Laser cutting device and method for processing automobile parts

Abstract

The present invention relates to the technical field of metal plate cutting equipment. The present invention provides a laser cutting device and method for processing automotive parts, which includes a workbench having a plurality of rack supports extending laterally and used to support metal plates, with both end faces of the rack supports having slots; a cutting mechanism is mounted above the workbench, and the cutting mechanism is used to cut metal plates; there are two limit bar seats, both extending along the length of the workbench and slidingly arranged on the workbench, the two limit bar seats are respectively located on both sides of the rack support, the limit bar seat has a clamping portion on the side close to the rack support, and the clamping portion has a guide slope on the end close to the rack support. The above technical solution solves the technical problem in the prior art of damaging the top of the rack support or improperly installing the rack support when replacing the rack support, resulting in uneven metal plate support.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of metal plate cutting equipment, and in particular, to a laser cutting device and method for processing automobile parts. Background Art

[0002] In the automotive parts processing process, sheet-shaped, irregularly shaped parts are often cut and shaped using a laser cutting system. A laser cutting system utilizes the high energy density of a laser beam to cut materials. The laser beam is focused into a high-energy-density beam through an optical system. A laser cutting system primarily consists of a cutting mechanism and a worktable for placing the metal sheet. To minimize damage to the worktable caused by the high-energy-density beam after penetrating the sheet, the worktable utilizes a rack-like support structure, replacing surface contact with multiple point-contact supports. This minimizes damage to the sheet support caused by the high-energy-density beam. However, after the sheet is cut, molten residue adheres to the rack support. Long-term accumulation can affect the rack's flatness, preventing the sheet from lying flat on the worktable. During the cutting process, the cut section can separate from the main sheet. Excessive molten residue adheres to the rack support, causing the cut section to rise above the main sheet. This can easily cause the cutting head to collide with adjacent workpieces or when the cutting mechanism moves past the cut section. To increase production efficiency, some laser cutting systems feature two worktables, which alternate between cutting and loading positions.

[0003] In the prior art, in order to solve the problem of melted metal plate residue adhering to the rack support, some have added scraping mechanisms to regularly scrape off the melted metal plate residue on the rack support, while others have added blowing mechanisms during the intervals of the rack support to blow the melted metal plate residue off the rack support. However, no matter which of the above two methods is used, the rack support must be regularly replaced. Currently, the rack support is completely fixed by interference fit with the installation seam on the workbench body, and the staff needs to use a hammer to hit the rack support to the bottom of the installation seam. Not only does the hammer damage the tip of the rack support, but it may also cause the rack support to fail to contact the bottom of the installation seam due to negligence. Both situations will cause the rack support to fail to keep the metal plate on the same plane, thereby affecting the cutting quality and easily causing collisions with the cutting head. Summary of the Invention

[0004] To overcome the above-mentioned defects, the present invention provides a laser cutting device and method for automobile parts processing, which solves the technical problems in the prior art of damaging the top of the rack support or improper installation when replacing the rack support, resulting in uneven metal plate support.

[0005] According to one aspect, at least one embodiment of the present invention provides a laser cutting device for processing automotive parts, comprising:

[0006] A workbench having a plurality of rack supports extending laterally and used to support metal plates, and slots are provided on both end surfaces of the rack supports;

[0007] A cutting mechanism, the cutting mechanism being mounted above the workbench and being used for cutting metal plates;

[0008] There are two limit bar seats, both extending along the length direction of the workbench and slidingly arranged on the workbench. The two limit bar seats are respectively located on both sides of the rack support. The limit bar seat has a clamping portion on the side close to the rack support. The two limit bar seats can slide and approach the rack support so that the clamping portion is clamped in the clamping groove, and several rack supports are supported at the same height under the metal plate.

[0009] For example, at least one embodiment of the present invention provides a laser cutting device for automobile parts processing, further comprising:

[0010] There are at least two polished rods, both of which are arranged on the workbench along the transverse direction of the workbench. Each of the polished rods passes through the two limit bar seats, and the two polished rods are respectively arranged close to the two ends of the limit bar seats.

