Plate lifting tool and laser cutting machine

Abstract

A plate lifting tool comprises hanging rings, a steel wire rope, connecting rings and hooks, the two ends of the steel wire rope are each provided with one hanging ring, the two connecting rings are arranged on the steel wire rope between the two hanging rings in a sleeved mode, each connecting ring is connected with one hook, and the hooks are hinged to the connecting rings. The gravity, borne by the steel wire rope, of a plate or a workpiece is converted into pulling force applied to the position between the two connecting rings, the pulling force is the clamping force applied to the plate or the workpiece by the two hooks, and compared with the prior art corresponding to the device, the clamping force is large, stable and improved in safety, and the laser cutting machine is further provided.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting technology, and in particular to a plate lifting tool and a laser cutting machine. Background Technology

[0002] Laser cutting is characterized by its high speed, smooth and flat cut, small heat-affected zone, minimal deformation of the sheet metal, and narrow kerf, making it widely used in sheet metal cutting and processing.

[0003] A laser cutting machine generally consists of a cutting platform, a traction device, a hoisting tool, and a laser cutting head. The sheet material is hoisted to the cutting platform. Under the action of the traction device, the cutting platform moves from the loading / unloading area to the working area. The laser cutting head can move in three dimensions relative to the cutting platform to cut the sheet material into workpieces. Under the action of the traction device, the cutting platform moves from the working area to the loading / unloading area, and the workpieces are hoisted away from the cutting platform.

[0004] Lifting tools come in various forms. For example, CN104925642U discloses a clamping device based on increasing the lifting size of sheet metal. This device includes a lifting beam with a hook at the top that cooperates with a crane. Two rows of hooks are symmetrically arranged on both sides of the beam. One end of a wire rope has a retaining ring that cooperates with the hook, and the other end has a gripping hook that cooperates with the sheet metal. The gripping hook includes a hook-shaped holding part, and the connecting end of the holding part has a U-shaped groove. A connecting plate is mounted in the U-shaped groove via a rotating shaft. One end of the connecting plate has a fixing hole that cooperates with the wire rope, and the other end extends into the holding part. By using a gripping hook at the end of the wire rope, the holding part of the gripping hook clamps the sheet metal during movement, and the end of the connecting plate extending into the holding part clamps the sheet metal, thus fixing it and preventing it from falling off the lifting device during movement.

[0005] As mentioned above, the clamping device can adapt to various sizes of plates. However, its shortcomings are that the clamping force of the hook on the plate is insufficient, the risk of the plate falling is high, and the safety is not high. Summary of the Invention

[0006] In view of this, and to address the above-mentioned shortcomings, it is necessary to propose a tool for lifting and transporting sheet metal.

[0007] It is also necessary to propose a laser cutting machine.

[0008] A plate hoisting tool includes a hanging ring, a steel wire rope, a connecting ring, and a hook. A hanging ring is provided at each end of the steel wire rope, and two connecting rings are inserted into the steel wire rope between the two hanging rings. Each connecting ring is connected to a hook, and the hook is hinged to the connecting ring.

[0009] Preferably, the plate hoisting tool includes a support cylinder, which is sleeved on the wire rope and positioned between two connecting rings.

[0010] Preferably, the connecting ring includes two parallel clamping plates, a rotating wheel, and a pin. The rotating wheel and the pin are located at both ends of the clamping plates. The two ends of the pin are fixedly connected to one clamping plate, and the two sides of the rotating wheel are rotatably connected to one clamping plate. The upper end of the hook is hinged to the clamping plate through the pin. The wire rope passes through the two clamping plates, the rotating wheel, and the pin.

[0011] A laser cutting machine includes a machine body, one end of which is a loading and unloading area, and the loading and unloading area is equipped with a plate lifting tool.

