A laser cutting device for manufacturing an automobile injection mold

Abstract

The application is suitable for the technical field of laser cutting, and provides a laser cutting equipment for manufacturing automobile injection mold, which comprises a workbench, two supporting leg frames are fixedly installed at the bottom of the workbench, a gantry is slidingly installed at the top outer side of the workbench and is used for adjusting the cutting position, a mechanical arm is fixedly installed on the gantry, and a laser cutting head is fixedly installed on the mechanical arm. The laser cutting equipment for manufacturing automobile injection mold is provided by the whole cooperation of the double-station switching structure, the elastic self-adaptive positioning structure, the mechanical linkage locking and the material pushing structure. The defects of the traditional laser cutting equipment, such as large positioning gap, unstable clamping, material changing stop and poor universality, are effectively solved. The self-adaptive gapless positioning of the mold, the continuous processing of the workstations in alternation, the mechanical linkage automatic material loosening and pushing are realized. The cutting positioning precision and the processing consistency of the automobile injection mold are significantly improved. The equipment operation process is simplified, and the overall processing efficiency and the equipment operation stability are improved.

Description

Technical Field

[0001] This invention belongs to the field of laser cutting technology, and in particular relates to a laser cutting device for manufacturing automotive injection molds. Background Technology

[0002] Automotive injection molds include molds for various interior parts, exterior parts, and functional structural parts. During the processing of mold cores, inserts, runners, and other components, laser cutting equipment is required to complete precision processes such as fine contouring, grooving, removing excess material, and deburring. The positioning stability, clamping convenience, and processing continuity of laser cutting directly determine the molding accuracy and production yield of automotive injection molds.

[0003] Currently, most traditional laser cutting equipment for automotive injection molds uses a single-station fixed worktable structure, with external fixtures for mold clamping and positioning. This approach has several technical drawbacks in actual processing, making it difficult to meet the high-efficiency, precision cutting requirements of small-batch, multi-specification automotive injection molds. Firstly, traditional equipment operates on a single-station processing model, completing only the clamping and cutting of a single mold at a time. The equipment must stop during workpiece loading, unloading, and alignment, resulting in discontinuous process flow, high equipment downtime, poor overall processing continuity, and severely limiting the efficiency of batch mold processing. Secondly, conventional equipment lacks a dedicated embedded positioning structure, relying heavily on manual calibration and external clamping plates. Manual alignment errors are significant, and rigid clamping plates can easily cause surface damage and positioning misalignment, leading to deviations in the laser cutting trajectory and making it difficult to guarantee the accuracy and consistency of the mold cut. Summary of the Invention

[0004] This invention provides a laser cutting device for manufacturing automotive injection molds, aiming to solve the problems mentioned in the background art.

[0005] To solve the above problems, the present invention is implemented as follows: a laser cutting device for manufacturing automotive injection molds, comprising: a worktable, two support legs fixedly mounted on the bottom of the worktable, a gantry frame slidably mounted on the outer top of the worktable for adjusting the cutting position, a robotic arm fixedly mounted on the gantry frame, and a laser cutting head fixedly mounted on the robotic arm for cutting the mold; a connecting plate fixedly mounted on the gantry frame, the connecting plate being located below the worktable and between the two support legs, the same transverse lead screw rotatably mounted on both support legs, the transverse lead screw threaded through the connecting plate to drive the gantry frame to move, a transverse motor fixedly mounted on one of the support legs, and a pulley fixedly mounted on the output shaft of the transverse motor and one end of the transverse lead screw; the two pulleys... A single synchronous belt is installed on the upper part of the worktable to drive the traverse screw to rotate via a traverse motor. Two positioning boxes are fixedly embedded in the worktable for placing molds. The upper surfaces of the two positioning boxes are flush with the upper surface of the worktable. The two positioning boxes are evenly distributed along the center of the worktable so that the robotic arm can turn and switch positions to use a laser cutting head to cut the mold. Multiple positioning columns are fixedly installed on the bottom inner walls of the two positioning boxes. Positioning cylinders are slidably fitted on the tops of the multiple positioning columns. When the positioning cylinders are suspended, the upper surfaces of their tops are flush with the upper surface of the worktable for placing and removing molds. The multiple positioning cylinders slide in contact with each other. Each of the multiple positioning cylinders contains a spring. The bottom end of the spring abuts against the top of the positioning column so that when the mold is placed in, the corresponding number of positioning cylinders descend and compress the spring, causing the mold to sink into the positioning box and be fixed.

[0006] Preferably, a limiting sleeve is slidably installed in both positioning boxes. The limiting sleeve is slidably sleeved on the corresponding multiple positioning columns. The lifting strokes of the two limiting sleeves are opposite, that is: when the limiting sleeve rises, it abuts against the bottom end of the corresponding multiple positioning cylinders, pushing it out of the mold or not falling down, for placing the mold. When the limiting sleeve falls, it disengages from the bottom end of the corresponding multiple positioning cylinders, the mold presses down the positioning cylinders to descend and compress the spring, so that the mold is fixed by the surrounding positioning cylinders.

[0007] Preferably, lifting guide ports are provided on both sides of the two positioning boxes, and lifting plates are slidably installed in the four lifting guide ports. The four lifting plates are respectively fixedly connected to the corresponding limiting sleeves. Four lifting threaded columns are rotatably installed on the worktable. The four lifting threaded columns are threaded through the four lifting plates respectively. The four lifting threaded columns rotate synchronously so that the lifting threaded columns drive the lifting plates and the limiting sleeves to rise and fall synchronously, thereby controlling the state of the positioning cylinders in the two positioning boxes respectively.

