Exchange table device and laser cutting machine

Abstract

The application discloses a kind of exchange workbench device and laser cutting machine.The exchange workbench device includes fixed support table, first workbench, second workbench, first transmission assembly and second transmission assembly.The first workbench and the second workbench are spaced apart in vertical direction and installed on the fixed support table;first traction device is connected to the two sides of the first chain along the first horizontal direction, the first traction device is connected with the first workbench, and the first chain moves along the second horizontal direction to drive the first workbench to move;second traction device is connected to the two sides of the second chain along the first horizontal direction, the second traction device is connected with the second workbench, and the second chain moves along the second horizontal direction to drive the second workbench to move.Bilateral traction makes the first chain and the second chain more balanced in the process of rotation, avoids chain breaking and even workbench derailment due to uneven force.

Description

Technical Field

[0001] This application relates to the field of laser processing technology, and in particular to an exchange worktable device and a laser cutting machine. Background Technology

[0002] The dual-table laser cutting machine allows one worktable to cut steel plates while the other worktable can be used for unloading and loading, thus reducing the production cycle and improving production efficiency.

[0003] In related technologies, drive sprockets and chains are typically used to achieve the exchange of dual worktables. With the continuous improvement of technology, laser power is getting higher and higher, machine tool processing area is getting larger and larger, the thickness of laser-cut materials is also increasing, and the load on the worktable is also getting larger and larger. This leads to problems such as chain breakage and worktable derailment when switching the worktable to the loading position, causing equipment downtime for repair, affecting production efficiency and equipment stability. Utility Model Content

[0004] This application provides an exchange workbench device and a laser cutting machine, which makes the first chain and the second chain more evenly stressed during rotation, avoiding chain breakage or even workbench derailment due to uneven stress.

[0005] The exchange workbench device proposed in this application includes:

[0006] Fixed support platform;

[0007] The first workbench and the second workbench are installed at intervals along the vertical direction on the fixed support platform;

[0008] A first transmission assembly is disposed on the fixed support platform. The first transmission assembly includes a first chain, and a first traction device is connected to both sides of the first chain along a first horizontal direction. The first traction device is connected to the first worktable. The first chain moves along a second horizontal direction to drive the first work platform to move. The second horizontal direction is perpendicular to the first horizontal direction.

[0009] A second transmission assembly is disposed on the fixed support platform. The second transmission assembly includes a second chain, and second traction devices are connected to both sides of the second chain along a first horizontal direction. The second traction devices are connected to the second worktable, and the second chain moves along a second horizontal direction to drive the second work platform to move.

[0010] Optionally, the first traction device includes a first pin, a first traction block, and a second traction block. The first pin passes through a link of the first chain, with one end of the first pin connected to the first traction block and the other end connected to the second traction block.

[0011] The second traction device includes a second pin, a third traction block, and a fourth traction block. The second pin passes through a link of the second chain, with one end connected to the third traction block and the other end connected to the fourth traction block.

[0012] Optionally, the first traction device includes a first traction hook disposed on the first workbench. The first traction hook includes a first connecting part and a first snap-fit ​​part. The first connecting part is used to connect with the first workbench, and the first snap-fit ​​part is used to engage with the first traction block and the second traction block.

[0013] The second traction device includes a second traction hook disposed on the second workbench. The second traction hook includes a second connecting part and a second locking part. The second connecting part is used to connect with the second workbench, and the second locking part is used to engage with the third traction block and the fourth traction block.

[0014] Optionally, the exchange workbench device further includes a first positioning guide and a second positioning guide, both of which are mounted on the fixed support platform;

[0015] The first chain includes a plurality of first links, each of which includes a first outer link plate and a first inner link plate arranged in parallel, and the first positioning guide is accommodated in the gap between the first outer link plate and the first inner link plate;

[0016] The second chain includes a plurality of second chain links, each second chain link including a second outer chain plate and a second inner chain plate arranged in parallel, and the second positioning guide is accommodated in the gap between the second outer chain plate and the second inner chain plate.

[0017] Optionally, the first transmission assembly further includes a first sprocket and a second sprocket spaced apart, with both ends of the first chain sleeved on the first sprocket and the second sprocket, and the length of the first positioning guide is equal to the center distance between the first sprocket and the second sprocket.

[0018] The second transmission assembly further includes a third sprocket and a fourth sprocket spaced apart, with the two ends of the second chain sleeved on the third sprocket and the fourth sprocket, and the length of the second positioning guide is equal to the center distance between the third sprocket and the fourth sprocket.

[0019] Optionally, the fixed support platform includes a frame, with side beams provided on both sides of the frame along the first horizontal direction, and first guide rail units and second guide rail units spaced apart on the side beams along the vertical direction.

[0020] The first worktable includes a first roller assembly, which is movably mounted on the first guide rail unit; the second worktable includes a second roller assembly, which is movably mounted on the second guide rail unit.

[0021] Optionally, the first guide rail unit includes a first square guide rail and a first flat guide rail, and along the first horizontal direction, the first square guide rail and the first flat guide rail are respectively disposed on the side beams on both sides of the frame.

[0022] The first roller assembly includes a first conical roller and a first flat roller, wherein the first conical roller is movably disposed on the first square guide rail, and the first flat roller is movably disposed on the first flat guide rail;

[0023] The second guide rail unit includes a second square guide rail and a second flat guide rail. Along the first horizontal direction, the second square guide rail and the second flat guide rail are respectively disposed on the side beams on both sides.

[0024] The second roller assembly includes a second conical roller and a second roller, the second conical roller being movably disposed on the second square guide rail, and the second flat roller being movably disposed on the second flat guide rail.

[0025] Optionally, the exchange workbench device further includes a first drive assembly and a second drive assembly, both of which are mounted on the fixed support platform;

[0026] The first drive assembly includes a first motor and a first drive shaft connected to the first motor. The first drive shaft is connected to the first chain. Under the drive of the first motor, the first drive shaft drives the first chain to rotate so that the first worktable moves along the second horizontal direction.

