Lifting structure and laser processing apparatus

Abstract

The application discloses a lifting structure and a laser processing device, wherein the lifting structure comprises a first frame, a second frame, a driving assembly and a guide shaft, the second frame is arranged on one side of the first frame in a preset direction and is connected with the first frame, the driving assembly is arranged on the first frame and is used for connecting a laser head and driving the laser head to lift, and the guide shaft extends along the preset direction and has two ends connected with the first frame and the second frame respectively, and the guide shaft is used for connecting the laser head to guide the laser head to move along the preset direction. The application connects the first frame and the second frame through the guide shaft, and when the driving assembly drives the laser head to move along the preset direction, the guide shaft guides the laser head to move along the preset direction, so that the stability of the laser head during lifting can be improved.

Description

Technical Field

[0001] This application relates to the field of laser engraving technology, specifically to a lifting structure and laser processing equipment. Background Technology

[0002] To process workpieces of different thicknesses, laser processing equipment needs to adjust the height of the laser head. When adjusting the height of the laser head, a lifting device is used to drive the laser head to rise and fall. However, because the laser head is relatively heavy, it is easy to shake when rising and falling, which reduces the stability of the lifting and falling and further affects the laser processing effect. Summary of the Invention

[0003] This application provides a lifting structure and a laser processing device, which can improve the stability of the laser head during lifting.

[0004] Firstly, the lifting structure provided in this application includes:

[0005] First frame;

[0006] The second frame is located on one side of the first frame in a preset direction and is connected to the first frame;

[0007] A drive assembly, located in the first frame, is used to connect to the laser head and drive the laser head to move up and down;

[0008] A guide shaft extends along the preset direction, and its two ends are respectively connected to the first frame and the second frame. The guide shaft is used to connect the laser head to guide the laser head to move along the preset direction.

[0009] In an optional embodiment, the laser head is provided with a threaded hole, the driving assembly includes a driving device and a lead screw, the lead screw extends along the preset direction, one end of the lead screw is rotatably connected to the first frame, the other end of the lead screw passes through the threaded hole, the driving device is disposed on the first frame, and the driving device is used to drive the lead screw to rotate, thereby driving the laser head to move along the preset direction.

[0010] In an optional embodiment, the driving device includes a drive motor, a drive wheel, a timing belt, and a first transmission wheel. One end of the lead screw is connected to the first transmission wheel. The timing belt connects the drive wheel and the first transmission wheel. The drive motor is mounted on the first frame and is used to drive the drive wheel to rotate, thereby driving the first transmission wheel to rotate via the timing belt, and in turn driving the lead screw to rotate.

[0011] In an optional embodiment, the number of lead screws is at least two, the at least two lead screws are spaced apart, the number of first transmission wheels is at least two, the drive assembly includes multiple idler wheels, the synchronous belt connects the drive wheel, the first transmission wheels and the multiple idler wheels, and at least one idler wheel is provided between the two first transmission wheels.

[0012] In an optional embodiment, the drive motor is located on the side of the first frame closer to the second frame.

[0013] In an optional embodiment, the drive assembly further includes a tensioning pulley and a tensioning component. The tensioning pulley is slidably connected to the first frame. The timing belt connects the drive pulley, the first transmission pulley, and the tensioning pulley. One end of the tensioning component is connected to the first frame, and the other end of the tensioning component is connected to the tensioning pulley. The tensioning component is used to squeeze the tensioning pulley to tension the timing belt.

[0014] In an optional embodiment, a cover plate is provided on the side of the first frame away from the second frame, the cover plate and the first frame forming a receiving space, and the drive wheel, the timing belt and the first transmission wheel are received in the receiving space.

[0015] In an optional embodiment, the lifting structure includes a plurality of spaced columns, the two ends of which are respectively connected to the first frame and the second frame, and the two ends of the guide shaft are respectively connected to the first frame and the second frame.

[0016] In an optional embodiment, the first frame and the second frame form a clearance space to avoid the laser head.

[0017] In an optional embodiment, the lifting structure further includes a side plate, the two ends of which are connected to the first frame and the second frame, and cover the installation space formed by the first frame and the second frame in the preset direction.

