A thick plate laser cutting workbench with automatic discharging function

Abstract

A kind of thick plate laser cutting workbench with automatic discharge function, including two transverse slide rods and two longitudinal slide rods, two transverse slide rods and two longitudinal slide rods are enclosed into rectangular workbench;Multiple inner-rotatable column mounting slots are provided on longitudinal slide rod along longitudinal direction, and inner-rotatable column mounting slots are hinged with inner-rotatable column through column shaft;Triangular sliding block is symmetrically provided on the two sides of inner-rotatable column along longitudinal direction, and inner-rotatable column rotates inward under the action of hypotenuse of triangular sliding block;It also includes automatic discharge device, and automatic discharge device includes discharge guide rail, suction pad support guide rail, pneumatic telescopic rod, discharge support disc and electromagnetic coil.The present application can effectively avoid the damage caused by the irradiation of high-energy laser beam on the workbench itself during cutting process, and the accumulation problem of metal slag during cutting process.Discharge support disc can quickly take out the product under the adsorption effect of electromagnetic force, effectively solve the problem that the product is difficult to take out due to heat deformation or metal slag.

Description

Technical Field

[0001] This invention relates to a thick plate laser cutting worktable with automatic material unloading function. Background Technology

[0002] With the large-scale application of laser cutting technology, the demand for thick plate laser cutting is constantly increasing in fields such as bridge construction, shipbuilding, and special equipment production, making it increasingly important to improve production efficiency. Current thick plate laser cutting equipment suffers from problems such as the support components being easily damaged by laser irradiation during plate cutting, the generation of large amounts of molten metal slag that are difficult to clean, and the difficulty in removing the cut product from the base material.

[0003] On March 1, 2019, patent application CN 208556381 U, entitled "Laser Cutting Workbench," disclosed a laser cutting workbench device. This workbench is mainly composed of a support area formed by multiple detachable toothed racks and an outer frame. Each toothed rack in the support area is independently detachable for easy maintenance and replacement. However, this method has problems: when a high-power laser cuts through a sheet metal, the irradiation on the toothed racks can cause serious damage; the finished product is difficult to remove; and the frequent replacement of the toothed racks reduces production efficiency and increases equipment maintenance costs.

[0004] On May 28, 2021, patent application CN 213289098 U, entitled "A Laser Cutting Worktable," disclosed a laser cutting worktable device. This worktable mainly consists of a support platform with multiple parallel rods and a conveyor belt at the bottom. The support platform with multiple parallel rods can, to some extent, prevent the support plate from contacting the cutting position of the product. The conveyor belt at the bottom outputs the cut product. However, this method has problems: products cut from thick plates cannot be guaranteed to automatically fall onto the conveyor belt, and during cutting, the high-energy laser beam and molten metal slag can come into contact with the bottom conveyor belt, causing serious damage. Summary of the Invention

[0005] To overcome the above problems, the present invention provides a thick plate laser cutting worktable with automatic material unloading function.

[0006] The technical solution adopted in this invention is: a thick plate laser cutting worktable with automatic material unloading function, including two horizontal slide bars and two vertical slide bars, the two horizontal slide bars and the two vertical slide bars together form a rectangular worktable;

[0007] The left and right ends of the transverse slide rod are respectively provided with longitudinal guide rails extending along the longitudinal direction, and the bottom of the longitudinal guide rails are supported by support plates; the left and right ends of the transverse slide rod are respectively connected to downward transverse slide rod sliders, which are slidably connected to the longitudinal guide rails, and the two transverse slide rods can move closer or further away from each other along the longitudinal guide rails.

[0008] The longitudinal slide rod has transverse guide rails extending laterally at its front and rear ends, and the left and right ends of the transverse guide rails are connected to the inner sides of the two longitudinal guide rails respectively. The longitudinal slide rod sliders are connected to the front and rear ends of the longitudinal slide rod respectively, and the longitudinal slide rod sliders are slidably connected to the transverse guide rails. The two longitudinal slide rods can move closer or further apart along the transverse guide rails.

[0009] The height of the transverse slide bar is higher than that of the longitudinal slide bar, and the bottom of the left and right ends of the transverse slide bar is in contact with the top surface of the longitudinal slide bar; the longitudinal slide bar is provided with multiple rotatable column mounting slots along the longitudinal direction, and rotatable columns are hinged in the rotatable column mounting slots through column shafts; the rotatable columns are inverted L-shaped, and the top surface of the rotatable columns is flush with the top surface of the transverse slide bar; the column shaft is set along the longitudinal direction, and a return torsion spring is sleeved on the column shaft, with both ends of the return torsion spring being engaged in the rotatable column mounting slots;

[0010] The rotatable column has symmetrical triangular sliding blocks on both sides along the longitudinal direction. The triangular sliding blocks are slidably set in the longitudinal grooves on both sides of the rotatable column. The triangular sliding block is a right-angled triangular plate. The long right-angle side of the triangular sliding block is slidably engaged with the outer groove wall of the longitudinal groove. The hypotenuse of the triangular sliding block is inclined from the end away from the rotatable column to the end closer to the rotatable column. The short right-angle side of the triangular sliding block is connected to the return spring. The other end of the return spring is connected to the spring fixing seat.