[0027] The second drive assembly includes a second motor and a second drive shaft connected to the second motor. The second drive shaft is connected to the second chain. Under the drive of the second motor, the second drive shaft drives the second chain to rotate so that the second worktable moves along the second horizontal direction.

[0028] Optionally, the exchange workbench device further includes a first tensioning mechanism and a second chain tensioning mechanism, both of which are mounted on the fixed support platform;

[0029] The first tensioning mechanism is connected to the first chain, and the first tensioning mechanism is used to adjust the tension of the first chain;

[0030] The second chain tensioning mechanism is connected to the second chain and is used to adjust the tension of the second chain.

[0031] This application also proposes a laser cutting machine, including a cutting bed and an exchange table device as described above, wherein the fixed support platform of the exchange table device is disposed opposite to the cutting bed, and the exchange table device is used to load the cutting bed.

[0032] In the exchange worktable device and laser cutting machine provided in this application embodiment, traction devices are provided on the chains on both the left and right sides of the fixed support platform, and the traction devices are connected to the left and right sides of each chain. When the worktable is subjected to heavy load exchange, the traction force of the traction device is consistent with the transmission direction of the chain, so that the double-sided traction on a single chain makes the chain more evenly stressed, thereby preventing the first chain and the second chain from breaking. The double-sided traction makes the first chain and the second chain more evenly stressed during rotation, avoiding chain breakage or even worktable derailment due to uneven stress. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of the exchange workbench device provided in the embodiments of this application.

[0035] Figure 2 This is a schematic diagram of the exchange workbench device provided in an embodiment of this application in another state.

[0036] Figure 3 for Figure 2 An enlarged schematic diagram of point A of the exchange workbench device shown.

[0037] Figure 4 This is a schematic diagram of the structure of the first transmission component and the first traction device provided in the embodiments of this application.

[0038] Figure 5 This is a schematic diagram of the structure of the first traction device provided in the embodiments of this application.

[0039] Figure 6 An exploded view of the first transmission component and the first traction device provided in the embodiments of this application.

[0040] Figure 7This is a schematic diagram of the structure of the first traction hook provided in an embodiment of this application.

[0041] Figure 8 This is a schematic diagram of the structure of the second traction hook provided in an embodiment of this application.

[0042] Figure 9 This is a structural schematic diagram of the fixed support platform provided in an embodiment of this application.

[0043] Figure 10 for Figure 9 An enlarged schematic diagram of point C on the fixed support platform shown.

[0044] Figure 11 This is a schematic diagram of the structure of the first transmission component provided in an embodiment of this application.

[0045] Figure 12 This is a structural schematic diagram of the fixed support platform provided in an embodiment of this application from another perspective.

[0046] Figure 13 This is a schematic diagram of the structure of the first tensioning mechanism and the first chain provided in the embodiments of this application.

[0047] Figure 14 This is a schematic diagram of the structure of a laser cutting machine provided in an embodiment of this application.

[0048] Explanation of icon numbers:

[0049] Exchange workbench device 100, fixed support platform 10, frame 11, side beam 12;

[0050] First worktable 21, first roller assembly 211, second worktable 22, second roller assembly 221;

[0051] First transmission assembly 31, first chain 311, first chain link 3111, first outer chain plate 3112, first inner chain plate 3113, first sprocket 312, second sprocket 313;

[0052] First traction device 41, first pin 411, first traction block 412, second traction block 413, first traction hook 414, first connecting part 4141, first snap-fit ​​part 4142, first plate 4142a, second plate 4142b, first slot 4142c, second slot 4142d;

[0053] Second transmission assembly 32, second chain 321;

[0054] Second traction device 42, second traction hook 424, second connecting part 4241, second locking part 4242, third plate 4242a, fourth plate 4242b, third slot 4242c, fourth slot 4242d

[0055] First positioning guide 51, second positioning guide 52, first guide rail unit 61, first square guide rail 611, second guide rail unit 62, second square guide rail 621;

[0056] First drive assembly 71, first motor 711, first transmission shaft 712, second drive assembly 72, second motor 721, second transmission shaft 722, first tensioning mechanism 81, first tensioning wheel 811, first adjusting member 812, and second tensioning mechanism 82.

[0057] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0058] 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 the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0059] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0060] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0061] It should be understood that the term "and / or" as used in this application specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0062] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0063] Please see Figures 1-3 , Figure 1 This is a schematic diagram of the structure of the exchange workbench device 100 provided in the embodiments of this application. Figure 2 This is a schematic diagram of the exchange workbench device 100 provided in an embodiment of this application in another state. Figure 3 for Figure 2 The diagram shows an enlarged view of point A of the exchange workbench device 100. The exchange workbench device 100 provided in this application includes a fixed support platform 10, a first workbench 21, a second workbench 22, a first transmission assembly 31, and a second transmission assembly 32. The first workbench 21 and the second workbench 22 are mounted on the fixed support platform 10 at a vertical Z-distance.

[0064] Please combine Figure 4 , Figure 4 This is a schematic diagram of the structure of the first transmission assembly 31 and the first traction device 41 provided in the embodiments of this application. The first transmission assembly 31 is disposed on the fixed support platform 10. The first transmission assembly 31 includes a first chain 311, and the first traction device 41 is connected to both sides of the first chain 311 along the first horizontal direction Y. The first traction device 41 is connected to the first worktable 21. The first chain 311 moves along the second horizontal direction X to drive the first worktable 21 to move. The second horizontal direction X is perpendicular to the first horizontal direction Y.

[0065] The second transmission assembly 32 is disposed on the fixed support platform 10. The second transmission assembly 32 includes a second chain 321. A second traction device 42 is connected to both sides of the second chain 321 along the first horizontal direction Y. The second traction device 42 is connected to the second worktable 22.

