Three-dimensional laser cutting machine feeding and discharging system with visual detection and self-cleaning functions

Abstract

The three-dimensional laser cutting machine feeding and discharging system with the visual inspection and self-cleaning functions comprises a lathe bed and a rail sliding table conveying mechanism, the rail sliding table conveying mechanism comprises a sliding table rail and two sliding tables, and positioning tools capable of moving under driving of a tool translation assembly are installed on the sliding tables. By the adoption of the structure, the two sliding tables can independently carry out feeding and discharging procedures on two sets of small workpieces and can also carry out feeding and discharging on large workpieces together; moreover, when the visual detection assembly can carry out online visual detection on the workpieces on the positioning tool, the positioning tool can synchronously drive the waste removing mechanism to remove waste on the tool base into the waste collecting box, and two procedures are completed in one step. And moreover, the sliding table module can provide two degrees of freedom capable of being adjusted on line in the horizontal direction, and a plurality of degrees of freedom are realized on the cross beam module, so that a redundant machining mode with super multiple degrees of freedom can be realized.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting technology, specifically to a loading and unloading system for a three-dimensional laser cutting machine with visual inspection and self-cleaning functions. Background Technology

[0002] To improve the efficiency of laser cutting, please refer to Chinese patent applications with publication numbers CN116275624A and CN219310399U, where the applicant has designed a series of dual-channel 3D laser cutting machines with dual laser cutting heads. However, existing dual-channel 3D laser cutting machines are usually only equipped with one slide, meaning they are all single-station 3D laser cutting systems. The two laser cutting heads can only work together to cut one workpiece, resulting in poor flexibility.

[0003] Please refer to the Chinese utility model patent with publication number CN219310399U. Existing 3D laser cutting machines typically use a single-degree-of-freedom sliding loading and unloading or rotating loading and unloading method for the slide module. This cannot be combined with the crossbeam module to achieve a redundant processing mode with multiple degrees of freedom, which limits the efficiency, flexibility and processing accuracy of laser cutting, especially making it difficult to perform cutting processing on complex surfaces.

[0004] Furthermore, the waste generated by existing 3D laser cutting machines (3D laser cutting machines are mainly used for drilling and trimming; therefore, the waste from drilling is usually circular metal sheets, and the waste from trimming is usually strip-shaped metal sheets) is mostly cleaned manually by stopping the machine and cleaning the slide, which is very inefficient. Therefore, some 3D laser cutting machines have added a self-cleaning mechanism for the slide, which has improved production efficiency to some extent.

[0005] Currently, after laser cutting, the processing quality of most workpieces is inspected manually using gauges after they come off the production line, which is inefficient. Therefore, please refer to Chinese Utility Model Patent Publication No. CN219785648U, where some devices incorporate a vision camera for online workpiece inspection, improving inspection efficiency and accuracy.

[0006] For existing 3D laser cutting machines, self-cleaning of the slide and online visual inspection of the workpiece are performed in two separate processes, resulting in consistently low overall efficiency in workpiece processing. Utility Model Content

[0007] In view of this, the present invention provides a loading and unloading system for a three-dimensional laser cutting machine with visual inspection and self-cleaning functions.

[0008] The technical solution is as follows:

[0009] The first aspect of this application relates to a loading and unloading system for a three-dimensional laser cutting machine with visual inspection and self-cleaning functions, including a bed and a track slide conveying mechanism. The bed has slide inlets and outlets at both ends along its length. The track slide conveying mechanism includes a slide track that passes through both slide inlets and outlets simultaneously and two slides that can slide along the slide track under the drive of a slide drive assembly. A side inlet and outlet are provided on one side of the bed along its width. Two visual inspection components are installed on the bed, both located at the top of the side inlet and outlet. Two waste collection boxes are provided at the bottom of the side inlet and outlet, each located directly below the corresponding visual inspection component. Positioning fixtures that can move along the width of the bed under the drive of a fixture translation assembly are installed on each slide.

[0010] Driven by their respective slide drive components, the two slides can independently enter and exit from adjacent slide inlets and outlets, or simultaneously enter and exit from either slide inlet and outlet. Furthermore, when either slide is located next to a side inlet or outlet, the positioning fixture on that slide can be moved to directly below the corresponding vision inspection component by the fixture translation component. The vision inspection component then performs online vision inspection on the workpiece on the positioning fixture. Simultaneously, the positioning fixture removes waste from the upper surface of the fixture base on the fixture translation component into the corresponding waste collection box through the waste removal mechanism installed on it.

[0011] The above-mentioned 3D laser cutting machine loading and unloading system, featuring visual inspection and self-cleaning functions, allows two slides to independently load and unload two sets of small workpieces (which can be the same or different workpieces) or work together to load and unload large workpieces. Furthermore, a side inlet / outlet is added to one side of the machine bed's width. Simultaneously, the positioning fixture on the slide can move along the width of the machine bed under the action of the fixture translation component. This allows the visual inspection component to perform online visual inspection of the workpiece on the positioning fixture when the slide is positioned next to the side inlet / outlet. At the same time, the positioning... The tooling simultaneously drives the waste removal mechanism to remove waste from the tooling base into the waste collection box, completing two processes in one step. This not only significantly improves processing efficiency but also features a clever mechanical structure design and a high degree of integration. Furthermore, the slide module provides two online adjustable degrees of freedom in the horizontal direction, which, combined with the multiple degrees of freedom achieved on the crossbeam module, enables redundant processing modes with multiple degrees of freedom. This allows for more efficient and flexible laser cutting, making it suitable for cutting more complex surfaces and achieving higher processing accuracy.

