Laser cutting machine

Abstract

The utility model discloses a laser cutting machine which comprises a lathe bed, the lathe bed comprises a base and supporting tables vertically arranged at the two ends of the base respectively, a movable table top component used for bearing a workpiece is installed on the base, and the laser cutting machine further comprises a static beam, a suspension beam, a Z-axis component and a laser cutting head. The two ends of the static beam are fixed to the tops of the supporting tables at the two ends of the base correspondingly, the hanging beam is hung at the bottom of the static beam and can move back and forth in the first preset direction through the Y-axis linear module, and the Z-axis component is installed on the side portion of the hanging beam and can move back and forth in the second preset direction through the X-axis linear module. The laser cutting head is installed on the Z-axis component and can move back and forth in the third preset direction through the Z-axis linear module, and every two of the first preset direction, the second preset direction and the third preset direction are perpendicular to each other. The laser cutting machine is good in dynamic performance, high in cutting precision, simple and compact in structure, low in implementation difficulty, low in manufacturing cost and high in practicability.

Description

Technical Field

[0001] The present application relates to the field of laser cutting technology, and in particular to a laser cutting machine. Background Art

[0002] Laser cutting machine is to focus the laser light 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, causing the workpiece to reach the melting point or boiling point, and 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, thus achieving the purpose of cutting.

[0003] Existing laser cutting machines for cutting sheet metal workpieces are usually equipped with a gantry structure, which includes a crossbeam and a cutting head slidably connected to the crossbeam. The longer the sheet metal workpiece is, the larger the span of the crossbeam is, and the higher the equipment manufacturing cost is. At the same time, the dynamics of the cutting head will be reduced when performing three-dimensional motion cutting, and the overall stability is insufficient, which will reduce the cutting accuracy of the cutting head. Utility Model Content

[0004] The present application provides a laser cutting machine to solve at least one of the above-mentioned technical problems.

[0005] The technical solution adopted in this application is:

[0006] A laser cutting machine comprises a bed, the bed comprises a base and support tables respectively erected at two ends of the base, a movable table component for carrying a workpiece is installed on the base, the laser cutting machine also comprises a static beam, a suspension beam, a Z-axis component and a laser cutting head, the two ends of the static beam are respectively fixed to the top of the support tables at two ends of the base, the suspension beam is suspended at the bottom of the static beam and can move back and forth along a first preset direction through a Y-axis linear module, the Z-axis component is installed on the side of the suspension beam and can move back and forth along a second preset direction through an X-axis linear module, the laser cutting head is installed on the Z-axis component and can move back and forth along a third preset direction through the Z-axis linear module, and the first preset direction, the second preset direction and the third preset direction are perpendicular to each other.

[0007] The laser cutting machine provided in this application also includes the following additional technical features:

[0008] The suspension beam includes a suspension part and a bearing part from top to bottom, the suspension beam is suspended at the bottom of the static beam through the suspension part, the length of the bearing part extends along the second preset direction, and the Z-axis component is installed on the side of the bearing part.

[0009] The Z-axis component includes a first mounting plate, and the X-axis linear module includes an X-axis drive motor, an X-axis reducer, an X-axis transmission gear and an X-axis transmission rack. The X-axis drive motor is installed on the first mounting plate, the X-axis reducer is connected to the output shaft of the X-axis drive motor, the X-axis transmission gear is connected to the power output end of the X-axis reducer, the X-axis transmission rack is arranged on the bearing portion and extends along the second preset direction. When the X-axis drive motor is in operation, the Z-axis component is driven to move back and forth along the second preset direction through the meshing transmission of the X-axis transmission gear and the X-axis transmission rack.

[0010] The Z-axis component includes an X-axis slider, and the bearing portion is provided with an X-axis slide rail extending along the second preset direction. The sliding cooperation between the X-axis slider and the X-axis slide rail guides the Z-axis component to move back and forth along the second preset direction.