[0008] Preferably, the same power spindle is rotatably mounted on both of the outriggers. The power spindle is located above the connecting plate and below the four lifting threaded columns. An assembly shaft is fixedly mounted at the bottom end of each of the four lifting threaded columns. The four assembly shafts are perpendicular to the power spindle. A bevel gear is fixedly sleeved on both the four assembly shafts and the power spindle. Two corresponding bevel gears on the assembly shafts and the power spindle mesh with each other so that the power spindle drives the four lifting threaded columns to rotate synchronously.

[0009] Preferably, a power motor is fixedly installed on one of the support legs, and pulleys are fixedly installed on both the output shaft and the main shaft of the power motor. The same synchronous belt is fitted on both pulleys so that the power motor drives the main shaft to rotate.

[0010] Preferably, the workbench is provided with transverse guide grooves on both sides of the gantry's transverse movement, and transverse guide blocks are slidably installed in both transverse guide grooves. Both transverse guide blocks are fixedly connected to the gantry to support the gantry's sliding, thereby reducing the pressure of the connecting plate on the transverse lead screw.

[0011] Preferably, a controller is fixedly installed on the gantry frame, and the controller is connected to the robotic arm, laser cutting head, traverse motor and power motor.

[0012] Preferably, the diameter of the positioning cylinder is larger than the diameter of the positioning post, and the positioning post has a "T" shaped structure.

[0013] Preferably, the limiting sleeve has multiple through holes, and the positioning post passes through the corresponding through holes so that the limiting sleeve moves up and down along the positioning post.

[0014] Preferably, the top of the lifting threaded column is not higher than the upper surface of the worktable, and the lifting plate is provided with a threaded hole, which engages with the lifting threaded column.

[0015] Compared with related technologies, the laser cutting equipment for manufacturing automotive injection molds provided by this invention has the following advantages: Compared with existing technologies, the laser cutting equipment for automotive injection mold manufacturing provided in this solution effectively solves the defects of traditional laser cutting equipment, such as large positioning gaps, unstable clamping, downtime during material changes, and poor versatility, through the overall coordination of a dual-station switching structure, an elastic adaptive positioning structure, a mechanical linkage locking and material pushing structure. It achieves mold adaptive gapless positioning, continuous processing with alternating stations, and automatic material release and pushing via mechanical linkage, significantly improving the cutting positioning accuracy and processing consistency of automotive injection molds. It also simplifies the equipment operation process and improves the overall processing efficiency and equipment operation stability. Attached Figure Description

[0016] Figure 1This is a front top view three-dimensional structure diagram provided by the present invention; Figure 2 for Figure 1 An enlarged structural diagram of part A shown in the figure; Figure 3 for Figure 1 An enlarged structural diagram of part B shown in the figure; Figure 4 for Figure 1 An enlarged structural diagram of section C shown in the figure; Figure 5 This is a rear-view, bottom-view three-dimensional structural diagram provided by the present invention; Figure 6 for Figure 5 An enlarged structural diagram of part D shown in the figure; Figure 7 for Figure 5 An enlarged structural diagram of part E shown in the figure; Figure 8 for Figure 5 An enlarged structural diagram of part F shown in the figure; Figure 9 for Figure 5 An enlarged structural diagram of part G shown in the figure; Figure 10 This is a top view structural diagram provided by the present invention; Figure 11 for Figure 10 A schematic cross-sectional view of the KK section shown in the diagram; Figure 12 for Figure 11 An enlarged structural diagram of section H shown in the figure; Figure 13 for Figure 11 An enlarged structural diagram of part I shown in the figure; Figure 14 for Figure 13 An enlarged structural diagram of section J shown in the figure; Figure 15 This is a front top-down three-dimensional structural diagram of the gantry frame section; Figure 16 A bottom-view three-dimensional structural diagram of the feeding mechanism; Figure 17 This is a bottom-view three-dimensional structural diagram of the card mold mechanism; Figure 18 This is a schematic diagram of the main sectional view of the angle positioning seat, locking threaded rod, and positioning block.

[0017] Reference numerals: 1. Workbench; 2. Support leg; 3. Gantry frame; 4. Robotic arm; 5. Laser cutting head; 6. Connecting plate; 7. Transverse lead screw; 8. Transverse motor; 9. Belt pulley one; 10. Synchronous belt one; 11. Positioning box; 12. Positioning column; 13. Positioning cylinder; 14. Spring; 15. Limiting sleeve; 16. Lifting guide port; 17. Lifting plate; 18. Lifting threaded column; 19. Power spindle; 20. Assembly shaft; 21. Bevel gear; 22. Power motor; 23. Belt pulley two; 24. Synchronous belt two; 25. Transverse guide groove; 26. Transverse guide block; 27. Controller; 28. L-shaped guide frame; 29. ​​Moving port one; 30. Support column; 31. Fixing plate 32. Shaft seat one; 33. Threaded cylinder; 34. Mold clamping threaded rod; 35. V-shaped clamping block; 36. Positioning port; 37. Positioning block; 38. Driven gear; 39. Push mold motor; 40. Drive gear; 41. Angle positioning seat; 42. Circular positioning groove; 43. Moving port two; 44. Locking threaded rod; 45. Locking block; 46. Nut; 47. Shaft seat two; 48. Push mold threaded rod; 49. Push mold plate; 50. Belt pulley three; 51. Synchronous belt three; 52. Rack; 53. Shaft seat three; 54. Driven shaft one; 55. Gear rod; 56. Shaft seat four; 57. Driven shaft two; 58. Belt pulley four; 59. Synchronous belt four; 60. Belt pulley five; 61. Synchronous belt five. Detailed Implementation

