the surface of the installation ring. An auxiliary component used in cooperation with the laser cutting head is arranged on the installation ring and the brackets.

[0007] Preferably, the auxiliary assembly includes two sets of fixing rods symmetrically inserted on each set of brackets in the up-and-down direction. One end of adjacent two sets of the fixing rods is fixed with a buffer plate, and the other end of adjacent two sets of the fixing rods is fixed with a square block which is attached to the inner wall of the bracket. A first spring is wound around each set of the fixing rods, and both ends of the first spring are fixed on the side where the buffer plate and the bracket are close to each other. A T-shaped rod is fixed on each set of the brackets. A moving ring is slidably arranged on the T-shaped rod, and the top of the moving ring is attached to the protruding end of the T-shaped rod. A second spring is wound around each set of the T-shaped rods, and both ends of the second spring are fixed on the side where the moving ring and the bracket are close to each other. A fixing belt is fixed on the upper square block, and the top end of the fixing belt penetrates through the bracket and is fixed on the moving ring.

[0008] Preferably, the auxiliary assembly further includes a first guiding cylinder rotatably installed on the top of each set of brackets through a first bearing seat and used in cooperation with the fixing belt. An elastic belt is arranged on the side where adjacent two sets of the square blocks are close to each other. On each set of the brackets, two second guiding cylinders used in cooperation with the elastic belt are symmetrically rotatably installed in the up-and-down direction through second bearing seats.

[0009] Preferably, on the sides where multiple sets of the brackets are away from each other, two elastic blocks used in cooperation with the buffer plate are symmetrically arranged in the up-and-down direction.

[0010] Preferably, the number of the buffer plates is at least five groups. The buffer plates are integrally in an arc structure, and there is a spacing between the sides where adjacent two sets of the buffer plates are close to each other.

[0011] Preferably, the bracket is integrally in an L-shaped structure. On the top of the inner cavity of each set of the brackets, two triangular reinforcing blocks are symmetrically fixed.

[0012] Preferably, the end of the T-shaped rod fixed on the bracket is in a square structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The anti-collision mechanism of the cutting head of the laser cutting robot can, by setting up an auxiliary component and utilizing the elastic rebound of the first spring, give a driving force to the buffer plate so that when the buffer plate is impacted, the impact force can be initially buffered in a timely manner. When the buffer plate moves under impact, it will drive the square block to move synchronously. Thus, under the direction-changing action of the first guiding cylinder, the moving ring can be synchronously pulled by the fixing belt, so that the second spring can be compressed. At this time, by utilizing the elastic rebound of the second spring, the square block can be further buffered and assisted in resetting, thereby buffering the impact force again. When two adjacent square blocks move, under the direction-changing action of the second guiding cylinder, both ends of the elastic belt can be synchronously stretched, and by utilizing the elastic rebound of the elastic belt, the square block can be further buffered, thereby further improving the buffering performance of the buffer plate and further buffering the impact force for the third time. At this time, with the multiple buffering structure and in cooperation with multiple groups of buffer plates uniformly arranged on the surface of the laser cutting head, the laser cutting head can be comprehensively protected so that when the laser cutting head is impacted by an impact force, it can be buffered in a timely manner, effectively preventing the impact force from being directly transmitted to the laser cutting head and improving the anti-collision effect of the laser cutting head. Brief Description of the Drawings

[0015] Figure 1 FIG. is a schematic structural diagram of an anti-collision mechanism for the cutting head of a laser cutting robot proposed by the present utility model;

[0016] Figure 2 FIG. is a partial three-dimensional structural view of an anti-collision mechanism for the cutting head of a laser cutting robot proposed by the present utility model;

[0017] Figure 3 FIG. is a partial bottom view of an anti-collision mechanism for the cutting head of a laser cutting robot proposed by the present utility model.

