A retractable laser plate cutting machine

Abstract

The present application relates to the technical field of laser cutting, and discloses a telescopic laser cutting plate machine, which comprises a chassis, a cross beam, a first driving mechanism, an X-axis sliding seat, a second driving mechanism, a Z-axis sliding seat, a third driving mechanism, a platform driving mechanism and a workbench; the platform driving mechanism is in transmission connection with the workbench through a chain traction mechanism; the chain traction mechanism comprises a mounting seat, two pressing strips, a tension seat, a driven sprocket, a driving sprocket connected with the driven sprocket through a chain, and a tension screw in screw connection with the mounting seat; the tail of the tension screw is used for abutting against the side wall of the tension seat, and the head of the tension screw faces the driven sprocket; the driving sprocket is connected with the platform driving mechanism through a transmission shaft; and the chain is fixedly connected with the side wall of the workbench through a chain buckle. The chain traction mechanism is arranged on the inner side wall of the chassis, so that the space occupation of the equipment in the X-axis direction is reduced, and the equipment does not need to be disassembled from the peripheral metal plate before loading.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser cutting, in particular to a telescopic laser cutting plate machine. BACKGROUND

[0002] In the field of laser cutting technology, laser cutting plate machines are important equipment widely used in plate processing. With the increasing requirements of industrial production on processing precision, efficiency and equipment convenience, the structural design and performance optimization of laser cutting plate machines have become the focus of the industry.

[0003] Traditional telescopic laser cutting plate machines are usually composed of multiple key components, including a chassis, a platform transmission mechanism, a workbench, a crossbeam, a driving mechanism, and a laser cutting assembly, etc. These components work together to achieve accurate cutting of plates. Among them, the transmission mechanism is used to drive the workbench to move forward to achieve plate feeding or unloading, and to move backward to achieve plate cutting (reciprocal movement in the Y-axis direction). The transmission mechanism generally adopts a chain transmission mode. However, since the chain transmission mechanism of the transmission mechanism is arranged in the square tube in the X-axis direction of the chassis, the length of the X-axis direction of the chassis is increased. The laser cutting plate machine also needs to install an outer surrounding sheet metal, making the width of the entire device in the X-axis direction larger. The large X-axis length occupies too much space on the transport vehicle, and often exceeds the loading width limit of the vehicle, so the outer surrounding sheet metal needs to be disassembled before loading. This process not only consumes a lot of manpower and time, but also frequently disassembling and reassembling can easily damage the sheet metal, affecting its protective performance and service life, and may also have a potential impact on the precision components inside the device, reducing the overall reliability of the device. In addition, after the device arrives at the destination, it also needs to be installed and debugged again, further increasing the cycle and cost of putting the device into use.

[0004] It can be seen that the prior art needs to be improved and improved. SUMMARY

[0005] In view of the above shortcomings of the prior art, the purpose of the present application is to provide a telescopic laser cutting plate machine, which shortens the length of the X-axis of the cutting plate machine and does not need to disassemble the outer surrounding sheet metal for loading.

[0006] In order to achieve the above purpose, the present application adopts the following technical solutions:

[0007] The utility model provides a retractable laser cutting plate machine, which comprises a chassis, a beam slidably arranged on the chassis, a first driving mechanism for driving the beam to move along the Y-axis direction, an X-axis slide arranged on the beam, a second driving mechanism for driving the X-axis slide to move along the X-axis direction, a Z-axis slide arranged on the X-axis slide, a third driving mechanism for driving the Z-axis slide to move along the Z-axis direction, a laser cutting assembly arranged on the Z-axis slide, a platform driving mechanism arranged on the chassis, and a workbench; the platform driving mechanism drives the workbench to move along the Y-axis direction; the platform driving mechanism is in transmission connection with the workbench through a chain traction mechanism located on both sides of the workbench in the X-axis direction; the chain traction mechanism comprises a mounting seat fixedly connected with the chassis, two pressing strips fixedly connected with the mounting seat and arranged in an upper and lower manner, a tensioning seat slidably arranged between the two pressing strips, a driven sprocket in rotation connection with the tensioning seat, a driving sprocket connected with the driven sprocket through a chain, and a tensioning screw in screw connection with the mounting seat; the tail of the tensioning screw is used for abutting against the side wall of the tensioning seat, and the head of the tensioning screw faces the driven sprocket; the driving sprocket is connected with the platform driving mechanism through a transmission shaft; and the chain is fixedly connected with the side wall of the workbench through a chain buckle.