[0018] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0019] This invention provides a laser cutting device for manufacturing automotive injection molds, such as... Figure 1-18As shown, the laser cutting equipment for automotive injection mold manufacturing includes: a worktable 1, with two support legs 2 fixedly installed at the bottom of the worktable 1, and a gantry 3 slidably installed on the outer top of the worktable 1 for adjusting the cutting position. A robotic arm 4 is fixedly installed on the gantry 3, and a laser cutting head 5 is fixedly installed on the robotic arm 4 for cutting the mold. A connecting plate 6 is fixedly installed on the gantry 3, located below the worktable 1 and between the two support legs 2. The same transverse lead screw 7 is rotatably installed on both support legs 2, and the transverse lead screw 7 is threaded through the connecting plate 6 to drive the gantry 3 to move. A transverse motor 8 is fixedly installed on one of the support legs 2, and pulleys 9 are fixedly installed on the output shaft of the transverse motor 8 and one end of the transverse lead screw 7. The same synchronous belt 10 is sleeved on both pulleys 9 to allow the laser cutting head 5 to move. A transverse motor 8 drives a transverse lead screw 7 to rotate. Two positioning boxes 11 are fixedly embedded on the worktable 1 for placing molds. The upper surfaces of the two positioning boxes 11 are flush with the upper surface of the worktable 1. The two positioning boxes 11 are evenly distributed along the center of the worktable 1 so that the robotic arm 4 can turn and switch positions to use the laser cutting head 5 to cut the mold. Multiple positioning posts 12 are fixedly installed on the bottom inner walls of the two positioning boxes 11. Positioning cylinders 13 are slidably sleeved on the top of the multiple positioning posts 12. When the positioning cylinders 13 are suspended, the upper surface of the top of the cylinders is flush with the upper surface of the worktable 1 for placing and removing molds. The multiple positioning cylinders 13 slide in contact with each other. A spring 14 is provided inside the multiple positioning cylinders 13. The bottom end of the spring 14 abuts against the top of the positioning post 12 so that when the mold is placed, the corresponding number of positioning cylinders 13 descend and compress the spring 14, so that the mold sinks into the positioning box 11 and is fixed.

[0020] In this embodiment, when using this equipment, the automotive injection mold to be processed is first placed inside the positioning box 11 on the top surface of the workbench 1. The positioning pins 12 and positioning cylinders 13 arranged in an array inside the positioning box 11 support the mold body. The mold's own weight presses the corresponding positioning cylinder 13 downwards, compressing the spring 14 inside the positioning cylinder 13, causing the mold to sink and embed itself into the positioning box 11, completing the adaptive clamping and fixing. The operator can alternately place the mold to be processed into the two positioning boxes 11 to achieve alternating material feeding at two workstations. During equipment operation, the horizontal movement electric... Machine 8 drives the transverse lead screw 7 to rotate through the transmission structure of pulley 9 and synchronous belt 10. The transverse lead screw 7 is threaded through the connecting plate 6, which drives the gantry 3 to slide laterally along the outer side of the top of the worktable 1, thus completing the overall adjustment of the laser cutting station. The working posture and position of the laser cutting head 5 are adjusted by the mechanical arm 4 mounted on the gantry 3, and the molds fixed inside the two positioning boxes 11 are laser cut sequentially. During the processing, the molds of the other positioning box 11 can be changed and placed while one positioning box 11 is being processed, thus realizing uninterrupted alternating processing operations. This equipment, by installing support legs 2 at the bottom of the worktable 1 and mounting a transverse lead screw 7 and transmission components, places the drive transmission structure in the hollow area at the bottom of the equipment. This effectively saves the working space above the worktable 1 and avoids interference between the transmission structure and mold clamping and laser cutting operations. The lead screw is driven by a motor, pulley, and synchronous belt, ensuring smooth operation and effectively reducing mechanical vibration during the transverse movement of the gantry 3, thus guaranteeing the accuracy of cutting position adjustment. The structure of the worktable 1 with embedded double positioning boxes 11 forms a symmetrical dual processing station, enabling alternating processing and material changing operations, eliminating equipment downtime. The material idle time is greatly reduced, significantly improving the continuity and overall processing efficiency of automotive injection mold cutting. Relying on the elastic adaptive positioning structure composed of positioning pins 12, positioning cylinders 13 and springs 14, the height of the support points can be adaptively adjusted according to the bottom structure of different molds, adapting to the positioning and fixing needs of various irregular injection molds, and becoming more versatile. The mold is fixed by the embedded positioning method of elastic extrusion and sinking, abandoning the traditional rigid clamping structure. Multiple sets of positioning cylinders 13 are arranged in close contact with each other, which can support the bottom of the mold in all directions, eliminating the deviation and vibration during the mold cutting process, and effectively improving the processing accuracy of laser cutting and the quality of finished mold products.