[0012] In some embodiments, the bed includes five uprights and a top frame mounted on top of the five uprights. The top frame is a rectangular structure formed by two opposing main beams and two opposing side beams. Four uprights are supported at the four corners of the top frame, and the other upright is supported in the middle of one of the main beams. This results in a sliding table inlet / outlet below each of the two side beams and a side inlet / outlet below the main beam supported on the two uprights.

[0013] In some embodiments, each column includes a column body extending vertically and a column top plate and a column bottom plate fixedly installed on the top and bottom of the column body, respectively. A plurality of column reinforcing plates extending vertically are installed around the column body. The top of each column reinforcing plate is fixedly connected to the corresponding column top plate, and the bottom of each column reinforcing plate is fixedly connected to the corresponding column bottom plate. Top frame reinforcing triangular ribs are installed at the boundaries of the top frame, and top frame reinforcing triangular plates are provided at the connection between the top frame and each column.

[0014] In some embodiments, the vision inspection assembly includes a camera base fixedly mounted on the main beam, a sixth linear guide rail and a sixth rack both fixedly mounted on the camera base along the length of the main beam, a camera mounting base mounted on a slider of the sixth linear guide rail, and a sixth motor and a vision camera both fixedly mounted on the camera mounting base. The lens of the vision camera faces downward, and a sixth drive gear that meshes with the sixth rack is synchronously mounted on the motor shaft of the sixth motor.

[0015] In some embodiments, the camera base includes a base body fixedly connected to the main beam, a vertical mounting plate extending downward from the outer edge of the base body away from the slide rail, and a horizontal mounting plate extending horizontally away from the lower edge of the vertical mounting plate in a direction away from the slide rail. The sixth rack is fixedly mounted on the side of the vertical mounting plate near the slide rail. A light strip and the sixth linear guide are mounted on the bottom surface of the horizontal mounting plate. The light strip extends along the length of the main beam and is located on the side of the sixth linear guide away from the sixth rack. A wire harness guide limiting hole is also provided on the horizontal mounting plate, which is located between the light strip and the sixth linear guide. Multiple reinforcing thin plates are connected between the vertical mounting plate and the horizontal mounting plate.

[0016] In some embodiments, the tooling base includes a receiving plate and two guide rail mounting brackets fixedly mounted on corresponding slides. The two guide rail mounting brackets are mounted opposite each other on both sides of the receiving plate along the length of the slide track. The tooling translation assembly includes a fourth linear guide rail mounted on one of the guide rail mounting brackets and a fourth linear guide rail and a fourth rack mounted on the other guide rail mounting bracket. The fourth rack and the fourth linear guide rail both extend along the width of the slide track. The positioning tooling includes an active slide and a driven slide on both sides of the receiving plate. The active slide and the driven slide are respectively fixedly mounted on the sliders of the corresponding fourth linear guide rails. A fourth motor is mounted on the active slide. A fourth drive gear that meshes with the fourth rack is synchronously mounted on the motor shaft of the fourth motor. A waste removal mechanism for removing waste material located on the upper surface of the receiving plate into the corresponding waste collection box is mounted on both the active slide and the driven slide.

[0017] In some embodiments, the upper surface of the receiving plate is recessed to form two receiving grooves located below the corresponding waste removal mechanism. The waste removal mechanism includes a connecting component installed on the corresponding active slide or driven slide and a removal component for removing waste from the corresponding receiving groove and transferring it to the corresponding waste collection box.

[0018] The bottom of each receiving groove is recessed to form multiple parallel guide slots that run through the receiving plate along the width of the slide rail. Each rejection assembly includes a push-pull shaft extending along the length of the slide rail, rejection push blocks slidably installed in the guide slots, and push-pull cranks hinged to the same end of each rejection push block. The end of each push-pull crank away from the rejection push block is hinged to the corresponding push-pull shaft. Each connecting assembly includes a push-pull plate fixedly connected to the corresponding active slide or driven slide, and a push-pull connecting rod hinged to the corresponding push-pull plate. The end of each push-pull connecting rod away from the push-pull plate is hinged to the corresponding push-pull shaft.

[0019] In some embodiments, the two side walls of the guide slot are mirrored, and the guide slot consists of inclined sections and vertical sections distributed from bottom to top.

[0020] In the same feed seam: both inclined sections are inclined plane structures, and the distance between the two inclined sections gradually increases towards the bottom of the trough; both vertical sections are vertical plane structures.

[0021] Each of the ejector blocks includes a connecting arm that is hinged to the corresponding push-pull crank and an ejector block integrally formed at the end of the corresponding connecting arm away from the push-pull crank. The lower part of each ejector block is integrally formed with a reduced diameter section that matches the two corresponding vertical sections and a trapezoidal block section that matches the two corresponding inclined sections.

[0022] In some implementations, in the same receiving trough, each guide slot is synchronously and differently inclined downwards from one end of each material ejector block near the push-pull shaft to the other end.

