Laser cutting device with focal length capable of being adjusted in real time

Abstract

The utility model discloses a laser cutting device with the focal length capable of being adjusted in real time. The laser cutting device comprises a controller, a cutting piece, a vertical driving piece, a height adjusting piece, a mounting support and a fork-shaped piece. The fork-shaped piece and the vertical driving piece are installed on the installation support, the cutting piece is connected with the vertical driving piece, one end of the fork-shaped piece is arranged close to the cutting piece, the other end of the fork-shaped piece makes contact with the height adjusting piece, and the controller is connected with the vertical driving piece and the height adjusting piece. The fork-shaped piece abuts against the surface of a plate cut by the cutting piece and is connected with the installation support through a shaft, one end of the fork-shaped piece keeps a fixed distance with the cutting piece, the other end of the fork-shaped piece abuts against the height adjusting piece, and the fork-shaped piece abuts against the surface of the plate, so that the fork-shaped piece moves close to the cutting piece to push the shaft of the height adjusting piece to move up and down, and the height adjusting piece can know the concave-convex condition of the surface of the current plate. The controller adjusts the vertical driving piece to drive the cutting piece to move up and down according to the electric signal feedback of the height adjusting piece, so that the focus of the cutting piece is continuously located on the surface of the plate, and a good cutting effect is kept.

Description

Technical Field

[0001] The present application relates to the field of laser cutting technology, and in particular to a laser cutting device with real-time adjustable focal length. Background Art

[0002] Laser cutting is a technology that uses a high-power density laser beam as a cutting tool. The focused laser beam heats the material to a high temperature, causing it to melt or vaporize, and then cuts the material. This cutting method offers advantages such as high precision, high speed, high efficiency, and low loss, and is widely used in the processing of metal and non-metal materials.

[0003] Laser cutting devices are usually used for wood processing such as wooden boards. However, due to the uneven surface of the board, which is not smooth, the focus of the laser cutting head cannot be kept on the surface of the board, resulting in poor cutting effect. Utility Model Content

[0004] The technical problem to be solved by this application is that since the surface of the plate is uneven and not smooth, the focus of the laser cutting head cannot be kept focused on the surface of the plate, resulting in poor cutting effect.

[0005] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a laser cutting device with real-time adjustable focal length.

[0006] The utility model discloses a laser cutting device with real-time adjustable focal length, which comprises a controller, a cutting element, a vertical driving element, a height adjusting element, a mounting bracket, and a fork-shaped element;

[0007] The fork-shaped member and the vertical driving member are installed on the mounting bracket, the cutting member is connected to the vertical driving member, one end of the fork-shaped member is set close to the cutting member, and the other end is in contact with the height adjusting member, and the controller is respectively connected to the vertical driving member and the height adjusting member.

[0008] Preferably, it includes a vertical moving mechanism, which includes a vertical slide rail, a vertical moving block, and a vertical moving member;

[0009] The mounting bracket is connected to the vertical moving block, the vertical moving block is connected to the vertical slide rail, and the vertical moving member is connected to the mounting bracket.

[0010] Preferably, the mounting bracket includes a fixing bracket and an adjusting bracket;

[0011] The height-adjusting member is connected to the fixing frame, and the adjusting frame is rotatably connected to the fork-shaped member.

[0012] Preferably, the mounting bracket includes an elastic member, one end of the elastic member is connected to the fixing bracket, and the other end of the elastic member is connected to the fork-shaped member.

[0013] Preferably, it comprises a bottom movable platform and a supporting member, the supporting member is arranged at a position facing the cutting member, and the bottom movable platform is connected to the supporting member.

[0014] Preferably, the bottom moving platform includes a first moving mechanism and a second moving mechanism, the first moving mechanism is connected to the second moving mechanism, and the first moving mechanism and the second moving mechanism are vertically arranged.

[0015] Preferably, the first moving mechanism includes a first moving member, a first slide rail, and a first slider;

[0016] The first slide rail is connected to the first moving member, the first slide rail is connected to the first sliding block, and the first sliding block is connected to the bearing member.

[0017] Preferably, the second moving mechanism includes a fixing member, a second slide rail, and a second slider;

[0018] The second slide rail is connected to the fixed component, the second slider is connected to the second slide rail, and the second slider is connected to the first movable component.

[0019] Preferably, a laser transmitter is included, and the laser transmitter is connected to the cutting element.

[0020] Preferably, a control module is included, and the control module is respectively connected to the bottom moving platform and the laser emitter.

