Laser cutting device

Abstract

The application belongs to the technical field of laser cutting, and discloses a laser cutting device, which comprises a rack, a pressing block and a cutting assembly. A workpiece to be cut is placed on a cutting platform of the rack. The pressing block is slidably arranged on the rack in the vertical direction and is placed on the upper surface of the workpiece to be cut. The cutting assembly is slidably arranged on the rack in the vertical direction and is used for laser cutting on the upper surface of the workpiece to be cut placed on the cutting platform. The cutting assembly is in transmission connection with the pressing block. When the pressing block slides in the vertical direction, the pressing block can drive the cutting assembly to slide in the vertical direction, and the sliding direction of the pressing block is opposite to that of the cutting assembly. Therefore, when the thickness of the workpiece to be cut changes, the pressing block will slide in the vertical direction, and at this time, the pressing block drives the cutting assembly to move in the vertical direction. Only the sliding distance of the pressing block and the cutting assembly is adjusted, the cutting assembly can be always focused on the upper surface of the workpiece to be cut to realize automatic focusing.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, and more particularly to laser cutting apparatus. Background Technology

[0002] In the manufacturing of parts for equipment such as drones, laser cutting devices are typically used for cutting. Before cutting, the laser cutting device needs to be focused, a process often done manually, which is time-consuming, labor-intensive, and has poor precision. This is especially true for workpieces with uneven thickness, as traditional laser cutting devices cannot adapt to variations in workpiece thickness during the cutting operation.

[0003] To address the aforementioned issues, existing technology provides a computer-controlled laser cutting device. This device adapts to cutting different thicknesses of the same workpiece by inputting the workpiece's position and thickness information to the computer and using a drive component that automatically adjusts the height of the cutting device. However, this method suffers from several drawbacks. The workpiece thickness information needs to be preset on the computer, making the operation cumbersome, time-consuming, and labor-intensive. Furthermore, the control accuracy is affected by the accuracy of the measurement and input results, making it prone to errors. Summary of the Invention

[0004] This invention provides a laser cutting device to solve the problems of cumbersome operation and easy error generation in existing laser cutting devices.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Laser cutting equipment, used for laser cutting of workpieces, includes:

[0007] A frame having a cutting platform for placing the workpiece to be cut;

[0008] The pressure block is slidably disposed on the frame in the vertical direction and placed on the upper surface of the workpiece to be cut;

[0009] A cutting assembly is slidably mounted on the frame in a vertical direction. The cutting assembly is used to perform laser cutting on the upper surface of the workpiece to be cut placed on the cutting platform. The cutting assembly is connected to the pressure block in a driving connection. When the pressure block slides in a vertical direction, the pressure block can drive the cutting assembly to slide in a vertical direction, and the sliding direction of the pressure block and the cutting assembly is opposite.

[0010] As a preferred embodiment of the laser cutting device, it further includes a transmission rod rotatably mounted on the frame. The transmission rod has a first groove and a second groove opened along its length. The rotatable connection position between the transmission rod and the frame is located between the first groove and the second groove. The pressure block is slidably mounted on the first groove and can rotate relative to the transmission rod. The cutting assembly is slidably mounted on the second groove and can rotate relative to the transmission rod.

[0011] As a preferred embodiment of the laser cutting device, the frame includes a frame body and a mounting component connected to the frame body. The pressure block and the cutting assembly are both slidably disposed on the mounting component. The transmission rod is rotatably disposed on the mounting component. The frame body is provided with a slide rail, and the mounting component is slidably disposed on the slide rail.

[0012] As a preferred embodiment of the laser cutting device, the mounting component includes:

[0013] The mounting base is slidably mounted on the slide rail;

[0014] Support plates are fixedly installed on the mounting base. There are two support plates, which are parallel and spaced apart. Each support plate has a third sliding groove in the vertical direction. The pressure block and the cutting component are slidably installed in the third sliding grooves of the two support plates respectively.

