Safety protection mechanism and laser cutting machine

Abstract

The utility model belongs to the technical field of laser cutting, and particularly relates to a safety protection mechanism and a laser cutting machine, which comprise a loading bin arranged on a shell of a laser cutting head, and a protection assembly which is arranged below the loading bin and can continuously keep a better residue splashing prevention effect and a smog collection effect, the protection assembly is provided with a connecting assembly which can be connected with external equipment so as to guarantee the safety protection effect and the service life of the protection assembly. According to the utility model, connection with external equipment is facilitated through the connecting assembly, so that external cooling liquid can continuously flow in the protection piece which plays a role in safety protection, and the temperature rise of the protection piece and the blocking piece which are in continuous contact with splashed residues is controllable, so that the service life of the protection assembly is ensured; the protection part which can conveniently lift below the loading bin through part of parts and the blocking part are flexibly attached to the workpiece to be cut under the condition of extremely little limitation, and therefore it is guaranteed that the protection assembly effectively limits the residue splashing range.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser cutting, and in particular relates to a safety protection mechanism and a laser cutting machine. Background Art

[0002] Laser cutting is a new cutting method with minimal thermal deformation and the best incision quality. During the laser cutting process, the high-temperature residues and smoke generated by the laser contacting the workpiece are easily injured by the surrounding workers. Therefore, it is necessary to set up a protective mechanism around the laser head to avoid disorderly splashing of residues and collect and purify the smoke.

[0003] A Chinese patent document with authorization announcement number CN219484570U discloses a laser cutting machine with a safety protection mechanism. The laser cutting head can be covered by an annular transparent cover when the laser cutting machine is running, thereby playing a certain protective role in preventing residue from splashing. At the same time, the smoke generated during cutting can be absorbed and purified by the lifting and rotating cleaning mechanism and the absorption and purification mechanism, and the residue generated during cutting can be swept up and absorbed.

[0004] However, in the prior art, when residues with a certain temperature continue to splash onto the safety protection mechanism, it is easy for the mechanism to be damaged by heating up due to continuous burning of the residues, and the lifting distance of the safety protection mechanism is restricted by other components, and the lifting range is relatively limited. When the laser cutting machine is far away from the workpiece to be cut, the residues are still easy to splash to the outside. Therefore, a safety protection mechanism and a laser cutting machine are proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a safety protection mechanism and a laser cutting machine.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A safety protection mechanism, comprising a loading bin arranged on a laser cutting head housing, a protection component which can continuously maintain a good effect of preventing residue splashing and collecting smoke is arranged below the loading bin, and a connection component which can be connected to an external device to ensure the safety protection effect and service life of the protection component is arranged on the protection component;

[0008] The protection assembly comprises a protection member which can be close to the workpiece to be cut to limit the splashing of debris and collect smoke, and a blocking member which can further limit the splashing range of the debris.

[0009] Preferably, the protective member comprises electric push rods fixedly mounted on both sides of the loading bin, and a protective ring is fixedly connected between the telescopic ends of the electric push rods.

[0010] Preferably, the blocking member comprises a partition net fixedly installed in the protective ring, and a splash plate is fixedly connected to the upper side of the protective ring.

[0011] Preferably: a hollow flow channel is integrally formed in the protective ring, and a semi-closed flow channel is arranged inside the hollow flow channel.

[0012] Preferably: a first connection hole is arranged on the upper side of the protective ring, and second connection holes are arranged on both sides of the protective ring.

[0013] Preferably: a screw hole is also provided on the upper side of the protective ring.

[0014] Preferably, the splash plate is a hollow truncated cone structure with a certain height.

[0015] A laser cutting machine comprises a safety protection mechanism according to any one of the above preferred contents.

[0016] The beneficial effects of the utility model are as follows: it is convenient to connect with external equipment through the connecting component, so that the external coolant can flow continuously in the protective part that plays a safety protection role, so as to ensure that the temperature rise of the protective part and the blocking part that are in continuous contact with the splashing residue can be controlled, thereby ensuring the service life of the protective component; it is convenient to use the protective part whose parts can be conveniently raised and lowered under the loading bin, and together with the blocking part, flexibly approach the workpiece to be cut with minimal restrictions, thereby ensuring that the protective component effectively limits the range of the residue splashing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0018] Figure 1 It is an isometric structural diagram of a safety protection mechanism and a laser cutting machine described in the utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of a safety protection mechanism and a laser cutting machine described in the utility model;

[0020] Figure 3 yes Figure 1 A schematic diagram of the structure of some parts enlarged in proportion;

[0021] Figure 4 yes Figure 3 Schematic diagram of the protective ring structure;

[0022] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure.

[0023] The following are the descriptions of the reference numerals:

[0024] 1. Loading bin; 2. Protection assembly; 201. Electric push rod; 202. Protection ring; 203. Partition net; 204. Splash plate; 205. Hollow flow channel; 206. Semi-enclosed flow channel; 207. First connecting hole; 208. Second connecting hole; 209. Screw hole; 3. Connection assembly; 301. Vacuum connector; 302. Drain connector; 303. Liquid inlet connector; 4. Laser cutting head. DETAILED DESCRIPTION

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0027] The present invention is further described below by way of embodiments in conjunction with the accompanying drawings.

[0028] like Figure 1-Figure 5 As shown, a safety protection mechanism includes a loading bin 1 arranged on the outer shell of a laser cutting head 4, a protection component 2 which can continuously maintain a good effect of preventing residue splashing and collecting smoke is arranged below the loading bin 1, and a connecting component 3 which can be connected with an external device to ensure the safety protection effect and service life of the protection component 2 is arranged on the protection component 2.