[0066] Understandably, the fixed support platform 10 serves to support and bear the loads of the first worktable 21, the second worktable 22, the first transmission assembly 31, and the second transmission assembly 32 of the exchange worktable device 100. The fixed support platform 10 may have two spaced-apart mounting surfaces on its vertical Z-direction for mounting the first worktable 21 and the second worktable 22.

[0067] The fixed support platform 10 is slidably connected to the first worktable 21 and the second worktable 22. For example, guide rails extending along the second horizontal direction X can be provided on the two mounting surfaces of the fixed support platform 10, and the fixed support platform 10 is slidably connected to the first worktable 21 and the second worktable 22 through the guide rails. Multiple support feet can be arranged at equal intervals at the bottom of the fixed support platform 10, and the support feet can ensure that the fixed support platform 10 remains stable during long-term operation.

[0068] It should be noted that the vertical direction Z can be understood as the height direction of the exchange workbench device 100, the first horizontal direction Y can be understood as the width direction of the exchange workbench device 100, and the second horizontal direction X can be understood as the length direction of the exchange workbench device 100.

[0069] The system comprises two first transmission components 31, which are symmetrically arranged on both sides of the fixed support platform 10 along the first horizontal direction Y. Each first transmission component 31 has a first traction device 41 connected to both sides of its first chain 311. The first traction device 41 is used to pull the first worktable 21 to move along the second horizontal direction X.

[0070] The first traction device 41 can be connected to the first workbench 21 by means of snap-fit ​​connection, bolt connection, welding or riveting, so as to ensure that when the first chain 311 rotates to drive the first traction device 41, the first traction device 41 can smoothly drive the first workbench 21 to move relative to the fixed support platform 10.

[0071] There are two second transmission components 32, which are symmetrically arranged on both sides of the fixed support platform 10 along the second horizontal direction X. It should be noted that the second transmission components 32 and the first transmission component 31 are also spaced apart on the fixed support platform 10 along the vertical direction Z. A second traction device 42 is connected to both sides of the second chain 321 of each second transmission component 32. The second traction device 42 is used to pull the second worktable 22 to move along the second horizontal direction X.

[0072] The second traction device 42 can be connected to the second workbench 22 by means of snap-fit ​​connection, bolt connection, welding or riveting, so as to ensure that when the second chain 321 rotates to drive the second traction device 42 to move, the second traction device 42 can smoothly drive the second workbench 22 to move relative to the fixed support platform 10.

[0073] The first chain 311 and the second chain 321 can circulate under the drive of a motor, a reducer and a transmission shaft.

[0074] Thus, traction devices are installed on the chains on both sides of the fixed support platform 10, and the traction devices are located on the left and right sides of each chain. When the worktable is subjected to heavy load exchange, the traction force of the traction device is consistent with the transmission direction of the chain, so that the double-sided traction on a single chain makes the chain more evenly stressed, thereby avoiding the breakage of the first chain 311 and the second chain 321, which would lead to the derailment of the first worktable 21 and the second worktable 22.

[0075] The presence of traction devices on both sides of each chain prevents the worktable from tilting due to uneven traction on one side, making the movement of the worktable smoother and improving the overall stability of the exchange worktable device 100.

[0076] The exchange table device 100 provided in this application achieves efficient exchange between the first worktable 21 and the second worktable 22 through the coordinated operation of two sets of transmission components and two sets of traction devices. The main working principle is as follows: a fixed support platform 10 supports all components; two first transmission components 31 symmetrically arranged along the first horizontal direction Y, and two second transmission components 32 symmetrically arranged along the second horizontal direction X, respectively drive the corresponding first chain 311 and second chain 321 to rotate along the second horizontal direction X. When the first chain 311 and second chain 321 circulate, they drive the respective traction devices on both sides to apply force synchronously. The first traction device 41 and the second traction device 42 ensure that the first worktable 21 and the second worktable 22 can move smoothly relative to the fixed support platform 10 along the second horizontal direction X.

[0077] It should be noted that, since the first worktable 21 and the second worktable 22 are arranged at intervals along the vertical direction Z on the fixed support platform 10, and the first worktable 21 and the second worktable 22 are respectively connected to their respective first transmission components 31 and second transmission components 32, as well as the first traction device 41 and the second traction device 42, the first worktable 21 and the second worktable 22 will not interfere with each other during movement along the second horizontal direction X.

[0078] Based on this, the exchange workbench device 100 provided in this application has three exchange modes: synchronous exchange between the two workbench platforms, and separate exchange between the first workbench 21 and the second workbench 22.

[0079] For example, the first workbench 21 and the second workbench 22 can move synchronously towards each other along the second horizontal direction X. This mode of synchronous exchange between the two workbench platforms is suitable for batch processing needs in continuous production and improves work efficiency.

[0080] In some embodiments, only the first worktable 21 may be controlled to move along the second horizontal direction X, or only the second worktable 22 may be controlled to move along the second horizontal direction X. When a malfunction occurs or maintenance is required, causing one worktable to stop working, the other worktable can still move to complete the loading and sorting, avoiding the downtime of the entire machine due to a problem with a single worktable, and enhancing the adaptability and practicality of the worktable exchange device 100 under complex working conditions.

[0081] In some embodiments, the exchange workbench device 100 may also include a third workbench and a fourth workbench, etc. Each workbench is provided with a transmission component and a traction device. The specific structure and working principle of the third workbench and the fourth workbench are similar to those of the first workbench 21, etc. The specific structure and working principle of the corresponding transmission component and traction device are also similar to those of the aforementioned transmission component and traction device. For details, please refer to the foregoing content, which will not be repeated here.

[0082] Please see Figures 4-6 , Figure 5 This is a schematic diagram of the structure of the first traction device 41 provided in the embodiments of this application. Figure 6 An exploded view of the first transmission component 31 and the first traction device 41 provided in the embodiments of this application.