[0018] In an optional embodiment, the lifting structure further includes a sealing and cleaning component disposed on the side of the side plate opposite to the first frame and the second frame.

[0019] Secondly, the laser processing equipment provided in this application includes a laser head and a lifting structure as described in any one of the first aspects, wherein the laser head is connected to the driving component and the guide shaft.

[0020] In an optional embodiment, the laser processing equipment includes a base plate and a fixed stand erected on one side of the base plate, a flexible cable chain mechanism, and connecting wires. The lifting structure is fixedly connected to the fixed stand, and the connecting wires are disposed within the flexible cable chain mechanism. The two ends of the connecting wires are connected to the laser head and functional devices on the fixed stand, and the two ends of the flexible cable chain mechanism are connected to the laser head and the fixed stand.

[0021] In this application, the lifting structure includes a first frame, a second frame, a drive assembly, and a guide shaft. The second frame is located on one side of the first frame in a preset direction and is connected to the first frame. The drive assembly is located in the first frame and is used to connect to the laser head and drive the laser head to move up and down. The guide shaft extends along the preset direction, and its two ends are respectively connected to the first frame and the second frame. The guide shaft is used to connect the laser head to guide the laser head to move along the preset direction. This application uses a guide shaft connecting the first frame and the second frame. When the drive assembly drives the laser head to move along the preset direction, the guide shaft guides the laser head to move along the preset direction, which can improve the stability of the laser head during lifting and lowering. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the lifting structure provided in this application;

[0024] Figure 2 This is an exploded structural diagram of one embodiment of the lifting structure provided in this application;

[0025] Figure 3 This is a first-view structural diagram of an embodiment of the lifting structure provided in this application when the cover plate is removed;

[0026] Figure 4 This is a second-view structural diagram of an embodiment of the lifting structure provided in this application when the cover plate is removed;

[0027] Figure 5 yes Figure 4 A detailed structural diagram of region A in the middle;

[0028] Figure 6 This is a schematic diagram of an embodiment of the lifting structure provided in this application when the cover plate and side plate are removed;

[0029] Figure 7 This is a schematic diagram of the overall structure of one embodiment of the laser processing equipment provided in this application;

[0030] Figure 8 This is a schematic diagram of the internal structure of one embodiment of the laser processing equipment provided in this application. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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 this application. 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] Therefore, this application provides a lifting structure, which includes a first frame, a second frame, a driving component, and a guide shaft. The second frame is located on one side of the first frame in a preset direction and is connected to the first frame. The driving component is located in the first frame and is used to connect to the laser head and drive the laser head to move up and down. The guide shaft extends along the preset direction, and its two ends are respectively connected to the first frame and the second frame. The guide shaft is used to connect the laser head to guide the laser head to move along the preset direction. This application provides a guide shaft connecting the first frame and the second frame. When the driving component drives the laser head to move along the preset direction, the guide shaft guides the laser head to move along the preset direction, which can improve the stability of the laser head during lifting and lowering.

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] Please refer to Figures 1 to 6 This application provides a lifting structure 10 for lifting a laser head 14, which is used for laser processing. The lifting structure 10 includes a first frame 11, a second frame 191, a drive assembly 19, and a guide shaft 132.

[0037] In this embodiment, the second frame 191 is disposed on one side of the first frame 11 in the preset direction F1 and is connected to the first frame 11. The drive assembly 19 is disposed in the first frame 11 and is used to connect the laser head 14 and drive the laser head 14 to move up and down. The guide shaft 132 extends along the preset direction F1, and its two ends are respectively connected to the first frame 11 and the second frame 191. The guide shaft 132 is used to connect the laser head 14 to guide the laser head 14 to move along the preset direction F1. This application provides a guide shaft connecting the first and second frames. When the drive assembly drives the laser head to move along the preset direction, the guide shaft guides the laser head to move along the preset direction, which can improve the stability of the laser head during lifting and lowering.

[0038] In some embodiments, the first frame 11 and the second frame 191 are hollow frames. The first frame 11 and the second frame 191 form a clearance space to allow the laser head 14 to move freely. The first frame 11 includes multiple side frames that enclose the clearance space to allow the laser head 14 to move freely. For example, the second frame 191 includes four side frames that enclose the clearance space to allow the laser head 14 to move freely. In other embodiments, the first frame 11 may include three, five, or other numbers of side frames, and the second frame 191 may include three, five, or other numbers of side frames, depending on the specific configuration.