[0011] A protective component for covering the X-axis transmission rack and the X-axis slide rail is installed on the bearing portion, and the protective component includes a first protective cover and a second protective cover respectively connected to both sides of the Z-axis component, and the first protective cover and the second protective cover are both configured as a pleated structure that can be extended or folded and are respectively connected to the two ends of the bearing portion, and when one of the first protective cover and the second protective cover is extended with the movement of the Z-axis component, the other of the first protective cover is folded with the movement of the Z-axis component.

[0012] The Z-axis component includes a second mounting plate, the laser cutting head is mounted on the second mounting plate, and the Z-axis linear module includes a Z-axis drive motor arranged on the Z-axis component and a screw nut motion pair driven by the Z-axis drive motor to drive the second mounting plate to move back and forth along the third preset direction.

[0013] The shell of the laser cutting head is integrally constructed as a right-angle structure connected by a horizontal portion extending in a horizontal direction and a vertical portion extending in a vertical direction, and the optical fiber of the laser cutting head enters the horizontal portion in a horizontal direction.

[0014] The Y-axis linear module includes a Y-axis drive motor, a Y-axis reducer, a Y-axis transmission gear and a Y-axis transmission rack. The Y-axis drive motor is installed on the suspension beam, the Y-axis reducer is connected to the output shaft of the Y-axis drive motor, the Y-axis transmission gear is connected to the power output end of the Y-axis reducer, the Y-axis transmission rack is arranged at the bottom of the static beam and extends along the first preset direction. When the Y-axis drive motor is in operation, the suspension beam is driven to move back and forth along the first preset direction through the meshing transmission of the Y-axis transmission gear and the Y-axis transmission rack.

[0015] A Y-axis slider is installed on the top of the suspension beam, and a Y-axis slide rail extending along the first preset direction is provided at the bottom of the static beam. The sliding cooperation between the Y-axis slider and the Y-axis slide rail guides the suspension beam to move back and forth along the first preset direction.

[0016] The laser cutting machine also includes a protective shell surrounding the bed, and the protective shell is provided with a lifting door that can be lifted and moved.

[0017] Due to the adoption of the above technical solution, the technical effects achieved by this application include at least:

[0018] 1. The laser cutting machine proposed in this application, the static beam is fixed on the top of the support platform as a whole, forming the bearing structure of the suspension beam, the Z-axis component is arranged on the suspension beam, the laser cutting head is arranged on the Z-axis component, the suspension beam moves back and forth along the first preset direction through the Y-axis linear module, and then drives the laser cutting head to move back and forth along the first preset direction, the Z-axis component moves back and forth along the second preset direction through the X-axis linear module, and then drives the laser cutting head to move back and forth along the second preset direction, and the laser cutting head itself can move back and forth along the third preset direction through the Z-axis linear module, so as to realize the three-dimensional cutting function of the laser cutting head. For the large-span static beam, because it is fixed on the support platform, it has a stable bearing effect on the suspension beam, and the suspension beam is not affected by the large span of the static beam. The reciprocating movement of the Z-axis component in the second preset direction and the reciprocating movement of the laser cutting head in the third preset direction are more stable, and the dynamic performance during the operation of the equipment is better, which helps to improve the cutting accuracy of the laser cutting head. The laser cutting machine of this scheme has a simple and compact structure, low implementation difficulty, low manufacturing cost, can be mass-produced, and has high practicality.

[0019] 2. The suspension beam includes a suspension part and a bearing part from top to bottom. The suspension beam can be stably suspended at the bottom of the static beam through the suspension part and realize reciprocating movement in the first preset direction through the cooperation between the suspension part and the static beam. The suspension part also lengthens the distance between the bearing part and the static beam, providing sufficient installation space for the Z-axis component in the vertical direction and sufficient movement space for the laser cutting head in the vertical direction. The length of the bearing part extends along the second preset direction, providing sufficient structural support for the reciprocating movement of the Z-axis component along the second preset direction, so that the laser cutting head has a longer width coverage in the second preset direction.