[0023] In some embodiments, the active carriage includes an active carriage base fixedly mounted on a slider corresponding to the fourth linear guide, and an active carriage fixed mounting plate, an active carriage movable mounting plate, and an active carriage connecting seat all mounted on the active carriage base. The active carriage connecting seat is fixedly mounted on one end of the active carriage base and connected to the corresponding scrap removal mechanism. The active carriage fixed mounting plate is fixedly mounted on the other end of the active carriage base. The active carriage base has a first strip-shaped hole extending along the width direction of the bed in the middle. The active carriage movable mounting plate is slidably mounted in the first strip-shaped hole by at least two bolts that can be locked or unlocked. The fourth motor is mounted next to the active carriage connecting seat.

[0024] The driven carriage includes a driven carriage base fixedly installed on the slider corresponding to the fourth linear guide rail, and a driven carriage fixed mounting plate, a driven carriage movable mounting plate, and a driven carriage connecting seat, all installed on the driven carriage base. The driven carriage connecting seat is fixedly installed at one end of the driven carriage base and connected to the corresponding waste removal mechanism. The driven carriage fixed mounting plate is fixedly installed at the other end of the driven carriage base. The driven carriage base has a second strip hole extending along the width direction of the bed in the middle. The driven carriage movable mounting plate is slidably installed in the second strip hole by at least two bolts that can be locked or unlocked.

[0025] Of the active carriage mounting plate and the driven carriage mounting plate, one has a bolt hole array consisting of an array of bolt holes, and the other has a strip hole array consisting of an array of strip holes.

[0026] The slide drive assembly includes a fifth rack and two fifth linear guides mounted parallel to each other on the slide track, and a fifth motor mounted on each slide. The two slides are respectively fixedly mounted on the corresponding sliders of the two fifth linear guides. The motor shafts of the fifth motors are synchronously fitted with fifth drive gears that mesh with the fifth rack. Attached Figure Description

[0027] Figure 1 A schematic diagram of the loading and unloading system of a 3D laser cutting machine when the positioning fixture is located directly below the vision inspection component;

[0028] Figure 2 A schematic diagram of the loading and unloading system of a 3D laser cutting machine when the positioning fixture is located inside the machine bed;

[0029] Figure 3This is a structural diagram of the bed frame;

[0030] Figure 4 A schematic diagram of the track slide conveyor mechanism;

[0031] Figure 5 A schematic diagram showing the interaction between one of the vision systems of the slide table, positioning fixture, fixture translation assembly, and waste removal mechanism;

[0032] Figure 6 This is another visual diagram illustrating the coordination relationship between the slide table, positioning fixture, fixture translation assembly, and waste removal mechanism.

[0033] Figure 7 This is a schematic diagram of the material rejection pusher block;

[0034] Figure 8 This is a schematic diagram of the structure of the vision inspection component. Detailed Implementation

[0035] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0036] like Figures 1-8 As shown, a loading and unloading system for a three-dimensional laser cutting machine with visual inspection and self-cleaning functions mainly includes a bed 12 and a track slide conveyor mechanism 17.

[0037] Please see Figures 1-3 The bed 12 has slide inlets and outlets 12c at both ends along its length and a side inlet and outlet 12d on one side along its width. Specifically, the bed 12 includes five uprights 12a and a top frame 12b installed on top of the five uprights 12a. The top frame 12b is a rectangular frame structure. Specifically, the top frame 12b is formed by two opposing main beams 12b1 and two opposing side beams 12b2. The four uprights 12a are supported at the four corners of the top frame 12b, that is, the four corners of the top frame 12b are fixed to the tops of the four uprights 12a respectively. Another column 12a is supported at the middle position of one of the main beams 12b1, thus forming a slide inlet / outlet 12c under both side beams 12b2 of the bed 12, that is, the two slide inlets / outlets 12c are located at both ends of the length direction of the bed 12; at the same time, a side inlet / outlet 12d is formed under the main beams 12b1 supported on the two columns 12a of the bed 12, that is, the side inlet / outlet 12d is located on one side of the width direction of the bed 12. The two main beams 12b1 extend in the length direction of the bed 12, the two side beams 12b2 extend in the width direction of the bed 12, and the column 12a extends in the height direction of the bed 12.

[0038] The above design not only ensures the structural strength of the bed, but also facilitates the expansion and arrangement of functions at the 12d position of the side entrance and exit.

[0039] In this embodiment, each column 12a includes a column body 12a1 extending vertically and a column top plate 12a2 and a column bottom plate 12a3 respectively fixedly installed on the top of the column body 12a1 and the top of the column bottom plate 12a3. Several column reinforcing plates 12a4 extending vertically are installed on the circumference of each column body 12a1. The top of each column reinforcing plate 12a4 is fixedly connected to the corresponding column top plate 12a2, and the bottom of each column reinforcing plate 12a4 is fixedly connected to the corresponding column bottom plate 12a3. Therefore, the structural strength of each column 12a is greatly improved, thereby further improving the structural strength of the bed 12.

[0040] Furthermore, to improve the structural strength of the bed 12, top frame reinforcing triangular ribs 12b3 are installed at the boundaries of the top frame 12b, thereby improving the structural strength of the top frame 12b. At the same time, to improve the connection strength between the top frame 12b and each column 12a, top frame reinforcing triangular plates 12b4 are also provided at the connection between the top frame 12b and each column 12a.

[0041] In this embodiment, two vision inspection components 26 are installed on the main beam 12b1 located at the side entrance / exit 12d. Two waste collection boxes 25 are installed below the main beam 12b1, and the two vision inspection components 26 are positioned directly above the two waste collection boxes 25. The vision inspection components 26 are used to perform visual inspection on the laser-cut workpieces, and the waste collection boxes 25 are used to collect waste materials.