[0039] In one specific embodiment, the laser head 14 is provided with a through hole 141. One end of the guide shaft 132 passes through the through hole 141, and the through hole 141 cooperates with the guide shaft 132 to guide the laser head 14 to move along a preset direction F1. The preset direction F1 can be a vertical direction or other directions, depending on the specific situation, and this application does not limit this. This application provides a through hole 141 in the laser head 14, and the through hole 141 cooperates with the guide shaft 132. When the driving device 12 drives the laser head 14 to move along the preset direction F1, the guide shaft 132 guides the laser head 14 to move along the preset direction F1, which can improve the stability of the laser head 14 during movement.

[0040] In some embodiments, the drive assembly 19 can be a device such as a cylinder or a hydraulic cylinder that can provide linear driving force. The drive assembly 19 is directly connected to the laser head 14 and drives the laser head 14 to move along a preset direction F1.

[0041] To improve the lifting accuracy of the laser head 14, in this embodiment, the laser head 14 is provided with a threaded hole 142. Specifically, the laser head 14 is provided with a lead screw nut, which cooperates with the lead screw 131, and the threaded hole 142 is formed on the lead screw nut. The drive assembly 19 includes a drive device 12 and a lead screw 131. The lead screw 131 extends along a preset direction F1, one end of the lead screw 131 is rotatably connected to the first frame 11, and the other end of the lead screw 131 passes through the threaded hole 142. The drive device 12 is disposed on the first frame 11 and is used to drive the lead screw 131 to rotate, thereby moving the laser head 14 along the preset direction F1. By using the drive device 12 to drive the lead screw 131 to rotate, thereby moving the laser head 14 along the preset direction F1, the laser head 14 can be lifted and lowered with high precision.

[0042] In some embodiments of this application, the drive device 12 includes a drive motor 121, a drive wheel 122, a timing belt 125, a first transmission wheel 124, and one end of the lead screw 131 is connected to the first transmission wheel 124.

[0043] In one specific embodiment, the drive pulley 122, the timing belt 125, and the first transmission pulley 124 are all located on the side of the first frame 11 away from the second frame 191. One end of the lead screw 131 passes through the first frame 11 and is connected to the first transmission pulley 124. Specifically, one end of the lead screw 131 passes through a bearing, then through the first frame 11, then through another bearing, and finally is bolted to the first transmission pulley 124. The timing belt 125 connects the drive pulley 122 and the first transmission pulley 124. The drive motor 121 is mounted on the first frame 11. The drive motor 121 drives the drive pulley 122 to rotate, thereby driving the first transmission pulley 124 to rotate via the timing belt 125, and thus driving the lead screw 131 to rotate. Through the sequential transmission of the drive pulley 122, timing belt 125, and first transmission pulley 124, the power of the drive motor 121 is transmitted to the drive motor 121. The transmission ratio can be changed by adjusting the pulley combination, thereby improving the transmission effect. The drive motor 121 can be a stepper motor or a servo motor. In other embodiments, the output end of the drive motor 121 can also be directly connected to the first transmission wheel 124. The drive motor 121 directly drives the first transmission wheel 124 to rotate, thereby driving the lead screw 131 to rotate and realizing the lifting and lowering of the laser head 14.

[0044] In one specific embodiment, the drive pulley 122, the timing belt 125, and the first transmission pulley 124 are disposed on the side of the first frame 11 near the second frame 191. One end of the lead screw 131 is directly connected to the first transmission pulley 124 without passing through the first frame 11 to connect to the first transmission pulley 124.

[0045] In some embodiments, the drive motor 121 is disposed on the side of the first frame 11 closer to the second frame 191, thereby utilizing the space between the first frame 11 and the second frame 191 to reduce the size in the preset direction F1. In some embodiments, the drive motor 121 may also be disposed on the side of the first frame 11 away from the second frame 191.