[0011] For example, in a laser cutting device for processing automotive parts provided in at least one embodiment of the present invention, the workbench also has two groups of mounting grooves respectively arranged near both sides of the workbench, each group of the mounting grooves includes a plurality of the mounting grooves arranged at intervals along the length direction of the workbench, and the ends of the rack supports are located one-to-one in the mounting grooves.

[0012] For example, in at least one embodiment of the present invention, a laser cutting device for processing automobile parts further includes a driving assembly for driving the limit bar seat to slide laterally, the driving assembly including:

[0013] A screw is rotatably arranged on the workbench, the screw being arranged to pass through the two limit bar seats in the transverse direction of the workbench, and the screw having two thread segments with opposite rotation directions;

[0014] There are two nuts, which are detachably arranged on the two limit bar seats in a one-to-one correspondence. The two nuts are respectively threadedly matched with the two threaded segments in a one-to-one correspondence. The nuts can drive the limit bar seats to slide horizontally under the rotation of the screw.

[0015] For example, in a laser cutting device for automobile parts processing provided by at least one embodiment of the present invention, the workbench includes:

[0016] A frame, the limiting bar seat is slidably arranged on the frame, the inner side of the frame has a receiving groove for receiving the limiting bar seat, and the clamping portion can extend through the side wall of the receiving groove toward the central axis of the frame;

[0017] The support frame is arranged on the inner circle of the frame, and the mounting groove is arranged on the support frame.

[0018] For example, in a laser cutting device for processing automobile parts provided by at least one embodiment of the present invention, the nut has a second through hole extending axially therethrough and located on one side of the screw, and further includes:

[0019] a rotating ring rotatably disposed on the limiting bar seat, the screw rod passing through the rotating ring, and the rotating ring having a threaded hole adapted to the second through hole;

[0020] a bolt, configured to pass through the second through hole and be threadedly engaged with the threaded hole;

[0021] The rotating ring is configured so that it can rotate until the threaded hole and the second through hole are coaxial, so that the bolt can pass through the second through hole and then threadably engage with the threaded hole. After the bolt passes through the threaded hole, it abuts against the side wall of the limit bar seat to limit the rotation of the rotating ring.

[0022] For example, in a laser cutting device for automobile parts processing provided by at least one embodiment of the present invention, the driving assembly further includes:

[0023] A worm wheel is fixedly sleeved on the screw, and the worm wheel is located between the two threaded segments;

[0024] A worm is rotatably arranged on the frame, the worm main shaft is arranged along the length direction of the workbench, the worm is meshed with the worm wheel for transmission, and the worm is used to drive the worm wheel to rotate.

[0025] For example, at least one embodiment of the present invention provides a laser cutting device for automobile parts processing, further comprising:

[0026] A protective cover plate, with both ends respectively arranged on two adjacent rack supports, the protective cover plate is located above the worm gear, and is used to prevent slag on the metal plate on the rack support from falling onto the worm gear.

[0027] For example, in a laser cutting device for processing automobile parts provided by at least one embodiment of the present invention, the worm shaft is parallel to the length direction of the workbench, and further includes:

[0028] A ratchet wrench is rotatably arranged on the end surface of the workbench, the ratchet wrench has a direction switching button, the ratchet wrench has a sleeve interface arranged at the end of the worm, and the ratchet wrench can drive the worm to rotate;

[0029] Two laterally spaced limit bumps are provided on the end surface of the workbench, and the two limit bumps are respectively located on both sides of the ratchet wrench. The two limit bumps are both located on the rotation path of the ratchet wrench. The limit bumps are used to support the ratchet wrench so that the ratchet wrench can stay in an upward tilted state.