[0015] An upright plate is connected to the support plate, and the transmission rod is rotatably connected to the upright plate.

[0016] As a preferred embodiment of the laser cutting device, the mounting component further includes a connecting plate, which is connected to the ends of both support plates simultaneously. The upright plate is connected to the connecting plate and extends in a vertical direction.

[0017] As a preferred embodiment of the laser cutting device, the pressure block includes an extension that is slidably disposed vertically on the frame and a positioning ring disposed on the extension. The positioning ring has a positioning hole through which the laser emitted by the cutting assembly can pass to perform laser cutting on the workpiece to be cut.

[0018] As a preferred embodiment of the laser cutting device, the pressure block further includes a roller disposed on the positioning ring, the roller being able to roll into contact with the upper surface of the workpiece to be cut.

[0019] As a preferred embodiment of the laser cutting device, the pressure block further includes a fan disposed on the extension.

[0020] As a preferred embodiment of the laser cutting device, the fan is equipped with a filter.

[0021] As a preferred embodiment of the laser cutting device, the pressure block further includes reinforcing ribs, and the extension and the fan are connected to the reinforcing ribs simultaneously.

[0022] The beneficial effects of this invention are:

[0023] This invention provides a laser cutting device, including a frame, a pressure block, and a cutting assembly. The workpiece to be cut is placed on the cutting platform of the frame. The pressure block is slidably mounted on the frame in the vertical direction and placed on the upper surface of the workpiece to be cut. The cutting assembly is slidably mounted on the frame in the vertical direction. The cutting assembly is used to perform laser cutting on the upper surface of the workpiece placed on the cutting platform. The cutting assembly is drivenly connected to the pressure block. When the pressure block slides in the vertical direction, it can drive the cutting assembly to slide in the vertical direction. The sliding directions of the pressure block and the cutting assembly are opposite. Therefore, when the thickness of the workpiece to be cut changes, it will drive the pressure block to slide in the vertical direction. At this time, the pressure block drives the cutting assembly to move in the vertical direction. By adjusting the sliding distance between the pressure block and the cutting assembly, the cutting assembly can always be focused on the upper surface of the workpiece to be cut, so as to achieve automatic focusing. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the laser cutting device in an embodiment of the present invention;

[0025] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 This is a schematic diagram of the structure of the mounting component in an embodiment of the present invention. Figure 1 ;

[0027] Figure 4 This is a schematic diagram of the structure of the mounting component in an embodiment of the present invention. Figure 2 ;

[0028] Figure 5 This is a schematic diagram of the structure of the pressure block in an embodiment of the present invention. Figure 1 ;

[0029] Figure 6 This is a schematic diagram of the structure of the pressure block in an embodiment of the present invention. Figure 2 .

[0030] In the picture:

[0031] 1. Frame; 101. Cutting platform; 11. Frame body; 111. Slide rail; 12. Mounting parts; 121. Mounting base; 122. Support plate; 1221. Third slide rail; 123. Vertical plate; 124. Connecting plate;

[0032] 2. Pressure block; 201. First slide rod; 202. First sleeve; 21. Extension piece; 211. Ventilation hole; 22. Positioning ring; 221. Positioning hole; 23. Roller; 24. Fan; 241. Filter screen; 25. Reinforcing rib;

[0033] 3. Cutting assembly; 301. Second slide bar; 302. Second sleeve;

[0034] 4. Transmission rod; 41. First slide groove; 42. Second slide groove; Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0036] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0039] Example 1

[0040] Laser cutting devices require focusing before cutting, a process often involving manual adjustment that is time-consuming, labor-intensive, and inaccurate. This is especially problematic for workpieces of varying thickness, where traditional laser cutting devices cannot adapt to changes in thickness. To address this, existing technology offers a computer-controlled laser cutting device. This device inputs the workpiece's position and thickness information to the computer and uses an automated height adjustment drive component to accommodate different workpiece thicknesses. However, this method suffers from drawbacks. The workpiece thickness information must be preset in the computer, making the process cumbersome, time-consuming, and labor-intensive. Furthermore, the control accuracy is affected by the accuracy of measurements and input results, making it prone to errors.

