Multi-arm high-speed rotating workbench for laser cutting machine

Abstract

The utility model relates to a multi-arm high-speed rotating workbench for a laser cutting machine, which comprises a foot margin base plate and a servo rotary table fixedly arranged on the foot margin base plate, and a rotary table seat fixedly connected with the servo rotary table is arranged at the top of the servo rotary table; the rotary table seat is of a flat cuboid structure and is fixedly connected with a flange plate at the top of the servo rotary table through a bottom plate; rotary table arms fixedly connected with the rotary table base are arranged on the long faces of the left side and the right side of the rotary table base, the rotary table arms on the left side and the right side of the rotary table base are the same in number and symmetrical, and the rotary table arms are arranged in a suspended mode and can horizontally and synchronously rotate along with the rotary table base. The multi-arm high-speed rotating workbench for the laser cutting machine is high in structural strength and balanced in weight, the stability of equipment operation is guaranteed, the stability of the rotary table in a static or moving state is guaranteed by adopting a special anchor fastening device, the machining operation efficiency can still be achieved under the condition that the breadth and the load weight are increased, and the working efficiency is improved. And the machining quality of the workpiece is ensured.

Description

Technical Field

[0001] This utility model relates to a turntable for a laser cutting machine, and more particularly to a multi-arm high-speed rotating worktable for a laser cutting machine. Background Technology

[0002] With the increasing market demand for large-format 3D five-axis cutting equipment, the rotary tables used on conventional 3D five-axis cutting machines are no longer sufficient due to their small size. Simply enlarging the size of the rotary table to meet different processing needs will result in drawbacks such as excessive load and low rotation speed, and it is also prone to deformation. Therefore, it is necessary to re-analyze and redesign the rotary table to meet the requirements of safe, high-speed, and stable operation of the equipment. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a multi-arm high-speed rotating worktable for laser cutting machines with good structural strength, balanced weight, and stable operation.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] A high-speed rotating worktable for a laser cutting machine includes a base plate and a servo turntable fixedly mounted on the base plate. The servo turntable has a turntable base fixedly connected to its top, and the servo turntable can drive the turntable base to rotate horizontally. The turntable base has a flat rectangular structure and is fixedly connected to the flange on the top of the servo turntable via a base plate. Turntable arms are fixedly connected to the long surfaces on both sides of the turntable base. The number of turntable arms on both sides of the turntable base is the same and they are symmetrical to each other. The turntable arms are suspended and can rotate horizontally synchronously with the turntable base.

[0006] Preferably, the servo turntable is provided with a base frame, and the base frame is provided with a cover.

[0007] Preferably, the turntable arm is composed of an I-beam and a tooling pad; one end of the I-beam is fixedly welded with a cantilever mounting plate for connection with the turntable base; the tooling pad is fixedly disposed on the top of the I-beam, and a shim is provided between the tooling pad and the I-beam to create a gap between the tooling pad and the top of the I-beam; the tooling pad is provided with mounting holes and positioning pins for easy installation of fixtures or jigs; the positioning pins are inserted into the tooling pad.

[0008] Preferably, stiffening plates are provided on both sides of the I-beam.

[0009] Preferably, the top of the foot pad is provided with a foot fastening device for horizontal positioning of the servo turntable and a turntable fixing device for height limiting; the foot fastening device consists of a turntable foot, a threaded sleeve, a limiting block, and a pressure block; the turntable foot is fixed on the foot pad, the threaded sleeve is fixedly embedded in the center of the turntable foot, and a limiting stud with its threaded engagement is provided inside the threaded sleeve for fastening the servo turntable foot to the turntable foot; the limiting block has an "L" shaped structure and is fixedly installed on the top of the turntable foot near the outer corner edge by bolts, and its included angle corresponds to that of the threaded sleeve; the pressure block is fixedly installed on the turntable foot by bolts, and there are two of them, with the two pressure blocks respectively corresponding to the two inner sides of the limiting block, and the pressure blocks and the inner sides of the limiting block are in contact with each other; the turntable fixing device consists of a pressure plate and a set bolt screwed to the pressure plate.