[0030] For example, at least one embodiment of the present invention provides a laser cutting device for automobile parts processing, further comprising:

[0031] a sliding member, horizontally slidably arranged on the cutting mechanism;

[0032] A pressing block is lifted and lowered on the sliding member, and the pressing block can be lowered to abut against the top of the metal plate supported by the rack.

[0033] A laser cutting method for processing automobile parts, using the cutting device for processing automobile parts to cut metal plates, comprising:

[0034] S10, the workbench carrying the metal plate slides into the cutting position, and the cutting mechanism cuts the metal plate on the workbench;

[0035] S20, when a workpiece cut from the metal plate is warped due to stress of the metal plate itself or uneven support, the cutting mechanism stops cutting;

[0036] S30, the cutting mechanism moves to a position adjacent to the warped workpiece, and the pressing block descends and presses the metal plate, so that the operator can remove the warped workpiece and prevent the metal plate on the workbench from shifting.

[0037] The beneficial effects of the embodiments of the present invention are:

[0038] In the present invention, the coupling between the clamping portion and the slot, as well as the guiding and supporting functions of the polished rod and the limit bar seat, enable the clamping portion to slide into or out of the slot at the same height. During the process of the clamping portion entering the slot, the guiding bevel applies a downward force to the slot, thereby causing the bottom of the rack support to abut against the bottom of the installation seam, ensuring the consistency of the height of the top of the rack support, making the metal plate support smoother, and improving cutting quality. This avoids the problem of the cutting head bumping caused by knocking on the rack support installation method, ensures the smoothness of the metal plate support, thereby reducing the damage rate of the cutting head, extending the service life of the cutting head, and reducing equipment downtime.

[0039] By making the length of the clamping portion the same as the length of the rack support arrays, the clamping portion can adjust the heights of the rack supports at the same time, thereby improving installation efficiency compared to a method of knocking them one by one. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments of the present invention. Obviously, the drawings described below are merely exemplary embodiments of the present invention. Those skilled in the art can, without inventive effort, derive other drawings based on the contents of the exemplary embodiments of the present invention and these drawings.

[0041] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 Schematic diagram of the cross-sectional structure of the workbench;

[0043] Figure 3 for Figure 2 A in the middle is an enlarged structural diagram;

[0044] Figure 4 for Figure 2 The enlarged structural diagram at B in the middle;

[0045] Figure 5 It is a schematic diagram of the explosion structure of the nut and the rotating ring;

[0046] Figure 6 This is a top view of the workbench;

[0047] Figure 7 for Figure 6 The enlarged structural diagram at C in the middle;

[0048] Figure 8 This is a schematic diagram of the overall external structure of the workbench;

[0049] Figure 9 for Figure 8 The enlarged structural diagram at D in the middle;

[0050] Figure 10 This is a schematic diagram of the overall structure of the present invention from another angle;

[0051] Figure 11 for Figure 10 The enlarged structural diagram at E in the middle;

[0052] Figure 12 for Figure 6 The enlarged structural diagram at F in the middle;

[0053] In the figure: 100, cutting mechanism,

[0054] 200, workbench, 210, rack support, 211, slot, 220, frame, 221, receiving slot, 222, limiting protrusion, 230, support frame, 231, mounting slot,

[0055] 310, clamping part, 320, limiting bar seat, 330, rotating ring, 331, threaded hole,

[0056] 400, bare pole,

[0057] 500, screw,

[0058] 600, nut, 610, second through hole,

[0059] 710, worm gear, 720, worm, 730, ratchet wrench,

[0060] 800, protective cover,

[0061] 910, sliding part, 920, pressing block. DETAILED DESCRIPTION

[0062] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention.

[0063] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0064] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0065] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0066] In the description of this embodiment, the terms "up", "down", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0067] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0068] like Figures 1 to 12 As shown, it shows a laser cutting device for automobile parts processing in one embodiment of the present invention, including a cutting mechanism 100 and a workbench 200 for supporting a metal plate, the workbench 200 has a plurality of rack supports 210 spaced apart in the longitudinal direction, and a card slot 211 is provided at both ends of the rack support 210 along the horizontal direction of the workbench 200, and also includes a card connection portion 310, a light rod 400, and a limit bar seat 320.