[0008] The retractable laser cutting plate machine, wherein a waist-shaped hole is formed in the mounting seat, and the tensioning seat is movably arranged in the waist-shaped hole; a tensioning nut is further screwed on the rod body of the tensioning screw, and the side wall of the tensioning nut is used for abutting against the side wall of the mounting seat.

[0009] The retractable laser cutting plate machine, wherein the inner side wall of the chassis is provided with embedding entrances consistent in number with the mounting seats, and the mounting seats are fixedly arranged in the corresponding embedding entrances.

[0010] The retractable laser cutting plate machine, wherein the outer side wall of the chassis is provided with maintenance openings consistent in number with the mounting seats.

[0011] The retractable laser cutting plate machine, wherein an auxiliary support is further arranged on the side wall of the beam, the auxiliary support comprises a vertical rod arranged in a vertical extension manner and a horizontal rod fixedly connected with the upper end of the vertical rod and arranged in a horizontal extension manner; the lower end of the vertical rod is fixedly connected with the side wall of the beam, the horizontal rod is located above the beam, and the extension direction of the horizontal rod is consistent with the extension direction of the beam; and the free end of the horizontal rod is fixedly connected with the end of the X-axis drag chain.

[0012] The retractable laser cutting plate machine, wherein the auxiliary support further comprises a plurality of support rods arranged at equal intervals, the lower end of each of the plurality of support rods is fixedly connected with the rear side wall of the beam, and the upper end of the support rod is fixedly connected with the lower surface of the horizontal rod.

[0013] The telescopic laser plate cutting machine, wherein the workbench comprises a workbench body, a first moving frame fixed to the lower surface of the workbench body, a second moving frame arranged below the first moving frame, a first guide rail assembly arranged in the first moving frame, a second guide rail assembly arranged in the second moving frame, an upper moving block arranged on the side wall of the first moving frame, and a first lower moving block and a second lower moving block arranged on the side wall of the second moving frame; the first lower moving block and the second lower moving block are arranged in the Y-axis direction, and the first lower moving block is located in front of the second lower moving block; the upper moving block is located between the first lower moving block and the second lower moving block, and the front side wall of the upper moving block is used for abutting against the rear side wall of the first lower moving block, and the rear side wall of the upper moving block is used for abutting against the front side wall of the second lower moving block; the chain buckle is fixed to the side wall of the first moving frame; the first moving frame and the second moving frame are slidably connected through the second guide rail assembly; and the first moving frame and the workbench body are slidably connected through the first guide rail assembly.

[0014] The telescopic laser plate cutting machine further comprises a limiting mechanism for limiting the workbench, the limiting mechanism comprises a positioning hook arranged on the workbench, a fixed seat arranged on the base frame, a driving piece arranged on the fixed seat, a follower seat fixed to the output end of the driving piece, and a positioning piece arranged on the follower seat; when the follower seat is driven to rise, the positioning piece is driven to move away from the positioning hook; and when the follower seat is driven to descend, the positioning piece is driven to move towards the positioning hook.

[0015] The telescopic laser plate cutting machine, wherein the upper surface of the fixed seat is provided with a guide plate, the follower seat is provided with a guide groove extending in the height direction thereof, and the guide plate is located in the guide groove; and the height of the guide plate is less than the height of the guide groove.

[0016] The telescopic laser plate cutting machine, wherein the side wall of the guide plate is provided with a second roller, the second roller is rotatable relative to the guide plate, and the second roller is used for rolling contact with the side wall of the follower seat.

[0017] Beneficial effects:

[0018] The telescopic laser plate cutting machine sets the chain traction mechanism on the inner side wall of the base frame, reasonably utilizes the space of the base frame, helps the compactness of the structure of the laser plate cutting machine, reduces the space occupation of the equipment in the X-axis direction, and makes it unnecessary to disassemble the peripheral sheet metal before loading the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Structure diagram of telescopic laser cutting plate machine Figure 1 .

[0020] Figure 2 Structure diagram of telescopic laser cutting plate machine Figure 2 .

[0021] Figure 3 Structure diagram of workbench and chain traction mechanism

[0022] Figure 4 Structure diagram of chain traction mechanism Figure 1 .

[0023] Figure 2 Structure diagram of chain traction mechanism Figure 6 .

[0024] Figure 1 Structure diagram of limiting mechanism Figure 7 .

[0025] Figure 2 Structure diagram of limiting mechanism Figure 1 .