[0021] The above technical solution provided by this application has the following advantages compared with the existing technology:

[0022] The present application provides a laser cutting device with real-time adjustable focal length. The plate is cut by a high-energy laser emitted by a cutting member. A fork member presses against the surface of the plate to be cut by the cutting member. The fork member is connected to the mounting bracket through an axis. The fork member can rotate about the axis. One end of the fork member follows the cutting member, and the other end presses against the height-adjusting member. Since the fork member presses against the surface of the plate, the end of the fork member close to the cutting member rises or falls according to the unevenness of the plate surface, and the other end pushes the axis of the height-adjusting member to rise or fall. The height-adjusting member can know the current unevenness of the plate surface. The controller adjusts the vertical drive member to drive the cutting member up and down according to the electrical signal feedback of the height-adjusting member, so that the focus of the cutting member is continuously on the surface of the plate, maintaining a good cutting effect, and improving the plate cutting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] Figure 1 A schematic structural diagram of a laser cutting device with real-time adjustable focal length provided in this application;

[0026] Figure 2 A schematic structural diagram of an exposed cutting member of a laser cutting device with real-time adjustable focal length provided in this application;

[0027] Figure 3 This is a schematic diagram of the connection structure of the cutting element, vertical movement mechanism, vertical drive element, height adjustment element, mounting bracket and fork element of a laser cutting device with real-time adjustable focal length provided by the present application;

[0028] Figure 4 A schematic structural diagram of a fork-shaped member of a laser cutting device with real-time adjustable focal length provided in this application;

[0029] Figure 5 This is a schematic structural diagram of the bottom moving platform of a laser cutting device with real-time adjustable focal length provided in this application.

[0030] Description of reference numerals:

[0031] 1. Laser cutting device with real-time adjustable focal length; 2. Plate;

[0032] 11. Cutting piece; 111. Laser transmitter;

[0033] 12. Vertical driving member;

[0034] 13. Height adjustment parts;

[0035] 14. Mounting bracket; 141. Elastic member; 142. Fixing bracket; 143. Adjusting bracket;

[0036] 15. Fork-shaped member; 151. Retaining portion; 152. Connecting portion; 153. Contact portion; 154. Pulling portion;

[0037] 16. Vertical moving mechanism; 161. Vertical slide rail; 162. Vertical moving block; 163. Vertical moving member;

[0038] 17. Control module; 171. Controller;

[0039] 18. Bottom mobile platform;

[0040] 181. First moving mechanism; 1811. First moving member; 1812. First slide rail; 1813. First slider;

[0041] 182. Second moving mechanism; 1821. Fixing member; 1822. Second slide rail; 1823. Second slider; 183. Carrying member. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0043] See Figure 1-5 The utility model discloses a laser cutting device 1 with real-time adjustable focal length, which is used for laser cutting a plate 2. The device includes a controller 171, a cutting member 11, a vertical driving member 12, a height adjusting member 13, a mounting bracket 14, a fork member 15, and a vertical moving mechanism 16; wherein the height adjusting member 13 is a height detection element that can detect the rising height of the fork member 15. The controller 171 can obtain the electrical signal of the height adjusting member 13 to fine-tune the height of the cutting member 11. The vertical driving member 12 can drive the cutting member 11 to move in a direction perpendicular to the plate 2. The height adjusting member 13 can obtain the movement amplitude of the fork member 15, thereby judging the degree of concave-convexity of the surface of the plate 2.

[0044] The fork-shaped member 15 and the vertical driving member 12 are installed on the mounting bracket 14, the cutting member 11 is connected to the vertical driving member 12, one end of the fork-shaped member 15 is set close to the cutting member 11, and the other end is in contact with the height adjusting member 13, the controller 171 is respectively connected to the vertical driving member 12 and the height adjusting member 13, and the vertical moving mechanism 16 is connected to the mounting bracket 14.

[0045] Specifically, the plate 2 is cut by the high-energy laser emitted by the cutting member 11, and the fork member 15 is against the surface of the plate 2 cut by the cutting member 11. The fork member 15 can rotate relative to the mounting bracket 14. One end of the fork member 15 follows the cutting member 11, and the other end is against the height-adjusting member 13. Since the fork member 15 is against the surface of the plate 2, the end of the fork member 15 close to the cutting member 11 is raised or lowered, and the other end pushes the axis of the height-adjusting member 13 to rise or lower. The height-adjusting member 13 can know the current convex and concave conditions of the surface of the plate 2. The controller 171 adjusts the vertical drive member 12 to drive the cutting member 11 to move up and down according to the electrical signal feedback of the height-adjusting member 13, so that the focus of the cutting member 11 is continuously on the surface of the plate 2, maintaining a better cutting effect and improving the cutting effect of the plate 2.