[0069] The clamping portion 310 is in the shape of a long strip as a whole, and its length is the same as the array length of the rack support 210 along the length direction. Several rack supports 210 are located between two clamping portions 310, and the two clamping portions 310 can slide closer to or away from each other at the same height of the workbench 200. When the cam 310 is in the unlocking state, the cam 310 is locked and the locking cam 311 is unlocked, so the cam 310 is locked.

[0070] There are at least two polished rods 400, which are distributed along the length of the workbench 200. Both ends of the polished rods 400 are fixed to the workbench 200 by nuts 600 or welding to ensure that they are firmly installed. The main shaft is arranged horizontally along the workbench 200.

[0071] The limit bar holder 320 is a rectangular flat plate. At least two limit bar holders 320 are welded to each clamping portion 310. These two or more limit bar holders 320 provide stable support for the clamping portion 310 and distribute the forces acting on the polished rod 400, preventing stress concentration and bending of the polished rod 400. Each limit bar holder 320 is provided with at least two first through-holes 321. The diameter of these first through-holes 321 is slightly larger than the diameter of the polished rod 400, typically by 0.1-0.2 mm, to ensure that the limit bar holder 320 can slide freely on the polished rod 400. The limit bar holder 320 is connected to the clamping portion 310 by bolts or welding, ensuring a secure connection. On the one hand, the limiting bar seat 320 is connected to the clamping portion 310, transmitting the movement of the clamping portion 310 to the polished rod 400, so that the clamping portion 310 can slide along the direction of the polished rod 400; on the other hand, the limiting bar seat 320 increases the stability of the clamping portion 310, so that the clamping portion 310 is always at the same height, further ensuring the flatness and stability of the installation of the rack support 210.

[0072] Working principle: When the rack support 210 needs to be replaced, the clamping parts 310 are first slid toward each other to make room for the installation of the new rack support 210. The new rack support 210 is placed into the installation gap on the workbench 200, and the clamping slot 211 also enters the installation gap. The installation gap and the rack support 210 have an interference fit. At this time, there is no need to use a hammer to hit the top of the rack support 210 so that its bottom abuts the bottom of the installation gap, so that the top of the rack support 210 is at the same height. The operator only needs to slide the clamping part 310. As the clamping part 310 approaches the clamping slot 211, the guiding slope of the clamping part 310 gradually applies downward force to the rack support 210 until the bottom of the rack support 210 abuts the bottom of the installation gap. During the sliding process of the clamping part 310, the limit bar seat 320 and the light rod 400 play a limiting role, allowing the clamping part 310 to maintain the same height and slide. The rack support 210 is cut by a laser cutting device, and the position accuracy of the slot 211 can be maintained within 0.1 mm.

[0073] Through the cooperation between the clamping portion 310 and the clamping slot 211, and the guiding and supporting function of the polished rod 400 and the limit bar seat 320, the clamping portion 310 can slide into or out of the clamping slot 211 at the same height. During the process of the clamping portion 310 entering the clamping slot 211, the guiding bevel applies a downward force to the clamping slot 211, so that the bottom of the rack support 210 abuts against the bottom of the installation gap, ensuring the height of the top of the rack support 210 is consistent, making the metal plate support more flat and improving the cutting quality. The problem of the cutting head bumping caused by knocking the rack support 210 is avoided, and the flatness of the metal plate support is ensured, thereby reducing the damage rate of the cutting head, extending the service life of the cutting head, and reducing equipment downtime.

[0074] By making the length of the clamping portion 310 the same as the array length of the rack supports 210 , the clamping portion 310 can adjust the heights of the rack supports 210 at the same time, thereby improving installation efficiency compared to the method of knocking them one by one.