[0018] In the figure: 1. Extension frame; 2. Laser cutting head; 3. Mounting column; 4. Bracket; 5. Elastic block; 6. Fixed rod; 7. Buffer plate; 8. First spring; 9. Square block; 10. Fixing belt; 11. Elastic belt; 12. T-shaped rod; 13. Moving ring; 14. Second spring; 15. Mounting ring; 16. First guiding cylinder; 17. Second guiding cylinder. Detailed Embodiments

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0020] Embodiment

[0021] Refer to Figures 1 - 3, a collision prevention mechanism for the cutting head of a laser cutting robot, including an extension frame 1 docked with the laser cutting robot. One end of the extension frame 1 is provided with a laser cutting head 2. Installation columns 3 are fixed on both the front and back of the laser cutting head 2 and on the extension frame 1. An installation ring 15 sleeved on the laser cutting head 2 is fixed on the installation column 3. A plurality of groups of brackets 4 are evenly fixed on the surface of the installation ring 15. The brackets 4 are integrally in an L-shaped structure. Each group of brackets 4 can give a certain moving distance to the fixing rod 6 and the square block 9, avoiding hitting the laser cutting head 2. The design of the triangular reinforcement blocks improves the overall strength of the brackets 4;

[0022] An auxiliary component for cooperating with the laser cutting head 2 is arranged on the installation ring 15 and the brackets 4. The auxiliary component includes two fixing rods 6 symmetrically inserted in each group of brackets 4 in the up and down direction. One end of two adjacent fixing rods 6 is fixed with a buffer plate 7. Two elastic blocks 5 for cooperating with the buffer plate 7 are symmetrically arranged in the up and down direction on the mutually remote sides of the plurality of groups of brackets 4. By setting the elastic blocks 5, while limiting the buffer plate 7, the buffer plate 7 can be buffered again, further improving the buffering performance and avoiding the buffer plate 7 directly hitting the brackets 4. The other ends of two adjacent fixing rods 6 are fixed with a square block 9 and the square block 9 is attached to the inner wall of the brackets 4. The number of buffer plates 7 is at least five groups. The buffer plates 7 are integrally in an arc structure. There is a spacing between the mutually close sides of two adjacent buffer plates 7. The limitation of the number of buffer plates 7 is to improve the protection effect on the laser cutting head 2 and reduce the protection dead angle. And the arc design can unload some impact forces. At the same time, the spacing design can avoid affecting the normal movement of two adjacent buffer plates 7. A first spring 8 is wound on each fixing rod 6 and the two ends of the first spring 8 are fixed on the mutually close sides of the buffer plate 7 and the brackets 4. A T-shaped rod 12 is fixed on each group of brackets 4. A moving ring 13 is slidably arranged on the T-shaped rod 12 and the top of the moving ring 13 is attached to the protruding end of the T-shaped rod 12. The end of the T-shaped rod 12 fixed on the brackets 4 is in a square structure. The design of the end in a square structure can slide and limit the moving ring 13 to avoid it rotating on the T-shaped rod 12;

[0023] A second spring 14 is wound around each set of T-shaped rods 12, and both ends of the second spring 14 are fixed to the sides of the moving ring 13 and the bracket 4 that are close to each other. A fixing strap 10 is fixed to the upper square block 9, and the top end of the fixing strap 10 passes through the bracket 4 and is fixed to the moving ring 13. The auxiliary component further includes a first guiding cylinder 16 rotatably installed on the top of each set of brackets 4 through a first bearing seat and cooperating with the fixing strap 10. An elastic band 11 is arranged on the sides of two adjacent sets of square blocks 9 that are close to each other. On each set of brackets 4, second guiding cylinders 17 that cooperate with the elastic band 11 are symmetrically rotatably installed in the vertical direction through second bearing seats. By providing the auxiliary component, using a multi-stage buffering structure and cooperating with multiple sets of buffer plates 7 evenly arranged on the surface of the laser cutting head 2, the laser cutting head 2 can be comprehensively protected, so that when the laser cutting head 2 is subjected to an impact force, it can be buffered in time, effectively preventing the impact force from being directly transmitted to the laser cutting head 2 and improving the anti-collision effect of the laser cutting head 2.