[0012] Preferably, the laser cutting machine includes a cutting platform, and the other end of the machine body is a working area. The working area is equipped with a laser cutting head, which can move in three dimensions relative to the working area. The cutting platform moves in a straight line along the machine body from the loading and unloading area to the working area, or from the working area to the loading and unloading area.

[0013] Preferably, the cutting platform includes a rectangular frame, and the machine body includes a guide rail and a machine body. The guide rail is disposed on the machine body, and the rectangular frame moves linearly along the guide rail.

[0014] Preferably, the cutting platform includes a crossbeam, a longitudinal beam, and support bars. The crossbeams and longitudinal beams are arranged in a crisscross pattern within the rectangular frame. Several support bars are arranged along the longitudinal direction of the rectangular frame. The support bars are engaged with the longitudinal beams. The inner longitudinal side of the rectangular frame is provided with a side groove. One side edge of a support bar corresponds to one side groove, and the side edge of the support bar is engaged with the side groove.

[0015] Preferably, the longitudinal beam is provided with a bottom groove, the upper edge of the support bar is provided with a row of pointed tips, the lower edge of the support bar is inserted into the bottom groove, and the pointed tips of at least two support bars are arranged alternately.

[0016] Preferably, the machine body is provided with two guide rails, one above the other, and a cutting platform is provided on each guide rail.

[0017] Preferably, the machine body includes machine legs, with several machine legs evenly distributed below the machine body. Each machine leg includes a leg body, a screw rod, a leg base, a first nut, and a second nut. The upper end of the leg body is connected to the machine body, and the lower end of the leg body is provided with a screw hole. The upper end of the screw rod is threaded into the screw hole, and the lower end of the screw rod is fixed to the leg base. The first nut is installed on the screw rod and is located between the leg base and the leg body. The second nut is installed on the screw rod and is located between the leg base and the first nut.

[0018] Beneficial effects: The weight of the plate or workpiece borne by the wire rope is converted into a tensile force applied between the two connecting rings. This tensile force is also the clamping force applied by the two hooks to the plate or workpiece. Compared with the prior art corresponding to this application, this clamping force is not only larger but also more stable, thus improving safety. Attached Figure Description

[0019] Figure 1 This is a structural diagram of a tool for lifting sheet metal.

[0020] Figure 2 This is a schematic diagram of the hoisting tool clamping a plate or workpiece.

[0021] Figure 3 A schematic diagram of a hoisting tool used to clamp a plate or workpiece for installing a support cylinder.

[0022] Figure 4 This is a left view of a laser cutting machine, illustrating a working state of the sheet metal lifting tool.

[0023] Figure 5 This is the front view of the laser cutting machine.

[0024] Figure 6 This is a top view of a laser cutting machine.

[0025] Figure 7 for Figure 6 A cross-sectional view of a laser cutting machine along the AA direction; some structures are not shown.

[0026] Figure 8 This is a schematic diagram showing the connection status between the traction component and the chain.

[0027] Figure 9 This is a top view of the cutting platform, and also a partial sectional view of the cutting platform.

[0028] Figure 10 This is the main view of the cutting platform.

[0029] Figure 11 This is the right view of the cutting platform.

[0030] Figure 12 for Figure 6 A magnified view of a laser cutting machine.

[0031] Figure 13 This is an isometric view of the arrangement of the support bars.

[0032] Figure 14 This is a schematic diagram of the machine leg structure.

[0033] The diagram shows: cutting platform 10, rectangular frame 11, crossbeam 12, longitudinal beam 13, support bar 14, pressure plate 15, fastening bolt 16, plate 20, machine body 30, machine frame 31, guide rail 32, anti-derailment device 33, fixed block 331, movable block 332, machine leg 34, leg body 341, screw 342, leg bottom 343, first nut 344, second nut 345, traction device 40, traction component 41, first end 411, second end 412, third end 413, chain 42, first connecting piece 421, second connecting piece 422, first connecting shaft 423, second connecting shaft 424, driving gear 43, driven gear 44, plate lifting tool 50, hanging ring 51, wire rope 52, support cylinder 53, connecting ring 54, clamping plate 541, rotating wheel 542, pin shaft 543, hook 55, laser cutting head 80. Detailed Implementation