[0021] In a further preferred embodiment of the present invention, a limiting sleeve 15 is slidably installed in each of the two positioning boxes 11. The limiting sleeve 15 is slidably sleeved on the corresponding multiple positioning posts 12. The two limiting sleeves 15 have opposite lifting strokes. That is, when the limiting sleeve 15 rises, it abuts against the bottom end of the corresponding multiple positioning cylinders 13, and pushes it out of the mold or does not fall down, and is used to place the mold. When the limiting sleeve 15 falls and disengages from the bottom end of the corresponding multiple positioning cylinders 13, the mold presses down the positioning cylinders 13 and compresses the spring 14, so that the mold is fixed by the surrounding positioning cylinders 13.

[0022] In this embodiment, during equipment operation, the workstation operation mode can be switched by controlling the lifting and lowering state of the limiting sleeves 15 inside the two sets of positioning boxes 11. During the mold loading and placement stage, the limiting sleeves 15 are controlled to slide upward and abut against the bottom of the multiple positioning cylinders 13, limiting the downward displacement of the positioning cylinders 13 and keeping the positioning cylinders 13 at the same height as the worktable 1. The operator can directly and stably place the automotive injection mold on the top surface of the multiple positioning cylinders 13 without manual alignment and leveling, making the placement operation more convenient. During the mold cutting and processing stage, the limiting sleeves 15 inside the positioning box 11 that carries the mold are controlled to slide downward, so that the limiting sleeves 15 and the bottom of the positioning cylinders 13 are completely separated from the limiting constraint. The mold relies on its own gravity to squeeze the positioning cylinders 13 at the corresponding positions to compress the springs 14 downward, completing the mold's adaptive embedded fixation. The limiting sleeves 15 inside the two sets of positioning boxes 11 always maintain a reverse lifting and lowering stroke state, which can realize stable loading and mold placement at one workstation while locking and fixing processing at the other workstation, continuously cooperating with the equipment's dual-workstation alternating cutting operation. This embodiment adds a reverse-lifting limiting sleeve 15 structure to achieve switchable adjustment of the positioning box 11 station support mode, changing the single floating state of the traditional elastic positioning structure. The limiting sleeve 15 lifts the positioning cylinder 13 to form a rigid support platform, which can effectively avoid the mold tilting and displacement problem caused by the positioning cylinder 13 sinking arbitrarily during mold loading, greatly reducing the difficulty of mold loading and alignment, and improving mold placement efficiency and flatness. After the limiting sleeve 15 is unlocked by descending, it can restore the adaptive elastic positioning function, ensuring the fitting and fixing effect during mold cutting, and taking into account both loading convenience and processing positioning stability. The structural design of the two sets of limiting sleeves 15 with reverse strokes perfectly adapts to the dual-station alternating operation logic of the equipment, so that the two stations perform their respective functions without interfering with each other, continuously improving the continuous processing capability of the equipment. This structure does not require additional manual locking and positioning, and can realize the station mode conversion by mechanical limiting switching. The structure has strong linkage and simple operation, which can effectively avoid the positioning error caused by manual clamping, and further improve the processing consistency of laser cutting of automotive injection molds.

[0023] In a further preferred embodiment of the present invention, lifting guide ports 16 are provided on both sides of the two positioning boxes 11, and lifting plates 17 are slidably installed in the four lifting guide ports 16. The four lifting plates 17 are respectively fixedly connected to the corresponding limiting sleeves 15. Four lifting threaded columns 18 are rotatably installed on the worktable 1. The four lifting threaded columns 18 are threaded through the four lifting plates 17 respectively. The four lifting threaded columns 18 rotate synchronously so that the lifting threaded columns 18 drive the lifting plates 17 and the limiting sleeves 15 to rise and fall synchronously, thereby controlling the state of the positioning cylinders 13 in the two positioning boxes 11 respectively.

[0024] In this embodiment, during equipment operation, the unified switching and adjustment of the workstation status is achieved through the synchronous rotation of four lifting threaded columns 18. After the operator starts the equipment adjustment program, the four lifting threaded columns 18 rotate synchronously, driving the corresponding lifting plates 17 to slide vertically. The lifting plates 17 complete the lifting displacement along the lifting guide 16 on the side of the positioning box 11, synchronously driving the fixedly connected limit sleeves 15 to rise and fall as a whole. With the forward and reverse switching of the lifting threaded columns 18, the limit sleeves 15 inside the two sets of positioning boxes 11 can be controlled to form a reverse lifting state. When the limit sleeve 15 corresponding to any workstation rises with the lifting plate 17, it can abut against the positioning cylinder 13 to maintain a fixed support state, meeting the requirements of quick mold placement and leveling operation. When the limit sleeve 15 corresponding to any workstation falls with the lifting plate 17, it can release the limiting constraint on the positioning cylinder 13, allowing the mold to be pressed down by gravity to complete adaptive positioning and fixation, continuously cooperating with the equipment's dual-workstation alternating cutting process.

[0025] In a further preferred embodiment of the present invention, the same power spindle 19 is rotatably mounted on the two support legs 2. The power spindle 19 is located above the connecting plate 6 and below the four lifting threaded columns 18. An assembly shaft 20 is fixedly mounted at the bottom end of each of the four lifting threaded columns 18. The four assembly shafts 20 are all perpendicular to the power spindle 19. A bevel gear 21 is fixedly sleeved on each of the four assembly shafts 20 and the power spindle 19. The two corresponding bevel gears 21 on the assembly shafts 20 and the power spindle 19 mesh with each other so that the power spindle 19 drives the four lifting threaded columns 18 to rotate synchronously.