[0010] Preferably, the foot fastening device has four sets, corresponding to the four corners of the servo turntable; the turntable fixing device has at least two sets, used to clamp the sides of the servo turntable.

[0011] Preferably, the mating surface between the limiting block and the pressing block is an inclined surface.

[0012] Preferably, a protective plate is provided at the center of the top surface of the turntable along its length direction. The protective plate is fixedly installed on the top of the turntable by a connecting plate, and its two ends extend symmetrically to the outer sides of both ends of the turntable. The bottom surface of the part of the protective plate extending to the outer side of the end of the turntable is flush with the bottom surface of the turntable.

[0013] Preferably, protective brushes are provided on the bottom of the portion of the protective plate located on the outer side of the turntable base end and on the periphery of the bottom edge of the turntable base.

[0014] Compared with the prior art, the advantages of this utility model are: the multi-arm high-speed rotating worktable of this laser cutting machine has high structural strength and balanced weight, which ensures the stability of the equipment operation. The structure of the turntable base and turntable arm is reasonable. It adopts a special foot fastening device that is compatible with the servo turntable foot fastening, which ensures the stability of the turntable in a static or moving state. It ensures that the processing efficiency can still be achieved when the size and load weight are increased, and ensures the processing quality of the workpiece. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a three-dimensional structural diagram of a multi-arm high-speed rotating worktable for a laser cutting machine according to the present invention;

[0017] Figure 2 This is a top view schematic diagram of the structure of a multi-arm high-speed rotating worktable for a laser cutting machine according to this utility model;

[0018] Figure 3 yes Figure 2 Structural cross-sectional view of AA;

[0019] Figure 4 This is a schematic diagram of the structure of the turntable arm in a multi-arm high-speed rotating worktable for a laser cutting machine according to this utility model.

[0020] Figure 5 This is a schematic diagram of the assembly structure of the servo turntable and the foot pad in a multi-arm high-speed rotating worktable for a laser cutting machine according to this utility model.

[0021] Figure 6 This is a schematic diagram of the foot pad structure of a multi-arm high-speed rotating worktable for a laser cutting machine according to this utility model.

[0022] Figure 7 yes Figure 6 Enlarged view of the structure of B in the middle.

[0023] In the diagram: 1. Base frame; 11. Cover; 12. Foot pad; 2. Turntable base; 21. Connecting plate; 22. Base plate; 3. Turntable arm; 31. I-beam; 32. Cantilever mounting plate; 33. Tooling pad; 331. Mounting hole; 332. Positioning pin; 34. Raising block; 35. Rib plate; 4. Protective plate; 5. Protective brush; 6. Servo turntable; 61. Flange; 7. Foot fastening device; 71. Turntable foot pad; 711. Threaded sleeve; 712. Limit bolt; 72. Limit block; 73. Pressure block; 8. Turntable fixing device; 81. Pressure plate; 82. Set bolt. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the embodiments of the present invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships commonly used when the product of the present invention is in use, they 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0026] Furthermore, the use of terms such as "horizontal" or "vertical" does not imply that the component must be absolutely horizontal or vertical, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure or component must be completely horizontal, but can be slightly tilted.

[0027] In the description of the embodiments of this utility model, "a plurality of" means at least two.