[0075] In some examples, the workbench 200 further comprises a plurality of mounting slots 231, wherein a plurality of rack supports 210 are positioned in a one-to-one correspondence within the mounting slots 231. The clamping portion 310 is used to press the bottom of the rack support 210 within the mounting slots 231 to a position contacting the bottom of the mounting slots 231. The mounting slots 231 function similarly to mounting seams. The mounting slots 231, in the form of plates, position the rack supports 210 along the length of the workbench 200. The limiting bar seat 320 and the clamping portion 310 are slidably mounted on a side of the mounting slot 231 away from the center of the workbench 200, so that the clamping portion 310 can cooperate with the clamping slot 211 that enters the mounting slot 231.

[0076] In some examples, a screw rod 500 and a nut 600 are further included. Both ends of the screw rod 500 are rotatably arranged on the workbench 200 via bearings. The screw rod 500 passes through a plurality of limit bar seats 320, and the screw rod 500 does not contact the limit bar seats 320. The screw rod 500 has two threaded segments with opposite rotation directions, the two threaded segments have the same length, and the two threaded segments are symmetrical along the midpoint of the screw rod 500. There are two nuts 600, and the two nuts 600 are respectively threadedly engaged with the two threaded segments. By rotating the screw rod 500, the two nuts 600 move closer to or away from each other. The two nuts 600 are detachably arranged on the limit bar seats 320 of the two clamping parts 310 in a one-to-one correspondence. The nuts 600 drive the limit bar seats 320 to slide by the rotation of the screw rod 500.

[0077] Working principle: The nut 600 is fixed on the limiting bar seat 320 in a detachable manner, so that the nut 600 can drive the limiting bar seat 320 to slide along the polished rod 400.

[0078] During installation, the operator screws the nut 600 into the screw rod 500 in advance, then passes both ends of the screw rod 500 through the limit bar seats 320 used on the two pressure rods, and is rotated and set on the workbench 200 through the bearings, and then rotates the nut 600 to make the nut 600 abut against the limit bar seat 320, and then uses fasteners to fix the nut 600 on the limit bar seat 320.

[0079] The limit bar seat 320 is threadedly connected to the screw rod 500 through a detachable nut 600, which can reduce the difficulty of installation and enable the limit bar seat 320 to adjust its position by sliding during installation. After the position adjustment is completed, the nut 600 is moved to a position abutting the limit bar seat 320, and the installation can be completed using fasteners.

[0080] In some examples, the workbench 200 includes a frame 220 and a support frame 230. The frame 220 provides stable support for the entire workbench 200, bearing the weight of the clamping portion 310, the limiting bar seat 320, the support frame 230, and the metal sheet to be cut. The receiving groove provides installation space for the limiting bar seat 320, facilitating the operator's installation of the clamping portion 310. The limiting bar seat 320 and the clamping portion 310 located within the receiving groove protect the limiting bar seat 320 and the clamping portion 310 from being crushed by the metal sheet.

[0081] The primary function of the support frame 230 is to provide a mounting base for the rack support 210. The rack support 210 is positioned and secured to the support frame 230 via mounting slots 231, ensuring stability during operation. The support frame 230 is secured to the frame 220 by welding. The mounting slots 231 communicate with the receiving slots, facilitating engagement of the engaging portion 310 with the engaging slots 211.

[0082] In some examples, the nut 600 has a second through hole 610 and also includes a rotating ring 330. The rotating ring 330 is generally annular, with an inner diameter slightly larger than the diameter of the screw 500, generally 0.2-0.5 mm larger, to ensure that the screw 500 can pass through smoothly and the rotating ring 330 can flexibly rotate around the screw 500. The rotating ring 330 is provided with a threaded hole 331 that matches the second through hole 610 of the nut 600, ensuring that the bolt can accurately pass through the second through hole 610 and threadably engage with the threaded hole 331. The rotating ring 330 is rotatably mounted on the limit bar seat 320 via a bearing or a sleeve. The inner diameter of the bearing or sleeve matches the outer diameter of the rotating ring 330, and the outer diameter matches the mounting hole on the limit bar seat 320, ensuring that the rotating ring 330 is securely mounted and rotates smoothly.