[0046] In particular, the shaft of the height adjusting member 13 exerts a certain force on the fork 15 , and the fork 15 needs to exert a force to push the shaft of the height adjusting member 13 to move, so that the height adjusting member 13 can obtain the movement trajectory of the fork 15 in real time.

[0047] The mounting bracket 14 includes an elastic member 141, a fixed frame 142, and an adjustment frame 143. The height adjustment member 13 is connected to the fixed frame 142, and the adjustment frame 143 is rotatably connected to the fork 15. One end of the elastic member 141 is connected to the fixed frame 142, and the other end is connected to the fork 15. The adjustment frame 143 is mounted on the fixed frame 142 via fasteners. The adjustment frame 143 can be adjusted in its position on the fixed frame 142, thereby adjusting the height of the fork 15. It is suitable for adjusting the relative distance between the fork 15 and the cutting head during the initial operation.

[0048] The elastic member 141 is a spring, with its ends connected to the fixing bracket 142 and the fork member 15, respectively. The elastic member 141 is always stretched, and the force applied by the axis of the height-adjusting member 13 is less than the tension generated by the elastic deformation of the elastic member 141, thereby maintaining the fork member 15 in close contact with the surface of the sheet 2. It can be understood that when the fork member 15 passes through a protruding position, the end of the fork member 15 closer to the surface of the sheet 2 rises, while the end closer to the fixing bracket 142 lowers. This causes the elastic member 141 to be continuously stretched, thereby extending the axis of the height-adjusting member 13. When the fork member 15 passes through a recessed position, the end of the fork member 15 closer to the surface of the sheet 2 lowers, while the end closer to the fixing bracket 142 rises. This shortens the elastic member 141, shortening the axis of the height-adjusting member 13. The specific extension and shortening of the height-adjusting member 13 is fed back to the actuator by the controller 171, thereby adjusting the height of the cutting member 11 to maintain the focal point of the cutting member 11 on the surface of the sheet 2.

[0049] The fork-shaped member 15 includes a supporting portion 151, a connecting portion 152, a contact portion 153, and a pulling portion 154. The supporting portion 151, the connecting portion 152, the contact portion 153 and the pulling portion 154 are integrally formed. The supporting portion 151 is supported on the surface of the cutting plate 2, the contact portion 153 is in contact with the height adjusting member 13, and the pulling portion 154 is connected to the fixing frame 142.

[0050] The pulling portion 154 is connected to the fixed frame 142 through the elastic member 141. By pulling the elastic member 141, the supporting portion 151 can always remain close to the surface of the plate 2. The connecting portion 152 is connected to the end of the adjustment frame 143. The fork-shaped member 15 can rotate about the position of the connecting portion 152 connected to the adjustment frame 143. The contact portion 153 contacts the height adjusting member 13, and the contact portion 153 pushes the height adjusting member 13 back to move. At the same time, the height adjusting member 13 will be supported on the contact portion 153, and the axis of the height adjusting member 13 follows the movement of the contact portion 153, so as to obtain the movement amplitude of the contact portion 153 in real time. The controller 171 controls the distance that the vertical driving member 12 drives the cutting member 11 to move according to the information with the height signal fed back by the height adjusting member 13.

[0051] The vertical moving mechanism 16 includes a vertical slide rail 161 , a vertical moving block 162 , and a vertical moving member 163 . The mounting bracket 14 is connected to the vertical moving block 162 . The vertical moving block 162 is connected to the vertical slide rail 161 . The vertical moving member 163 is connected to the mounting bracket 14 .

[0052] Among them, the vertical slide rail 161 is set on the main body of the device, the vertical moving part 163 is a driving motor, and the vertical moving block 162 is driven by the vertical moving part 163 to drive the mounting bracket 14 to move along the surface direction of the vertical plate 2, so that the head of the cutting piece 11 can be greatly raised or lowered, thereby facilitating the cutting piece 11 to move to a predetermined position relative to the plate 2 for cutting.

[0053] The laser cutting device includes a bottom movable platform 18 and a support 183. The support 183 is positioned toward the cutting element 11 and is connected to the bottom movable platform 18. The support 183 can hold the cut sheet 2 and also serves as a storage for sawdust. The bottom movable platform 18 drives the support 183 to move, allowing the position of the cut sheet 2 to be adjusted according to the operator's needs, thereby achieving the desired cutting effect.

[0054] The bottom mobile platform 18 includes a first mobile mechanism 181 and a second mobile mechanism 182. The first mobile mechanism 181 is connected to the second mobile mechanism 182. The first mobile mechanism 181 and the second mobile mechanism 182 are vertically arranged. Specifically, the second mobile mechanism 182 is fixed on a predetermined ground, and the first mobile mechanism 181 can move relative to the second mobile mechanism 182.

