Protective structure of laser cutting machine

Abstract

The utility model discloses a laser cutting machine protection structure which comprises a movable sleeve, guide sliding grooves which are symmetrically distributed are formed in the inner wall of the movable sleeve, guide sliding blocks are connected to the inner walls of the guide sliding grooves in a sliding mode, installation rings are fixedly connected to the opposite surfaces of the two guide sliding blocks, and laser probe bodies are fixedly installed on the inner walls of the installation rings. The upper surface of the guide sliding block is fixedly connected with a first reset spring, and one end of the first reset spring is fixedly connected with the inner top wall of the guide sliding groove. Therefore, damage caused by collision due to misoperation and the like is avoided, and the problems that damage is easily caused when the laser probe body is collided, the cutting efficiency of materials is reduced, and the maintenance cost is seriously increased are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting machines, in particular to a protective structure for a laser cutting machine. Background Art

[0002] With the development of science and technology, people's lifestyles have undergone various changes, and various mechanical devices have appeared in people's lives, especially the emergence of laser cutting machines, which has brought great convenience to industrial production. The laser cutting machine focuses the laser emitted from the laser into a high-power density laser beam through the optical path system. The laser beam irradiates the surface of the workpiece to make the workpiece reach the melting point or boiling point. At the same time, the high-pressure gas coaxial with the beam blows away the molten or vaporized metal. As the relative position of the beam and the workpiece moves, the material is eventually cut, thereby achieving the purpose of cutting. The external optical path part of the laser cutting machine mainly adopts the flying optical path system, and its processing method has the characteristics of high precision and low processing cost.

[0003] When working, existing laser cutting machines usually use a laser generator to generate a laser light source, which cuts the material through a laser probe. The operator controls the movement of the laser probe to achieve mobile cutting of the material. However, the laser probe is prone to collisions due to incorrect operations during repeated movement operations, and the laser probe currently does not have a protective structure. Collisions can easily cause damage to the laser probe, which not only affects the cutting efficiency of the material, but also greatly increases the maintenance cost. Utility Model Content

[0004] The purpose of the utility model is to provide a protective structure for a laser cutting machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser cutting machine protection structure, comprising a movable sleeve, the inner wall of the movable sleeve is provided with symmetrically distributed guide slots, the inner wall of the guide slot is slidably connected with a guide slider, the opposite surfaces of the two guide sliders are fixedly connected with a mounting ring, the inner wall of the mounting ring is fixedly installed with a laser probe body, the upper surface of the guide slider is fixedly connected with a first return spring, and one end of the first return spring is fixedly connected with the inner top wall of the guide slot;

[0006] A protective device is provided on the lower surface of the mounting ring, and the protective device comprises an annular protective block, one end of which is fixedly connected to the lower surface of the mounting ring.

[0007] Preferably, the outer surface of the movable sleeve is fixedly connected with sealing sleeves distributed in a ring array, and the upper surface of the sealing sleeve is provided with exhaust holes.

[0008] Preferably, an annular limit block is fixedly sleeved on the inner wall of the sealing sleeve, an annular limit block is fixedly connected to the upper surface of the annular seal gasket, the outer surface of the annular seal gasket contacts the inner wall of the sealing sleeve, and a second return spring is fixedly connected to the inner top wall of the sealing sleeve.

[0009] Preferably, one end of the second return spring is fixedly connected to a sealing pressure ball, and an outer surface of the sealing pressure ball is provided with a slow vent hole.

[0010] Preferably, the outer surface of the sealing pressure ball is in compression contact with the inner surface of the annular sealing gasket, and the lower surface of the annular limiting block is fixedly connected with a supporting spring.

[0011] Preferably, one end of the support spring is fixedly connected to a piston block, the outer surface of the piston block is movably sleeved with the inner wall of the sealing sleeve, and the lower surface of the piston block is fixedly connected to a connecting rod.

[0012] Preferably, one end of the connecting rod extends to the lower surface of the sealing sleeve, and one end of the connecting rod is fixedly connected to a slope protection block.

[0013] Compared with the prior art, the beneficial effect of the utility model is that the protective device can realize buffering protection for the surroundings and bottom of the laser probe body, thereby avoiding damage caused by bumps due to operational errors and the like, and solving the problem that the laser probe body is easily damaged when bumps occur, which not only reduces the cutting efficiency of the material, but also seriously increases the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 A partial exploded view of a movable sleeve structure of a laser cutting machine protection structure proposed by the utility model;

[0016] Figure 3 A three-dimensional diagram of the sealing sleeve structure of a laser cutting machine protection structure proposed by the utility model;

[0017] Figure 4 This is a three-dimensional diagram of the sealing ball pressure structure of the laser cutting machine protection structure proposed by the utility model.

