Compact rotating shaft assembly for connecting laser cutting head

Abstract

The utility model discloses a compact rotating shaft assembly used for connecting a laser cutting head, the compact rotating shaft assembly comprises a rotating shaft C and a swing shaft B. The rotating shaft C comprises a first DD motor and a rotating drag chain wound outside the first DD motor, the swing shaft B comprises a second DD motor perpendicular to the rotating shaft C, and the rotating drag chain is wound outside the second DD motor. The first DD motor and the second DD motor can serve as a driving device and a light guide device at the same time, and the rotating drag chain is used for containing water, electricity and gas pipelines. According to the rotating shaft assembly, the driving device, the light guide cylinder and the rotating drag chain are integrated into the same height space through the DD motor, the overall height of the rotating shaft assembly is greatly reduced, and therefore the rotating shaft assembly used for being connected with a laser cutting head in three-dimensional laser machining equipment is optimized, and the optimized rotating shaft assembly is simple and compact in structure and convenient to use. The rotating shaft assembly can also be applied to working scenes with limited space, and is suitable for popularization and application.

Description

Technical Field

[0001] The utility model relates to the technical field of laser processing, in particular to a compact rotating shaft component used for connecting a laser cutting head. Background Art

[0002] In 3D laser processing equipment, a rotating axis assembly is usually used to connect the laser cutting head and the machine tool body, such as Figure 1-2 As shown, the rotating shaft assembly includes a rotating shaft 7 and a swinging shaft 8. The rotating shaft motor 71 drives the rotating shaft 7 to rotate through a synchronous belt, and the swinging shaft motor 81 drives the swinging shaft 8 to swing through a synchronous belt. In order to make the rotating shaft assembly and the laser cutting head 3 work normally, there are generally multiple water, electricity and gas pipelines that are sequentially connected to the rotating shaft 7, the swinging shaft 8 and the laser cutting head 3. The water, electricity and gas pipelines in the prior art are generally introduced into the rotating shaft 7 through a rotating drag chain 13. In order to set the rotating drag chain 13, it is necessary to add a section of light guide tube 9 above the rotating shaft 7. The rotating drag chain 13 is wound around the outside of the light guide tube 9 and then introduced into the rotating shaft 7. Since a section of light guide tube 9 is added above the rotating shaft 7, the overall height of the rotating shaft assembly is relatively high. When the installation height of the rotating shaft assembly is limited, this type of rotating shaft assembly that increases the height of the light guide tube 9 too high is not applicable. Utility Model Content

[0003] The utility model aims to provide a compact rotating shaft assembly for connecting a laser cutting head in view of the problems existing in the prior art.

[0004] The purpose of the utility model is solved by the following technical solutions:

[0005] A compact rotating axis assembly for connecting a laser cutting head, characterized in that: the compact rotating axis assembly includes a rotating axis C axis and a swinging axis B axis, wherein the rotating axis C axis includes a first DD motor and a rotating drag chain wound around the outside of the first DD motor, and the swinging axis B axis includes a second DD motor arranged perpendicular to the rotating axis C axis, the first DD motor and the second DD motor can both serve as a driving device and a light guiding device at the same time, and the rotating drag chain is used to accommodate water, electricity and gas pipelines.

[0006] The first DD motor in the rotating axis C and the second DD motor in the swinging axis B are connected through an L-shaped plate, the first DD motor rotating part of the first DD motor is fixedly connected to the horizontal section of the L-shaped plate, and the second DD motor fixing part of the second DD motor is fixedly connected to the vertical section of the L-shaped plate.

[0007] The first DD motor axial through hole on the first DD motor is coaxially arranged with the first through hole on the horizontal section of the L-shaped plate.

[0008] The second axial through hole of the second DD motor is coaxially arranged with the second through hole on the vertical section of the L-shaped plate.

[0009] The first DD motor fixing part of the first DD motor is connected to the machine tool body.

[0010] The second DD motor rotating part of the second DD motor is fixedly connected to the input end of the second mirror base.