[0011] The top of the outer wall of the longitudinal groove has a trigger sliding groove along the longitudinal direction, and an inner rotary trigger is slidably connected in the trigger sliding groove. The inner rotary trigger includes a dial and a dial shaft, with the dial mounted on the dial shaft. The dial shaft is arranged in the transverse direction, and one end of the dial shaft is slidably connected in the trigger sliding groove. The dial is higher than the top surface of the longitudinal groove, and a first anti-rotation torsion spring and a second anti-rotation torsion spring are respectively installed on both sides of the dial in the transverse direction. The two ends of the first anti-rotation torsion spring and the second anti-rotation torsion spring are respectively connected to the dial and the dial shaft, and the first anti-rotation torsion spring and the second anti-rotation torsion spring rotate in opposite directions.

[0012] When the horizontal slide bar moves longitudinally, it drives the internal rotating trigger in the trigger sliding groove to move. The dial of the internal rotating trigger drives the triangular sliding block to move. Under the action of the hypotenuse of the triangular sliding block, the internal rotating column can rotate inward around the column axis. After the horizontal slide bar passes the internal rotating column, the triangular sliding block is reset under the action of the return spring, and the internal rotating column is reset under the action of the return torsion spring.

[0013] It also includes an automatic discharge device, which includes a discharge guide rail, a suction cup support guide rail, a pneumatic telescopic rod, a discharge support plate, and an electromagnetic coil. The inner sides of the two support plates are connected to longitudinally extending discharge guide rails, and the rear end of the discharge guide rails extends out of the longitudinal guide rails. A transversely extending suction cup support guide rail is slidably connected between the two discharge guide rails. A pneumatic telescopic rod is slidably connected to the suction cup support guide rail. The output shaft of the pneumatic telescopic rod is vertically upward and connected to the discharge support plate. An electromagnetic coil is embedded on the top surface of the discharge support plate.

[0014] Furthermore, a limiting plate is provided at the ends of the two longitudinal slide blocks on the same longitudinal slide rod that are far apart from each other. The height of the limiting plate is higher than the height of the transverse slide rod to prevent the transverse slide rod from exceeding its stroke.

[0015] Furthermore, the discharge support plate is square, polygonal, or cross-shaped, and the upper surface of the discharge support plate is coated with an anti-slip material.

[0016] Furthermore, the electromagnetic coil is connected to a DC power supply or an AC power supply.

[0017] The beneficial effects of this invention are:

[0018] (1) Compared with the dot matrix support platform, the worktable in this invention can effectively simplify the internal drive structure of the device and effectively reduce costs.

[0019] (2) The worktable can provide non-contact support for the bottom of the plate to be cut. This support mode can effectively avoid damage to the worktable itself caused by high-energy laser beam irradiation during the cutting process, as well as the problem of metal slag accumulation during the cutting process. This reduces the maintenance cost of the equipment and improves the cleanliness of the equipment operating environment.

[0020] (3) The discharge module with electromagnetic adsorption effectively avoids damage to the discharge structure itself caused by high-energy laser beam irradiation while enabling automatic discharge. The discharge support plate can quickly remove the product under the adsorption of electromagnetic force, effectively solving the problem of products being difficult to remove due to heat deformation or metal slag jamming. At the same time, the adsorption plate can also provide apex auxiliary support under the plate to ensure the stability of larger cut products. This effectively reduces the maintenance cost of the equipment and improves production efficiency. Attached Figure Description

[0021] Figure 1 This is an isometric view of the present invention;

[0022] Figure 2 This is an isometric view of the sheet metal laser cutting worktable;

[0023] Figure 3 It is an isometric view of a column that can rotate inwards;

[0024] Figure 4This is an isometric view of an internal spin trigger;

[0025] Figure 5 This is an isometric view of the automatic discharge device;

[0026] Figure 6 It is an isometric view of a small product block cut;

[0027] Figure 7 It is an isometric view of a large product block cut into pieces. Detailed Implementation

[0028] The technical solution of this invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0029] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] Referring to the accompanying drawings, a thick plate laser cutting worktable with automatic material unloading function includes two horizontal slide bars 101 and two vertical slide bars 103, which together form a rectangular worktable.