[0026] Main component symbol explanation:

[0027] 10-chassis, 101-embedded entrance, 102-inspection hole, 20-cross beam, 30-first driving mechanism, 40-X-axis slide, 50-second driving mechanism, 60-Z-axis slide, 70-third driving mechanism, 80-platform driving mechanism, 81-transmission shaft, 90-laser cutting assembly;

[0028] 1-chain traction mechanism, 11-mounting seat, 111-mounting base, 1111-waist hole, 112-tension adjusting block, 12-pressing strip, 13-tightening seat, 131-tightening bottom plate, 132-middle shaft, 1321-vertical plane, 14-driven sprocket, 15-driving sprocket, 16-chain, 17-tightness screw, 18-tightness nut, 19-chain buckle;

[0029] 2-assistant support, 21-vertical rod, 22-cross rod, 23-supporting rod;

[0030] 3-workbench, 31-one section moving frame, 32-two section moving frame, 33-one section guide rail assembly, 34-two section guide rail assembly, 35-upper moving block, 36-first lower moving block, 37-second lower moving block;

[0031] 4-limiting mechanism, 41-positioning hook, 411-mounting part, 412-connection part, 413-inclined plate, 42-fixing seat, 43-driving piece, 44-follower seat, 441-cross plate, 442-vertical plate, 4421-mounting matching groove, 4422-guiding groove, 4423-gap, 45-positioning piece, 46-guiding plate, 47-second roller. DETAILED DESCRIPTION

[0032] The present application provides a telescopic laser cutting plate machine. In order to make the purpose, technical scheme and effect of the present application more clear and explicit, the present application is further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the protection scope of the present application.

[0033] Please refer to Figure 2 and Figures 3-5 The present application provides a telescopic laser cutting plate machine, which comprises a chassis 10, a cross beam 20 slidingly arranged on the chassis 10, a first driving mechanism 30 for driving the cross beam 20 to move along the Y-axis direction, an X-axis sliding seat 40 slidingly arranged on the cross beam 20, a second driving mechanism 50 for driving the X-axis sliding seat 40 to move along the X-axis direction, a Z-axis sliding seat 60 slidingly arranged on the X-axis sliding seat 40, a third driving mechanism 70 for driving the Z-axis sliding seat 60 to move along the Z-axis direction, a laser cutting assembly 90 arranged on the Z-axis sliding seat 60, a platform driving mechanism 80 arranged on the chassis 10, and a workbench 3; the platform driving mechanism 80 is used to drive the workbench 3 to move along the Y-axis direction; the platform driving mechanism 80 is in transmission connection with the workbench 3 through a chain traction mechanism 1 located on both sides of the workbench 3 in the X-axis direction, please refer to Figure 4 , the chain traction mechanism 1 comprises a mounting seat 11 fixedly connected with the chassis 10, two pressing strips 12 fixedly connected with the mounting seat 11 and arranged above and below, a tensioning seat 13 slidingly arranged between the two pressing strips 12, a driven sprocket 14 rotationally connected with the tensioning seat 13, a driving sprocket 15 connected with the driven sprocket 14 through a chain 16, and a tensioning screw 17 in screw connection with the mounting seat 11; the tail of the tensioning screw 17 is used to abut against the side wall of the tensioning seat 13, and the head of the tensioning screw 17 faces the driven sprocket 14; the driving sprocket 15 is connected with the platform driving mechanism 80 through a transmission shaft 81; the chain 16 is fixedly connected with the side wall of the workbench 3 through a chain buckle 19.

[0034] In practical applications, the platform driving mechanism 80 operates to provide a power source for the operation of the chain traction mechanism 1 through the transmission shaft 81, that is, the transmission shaft 81 drives the driving sprocket 15 to rotate, the driving sprocket 15 drives the chain 16 and the driven sprocket 14 to rotate, and since the workbench 3 is fixedly connected with the chain buckle 19, the workbench 3 can move along the width direction (Y-axis direction / forward and backward direction) of the chassis 10 to meet the needs of feeding and discharging and laser cutting the plate placed on the workbench 3. Thus, the telescopic laser cutting plate machine can be surrounded by the outer surrounding metal sheet, and when feeding or discharging is needed, the workbench 3 is moved out of the outer surrounding metal sheet to realize safe operation.

[0035] The chain traction mechanism 1 can also adjust the tension of the chain 16. By forward / reverse twisting the tension screw 17, the tensioning seat 13 slides between the pressing strips 12 under the tensioning action of the tail of the tension screw 17, the position of the tensioning seat 13 relative to the mounting seat 11 in the Y-axis direction / forward and backward direction can be changed, so that the distance between the driven sprocket 14 and the driving sprocket 15 can be changed, thereby realizing the tension of the chain 16 wound between the driven sprocket 14 and the driving sprocket 15. That is, during the use of the equipment, when it is found that the tension of the chain 16 changes due to wear or other reasons, the operator can simply rotate the tension screw 17 to adjust, without the need for complex tools or a large amount of disassembly work, thereby reducing the maintenance difficulty and cost of the equipment.