[0026] In this embodiment, during equipment operation, the power spindle 19 supported by the outrigger 2 provides a unified power input; when the power spindle 19 rotates, it transmits power to the four assembly shafts 20 through the meshing bevel gears 21; the assembly shafts 20 drive the lifting threaded column 18 fixed at the top to rotate synchronously, thereby realizing the linkage and synchronous operation of the four lifting threaded columns 18; the operator only needs to control the forward and reverse rotation of the power spindle 19 to uniformly control the lifting action of all lifting plates 17 and limit sleeves 15, and complete the synchronous switching of the working state of the positioning cylinder 13 inside the two sets of positioning boxes 11; in the dual-station alternating processing flow of the equipment, the power linkage structure of the power spindle 19 stably switches the station support and positioning modes, adapting to continuous mold loading and unloading and laser cutting operations.

[0027] In a further preferred embodiment of the present invention, a power motor 22 is fixedly installed on one of the support legs 2. A pulley 23 is fixedly installed on both the output shaft of the power motor 22 and the power main shaft 19. The same synchronous belt 24 is sleeved on the two pulleys 23 so that the power motor 22 drives the power main shaft 19 to rotate.

[0028] In this embodiment, during equipment operation, the power motor 22 fixed on the support frame 2 serves as an independent power source. When the power motor 22 runs, it drives the pulley 23 at the output shaft end to rotate. With the help of the ring transmission of the synchronous belt 24, the pulley 23 at the end of the power spindle 19 rotates synchronously, realizing the stable rotation of the power spindle 19. After the power spindle 19 rotates, it transmits power to each assembly shaft 20 and the lifting threaded column 18 step by step, completing the overall lifting and adjustment of each limit sleeve 15. The operator can control the switching of the positioning mode of the dual workstation by controlling the operation status of the power motor 22, and complete the automated clamping and continuous processing of the mold in conjunction with the laser cutting operation process of the equipment.

[0029] In a further preferred embodiment of the present invention, the workbench 1 is provided with transverse guide grooves 25 on both sides of the gantry 3 during transverse movement, and transverse guide blocks 26 are slidably installed in both transverse guide grooves 25. Both transverse guide blocks 26 are fixedly connected to the gantry 3 to support the sliding of the gantry 3, thereby reducing the pressure of the connecting plate 6 on the transverse lead screw 7.

[0030] In this embodiment, during the lateral movement of the gantry 3, the gantry 3 slides and moves laterally, simultaneously driving the bottom-fixed transverse guide block 26 to slide along the transverse guide groove 25 opened on the top surface of the worktable 1. The two sets of transverse guide grooves 25 and transverse guide blocks 26 cooperate to provide full-range sliding support for the gantry 3, so that the overall load of the gantry 3 is borne and shared by the transverse guide grooves 25 and transverse guide blocks 26. This reduces the phenomenon of the gantry 3's own weight and working load being concentrated on the connecting plate 6 and transverse lead screw 7. Together with the lead screw transmission structure, the gantry 3 is smoothly adjusted laterally, continuously ensuring the position adjustment accuracy of the laser cutting head 5.

[0031] In a further preferred embodiment of the present invention, a controller 27 is fixedly installed on the gantry frame 3, and the controller 27 is connected to the robotic arm 4, the laser cutting head 5, the transverse motor 8 and the power motor 22.

[0032] In this embodiment, during the overall operation of the equipment, the operator manages the overall processing flow of the equipment through the controller 27 installed on the gantry 3. The controller 27 outputs control signals to the traverse motor 8 of the robotic arm 4 and the laser cutting head 5 and the power motor 22 respectively. The operation status of the traverse motor 8 can be adjusted in conjunction with the mold cutting processing requirements to realize the automatic adjustment of the lateral displacement of the gantry 3. The start, stop and direction of the power motor 22 are controlled synchronously to complete the automatic switching of the dual-station positioning mode. At the same time, the posture adjustment action of the robotic arm 4 and the start and stop of the cutting operation of the laser cutting head 5 are precisely controlled so that the various mechanical actions of the equipment can work together to complete the continuous cutting processing operation according to the preset procedures.

[0033] In a further preferred embodiment of the present invention, the diameter of the positioning cylinder 13 is larger than the diameter of the positioning post 12, and the positioning post 12 has a "T" shaped structure.

[0034] In this embodiment, during the equipment clamping and positioning operation, the positioning cylinder 13 is sleeved on the outside of the positioning post 12 and maintains a vertical sliding fit. During the mold placement and pressing process, the positioning cylinder 13 slides smoothly down along the outside of the positioning post 12 to compress the spring 14. The T-shaped structure of the positioning post 12 limits and constrains the sliding stroke of the positioning cylinder 13, so that the positioning cylinder 13 always reciprocates within the effective sliding range of the positioning post 12, ensuring that the mold adaptive sinking positioning and subsequent ejection and reset actions are carried out stably and orderly.

[0035] In a further preferred embodiment of the present invention, the limiting sleeve 15 is provided with a plurality of through holes, and the positioning post 12 passes through the corresponding through holes so that the limiting sleeve 15 moves up and down along the positioning post 12.

[0036] In this embodiment, during the operation of switching the workstation positioning mode of the equipment; when the limiting sleeve 15 moves vertically up and down; it forms a through-fit relationship with the positioning column 12 through multiple through holes; so that the limiting sleeve 15 slides vertically along the surface of the column of the multiple positioning column 12 to complete the lifting action; when the limiting sleeve 15 moves up and supports the positioning cylinder 13, it maintains a horizontal support state; when the limiting sleeve 15 moves down and disengages from the positioning cylinder 13, it smoothly resets; and in conjunction with the positioning structure, it completes the switching operation of the rigid mold placement and elastic locking modes of the mold.