[0024] In the present utility model, when subjected to an external impact, one or more sets of buffer plates 7 will directly contact the impact object. At this time, using the elastic rebound of the first spring 8, the impact force can be initially buffered in time. And the buffer plate 7 will move a certain distance due to the impact force. At this time, with the cooperation of the fixing rod 6, the buffer plate 7 will drive the square block 9 to move synchronously. And at this time, the first guiding cylinder 16 changes the direction of the fixing strap 10, so that the square block 9 can pull the fixing strap 10 to move synchronously. And the fixing strap 10 can drive the moving ring 13 to move downward synchronously and compress the second spring 14. At this time, using the elastic rebound of the second spring 14, the square block 9 and the buffer plate 7 can be further buffered, and further buffer the impact force received by the buffer plate 7. And when two adjacent sets of square blocks 9 move, and with the direction change of the second guiding cylinder 17, the two ends of the elastic band 11 can be stretched synchronously. At this time, using the elastic rebound of the elastic band 11, the square block 9 and the buffer plate 7 can be further buffered, further improving the buffering performance of the buffer plate 7, and further buffering the impact force for the third time. At this time, using the multi-stage buffering structure and cooperating with multiple sets of buffer plates 7 evenly arranged on the surface of the laser cutting head 2, the laser cutting head 2 can be comprehensively protected, effectively preventing the impact force from being directly transmitted to the laser cutting head 2 and improving the anti-collision effect of the laser cutting head 2.

[0025] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A cutting head anti-collision mechanism for a laser cutting robot, comprising an extension frame (1) docked with the laser cutting robot, characterized in that: A laser cutting head (2) is arranged at one end of the extension frame (1); mounting posts (3) are fixed on the front and back sides of the laser cutting head (2) and the extension frame (1); a mounting ring (15) sleeved on the laser cutting head (2) is fixed on the mounting post (3); a plurality of groups of brackets (4) are evenly fixed on the surface of the mounting ring (15); and auxiliary components for use with the laser cutting head (2) are arranged on the mounting ring (15) and the brackets (4).

2. The cutting head anti-collision mechanism of a laser cutting robot according to claim 1, characterized in that: The auxiliary component comprises two groups of fixing rods (6) symmetrically inserted on each group of brackets (4) in the vertical direction, one end of the two adjacent groups of fixing rods (6) is fixed with a buffer plate (7), the other end of the two adjacent groups of fixing rods (6) is fixed with a square block (9) and the square block (9) is attached to the inner wall of the bracket (4), each group of the fixing rods (6) is wound with a first spring (8) and the two ends of the first spring (8) are fixed on the side where the buffer plate (7) and the bracket (4) are close to each other, and each group of the brackets (4) is provided with a first spring (8) wound around the fixing rods (6) and the two ends of the first spring (8) are fixed on the side where the buffer plate (7) and the bracket (4) are close to each other. A T-shaped rod (12) is fixed, a moving ring (13) is slidably provided on the T-shaped rod (12), and the top of the moving ring (13) is fitted on the protruding end of the T-shaped rod (12), a second spring (14) is wound around each group of the T-shaped rods (12), and the two ends of the second spring (14) are fixed on the side where the moving ring (13) and the bracket (4) are close to each other, and a fixing belt (10) is fixed on the upper block (9), and the top end of the fixing belt (10) passes through the bracket (4) and is fixed on the moving ring (13).

3. The cutting head anti-collision mechanism of a laser cutting robot according to claim 2, characterized in that: The auxiliary component also includes a first guide cylinder (16) rotatably mounted on the top of each group of brackets (4) through a first bearing seat and used in conjunction with a fixing belt (10); an elastic belt (11) is provided on the side close to each other of two adjacent groups of blocks (9); and a second guide cylinder (17) rotatably mounted on each group of brackets (4) through a second bearing seat and used in conjunction with the elastic belt (11) is symmetrically mounted in the up and down direction.

4. The cutting head anti-collision mechanism of a laser cutting robot according to claim 2, characterized in that: Two groups of elastic blocks (5) used in conjunction with the buffer plate (7) are symmetrically arranged along the up-down direction on one side of the plurality of groups of brackets (4) that are away from each other.

5. The cutting head anti-collision mechanism of a laser cutting robot according to claim 2, characterized in that: The number of the buffer plates (7) is at least five groups, the buffer plates (7) are in an arc-shaped structure as a whole, and there is a distance between two adjacent groups of buffer plates (7) on the sides where they are close to each other.

6. The cutting head anti-collision mechanism of a laser cutting robot according to claim 1, characterized in that: The bracket (4) is in an L-shaped structure as a whole, and two groups of triangular reinforcement blocks are symmetrically fixed on the top of the inner cavity of each group of the brackets (4).

7. The cutting head anti-collision mechanism of a laser cutting robot according to claim 2, characterized in that: One end of the T-shaped rod (12) fixed on the bracket (4) is in a square structure.

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