[0036] In addition, the chain traction mechanism 1 is arranged on the inner side wall of the chassis 10, which reasonably utilizes the space of the chassis 10, helps the compactness of the structure of the laser cutting plate machine, and reduces the space occupation of the equipment in the X-axis direction compared with the prior art, so that the equipment does not need to be disassembled before being loaded on the vehicle.

[0037] Specifically, the first driving mechanism 30 and the second driving mechanism 50 can adopt a driving mode of a motor, a gear and a rack, and the third driving mechanism 70 can adopt a driving mode of a gas cylinder. The above driving modes are prior art and will not be described in detail.

[0038] Specifically, the platform driving mechanism 80 can adopt a driving mode of a motor, a speed reducer and a shaft coupling. The above driving mode is prior art and will not be described in detail.

[0039] Please refer to Figure 4In some embodiments, the mounting base 11 comprises a mounting base 111 fixed to the lower surface of the chassis 10, and a tension adjusting block 112 arranged on the side wall of the mounting base 111; the mounting base 111 is provided with a waist-shaped hole 1111, the extension direction of the waist-shaped hole 1111 is consistent with the extension direction of the chain 16; the tensioning seat 13 is movably arranged in the waist-shaped hole 1111; the tension adjusting block 112 is threadedly connected with the tension screw 17. Specifically, the mounting base 111 is fixed to the upper surface of the chassis 10 and is in an "L" shape, and the tension adjusting block 112 is located on the outer side of the mounting base 111, so as to facilitate the staff to adjust the tension screw 17 on the tension adjusting block 112 from the outside. The waist-shaped hole 1111 can provide a clearance for the movement of the tensioning seat 13.

[0040] Please refer to Figure 4 In some embodiments, the rod body of the tension screw 17 is further threadedly connected with a tension nut 18, and the side wall of the tension nut 18 is used to abut against the side wall of the tension adjusting block 112. After adjusting the position of the tension screw 17, the tension nut 18 is used for reinforcement, so as to further limit the movement of the tensioning seat 13 in the front and back directions, and ensure that the chain traction mechanism 1 will not be displaced during the operation of the equipment.

[0041] Please refer to Figure 4 In some embodiments, the tensioning seat 13 comprises a tensioning bottom plate 131, and a middle shaft 132 fixed to the tensioning bottom plate 131; the middle shaft 132 penetrates the middle part of the tensioning bottom plate 131, and the inner side end of the middle shaft 132 is rotationally connected with the driven sprocket 14; the outer side end of the middle shaft 132 penetrates the waist-shaped hole 1111; and the side wall of the middle shaft 132 abuts against the tail part of the tension screw 17. The middle part of the tensioning bottom plate 131 is provided with a through hole for the middle shaft 132 to penetrate, and the two are fixed by welding process. The outer side end of the middle shaft 132 can reciprocally move in the waist-shaped hole 1111.

[0042] Please refer to Figure 5 In some embodiments, the outer side end of the middle shaft 132 is provided with a vertical plane 1321, which is used to contact the tail part of the tension screw 17. The outer circumferential surface of the shaft is generally an arc surface, and the vertical plane 1321 can increase the contact area between the tail part of the tension screw 17 and the middle shaft 132.

[0043] Please refer to Figure 1In some embodiments, the cross section of the tensioning bottom plate 131 is isosceles trapezoidal, and the side walls of the two pressing strips 12 facing each other are both inclined surfaces, and the two inclined surfaces respectively abut against the upper surface or the lower surface of the tensioning bottom plate 131. Through the shape limitation of the tensioning bottom plate 131 and the pressing strip 12, the up-down direction of the tensioning bottom plate 131 is limited, and the design is ingenious.

[0044] Please refer to Figure 2 and Figure 1 In some embodiments, the inner side wall of the bottom frame 10 is provided with embedded entrances 101 consistent with the number of the mounting seats 11, and the mounting seat 11 is fixedly arranged in the corresponding embedded entrance 101. The embedded entrance 101 is arranged to provide mounting space for the mounting seat 11, and the length of the bottom frame 10 in the X-axis direction can be further shortened.