[0083] Optionally, the first traction device 41 includes a first pin 411, a first traction block 412, and a second traction block 413. The first pin 411 is passed through a link of the first chain 311. One end of the first pin 411 is connected to the first traction block 412, and the other end is connected to the second traction block 413.

[0084] Specifically, the diameter of the first pin 411 is adapted to the pin hole of the link of the first chain 311, and the first traction block 412 and the second traction block 413 are symmetrically designed block structures that can be made of forged aluminum alloy or cast steel and have sufficient strength and rigidity.

[0085] The first traction block 412 and the second traction block 413 are each provided with a first mounting hole for the first pin 411 to pass through. Specifically, the first pin 411 has external threads machined at both ends, and the first mounting hole has an internal thread that matches the external thread of the first pin 411. The first traction block 412 and the second traction block 413 can be connected to the pin by means of threaded connection.

[0086] In some embodiments, the first pin 411 is provided with an annular groove for installing an elastic retaining ring to prevent the first pin 411 from moving relative to the first traction block 412 and the second traction block 413.

[0087] When the first chain 311 begins to rotate, the first pin 411 moves synchronously with the first chain link 3111. Since the first traction block 412 and the second traction block 413 are fixedly connected to both ends of the first pin 411, and both traction blocks are connected to the first worktable 21, the movement of the first chain 311 is converted into linear movement of the first worktable 21 along the second horizontal direction X by the first traction device 41. The symmetrical arrangement of the first traction block 412 and the second traction block 413 on both sides ensures that the traction force is evenly distributed on both sides of the first chain 311, avoiding breakage caused by unilateral force on the first chain 311.

[0088] The structure of the second traction device 42 is similar to that of the first traction device 41. Similarly, the second traction device 42 includes a second pin (not shown), a third traction block (not shown), and a fourth traction block (not shown). The second pin passes through a link of the second chain 321. One end of the second pin is connected to the third traction block, and the other end is connected to the fourth traction block.

[0089] Similarly, the diameter of the second pin is adapted to the pin hole of the second link of the second chain 321. The third and fourth traction blocks are symmetrically designed block structures, which can be made of forged aluminum alloy or cast steel and have sufficient strength and rigidity.

[0090] Both the third and fourth traction blocks are provided with second mounting holes for the second pin to pass through. Specifically, the two ends of the second pin are respectively machined with external threads, and the second mounting holes are machined with internal threads that match the external threads of the second pin. The third and fourth traction blocks can be connected to the pin by threaded connection.

[0091] In some embodiments, the second pin is provided with an annular groove for installing an elastic retaining ring to prevent the second pin from moving relative to the third and fourth traction blocks.

[0092] When the second chain 321 begins to rotate, the second pin moves synchronously with the second chain link. Since the third and fourth traction blocks are fixedly connected to both ends of the second pin, and both traction blocks are connected to the second worktable 22, the movement of the second chain 321 is converted by the second traction device 42 into linear movement of the second worktable 22 along the second horizontal direction X. The symmetrically arranged third and fourth traction blocks ensure that the traction force is evenly distributed on both sides of the second chain 321, preventing the second chain 321 from breaking due to unilateral force.

[0093] Please see Figure 3 and Figure 7 , Figure 7 This is a schematic diagram of the structure of the first traction hook 414 provided in an embodiment of this application. Optionally, the first traction device 41 includes a first traction hook 414 disposed on the first workbench 21. The first traction hook 414 includes a first connecting part 4141 and a first engaging part 4142. The first connecting part 4141 is used to connect with the first workbench 21, and the first engaging part 4142 is used to engage with the first traction block 412 and the second traction block 413.

[0094] Thus, through the double-sided engagement structure of the first engaging part 4142 with the first traction block 412 and the second traction block 413, the first chain 311 is subjected to balanced force and can be evenly transmitted to both sides of the first worktable 21, thereby improving the stability of the movement of the first worktable 21.

[0095] Specifically, the first traction hook 414 can be integrally molded, and it can be made of a high-strength alloy material to ensure sufficient strength and toughness. The first connecting part 4141 can be flat and fits tightly against the mounting surface of the first worktable 21. The surface of the first connecting part 4141 has multiple connecting holes. Bolts are passed through the connecting holes and the corresponding mounting holes on the first worktable 21 in sequence, and then the nuts are tightened to securely install the first connecting part 4141 onto the first worktable 21. The bolt connection method facilitates installation and disassembly, and allows for quick replacement when the first traction hook 414 is damaged or requires maintenance.

[0096] In addition, a rubber pad can be provided between the mating surfaces of the first connecting part 4141 and the first worktable 21 to increase friction and prevent the first traction hook 414 from undergoing relative displacement during operation.

[0097] The first engaging portion 4142 may include a first plate 4142a and a second plate 4142b disposed opposite to each other. The first plate 4142a has a first engaging groove 4142c, and the second plate 4142b has a second engaging groove 4142d. The openings of the first engaging groove 4142c and the second engaging groove 4142d face the first chain 311. The first engaging groove 4142c engages the first traction block 412, and the second engaging groove 4142d engages the second traction block 413. When the first traction block 412 and the second traction block 413 are respectively positioned in the first engaging groove 4142c and the second engaging groove 4142d, the gap between the first plate 4142a and the second plate 4142b allows the first chain 311 to pass through, preventing the first chain 311 from colliding or rubbing against the first traction hook 414 during transmission.

[0098] Please see Figure 3 and Figure 8 , Figure 8 This is a schematic diagram of the structure of the second traction hook 414 provided in the embodiment of this application. The second traction device 42 includes a second traction hook 424 disposed on the second workbench 22. The second traction hook 424 includes a second connecting part 4241 and a second locking part 4242. The second connecting part 4241 is used to connect with the second workbench 22, and the second locking part 4242 is used to engage with the third traction block and the fourth traction block.