[0020] 3. The overall structure of the shell of the laser cutting head is a right-angle structure connected by a horizontal part extending in the horizontal direction and a vertical part extending in the vertical direction. The optical fiber of the laser cutting head enters the horizontal part in the horizontal direction, and the horizontal part of the laser cutting head is structurally expanded in the horizontal direction, which reduces its height dimension in the vertical direction. After installation, the space occupied in the vertical direction is small, which helps to release the already limited space pressure in the vertical direction. The overall structure formed by the suspension beam, Z-axis component and laser cutting head is more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 Assembly of the laser cutting machine provided in the embodiment of the present application Figure 1 ;

[0023] Figure 2 Assembly of the laser cutting machine provided in the embodiment of the present application Figure 2 ;

[0024] Figure 3 Assembly of the laser cutting machine provided in the embodiment of the present application Figure 3 ;

[0025] Figure 4 Assembly of the laser cutting machine provided in the embodiment of the present application Figure 4 ;

[0026] Figure 5 Assembly of the laser cutting machine provided in the embodiment of the present application Figure 5 ;

[0027] Figure 6 Assembly of the laser cutting machine provided in the embodiment of the present application Figure 6 .

[0028] List of parts and reference numerals:

[0029] 11 bed, 111 base, 112 support table, 12 table top components, 13 static beam, 14 suspension beam, 141 suspension part, 142 load-bearing part, 15 laser cutting head, 151 horizontal part, 152 vertical part, 153 optical fiber, 16 first mounting plate, 17 X-axis drive motor, 18 X-axis reducer, 19 X-axis transmission rack, 20 X-axis slider, 21 X-axis slide rail, 22 first protective cover, 23 second protective cover, 24 second mounting plate, 25 Z-axis drive motor, 26 Y-axis drive motor, 27 Y-axis reducer, 28 Y-axis transmission rack, 29 Y-axis slider, 30 Y-axis slide rail, 31 protective shell, 311 lifting door, 32 Z-axis components. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0032] In addition, in the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "lateral", "longitudinal", etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0035] In the embodiment of the present application, a laser cutting machine is provided. For the convenience of explanation and understanding, the following contents provided in the present application are all described based on the illustrated product structure. Of course, those skilled in the art can understand that the above structure is only used as a specific example and schematic description, and cannot constitute a specific limitation on the technical solution provided in the present application.

[0036] like Figures 1 to 6 As shown, a laser cutting machine provided in the present application includes a bed 11, the bed 11 includes a base 111 and support platforms 112 respectively vertically arranged at both ends of the base 111, a movable table component 12 for carrying a workpiece is installed on the base 111, the laser cutting machine also includes a static beam 13, a suspension beam 14, a Z-axis component 32 and a laser cutting head 15, the two ends of the static beam 13 are respectively fixed on the top of the support platforms 112 at both ends of the base 111, the suspension beam 14 is suspended at the bottom of the static beam 13 and can move back and forth along a first preset direction through a Y-axis linear module, the Z-axis component 32 is installed on the side of the suspension beam 14 and can move back and forth along a second preset direction through an X-axis linear module, the laser cutting head 15 is installed on the Z-axis component 32 and can move back and forth along a third preset direction through the Z-axis linear module, and the first preset direction, the second preset direction and the third preset direction are perpendicular to each other.

[0037] Specifically, the static beam 13 can be installed on the top of the support platform 112 by bolt connection to ensure the reliable stability of the static beam 13 assembly. The static beam 13 can be selected as a plate-tube welding structure. The table component 12 can be provided with a guide wheel, and a hexagonal guide rail is provided on the base 111. The guide wheel cooperates with the hexagonal guide rail. The table component 12 is moved forward and backward through a chain transmission system to meet the loading and unloading requirements. After the sheet workpiece to be processed is loaded onto the table component 12, laser cutting can be achieved using a laser cutting head 15. Figure 1 In the figure, a double-headed arrow Y schematically represents a first preset direction on the horizontal plane, a double-headed arrow X represents a second preset direction on the horizontal plane, and a double-headed arrow Z represents a third preset direction perpendicular to both the first preset direction and the second preset direction, that is, a vertical direction.