[0037] In a further preferred embodiment of the present invention, the top end of the lifting threaded column 18 is not higher than the upper surface of the worktable 1, and the lifting plate 17 is provided with a threaded hole, and the lifting threaded column 18 engages with the threaded hole.

[0038] In this embodiment, the lifting plate 17 forms a threaded engagement with the lifting threaded column 18 through its own threaded hole; during the rotation of the lifting threaded column 18, the lifting plate 17 is driven to rise and fall vertically and smoothly through the threaded engagement; the lifting plate 17 simultaneously drives the limiting sleeve 15 to complete the height adjustment; the lifting threaded column 18 is completely hidden in the area below the workbench 1; the top end does not exceed the upper surface of the workbench 1; the top surface of the workbench 1 remains flat throughout the process; the operator can normally complete the mold placement and material handling operations on the top surface of the workbench 1 without being interfered with by the structure of the lifting threaded column 18.

[0039] To further improve the performance of this device, in addition to the above-mentioned solutions, this solution also includes the following embodiments: In another embodiment of the present invention, two clamping mechanisms are provided on both sides of the top of the workbench 1. The two clamping mechanisms are respectively provided for two positioning boxes 11, used to fix the positioned mold. Each clamping mechanism includes an L-shaped guide frame 28 fixedly installed on the top of the workbench 1. The top of the L-shaped guide frame 28 has a first moving opening 29, and the side has a second moving opening 43. A supporting cylinder 30 is movably installed within the first moving opening 29. The supporting cylinder 30 slides and rotates within the first moving opening 29. A fixing plate 31 is fixedly installed at the top of the supporting cylinder 30. A fixing plate 31 is located on top of the L-shaped guide frame 28. A bearing seat 32 is fixedly installed on the top of the fixing plate 31. A threaded cylinder 33 is rotatably installed on the bearing seat 32. A mold clamping threaded rod 34 is threadedly installed inside the threaded cylinder 33. A V-shaped clamping block 35 is fixedly installed at one end of the mold clamping threaded rod 34 located in the positioning box 11. A positioning opening 36 is provided at the bottom of the mold clamping threaded rod 34. A positioning block 37 is fixedly installed on the top of the fixing plate 31. The top of the positioning block 37 slides into the positioning opening 36 so that when the threaded cylinder 33 rotates, it drives the mold clamping threaded rod 34 to move. The movement drives the V-shaped locking block 35 to lock onto one corner of the mold and pushes the mold to move, eliminating the fixed gap of the mold in the positioning cylinder 13. A driven gear 38 is fixedly sleeved on the threaded cylinder 33. A push mold motor 39 is fixedly installed on the top of the shaft seat 32. A drive gear 40 is fixedly installed on the output shaft of the push mold motor 39. The drive gear 40 meshes with the driven gear 38 to drive the threaded cylinder 33 to rotate. An angle positioning seat 41 is fixedly installed at the bottom end of the supporting cylinder 30. The angle positioning seat 41 is located inside the L-shaped guide frame 28. A circular positioning groove 42 is provided on the 1. A locking threaded rod 44 is slidably installed in the movable port 43. One end of the locking threaded rod 44 extends into the circular positioning groove 42 and is fixedly installed with a locking block 45. The locking block 45 slides and rotates along the circular positioning groove 42, and the other end extends to the outside of the L-shaped guide frame 28 and is fitted with a nut 46. When the nut 46 rotates to tighten the locking threaded rod 44, the locking block 45 is tightly fitted to the inner wall of the circular positioning groove 42, thereby positioning the position and angle of the angle positioning seat 41 and the supporting cylinder 30, so that the V-shaped locking block 35 can be adapted to the mold.

[0040] In this embodiment, after the mold completes its initial adaptive positioning, the operator can perform a secondary precise locking operation on the mold using the clamping mechanism set on both sides of the workbench 1 corresponding to the positioning boxes 11. First, loosen the nut 46 on the outside of the L-shaped guide frame 28; slide the locking threaded rod 44 to adjust the position of the locking block 45 in conjunction with the second moving port 43; so that the locking block 45 is released from the pressing state; rotate and slide the support cylinder 30 to adjust its position and angle along the first moving port 29; drive the top fixing plate 31 and the V-shaped clamping block 35 to adapt to the corner position of the mold; after adjustment, tighten the nut 46; pull the lock Tightening the threaded rod 44 presses the locking block 45 tightly against the inner wall of the circular positioning groove 42; completing the locking and fixing of the angle positioning seat 41 and the supporting cylinder 30; starting the push mold motor 39 drives the drive gear 40 to mesh and drive the driven gear 38 to rotate; causing the threaded cylinder 33 to rotate synchronously; under the limiting cooperation of the positioning block 37 and the positioning port 36, the mold clamping threaded rod 34 is driven to feed horizontally; driving the V-shaped clamping block 35 to press against the edge of the mold and push the mold to fine adjust its position; eliminating the fit gap between the mold and the positioning cylinder 13; after the mold is fixed with no gap and accurately fixed, laser cutting operations can be carried out; By adding an independent clamping mechanism and a mechanical alignment and locking function to the original elastic adaptive positioning, the fit gap after mold placement and positioning can be effectively eliminated, preventing slight offset and shaking during mold cutting. This significantly improves mold positioning accuracy and cutting consistency. The adjustable structure of the supporting cylinder 30 allows for sliding and rotation. Combined with the locking structure of the angle positioning seat 41 and locking block 45, the V-shaped clamping block 35 can flexibly adapt to the edges and corners of injection molds with different shapes and placement angles. This broadens the equipment's mold adaptability and enhances its versatility. The transmission method of gear meshing and threaded feed ensures smooth and controllable mold pushing action, enabling precise micro-adjustment of the mold position. At the same time, the structure of the V-shaped clamping block 35 stably fits the mold edges and corners, resulting in uniform clamping force.