[0046] In this embodiment, there are at least two lead screws 131, spaced apart. There are also at least two first transmission wheels 124. The driving device 12 includes multiple idler wheels 123. A synchronous belt 125 connects the drive wheel 122, the first transmission wheels 124, and the multiple idler wheels 123. At least one idler wheel 123 is located between the two first transmission wheels 124. The synchronous belt 125 connects the drive wheel 122, the first transmission wheels 124, and the multiple idler wheels 123, driving the drive wheel 122, the multiple first transmission wheels 124, and the multiple idler wheels 123 to rotate synchronously. The multiple idler wheels 123 are used to change the direction of rotation of the first transmission wheels 124 by changing the direction of the synchronous belt 125. By providing at least two lead screws 131, the driving device 12 drives the drive wheel 122 to rotate, causing the multiple first transmission wheels 124 to rotate synchronously, which in turn drives the multiple lead screws 131 to rotate synchronously, thus achieving the lifting and lowering of the laser head 14 and improving the stability of the laser head 14's lifting and lowering.

[0047] In this embodiment, the drive device 12 includes a tensioning wheel 126 and a tensioning assembly 127. The tensioning wheel 126 is slidably connected to the first frame 11. The synchronous belt 125 connects the drive wheel 122, the first transmission wheel 124, and the tensioning wheel 126. One end of the tensioning assembly 127 is connected to the first frame 11, and the other end is connected to the tensioning wheel 126. The tensioning assembly 127 compresses the tensioning wheel 126 to tension the synchronous belt 125. The tensioning assembly 127 may include an elastic object such as a spring or a sheet to elastically compress or pull the tensioning wheel 126. When tensioning is required, the tensioning wheel 126 can be released, allowing it to slide under the action of the tensioning assembly 127, thereby tensioning the synchronous belt 125. By compressing the tensioning wheel 126 with the tensioning assembly 127 to tension the synchronous belt 125, the synchronous belt 125 can be kept taut, improving transmission efficiency.

[0048] In one specific embodiment, combined with Figure 3 and Figure 4 The drive unit 12 includes multiple idler pulleys 123. A synchronous belt 125 connects the drive pulley 122, the first transmission pulley 124, and the multiple idler pulleys 123. At least one idler pulley 123 is provided between two first transmission pulleys 124. One or more idler pulleys 123 may be provided between two first transmission pulleys 124. Figure 3In the configuration, viewed from the first frame 11 towards the second frame 191 (i.e., from bottom to top), the drive wheel 122, the first idler wheel 123, the first first transmission wheel 124, the second idler wheel 123, the second first transmission wheel 124, the tension wheel 126, the third idler wheel 123, the fourth idler wheel 123, the third first transmission wheel 124, the fifth idler wheel 123, the fourth first transmission wheel 124, and the sixth idler wheel 123 are arranged sequentially in a counter-clockwise direction. For example, when the drive device 12 drives the drive wheel 122 to rotate counter-clockwise, the first idler wheel 123 will rotate clockwise, and the first first transmission wheel 124 will rotate counter-clockwise. The second idler wheel 123 rotates counter-clockwise, and the second first transmission wheel 124 rotates counter-clockwise. Tensioner wheel 126 rotates clockwise, third idler wheel 123 rotates clockwise, fourth idler wheel 123 rotates clockwise, third first drive wheel 124 rotates counterclockwise, fifth idler wheel 123 rotates clockwise, fourth first drive wheel 124 rotates counterclockwise, and sixth idler wheel 123 rotates clockwise.

[0049] In one specific embodiment, see Figure 5 The tensioning assembly 127 includes a slide table 1271, a slide groove 1272, a sleeve rod 1273, and a spring 1274. A baffle 119 and a screw 118 are provided on the first frame 11. A tensioning wheel 126 is disposed on the slide table 1271, the slide groove 1272 is formed on the slide table 1271, one end of the sleeve rod 1273 is fixed to the slide table 1271, and the other end of the sleeve rod 1273 passes through the baffle 119 and is slidably connected to the baffle 119. The screw 118 passes through the slide groove 1272 and is threadedly connected to the first frame 11. The spring 1274 is sleeved on the sleeve rod 1273, one end of the spring 1274 abuts against the baffle 119, and the other end of the spring 1274 abuts against the slide table 1271. When screw 118 presses against slide 1271, it restricts the movement of slide 1271, thereby restricting the movement of tension wheel 126. When screw 118 releases pressure on slide 1271, it releases the restriction on the movement of slide 1271, thereby releasing the restriction on the movement of tension wheel 126. At this time, spring 1274 presses against tension wheel 126, applying elastic force to tension wheel 126, causing tension wheel 126 to move, thereby tensioning synchronous belt 125. Then screw 118 is tightened, restricting the movement of tension wheel 126 again.

