Protective device for laser cutting head

Abstract

The utility model belongs to the technical field of laser cutting head protection, and particularly relates to a protection device for a laser cutting head, which comprises a cutting head body, a protection mechanism is arranged on the surface of the lower end of the cutting head body, the protection mechanism comprises a protection cylinder, and threads are arranged on the surface of the outer side wall of the protection cylinder. The outer surface of the protective cylinder is sleeved with a driving sleeve in a threaded mode, the surface of the outer side wall of the cutting head body is fixedly sleeved with a mounting ring, and the lower surface of the mounting ring is rotationally connected with the upper surface of the driving sleeve through a bearing. According to the protection device for the laser cutting head, the protection mechanism is installed on the surface of the cutting head body, a protection barrel in the protection mechanism is used for wrapping and protecting the lower end of the cutting head body, and meanwhile the protection barrel is driven through a driving sleeve, so that the inner wall of the protection barrel rubs on the surface of a cleaning pad; therefore, the inner wall of the protective cylinder can be cleaned and maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting head protection, in particular to a protective device for a laser cutting head. Background Art

[0002] A protective device for a laser cutting head (application number: 202322240127.8) disclosed on a Chinese patent website solves the technical problem that traditional laser cutting machines do not protect the cutting head, and the cutting head may be damaged by external forces when the machine is working or idle. However, the following problems still exist:

[0003] During actual use, not only is the surface of the cutting head of the laser cutting machine susceptible to collisions and damage, but a large amount of cutting debris is also generated when the cutting head is working. The debris can easily enter the protective equipment of the cutting head and rub against the cutting head and its surface when the protective equipment is in use, thereby causing wear on the cutting head and its surface, making it inconvenient to use. Utility Model Content

[0004] Based on the existing technical problems, the utility model proposes a protective device for a laser cutting head.

[0005] The utility model proposes a protective device for a laser cutting head, comprising a cutting head body, a protective mechanism installed on the lower end surface of the cutting head body, the protective mechanism comprising a protective tube, the outer wall surface of the protective tube is provided with a thread, the outer surface of the protective tube is threadedly sleeved with a drive sleeve, the outer wall surface of the cutting head body is fixedly sleeved with a mounting ring, and the lower surface of the mounting ring is rotatably connected to the upper surface of the drive sleeve through a bearing.

[0006] Preferably, a clamping rod is fixedly connected to the inner side wall of the protective tube, the cross section of the clamping rod is U-shaped, and an insertion rod is fixedly connected to the lower surface of the mounting ring.

[0007] Through the above technical solution, the protective tube is restricted by the clamping rod, thereby preventing the protective tube from tilting and deflecting.

[0008] Preferably, the lower end of the insertion rod is slidably connected to a limit rod, the outer surface of the limit rod is slidably connected to the inner side wall of the clamping rod, and the upper end surface of the insertion rod is slidably sleeved with a pressure spring.

[0009] Preferably, the upper end of the pressure spring is fixedly connected to the lower surface of the mounting ring, and the lower end of the pressure spring is fixedly connected to the upper end of the limit rod.

[0010] Through the above technical solution, the upper end of the limit rod is further fixed by utilizing the contraction of the pressure spring, thereby further limiting the deflection of the limit rod.

[0011] Preferably, an extrusion groove is provided on the upper side wall surface of the limiting rod, and an extrusion block is fixedly connected to the inner side wall of the upper end of the driving sleeve.

[0012] Through the above technical solution, the extrusion block extends into the extrusion groove when rotating and squeezes the inner wall of the extrusion groove, thereby driving the limit rod to move up and down.

[0013] Preferably, a cleaning pad is fixedly connected to the outer wall surface of the lower end of the cutting head body, and the cleaning pad is annular. The outer wall surface of the cleaning pad is slidably connected to the inner wall surface of the protective tube.

[0014] The beneficial effects of the present invention are:

[0015] 1. A protective mechanism is installed on the surface of the cutting head body. The protective tube in the protective mechanism is used to wrap and protect the lower end of the cutting head body. At the same time, the protective tube is driven by the driving sleeve so that the inner wall of the protective tube rubs against the surface of the cleaning pad, thereby having the characteristic of cleaning and maintaining the inner wall of the protective tube.

[0016] 2. When in use, the driving sleeve drives the extrusion block to extend into the extrusion groove and squeeze the inner wall of the extrusion groove, thereby driving the limit rod to move up and down, so that the upper end of the cleaning pad is moved and the lower end of the limit rod is squeezed, thereby facilitating the shaking off of impurities on the surface of the cleaning pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a protective device for a laser cutting head proposed in the present invention;

[0018] Figure 2 This is a cross-sectional view of the protective tube structure of a protective device for a laser cutting head proposed in the utility model;

[0019] Figure 3 This is a cross-sectional view of the mounting ring structure of a protective device for a laser cutting head proposed in the present invention;

[0020] Figure 4 This is a cross-sectional view of the drive sleeve structure of a protective device for a laser cutting head proposed in the utility model;

[0021] Figure 5 This is a three-dimensional diagram of the limit rod structure of a protective device for a laser cutting head proposed in the utility model.

[0022] In the figure: 1. Cutting head body; 2. Protective tube; 21. Drive sleeve; 22. Mounting ring; 23. Clamping rod; 24. Insertion rod; 25. Limit rod; 26. Pressure spring; 27. Extrusion block; 3. Cleaning pad. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Reference Figure 1-Figure 5 A protective device for a laser cutting head includes a cutting head body 1. A protective mechanism is installed on the lower end surface of the cutting head body 1. The protective mechanism includes a protective tube 2. The outer wall surface of the protective tube 2 is provided with a thread. The outer surface of the protective tube 2 is threadedly sleeved with a driving sleeve 21. The outer wall surface of the cutting head body 1 is fixedly sleeved with a mounting ring 22. The lower surface of the mounting ring 22 is rotatably connected to the upper surface of the driving sleeve 21 through a bearing.