[0083] The rotating ring 330 improves the convenience of installing the nut 600 and the limit bar seat 320. After the nut 600 is rotated to a position that fits the rotating ring 330, the rotating ring 330 is rotated to make the threaded hole 331 of the rotating ring 330 coaxial with the second through hole 610, and then the bolt that is threadedly matched with the threaded hole 331 passes through the second through hole 610 and the threaded hole 331 in turn, and abuts against the side of the support. The friction between the bolt and the limit bar seat 320 prevents the rotating ring 330 from rotating, so that the nut 600 can drive the limit bar seat 320 to slide along the light rod 400.

[0084] In some examples, a worm gear 710 is further included. The worm gear 710 is disposed on the screw 500 and is located between two threaded segments. A worm 720 is rotatably disposed on the frame 220 and is meshed with the worm gear 710 for transmission.

[0085] The operator rotates the worm gear 710 by rotating the worm gear 720, which in turn drives the screw 500 to rotate, thereby enabling the engaging portion 310 to slide toward or away from each other. The worm gear 710 and worm gear 720 can achieve a force-multiplying effect through different transmission ratios, thereby reducing the force required by the operator to rotate the worm gear 720 to drive the engaging portion 310 to slide. Furthermore, the one-way transmission characteristics of the worm gear 710 and worm gear 720 prevent the engaging portion 310 from sliding due to the workbench 200.

[0086] In some examples, the main axis of the worm 720 is parallel to the length of the workbench 200. A ratchet wrench 730 is also included, and the ratchet wrench can be switched in direction using a switch button. Since the ratchet wrench 730 with switchable direction is known in the art, it will not be described in detail here. The ratchet wrench 730 is rotatably mounted on the workbench 200 by welding it to the worm 720 via a sleeve. Rotating the ratchet wrench 730 drives the worm 720 to rotate.

[0087] The workbench 200 has two limiting protrusions 222, which are respectively located on both sides of the ratchet wrench 730. The two limiting protrusions 222 are both located on the rotation path of the ratchet wrench 730. The limiting protrusions 222 are used to support the ratchet wrench 730 so that the ratchet wrench 730 can stay in an upward tilted state.

[0088] The working principle is that rotating the ratchet wrench 730 rotates the worm 720, thereby driving the clamping parts 310 toward each other. When the ratchet wrench 730 rotates to abut against a limiting protrusion 222, the ratchet wrench 730 can be reversed. Due to the characteristics of the ratchet wrench 730, the worm 720 will not be driven to rotate when the ratchet wrench 730 is reversed. Then, rotating the ratchet wrench 730 forward causes the worm 720 to drive the clamping parts 310 to slide toward each other. When the clamping parts 310 need to slide away from each other, the worm 720 can be driven away by turning the button on the ratchet wrench 730.

[0089] The limiting protrusion 222 can keep the ratchet wrench 730 in an upward tilted position at all times, and can prevent the ratchet wrench 730 from interfering with other workbenches 200 during the process of the dual workbenches 200 alternately entering the cutting position and the loading and unloading position.

[0090] In some examples, a protective cover plate 800 is also included, with both ends of the protective cover plate 800 respectively arranged on two adjacent rack supports 210. The protective cover plate 800 is located above the worm gear 710. The protective cover plate 800 is used to prevent slag on the metal plate on the rack support 210 from falling onto the worm gear 710, so as to improve the service life of the worm gear 710.

[0091] In some examples, a sliding member 910 is further included, which is slidably disposed on the cutting mechanism 100 ; a pressure block 920 is lifted and lowered on the sliding member 910 , and the clamping portion 310 can descend and abut against the top of the metal plate on the rack support 210 .