[0042] Please see Figure 1 , Figure 2 and Figure 8 The vision inspection component 26 includes a camera base 26a fixedly mounted on the main beam 12b1, a sixth linear guide rail 26b and a sixth rack 26c fixedly mounted on the camera base 26a along the length of the main beam 12b1, a camera mounting seat 26d mounted on the slider of the sixth linear guide rail 26b, and a sixth motor 26e and a vision camera 26f fixedly mounted on the camera mounting seat 26d. The lens of the vision camera 26f faces downward. The motor shaft of the sixth motor 26e is synchronously fitted with a sixth drive gear 26g that meshes with the sixth rack 26c.

[0043] Therefore, the motor shaft of the sixth motor 26e drives the sixth drive gear 26g to rotate in both directions, thereby causing the camera mount 26d to translate. This allows for flexible adjustment of the position of the vision camera 26f, adapting to workpieces with large dimensions and complex surface structures, and achieving high control precision. Furthermore, the sixth motor 26e is preferably a servo motor, which further enhances the adjustment precision of the vision camera 26f's position.

[0044] Furthermore, by adjusting the positions of the two vision cameras 26f, a workpiece can be visually inspected in a coordinated manner, thereby improving the efficiency of visual inspection and avoiding blind spots in visual inspection.

[0045] A light bar 26h extending along the length of the main beam 12b1 is installed at the bottom of the camera base 26a. The light bar 26h is located on the side of the sixth linear guide 26b away from the sixth rack 26c, thereby providing sufficient light source for the visual camera 26f to capture images and ensuring the quality of visual inspection.

[0046] The camera base 26a is also provided with a wire harness guide and limit hole 26a1, which is located between the light strip 26h and the sixth linear guide rail 26b, so as to guide the wire harness and fiber and avoid problems such as wire harness entanglement.

[0047] Furthermore, a wiring harness limiting hole 26d1 is also provided on the camera mounting base 26d to reliably limit the wiring harness connecting the vision camera 26f and the sixth motor 26e.

[0048] In this embodiment, the camera base 26a includes a base body 26a2 fixedly connected to the main beam 12b1, a vertical mounting plate 26a3 extending downward from the outer edge of the base body 26a2 away from the slide rail 17a, and a horizontal mounting plate 26a4 extending horizontally from the lower edge of the vertical mounting plate 26a3 away from the slide rail 17a. The sixth rack 26c is fixedly installed on the side of the vertical mounting plate 26a3 near the slide rail 17a. The light bar 26h and the sixth linear guide rail 26b are both installed on the bottom surface of the horizontal mounting plate 26a4, thereby ensuring the reliable installation of the sixth rack 26c, the light bar 26h, and the sixth linear guide rail 26b. The wire harness guide limiting hole 26a1 is opened on the horizontal mounting plate 26a4. Multiple reinforcing thin plates 26a5 are connected between the vertical mounting plate 26a3 and the horizontal mounting plate 26a4, improving the structural strength between the vertical mounting plate 26a3 and the horizontal mounting plate 26a4.

[0049] Furthermore, the base body 26a2 has an inverted "T" shaped structure, which is fixed to the main beam 12b1 by multiple bolts, ensuring the stability and reliability of the installation, thereby ensuring the quality of visual inspection.

[0050] Please see Figures 1-7 The track slide conveyor mechanism 17 includes a slide track 17a and two slides 17b that can move along the length of the slide track 17a under the drive of the slide drive assembly. Typically, the slide track 17a extends along the X-axis.

[0051] Each slide table 17b is equipped with a positioning fixture 18 that can move along the width direction of the slide table track 17a under the drive of the fixture translation component 19.

[0052] Each tooling translation component 19 includes a tooling base 19a fixedly installed on the corresponding slide table 17b and a tooling translation module for driving the positioning tooling 18 to move along the width direction of the slide table track 17a on the tooling base 19a. Each positioning tooling 18 is synchronously connected to at least one waste removal mechanism 24 for removing waste located on the upper surface of the tooling base 19a into the waste collection box 25.

[0053] Therefore, the slide module in this embodiment can provide two online adjustable degrees of freedom in the horizontal direction. Combined with the multiple degrees of freedom realized on the crossbeam module, it can realize a redundant processing mode with multiple degrees of freedom. This allows for more efficient and flexible laser cutting, enabling it to be applied to the cutting of more complex surfaces and achieving higher processing accuracy. Furthermore, when online visual inspection of the workpiece is required, the positioning fixture 18 moves along the width direction of the slide track 17a to directly below the visual inspection component 26. At the same time, the positioning fixture 18 simultaneously drives the waste removal mechanism 24 to remove the waste on the fixture base 18 into the waste collection box 25. This completes two steps in one step. That is, each time the positioning fixture 18 transfers the workpiece to be inspected to directly below the visual inspection component 26, the waste removal mechanism 24 simultaneously removes the waste on the fixture base 18 into the waste collection box 25. This not only greatly improves processing efficiency but also features a clever mechanical structure design and a high degree of integration. Especially for round metal sheets, they can be rolled out of the slide by their own inertia with just a slight push. This is not only efficient but also has little impact on the production cycle. However, for strip metal sheets, the working stroke of the scrap removal mechanism 24 needs to cover the tooling base 19a as much as possible.