[0034] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] See Figure 1 This utility model provides a plate hoisting tool 50, including a hanging ring 51, a steel wire rope 52, a connecting ring 54, and a hook 55. A hanging ring 51 is provided at each end of the steel wire rope 52. Two connecting rings 54 are fitted onto the steel wire rope 52 between the two hanging rings 51. Each connecting ring 54 is connected to a hook 55, and the hook 55 is hinged to the connecting ring 54.

[0036] See Figure 2 The upper end of the hook 55 is hinged to the connecting ring 54, and the lower end of the hook 55 is used to engage the edge of the plate 20 or the workpiece. The length of the wire rope 52 between the two connecting rings 54 can be adaptively adjusted according to the different sizes of the plate 20 or the workpiece.

[0037] Beneficial effects: The weight of the plate 20 or workpiece borne by the wire rope 52 is converted into a tensile force applied between the two connecting rings 54. This tensile force is also the clamping force applied by the two hooks 55 to the plate 20 or workpiece. Compared with the prior art corresponding to this application, this clamping force is not only larger but also more stable, thus improving safety.

[0038] See Figure 3 Furthermore, the plate hoisting tool 50 includes a support cylinder 53, which is sleeved on the wire rope 52 and is located between two connecting rings 54.

[0039] The support cylinder 53 can improve the rigidity of the lifting tool 50. Multiple support cylinders 53 of different lengths can be configured to accommodate different specifications of plates 20 or workpieces. Alternatively, the support cylinder 53 can be a telescopic structure, which is a conventional method and will not be described in detail. Or, when the two hooks 55 of the same lifting tool 50 are clamping the plate 20 or workpiece, they can be installed at an angle to accommodate the predetermined length of the support cylinder 53. The so-called angled installation means that the line connecting the two hooks 55 is not perpendicular to the length direction of the plate 20 or workpiece.

[0040] See Figure 4 Furthermore, the connecting ring 54 includes two parallel clamping plates 541, a rotating wheel 542, and a pin 543. The rotating wheel 542 and the pin 543 are located at both ends of the clamping plate 541. The two ends of the pin 543 are fixedly connected to one clamping plate 541, and the two sides of the rotating wheel 542 are rotatably connected to one clamping plate 541. The upper end of the hook 55 is hinged to the clamping plate 541 through the pin 543. The wire rope 52 passes through the two clamping plates 541 and between the rotating wheel 542 and the pin 543.

[0041] See Figure 4 This utility model provides a laser cutting machine, including a machine body 30, one end of which is a loading and unloading area, and the loading and unloading area is equipped with a plate lifting tool 50.

[0042] When transferring the sheet metal 20 or the workpiece, two hoisting tools 50 are used. The two hooks 55 of one hoisting tool 50 are inserted into both sides of one end of the sheet metal 20 or the workpiece, and the two hooks 55 of the other hoisting tool 50 are inserted into both sides of the other end of the sheet metal 20 or the workpiece. The four hanging rings 51 of the two hoisting tools 50 are put onto the hooks of the crane. Driven by the crane, the workpiece is sent to or away from the cutting platform 10 in the loading and unloading area.

[0043] See Figure 4 , Figure 5 Furthermore, the laser cutting machine includes a cutting platform 10, and the other end of the machine body 30 is a working area. The working area is equipped with a laser cutting head 80, which can move in three dimensions relative to the working area. The cutting platform 10 moves in a straight line along the machine body 30 from the loading and unloading area to the working area, or moves in a straight line from the working area to the loading and unloading area.

[0044] The laser cutting head 80 moves up and down, left and right, and forward and backward relative to the working area using a conventional structure, which is not limited in this application.