[0029] In this embodiment:

[0030] The protection component 2 includes a protection member that can be close to the workpiece to be cut to limit the splash of residue and collect smoke, and a blocking member that can further limit the range of residue splashing. The protection member includes an electric push rod 201 fixedly installed on both sides of the loading bin 1, and a protection ring 202 is fixedly connected between the telescopic ends of the electric push rod 201. The blocking member includes a partition net 203 fixedly installed in the protection ring 202, and a splash plate 204 is fixedly connected to the upper side of the protection ring 202. A hollow flow channel 205 is integrally formed in the protection ring 202, and a semi-enclosed flow channel 206 is arranged on the inner side of the hollow flow channel 205. A first connecting hole 207 is arranged on the upper side of the protection ring 202, and second connecting holes 208 are arranged on both sides of the protection ring 202. A screw hole 209 is also arranged on the upper side of the protection ring 202; the splash plate 204 is a hollow truncated cone structure with a certain height;

[0031] The height of the protective ring 202 and other parts relative to the loading bin 1 is flexibly adjusted by the electric push rod 201 with a fixed installation position but an unlimited telescopic range. The protective ring 202 provides an installation position for the partition 203, the splash plate 204 and the connecting component 3, and covers the part where the laser emitted by the laser cutting head 4 contacts the workpiece. The partition 203 prevents large-sized residues from entering the protective ring 202 and causing the semi-enclosed flow channel 206 to be blocked. The splash plate 204 further limits the range of residue splashing. The hollow flow channel 205 that allows the coolant to flow in the protective ring 202 can quickly cool the protective ring 202 and reduce the temperature of the partition 203 and the splash plate 204 at the same time. The semi-closed flow channel 206 that allows gas to pass can suck the smoke appearing in the central area of ​​the protective ring 202 from multiple directions after forming a negative pressure. The connecting component 3 can be stably connected to the protective ring 202 through the first connecting hole 207 and the second connecting hole 208, and the electric push rod 201 can be stably connected to the protective ring 202 through the screw hole 209.

[0032] In this embodiment:

[0033] The connecting component 3 includes an exhaust joint 301 fixedly connected above the protective ring 202, a drain joint 302 fixedly connected to one side of the protective ring 202, and a liquid inlet joint 303 fixedly connected to the other side of the protective ring 202; an air suction and purification device is connected to the outside through the exhaust joint 301, and a coolant circulation device is connected to the outside through the drain joint 302 and the liquid inlet joint 303, so as to form a negative pressure in the semi-closed flow channel 206, continuously suck the smoke in the center of the protective ring 202, and at the same time allow the coolant to continuously flow through the hollow flow channel 205, thereby taking away the heat transferred to the protective ring 202 and other components by the residue.

[0034] A laser cutting machine installs the above-mentioned safety protection mechanism on the outer shell of the laser cutting head 4 to provide protection for the workers when cutting the workpiece.

[0035] Working principle:

[0036] When the installation of this mechanism is completed and used for safety protection work related to laser cutting, the loading bin 1 needs to be connected to the robot arm or other adjustable position equipment so that the laser cutting head 4 and the protection component 2 can be easily moved relative to the workpiece to be cut, and the connecting component 3 needs to be connected to the external equipment so that the coolant can continuously flow in the hollow flow channel 205 and the negative pressure can be continuously formed in the semi-closed flow channel 206, thereby preventing the protection ring 202, the partition net 203, and the splash plate 204 from heating up when blocking the splashing of residues, and at the same time being able to fully suck the smoke generated by the cutting; in actual use, after adjusting the distance between the laser emitting end of the laser cutting head 4 and the workpiece, the distance between the protection ring 202 and the workpiece can be flexibly adjusted by the electric push rod 201 according to the safety protection needs, so that the protection ring 202 and other components can be close to the workpiece, thereby achieving the best safety protection effect under the premise that the service life of the protection component 2 is guaranteed.

[0037] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A safety protection mechanism, comprising a loading bin (1) arranged on a housing of a laser cutting head (4), characterized in that: A protective component (2) capable of continuously maintaining a good effect of preventing residue splashing and collecting smoke is provided below the loading bin (1); a connecting component (3) capable of connecting to an external device to ensure the safety protection effect and service life of the protective component (2) is provided on the protective component (2); The protection component (2) comprises a protection member that can be close to the workpiece to be cut to limit the splashing of residues and collect smoke, and a blocking member that can further limit the range of the splashing of residues.

2. A safety protection mechanism according to claim 1, characterized in that: The protective member comprises electric push rods (201) fixedly mounted on both sides of the loading bin (1), and a protective ring (202) is fixedly connected between the telescopic ends of the electric push rods (201).

3. A safety protection mechanism according to claim 2, characterized in that: The blocking member comprises a partition net (203) fixedly mounted in the protective ring (202), and a splash plate (204) is fixedly connected to the upper side of the protective ring (202).

4. A safety protection mechanism according to claim 3, characterized in that: A hollow flow channel (205) is integrally formed in the protective ring (202), and a semi-enclosed flow channel (206) is provided inside the hollow flow channel (205).

5. A safety protection mechanism according to claim 4, characterized in that: A first connection hole (207) is provided on the upper side of the protection ring (202), and second connection holes (208) are provided on both sides of the protection ring (202).

6. A safety protection mechanism according to claim 5, characterized in that: The upper side surface of the protective ring (202) is also provided with a screw hole (209).

7. A safety protection mechanism according to claim 3, characterized in that: The splash plate (204) is a hollow truncated cone structure with a certain height.

8. A laser cutting machine, characterized in that: The invention comprises the safety protection mechanism described in any one of claims 1 to 7.

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