[0011] A first mirror base is arranged inside the fold angle of the L-shaped plate. The input end of the first mirror base is docked with the first through hole on the horizontal section of the L-shaped plate, and the output end of the first mirror base is docked with the second through hole on the vertical section of the L-shaped plate.

[0012] A laser reflector is arranged on the first mirror base.

[0013] A second mirror base is arranged between the second DD motor and the laser cutting head. The input end of the second mirror base is fixedly connected to the second DD motor rotating part of the second DD motor, and the output end of the second mirror base is fixedly connected to the laser cutting head.

[0014] A laser reflector is arranged on the second mirror base.

[0015] The present utility model has the following advantages compared with the prior art:

[0016] The present utility model integrates the driving device, the light guide tube and the rotating drag chain into the same height space through the DD motor, greatly reducing the overall height of the rotating shaft assembly, thereby optimizing the rotating shaft assembly for connecting the laser cutting head in the three-dimensional laser processing equipment. The optimized rotating shaft assembly has a simple and compact structure, enabling the rotating shaft assembly to be applied in a working scenario with limited space and being suitable for popularization and use. Description of the Drawings

[0017] Att Figure 1 Is an axonometric view of the rotating shaft assembly in the prior art;

[0018] Att Figure 2 Is the front view of the rotating shaft assembly in the prior art;

[0019] Att Figure 3 Is a schematic structural diagram of the compact rotating shaft assembly for connecting the laser cutting head provided by the present utility model;

[0020] Att Figure 4 Is an axonometric view of the compact rotating shaft assembly for connecting the laser cutting head provided by the present utility model with the B-axis housing hidden;

[0021] Att Figure 5 Is an axonometric view of the first DD motor provided by the present utility model;

[0022] AttFigure 6 Isometric view of the second DD motor provided by the present utility model;

[0023] Appendix Figure 7 Isometric view of the L-shaped plate provided by the present utility model.

[0024] Wherein: 1 - the first DD motor; 11 - the first DD motor fixing part; 12 - the first DD motor rotating part; 13 - the rotating drag chain; 14 - the first DD motor axial through hole; 2 - the second DD motor; 21 - the second DD motor fixing part; 22 - the second DD motor rotating part; 23 - the second DD motor axial through hole; 3 - the laser cutting head; 4 - the L-shaped plate; 41 - the horizontal section of the L-shaped plate; 411 - the first through hole; 42 - the vertical section of the L-shaped plate; 422 - the second through hole; 5 - the first mirror base; 6 - the second mirror base; 7 - the rotating shaft; 71 - the rotating shaft motor; 8 - the swinging shaft; 81 - the swinging shaft motor; 9 - the light guide tube. Specific embodiments

[0025] Now, the exemplary embodiments will be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present utility model will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0026] The terms "a", "an", "the", and "said" are used to denote the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to mean an open inclusion and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc.

[0027] As Figure 3-7 shown: A compact rotating shaft assembly for connecting a laser cutting head, the compact rotating shaft assembly includes a rotating shaft C-axis and a swinging shaft B-axis, wherein the rotating shaft C-axis includes a first DD motor 1 and a rotating drag chain 13 wound around the outside of the first DD motor 1, the swinging shaft B-axis includes a second DD motor 2 disposed perpendicular to the rotating shaft C-axis, both the first DD motor 1 and the second DD motor 2 can simultaneously serve as a driving device and a light guiding device, and the rotating drag chain 13 is used to accommodate water, electricity, and gas pipelines.

[0028] In terms of the installation structure, the first DD motor 1 in the rotating shaft C-axis and the second DD motor 2 in the swinging shaft B-axis are connected by an L-shaped plate 4. The first DD motor fixing part 11 of the first DD motor 1 is connected to the machine tool body, and the first DD motor rotating part 12 of the first DD motor 1 is fixedly connected to the horizontal section 41 of the L-shaped plate 4. The second DD motor fixing part 21 of the second DD motor 2 is fixedly connected to the vertical section 42 of the L-shaped plate 4, and the second DD motor rotating part 22 of the second DD motor 2 is fixedly connected to the input end of the second mirror seat 6. At this time, the first axial through hole 14 on the first DD motor 1 is coaxially arranged with the first through hole 411 on the horizontal section 41 of the L-shaped plate 4, and the second axial through hole 23 on the second DD motor 2 is coaxially arranged with the second through hole 422 on the vertical section 42 of the L-shaped plate 4.