[0032] The left and right ends of the transverse slide bar 101 are respectively provided with longitudinal guide rails extending longitudinally, and the bottom of the longitudinal guide rails are supported by support plates 102; the left and right ends of the transverse slide bar 101 are respectively connected to downward transverse slide bar sliders 201, and the transverse slide bar sliders 201 are slidably connected to the longitudinal guide rails, and the two transverse slide bars 101 can move closer or further away from each other along the longitudinal guide rails.

[0033] The longitudinal slide rod 103 has transverse guide rails extending laterally at its front and rear ends, and the left and right ends of the transverse guide rails are connected to the inner sides of the two longitudinal guide rails respectively. The longitudinal slide rod 103 has longitudinal slide sliders 202 connected to its front and rear ends, and the longitudinal slide sliders 202 are slidably connected to the transverse guide rails. The two longitudinal slide rods 103 can move closer or further apart along the transverse guide rails. The ends of the two longitudinal slide sliders 202 on the same longitudinal slide rod 103 that are far apart from each other are provided with limiting plates. The height of the limiting plates is higher than the height of the transverse slide rod 101 to prevent the transverse slide rod 101 from exceeding its stroke.

[0034] Since the relative positions between the longitudinal slide bar 103 and the transverse slide bar 101 can be adjusted to form support surfaces of different sizes, they can support plates of different sizes.

[0035] The height of the transverse slide bar 101 is higher than the height of the longitudinal slide bar 103, and the bottom of the left and right ends of the transverse slide bar 101 is in contact with the top surface of the longitudinal slide bar 103. The longitudinal slide bar 103 is provided with multiple rotatable column mounting slots along the longitudinal direction, and a rotatable column 203 is hinged in the rotatable column mounting slot through a column shaft. The rotatable column 203 is inverted L-shaped, and the top surface of the rotatable column 203 is flush with the top surface of the transverse slide bar 101. The column shaft is arranged along the longitudinal direction, and a return torsion spring 304 is sleeved on the column shaft. The two ends of the return torsion spring 304 are engaged in the rotatable column mounting slot.

[0036] The rotatable column 203 is symmetrically provided with triangular sliding blocks 301 on both sides along the longitudinal direction. The triangular sliding blocks 301 are slidably disposed in the longitudinal grooves provided on both sides of the rotatable column 203. The triangular sliding block 301 is a right-angled triangular plate. The long right-angle side of the triangular sliding block 301 is slidably engaged with the outer groove wall of the longitudinal groove. The hypotenuse of the triangular sliding block 301 is inclined from the end away from the rotatable column 203 to the end closer to the rotatable column 203. The short right-angle side of the triangular sliding block 201 is connected to the return spring 320. The other end of the return spring 302 is connected to the spring fixing seat.

[0037] The top of the inner and outer walls of the longitudinal groove has a trigger sliding groove 402 along the longitudinal direction. An inner rotary trigger 303 is slidably connected in the trigger sliding groove 402. The inner rotary trigger 303 includes a dial and a dial shaft. The dial is fitted on the dial shaft. The dial shaft is arranged in the transverse direction. One end of the dial shaft is slidably connected in the trigger sliding groove 402. The upper part of the dial is higher than the top surface of the longitudinal groove. A first anti-rotation torsion spring 401a and a second anti-rotation torsion spring 401b are respectively installed on both sides of the dial in the transverse direction. The two ends of the first anti-rotation torsion spring 401a and the second anti-rotation torsion spring 401b are respectively connected to the dial and the dial shaft. The first anti-rotation torsion spring 401a and the second anti-rotation torsion spring 401b rotate in opposite directions.

[0038] Specifically, when the horizontal slide bar 101 slides to the vicinity of the rotatable column 203, it drives the trigger slide groove 402 to slide towards the rotatable column 203. At this time, the trigger slide groove 402 will not rotate immediately under the restriction of the first anti-rotation torsion spring 401a and the second anti-rotation torsion spring 401b on both sides. Instead, it slides towards the rotatable column 203 within the trigger slide groove 402, thereby driving the triangular slide block 301 to move towards the rotatable column 203. The hypotenuse of the triangular slide block 301 will drive the rotatable column 203 to rotate inward, and then the horizontal slide bar 101 will pass over the rotatable column 203 on the vertical slide bar 103. When the horizontal slide bar 101 passes over the rotatable column 203, the return spring 302 will drive the triangular slide block 301 to reset. At the same time, the rotatable column 203 will reset under the action of the return torsion spring 304.