[0038] In the laser cutting machine of the present application, the static beam 13 is fixed as a whole on the top of the support platform 112, forming the bearing structure of the suspension beam 14, the Z-axis component 32 is arranged on the suspension beam 14, and the laser cutting head 15 is arranged on the Z-axis component 32. The suspension beam 14 moves back and forth along the first preset direction through the Y-axis linear module, thereby driving the laser cutting head 15 to move back and forth along the first preset direction, and the Z-axis component 32 moves back and forth along the second preset direction through the X-axis linear module, thereby driving the laser cutting head 15 to move back and forth along the second preset direction. The laser cutting head 15 itself can move back and forth along the third preset direction through the Z-axis linear module, thereby realizing the three-dimensional cutting function of the laser cutting head 15. For the large-span static beam 13, because it is fixed on the support platform 112, it has a stable bearing effect on the suspension beam 14, and the suspension beam 14 is not affected by the large span of the static beam 13. The reciprocating movement of the Z-axis component 32 in the second preset direction and the reciprocating movement of the laser cutting head 15 in the third preset direction are more stable, and the dynamic performance during the operation of the equipment is better, which helps to improve the cutting accuracy of the laser cutting head 15. The laser cutting machine of this solution has a simple and compact structure, is easy to implement, has a low manufacturing cost, can be mass-produced, and has high practicality.

[0039] As a preferred implementation of the present application, Figure 2 and Figure 3 As shown, the suspension beam 14 includes a suspension portion 141 and a bearing portion 142 from top to bottom. The suspension beam 14 is suspended at the bottom of the static beam 13 through the suspension portion 141. The length of the bearing portion 142 extends along the second preset direction, and the Z-axis component 32 is installed on the side of the bearing portion 142. It can be understood by those skilled in the art that the suspension beam 14 can be stably suspended at the bottom of the static beam 13 through the suspension portion 141 and realize the reciprocating movement in the first preset direction through the cooperation between the suspension portion 141 and the static beam 13. The suspension portion 141 also lengthens the distance between the bearing portion 142 and the static beam 13, providing sufficient installation space for the Z-axis component 32 in the vertical direction and sufficient movement space for the movement of the laser cutting head 15 in the vertical direction. The length of the bearing portion 142 extends along the second preset direction, providing sufficient structural support for the reciprocating movement of the Z-axis component 32 along the second preset direction, so that the width coverage of the laser cutting head 15 in the second preset direction is longer.

[0040] Furthermore, if Figure 2 , Figure 3 and Figure 4As shown, the Z-axis component 32 includes a first mounting plate 16, and the X-axis linear module includes an X-axis drive motor 17, an X-axis reducer 18, an X-axis transmission gear and an X-axis transmission rack 19. The X-axis drive motor 17 is mounted on the first mounting plate 16, and the X-axis reducer 18 is connected to the output shaft of the X-axis drive motor 17. The X-axis transmission gear is connected to the power output end of the X-axis reducer 18. The X-axis transmission rack 19 is arranged on the bearing portion 142 and extends along the second preset direction. When the X-axis drive motor 17 is in operation, the Z-axis component 32 is driven to move back and forth along the second preset direction through the meshing transmission of the X-axis transmission gear and the X-axis transmission rack 19. It can be understood by those skilled in the art that the X-axis linear module is a combination of a motor and a reducer. The X-axis drive motor 17 is mainly used to output a high-speed, low-torque output speed. The main function of the X-axis reducer 18 is to reduce the output speed and increase the torque. Therefore, the X-axis linear module can effectively improve the torque output and load capacity to achieve an ideal transmission effect. Specifically, when the X-axis drive motor 17 is running, the power is output to the X-axis transmission gear through the X-axis reducer 18, driving the X-axis transmission gear to engage with the X-axis transmission rack 19 for transmission, so that the Z-axis component 32 carries the laser cutting head 15 to move relative to the bearing part 142 along the second preset direction.