[0018] In the figure: 1. movable sleeve; 2. guide groove; 3. guide slider; 4. mounting ring; 5. laser probe body; 6. first return spring; 7. annular protective block; 71. sealing sleeve; 72. exhaust hole; 73. annular limit block; 74. annular sealing gasket; 75. second return spring; 76. sealing pressure ball; 77. slow vent hole; 78. support spring; 79. piston block; 710. connecting rod; 711. inclined surface protective block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 4 The utility model provides a technical solution: a laser cutting machine protection structure, comprising a movable sleeve 1, the inner wall of the movable sleeve 1 is provided with symmetrically distributed guide slots 2, the inner wall of the guide slot 2 is slidably connected with a guide slider 3, the opposite surfaces of the two guide sliders 3 are fixedly connected with a mounting ring 4, the inner wall of the mounting ring 4 is fixedly installed with a laser probe body 5, the upper surface of the guide slider 3 is fixedly connected with a first return spring 6, one end of the first return spring 6 is fixedly connected with the inner top wall of the guide slot 2;

[0021] A protective device is provided on the lower surface of the mounting ring 4 , and the protective device includes an annular protective block 7 , one end of which is fixedly connected to the lower surface of the mounting ring 4 .

[0022] Furthermore, the outer surface of the movable sleeve 1 is fixedly connected with a sealing sleeve 71 distributed in a ring array, and an exhaust hole 72 is opened on the upper surface of the sealing sleeve 71. The guide slider 3 cooperates with the guide slide groove 2 and the mounting ring 4 to drive the laser probe body 5 to move stably. The reset elastic force of the first reset spring 6 drives the laser probe body 5 to reset and move. The lower end of the annular protective block 7 is lower than the lower end of the laser probe body 5, thereby protecting its lower end.

[0023] Furthermore, an annular limit block 73 is fixedly sleeved on the inner wall of the sealing sleeve 71, an annular sealing gasket 74 is fixedly connected to the upper surface of the annular limit block 73, the outer surface of the annular sealing gasket 74 contacts the inner wall of the sealing sleeve 71, and a second return spring 75 is fixedly connected to the inner top wall of the sealing sleeve 71. The annular limit block 73 plays a role in positioning and supporting the annular sealing gasket 74.

[0024] Furthermore, one end of the second return spring 75 is fixedly connected to a sealing pressure ball 76, and a slow vent hole 77 is provided on the outer surface of the sealing pressure ball 76. The return elastic force of the second return spring 75 drives the sealing pressure ball 76 to return and move, and the slow vent hole 77 is filled with a fine-pore sponge block, which helps to slow down the gas flow rate.

[0025] Furthermore, the outer surface of the sealing pressure ball 76 is in compression contact with the inner surface of the annular sealing gasket 74, and the lower surface of the annular limit block 73 is fixedly connected with a support spring 78. The sealing pressure ball 76 plays a sealing role by being squeezed and matched with the annular sealing gasket 74, and the annular limit block 73 serves to fix and support one end of the support spring 78.

[0026] Furthermore, one end of the support spring 78 is fixedly connected to a piston block 79, the outer surface of the piston block 79 is movably connected to the inner wall of the sealing sleeve 71, and the lower surface of the piston block 79 is fixedly connected to a connecting rod 710. The reset elastic force of the support spring 78 drives the piston block 79 to reset, and the movement of the piston block 79 drives the connecting rod 710 to move.

[0027] Furthermore, one end of the connecting rod 710 extends to the lower surface of the sealing sleeve 71, and one end of the connecting rod 710 is fixedly connected to a sloped protection block 711. The sloped protection block 711, through its sloped setting, facilitates the connection rod 710 to move when it collides with an object.

[0028] Through this protective device, the laser probe body 5 is buffered and protected all around and at the bottom, thereby avoiding damage caused by bumps due to operational errors and the like, and solving the problem that the laser probe body 5 is easily damaged when bumps occur, which not only reduces the cutting efficiency of the material, but also seriously increases the maintenance cost.