[0099] Thus, through the double-sided engagement structure of the second locking part 4242 with the third and fourth traction blocks, the second chain 321 is subjected to balanced force and can be evenly transmitted to both sides of the second worktable 22, thereby improving the stability of the movement of the second worktable 22.

[0100] Similarly, the second traction hook 424 can be integrally molded, and it can be made of high-strength alloy material to ensure sufficient strength and toughness. The second connecting part 4241 can be flat and fits tightly against the mounting surface of the second worktable 22. The surface of the second connecting part 4241 has multiple connecting holes. Bolts are passed through the connecting holes and the corresponding mounting holes on the second worktable 22 in sequence, and then the nuts are tightened to securely install the second connecting part 4241 onto the second worktable 22. The bolt connection method facilitates installation and disassembly, and allows for quick replacement when the second traction hook 424 is damaged or requires maintenance.

[0101] In addition, a rubber pad can be provided between the mating surfaces of the second connecting part 4241 and the second worktable 22 to increase friction and prevent the second traction hook 424 from undergoing relative displacement during operation.

[0102] The second engaging portion 4242 may include a third plate 4242a and a fourth plate 4242b disposed opposite to each other. The third plate 4242a has a third slot 4242c, and the fourth plate 4242b has a fourth slot 4242d. The openings of the third slot 4242c and the fourth slot 4242d face the second chain 321. The third slot 4242c is used to engage the third traction block, and the fourth slot 4242d is used to engage the fourth traction block. When the third and fourth traction blocks are respectively positioned in the third slot 4242c and the fourth slot 4242d, the gap between the third plate 4242a and the fourth plate 4242b allows the second chain 321 to pass through, preventing the second chain 321 from colliding or rubbing against the second traction hook 424 during transmission.

[0103] It should be noted that the shapes of the first traction hook 414 and the second traction hook 424 can be the same or different. The specific selection can be made according to factors such as the installation position of the first workbench 21 and the second workbench 22, and no restrictions are imposed here.

[0104] Please see Figures 9-11 , Figure 9 This is a structural schematic diagram of the fixed support platform 10 provided in the embodiments of this application. Figure 10 for Figure 9 An enlarged schematic diagram of point B on the fixed support platform 10 shown. Figure 11 This is a schematic diagram of the structure of the first transmission component 31 provided in an embodiment of this application.

[0105] Optionally, the exchange workbench device 100 further includes a first positioning guide 51 and a second positioning guide 52, both of which are mounted on the fixed support platform 10.

[0106] The first chain 311 includes a plurality of first chain links 3111. Each first chain link 3111 includes a first outer chain plate 3112 and a first inner chain plate 3113 arranged in parallel. The first positioning guide 51 is accommodated in the gap between the first outer chain plate 3112 and the first inner chain plate 3113.

[0107] The second chain 321 includes multiple second chain links (not shown), each second chain link including a second outer chain plate and a second inner chain plate arranged in parallel, and the second positioning guide 52 is accommodated in the gap between the second outer chain plate and the second inner chain plate.

[0108] The first positioning guide 51 and the second positioning guide 52 support and hold the first chain 311 and the second chain 321, and limit the left and right sway of the chains, so that the first chain 311 and the second chain 321 can be precisely guided and positioned during transmission. In addition, the precise guiding and positioning provided by the positioning guides further improves the stability and reliability of the exchange process between the first worktable 21 and the second worktable 22, reduces the downtime frequency caused by chain failure, and improves the overall production efficiency.

[0109] Specifically, the first positioning guide 51 can be a long, cylindrical structure, and the first positioning guide 51 is made of a high-strength, low-friction alloy material. Its cross-section is rectangular, and its dimensions are precisely matched with the gap between the outer and inner chain plates of the first chain 31145.

[0110] The first positioning guide 51 can be fixed to the fixed support platform 10 by bolts. There can be two first positioning guides 51 on each first chain 311. The two first positioning guides 51 are located below the slack side and the tight side of the first chain 311, respectively, so as to guide and position the first chain 311 from the top and bottom. This can prevent the single first positioning guide 51 from wearing, deforming or even failing due to excessive pressure under high load conditions.

[0111] The structure of the second positioning guide 52 is basically the same as that of the first positioning guide 51, also being a long, cylindrical structure. It can also use the same material and processing technology as the first positioning guide 51. The second positioning guide 52 can also be fixed to the fixed support platform 10 by bolts. Similarly, the number of second positioning guides 52 on each second chain 321 can also be two, with the two second positioning guides 52 located below the slack side and tight side of the second chain 321 respectively, providing guidance and positioning for the second chain 321 from both the top and bottom.

[0112] Optionally, the first transmission assembly 31 further includes a first sprocket 312 and a second sprocket 313 spaced apart, with both ends of the first chain 311 sleeved on the first sprocket 312 and the second sprocket 313, and the length of the first positioning guide 51 being equal to the center distance between the first sprocket 312 and the second sprocket 313.

[0113] Because the length of the first positioning guide 51 covers the entire chain travel between the first sprocket 312 and the second sprocket 313, the first chain 311 is always constrained by the first positioning guide 51 during transmission. Whether the first chain 311 enters the sprocket engagement zone or is in the straight-line running section, it can maintain a stable trajectory, ensuring high precision and stability during the exchange process of the first worktable 21. Thus, the length of the first positioning guide 51 matches the center distance between the first sprocket 312 and the second sprocket 313, ensuring effective constraint on the entire travel of the first chain 311.

[0114] The second transmission assembly 32 also includes a third sprocket and a fourth sprocket (not shown) spaced apart. The two ends of the second chain 321 are fitted onto the third and fourth sprockets. The length of the second positioning guide 52 is equal to the center distance between the third and fourth sprockets. Similarly, the length of the second positioning guide 52 covers the entire chain travel between the third and fourth sprockets, ensuring that the second chain 321 is always constrained by the second positioning guide 52 during transmission. Whether the second chain 321 enters the sprocket engagement zone or is in a straight-line running section, it maintains a stable trajectory, ensuring high precision and stability during the exchange process of the second worktable 22. The second positioning guide 52 also effectively constrains the second chain 321 throughout its entire travel.