[0092] The sliding member 910 is driven by a motor to move on the cutting mechanism 100, and the cutting mechanism 100 can move laterally and longitudinally relative to the workbench 200. The pressing block 920 can be raised and lowered relative to the sliding member 910 through a cylinder. When the clamping part 310 descends, it can abut against the top of the metal plate on the rack support 210, thereby pressing the top of the metal plate.

[0093] When a part of the workpiece cut off from the metal plate is tilted due to the internal stress of the metal plate or the different conditions of the rack support 210, which may affect the cutting of the adjacent workpiece, the operator suspends cutting, lifts the cutting head, moves the cutting mechanism 100 to the appropriate position, and then drives the cylinder to make the pressure block 920 fall and press the metal plate, so that the operator can manually remove the tilted workpiece. By pressing the metal plate with the pressure block 920, the metal plate can be prevented from moving when the operator removes the tilted workpiece. If part of the workpiece has been cut off from the metal plate, it will affect the re-patrol positioning of the cutting mechanism 100. Once the metal plate moves, it will affect the accuracy of the subsequent workpiece cutting.

[0094] A laser cutting method for processing automobile parts, using a cutting device for processing automobile parts to cut metal plates, comprising:

[0095] S10, the workbench 200 carrying the metal plate slides into the cutting position, and the cutting mechanism 100 cuts the metal plate on the workbench 200;

[0096] S20, when a workpiece cut from the metal plate is warped due to stress of the metal plate itself or uneven support, the cutting mechanism 100 stops cutting;

[0097] S30, the cutting mechanism 100 moves to the appropriate position, and the pressure block 920 descends to press the metal plate, so that the operator can remove the lifted workpiece. Due to the pressing effect of the clamping part 920 on the metal plate, the metal plate on the workbench 200 can be prevented from shifting, and the situation where the lifted workpiece hits the cutting head is avoided while ensuring the subsequent cutting accuracy.

[0098] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A laser cutting device for processing automobile parts, comprising: A workbench (200), the workbench (200) having a plurality of rack supports (210) extending laterally and used to support metal plates, and both end surfaces of the rack supports (210) having slots (211); A cutting mechanism (100), the cutting mechanism (100) being mounted above the workbench (200), and the cutting mechanism (100) being used for cutting metal plates; There are two limit bar seats (320), both of which extend along the length direction of the workbench (200) and are laterally slidably arranged on the workbench (200). The two limit bar seats (320) are respectively located on both sides of the rack support (210). The side of the limit bar seat (320) close to the rack support (210) has a clamping portion (310), and the end of the clamping portion (310) close to the rack support (210) has a guiding inclined surface. The two limit bar seats (320) can slide and approach the rack support (210) so that the clamping portion (310) is clamped in the clamping groove (211), and a plurality of the rack supports (210) are supported at the same height below the metal plate.

2. The laser cutting device for automobile parts processing according to claim 1, characterized in that: Also includes: There are at least two polished rods (400), both of which are arranged on the workbench (200) along the transverse direction of the workbench (200), each of the polished rods (400) is arranged to pass through the two limit bar seats (320), and the two polished rods are respectively arranged close to the two ends of the limit bar seats (320).

3. The laser cutting device for automobile parts processing according to claim 1, characterized in that: The workbench (200) further comprises two groups of mounting grooves (231) respectively arranged near two sides of the workbench (200), wherein the mounting grooves (231) of the same group are arranged at intervals along the length direction of the workbench (200), and the ends of the rack supports (210) are located in the mounting grooves (231) in a one-to-one correspondence.

4. The laser cutting device for automobile parts processing according to claim 3, characterized in that: It also includes a driving assembly for driving the limiting bar seat (320) to slide laterally, and the driving assembly includes: a screw rod (500) rotatably disposed on the workbench (200), the screw rod (500) being disposed in a transverse direction of the workbench (200) and penetrating the two limiting bar seats (320), the screw rod (500) having two thread segments with opposite rotation directions; There are two nuts (600), and the two nuts (600) are detachably arranged on the two limit bar seats (320) in a one-to-one correspondence. The two nuts (600) are respectively threadedly engaged with the two threaded segments in a one-to-one correspondence. The nuts (600) can drive the limit bar seats (320) to slide horizontally under the rotation of the screw rod (500).