[0045] Please refer to Figure 2 and Figure 1 In some embodiments, the outer side wall of the bottom frame 10 is provided with maintenance openings 102 consistent with the number of the mounting seats 11. Since the mounting seat 11 is embedded in the square tube in the embodiment, the maintenance opening 102 is arranged on the other side of the square tube, so that the staff can adjust the tightness of the chain 16 when the laser plate cutting machine has an outer surrounding metal plate.

[0046] Please refer to Figure 2 and Figure 1In some embodiments, an auxiliary support 2 is further provided on the side wall of the crossbeam 20. The auxiliary support 2 includes a vertically extending vertical rod 21 and a horizontally extending horizontal rod 22 fixed to the upper end of the vertical rod 21. The lower end of the vertical rod 21 is fixed to the side wall of the crossbeam 20, and the horizontal rod 22 is located above the crossbeam 20, with the extension direction of the horizontal rod 22 consistent with the extension direction of the crossbeam 20. The free end of the horizontal rod 22 is used to fix to the end of the X-axis cable chain. The frame is composed of the vertical rod 21 and the horizontal rod 22. The vertical rod 21 extends vertically, providing vertical support for the entire auxiliary support 2, and its lower end is firmly connected to the side wall of the crossbeam 20. The horizontal bar 22 is fixed to the upper end of the vertical bar 21 and extends laterally, positioned above the crossbeam 20. This design cleverly utilizes the space above the crossbeam 20 to house the X-axis cable chain, overcoming the problem of increased Y-axis width caused by traditional cable chain placement on the outside, thus further reducing the overall size of the laser cutting machine. Furthermore, the extension direction of the horizontal bar 22 is consistent with the crossbeam 20, allowing the X-axis cable chain to be rationally arranged along the direction of the crossbeam 20 after installation. The free end of the horizontal bar 22 is the key part for fixing to the end of the X-axis cable chain. Through this fixing method, the X-axis cable chain is stably positioned above the crossbeam 20, avoiding the X-axis cable chain extending outwards and occupying additional width space. Moreover, this fixing method ensures a more stable movement trajectory of the X-axis cable chain when following the X-axis, reducing interference to the cutting operation that may be caused by X-axis cable chain swaying or deviation.

[0047] Please see Figure 2 and Figure 3 In some embodiments, the auxiliary support 2 further includes a plurality of support rods 23 arranged at equal intervals. The lower ends of the support rods 23 are used to be fixed to the rear side wall of the crossbeam 20, and the upper ends of the support rods 23 are used to be fixed to the lower surface of the crossbar 22. The support rods 23 added to the auxiliary support 2 for installing the X-axis cable chain have their lower ends designed to be fixed to the outer side wall of the crossbeam 20, and their upper ends designed to be fixed to the lower surface of the crossbar 22. This design further improves the structure of the auxiliary support 2 and enhances the stability of the entire support from a mechanical perspective. Moreover, during the operation of the laser cutting machine, the X-axis cable chain generates forces in various directions, including its own weight, inertial forces during movement, and additional forces that may be generated by external interference. The addition of the support rod 23, together with the vertical rod 21, provides more stable support for the horizontal rod 22. It can share some of the forces borne by the vertical rod 21, especially when dealing with vertical pressure and horizontal shear force. Through multi-point support, the horizontal rod 22 is less likely to deform or shift under complex stress conditions, thereby ensuring the stability of the X-axis cable chain installation position.

[0048] Please see Figure 5 and Figure 1In some embodiments, the workbench 3 comprises a workbench body, a first moving frame 31 fixed to the lower surface of the workbench body, a second moving frame 32 arranged below the first moving frame 31, a first guide rail assembly 33 arranged inside the first moving frame 31, a second guide rail assembly 34 arranged inside the second moving frame 32, an upper moving block 35 arranged on the side wall of the first moving frame 31, a first lower moving block 36 and a second lower moving block 37 arranged on the side wall of the second moving frame 32, wherein the first lower moving block 36 and the second lower moving block 37 extend along the Y-axis direction, the first lower moving block 36 is located in front of the second lower moving block 37, the upper moving block 35 is located between the first lower moving block 36 and the second lower moving block 37, the front side wall of the upper moving block 35 is used to abut against the rear side wall of the first lower moving block 36, and the rear side wall of the upper moving block 35 is used to abut against the front side wall of the second lower moving block 37; the chain buckle 19 is fixed to the side wall of the first moving frame 31; the first moving frame 31 and the second moving frame 32 are connected through the second guide rail assembly 34; and the first moving frame 31 and the workbench body are connected through the first guide rail assembly 33.