[0041] To address the aforementioned problems, this embodiment provides a laser cutting device that solves the issues of cumbersome operation and error-prone nature of existing laser cutting devices, and can be used in the field of laser cutting technology.

[0042] Reference Figures 1-2 The laser cutting device is used to perform laser cutting on the workpiece to be cut. Specifically, it includes a frame 1, a pressure block 2, and a cutting assembly 3. The frame 1 has a cutting platform 101, which is used to place the workpiece to be cut. The pressure block 2 is slidably disposed on the frame 1 in the vertical direction and placed on the upper surface of the workpiece to be cut, that is, the pressure block 2 can always be in contact with the upper surface of the workpiece to be cut. The cutting component 3 is slidably mounted on the frame 1 in the vertical direction. The cutting component 3 is used to perform laser cutting on the upper surface of the workpiece to be cut placed on the cutting platform 101. The cutting component 3 is connected to the pressure block 2 in a transmission manner. When the pressure block 2 slides in the vertical direction, the pressure block 2 can drive the cutting component 3 to slide in the vertical direction. The sliding directions of the pressure block 2 and the cutting component 3 are opposite. Therefore, when the thickness of the workpiece to be cut changes, it will drive the pressure block 2 to slide in the vertical direction. At this time, the pressure block 2 drives the cutting component 3 to move in the vertical direction. By adjusting the sliding distance between the pressure block 2 and the cutting component 3, the cutting component 3 can always be focused on the upper surface of the workpiece to be cut, so as to achieve automatic focusing.

[0043] Continue to refer to Figures 1-2The laser cutting device also includes a transmission rod 4 rotatably mounted on the frame 1. The transmission rod 4 has a first groove 41 and a second groove 42 opened along its length. The rotatable connection position between the transmission rod 4 and the frame 1 is located between the first groove 41 and the second groove 42. The pressure block 2 is slidably mounted on the first groove 41 and can rotate relative to the transmission rod 4. The cutting assembly 3 is slidably mounted on the second groove 42 and can rotate relative to the transmission rod 4. Thus, when the pressure block 2 slides relative to the frame 1 in the vertical direction, it can drive the transmission rod 4 to rotate relative to the frame 1. Since the rotatable connection position between the transmission rod 4 and the frame 1 is located between the first groove 41 and the second groove 42, the transmission rod 4 on one side of the second groove 42 will drive the cutting assembly 3 to move in the opposite direction. For example, when the thickness of the workpiece to be cut increases, the pressure block 2 slides vertically upward relative to the frame 1, and then drives the cutting component 3 to slide vertically downward relative to the frame 1 through the transmission rod 4. Therefore, as long as the sliding distance of the pressure block 2 and the cutting component 3 is adjusted, the cutting component 3 can always be focused on the upper surface of the workpiece to be cut.

[0044] Optionally, the pressure block 2 is provided with a first slide rod 201, which is slidably disposed in the first slide groove 41, and the cutting component 3 is provided with a second slide rod 301, which is slidably disposed in the second slide groove 42. In order to reduce the wear between the first slide rod 201 and the wall of the first slide groove 41, and the wear between the second slide rod 301 and the wall of the second slide groove 42, the first slide rod 201 is fitted with a first sleeve 202, and the second slide rod 301 is fitted with a second sleeve 302.

[0045] Optionally, in order to ensure that the pressure block 2 is always in contact with the upper surface of the workpiece to be cut, the weight of the pressure block 2 is greater than the weight of the cutting assembly 3, so that when the pressure block 2 and the cutting assembly 3 are not subjected to external force, the pressure block 2 can hang down naturally and always be in contact with the upper surface of the workpiece to be cut.