[0041] In another embodiment of the present invention, the top of the workbench 1 is provided with two pushing mechanisms, which are respectively set for two positioning boxes 11 and are used to alternately push the mold in or out. The pushing mechanism includes two pairs of bearing seats 47 fixedly installed on the top of the workbench 1. Each pair of bearing seats 47 is rotatably mounted with a mold pushing thread rod 48. The same mold pushing plate 49 is sleeved on a pair of mold pushing thread rods 48. A pulley 50 is fixedly installed on the same end of each pair of mold pushing thread rods 48. The same synchronous belt 51 is sleeved on the two pulleys 50 so that the pair of mold pushing thread rods 48 rotate synchronously to drive the same mold pushing plate 49 to push in or out of the mold.

[0042] In this embodiment, after the equipment completes the laser cutting process of the mold, the automatic pushing operation of the mold can be completed by the pushing mechanism set on the top of the worktable 1 corresponding to the positioning box 11. When it is necessary to discharge the mold, the single-sided pushing thread rod 48 is driven to rotate. Relying on the transmission cooperation of the pulley 3 50 and the synchronous belt 3 51, the two pushing thread rods 48 in the same group rotate synchronously in the same direction. The synchronously rotating pushing thread rod 48 drives the externally sleeved pushing template 49 to move horizontally above the positioning box 11, and smoothly pushes the processed mold out of the positioning box 11. During the loading operation, the pushing thread rod 48 can be driven to rotate in the opposite direction, driving the pushing template 49 to slide in the opposite direction, and assisting in smoothly pushing the mold to be processed into the positioning box 11 to complete the positioning. The two sets of pushing mechanisms cooperate with each other to adapt to the pushing and pushing operation process of the dual-station alternating processing. By adding a dual-station independent pushing mechanism, automated mold feeding and finished product ejection are achieved, simplifying the equipment loading and unloading process and improving the overall efficiency of mold processing. The synchronous transmission structure using a dual-pull die threaded rod 48 and a synchronous belt 51 ensures uniform force distribution and stable displacement of the push platen 49, effectively preventing mold tilting and displacement during pushing and ensuring accurate mold placement. The dual-station pushing mechanisms work independently without interference, adapting to the equipment's dual-station alternating cutting operation mode, further enhancing the continuity and automation of equipment processing. The overall pure mechanical threaded transmission pushing structure exhibits strong stability, regular and reliable operation, and can ensure long-term consistency and stability in mold loading and unloading.

[0043] In another embodiment of the present invention, racks 52 are fixedly installed on two lifting plates 17 with opposite lifting strokes. Two pairs of bearing seats 53 are fixedly installed on the top of the worktable 1. Driven shafts 54 are rotatably installed on each pair of bearing seats 53. Gear rods 55 are fixedly installed at the same end of each of the two driven shafts 54. The two gear rods 55 mesh with the two racks 52 respectively, so that the lifting of the two limiting sleeves 15 drives the corresponding gear rods 55 and driven shafts 54 to rotate respectively. Two bearing seats 56 are fixedly installed on the top of the worktable 1. Driven shafts 57 are rotatably installed on each of the two bearing seats 56. Driven shafts 57 are fixedly installed at the same end of both driven shafts 54 and 57. The same synchronous belt 59 is fitted onto the two corresponding pulleys 58 on the driven shaft 1 54 and driven shaft 2 57, so that driven shaft 2 57 drives driven shaft 1 54 to rotate. The same pulley 60 is fixedly installed on the same end of the two driven shafts 2 57 and the two push mold threaded rods 48 at the corresponding positions. The same synchronous belt 61 is fitted onto the two corresponding pulleys 60 on the driven shaft 2 57 and the push mold threaded rod 48, so that driven shaft 2 57 drives push mold threaded rod 48 to rotate. The lifting stroke of the lifting plate 17 and the sliding stroke of the push plate 49 have a differential speed, so that the mold is only partially disengaged from the positioning box 11 and no longer sinks into the positioning cylinder 13. Only partial disengagement is required for easy handling.

[0044] In this embodiment, during the equipment workstation mode switching operation, when the lifting plate 17 moves vertically, it drives the fixedly connected rack 52 to move synchronously. The rack 52 drives the gear rod 55 and the driven shaft 54 ​​to rotate through the meshing relationship. The driven shaft 54 ​​drives the driven shaft 57 to rotate synchronously through the pulley 58 and the synchronous belt 59. The driven shaft 57 then drives the push mold thread rod 48 to rotate through the pulley 60 and the synchronous belt 61, thereby driving the push mold plate 49 to slide horizontally. Relying on the differential stroke matching relationship between the lifting plate 17 and the push mold plate 49, the limit sleeve 15 rises and lifts the positioning cylinder 13, causing the mold to partially disengage from the positioning box 11. The push mold plate 49 pushes the mold slightly in sync, causing the mold to disengage from the trapping constraint of the positioning cylinder 13 and only partially move out of the positioning box 11. The material loosening operation can be completed without completely pushing the mold out, which is convenient for workers to quickly pick up and put down the mold. The entire process relies on mechanical linkage to achieve synchronous coordination of positioning unlocking and material loosening push.