[0049] When the laser cutting machine needs to be loaded or unloaded, the workbench 3 is moved forward along the second path under the action of the chain traction mechanism 1; conversely, when the laser cutting machine needs to cut the plate, the workbench 3 is reset (i.e., the first moving frame 31 and the second moving frame 32 are located directly below the workbench 3) under the action of the chain traction mechanism 1. The working principle is as follows: the upper moving block 35 is moved forward, and after abutting against the rear side wall of the first lower moving block 36, the first lower moving block 36 is continuously pushed to move forward, so that the first moving frame 31 and the second moving frame 32 move forward, i.e., the second forward movement is realized; similarly, the upper moving block 35 is moved backward, and after abutting against the front side wall of the second lower moving block 37, the second lower moving block 37 is continuously pushed to move backward, so that the first moving frame 31 and the second moving frame 32 move backward, i.e., the second backward movement is realized. The first guide rail assembly 33 and the second guide rail assembly 34 are used to guide the movement of the first moving frame 31 and the second moving frame 32, so that the first moving frame 31 and the second moving frame 32 can only move back and forth along the Y-axis direction.

[0050] Specifically, the first guide rail assembly 33 and the second guide rail assembly 34 can be composed of guide rails, sliding blocks, support beams, limiting blocks and the like, so that the support beams can move back and forth along the Y-axis direction under the guidance of the guide rails. The above structure is a prior art, which will not be described here.

[0051] Please refer to Figure 2 and Figures 6-7In some embodiments, a limiting mechanism 4 is further included for limiting the workbench 3, please refer to Figure 2 The limiting mechanism 4 includes a positioning hook 41 arranged on the workbench 3, a fixing seat 42 arranged on the base frame 10, a driving member 43 arranged on the fixing seat 42, a follower seat 44 fixedly connected with the output end of the driving member 43, and a positioning member 45 arranged on the follower seat 44. When the follower seat 44 is driven to ascend by the driving member 43, the positioning member 45 is moved in a direction away from the positioning hook 41. When the follower seat 44 is driven to descend by the driving member 43, the positioning member 45 is moved in a direction close to the positioning hook 41.

[0052] In order to achieve avoidance, the limiting mechanism 4 is arranged at the rear of the workbench 3. When the workbench 3 needs to cut the plate, the workbench 3 is moved in a direction close to the limiting mechanism 4 (rear). When the plate cutting is completed and the workbench 3 needs to unload the plate, the workbench 3 is moved in a direction away from the limiting mechanism 4 (front). Please refer to Figure 3 and Figure 6 When the workbench 3 is moved in a direction close to the limiting mechanism 4 (rear), the output end of the driving member 43 drives the follower seat 44 and the positioning member 45 arranged on the follower seat 44 to move downward until the positioning member 45 is located in the positioning hook 41. By the cooperation of the positioning hook 41 and the positioning member 45, the workbench 3 is "hooked" to achieve accurate positioning of the workbench 3. When the limiting of the workbench 3 needs to be released after the cutting is completed, the output end of the driving member 43 drives the follower seat 44 and the positioning member 45 arranged on the follower seat 44 to move upward, so that the positioning hook 41 and the positioning member 45 gradually separate. The above-mentioned limiting mechanism 4 can realize the positioning and release of the workbench 3 through the cooperation of the positioning hook 41 and the positioning member 455.

[0053] Please refer to Figure 6 In some embodiments, the opening of the positioning hook 41 faces upward, and the spacing of the opening of the positioning hook 41 gradually increases from bottom to top. That is, in the present embodiment, the positioning member 45 is located above the positioning hook 41, and under the action of the driving member 43, the positioning member 45 gradually moves from top to bottom to the bottom of the positioning hook 41. By limiting the spacing of the opening, a slope guide is provided for the movement of the positioning member 45, which facilitates the smooth movement of the positioning member 45.

[0054] Please refer to Figure 6In some embodiments, the positioning hook 41 comprises a mounting portion 411 for being fixedly connected with the rear sidewall of the workbench 3, a connecting portion 412 fixedly connected with the mounting portion 411, and an inclined plate 413 fixedly connected with the connecting portion 412, and the opening of the positioning hook 41 is formed by the connecting portion 412 and the inclined plate 413. In the present embodiment, the positioning hook 41 is formed by welding the mounting portion 411, the connecting portion 412 and the inclined plate 413, and the positioning hook 41 is divided into three parts, so that it is easy to form the special-shaped opening structure similar to a "V" shape on the positioning hook 41.