[0046] Reference Figures 1-4 The frame 1 includes a frame body 11 and a mounting component 12 connected to the frame body 11. The pressure block 2 and the cutting component 3 are both slidably mounted on the mounting component 12. The transmission rod 4 is rotatably mounted on the mounting component 12. The frame body 11 is provided with a slide rail 111, and the mounting component 12 is slidably mounted on the slide rail 111, so that the position of the mounting component 12 can be changed by sliding relative to the frame body 11, thereby changing the position of laser cutting. In addition, a driving component can be provided to drive the mounting component 12 to slide, so as to achieve continuous cutting.

[0047] Continue to refer to Figures 1-4The specific structure of the mounting component 12 is as follows: the mounting component 12 includes a mounting base 121, a support plate 122, and a vertical plate 123. The mounting base 121 is slidably mounted on the slide rail 111. Two support plates 122 are fixedly mounted on the mounting base 121, and the two support plates 122 are parallel and spaced apart. Each support plate 122 has a third sliding groove 1221 in the vertical direction. The pressure block 2 and the cutting component 3 are slidably mounted in the third sliding grooves 1221 of the two support plates 122, wherein both third sliding grooves 1221 extend in the vertical direction so that the pressure block 2 and the cutting component 3 can slide relative to the frame 1 in the vertical direction. The vertical plate 123 is connected to the support plate 122, and the transmission rod 4 is rotatably connected to the vertical plate 123.

[0048] Continue to refer to Figures 1-4 The mounting component 12 also includes a connecting plate 124, which is connected to the ends of both support plates 122. A vertical plate 123 is connected to the connecting plate 124 and extends vertically. Since the rotational connection between the transmission rod 4 and the frame 1 is located between the first slide groove 41 and the second slide groove 42, the vertical plate 123 can be positioned between the two support plates 122. The vertical plate 123 is connected to the connecting plate 124 and extends vertically to simplify the overall structure of the mounting component 12 as much as possible.

[0049] Continue to refer to Figures 1-4 The pressure block 2 includes an extension 21 that is vertically slidably disposed on the frame 1 and a positioning ring 22 disposed on the extension 21. The positioning ring 22 has a positioning hole 221, through which the laser emitted by the cutting assembly 3 can pass to the positioning hole 221 to perform laser cutting on the workpiece to be cut.

[0050] Continue to refer to Figures 1-4 The pressure block 2 also includes a roller 23 disposed on the positioning ring 22. The roller 23 can roll in contact with the upper surface of the workpiece to be cut, thereby reducing the frictional resistance between the pressure block 2 and the workpiece to be cut when the pressure block 2 slides relative to the workpiece. The roller 23 is located on the outside of the positioning ring 22 to avoid the roller 23 blocking the transmission path of the laser.

[0051] Continue to refer to Figures 1-4 The pressure block 2 also includes a fan 24 disposed on the extension 21, which is used to blow and suck up dust generated by laser cutting. Optionally, since the fan 24 is mounted on the extension 21, in order to ensure that the air outlet and air inlet paths of the fan 24 are not blocked, the extension 21 is provided with a ventilation hole 211, which is located near the air inlet of the fan 24 or near the air outlet of the fan 24.

[0052] Continue to refer to Figures 1-4The fan 24 is equipped with a filter 241. The filter 241 can block larger particles of debris and prevent them from entering the fan 24 and causing damage to the blades of the fan 24.

[0053] Continue to refer to Figures 1-4 The pressure block 2 also includes a reinforcing rib 25, and the extension 21 and the fan 24 are connected to the reinforcing rib 25 at the same time to strengthen the connection structure between the extension 21 and the fan 24.

[0054] Example 2

[0055] This embodiment provides another laser cutting device, which has a basically the same structure as the laser cutting device in Embodiment 1, except that the transmission connection structure between the pressure block 2 and the cutting component 3 is different.