[0050] In some embodiments, the drive wheel 122, the first transmission wheel 124, the plurality of idler wheels 123, and the tension wheel 126 are at the same height. The first transmission wheel 124, the plurality of idler wheels 123, and the tension wheel 126 are fixed to the first frame 11. The drive device 12 drives the drive wheel 122 to rotate, which drives the plurality of first transmission wheels 124 to rotate synchronously, thereby driving the plurality of lead screws 131 to rotate synchronously, realizing the lifting and lowering of the laser head 14.

[0051] In this embodiment, the drive wheel 122, the first transmission wheel 124, the plurality of idler wheels 123, and the tension wheel 126 can be gears, and the timing belt 125 is a belt. The drive wheel 122, the first transmission wheel 124, the plurality of idler wheels 123, and the tension wheel 126 mesh with the timing belt 125. In other embodiments, the drive wheel 122, the first transmission wheel 124, the plurality of idler wheels 123, and the tension wheel 126 can be pulleys, and the timing belt 125 is a conveyor belt. The drive wheel 122, the first transmission wheel 124, the plurality of idler wheels 123, and the tension wheel 126 are frictionally connected to the timing belt 125, and the timing belt 125 can also be a chain.

[0052] In some embodiments, the number of teeth on the first transmission wheel 124 is greater than the number of teeth on the driving wheel 122. For example, the first transmission wheel 124 has 32 teeth, and the driving wheel 122 has 16 teeth. The first transmission wheel 124 is connected to the lead screw 131. Since the number of teeth on the first transmission wheel 124 is greater than the number of teeth on the driving wheel 122, and the angular velocity of the first transmission wheel 124 is less than the angular velocity of the driving wheel 122, it can prevent the angular velocities of the first transmission wheel 124 and the lead screw 131 from being too high, thereby preventing the lead screw 131 from jamming due to excessive angular velocity.

[0053] In this embodiment, the number of guide shafts 132 is at least two. Multiple guide shafts 132 are spaced apart. The number of guide shafts 132 and lead screws 131 can be the same or different; the number of guide shafts 132 and lead screws 131 can be two, three, four, or more, depending on the specific circumstances.

[0054] In some embodiments, the drive assembly 19 can also drive the laser head 14 to move via a gear and rack mechanism. In some embodiments, the drive assembly 19 can also drive the laser head 14 to move via a timing belt.

[0055] In this embodiment, a cover plate 193 is provided on the side of the first frame 11 away from the second frame 191. The cover plate 193 and the first frame 11 form a receiving space 110, which houses the drive wheel 122, the timing belt 125, and the first transmission wheel 124. The receiving space 110 is used to house the drive wheel 122, the timing belt 125, and the first transmission wheel 124. By housing the drive wheel 122, the timing belt 125, and the first transmission wheel 124 in the receiving space 110, damage to the drive device 12 can be avoided.

[0056] In this embodiment, the lifting structure 10 includes a plurality of spaced columns 194, with both ends of the columns 194 connected to the first frame 11 and the second frame 191, respectively. The guide shaft 132 has both ends connected to the first frame 11 and the second frame 191, respectively. Specifically, the laser head 14 moves along a preset direction F1 between the first frame 11 and the second frame 191. Since the second frame 191 is a hollow frame, it forms a clearance space. When the laser head 14 rises, it can extend out of the second frame 191 through this clearance space.

[0057] In some embodiments, the lifting structure 10 includes a side plate 181, the two ends of which are connected to the first frame 11 and the second frame 191, and cover the installation space formed by the first frame 11 and the second frame 191 in a preset direction F1. For example, the side plate 181 is connected between the edge of the first frame 11 and the edge of the second frame 191, and there are three side plates 181. The three side plates 181 are fixed to the edges of the first frame 11 and the second frame 191 from three sides.