[0055] The first moving mechanism 181 includes a first moving member 1811, a first slide rail 1812, a first slider 1813, and a first drive motor. The first drive motor drives the first slider 1813 to move. The first slide rail 1812 is connected to the first moving member 1811, the first slide rail 1812 is connected to the first slider 1813, and the first slider 1813 is connected to the supporting member 183. Specifically, the first moving mechanism 181 can drive the supporting member 183 to move along the direction of the first moving mechanism 181. The first slide rail 1812 is parallel to the direction of the first moving mechanism 181. The first drive motor can drive the supporting member 183 to move on the first moving mechanism 181.

[0056] The second moving mechanism 182 includes a fixing member 1821, a second slide rail 1822, a second slider 1823 and a second driving motor. The second driving motor drives the second slider 1823 to move. The second slide rail 1822 is connected to the fixing member 1821, the second slider 1823 is connected to the second slide rail 1822, and the second slider 1823 is connected to the first moving member 1811.

[0057] Specifically, the fixing member 1821 is placed at a predetermined position, and the second slide rail 1822 is perpendicular to the direction of the first slide rail 1812, so that the supporting member 183 can move on the plane, thereby allowing the placed plate 2 to move on the plane.

[0058] The laser cutting device includes a control module 17 and a laser emitter 111. The laser emitter 111 is connected to the cutting piece 11. The control module 17 is respectively connected to the bottom moving platform 18, the vertical drive piece 12, the vertical moving mechanism 16, the controller 171 and the laser emitter 111. It can be understood that the control module 17 can control the startup and operation of each module through electrical signals, so that the operator can regulate the operation of each module through signals. The laser emitter 111 can emit high-energy laser to meet the cutting requirements of the cutting piece 11 for the plate 2.

[0059] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 invention.

[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0062] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0063] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0064] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean 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 invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0065] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, as long as these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

[0066] The above description is a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A laser cutting device with real-time adjustable focal length, characterized in that: Including controller, cutting part, vertical drive part, height adjustment part, mounting bracket and fork part; The fork-shaped member and the vertical driving member are installed on the mounting bracket, the cutting member is connected to the vertical driving member, one end of the fork-shaped member is set close to the cutting member, and the other end is in contact with the height adjusting member, and the controller is respectively connected to the vertical driving member and the height adjusting member.

2. The laser cutting device with real-time adjustable focal length according to claim 1, characterized in that: It includes a vertical moving mechanism, which includes a vertical slide rail, a vertical moving block, and a vertical moving member; The mounting bracket is connected to the vertical moving block, the vertical moving block is connected to the vertical slide rail, and the vertical moving member is connected to the mounting bracket.

3. The laser cutting device with real-time adjustable focal length according to claim 1, characterized in that: The mounting bracket includes a fixing bracket and an adjusting bracket; The height-adjusting member is connected to the fixing frame, and the adjusting frame is rotatably connected to the fork-shaped member.

4. The laser cutting device with real-time adjustable focal length according to claim 3, characterized in that: The mounting bracket includes an elastic member, one end of the elastic member is connected to the fixing bracket, and the other end is connected to the fork-shaped member.

5. The laser cutting device with real-time adjustable focal length according to claim 1, characterized in that: The utility model comprises a bottom movable platform and a bearing member, wherein the bearing member is arranged at a position facing the cutting member, and the bottom movable platform is connected to the bearing member.

6. The laser cutting device with real-time adjustable focal length according to claim 5, characterized in that: The bottom moving platform includes a first moving mechanism and a second moving mechanism. The first moving mechanism is connected to the second moving mechanism, and the first moving mechanism and the second moving mechanism are vertically arranged.

7. The laser cutting device with real-time adjustable focal length according to claim 6, characterized in that: The first moving mechanism includes a first moving member, a first slide rail, and a first slider; The first slide rail is connected to the first moving member, the first slide rail is connected to the first sliding block, and the first sliding block is connected to the bearing member.

8. The laser cutting device with real-time adjustable focal length according to claim 7, characterized in that: The second moving mechanism includes a fixing member, a second slide rail, and a second slider; The second slide rail is connected to the fixed component, the second slider is connected to the second slide rail, and the second slider is connected to the first movable component.

9. The laser cutting device with real-time adjustable focal length according to claim 5, characterized in that: A laser emitter is included, and the laser emitter is connected to the cutting element.

10. The laser cutting device with real-time adjustable focal length according to claim 9, characterized in that: It includes a control module, which is respectively connected to the bottom moving platform and the laser emitter.

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