[0115] Optionally, please refer to Figure 12 , Figure 12 This is a structural schematic diagram of the fixed support platform 10 provided in an embodiment of this application from another perspective. The fixed support platform 10 includes a frame 11. Along the first horizontal direction Y, side beams 12 are provided on both sides of the frame 11. Along the vertical direction Z, first guide rail units 61 and second guide rail units 62 are provided at intervals on the side beams 12.

[0116] The first worktable 21 includes a first roller assembly (not shown), which is movably mounted on the first guide rail unit 61. The second worktable 22 includes a second roller assembly, which is movably mounted on the second guide rail unit 62.

[0117] Specifically, the frame 11 of the fixed support platform 10 can be welded from high-strength steel to form a rectangular frame structure. The main body of the frame 11 consists of multiple longitudinal beams and transverse beams, which are connected by welding. Along the first horizontal direction Y, side beams 12 are symmetrically welded on both sides of the frame 11. The side beams 12 are used to support and install the guide rail unit.

[0118] The first guide rail unit 61 is located on the upper part of the side beam 12. The first guide rail unit 61 can be composed of two parallel guide rails. The spacing and length of the two guide rails can be customized according to the size of the first worktable 21 to ensure that they can cooperate with the first roller assembly of the first worktable 21. The two guide rails can be fixedly installed on the two side beams 12 respectively by bolts.

[0119] The first roller assembly can be bolted to the bottom or side of the frame of the first worktable 21. The first roller assembly can include multiple rollers. Multiple rollers are provided on both sides of the first worktable 21 along the first horizontal direction Y. The rollers can cooperate with the guide rail of the first guide rail unit 61 so that the first worktable 21 can slide normally.

[0120] The second guide rail unit 62 is located at the lower part of the side beam 12. The structure of the second guide rail unit 62 is the same as that of the first guide rail unit 61. The spacing between the two linear guide rails of the second guide rail unit 62 is customized according to the size of the second worktable 22 to ensure precise matching with the second roller assembly of the second worktable 22.

[0121] The second roller assembly can be bolted to the bottom or side of the frame of the second worktable 22. The second roller assembly can include multiple rollers. Multiple rollers are provided on both sides of the second worktable 22 along the first horizontal direction Y. The rollers can cooperate with the guide rail of the second guide rail unit 62 so that the second worktable 22 can slide normally.

[0122] The rollers can be of various types, such as V-shaped rollers, cylindrical rollers, spherical rollers, or tapered rollers, and there are no restrictions on their type. The guide rails are set accordingly based on the type of rollers.

[0123] Optionally, the first guide rail unit 61 includes a first square guide rail 611 and a first flat guide rail, which are respectively disposed on the side beams 12 on both sides of the frame 11 along the first horizontal direction Y. The first roller assembly includes a first conical roller and a first flat roller, wherein the first conical roller is movably disposed on the first square guide rail 611 and the first flat roller is movably disposed on the first flat guide rail.

[0124] The second guide rail unit 62 includes a second square guide rail 621 and a second flat guide rail, which are respectively disposed on the side beams 12 on both sides along the first horizontal direction Y. The second roller assembly includes a second conical roller and a second roller, the second conical roller being movably disposed on the second square guide rail 621 and the second flat roller being movably disposed on the second flat guide rail.

[0125] Thus, the edges of the square guide rail, in conjunction with the tapered rollers, provide precise lateral positioning, limiting the swaying and offset of the first worktable 21 and the second worktable 22 in the width direction, and ensuring the straightness of the movement. The flat guide rail, in conjunction with the flat rollers, mainly provides stable support in the vertical direction, and also assists in guiding, ensuring that the first worktable 21 and the second worktable 22 move along the predetermined direction.

[0126] Along the first horizontal direction Y, the first square guide rail 611 and the first flat guide rail are symmetrically arranged on the side beams 12 on both sides of the frame 11. They are parallel to each other and the spacing is designed according to the structural dimensions of the first worktable 21 to ensure that the first square guide rail 611 and the first flat guide rail can accurately mate with the first roller assembly. Both the first square guide rail 611 and the first flat guide rail extend along the second horizontal direction X.

[0127] In this assembly, the first conical roller of the first roller assembly cooperates with the first square guide rail 611, and the conical surface of the first roller makes line contact with the side of the first square guide rail 611 to achieve precise guidance. The first flat roller cooperates with the first flat guide rail, and the bottom surface of the first flat roller makes surface contact with the upper surface of the first flat guide rail. It mainly bears the vertical load of the first worktable 21. The two work together to ensure that the first worktable 21 moves smoothly and accurately in the second horizontal direction X.

[0128] Similarly, along the first horizontal direction Y, the second square guide rail 621 and the second flat guide rail are symmetrically arranged on the side beams 12 on both sides of the frame 11. The two are parallel to each other and the spacing is designed according to the structural dimensions of the second worktable 22 to ensure that the second square guide rail 621 and the second flat guide rail can accurately cooperate with the second roller assembly.

[0129] The second conical roller in the second roller assembly mates with the second square guide rail 621. The conical surface of the second conical roller makes line contact with the side of the second square guide rail 621, achieving precise guidance. The second flat roller mates with the second flat guide rail. The bottom surface of the second flat roller makes surface contact with the upper surface of the second flat guide rail. It mainly bears the vertical load of the second worktable 22. The two work together to ensure that the second worktable 22 moves smoothly and accurately in the second horizontal direction X.

[0130] Optionally, please refer to Figure 12 The exchange workbench device 100 also includes a first drive assembly 71 and a second drive assembly 72, both of which are mounted on the fixed support platform 10.