[0041] Furthermore, if Figure 2 , Figure 3 and Figure 4 As shown, the Z-axis component 32 includes an X-axis slider 20, and the bearing portion 142 is provided with an X-axis slide rail 21 extending along the second preset direction, and the sliding cooperation between the X-axis slider 20 and the X-axis slide rail 21 guides the Z-axis component 32 to move back and forth along the second preset direction. The sliding cooperation guidance between the X-axis slider 20 and the X-axis slide rail 21 helps to ensure the stability of the Z-axis component 32 moving back and forth along the second preset direction. Specifically, the X-axis slider 20 can be provided with a T-slot that can be limitedly cooperated with the X-axis slide rail 21, so that the limited cooperation between the X-axis slider 20 and the X-axis slide rail 21 limits the freedom of the X-axis slider 20 in the vertical direction to prevent up and down shaking.

[0042] Furthermore, if Figure 2 and Figure 3As shown, a protective assembly for covering the X-axis transmission rack 19 and the X-axis slide rail 21 is installed on the bearing portion 142, and the protective assembly includes a first protective cover 22 and a second protective cover 23 respectively connected to both sides of the Z-axis component 32, and the first protective cover 22 and the second protective cover 23 are configured as a pleated structure that can be extended or folded and are respectively connected to the two ends of the bearing portion 142, and when one of the first protective cover 22 and the second protective cover 23 is extended with the movement of the Z-axis component 32, the other of the two is folded with the movement of the Z-axis component 32. It can be understood by those skilled in the art that the protection of the X-axis transmission rack 19 and the X-axis slide rail 21 by the protective assembly effectively reduces the accumulation of pollutants such as external dust on the X-axis transmission rack 19 and the X-axis slide rail 21, which has an adverse effect on the reciprocating movement of the Z-axis component 32 along the second preset direction, and ensures the transmission stability and the smoothness of the movement of the Z-axis component 32. Specifically, the first protective cover 22 and the second protective cover 23 can be selected as accordion protective covers. When the Z-axis component 32 moves along the second preset direction, one of the first protective cover 22 and the second protective cover 23 is extended under the pulling action of the Z-axis component 32, and the other one is folded under the squeezing action of the Z-axis component 32. The overall movement is flexible, and it has a good protective effect on the X-axis transmission rack 19 and the X-axis slide rail 21.

[0043] As a preferred implementation of the present application, Figure 4 As shown, the Z-axis component 32 includes a second mounting plate 24, the laser cutting head 15 is mounted on the second mounting plate 24, and the Z-axis linear module includes a Z-axis drive motor 17 disposed on the Z-axis component 32 and a lead screw nut kinematic pair driven by the Z-axis drive motor 17 to drive the second mounting plate 24 to move back and forth along the third preset direction. Specifically, when the Z-axis drive motor 17 is running, the lead screw nut kinematic pair converts the rotational motion into linear motion to drive the second mounting plate 24 to move up and down. Since the laser cutting head 15 is mounted on the second mounting plate 24, the second mounting plate 24 moves up and down while driving the laser cutting head 15 to move up and down.

[0044] It can be understood by those skilled in the art that the laser cutting heads of most common laser cutting machines are arranged vertically, that is, the optical fiber extends into the shell of the laser cutting head from top to bottom. This type of laser cutting head has a simple structure, but the overall height is large. Affected by the gantry structure, the space in the vertical direction of the equipment is relatively cramped. If the overall height of the laser cutting head is large, its displacement in the vertical direction will also be greatly limited. Therefore, as a preferred embodiment of the present application, Figure 4As shown, the overall structure of the shell of the laser cutting head 15 is a right-angle structure connected by a horizontal portion 151 extending in the horizontal direction and a vertical portion 152 extending in the vertical direction, and the optical fiber 153 of the laser cutting head 15 enters the horizontal portion 151 in the horizontal direction. In this solution, the horizontal portion 151 of the laser cutting head 15 is structurally expanded in the horizontal direction, and the optical fiber 153 enters the shell horizontally, so that its height dimension in the vertical direction is reduced. After installation, the space occupied in the vertical direction is small, which helps to release the spatial pressure in the vertical direction that is already limited. The overall structure formed by the suspension beam 14, the Z-axis component 32 and the laser cutting head 15 is more compact.

