Laser cutting machine head nozzle convenient to adjust

Abstract

The utility model relates to the technical field of laser cutting machines, in particular to a laser cutting machine head nozzle convenient to adjust, which comprises a mounting structure, a nozzle main body and an iris type adjusting structure, the nozzle body comprises a base, the base is fixedly connected with the bottom side of the rotating seat, and a regular hexagon sliding groove is formed in the bottom side of the base; the iris type adjusting structure comprises six iris substrates, the six iris substrates are annularly arranged on the bottom side of the base at equal angles, a sliding block is fixedly installed on the edge of one side of the upper surface of each iris substrate, and the sliding blocks are connected with the regular hexagon sliding grooves in a sliding and clamping mode. According to the utility model, the six iris substrates form an iris-imitating structure, and the sliding block slides in one side of the regular hexagonal sliding chute to drive the iris substrates to slide, so that the size of the opening defined by the iris substrates is adjusted, the effect of adjusting the actual size of the air outlet nozzle is further realized, and meanwhile, the laser blocking capability of the ceramic material is utilized, so that the air outlet nozzle is more uniform in size. And the diameter of the emitted laser can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting machines, in particular to a nozzle of a laser cutting machine head that is convenient to adjust. Background Technique

[0002] A laser cutting machine emits laser light from a laser, which is focused into a laser beam with a high power density through an optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach the melting point or boiling point. At the same time, a high-pressure gas coaxial with the beam blows away the melted or vaporized metal. As the relative position of the beam and the workpiece moves, finally a cut is formed in the material, thus achieving the purpose of cutting.

[0003] When a laser cutting machine is cutting, a machine head nozzle is generally connected to the front end of the cutting head by a thread. The machine head nozzle is set in a detachable manner. When it is necessary to adjust the size of the nozzle, that is, to adjust the size of the laser hole in the nozzle, the existing nozzles generally do not have a device for adjusting the laser hole. Therefore, when adjustment is needed, the entire nozzle often needs to be replaced, which is rather inconvenient. And it is necessary to equip multiple types of nozzles at the same time, which also increases the cost. Content of the Utility Model

[0004] The purpose of the utility model is to provide a nozzle of a laser cutting machine head that is convenient to adjust, so as to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] A nozzle of a laser cutting machine head that is convenient to adjust, comprising:

[0007] An installation structure, the installation structure includes a rotating base;

[0008] A nozzle body, the nozzle body includes a base, the base is fixedly connected to the bottom side of the rotating base, and a regular hexagon chute is opened on the bottom side of the base;

[0009] An iris type adjustment structure, the iris type adjustment structure includes iris substrates, the number of iris substrates is six, the six iris substrates are arranged in an annular and equally angled manner on the bottom side of the base, a slider is fixedly installed on one side edge of the upper surface of the iris substrate, and the slider is slidably clamped with the regular hexagon chute.

[0010] Furthermore: The installation structure further includes:

[0011] A rotating opening, the rotating opening is fixedly installed on the upper surface of the rotating base;

[0012] A first sealing gasket, the first sealing gasket is fixedly attached to the upper opening of the rotating opening;

[0013] The second sealing gasket, and the second sealing gasket is sleeved on the lower edge of the outer surface of the screw mouth.

[0014] Furthermore, the nozzle body further includes:

[0015] Limit blocks, the number of the limit blocks is six, and the six limit blocks are fixedly embedded at the fold angles of the regular hexagon chute;

[0016] Connecting rods, the number of the connecting rods is six, and the six connecting rods are fixedly installed at equal angles in a ring at the bottom edge of the base;

[0017] Conical nozzles, and the upper surface edge of the conical nozzles is fixedly connected to the lower ends of the respective connecting rods.

[0018] Furthermore, the iris type adjusting structure further includes:

[0019] Swirling plates, six connecting rod moving grooves are arranged at equal angles in a ring at the edge of the swirling plates, and the connecting rod moving grooves are slidably clamped with the connecting rods;

[0020] Pushing chutes, the number of the pushing chutes is six, and the six pushing chutes are arranged at equal angles in a ring and penetrate through the edge of the swirling plates;

[0021] Force-bearing sliding rods, the force-bearing sliding rods are fixedly installed at the bottom side of the iris substrate, and the force-bearing sliding rods are slidably clamped with the pushing chutes.

[0022] Furthermore, the iris type adjusting structure further includes:

[0023] Swirling rings, and the swirling rings are fixedly sleeved on the outer surface of the swirling plates;

[0024] Damping rotating rings, and the damping rotating rings are sleeved at the gap between the lower edge of the inner wall of the swirling rings and the upper edge of the outer wall of the conical nozzles.