5. The laser cutting device for automobile parts processing according to claim 4, characterized in that: The workbench (200) comprises: A frame (220), the limiting bar seat (320) is slidably arranged on the frame (220), the frame (220) has an accommodating groove (221) on the inner side thereof for accommodating the limiting bar seat (320), and the clamping portion (310) is capable of extending through the side wall of the accommodating groove (221) toward the central axis of the frame (220); The support frame (230) is arranged on the inner circle of the frame (220), and the mounting groove (231) is arranged on the support frame (230).

6. The laser cutting device for automobile parts processing according to claim 5, characterized in that: The nut (600) has a second through hole (610) that runs axially through the nut and is located on one side of the screw rod (500), and further includes: a rotating ring (330) rotatably disposed on the limiting bar seat (320), the screw (500) passing through the rotating ring (330), and the rotating ring (330) having a threaded hole (331) adapted to the second through hole (610); a bolt, used to penetrate the second through hole (610) and threadably engage with the threaded hole (331); The rotating ring (330) is configured such that the rotating ring (330) can be rotated until the threaded hole (331) and the second through hole (610) are coaxial, so that the bolt can pass through the second through hole (610) and then be threadedly engaged with the threaded hole (331), and the bolt passes through the threaded hole (331) and then abuts against the side wall of the limiting bar seat (320) to limit the rotation of the rotating ring (330).

7. The laser cutting device for automobile parts processing according to claim 5, characterized in that: The drive assembly further includes: a worm wheel (710) fixedly sleeved on the screw rod (500), the worm wheel (710) being located between the two threaded segments; A worm (720) is rotatably arranged on the frame (220), a main shaft of the worm (720) is arranged along the length direction of the workbench (200), the worm (720) is meshed with the worm wheel (710) for transmission, and the worm (720) is used to drive the worm wheel (710) to rotate.

8. The laser cutting device for automobile parts processing according to claim 7, characterized in that: The main axis of the worm (720) is parallel to the length direction of the workbench (200), and further comprises: a ratchet wrench (730) rotatably arranged on the end surface of the workbench (200), the ratchet wrench (730) having a direction switching button, the ratchet wrench (730) having a sleeve interface arranged at the end of the worm (720), and the ratchet wrench (730) being capable of driving the worm (720) to rotate; Two laterally spaced limiting protrusions (222) are provided on the end surface of the workbench (200), the two limiting protrusions (222) being located on both sides of the ratchet wrench (730), and both the limiting protrusions (222) being located on the rotation path of the ratchet wrench (730). The limiting protrusions (222) are used to support the ratchet wrench (730) so that the ratchet wrench (730) can stay in an upwardly tilted state.

9. The laser cutting device for automobile parts processing according to claim 1, characterized in that: Also includes: a sliding member (910) horizontally slidably disposed on the cutting mechanism (100); A pressing block (920) is arranged on the sliding member (910) for lifting, and the pressing block (920) can be lowered to abut against the top of the metal plate on the rack support (210).

10. A laser cutting method for automobile parts processing, using the laser cutting device for automobile parts processing according to claim 9 to cut metal plates, characterized in that: include: S10, the workbench (200) carries the metal plate and slides into the cutting position, and the cutting mechanism (100) cuts the metal plate on the workbench (200); S20, when a workpiece cut from a metal plate warps due to stress of the metal plate itself or uneven support, the cutting mechanism (100) stops cutting; S30, the cutting mechanism (100) moves to a position adjacent to the warped workpiece, and the pressing block (920) descends and presses the metal plate, so that an operator can remove the warped workpiece and prevent the metal plate on the workbench (200) from shifting.

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