[0045] For example, the work area is enclosed in a working chamber, and the inner cavity of the working chamber is connected to a dust removal device. The dust removal device adopts a conventional structure, which is not limited in this application.

[0046] See Figure 6Furthermore, the cutting platform 10 includes a rectangular frame 11, and the machine body 30 includes a guide rail 32 and a machine body 31. The guide rail 32 is disposed on the machine body 31, and the rectangular frame 11 moves linearly along the guide rail 32.

[0047] See Figure 8 Furthermore, the laser cutting machine includes a traction device 40, which includes a traction component 41, a chain 42, a drive gear 43, and a driven gear 44. The drive gear 43 and the driven gear 44 are both mounted on the machine body 31. The traction component 41 is T-shaped and includes a first end 411, a second end 412, and a third end 413. The third end 413 is fixedly connected to the rectangular frame 11. The first end of the chain 42 is connected to the first end 411, and the second end of the chain 42 passes around the drive gear 43 and the driven gear 44 in sequence and is connected to the second end 412.

[0048] For example, the cutting platform 10 includes rollers, which are mounted on a rectangular frame 11 and roll in cooperation with the guide rail 32.

[0049] The traction component 41 is fixedly connected to the rectangular frame 11. Besides driving the chain 42 through the rectangular frame 11, the traction component 41 also constrains the chain 42 from deviating from the motion plane. This reduces the possibility of abnormally increased traction force due to local deviation of the chain 42 from the motion plane, thus reducing the likelihood of chain 42 breakage. The motion plane can be understood as the plane containing the driving gear 43 or the driven gear 44.

[0050] See Figure 5 , Figure 7 , Figure 8 Furthermore, the chain 42 includes a first connecting piece 421, a second connecting piece 422, a first connecting shaft 423, and a second connecting shaft 424. The first connecting shaft 423 is located at the first end 411, and the second connecting shaft 424 is located at the second end 412. A first connecting piece 421 is provided on each side of the first end of the chain 42, and the first end of the chain 42 is rotatably connected to the first connecting piece 421. The two first connecting pieces 421 are respectively rotatably connected to the first connecting shafts 423 on both sides of the first end 411. A second connecting piece 422 is provided on each side of the second end of the chain 42, and the second end of the chain 42 is rotatably connected to the second connecting piece 422. The two second connecting pieces 422 are respectively rotatably connected to the second connecting shafts 424 on both sides of the second end 412. With forces borne on both sides of the chain 42, the probability of chain breakage is reduced.

[0051] See Figure 6Furthermore, the cutting platform 10 includes a crossbeam 12, a longitudinal beam 13, and support bars 14. The crossbeams 12 and longitudinal beams 13 are arranged in a crisscross pattern within the rectangular frame 11. Several support bars 14 are arranged along the longitudinal direction of the rectangular frame 11. The support bars 14 are engaged with the longitudinal beams 13. The inner longitudinal side of the rectangular frame 11 is provided with a side groove. One side edge of a support bar 14 corresponds to one side groove, and the side edge of the support bar 14 is engaged into the side groove.

[0052] See Figures 9 to 12 Furthermore, the cutting platform 10 includes a pressure plate 15 and fastening bolts 16. A top slot is provided on the longitudinal inner side of the rectangular frame 11, located above the side slots and communicating with them. The pressure plate 15 has a first connecting hole, and the rectangular frame 11 has a second connecting hole. The pressure plate 15 is inserted into the top slot, and the first and second connecting holes are coaxial. The fastening bolts 16 pass through the first connecting hole and are threadedly connected to it. The shape of the pressure plate 15 matches the shape of the top slot. The first connecting hole is precisely aligned with the second connecting hole, and the fastening bolts 16 fix the pressure plate 15 relative to the rectangular frame 11. The pressure plate 15 presses against the support bar 14, preventing the support bar 14 from dislodging from the side slots. The rectangular frame 11, crossbeam 12, and longitudinal beam 13 are fixedly connected as a single unit. The support bar 14 is installed and replaced independently, avoiding unnecessary wear and tear. The pressure plate 15, in conjunction with the top slot, assists in the precise positioning of the first and second connecting holes, enabling rapid installation of the fastening bolts 16.