[0029] In terms of the installation of the reflecting mirror, a first mirror seat 5 for installing a laser reflecting mirror is arranged inside the fold angle of the L-shaped plate 4. The input end of the first mirror seat 5 is docked with the first through hole 411 on the horizontal section 41 of the L-shaped plate 4, and the output end of the first mirror seat 5 is docked with the second through hole 422 on the vertical section 42 of the L-shaped plate 4. A second mirror seat 6 for installing a laser reflecting mirror is arranged between the second DD motor 2 and the laser cutting head 3. The input end of the second mirror seat 6 is fixedly connected to the second DD motor rotating part 22 of the second DD motor 2, and the output end of the second mirror seat 6 is fixedly connected to the laser cutting head 3.

[0030] The following further elaborates on the compact rotating shaft assembly for connecting a laser cutting head provided by the present application through specific embodiments.

[0031] As Figure 3-7 shown, a compact rotating shaft assembly for connecting a laser cutting head, the compact rotating shaft assembly includes a rotating shaft C-axis and a swinging shaft B-axis. The rotating shaft C-axis includes a first DD motor 1 and a rotating drag chain 13 wound around it. The swinging shaft B-axis includes a second DD motor 2 perpendicular to the rotating shaft C-axis. The rotating drag chain 13 is used to accommodate water, electricity, and gas pipelines. The laser cutting head 3 is connected to the output end of the swinging shaft B-axis. The control system drives the laser cutting head 3 to rotate and / or swing by controlling the linkage of the rotating shaft C-axis and the swinging shaft B-axis. Since there is an axial through hole in the DD motor that can be used as a laser path, the DD motor is equivalent to a driving device with a built-in light guide tube. Thus, the driving device, the light guide tube, and the rotating drag chain are integrated into the same height space through the DD motor, reducing the overall height of the rotating shaft assembly by about 50% and making the structure more compact.

[0032] Furthermore, the first DD motor 1 in the rotation axis C-axis and the second DD motor 2 in the swing axis B-axis are connected by an L-shaped plate 4. The first DD motor fixing part 11 is connected to the machine tool body (not shown), the first DD motor rotating part 12 is fixedly connected to the horizontal section 41 of the L-shaped plate, and the first through hole 411 on the horizontal section 41 of the L-shaped plate is correspondingly arranged with the first DD motor rotating part 12; the second DD motor fixing part 21 in the swing axis B-axis is fixedly connected to the vertical section 42 of the L-shaped plate, and the second through hole 422 on the vertical section 42 of the L-shaped plate is correspondingly arranged with the second DD motor fixing part 21.

[0033] Furthermore, a first mirror seat 5 for installing a laser reflector is arranged inside the fold angle of the L-shaped plate 4. The input end of the first mirror seat 5 is docked with the first through hole 411 on the horizontal section 41 of the L-shaped plate, and the output end of the first mirror seat 5 is docked with the second through hole 422 on the vertical section 42 of the L-shaped plate; a second mirror seat 6 for installing a laser reflector is arranged between the second DD motor 2 and the laser cutting head 3. The input end of the second mirror seat 6 is fixedly connected to the second DD motor rotating part 22, and the output end of the second mirror seat 6 is fixedly connected to the laser cutting head 3.

[0034] When the compact rotation axis assembly is in use, the laser beam conducted through the axial through hole 14 of the first DD motor enters the first mirror seat 5 through the first through hole 411 on the L-shaped plate 4. After being reflected by the laser reflector on the first mirror seat 5, it enters the axial through hole 23 of the second DD motor through the second through hole 422 on the L-shaped plate 4, and then enters the second mirror seat 6. After being reflected by the laser reflector on the second mirror seat 6, it enters the laser cutting head 3, thereby completing the laser conduction.