[0054] Each tooling base 19a includes a receiving plate 19a1 and two guide rail mounting brackets 19a2, both of which are fixedly installed on the corresponding slide table 17b. The two guide rail mounting brackets 19a2 are installed opposite each other on both sides of the receiving plate 19a1 along the length of the slide table track 17a. The two guide rail mounting brackets 19a2 are preferably fixedly installed on the slide table 17b and fixedly connected to the receiving plate 19a1, ensuring the stability and reliability of the tooling base 19a.

[0055] Each tooling translation module includes a fourth linear guide rail 19c mounted on one guide rail mounting bracket 19a2 and a fourth linear guide rail 19c and a fourth rack 19b mounted on the other guide rail mounting bracket 19a2. The fourth rack 19b and the fourth linear guide rail 19c both extend along the width direction of the slide rail 17a. The positioning tooling 18 includes an active slide 18a and a driven slide 18b on both sides of the receiving plate 19a1. The active slide 18a and the driven slide 18b are respectively fixedly mounted on the sliders of the corresponding fourth linear guide rails 19c. A fourth motor 19d is mounted on the active slide 18a, and a fourth drive gear 19e that meshes with the fourth rack 19b is synchronously mounted on the motor shaft of each of the fourth motors 19d. When the workpiece is fixed on the active slide 18a and the driven slide 18b, the active slide 18a and the driven slide 18b move synchronously.

[0056] Therefore, the motor shaft of the fourth motor 19d drives the fourth drive gear 19e to rotate in both directions, thereby controlling the translation of the positioning fixture 18 with high precision. Furthermore, the fourth motor 19d is preferably a servo motor, which can further improve the precision control of the translation of the positioning fixture 18.

[0057] In this embodiment, both the active slide 18a and the driven slide 18b are equipped with a waste removal mechanism 24 for removing waste material located on the upper surface of the receiving plate 19a1 to one side of the width direction of the slide rail 17a, thereby improving the cleaning effect on the upper surface of the receiving plate 19a1.

[0058] The upper surface of the receiving plate 19a1 is recessed to form two receiving grooves 19a11 located below the corresponding waste removal mechanism 24, thereby reliably collecting waste generated from laser cutting. Meanwhile, each waste removal mechanism 24 includes a connecting assembly 24a mounted on the corresponding active slide 18a or driven slide 18b, and a removal assembly 24b for removing waste from the corresponding receiving groove 19a11 and transferring it to one side of the slide rail 17a in the width direction. Each set of removal assemblies 24b independently removes waste from the receiving groove 19a11, ensuring high reliability.

[0059] Specifically, the bottom of the receiving groove 19a11 is recessed to form multiple parallel guide slots 19a12 that run through the receiving plate 19a1 along the width direction of the slide rail 17a. Each rejection assembly 24b includes a push-pull shaft 24b1 extending along the length direction of the slide rail 17a, rejection push blocks 24b2 that are slidably installed in the guide slots 19a12, and push-pull mechanisms that are hinged to the same end of each rejection push block 24b2. The crank 24b3, the end of each push-pull crank 24b3 away from the material rejection push block 24b2 is respectively hinged to the corresponding push-pull shaft 24b1. The connecting assembly 24a includes a push-pull plate 24a1 fixedly connected to the corresponding active slide 18a or driven slide 18b and a push-pull connecting rod 24a2 hinged to the corresponding push-pull plate 24a1. The end of each push-pull connecting rod 24a2 away from the push-pull plate 24a1 is respectively hinged to the corresponding push-pull shaft 24b1.

[0060] Therefore, when the active slide 18a and the driven slide 18b move synchronously, each push-pull plate 24a1 can push and pull the corresponding push-pull shaft 24b1 through the corresponding push-pull connecting rod 24a2. The push-pull shaft 24b1 then pushes and pulls the scrap pusher block 24b2 synchronously through each push-pull crank 24b3, thereby pushing the waste in each guide slot 19a12 to the outside of the slide module. Since the cutting waste is usually a metal sheet (whether round or strip-shaped) produced by opening, designing the width of the guide slot 19a12 to be smaller than the metal sheet ensures that the metal sheet is placed obliquely in the guide slot 19a12 and is easily pushed by the scrap pusher block 24b2. If the metal sheet is round, the scrap pusher block 24b2 pushes the round metal sheet slightly, and the round metal sheet can roll into the waste collection box 25 under the support of the side wall of the guide slot 19a12 and by its own inertia.

[0061] Furthermore, to facilitate the ejection of metal sheets from the guide slots 19a12, in this embodiment, within the same receiving groove 19a11, each guide slot 19a12 is synchronously and downwardly inclined from one end of each rejecting pusher 24b2 near the push-pull shaft 24b1 towards the other end, i.e., inclined downwards towards the waste collection box 25. Since each guide slot 19a12 is designed to be inclined downwards towards the output end, whether it is a circular or strip-shaped metal sheet, the rejecting pusher 24b2 only needs to apply a small pushing force as set, allowing the circular and strip-shaped metal sheets to smoothly slide out along the guide slots 19a12 under their own gravity and inertia. This not only improves cleaning ability and efficiency but also better avoids jamming problems.