[0055] Referring to Figure 6 In some embodiments, the positioning member 45 is a first roller, the first roller is rotatable relative to the follower seat 44, and the first roller is configured to be in rolling contact with the inner wall of the inclined plate 413. When the workbench 3 moves gradually towards the limiting mechanism 4, the driving member 43 drives the follower seat 44 and the first roller to descend, and the first roller gradually comes into contact with the inner wall of the inclined plate 413 and rolls downward, and gradually rolls to the bottom of the positioning hook 41 under the guidance of the inclined surface of the inclined plate 413. Conversely, when the workbench 3 moves gradually away from the limiting mechanism 4, the first roller also comes into contact with the inner wall of the inclined plate 413 and rolls upward. The above arrangement can not only realize the follow-up limiting, but also reduce the friction between the positioning member 45 and the inclined plate 413.

[0056] Referring to Figure 7 and Figure 6 In some embodiments, the driving member 43 is a pneumatic cylinder, the cylinder body of the pneumatic cylinder is fixedly connected with the fixed seat 42, the output end of the pneumatic cylinder faces upward and penetrates through the fixed seat 42, and the output end of the pneumatic cylinder is fixedly connected with the follower seat 44. The output end of the pneumatic cylinder in the present embodiment only has a fully extended state or a fully retracted state, and the structure is simple. When the output end of the pneumatic cylinder is in the fully extended state, the follower seat 44 and the positioning member 45 are located at the highest point. When the output end of the pneumatic cylinder is in the fully retracted state, the follower seat 44 and the positioning member 45 are located at the lowest point.

[0057] Referring to Figure 7 and Figure 6 In some embodiments, the follower seat 44 comprises a horizontal plate 441 fixedly connected with the output end of the pneumatic cylinder, and a vertical plate 442 fixedly connected with the horizontal plate 441, and the horizontal plate 441 and the vertical plate 442 are perpendicular to each other; and the positioning member 45 is arranged outside the vertical plate 442. The follower seat 44 is formed by the horizontal plate 441 and the vertical plate 442 fixedly connected with each other, which is beneficial to the formation of the special-shaped follower seat 44. Specifically, the vertical plate 442 is provided with a notch 4423 facing the workbench 3. When the plate is subjected to laser cutting, the laser cutting assembly 90 moves to the periphery of the limiting mechanism 4, and the notch 4423 can increase the safety distance between the vertical plate 442 and the laser cutting assembly 90.

[0058] Referring to Figure 6 In some embodiments, the vertical plate 442 is provided with a mounting groove 4421, and one end of the horizontal plate 441 is inserted into the mounting groove 4421. Specifically, the mounting groove 4421 is a positioning mounting process opening, which facilitates the welding of the combined horizontal plate 441 and vertical plate 442.

[0059] Referring to Figure 7 and Figure 6 In some embodiments, the upper surface of the fixing seat 42 is provided with a guide plate 46, the vertical plate 442 is provided with a guide groove 4422 extending along the height direction thereof, and the guide plate 46 is located in the guide groove 4422; the height of the guide plate 46 is less than the height of the guide groove 4422. The guide groove 4422 can make the T-shaped follow-up seat 44 displace the guide plate 46 in the guide groove 4422 when moving up and down, thereby providing vertical guidance for the follow-up seat 44.

[0060] Referring to Figure 7 and ​ In some embodiments, the sidewall of the guide plate 46 is provided with a second roller 47, the second roller 47 can rotate relative to the guide plate 46, and the second roller 47 is used for rolling contact with the sidewall of the vertical plate 442. The above-mentioned arrangement can further provide vertical guidance for the up-and-down movement of the follow-up seat 44, so that the follow-up seat 44 moves more stably, that is, the first roller can more smoothly slide on the inclined surface of the inclined plate 413, thereby reducing the vibration frequency of the first roller.

[0061] In summary, the chain traction mechanism 1 is arranged on the inner sidewall of the chassis 10, the space of the chassis 10 is reasonably utilized, which is helpful to the compactness of the whole laser cutting machine structure, and compared with the prior art, the space occupation of the device in the X-axis direction is reduced, so that the device does not need to be disassembled before being loaded on the vehicle.

[0062] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0063] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or a specific number of the technical features indicated. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0064] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection or can communicate with each other; it can be direct connection, or indirect connection through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0065] It can be understood that for those skilled in the art, equivalent replacement or change can be made according to the technical scheme and the inventive concept of the present application, and all these changes or replacements shall belong to the protection scope of the present application.