[0035] The utility model integrates the driving device, the light guide cylinder and the rotating drag chain into the same height space through the DD motor, greatly reducing the overall height of the rotation axis assembly, thereby optimizing the rotation axis assembly used for connecting the laser cutting head in the three-dimensional laser processing equipment. The optimized rotation axis assembly has a simple and compact structure, enabling the rotation axis assembly to be applied in a working scenario with limited space and being suitable for popularization and use.

[0036] In the embodiments of the present utility model, the term "plurality" refers to two or more, unless otherwise clearly defined. Terms such as "installation", "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0037] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present utility model.

[0038] In the description of this specification, the description of terms such as "one embodiment" and "one preferred embodiment" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0039] The above embodiments are only for illustrating the technical idea of the present utility model, and the protection scope of the present utility model cannot be limited thereby. Any modification made on the basis of the technical solution according to the technical idea proposed by the present utility model falls within the protection scope of the present utility model; the technologies not involved in the present utility model can be realized through the prior art.

Claims

1. A compact rotating shaft assembly for connecting a laser cutting head, characterized in that: The compact rotating shaft assembly includes a rotating shaft C-axis and a swinging shaft B-axis. The rotating shaft C-axis includes a first DD motor (1) and a rotating cable chain (13) wound around the outside of the first DD motor (1). The swinging shaft B-axis includes a second DD motor (2) arranged perpendicular to the rotating shaft C-axis. Both the first DD motor (1) and the second DD motor (2) can simultaneously serve as a driving device and a light guiding device. The rotating cable chain (13) is used to accommodate water, electricity, and gas pipelines.

2. The compact rotary shaft assembly for connecting a laser cutting head according to claim 1, characterized in that: The first DD motor (1) in the rotating shaft C-axis and the second DD motor (2) in the swinging shaft B-axis are connected by an L-shaped plate (4). The first DD motor rotating part (12) of the first DD motor (1) is fixedly connected to the horizontal section (41) of the L-shaped plate (4), and the second DD motor fixing part (21) of the second DD motor (2) is fixedly connected to the vertical section (42) of the L-shaped plate (4).

3. The compact rotary shaft assembly for connecting a laser cutting head according to claim 2, characterized in that: The first DD motor axial through hole (14) on the first DD motor (1) is coaxially arranged with the first through hole (411) on the horizontal section (41) of the L-shaped plate.

4. The compact rotary shaft assembly for connecting a laser cutting head according to claim 2, wherein: The second DD motor axial through hole (23) on the second DD motor (2) is coaxially arranged with the second through hole (422) on the vertical section (42) of the L-shaped plate.

5. The compact rotary shaft assembly for connecting a laser cutting head according to claim 2, characterized in that: The first DD motor fixing part (11) of the first DD motor (1) is connected to the machine tool body.

6. The compact rotary shaft assembly for connecting a laser cutting head according to claim 2, characterized in that: The second DD motor rotating part (22) of the second DD motor (2) is fixedly connected to the input end of the second mirror seat (6).

7. The compact rotating shaft assembly for connecting a laser cutting head according to any one of claims 2-6, characterized in that: A first mirror seat (5) is arranged inside the fold angle of the L-shaped plate (4). The input end of the first mirror seat (5) is docked with the first through hole (411) on the horizontal section (41) of the L-shaped plate, and the output end of the first mirror seat (5) is docked with the second through hole (422) on the vertical section (42) of the L-shaped plate.

8. The compact rotary shaft assembly for connecting a laser cutting head according to claim 7, characterized in that: A laser reflector is arranged on the first mirror seat (5).

9. The compact rotary shaft assembly for connecting a laser cutting head according to any one of claims 1-6, characterized in that: A second mirror seat (6) is arranged between the second DD motor (2) and the laser cutting head (3). The input end of the second mirror seat (6) is fixedly connected to the second DD motor rotating part (22) of the second DD motor (2), and the output end of the second mirror seat (6) is fixedly connected to the laser cutting head (3).

10. The compact rotary shaft assembly for connecting a laser cutting head according to claim 9, characterized in that: A laser reflector is arranged on the second mirror seat (6).

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