[0131] The first drive assembly 71 includes a first motor 711 and a first drive shaft 712 connected to the first motor 711. The first drive shaft 712 is connected to a first chain 311. Under the drive of the first motor 711, the first drive shaft 712 drives the first chain 311 to rotate so that the first worktable 21 moves along the second horizontal direction X.

[0132] The second drive assembly 72 includes a second motor 721 and a second drive shaft 722 connected to the second motor 721. The second drive shaft 722 is connected to the second chain 321. Under the drive of the second motor 721, the second drive shaft 722 drives the second chain 321 to rotate so that the second worktable 22 moves along the second horizontal direction X.

[0133] Thus, the dual-drive component configuration enables the exchange workbench device 100 to support multiple working modes, allowing the two workbench to work together to complete loading and unloading tasks, or enabling a single workbench to work independently.

[0134] In the joint loading / unloading mode, the two motors can simultaneously drive the worktables to move towards each other, enabling rapid exchange. For example, while the first worktable 21 moves from the processing area to the loading / unloading area, the second worktable 22 moves from the loading / unloading area to the processing area, and both reach their preset positions synchronously. In the single-worktable operation mode, when only the first worktable 21 needs to be used, the second motor 721 remains stationary, and the first motor 711 drives the first worktable 21 to run; and vice versa. Different operating modes can be selected according to the actual working conditions to meet different processing task requirements.

[0135] The first transmission assembly 31 may further include a first reducer, one end of which is connected to the output end of the first motor 711, and the other end is connected to the first transmission shaft 712. The first motor 711 drives the first transmission shafts 712 on both sides to rotate through the first reducer. The first sprocket 312 can also rotate with the first transmission shaft 712, thereby driving the first chain 311 to rotate. This causes the first traction blocks 412 and the second traction blocks 413 on both sides of the first chain 311 to move. The movement of the first traction hook 414, which engages with the first traction blocks 412 and the second traction blocks 413, then drives the first worktable 21 to move along the second horizontal direction X. This avoids problems such as the first chain 311 breaking and the first traction hook 414 disengaging due to uneven force on one side.

[0136] Similarly, the second transmission assembly 32 may also include a second reducer, one end of which is connected to the output end of the second motor 721, and the other end is connected to the second transmission shaft 722. The second motor 721 drives the second transmission shafts 722 on both sides to rotate through the second reducer. The third sprocket can also rotate with the second transmission shaft 722, thereby driving the second chain 321 to rotate. This causes the third traction block and the fourth traction block on both sides of the second chain 321 to move. The movement of the second traction hook 424, which engages with the second traction block 413, then drives the second worktable 22 to move along the second horizontal direction X. This avoids problems such as the second chain 321 breaking and the second traction hook 424 disengaging due to uneven force on one side.

[0137] Please see Figure 12 and Figure 13 , Figure 13 This is a schematic diagram of the structure of the first tensioning mechanism 81 and the first chain 311 provided in the embodiments of this application. Optionally, the exchange workbench device 100 further includes a first tensioning mechanism 81 and a second tensioning mechanism 82, both of which are mounted on the fixed support platform 10.

[0138] The first tensioning mechanism 81 is connected to the first chain 311 and is used to adjust the tension of the first chain 311. The second tensioning mechanism 82 is connected to the second chain 321 and is used to adjust the tension of the second chain 321.

[0139] The first tensioning mechanism 81 and the second tensioning mechanism 82 are arranged on the fixed support platform 10, and respectively adjust the tension of the first chain 311 and the second chain 321, so that the first chain 311 and the second chain 321 always maintain appropriate tension, and avoid the first chain 311 and the second chain 321 from loosening, shaking or skipping teeth during transmission, thereby ensuring that the first worktable 21 and the second worktable 22 can move accurately and smoothly.

[0140] Specifically, the first tensioning mechanism 81 may include a first tensioning wheel 811 and a first adjusting member 812, wherein the first tensioning wheel 811 is embedded in the first chain 311, the first tensioning wheel 811 is movably connected to the first adjusting member 312, and the first adjusting member 812 drives the first tensioning wheel 811 to move thereby adjusting the tension between it and the first chain 311.

[0141] The structure of the second tensioning mechanism 82 is similar to that of the first tensioning mechanism 81. Similarly, the second tensioning mechanism 82 may include a second tensioning wheel and a second adjusting member (not shown), wherein the second tensioning wheel is embedded in the second chain 321, the second tensioning wheel is movably connected to the first adjusting member, and the second adjusting member drives the second tensioning wheel to move thereby adjusting the tension between it and the second chain 321.

[0142] Please see Figure 14 , Figure 14 This is a schematic diagram of the structure of a laser cutting machine 1000 provided in an embodiment of this application. This application also proposes a laser cutting machine 1000, which includes a cutting bed 200 and an exchange worktable device 100 as described in any of the above embodiments. The fixed support platform 10 of the exchange worktable device 100 is disposed opposite to the cutting bed 200, and the exchange worktable device 100 is used to feed materials onto the cutting bed 200.

[0143] The laser cutting machine 1000 of this application has at least the beneficial effects of the aforementioned exchange worktable device 100 since it adopts the above-mentioned exchange worktable device 100, which will not be repeated here.

[0144] The cutting bed 200 is provided with a cutting area. When the material on the first worktable 21 and the second worktable 22 moves to the cutting area, the cutting bed 200 can cut the material.

[0145] It is understandable that the cutting bed 200 is also equipped with a first guide rail unit and a second guide rail unit similar to those on the fixed support table 10. That is, the guide rail unit structures on the cutting bed 200 and the fixed support table 10 are the same, and the first guide rail unit and the second guide rail unit are installed at the same height on the cutting bed 200 and the fixed support table 10. Thus, when the first worktable 21 or the second worktable 22 moves along the second horizontal direction X from the fixed support table 10 toward the direction closer to the cutting bed 200, it can move directly along the guide rails of the first guide rail unit or the second guide rail unit of the cutting bed 200, and can move smoothly to the cutting area of ​​the cutting bed 200 for cutting. Of course, after cutting, the first worktable 21 or the second worktable 22 can also move smoothly from the cutting bed 200 back to the fixed support table 10.