[0028] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Example

[0030] Please refer to the instruction manual attached. Figures 1 to 3 As shown, the instruction manual is attached. Figures 1 to 3The illustration shows a specific embodiment of a multi-arm high-speed rotating worktable for a laser cutting machine according to this utility model. This multi-arm high-speed rotating worktable is mainly used in three-dimensional five-axis laser processing, but is not limited to laser cutting or laser welding. It includes a base plate 12 and a servo turntable 6 fixedly mounted on the base plate 12. The base plate 12 has vertically connected fixing holes according to the load characteristics. During machine installation, expansion bolts are used to firmly fix the base plate 12 to the ground through the fixing holes. (See attached specification). Figure 5 and 6 As shown, the top of the foot pad 12 is equipped with a foot fastening device 7 for horizontal positioning of the servo turntable 6 and a turntable fixing device 8 for height limiting; see the attached manual. Figure 5 and 6As shown, the foot fastening device 7 has four sets, corresponding to the four corners of the servo turntable 6, for limiting the horizontal direction of the amplitude turntable 6. Further, the foot fastening device 7 consists of a turntable foot 71, a threaded sleeve 711, a limiting block 72, and a pressure block 73. The turntable foot 71 is fixed to the foot pad 12 by bolts or by welding. The threaded sleeve 711 is fixedly embedded in the center of the turntable foot 71, and the threaded sleeve 711 and the turntable foot 71 can be welded together. The threaded sleeve 711 has a threaded hole in its center. The position of the threaded hole corresponds vertically to the position of the connection hole on the foot of the servo turntable 6. A limiting stud 712 is provided inside the threaded sleeve 711, which is threadedly engaged with it. This limiting stud 712 can pass through the connection hole on the foot of the servo turntable 6 and be threadedly connected to the corresponding threaded hole, fixing the servo turntable 6 to the turntable foot 71. To facilitate horizontal limiting of the servo turntable 6, the limiting block 72 has an "L" shape and is fixedly installed on the top of the turntable foot 71 near the outer corner edge by bolts. The limiting blocks on the four sets of foot fastening devices 7 on the foot pad 12 are also included. The position blocks 72 form a rectangular frame structure, corresponding to the outer sides of the four feet at the bottom of the servo turntable 6. The included angle of the limit block 72 corresponds to the threaded sleeve 711. The pressure block 73 is fixedly installed on the turntable foot 71 by bolts. The pressure block 73 is located between the corresponding threaded sleeve 711 and the limit block 72. The turntable foot 71 has a threaded connection hole at the part between the threaded sleeve 711 and the limit block 72. The top center of the pressure block 73 has an adjustment hole that is connected vertically. The pressure block 73 is fixedly connected to the threaded connection hole by an adjustment bolt passing through the adjustment hole. It should be noted that the adjusting bolt is threaded into the threaded adjusting hole and fits into the adjusting hole. Rotating the adjusting bolt allows it to move up and down within the threaded connection hole, facilitating the downward pressing of the pressure block 73 against the outer side of the servo turntable 6's foot, or releasing the pressure block 73 from the outer side of the servo turntable 6's foot. There are two pressure blocks 73, each corresponding to one of the two inner sides of the limiting block 72, and the inner sides of the pressure blocks 73 and the limiting block 72 are in close contact. For details on how to effectively press and limit the side of the servo turntable 6's foot, please refer to the appendix of the instruction manual. Figure 7 As shown, the mating surface between the limiting block 72 and the pressing block 73 is an inclined surface; when the pressing block 73 moves downward, it simultaneously moves horizontally outward. (Refer to the appendix of the instruction manual.) Figure 6As shown, the turntable fixing device 8 consists of a pressure plate 81 and set bolts 82 screwed onto the pressure plate 81. It is used for clamping and limiting the bottom edge of the servo turntable 6, and for vertical positioning and clamping. In this embodiment, at least two sets are used, clamping the sides of the servo turntable 6. It should be noted that the installation position and specific number of the turntable fixing devices 8 are determined based on the analysis of the entire worktable in both static and dynamic states. The stress state of the servo turntable 6's feet is identified, and then, according to different positions, stress magnitudes, and stress directions, dedicated and compatible turntable fixing devices 8 are used to secure the servo turntable 6, ensuring the stability of the servo turntable 6 in both static and dynamic states. (See attached instruction manual.) Figure 1 and 3 As shown, the servo turntable 6 is externally equipped with a base frame 1, and the base frame 1 is externally equipped with a cover 11, which serves both aesthetic purposes and protective functions, preventing processing debris and slag from entering the servo turntable 6 and damaging the equipment. A turntable base 2 is fixedly connected to the top of the servo turntable 6. There is a gap between the turntable base 2 and the top of the cover 11 to avoid interference during rotation. The servo turntable 6 can drive the turntable base 2 to perform a 180-degree reciprocating horizontal rotation. The turntable base 2 has a flat rectangular structure, and its bottom center is fixedly connected to the flange 61 on the top of the servo turntable 6 via a base plate 22. The bolt connection facilitates easy assembly and disassembly. The turntable base 2 is the main body of the entire platform, connecting... The upper tooling workpiece and the lower servo turntable 6 require a balance between structural rigidity and weight. To facilitate this, turntable arms 3 are fixedly connected to the long surfaces of both sides of the turntable base 2. The number of turntable arms 3 on both sides of the turntable base 2 is the same and symmetrical. The turntable arms 3 are suspended and can rotate horizontally synchronously with the turntable base 2. The structure of the turntable base 2 and turntable arms 3 was optimized using finite element analysis to ensure no deviation within the rated load, a reasonable distribution of the center of inertia, and a balance between structural strength and weight. The material is high-strength carbon steel welded together and annealed to remove internal stress, ensuring that internal stress will not affect installation accuracy during long-term use and guaranteeing stable operation. (See attached instruction manual.) Figure 4As shown, the turntable arm 3 is composed of an I-beam 31 and a tooling pad 33. One end of the I-beam 31 is fixedly welded with a cantilever mounting plate 32 for connection to the turntable base 2. The cantilever mounting plate 32 is bolted to the side of the turntable base 2 for easy assembly and disassembly. To improve the strength of the I-beam 31 and prevent deformation, stiffening plates 35 are fixedly welded to both sides along the length of the I-beam 31 to increase strength. The stiffening plates 35 also have several process holes, which reduce weight while maintaining strength. The tooling pad 33 is fixedly mounted on the top of the I-beam 31. The mounting plate 33 is used for mounting fixtures or jigs. A shim block 34 is provided between the mounting plate 33 and the I-beam 31. The shim block 34 creates a gap between the top of the mounting plate 33 and the top of the I-beam 31, which facilitates the connection of the fixture or jig to the mounting plate 33 by bolts. There is a certain extension space below the screw. The mounting plate 33 is provided with mounting holes 331 and positioning pins 332 to facilitate the installation of fixtures or jigs and to ensure the consistency of the installation position of the fixture. The positioning pins 332 are inserted into the mounting plate 33 and can be set according to the installation requirements of the fixture or jig.