[0025] Compared with the prior art, the beneficial effects of the present utility model are:

[0026] 1. The overall structure is screwed and connected with the laser cutting machine head through the installation structure. All six iris substrates are regular hexagons and made of ceramic material. A regular hexagon structure that fits the regular hexagon chute is formed by abutting against each other at both edges, and then the slider is slidably clamped with the regular hexagon chute to form an iris-like structure. By sliding the slider in one chute of the regular hexagon chute, the iris substrate is driven to slide, thereby realizing the adjustment of the opening size surrounded by each iris substrate, and further realizing the effect of adjusting the actual size of the air outlet nozzle. At the same time, the ability of the ceramic material to block laser can be used to adjust the diameter size of the emitted laser.

[0027] 2. When making adjustments, rotate the rotating plate through the rotating ring, use the movable pushing chute to push the force-bearing sliding rod to move, thereby driving each iris substrate to move, and provide restrictions and guidance for the movement of the iris substrate by the slider sliding in the regular hexagon chute, realizing the free adjustment of the opening size. At the same time, the damping rotating ring provides a damping effect for the rotation of the rotating ring, and after the adjustment is completed, the relative static state of the overall structure of the iris type adjustment structure is maintained by the damping. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0029] Figure 2 is a cross-sectional view of the overall structure of the present utility model;

[0030] Figure 3 is a schematic diagram of the iris type adjustment structure in the present utility model;

[0031] Figure 4 is a partial schematic diagram of the iris type adjustment structure in the present utility model.

[0032] In the figure: 1. Installation structure; 101. Rotating base; 102. Rotating opening; 103. First sealing washer; 104. Second sealing washer; 2. Nozzle body; 201. Base; 202. Regular hexagon chute; 203. Limiting block; 204. Connecting rod; 205. Conical nozzle; 3. Iris type adjustment structure; 301. Rotating plate; 302. Link moving groove; 303. Pushing chute; 304. Force-bearing sliding rod; 305. Iris substrate; 306. Slider; 307. Rotating ring; 308. Damping rotating ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The technical solutions in the embodiments of the present utility model will be clearly and completely described below 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 the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0034] Please refer to Figures 1-4, in the embodiment of the present utility model, a nozzle of a laser cutting head that is convenient to adjust includes an installation structure 1, a nozzle body 2, and an iris adjustment structure 3. The installation structure 1 includes a rotary base 101; the nozzle body 2 includes a base 201, and the base 201 is fixedly connected to the bottom side of the rotary base 101. A regular hexagon chute 202 is opened on the bottom side of the base 201; the iris adjustment structure 3 includes an iris substrate 305. The number of iris substrates 305 is six, and the six iris substrates 305 are arranged in an annular and equally angular manner on the bottom side of the base 201. A slider 306 is fixedly installed on one side edge of the upper surface of the iris substrate 305, and the slider 306 is slidably clamped with the regular hexagon chute 202.

[0035] Specifically, the overall structure is screwed and connected to the laser cutting head through the installation structure 1. The six iris substrates 305 are all regular hexagons and are made of ceramic material, and a regular hexagon structure that fits with the regular hexagon chute 202 is formed by abutting against each other on both sides. Then, the slider 306 is slidably clamped with the regular hexagon chute 202 to form an iris-like structure. By sliding the slider 306 in one side chute of the regular hexagon chute 202, the iris substrate 305 is driven to slide, thereby realizing the adjustment of the opening size surrounded by each iris substrate 305, and further realizing the effect of adjusting the actual size of the air outlet nozzle. At the same time, by using the ability of the ceramic material to block the laser, the diameter size of the emitted laser can be adjusted.

[0036] Embodiment 1

[0037] As Figures 1-2 shown, in this embodiment, the installation structure 1 further includes a screw port 102, a first sealing washer 103, and a second sealing washer 104. The screw port 102 is fixedly installed on the upper surface of the rotary base 101; the first sealing washer 103 is fixedly attached to the upper opening of the screw port 102; the second sealing washer 104 is sleeved on the lower edge of the outer surface of the screw port 102.

[0038] In this embodiment, a force is applied to the rotary base 101, and it is screwed with the laser cutting head through the screw port 102 to connect the air path and the laser generating port, and the sealing performance is enhanced by the first sealing washer 103 and the second sealing washer 104.

[0039] As Figures 1-3 shown, in this embodiment, the nozzle body 2 further includes a limiting block 203, a connecting rod 204, and a conical nozzle 205. The number of limiting blocks 203 is six, and the six limiting blocks 203 are fixedly embedded at the corners of the regular hexagon chute 202; the number of connecting rods 204 is six, and the six connecting rods 204 are fixedly installed on the bottom side edge of the base 201 in an annular and equally angular manner; the upper surface edge of the conical nozzle 205 is fixedly connected to the lower ends of the respective connecting rods 204.

[0040] During specific implementation, the connecting rod 204 fixes and supports the base 201 and the conical nozzle 205 up and down, and provides a moving space for the iris type adjusting structure 3. The limiting block 203 limits the moving range of each slider 306 at each turning point of the regular hexagon chute 202.