[0029] Working principle: Step 1, when the laser probe body 5 is translated and collides, the inclined surface of the inclined surface protection block 711 will contact the colliding object, and the extrusion force during the contact drives the piston block 79 to move upward on the inner wall of the sealing sleeve 71 through the connecting rod 710, and at the same time drives the support spring 78 to shrink and move, and the impact force during the collision is buffered by the shrinkage of the support spring 78, and the upward movement of the piston block 79 squeezes the gas in the sealing sleeve 71. Since the slow vent hole 77 cannot quickly discharge the gas, the gas squeezes the sealing pressure ball 76, and the movement of the sealing pressure ball 76 drives the second return spring 75 to shrink, and the movement of the sealing pressure ball 76 separates it from the annular sealing gasket 74. At this time, the gas flows and is discharged through the exhaust hole 72;

[0030] When the gas is exhausted, the restoring force of the second restoring spring 75 drives the sealing pressure ball 76 to reset and move, so that the sealing pressure ball 76 moves to squeeze and contact with the annular sealing gasket 74. When the colliding object is out of contact with the inclined surface protection block 711, the restoring force of the support spring 78 drives the inclined surface protection block 711 to reset and move through the piston block 79 and the connecting rod 710. The downward movement of the piston block 79 generates negative pressure in the gas in the sealing sleeve 71, and because the slow vent hole 77 cannot quickly circulate the external gas, the piston block 79 slowly drives the inclined surface protection block 711 to reset and move through the connecting rod 710, thereby avoiding the impact vibration caused by the rapid reset, and then protecting the laser probe body 5 from shock.

[0031] Step three, when the laser probe body 5 collides with the object when it moves downward, the lower end surface of the inclined protection block 711 will first contact and buffer the collision. Most of the descent collision can be buffered by the methods in the above steps one and two. When the descent collision is strong, the inclined protection block 711 drives the piston rod to move up to a certain extent through the connecting rod 710. At this time, since the lower end of the annular protection block 7 is lower than the laser probe body 5, the lower end of the annular protection block 7 contacts with the collision object, and drives the laser probe body 5 to rise through the mounting ring 4 and the guide slider 3, thereby protecting the laser probe. When the collision is over, the laser probe body 5 is driven to reset by the reset elastic force of the first reset spring 6 and the guide slider 3.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser cutting machine protective structure, comprising a movable sleeve (1), characterized in that: The inner wall of the movable sleeve (1) is provided with symmetrically distributed guide grooves (2), the inner wall of the guide groove (2) is slidably connected with a guide slider (3), the opposing surfaces of the two guide sliders (3) are fixedly connected with a mounting ring (4), the inner wall of the mounting ring (4) is fixedly mounted with a laser probe body (5), the upper surface of the guide slider (3) is fixedly connected with a first return spring (6), one end of the first return spring (6) is fixedly connected to the inner top wall of the guide groove (2); The lower surface of the mounting ring (4) is provided with a protective device, and the protective device comprises an annular protective block (7), and one end of the annular protective block (7) is fixedly connected to the lower surface of the mounting ring (4).

2. A laser cutting machine protective structure according to claim 1, characterized in that: The outer surface of the movable sleeve (1) is fixedly connected to sealing sleeves (71) distributed in a ring array, and the upper surface of the sealing sleeves (71) is provided with exhaust holes (72).

3. A laser cutting machine protective structure according to claim 2, characterized in that: An annular limiting block (73) is fixedly sleeved on the inner wall of the sealing sleeve (71), an annular sealing gasket (74) is fixedly connected to the upper surface of the annular limiting block (73), an outer surface of the annular sealing gasket (74) contacts the inner wall of the sealing sleeve (71), and a second return spring (75) is fixedly connected to the inner top wall of the sealing sleeve (71).

4. The protective structure for a laser cutting machine according to claim 3, characterized in that: One end of the second return spring (75) is fixedly connected to a sealing pressure ball (76), and a slow vent hole (77) is provided on the outer surface of the sealing pressure ball (76).

5. The protective structure for a laser cutting machine according to claim 4, characterized in that: The outer surface of the sealing pressure ball (76) is in compression contact with the inner surface of the annular sealing gasket (74), and the lower surface of the annular limiting block (73) is fixedly connected to a supporting spring (78).

6. A laser cutting machine protective structure according to claim 5, characterized in that: One end of the support spring (78) is fixedly connected to a piston block (79), the outer surface of the piston block (79) is movably sleeved with the inner wall of the sealing sleeve (71), and the lower surface of the piston block (79) is fixedly connected to a connecting rod (710).

7. The protective structure for a laser cutting machine according to claim 6, characterized in that: One end of the connecting rod (710) extends to the lower surface of the sealing sleeve (71), and one end of the connecting rod (710) is fixedly connected to a slope protection block (711).

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