[0146] It should be noted that in the laser cutting machine 1000 of this application, the first transmission component 31, the second transmission component 32, the first drive component 71, the second drive component 72, the first tensioning mechanism 81 and the second tensioning mechanism 82 are all mounted on the fixed support table 10. Compared with the related technology, which sets the above components on the cutting bed, the laser cutting machine 1000 provided in this application sets them on the fixed support table 10 to facilitate subsequent maintenance and repair.

[0147] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. An exchange workbench device, characterized in that, include: Fixed support platform; The first workbench and the second workbench are installed at intervals along the vertical direction on the fixed support platform; A first transmission assembly is disposed on the fixed support platform. The first transmission assembly includes a first chain, and first traction devices are connected to both sides of the first chain along a first horizontal direction. The first traction devices are connected to the first worktable. The first chain moves along a second horizontal direction to drive the first worktable to move. The second horizontal direction is perpendicular to the first horizontal direction. A second transmission assembly is disposed on the fixed support platform. The second transmission assembly includes a second chain, and second traction devices are connected to both sides of the second chain along a first horizontal direction. The second traction devices are connected to the second worktable, and the second chain moves along a second horizontal direction to drive the second worktable to move.

2. The exchange workbench device according to claim 1, characterized in that, The first traction device includes a first pin, a first traction block, and a second traction block. The first pin passes through a link of the first chain, one end of the first pin is connected to the first traction block, and the other end is connected to the second traction block. The second traction device includes a second pin, a third traction block, and a fourth traction block. The second pin passes through a link of the second chain, with one end connected to the third traction block and the other end connected to the fourth traction block.

3. The exchange workbench device according to claim 2, characterized in that, The first traction device includes a first traction hook disposed on the first workbench. The first traction hook includes a first connecting part and a first snap-fit ​​part. The first connecting part is used to connect to the first workbench, and the first snap-fit ​​part is used to engage with the first traction block and the second traction block. The second traction device includes a second traction hook disposed on the second workbench. The second traction hook includes a second connecting part and a second locking part. The second connecting part is used to connect with the second workbench, and the second locking part is used to engage with the third traction block and the fourth traction block.

4. The exchange workbench apparatus according to any one of claims 1-3, characterized in that, The exchange workbench device further includes a first positioning guide and a second positioning guide, both of which are mounted on the fixed support platform; The first chain includes a plurality of first links, each of which includes a first outer link plate and a first inner link plate arranged in parallel, and the first positioning guide is accommodated in the gap between the first outer link plate and the first inner link plate; The second chain includes a plurality of second chain links, each second chain link including a second outer chain plate and a second inner chain plate arranged in parallel, and the second positioning guide is accommodated in the gap between the second outer chain plate and the second inner chain plate.

5. The exchange workbench device according to claim 4, characterized in that, The first transmission assembly further includes a first sprocket and a second sprocket spaced apart, with both ends of the first chain sleeved on the first sprocket and the second sprocket, and the length of the first positioning guide is equal to the center distance between the first sprocket and the second sprocket. The second transmission assembly further includes a third sprocket and a fourth sprocket spaced apart, with the two ends of the second chain sleeved on the third sprocket and the fourth sprocket, and the length of the second positioning guide is equal to the center distance between the third sprocket and the fourth sprocket.

6. The exchange workbench apparatus according to any one of claims 1-3, characterized in that, The fixed support platform includes a frame, with side beams on both sides of the frame along the first horizontal direction, and first guide rail units and second guide rail units spaced apart on the side beams along the vertical direction. The first worktable includes a first roller assembly, which is movably mounted on the first guide rail unit; the second worktable includes a second roller assembly, which is movably mounted on the second guide rail unit.

7. The exchange workbench device according to claim 6, characterized in that, The first guide rail unit includes a first square guide rail and a first flat guide rail. Along the first horizontal direction, the first square guide rail and the first flat guide rail are respectively disposed on the side beams on both sides of the frame. The first roller assembly includes a first conical roller and a first flat roller, wherein the first conical roller is movably disposed on the first square guide rail, and the first flat roller is movably disposed on the first flat guide rail; The second guide rail unit includes a second square guide rail and a second flat guide rail. Along the first horizontal direction, the second square guide rail and the second flat guide rail are respectively disposed on the side beams on both sides. The second roller assembly includes a second conical roller and a second flat roller, the second conical roller being movably mounted on the second square guide rail, and the second flat roller being movably mounted on the second flat guide rail.

8. The exchange workbench apparatus according to any one of claims 1-3, characterized in that, The exchange workbench device further includes a first drive assembly and a second drive assembly, both of which are mounted on the fixed support platform. The first drive assembly includes a first motor and a first drive shaft connected to the first motor. The first drive shaft is connected to the first chain. Under the drive of the first motor, the first drive shaft drives the first chain to rotate so that the first worktable moves along the second horizontal direction. The second drive assembly includes a second motor and a second drive shaft connected to the second motor. The second drive shaft is connected to the second chain. Under the drive of the second motor, the second drive shaft drives the second chain to rotate so that the second worktable moves along the second horizontal direction.

9. The exchange workbench apparatus according to any one of claims 1-3, characterized in that, The exchange workbench device also includes a first tensioning mechanism and a second chain tensioning mechanism, both of which are mounted on the fixed support platform; The first tensioning mechanism is connected to the first chain, and the first tensioning mechanism is used to adjust the tension of the first chain; The second chain tensioning mechanism is connected to the second chain and is used to adjust the tension of the second chain.

10. A laser cutting machine, characterized in that, include: Cutting the bed; The exchange worktable device according to any one of claims 1-9, wherein the fixed support platform of the exchange worktable device is disposed opposite to the cutting bed, and the exchange worktable device is used to load the cutting bed.

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