[0031] See the attached instruction manual. Figures 1 to 3 As shown, a protective plate 4 is provided along the length of the center of the top surface of the turntable 2. The protective plate 4 is used to isolate the cutting area from the external area, preventing laser or spark splashes and improving the safety during processing. The protective plate 4 is fixedly installed on the top of the turntable 2 by a connecting plate 31. The connecting plate 31 has an L-shaped structure and is fixedly connected to the top of the turntable 2 and the protective plate 4 by bolts. To ensure the protective effect, the two ends of the protective plate 4 extend symmetrically to the outer sides of both ends of the turntable 2. The bottom surface of the part of the protective plate 4 extending to the outer side of the end of the turntable 2 is flush with the bottom surface of the turntable 2. To prevent waste chips and residues from entering between the top of the turntable 2 and the cover 11 during processing, and to avoid interfering with the horizontal rotation of the turntable 2, please refer to the appendix of the instruction manual. Figure 1 and 3 As shown, protective brushes 5 are provided on the bottom of the portion of the protective plate 4 located on the outer side of the end of the turntable base 2 and on the periphery of the bottom of the turntable base 2.

[0032] This laser cutting machine uses a high-strength, multi-arm high-speed rotating worktable with balanced weight, ensuring stable operation. The turntable base and arms have a reasonable structure and use a special foot fastening device adapted to the servo turntable, ensuring the stability of the turntable in both static and dynamic states. This ensures that the worktable can still achieve processing efficiency even with increased size and load weight, thus guaranteeing the processing quality of the workpiece.