[0058] In some embodiments, the lifting structure 10 further includes a sealing and cleaning component 182, which is disposed on the side of the side plate 181 opposite to the first frame 11 and the second frame 191. The sealing and cleaning component 182 can serve to block light and remove dust. In some embodiments, the sealing and cleaning component 182 can be a brush, silicone strip, rubber strip, foam strip, etc., and can be set according to specific circumstances.

[0059] The first frame 11 and the second frame 191 are made of aluminum alloy, and the side panel 181 is made of plastic, which reduces the weight of the lifting structure 10. In other embodiments, the first frame 11, the second frame 191, and the side panel 181 can be made of aluminum alloy, plastic, or sheet metal, depending on the specific circumstances.

[0060] In some embodiments, a housing 183 is provided on the side of the second frame 191 away from the first frame 11. A receiving space is formed within the housing 183, and the laser head 14 is received within and connected to the housing 183. By covering the laser head 14 with the housing 183, foreign objects can be prevented from entering the laser head 14. A sealing cleaning component 182 can be located between the housing 183 and the second frame 191, sealing the space between them and preventing laser transmission through this space, thus ensuring laser safety. Simultaneously, dust on the housing 183 can be cleaned when it moves along a preset direction F1. The housing 183 can filter out the laser emitted from the laser head 14, thereby ensuring user safety.

[0061] In some embodiments, a sealing strip 192 is provided between the second frame 191 and the side plate 181 to seal the gap between the second frame 191 and the side plate 181. The sealing strip 192 can be a silicone strip, rubber strip, silicone ring, rubber ring, foam, etc., and can be set according to specific circumstances.

[0062] Please refer to Figures 7 to 8 This application also provides a laser processing device 20, which includes a lifting structure 10 and a laser head 14 as described above. The laser head 14 is connected to a drive assembly 19 and a guide shaft 132. The laser processing device 20 can be a laser welding machine, a laser cutting machine, a laser engraving machine, etc.

[0063] In some embodiments, the laser head 14 may be a galvanometer laser head, including a laser and a galvanometer assembly. In other embodiments, the laser head 14 may not be a galvanometer laser head, but other types of laser heads.

[0064] In this embodiment, the laser processing equipment 20 includes a base plate 21, a fixed support 22 erected on one side of the base plate 21, a flexible cable chain mechanism 23, and connecting wires. The lifting structure 10 is fixedly connected to the fixed support 22. Specifically, one side edge of the first frame 11 and the second frame 191 is fixedly connected to the fixed support 22, and the other three side edges of the first frame 11 and the second frame 191 are respectively connected to three side plates 181.

[0065] In this embodiment, the laser processing equipment 20 includes a flexible cable chain mechanism 23. The flexible cable chain mechanism 23 has connecting wires inside, with both ends of the connecting wires connecting the laser head 14 and functional devices on the fixed support 22. When the laser head 14 moves up and down relative to the fixed support 22, the flexible cable chain mechanism 23 moves up and down with the laser head 14. The cable bundle is protected inside the cable chain structure, preventing scratches, and is constrained by the structure, ensuring normal signal conduction.

[0066] This application utilizes a motion guide composed of lead screws and guide shafts to achieve higher precision in the vertical movement of the laser head. The drive motor is concealed inside the first frame and drives multiple lead screws to rotate synchronously via a timing belt, resulting in more stable structural support. The timing belt is kept taut by pressing the tensioning wheel through a tensioning assembly, improving transmission efficiency. Sealing strips mounted on the three plastic side panels provide light shielding and dust removal. During the laser head's vertical movement, the flexible cable chain structure on the back restrains and protects the wiring harness. The first and second frames are made of aluminum alloy, while the side panels are made of plastic, reducing the weight of the lifting structure.

[0067] Compared to related technologies, the lifting structure includes: a first frame, a second frame, a drive assembly, and a guide shaft. The second frame is located on one side of the first frame in a preset direction and is connected to the first frame. The drive assembly is located in the first frame and is used to connect to the laser head and drive the laser head to move up and down. The guide shaft extends along the preset direction, and its two ends are respectively connected to the first frame and the second frame. The guide shaft is used to connect the laser head to guide the laser head to move along the preset direction. This application sets a guide shaft connecting the first frame and the second frame. When the drive assembly drives the laser head to move along the preset direction, the guide shaft guides the laser head to move along the preset direction, which can improve the stability of the laser head during lifting and lowering.