[0062] Furthermore, in order to make the metal sheet more easily pushed by the ejector block 24b2 in the guide slot 19a12, in this embodiment, the two side walls of the guide slot 19a12 are mirrored, and the guide slot 19a12 is composed of inclined section 19a121 and vertical section 19a122 distributed from bottom to top. Specifically, within the same guide seam 19a12: the heights of the inclined sections 19a121 at all positions are equal, and the heights of the vertical sections 19a122 at all positions are also equal; both inclined sections 19a121 are sloping structures, and the distance between the two inclined sections 19a121 gradually increases towards the bottom of the groove, meaning that the cross-section of the guide seam 19a12 at the two inclined sections 19a121 positions is trapezoidal; both vertical sections 19a122 are vertical planar structures, meaning that the cross-section of the guide seam 19a12 at the two vertical sections 19a122 positions is rectangular, thus enabling the metal sheet produced by laser cutting to be supported at the inclined sections 19a121 positions and to have a certain angle with the vertical sections 19a122, making it easier for it to be pushed by the material pusher block 24b2.

[0063] Correspondingly, each of the rejection push blocks 24b2 includes a connecting arm 24b21 hinged to the corresponding push-pull crank 24b3 and a rejection block 24b22 integrally formed on the end of the corresponding connecting arm 24b21 away from the push-pull crank 24b3. The lower part of each rejection block 24b22 has an integrally formed reduced-diameter section 24b221 adapted to the corresponding two vertical sections 19a122 and a trapezoidal block section 24b222 adapted to the corresponding two inclined sections 19a121. Therefore, the metal sheet produced by laser cutting will be supported at an angle in the guide slot 19a12, but will not completely adhere to the bottom or side wall of the guide slot 19a12, allowing the rejection push block 24b2 to push the metal sheet in the guide slot 19a12 very easily, avoiding jamming problems.

[0064] Furthermore, in this embodiment, the upper part of the rejection block 24b22 is designed to be wider, so that the gap between the upper parts of adjacent rejection blocks 24b22 is very small (usually much smaller than the diameter or width of the metal sheet), thereby pushing away the waste that has not fallen into the guide gap 19a12, ensuring the thoroughness of waste rejection.

[0065] In this embodiment, in order to ensure the stability of the operation of the push-pull shaft 24b1, push-pull shaft guide grooves 19a13 adapted to the corresponding push-pull shaft 24b1 are provided on both sides of the receiving groove 19a11. The two ends of each push-pull shaft 24b1 are slidably embedded in the corresponding push-pull shaft guide groove 19a13, thereby ensuring the synchronicity of the operation of each material rejection push block 24b2 and avoiding jamming problems.

[0066] The active slide 18a includes an active slide base 18a1 fixedly mounted on the slider corresponding to the fourth linear guide 19c, and an active slide fixed mounting plate 18a2, an active slide movable mounting plate 18a3, and an active slide connecting seat 18a4 all mounted on the active slide base 18a1. The active slide connecting seat 18a4 is fixedly mounted on one end of the active slide base 18a1 and connected to the corresponding waste removal mechanism 24. The active slide fixed mounting plate 18a2 is fixedly mounted on the other end of the active slide base 18a1. The active slide base 18a1 has a first strip hole 18a11 extending along the width direction of the bed 12 in the middle. The active slide movable mounting plate 18a3 is slidably mounted in the first strip hole 18a11 by at least two bolts that can be locked or unlocked. The fourth motor 19d is mounted next to the active slide connecting seat 18a4.

[0067] Similarly, the driven carriage 18b includes a driven carriage base 18b1 fixedly mounted on the slider corresponding to the fourth linear guide rail 19c, and a driven carriage fixed mounting plate 18b2, a driven carriage movable mounting plate 18b3, and a driven carriage connecting seat 18b4, all mounted on the driven carriage base 18b1. The driven carriage connecting seat 18b4 is fixedly mounted on one end of the driven carriage base 18b1 and connected to the corresponding scrap removal mechanism 24. The driven carriage fixed mounting plate 18b2 is fixedly mounted on the other end of the driven carriage base 18b1. The driven carriage base 18b1 has a second strip hole 18b11 extending along the width direction of the bed 12 in the middle. The driven carriage movable mounting plate 18b3 is slidably mounted in the second strip hole 18b11 by at least two bolts that can be locked or unlocked.

[0068] Therefore, by adjusting the position of the active carriage movable mounting plate 18a3 on the active carriage base 18a1 and the position of the driven carriage movable mounting plate 18b3 on the driven carriage base 18b1, it can adapt to workpieces of different sizes and has good versatility.

[0069] Furthermore, in the active carriage mounting plate 18a2 and the driven carriage mounting plate 18b2, one of them has a bolt hole array consisting of an array of bolt holes, and the other has a strip hole array consisting of an array of strip holes, which further improves the applicability to workpieces of different sizes.

[0070] In this embodiment, the slide drive assembly includes a fifth rack 21 and two fifth linear guides 20 mounted parallel to each other on the slide track 17a, and a fifth motor 22 mounted on the slide 17b respectively. The two slides 17b are respectively fixedly mounted on the corresponding sliders of the two fifth linear guides 20. The motor shafts of the fifth motors 22 are synchronously rotated and fitted with fifth drive gears 23 that mesh with the fifth rack 21.

[0071] Therefore, the motor shaft of the fifth motor 22 drives the fifth drive gear 23 to rotate in both directions, thereby enabling the slide table 17b to move with high control precision. Furthermore, the fifth motor 22 is preferably a servo motor, which can further improve the precision control of the translation of the slide table 17b.