[0033] It should be emphasized that the above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-arm high-speed rotating worktable for a laser cutting machine, characterized in that: The system includes a base plate (12) and a servo turntable (6) fixedly mounted on the base plate (12). The servo turntable (6) has a turntable base (2) fixedly connected to its top. The servo turntable (6) can drive the turntable base (2) to rotate horizontally. The turntable base (2) has a flat rectangular structure and is fixedly connected to the flange (61) on the top of the servo turntable (6) through a base plate (22). Turntable arms (3) are fixedly connected to the long surfaces on both the left and right sides of the turntable base (2). The number of turntable arms (3) on the left and right sides of the turntable base (2) is the same and they are symmetrical to each other. The turntable arms (3) are suspended and can rotate horizontally synchronously with the turntable base (2).

2. The multi-arm high-speed rotating worktable for a laser cutting machine according to claim 1, characterized in that: The servo turntable (6) is provided with a base frame (1) on its exterior, and a cover (11) is provided on the exterior of the base frame (1).

3. The multi-arm high-speed rotating worktable for a laser cutting machine according to claim 1, characterized in that: The turntable arm (3) is composed of an I-beam (31) and a tooling pad (33); one end of the I-beam (31) is fixedly welded with a cantilever mounting plate (32) for connecting with the turntable base (2); the tooling pad (33) is fixedly set on the top of the I-beam (31), and a shim block (34) is provided between the tooling pad (33) and the I-beam (31), so that there is a gap between the tooling pad (33) and the top of the I-beam (31) through the shim block (34); the tooling pad (33) is provided with mounting holes (331) and positioning pins (332) for easy installation of fixtures or jigs; the positioning pins (332) are inserted into the tooling pad (33) for vertical engagement.

4. The multi-arm high-speed rotating worktable for a laser cutting machine according to claim 3, characterized in that: The I-beam (31) is provided with stiffening plates (35) on both sides.

5. A multi-arm high-speed rotating worktable for a laser cutting machine according to claim 1, characterized in that: The top of the foot pad (12) is provided with a foot fastening device (7) for horizontal positioning of the servo turntable (6) and a turntable fixing device (8) for height limiting; the foot fastening device (7) consists of a turntable foot (71), a threaded sleeve (711), a limiting block (72), and a pressure block (73); the turntable foot (71) is fixed on the foot pad (12), and the threaded sleeve (711) is fixedly embedded in the center of the turntable foot (71). A limiting stud (712) with its threaded engagement is provided in the threaded sleeve (711) for fastening the foot of the servo turntable (6) to the turntable. The table foot (71) is used for the table; the limiting block (72) is in the shape of an "L" and is fixedly installed on the top of the table foot (71) near the outer corner edge by bolts, and its included angle corresponds to the threaded sleeve (711); the pressure block (73) is fixedly installed on the table foot (71) by bolts, and there are two of them. The two pressure blocks (73) correspond to the two inner sides of the limiting block (72) respectively, and the pressure block (73) and the inner side of the limiting block (72) are in contact with each other; the table fixing device (8) consists of a pressure plate (81) and a set bolt (82) screwed on the pressure plate (81).

6. A multi-arm high-speed rotating worktable for a laser cutting machine according to claim 5, characterized in that: The foot fastening device (7) has four sets, corresponding to the four corners of the servo turntable (6); the turntable fixing device (8) has at least two sets, used to clamp the sides of the servo turntable (6).

7. A multi-arm high-speed rotating worktable for a laser cutting machine according to claim 5, characterized in that: The mating surfaces of the limiting block (72) and the pressing block (73) are inclined surfaces.

8. A multi-arm high-speed rotating worktable for a laser cutting machine according to claim 1, characterized in that: A protective plate (4) is provided at the center of the top surface of the turntable (2) along its length direction. The protective plate (4) is fixedly installed on the top of the turntable (2) by a connecting plate (21), and its two ends extend symmetrically to the outer sides of the two ends of the turntable (2). The bottom surface of the part of the protective plate (4) extending to the outer side of the end of the turntable (2) is flush with the bottom surface of the turntable (2).

9. A multi-arm high-speed rotating worktable for a laser cutting machine according to claim 8, characterized in that: Protective brushes (5) are provided on the bottom of the part located on the outer side of the end of the turntable (2) on the protective plate (4) and on the four edges of the bottom of the turntable (2).

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