[0053] For example, the length direction of the rectangular frame 11 is longitudinal, the width direction of the rectangular frame 11 is transverse, the two ends of the crossbeam 12 are fixedly connected to the longitudinal inner sides of the two rectangular frames 11, and the two ends of the longitudinal beam 13 are fixedly connected to the transverse inner sides of the two rectangular frames 11. The rectangular frame 11, the crossbeam 12, and the longitudinal beam 13 are integrally connected.

[0054] For example, the side slots extend vertically through the rectangular frame 11, and several side slots are arranged longitudinally along the rectangular frame 11. The width of the side slots is equal to the thickness of the support strip 14, and the height of the side slots is equal to the height of the side edge of the support strip 14.

[0055] For example, the support bar 14 and the crossbeam 12 are located on the same side of the longitudinal beam 13, the support bar 14 is parallel to the crossbeam 12, and the width of the bottom slot is equal to the thickness of the support bar 14.

[0056] For example, there are two rows of side slots, which are respectively located on both sides of the rectangular frame 11, and two top slots, which are respectively located on both sides of the rectangular frame 11.

[0057] For example, the length of the pressure plate 15 is less than the length of the top slot. Because the pressure plate 15 is shorter than the top slot, it is easier to insert the pressure plate 15 into the top slot. As long as the two outer sides of the pressure plate 15 contact the two inner sides of the top slot, the first and second connecting holes are precisely positioned, making bolt installation faster.

[0058] See Figure 6 , Figure 13 Furthermore, the longitudinal beam 13 is provided with a bottom groove, the upper edge of the support bar 14 is provided with a row of pointed tips, the lower edge of the support bar 14 is inserted into the bottom groove, and the pointed tips of at least two support bars 14 are arranged alternately.

[0059] The tip has a triangular tooth-like structure, and the 20 cutting lines on the plate are relatively regular. The staggered arrangement can reduce the number of tips damaged by the laser during a single cut.

[0060] See Figure 6 For example, the body 30 includes an anti-derailment device 33. An anti-derailment device 33 is provided at each end of the guide rail 32. The anti-derailment device 33 includes a fixed block 331 and a movable block 332. The fixed block 331 is fixedly connected to the body 31, and the movable block 332 is movably placed between the guide rail 32 and the fixed block 331.

[0061] See Figures 4 to 7 Furthermore, the machine body 31 is provided with two guide rails 32, one above the other, and a cutting platform 10 is provided on each guide rail 32.

[0062] For example, the chain 42 is provided with two traction members 41, which are respectively fixedly connected to the rectangular frame 11 of a cutting platform 10.

[0063] For example, a traction device 40 is provided on each side of the cutting platform 10, and the synchronization of the two drive gears 43 is a conventional method, which will not be described in detail.

[0064] For example, there are two cutting platforms 10. One cutting platform 10 is in the loading and unloading area for loading the sheet metal 20 or unloading the workpiece, and the other cutting platform 10 is in the working area for cutting the sheet metal 20. The two cutting platforms 10 are used alternately.

[0065] See Figure 14Furthermore, the body 30 includes legs 34, with several legs 34 evenly distributed below the body 31. Each leg 34 includes a leg body 341, a screw 342, a leg base 343, a first nut 344, and a second nut 345. The upper end of the leg body 341 is connected to the body 31, and the lower end of the leg body 341 is provided with a screw hole. The upper end of the screw 342 is threaded into the screw hole, and the lower end of the screw 342 is fixed to the leg base 343. The first nut 344 is installed on the screw 342 and is located between the leg base 343 and the leg body 341. The second nut 345 is installed on the screw 342 and is located between the leg base 343 and the first nut 344.