[0039] For ease of installation, a slider cover plate 306 is provided on the top of the longitudinal slide groove, and the slider cover plate 306 is fixedly connected to the top of the spring fixing seat by cover plate bolts 307; a column shaft cover plate 305 is provided on the outside of the column shaft in the rotatable column mounting groove.

[0040] It also includes an automatic discharging device, which comprises a discharging guide rail 504, a suction cup support guide rail 503, a pneumatic telescopic rod 502, a discharging support plate 501, and an electromagnetic coil 505. The inner sides of two support plates 102 are respectively connected to longitudinally extending discharging guide rails 504, with the rear ends of the discharging guide rails 504 extending beyond the longitudinal guide rails. A transversely extending suction cup support guide rail 503 is slidably connected between the two discharging guide rails 504. A pneumatic telescopic rod 502 is slidably connected to the suction cup support guide rail 503. The output shaft of the pneumatic telescopic rod 502 is vertically upward and connected to the discharging support plate 501. An electromagnetic coil 505 is embedded in the top surface of the discharging support plate 501, and the electromagnetic coil 505 is connected to a DC or AC power supply. The discharging support plate 501 is square, polygonal, or cross-shaped, and its upper surface is coated with an anti-slip material.

[0041] The discharge guide rail 504 and suction cup support guide rail 503 ensure product discharge from any position. When the laser is cutting, the discharge support plate 501, with the help of the moving structure, positions itself at the lower end of the cutting block before the remaining 10%-25% is cut, thus supporting the cutting block in case it falls directly. If the cutting block gets stuck due to molten metal slag or heat deformation, the product is attracted by the magnetic force provided by the energized electromagnetic coil 505, and then removed by the downward retraction of the pneumatic telescopic rod 502.

[0042] Whether the product falls directly during cutting or gets stuck, it can be held in place by the support plate 501 and the electromagnetic coil 505. Then, it is taken out by the pneumatic telescopic rod 502, and then moved to the position where the discharge guide rail 504 protrudes outside the worktable with the help of the moving structure composed of the suction cup support rail 503 and the discharge guide rail 504 to complete the automatic discharge.

[0043] Example 1

[0044] See attached document Figure 6 In this example, a 0.3m x 0.3m small product block 601 is cut from a 30mm thick 2m x 2m stainless steel sheet. First, the relative positions of the column-less slide bar 101 and the slide bar with a column 103 on the worktable are adjusted according to the size of the sheet to form a 2m x 2m square support area, so that the material can be placed stably on the worktable. Then, the shape of the product to be cut and the entry point, stopping position, and magnetic force of the suction plate 501 below are edited in the control system to ensure that the suction plate can attract and hold the product. Then, the laser cutting parameters are set to start cutting the sheet. The suction plate 501 will run according to the preset program, attract and remove the product, and then transport it to the outer end of the discharge slide bar 504 protruding from the worktable to complete the cutting and automatic discharge of the product.

[0045] Example 2

[0046] See attached document Figure 7 This example involves cutting a 1m*1m large product block 701 from a 30mm thick 2m*2m stainless steel sheet. The worktable adjustment method and laser cutting parameters are the same as in Example 1. The main difference in this example is the entry time of the suction plate 501. Before the last side of the large product block is cut, the suction plate 501 moves to the set point, and the pneumatic telescopic rod 502 extends upward to support the large product block, preventing it from twisting and deforming the last cut end due to its own weight. After cutting, a certain electromagnetic adsorption force is added to remove the large product block and send it out.

[0047] The embodiments described in this specification are merely examples of implementations of the inventive concept. The scope of protection of this invention should not be considered as limited to the specific forms stated in the embodiments. The scope of protection of this invention also extends to equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.