[0056] In this embodiment, a fixed pulley is provided on the frame 1, and a rope is mounted on the fixed pulley. The two ends of the rope are connected to the pressure block 2 and the cutting component 3 respectively. So when the pressure block 2 moves in the vertical direction, it can drive the cutting component 3 to move in the opposite direction. This also enables the cutting component 3 to always focus on the upper surface of the workpiece to be cut, so as to achieve automatic focusing.

[0057] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A laser cutting apparatus for laser cutting a workpiece to be cut, characterized by, The utility model relates to a cutting machine, including: Rack (1) with cutting platform (101) for placing the workpiece to be cut; Press block (2) is arranged in the rack (1) along the vertical direction slidingly and is placed on the upper surface of the workpiece to be cut; Cutting assembly (3) is arranged in the rack (1) along the vertical direction slidingly, and the cutting assembly (3) is used for laser cutting to the upper surface of the workpiece to be cut placed on the cutting platform (101), the cutting assembly (3) is drivingly connected with the press block (2), when the press block (2) slides along the vertical direction, the press block (2) can drive the cutting assembly (3) to slide along the vertical direction, and the sliding direction of the press block (2) is opposite to that of the cutting assembly (3); Transmission rod (4) is rotatably arranged in the rack (1), the transmission rod (4) has first sliding slot (41) and second sliding slot (42) along the length direction, the rotation connecting position of the transmission rod (4) and the rack (1) is between the first sliding slot (41) and the second sliding slot (42), the press block (2) is slidably arranged in the first sliding slot (41) and can rotate relative to the transmission rod (4), the cutting assembly (3) is slidably arranged in the second sliding slot (42) and can rotate relative to the transmission rod (4); The press block (2) includes an extension piece (21) slidably arranged in the rack (1) in the vertical direction and a positioning ring (22) arranged on the extension piece (21), the positioning ring (22) has a positioning hole (221), and the laser emitted by the cutting assembly (3) can pass through the positioning hole (221) to perform laser cutting on the workpiece to be cut; The press block (2) further includes a roller (23) arranged on the positioning ring (22), and the roller (23) can be in rolling contact with the upper surface of the workpiece to be cut.

2. The laser cutting apparatus of claim 1, wherein, The rack (1) includes a rack body (11) and a mounting piece (12) connected to the rack body (11), the press block (2) and the cutting assembly (3) are slidably arranged in the mounting piece (12), and the transmission rod (4) is rotatably arranged in the mounting piece (12), the rack body (11) is provided with a sliding rail (111), and the mounting piece (12) is slidably arranged in the sliding rail (111).

3. The laser cutting apparatus of claim 2, wherein, The mounting piece (12) includes: A mounting seat (121) slidably arranged in the sliding rail (111); Two support plates (122) fixedly arranged on the mounting seat (121) are provided, the two support plates (122) are arranged in parallel and are spaced apart, the support plates (122) are each provided with a third sliding slot (1221) along the vertical direction, and the press block (2) and the cutting assembly (3) are respectively slidably arranged in the third sliding slots (1221) of the two support plates (122); A vertical plate (123) is connected to the support plates (122), and the transmission rod (4) is rotatably connected to the vertical plate (123).

4. The laser cutting apparatus of claim 3, wherein, The mounting piece (12) further comprises a connecting plate (124) connected with the end of the two support plates (122), and the vertical plate (123) is connected to the connecting plate (124) and extends in the vertical direction.

5. The laser cutting apparatus according to any one of claims 1 to 4, characterized in that, The briquetting machine (2) further comprises a fan (24) arranged on the extension piece (21).

6. The laser cutting apparatus of claim 5, wherein, The fan (24) is provided with a filter screen (241).

7. The laser cutting apparatus of claim 5, wherein, The briquetting machine (2) further comprises a reinforcing rib (25), and the extension piece (21) and the fan (24) are connected with the reinforcing rib (25).

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