[0066] For example, the leg base 343 is disc-shaped and contacts the ground. The first nut 344 is used for locking. The second nut 345 is fixedly connected to the leg base 343. When adjusting the height of the leg base 343, the second nut 345 is rotated with a wrench to rotate the leg base 343, thereby adjusting the height of the leg base 343.

[0067] The modules or units in the device of this utility model embodiment can be merged, divided, or deleted according to actual needs.

[0068] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A sheet material handling tool, characterized by: The utility model provides a hanging ring, steel wire rope, connecting ring, hook, both ends of steel wire rope are equipped with a hanging ring respectively, two connecting rings are sleeved on the steel wire rope between two hanging rings, every connecting ring connects a hook, the hook is hinged with the connecting ring.

2. The sheet material handling tool of claim 1, wherein: The plate lifting tool comprises a supporting cylinder, the supporting cylinder is sleeved on the steel wire rope, and the supporting cylinder is arranged between the two connecting rings.

3. The sheet material handler of claim 1, wherein: The connecting ring comprises two parallel clamping plates, a rotating wheel and a pin shaft, the rotating wheel and the pin shaft are arranged at two ends of the clamping plate, the two ends of the pin shaft are fixedly connected with the clamping plate respectively, the two sides of the rotating wheel are rotatably connected with the clamping plate respectively, the upper end of the hook is hinged with the clamping plate through the pin shaft, and the steel wire rope passes through between the two clamping plates and the rotating wheel and the pin shaft.

4. A laser cutting machine characterized by: The utility model provides a hanging ring, steel wire rope, connecting ring, hook, both ends of steel wire rope are equipped with a hanging ring respectively, two connecting rings are sleeved on the steel wire rope between two hanging rings, every connecting ring connects a hook, the hook is hinged with the connecting ring.

5. The laser cutting machine of claim 4, wherein: The laser cutting machine comprises a cutting platform, the other end of the machine body is a working area, the working area is provided with a laser cutting head, the laser cutting head can move three-dimensionally relative to the working area, and the cutting platform moves linearly along the machine body from the loading and unloading area to the working area or from the working area to the loading and unloading area.

6. The laser cutting machine of claim 5, wherein: The cutting platform comprises a rectangular frame, the machine body comprises guide rails and a machine body, the guide rails are arranged on the machine body, and the rectangular frame moves linearly along the guide rails.

7. The laser cutting machine of claim 6, wherein: The cutting platform comprises cross beams, longitudinal beams and support strips, the cross beams and the longitudinal beams are arranged in a crisscross manner in the rectangular frame, a plurality of support strips are arranged along the longitudinal direction of the rectangular frame, the support strips are clamped with the longitudinal beams, the longitudinal inner side of the rectangular frame is provided with side clamping grooves, one side edge of the support strip corresponds to one side clamping groove, and the side edge of the support strip is clamped into the side clamping groove.

8. The laser cutting machine of claim 7, wherein: The longitudinal beam is provided with a bottom clamping groove, the upper edge of the support strip is provided with a row of sharp ends, the lower edge of the support strip is clamped into the bottom clamping groove, and the sharp ends of at least two support strips are arranged in a staggered manner.

9. The laser cutting machine of claim 6, wherein: The machine body is provided with two guide rails on the upper side and the lower side, and each cutting platform is arranged correspondingly.

10. The laser cutting machine of claim 6, wherein: The machine body comprises legs, a plurality of legs are uniformly distributed below the machine body, the leg comprises a leg body, a screw rod, a leg bottom, a first nut and a second nut, the upper end of the leg body is connected with the machine body, the lower end of the leg body is provided with a threaded hole, the upper end of the screw rod is threadedly connected with the threaded hole, the lower end of the screw rod is fixedly provided with the leg bottom, the first nut is arranged on the screw rod and located between the leg bottom and the leg body, and the second nut is arranged on the screw rod and located between the leg bottom and the first nut.

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