Claims

1. A thick plate laser cutting workbench with automatic discharge function, characterized in that: The two transverse slide rods (101) and the two longitudinal slide rods (103) enclose a rectangular workbench; The lower part of the left and right ends of the transverse slide rod (101) is respectively provided with a longitudinally extending longitudinal guide rail, and the bottom of the longitudinal guide rail supports a support plate (102); the left and right ends of the transverse slide rod (101) are respectively connected with downward transverse slide rod sliding blocks (201), which are slidingly connected to the longitudinal guide rails, and the two transverse slide rods (101) can move closer to or farther away from each other along the longitudinal guide rails; The lower part of the front and rear ends of the longitudinal slide rod (103) is respectively provided with a transversely extending transverse guide rail, and the left and right ends of the transverse guide rail are respectively connected to the inner sides of the two longitudinal guide rails; the front and rear ends of the longitudinal slide rod (103) are respectively connected with longitudinal slide rod sliding blocks (202), which are slidingly connected to the transverse guide rails, and the two longitudinal slide rods (103) can move closer to or farther away from each other along the transverse guide rails; The height of the transverse slide rod (101) is higher than the height of the longitudinal slide rod (103), the bottom of the left and right ends of the transverse slide rod (101) is in contact with the top surface of the longitudinal slide rod (103); a plurality of inwardly rotatable column mounting grooves are arranged on the longitudinal slide rod (103) in the longitudinal direction, and an inwardly rotatable column (203) is hingedly connected to the inwardly rotatable column mounting groove through a column shaft; the inwardly rotatable column (203) is in the shape of an inverted L, and the top surface of the inwardly rotatable column (203) is flush with the top surface of the transverse slide rod (101); the column shaft is arranged in the longitudinal direction, and a reset torsional spring (304) is sleeved on the column shaft and clamped in the inwardly rotatable column mounting groove; The inwardly rotatable column (203) is symmetrically provided with triangular sliding blocks (301) on both sides in the longitudinal direction, and the triangular sliding blocks (301) are slidingly arranged in the longitudinal sliding grooves arranged on both sides of the inwardly rotatable column (203); the triangular sliding block (301) is a right-angled triangular plate, the long straight angle side of the triangular sliding block (301) is slidingly matched with the outer side groove wall of the longitudinal sliding groove, and the hypotenuse of the triangular sliding block (301) is inclined from the end away from the inwardly rotatable column (203) to the end close to the inwardly rotatable column (203); the short straight angle side of the triangular sliding block (301) is connected with a reset spring (302), and the other end of the reset spring (302) is connected with a spring fixed seat; The top of the outer side groove wall in the longitudinal sliding groove is longitudinally provided with a trigger sliding groove (402), and an inner rotating trigger (303) is slidably connected in the trigger sliding groove (402); the inner rotating trigger (303) comprises a dial plate and a dial shaft, the dial plate is sleeved on the dial shaft, the dial shaft is transversely arranged, and one end of the dial shaft is slidably connected in the trigger sliding groove (402); the dial plate is higher than the top surface of the longitudinal sliding groove, and the two sides of the dial plate in the transverse direction are respectively provided with a first rotation-stopping torsional spring (401a) and a second rotation-stopping torsional spring (401b); the two ends of the first rotation-stopping torsional spring (401a) and the second rotation-stopping torsional spring (401b) are respectively connected with the dial plate and the dial shaft, and the rotation directions of the first rotation-stopping torsional spring (401a) and the second rotation-stopping torsional spring (401b) are opposite; When the transverse sliding rod (101) moves longitudinally, the inner rotating trigger (303) in the trigger sliding groove (402) is driven to move, and the dial plate of the inner rotating trigger (303) drives the triangular sliding block (301) to move; under the action of the inclined edge of the triangular sliding block (301), the inner rotating column (203) rotates inward around the column shaft; after the transverse sliding rod (101) passes the inner rotating column (203), the triangular sliding block (301) is reset under the action of the reset spring (302), and the inner rotating column (203) is reset under the action of the reset torsional spring (304); The automatic discharging device comprises discharging guide rails (504), suction cup support guide rails (503), pneumatic telescopic rods (502), discharging support plates (501) and electromagnetic coils (505); the inner sides of the two support plates (102) are connected with longitudinally extending discharging guide rails (504), the rear ends of the discharging guide rails (504) extend out of the longitudinal guide rails, and the two discharging guide rails (504) are slidably connected with transversely extending suction cup support guide rails (503); the suction cup support guide rails (503) are slidably connected with the pneumatic telescopic rods (502), the output shafts of the pneumatic telescopic rods (502) vertically extend upward and are connected with the discharging support plates (501), and the top surfaces of the discharging support plates (501) are embedded with the electromagnetic coils (505).

2. The thick plate laser cutting worktable with automatic discharging function according to claim 1, characterized in that: The ends of the two longitudinal sliding rod sliding blocks (202) on the same longitudinal sliding rod (103) away from each other are provided with limiting plates, the heights of the limiting plates are higher than the height of the transverse sliding rod (101), so as to prevent the transverse sliding rod (101) from exceeding the stroke.

3. The thick plate laser cutting worktable with automatic discharging function according to claim 1, characterized in that: The discharging support plate (501) is square, polygonal or cross-shaped, and the upper surface of the discharging support plate (501) is coated with a non-slip material.

4. The thick plate laser cutting worktable with automatic discharging function according to claim 1, characterized in that: The electromagnetic coil (505) is connected with a direct-current power supply or an alternating-current power supply.

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