[0025] In order to limit the protective tube 2, a clamping rod 23 is fixedly connected to the inner wall of the protective tube 2. The cross-section of the clamping rod 23 is U-shaped, and an insertion rod 24 is fixedly connected to the lower surface of the mounting ring 22. The clamping rod 23 is used to limit the protective tube 2, thereby preventing the protective tube 2 from tilting and deflecting. The lower end of the insertion rod 24 is slidably inserted into the limiting rod 25. The outer surface of the limiting rod 25 is slidably connected to the inner wall of the clamping rod 23, and the upper end surface of the insertion rod 24 is slidably sleeved with a pressure spring 26. The upper end of the pressure spring 26 is fixedly connected to the lower surface of the mounting ring 22, and the lower end of the pressure spring 26 is fixedly connected to the upper end of the limiting rod 25. The upper end of the limiting rod 25 is further fixed by the contraction of the pressure spring 26, thereby further limiting the deflection of the limiting rod 25.

[0026] By installing a protective mechanism on the surface of the cutting head body 1, the protective tube 2 in the protective mechanism is used to wrap and protect the lower end of the cutting head body 1, and the protective tube 2 is driven by the driving sleeve 21, so that the inner wall of the protective tube 2 rubs against the surface of the cleaning pad 3, thereby having the characteristic of cleaning and maintaining the inner wall of the protective tube 2.

[0027] In order to facilitate long-term maintenance, an extrusion groove is provided on the upper side wall surface of the limit rod 25, and an extrusion block 27 is fixedly connected to the upper inner wall of the driving sleeve 21. The extrusion block 27 extends into the extrusion groove during rotation and squeezes the inner wall of the extrusion groove, thereby driving the limit rod 25 to move up and down. A cleaning pad 3 is fixedly connected to the outer side wall surface of the lower end of the cutting head body 1. The cleaning pad 3 is in a circular ring shape, and the outer side wall surface of the cleaning pad 3 is slidingly connected to the inner side wall surface of the protective tube 2.

[0028] When in use, the driving sleeve 21 drives the extrusion block 27 to extend into the extrusion groove and squeeze the inner wall of the extrusion groove, thereby driving the limiting rod 25 to move up and down, so that the upper end of the cleaning pad 3 is moved and the lower end of the limiting rod 25 is squeezed, thereby facilitating the shaking off of impurities on the surface of the cleaning pad 3.

[0029] Working principle:

[0030] When in use, the driving sleeve 21 is rotated, and the driving sleeve 21 drives the protective tube 2, and the limiting rod 25 and the clamping rod 23 hinder the rotation of the protective tube 2. The protective tube 2 moves downward under the action of the driving sleeve 21, the limiting rod 25 and the clamping rod 23, and at the same time, the cleaning pad rubs and cleans the inner wall of the protective tube 2;

[0031] At the end of use, the drive sleeve 21 is rotated in the opposite direction, and the drive sleeve 21 drives the protective tube 2 to move upward. At the same time, the drive sleeve 21 drives the extrusion block 27 to rotate, and the extrusion block 27 extends into the extrusion groove and squeezes the inner wall of the extrusion groove. The limiting rod 25 moves downward, the pressure spring 26 is stretched, and a part of the insertion rod 24 is exposed at the upper end of the limiting rod 25. The lower end of the limiting rod 25 collides with the upper surface of the cleaning pad, and impurities on the surface of the cleaning pad are shaken off.

[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A protective device for a laser cutting head, comprising a cutting head body (1), characterized in that: A protective mechanism is installed on the lower end surface of the cutting head body (1), and the protective mechanism includes a protective tube (2). The outer wall surface of the protective tube (2) is provided with a thread. The outer surface of the protective tube (2) is threadedly sleeved with a driving sleeve (21). The outer wall surface of the cutting head body (1) is fixedly sleeved with a mounting ring (22). The lower surface of the mounting ring (22) is rotatably connected to the upper surface of the driving sleeve (21) through a bearing.

2. A protective device for a laser cutting head according to claim 1, characterized in that: The inner side wall of the protective tube (2) is fixedly connected to a clamping rod (23), the cross section of the clamping rod (23) is U-shaped, and the lower surface of the mounting ring (22) is fixedly connected to an insertion rod (24).

3. A protective device for a laser cutting head according to claim 2, characterized in that: The lower end of the insertion rod (24) is slidably connected to a limiting rod (25), the outer surface of the limiting rod (25) is slidably connected to the inner side wall of the clamping rod (23), and the upper end surface of the insertion rod (24) is slidably sleeved with a pressure spring (26).

4. A protective device for a laser cutting head according to claim 3, characterized in that: The upper end of the pressure spring (26) is fixedly connected to the lower surface of the mounting ring (22), and the lower end of the pressure spring (26) is fixedly connected to the upper end of the limit rod (25).

5. The protective device for a laser cutting head according to claim 4, characterized in that: An extrusion groove is provided on the upper side wall surface of the limiting rod (25), and an extrusion block (27) is fixedly connected to the inner side wall of the upper end of the driving sleeve (21).

6. The protective device for a laser cutting head according to claim 5, characterized in that: A cleaning pad (3) is fixedly connected to the outer wall surface of the lower end of the cutting head body (1); the cleaning pad (3) is annular, and the outer wall surface of the cleaning pad (3) is slidably connected to the inner wall surface of the protective tube (2).

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