[0045] As a preferred implementation of the present application, Figure 3 and Figure 5 As shown, the Y-axis linear module includes a Y-axis drive motor 17, a Y-axis reducer 18, a Y-axis transmission gear and a Y-axis transmission rack 19. The Y-axis drive motor 17 is installed on the suspension beam 14. The Y-axis reducer 18 is connected to the output shaft of the Y-axis drive motor 17. The Y-axis transmission gear is connected to the power output end of the Y-axis reducer 18. The Y-axis transmission rack 19 is arranged at the bottom of the static beam 13 and extends along the first preset direction. When the Y-axis drive motor 17 is in operation, the Y-axis drive gear and the Y-axis transmission rack 19 are meshed to drive the suspension beam 14 to move back and forth along the first preset direction. It can be understood by those skilled in the art that the Y-axis linear module is also a combination of a motor and a reducer. The Y-axis drive motor is mainly used to output a high-speed, low-torque output speed. The main function of the Y-axis reducer 18 is to reduce the output speed and increase the torque. Therefore, the Y-axis linear module can effectively improve the torque output and load capacity to achieve an ideal transmission effect. Specifically, when the Y-axis drive motor 17 is running, the power is output to the Y-axis transmission gear through the Y-axis reducer 18, driving the Y-axis transmission gear to engage with the Y-axis transmission rack 19 for transmission, so that the suspension beam 14 carries the Z-axis component 32 and the laser cutting head 15 to move relative to the static beam 13 along the first preset direction.

[0046] Furthermore, if Figure 3 and Figure 5As shown, a Y-axis slider 20 is installed on the top of the suspension beam 14, and a Y-axis slide rail 21 extending along the first preset direction is provided at the bottom of the static beam 13. The sliding cooperation between the Y-axis slider 20 and the Y-axis slide rail 21 guides the suspension beam 14 to move back and forth along the first preset direction. The sliding cooperation between the Y-axis slider 20 and the Y-axis slide rail 21 helps to ensure the stability of the reciprocating movement of the suspension beam 14 along the first preset direction. At the same time, the Y-axis slider 20 can also be provided with a T-slot that can be limitedly cooperated with the Y-axis slide rail 21, so that the limited cooperation between the Y-axis slider 20 and the Y-axis slide rail 21 limits the freedom of the Y-axis slider 20 in the second preset direction, preventing it from shaking along the second preset direction.

[0047] As a preferred implementation of the present application, Figure 6 As shown, the laser cutting machine further includes a protective shell 31 surrounding the bed 11, and the protective shell 31 is provided with a lifting door 311 that can be lifted and moved. The protective shell 31 protects the laser cutting machine, and the cutting of the workpiece can be carried out under the cover of the protective shell 31, which makes the operation safer. By providing the lifting door 311 that can be lifted and moved, the lifting door 311 can open the internal cavity of the protective shell 31, making it convenient for the table component 12 to move to the outside of the equipment.

[0048] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0049] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0050] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A laser cutting machine, comprising a bed, the bed comprising a base and support tables respectively arranged vertically at both ends of the base, a movable table component for carrying a workpiece being installed on the base, characterized in that: The laser cutting machine also includes a static beam, a suspension beam, a Z-axis component and a laser cutting head. The two ends of the static beam are respectively fixed to the top of the support platform at the two ends of the base. The suspension beam is suspended at the bottom of the static beam and can move back and forth along a first preset direction through a Y-axis linear module. The Z-axis component is installed on the side of the suspension beam and can move back and forth along a second preset direction through an X-axis linear module. The laser cutting head is installed on the Z-axis component and can move back and forth along a third preset direction through the Z-axis linear module. The first preset direction, the second preset direction and the third preset direction are perpendicular to each other.