[0041] Embodiment 2

[0042] Based on Embodiment 1, in order to supplement the specific method of synchronously controlling the six iris substrates 305, which is not mentioned in Embodiment 1, to adjust the opening size.

[0043] As Figures 2-4 shown, in this embodiment, the iris type adjusting structure 3 further includes a rotating plate 301, a pushing chute 303, a stress sliding rod 304, a rotating ring 307 and a damping rotating ring 308. Six connecting rod moving slots 302 are arranged at equal angles in a ring shape at the edge of the rotating plate 301, and the connecting rod moving slots 302 are slidably clamped with the connecting rod 204; The number of the pushing chutes 303 is six, and the six pushing chutes 303 are arranged at equal angles in a ring shape and are arranged at the edge of the rotating plate 301; The stress sliding rod 304 is fixedly installed at the bottom side of the iris substrate 305, and the stress sliding rod 304 is slidably clamped with the pushing chute 303; The rotating ring 307 is fixedly sleeved on the outer surface of the rotating plate 301; The damping rotating ring 308 is sleeved at the gap between the lower edge of the inner wall of the rotating ring 307 and the upper edge of the outer wall of the conical nozzle 205.

[0044] During specific implementation, when adjusting, the rotating plate 301 is rotated through the rotating ring 307, the stress sliding rod 304 is pushed to move by using the moving pushing chute 303, so as to drive each iris substrate 305 to move, and the movement of the iris substrate 305 is restricted and guided by the sliding of the slider 306 in the regular hexagon chute 202, so as to realize the free adjustment of the opening size. At the same time, the damping rotating ring 308 provides a damping effect for the rotation of the rotating ring 307, and after the adjustment is completed, the overall structure of the iris type adjusting structure 3 is kept relatively static through damping.

[0045] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claims.

[0046] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A nozzle for a laser cutting machine head that is conveniently adjustable, characterized in that, Including: An installation structure (1), the installation structure (1) includes a rotating base (101); A nozzle body (2), the nozzle body (2) includes a base (201), the base (201) is fixedly connected to the bottom side of the rotating base (101), and a regular hexagonal chute (202) is opened on the bottom side of the base (201); An iris adjustment structure (3), the iris adjustment structure (3) includes an iris substrate (305), the number of the iris substrates (305) is six, the six iris substrates (305) are arranged in an annular and equiangular manner on the bottom side of the base (201), and a slider (306) is fixedly installed on one side edge of the upper surface of the iris substrate (305), and the slider (306) is slidably clamped with the regular hexagonal chute (202).

2. The nozzle of the laser cutting machine head that is conveniently adjustable according to claim 1, wherein The installation structure (1) further includes: A rotating port (102), the rotating port (102) is fixedly installed on the upper surface of the rotating base (101); A first sealing washer (103), the first sealing washer (103) is fixedly attached to the upper opening of the rotating port (102); A second sealing washer (104), the second sealing washer (104) is sleeved on the lower edge of the outer surface of the rotating port (102).

3. The nozzle of the laser cutting machine head that is conveniently adjustable according to claim 1, wherein The nozzle body (2) further includes: Limit blocks (203), the number of the limit blocks (203) is six, and the six limit blocks (203) are fixedly embedded at the corners of the regular hexagonal chute (202); Connecting rods (204), the number of the connecting rods (204) is six, and the six connecting rods (204) are fixedly installed on the bottom side edge of the base (201) in an annular and equiangular manner; A conical nozzle (205), the edge of the upper surface of the conical nozzle (205) is fixedly connected to the lower ends of the respective connecting rods (204).

4. The nozzle of the laser cutting head that is conveniently adjustable according to claim 1, characterized in that, The iris adjustment structure (3) further includes: A rotating plate (301), six connecting rod moving grooves (302) are arranged in an annular and equiangular manner and penetrated at the edge of the rotating plate (301), and the connecting rod moving grooves (302) are slidably clamped with the connecting rods (204); Pushing chutes (303), the number of the pushing chutes (303) is six, and the six pushing chutes (303) are arranged in an annular and equiangular manner and penetrated at the edge of the rotating plate (301); Force-bearing sliding rods (304), the force-bearing sliding rods (304) are fixedly installed on the bottom side of the iris substrate (305), and the force-bearing sliding rods (304) are slidably clamped with the pushing chutes (303).

5. The nozzle of the laser cutting head that is conveniently adjustable according to claim 4, characterized in that, The iris adjustment structure (3) further includes: A rotating ring (307), the rotating ring (307) is fixedly sleeved on the outer surface of the rotating plate (301); A damping rotating ring (308), the damping rotating ring (308) is sleeved in the gap between the lower edge of the inner wall of the rotating ring (307) and the upper edge of the outer wall of the conical nozzle (205).

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