[0072] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A three-dimensional laser cutting machine feeding and discharging system with visual detection and self-cleaning function, comprising a bed and a track sliding table conveying mechanism, both ends of the bed in the length direction are provided with sliding table entrances and exits, the track sliding table conveying mechanism comprises a sliding table track simultaneously passing through the two sliding table entrances and exits and two sliding tables capable of sliding along the sliding table track under the driving of a sliding table driving assembly, characterized in that: One side of the bed width direction is provided with a side entrance and exit, two visual detection assemblies are installed on the bed, and the two visual detection assemblies are located at the top of the side entrance and exit; the bottom of the side entrance and exit is provided with two waste collection boxes, and the two waste collection boxes are located below the corresponding visual detection assembly; the positioning tool is installed on the sliding table and can move along the bed width direction under the driving of the tool translation assembly; The two sliding tables can independently enter and exit from the adjacent sliding table entrance and exit, and can also synchronously enter and exit from any sliding table entrance and exit. When any sliding table is located beside the side entrance and exit, the positioning tool on the sliding table can move to the position directly below the corresponding visual detection assembly under the driving of the tool translation assembly, and the workpiece on the positioning tool is detected by the visual detection assembly. At the same time, the waste material on the surface of the tool base of the tool translation assembly is removed to the corresponding waste collection box by the waste material removal mechanism installed on the positioning tool.

2. The three-dimensional laser cutting on- and off-feed system with visual detection and self-cleaning function according to claim 1, characterized in that: The bed body includes five columns and a top frame installed on the top of the five columns, the top frame is composed of two oppositely arranged main beams and two oppositely arranged edge beams to form a rectangular structure, four columns are supported at the four corners of the top frame one by one, and the other column is supported at the middle position of one of the main beams, so that the lower part of the two edge beams forms a sliding table entrance and exit, and the lower part of the main beam supported by the two columns forms a side entrance and exit.

3. The three-dimensional laser cutting on- and off-feed system with visual detection and self-cleaning function according to claim 2, characterized in that: The column includes a column body extending in the vertical direction, a column top plate and a column bottom plate fixedly installed at the top and the bottom of the column body respectively, a plurality of column reinforcing plates extending in the vertical direction are installed on the periphery of the column body, the top of each column reinforcing plate is fixedly connected with the corresponding column top plate, and the bottom of each column reinforcing plate is fixedly connected with the corresponding column bottom plate, a top frame reinforcing triangular rib is installed at the boundary of the top frame, and a top frame reinforcing triangular plate is arranged at the connection between the top frame and each column.

4. The three-dimensional laser cutting on- and off-feed system with visual detection and self-cleaning function according to claim 2, characterized in that: The visual detection assembly includes a camera base fixedly installed on the main beam, a sixth linear guide rail and a sixth rack fixedly installed on the camera base along the length direction of the main beam, a camera mounting seat installed on the sliding block of the sixth linear guide rail, and a sixth motor and a visual camera fixedly installed on the camera mounting seat, the lens of the visual camera faces downward, and a sixth driving gear engaged with the sixth rack is synchronously rotatably sleeved on the motor shaft of the sixth motor.

5. The three-dimensional laser cutting on- and off-feed system with visual detection and self-cleaning function according to claim 4, characterized in that: The camera base comprises a base body fixedly connected with the main beam, a vertical mounting plate extending downward from the outer edge of the base body away from the slide rail on one side, and a horizontal mounting plate extending horizontally from the lower edge of the vertical mounting plate away from the slide rail, the sixth rack is fixedly installed on one side of the vertical mounting plate close to the slide rail, the bottom surface of the horizontal mounting plate is provided with a light bar and the sixth linear guide rail, the light bar extends along the length direction of the main beam, the light bar is located on the side of the sixth linear guide rail away from the sixth rack, a wire harness guiding limiting hole is also formed on the horizontal mounting plate, the wire harness guiding limiting hole is located between the light bar and the sixth linear guide rail, and a plurality of reinforcing thin plates are connected between the vertical mounting plate and the horizontal mounting plate.

6. The three-dimensional laser cutting on-line / off-line feeding system with visual detection and self-cleaning function according to claim 1, characterized in that: The tool base comprises a receiving plate and two guide rail mounting frames fixedly installed on the corresponding slide table, the two guide rail mounting frames are oppositely installed on the two sides of the receiving plate along the length direction of the slide rail, the tool translation assembly comprises a fourth linear guide rail installed on one of the guide rail mounting frames and a fourth linear guide rail and a fourth rack installed on the other guide rail mounting frame, the fourth rack and the fourth linear guide rail extend along the width direction of the slide rail, the positioning tool comprises a driving carriage and a driven carriage on the two sides of the receiving plate, the driving carriage and the driven carriage are fixedly installed on the sliders of the corresponding fourth linear guide rails respectively, a fourth motor is installed on the driving carriage, a fourth driving gear engaged with the fourth rack is synchronously rotatably sleeved on the motor shaft of the fourth motor, and a set of waste removing mechanisms for removing the waste on the upper surface of the receiving plate to the corresponding waste collecting box is installed on the driving carriage and the driven carriage.