[0068] The above provides a detailed description of the lifting structure and laser processing equipment provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

[0069] It should be noted that when the above embodiments of this application are applied to specific products or technologies, and user-related data is involved, user permission or consent is required, and the collection, use and processing of related data must comply with the relevant laws, regulations and standards of the relevant countries and regions.

Claims

1. A lifting structure, characterized in that, For raising and lowering the laser head, the raising and lowering structure includes: First frame; The second frame is located on one side of the first frame in a preset direction and is connected to the first frame; A drive assembly, located in the first frame, is used to connect to the laser head and drive the laser head to move up and down; A guide shaft extends along the preset direction, and its two ends are respectively connected to the first frame and the second frame. The guide shaft is used to connect the laser head to guide the laser head to move along the preset direction.

2. The lifting structure according to claim 1, characterized in that, The laser head is provided with a threaded hole. The driving assembly includes a driving device and a lead screw. The lead screw extends along the preset direction. One end of the lead screw is rotatably connected to the first frame, and the other end of the lead screw passes through the threaded hole. The driving device is disposed on the first frame and is used to drive the lead screw to rotate, thereby moving the laser head along the preset direction.

3. The lifting structure according to claim 2, characterized in that, The driving device includes a drive motor, a drive wheel, a timing belt, and a first transmission wheel. One end of the lead screw is connected to the first transmission wheel. The timing belt connects the drive wheel and the first transmission wheel. The drive motor is mounted on the first frame and is used to drive the drive wheel to rotate, thereby driving the first transmission wheel to rotate via the timing belt, and in turn driving the lead screw to rotate.

4. The lifting structure according to claim 3, characterized in that, The number of lead screws is at least two, and the at least two lead screws are spaced apart. The number of first transmission wheels is at least two. The drive assembly includes multiple idler wheels. The synchronous belt connects the drive wheel, the first transmission wheel, and the multiple idler wheels. At least one idler wheel is provided between the two first transmission wheels.

5. The lifting structure according to claim 3, characterized in that, The drive motor is located on the side of the first frame closer to the second frame.

6. The lifting structure according to claim 3, characterized in that, The drive assembly further includes a tensioning pulley and a tensioning component. The tensioning pulley is slidably connected to the first frame. The timing belt connects the drive pulley, the first transmission pulley, and the tensioning pulley. One end of the tensioning component is connected to the first frame, and the other end of the tensioning component is connected to the tensioning pulley. The tensioning component is used to squeeze the tensioning pulley to tension the timing belt.

7. The lifting structure according to claim 3, characterized in that, A cover plate is provided on the side of the first frame away from the second frame. The cover plate and the first frame form a receiving space, and the drive wheel, the timing belt, and the first transmission wheel are received in the receiving space.

8. The lifting structure according to any one of claims 1 to 7, characterized in that, The lifting structure includes multiple spaced columns, with both ends of each column connected to the first frame and the second frame, and both ends of the guide shaft connected to the first frame and the second frame, respectively; and / or, The first frame and the second frame form a clearance space to avoid the laser head.

9. The lifting structure according to any one of claims 1 to 7, characterized in that, The lifting structure also includes a side plate, the two ends of which are connected to the first frame and the second frame, and cover the installation space formed by the first frame and the second frame in the preset direction.

10. The lifting structure according to claim 9, characterized in that, The lifting structure also includes a sealing and cleaning component, which is located on the side of the side plate away from the first frame and the second frame.

11. A laser processing device, characterized in that, The laser processing equipment includes a laser head and a lifting structure as described in any one of claims 1 to 10, wherein the laser head is connected to the driving assembly and the guide shaft.

12. The laser processing equipment according to claim 11, characterized in that, The laser processing equipment includes a base plate and a fixed support frame erected on one side of the base plate, a flexible drag chain mechanism, and connecting wires. The lifting structure is fixedly connected to the fixed support frame. The connecting wire is located inside the flexible cable chain mechanism. The two ends of the connecting wire are connected to the laser head and the functional devices on the fixed stand. The two ends of the flexible cable chain mechanism are connected to the laser head and the fixed stand.

Images