[0045] In summary, compared with related technologies, this device, through the overall coordination of a dual-station switching structure, an elastic adaptive positioning structure, a mechanical linkage locking structure, and a material pushing structure, effectively solves the defects of traditional laser cutting equipment, such as large positioning gaps, unstable clamping, downtime during material changes, and poor versatility. It achieves mold adaptive gapless positioning, continuous alternating processing at different stations, and automatic material release and pushing via mechanical linkage. It significantly improves the cutting positioning accuracy and processing consistency of automotive injection molds, simplifies equipment operation procedures, and enhances overall processing efficiency and equipment operational stability.

[0046] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A laser cutting device for manufacturing automotive injection molds, characterized in that, include: The workbench has two support legs fixedly installed at its bottom and a gantry frame slidably installed on the top outer side of the workbench for adjusting the cutting position. A robotic arm is fixedly installed on the gantry frame, and a laser cutting head is fixedly installed on the robotic arm for cutting the mold. A connecting plate is fixedly installed on the gantry frame. The connecting plate is located below the workbench and between two support legs. The same transverse lead screw is rotatably installed on the two support legs. The transverse lead screw is threaded through the connecting plate so that the transverse lead screw drives the gantry frame to move. A transverse motor is fixedly installed on one of the support legs. A pulley is fixedly installed on the output shaft of the transverse motor and one end of the transverse lead screw. The same synchronous belt is sleeved on the two pulleys so that the transverse motor drives the transverse lead screw to rotate. Two positioning boxes are fixedly embedded in the worktable for placing the mold. The upper surfaces of the two positioning boxes are flush with the upper surface of the worktable. The two positioning boxes are evenly distributed along the center of the worktable so that the robotic arm can turn and switch positions to use the laser cutting head to cut the mold. Multiple positioning columns are fixedly installed on the bottom inner wall of both positioning boxes. Positioning cylinders are slidably sleeved on the top of each positioning column. When the positioning cylinders are suspended, the upper surface of the top of each positioning cylinder is flush with the upper surface of the worktable for placing and removing molds. The multiple positioning cylinders slide in contact with each other. Each positioning cylinder is equipped with a spring, and the bottom end of the spring abuts against the top of the positioning column.

2. The laser cutting equipment for manufacturing automotive injection molds as described in claim 1, characterized in that, Both positioning boxes are slidably installed with limit sleeves, which are slidably fitted onto the corresponding positioning columns, and the two limit sleeves have opposite lifting strokes.

3. The laser cutting equipment for manufacturing automotive injection molds as described in claim 2, characterized in that, Lifting guide ports are provided on both sides of the two positioning boxes. Lifting plates are slidably installed in each of the four lifting guide ports. The four lifting plates are fixedly connected to the corresponding limiting sleeves. Four lifting threaded columns are rotatably installed on the worktable. The four lifting threaded columns are threaded through the four lifting plates. The four lifting threaded columns rotate synchronously so that the lifting threaded columns drive the lifting plates and limiting sleeves to rise and fall synchronously, thereby controlling the state of the positioning cylinders in the two positioning boxes respectively.

4. The laser cutting equipment for manufacturing automotive injection molds as described in claim 3, characterized in that, The same power spindle is rotatably mounted on both of the outriggers. The power spindle is located above the connecting plate and below the four lifting threaded columns. An assembly shaft is fixedly mounted at the bottom of each of the four lifting threaded columns. The four assembly shafts are perpendicular to the power spindle. A bevel gear is fixedly sleeved on both the four assembly shafts and the power spindle. Two corresponding bevel gears on the assembly shafts and the power spindle mesh with each other so that the power spindle drives the four lifting threaded columns to rotate synchronously.

5. The laser cutting equipment for manufacturing automotive injection molds as described in claim 4, characterized in that, One of the support legs is fixedly mounted with a power motor. Both the output shaft and the main shaft of the power motor are fixedly mounted with pulleys. The same synchronous belt is fitted onto both pulleys so that the power motor drives the main shaft to rotate.

6. The laser cutting equipment for manufacturing automotive injection molds as described in claim 1, characterized in that, The workbench is provided with transverse guide grooves on both sides of the gantry's transverse movement. Transverse guide blocks are slidably installed in both transverse guide grooves. Both transverse guide blocks are fixedly connected to the gantry to support the gantry's sliding and thus reduce the pressure of the connecting plate on the transverse lead screw.

7. The laser cutting equipment for manufacturing automotive injection molds as described in claim 5, characterized in that, A controller is fixedly installed on the gantry frame, and the controller is connected to the robotic arm, laser cutting head, traverse motor and power motor.

8. The laser cutting equipment for manufacturing automotive injection molds as described in claim 1, characterized in that, The diameter of the positioning cylinder is larger than the diameter of the positioning post, and the positioning post has a "T" shaped structure.

9. The laser cutting equipment for manufacturing automotive injection molds as described in claim 2, characterized in that, The limiting sleeve has multiple through holes, and the positioning post passes through the corresponding through holes so that the limiting sleeve moves up and down along the positioning post.

10. The laser cutting equipment for manufacturing automotive injection molds as described in claim 3, characterized in that, The top of the lifting threaded column is not higher than the upper surface of the worktable, and the lifting plate has a threaded hole, which engages with the lifting threaded column.

Images