Claims

1. A telescopic laser cutting machine, comprising a base frame, a crossbeam slidably mounted on the base frame, a first drive mechanism for driving the crossbeam to move along the Y-axis, an X-axis slide block slidably mounted on the crossbeam, a second drive mechanism for driving the X-axis slide block to move along the X-axis, a Z-axis slide block slidably mounted on the X-axis slide block, a third drive mechanism for driving the Z-axis slide block to move along the Z-axis, a laser cutting assembly mounted on the Z-axis slide block, a platform drive mechanism mounted on the base frame, and a worktable; wherein the platform drive mechanism is used to drive the worktable to move along the Y-axis; characterized in that, The platform drive mechanism is connected to the worktable via chain traction mechanisms located on both sides of the worktable along the X-axis. Each chain traction mechanism includes a mounting base fixed to a square tube on the base frame, two pressure bars fixed to the mounting base and arranged vertically, a tensioning seat slidably disposed between the two pressure bars, a driven sprocket rotatably connected to the tensioning seat, a driving sprocket connected to the driven sprocket via a chain, and a tensioning screw threaded to the mounting base. The tail of the tensioning screw abuts against the side wall of the tensioning seat, and the head of the tensioning screw faces the driven sprocket. The driving sprocket is connected to the platform drive mechanism via a drive shaft. The chain is fixed to the side wall of the workbench via a chain buckle; the workbench includes a workbench body, a movable frame fixed to the lower surface of the workbench body, a second movable frame disposed below the first movable frame, a guide rail assembly disposed inside the first movable frame, a second guide rail assembly disposed inside the second movable frame, an upper movable block disposed on the side wall of the first movable frame, and a first lower movable block and a second lower movable block disposed on the side wall of the second movable frame; the first lower movable block and the second lower movable block extend along the Y-axis direction, and the first lower movable block is located in front of the second lower movable block; The upper moving block is located between the first lower moving block and the second lower moving block, and the front sidewall of the upper moving block is used to abut against the rear sidewall of the first lower moving block, and the rear sidewall of the upper moving block is used to abut against the front sidewall of the second lower moving block; the chain buckle is fixedly connected to the sidewall of the first moving frame; the first moving frame and the second moving frame are slidably connected by a two-section guide rail assembly; the first moving frame and the worktable body are slidably connected by a guide rail assembly; it also includes a limiting mechanism for limiting the worktable, the limiting mechanism including a positioning hook disposed on the worktable, a fixed seat disposed on the base frame, a driving member disposed on the fixed seat, a follower seat fixedly connected to the output end of the driving member, and a positioning member disposed on the follower seat; when the driving member drives the follower seat to rise, it causes the positioning member to move away from the positioning hook; when the driving member drives the follower seat to fall, it causes the positioning member to move closer to the positioning hook.

2. The telescopic laser cutting machine according to claim 1, characterized in that, The mounting base has a waist-shaped hole, and the tensioning seat is movably disposed in the waist-shaped hole; the tensioning screw is also threaded with a tensioning nut, and the side wall of the tensioning nut is used to abut against the side wall of the mounting base.

3. The telescopic laser cutting machine according to claim 1, characterized in that, The inner sidewall of the base frame has an insertion slot with the same number as the mounting base, and the mounting base is fixed in the corresponding insertion slot.

4. The telescopic laser cutting machine according to claim 1, characterized in that, The outer side wall of the base frame has an inspection port, the number of which is the same as the number of mounting seats.

5. The telescopic laser cutting machine according to claim 1, characterized in that, An auxiliary support is also provided on the side wall of the crossbeam. The auxiliary support includes a vertically extending vertical rod and a horizontal rod that is fixed to the upper end of the vertical rod and extends laterally. The lower end of the vertical rod is fixed to the side wall of the crossbeam. The horizontal rod is located above the crossbeam, and the extension direction of the horizontal rod is consistent with the extension direction of the crossbeam. The free end of the horizontal rod is used to be fixed to the end of the X-axis drag chain.

6. The telescopic laser cutting machine according to claim 5, characterized in that, The auxiliary support also includes a plurality of support rods arranged at equal intervals. The lower ends of the plurality of support rods are used to be fixed to the rear side wall of the crossbeam, and the upper ends of the support rods are used to be fixed to the lower surface of the crossbeam.

7. The telescopic laser cutting machine according to claim 1, characterized in that, The upper surface of the fixed base is provided with a guide plate, and the follower base is provided with a guide groove extending along its height direction, and the guide plate is located in the guide groove; the height of the guide plate is less than the height of the guide groove.

8. The telescopic laser cutting machine according to claim 7, characterized in that, A second roller is provided on the side wall of the guide plate. The second roller can rotate relative to the guide plate and is used to make rolling contact with the side wall of the follower seat.

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