7. The three-dimensional laser cutting on- and off-feed system with visual detection and self-cleaning function according to claim 6, characterized in that: The upper surface of the receiving plate is recessed to form two receiving grooves located below the corresponding waste removing mechanisms respectively, the waste removing mechanism comprises a connecting assembly installed on the corresponding driving carriage or driven carriage and a removing assembly for removing the waste in the corresponding receiving groove to the corresponding waste collecting box. The groove bottom of the receiving groove is recessed to form a plurality of guide slits penetrating through the receiving plate along the width direction of the slide rail, the removing assembly comprises a push-pull shaft extending along the length direction of the slide rail, a waste pushing block slidingly installed in the guide slit one by one, and a push-pull crank hingedly connected to the same end of each waste pushing block one by one, one end of each push-pull crank away from the waste pushing block is hingedly connected to the corresponding push-pull shaft, and the connecting assembly comprises a push-pull plate fixedly connected with the corresponding driving carriage or driven carriage and a push-pull connecting rod hingedly connected with the corresponding push-pull plate, one end of each push-pull connecting rod away from the push-pull plate is hingedly connected to the corresponding push-pull shaft.

8. The three-dimensional laser cutting on- and off-feed system with visual detection and self-cleaning function according to claim 7, characterized in that: The two side groove walls of the guide slit are mirror images, and the guide slit comprises an inclined section and a vertical section distributed from bottom to top; In the same guide slit: the two inclined sections are both inclined surface structures, and the distance between the two inclined sections gradually increases towards the direction close to the groove bottom, and the two vertical sections are both vertical plane structures. The ejection push block comprises a connecting arm hinged to the corresponding push-pull crank and an ejection block integrally formed at the end of the corresponding connecting arm away from the push-pull crank, and the lower part of the ejection block is integrally formed with a reduced diameter section matched with the corresponding two vertical sections and a trapezoidal block section matched with the corresponding two inclined sections.

9. The three-dimensional laser cutting on- and off-feed system with visual detection and self-cleaning function according to claim 8, characterized in that: In the same receiving groove, each material guiding slot is arranged to be inclined downward from the end of each ejection push block close to the push-pull shaft to the other end.

10. The three-dimensional laser cutting on- and off-feed system with visual detection and self-cleaning function according to claim 6, characterized in that: The driving slide comprises a driving slide base fixedly installed on the slide block of the corresponding fourth linear guide rail, a driving slide fixed mounting plate, a driving slide movable mounting plate and a driving slide connecting seat, the driving slide connecting seat is fixedly installed at one end of the driving slide base and connected with the corresponding waste ejection mechanism, the driving slide fixed mounting plate is fixedly installed at the other end of the driving slide base, the middle part of the driving slide base is provided with a first strip-shaped hole extending along the width direction of the lathe bed, the driving slide movable mounting plate is slidingly fitted in the first strip-shaped hole through at least two bolts capable of being locked or unlocked, and the fourth motor is installed beside the driving slide connecting seat. The driving slide comprises a driving slide base fixedly installed on the slide block of the corresponding fourth linear guide rail, a driving slide fixed mounting plate, a driving slide movable mounting plate and a driving slide connecting seat, the driving slide connecting seat is fixedly installed at one end of the driving slide base and connected with the corresponding waste ejection mechanism, the driving slide fixed mounting plate is fixedly installed at the other end of the driving slide base, the middle part of the driving slide base is provided with a first strip-shaped hole extending along the width direction of the lathe bed, the driving slide movable mounting plate is slidingly fitted in the first strip-shaped hole through at least two bolts capable of being locked or unlocked, and the fourth motor is installed beside the driving slide connecting seat. The driving slide comprises a driving slide base fixedly installed on the slide block of the corresponding fourth linear guide rail, a driving slide fixed mounting plate, a driving slide movable mounting plate and a driving slide connecting seat, the driving slide connecting seat is fixedly installed at one end of the driving slide base and connected with the corresponding waste ejection mechanism, the driving slide fixed mounting plate is fixedly installed at the other end of the driving slide base, the middle part of the driving slide base is provided with a first strip-shaped hole extending along the width direction of the lathe bed, the driving slide movable mounting plate is slidingly fitted in the first strip-shaped hole through at least two bolts capable of being locked or unlocked, and the fourth motor is installed beside the driving slide connecting seat. The driving slide comprises a driving slide base fixedly installed on the slide block of the corresponding fourth linear guide rail, a driving slide fixed mounting plate, a driving slide movable mounting plate and a driving slide connecting seat, the driving slide connecting seat is fixedly installed at one end of the driving slide base and connected with the corresponding waste ejection mechanism, the driving slide fixed mounting plate is fixedly installed at the other end of the driving slide base, the middle part of the driving slide base is provided with a first strip-shaped hole extending along the width direction of the lathe bed, the driving slide movable mounting plate is slidingly fitted in the first strip-shaped hole through at least two bolts capable of being locked or unlocked, and the fourth motor is installed beside the driving slide connecting seat. The driving slide comprises a driving slide base fixedly installed on the slide block of the corresponding fourth linear guide rail, a driving slide fixed mounting plate, a driving slide movable mounting plate and a driving slide connecting seat, the driving slide connecting seat is fixedly installed at one end of the driving slide base and connected with the corresponding waste ejection mechanism, the driving slide fixed mounting plate is fixedly installed at the other end of the driving slide base, the middle part of the driving slide base is provided with a first strip-shaped hole extending along the width direction of the lathe bed, the driving slide movable mounting plate is slidingly fitted in the first strip-shaped hole through at least two bolts capable of being locked or unlocked, and the fourth motor is installed beside the driving slide connecting seat.

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