2. The laser cutting machine according to claim 1, characterized in that: The suspension beam includes a suspension part and a bearing part from top to bottom, the suspension beam is suspended at the bottom of the static beam through the suspension part, the length of the bearing part extends along the second preset direction, and the Z-axis component is installed on the side of the bearing part.

3. The laser cutting machine according to claim 2, characterized in that: The Z-axis component includes a first mounting plate, and the X-axis linear module includes an X-axis drive motor, an X-axis reducer, an X-axis transmission gear and an X-axis transmission rack. The X-axis drive motor is installed on the first mounting plate, the X-axis reducer is connected to the output shaft of the X-axis drive motor, the X-axis transmission gear is connected to the power output end of the X-axis reducer, the X-axis transmission rack is arranged on the bearing portion and extends along the second preset direction. When the X-axis drive motor is in operation, the Z-axis component is driven to move back and forth along the second preset direction through the meshing transmission of the X-axis transmission gear and the X-axis transmission rack.

4. The laser cutting machine according to claim 3, characterized in that: The Z-axis component includes an X-axis slider, and the bearing portion is provided with an X-axis slide rail extending along the second preset direction. The sliding cooperation between the X-axis slider and the X-axis slide rail guides the Z-axis component to move back and forth along the second preset direction.

5. The laser cutting machine according to claim 4, characterized in that: A protective component for covering the X-axis transmission rack and the X-axis slide rail is installed on the bearing portion, and the protective component includes a first protective cover and a second protective cover respectively connected to both sides of the Z-axis component, and the first protective cover and the second protective cover are both configured as a pleated structure that can be extended or folded and are respectively connected to the two ends of the bearing portion, and when one of the first protective cover and the second protective cover is extended with the movement of the Z-axis component, the other of the first protective cover is folded with the movement of the Z-axis component.

6. The laser cutting machine according to claim 1, characterized in that: The Z-axis component includes a second mounting plate, the laser cutting head is mounted on the second mounting plate, and the Z-axis linear module includes a Z-axis drive motor arranged on the Z-axis component and a screw nut motion pair driven by the Z-axis drive motor to drive the second mounting plate to move back and forth along the third preset direction.

7. The laser cutting machine according to claim 1, characterized in that: The shell of the laser cutting head is integrally constructed as a right-angle structure connected by a horizontal portion extending in a horizontal direction and a vertical portion extending in a vertical direction, and the optical fiber of the laser cutting head enters the horizontal portion in a horizontal direction.

8. The laser cutting machine according to claim 1, characterized in that: The Y-axis linear module includes a Y-axis drive motor, a Y-axis reducer, a Y-axis transmission gear and a Y-axis transmission rack. The Y-axis drive motor is installed on the suspension beam, the Y-axis reducer is connected to the output shaft of the Y-axis drive motor, the Y-axis transmission gear is connected to the power output end of the Y-axis reducer, the Y-axis transmission rack is arranged at the bottom of the static beam and extends along the first preset direction. When the Y-axis drive motor is in operation, the suspension beam is driven to move back and forth along the first preset direction through the meshing transmission of the Y-axis transmission gear and the Y-axis transmission rack.

9. The laser cutting machine according to claim 8, characterized in that: A Y-axis slider is installed on the top of the suspension beam, and a Y-axis slide rail extending along the first preset direction is provided at the bottom of the static beam. The sliding cooperation between the Y-axis slider and the Y-axis slide rail guides the suspension beam to move back and forth along the first preset direction.

10. The laser cutting machine according to claim 1, characterized in that: The laser cutting machine also includes a protective shell surrounding the bed, and the protective shell is provided with a lifting door that can be lifted and moved.

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