A six-head linkage laser engraving machine with rotatable cutting heads

Abstract

The present application relates to the technical field of laser engraving and cutting machine, and particularly relates to a six-head linkage laser engraving and cutting machine with rotatable cutting heads, which comprises a machine base, a workbench and a laser unit arranged on the machine base; the laser unit is composed of a laser base, a fixed base and a deflection base, a fixed frame at the bottom of the fixed base is rotatably installed with an X-direction rotating shaft, the X-direction rotating shaft is fixedly connected with a Y-direction rotating shaft, the deflection base is rotatably connected with the two ends of the Y-direction rotating shaft along the two sides in the Y-axis direction, and a laser cutting head is arranged in the middle of the deflection base; a first hydraulic cylinder and a second hydraulic cylinder are arranged between the deflection base and the fixed base, and a driving assembly is arranged on the fixed base; through the single driving assembly cooperating with the double hydraulic cylinders, the laser cutting head is realized to be deflected in the X-axis and Y-axis directions, the control logic is simplified, the manufacturing cost and maintenance difficulty are reduced, and the six-head linkage laser engraving and cutting machine is suitable for high-end machining scenes such as precision part machining and mold manufacturing.

Description

Technical Field

[0001] This invention relates to the field of laser engraving machine technology, specifically to a six-head linkage laser engraving machine with a rotatable cutting head. Background Technology

[0002] Laser engraving technology, with its advantages of high processing precision, small heat-affected zone, and strong adaptability, has been widely used in precision parts processing, mold manufacturing, and 3C product engraving. Among them, the yaw adjustment mechanism of the cutting head is the core component that determines the precision and efficiency of laser engraving. This mechanism needs to achieve bidirectional yaw of the cutting head on the X and Y axes to match the engraving requirements of different processing curved surfaces and inclined surfaces, ensuring that the laser beam is always perpendicular to the processing surface, and guaranteeing uniform engraving depth and smooth edges.

[0003] The existing laser engraving machine's cutting head yaw adjustment mechanism generally adopts a multi-power source drive scheme, such as using independent servo motors to drive the deflection of the X and Y axes respectively. This type of design relies on complex collaborative control logic to achieve precise matching of the dual-axis angles. In addition, the multi-power source drive architecture not only increases the overall manufacturing cost of the machine, but also increases the number of failure points due to the large number of transmission components. The difficulty of equipment maintenance and operation and maintenance costs rise simultaneously, which restricts the widespread application of laser engraving machines in the mid-to-high-end processing field. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned shortcomings in the prior art by providing a six-head linkage laser engraving machine with a rotatable cutting head.

[0005] The objective of this invention is achieved through the following technical solution: a six-head linkage laser engraving machine with a rotatable cutting head, comprising a base; the base is provided with a worktable and a laser unit; the laser unit is movably mounted on the top of the worktable;

[0006] The laser unit includes a laser base, a fixed base fixedly mounted on the laser base, and a tilting base movably mounted on the fixed base. The bottom of the fixed base is provided with a fixed frame. The fixed frame is rotatably mounted with an X-axis rotating shaft. The X-axis rotating shaft extends along the X-axis direction. A Y-axis rotating shaft is fixedly connected to the X-axis rotating shaft. The Y-axis rotating shaft extends along the Y-axis direction. The two sides of the tilting base along the Y-axis direction are respectively rotatably mounted to the two ends of the Y-axis rotating shaft. A laser cutting head is provided in the middle of the tilting base.

[0007] A first hydraulic cylinder is provided between one end of the oscillating seat along the X-axis and the fixed seat; a second hydraulic cylinder is provided between one side of the oscillating seat along the Y-axis and the fixed seat; the fixed seat is provided with a drive assembly for driving the first hydraulic cylinder and the second hydraulic cylinder.

[0008] The present invention is further configured such that the middle part of the X-axis rotating shaft is fixedly connected to the middle part of the Y-axis rotating shaft;

[0009] The Y-axis rotation shaft is located at the middle position of the oscillating seat along the X-axis direction; the X-axis rotation shaft is located at the middle position of the oscillating seat along the Y-axis direction.

[0010] The present invention is further configured such that the first hydraulic cylinder includes a first cylinder body, a first piston head that is slidably and sealed in the first cylinder body, and a first piston rod that is fixedly connected to the first piston head; the first piston rod protrudes from the bottom of the first cylinder body and is provided with a first lower universal joint; the middle part of one end of the deflection seat along the X-axis is provided with a first lower universal sleeve; the first lower universal joint is movably disposed on the first lower universal sleeve; the top of the first cylinder body is provided with a first upper universal sleeve; the bottom of the fixed seat is provided with a first upper universal joint; the first upper universal joint is movably disposed on the first upper universal sleeve.

[0011] The present invention is further configured such that the second hydraulic cylinder includes a second cylinder body, a second piston head movably disposed in the second cylinder body, and a second piston rod fixedly connected to the second piston head; the second piston rod protrudes from the bottom of the second cylinder body and is provided with a second lower universal head; the middle part of one side of the oscillating seat along the Y-axis is provided with a second lower universal sleeve; the second lower universal head is movably disposed in the second lower universal sleeve; the top of the second cylinder body is provided with a second upper universal sleeve; the bottom of the fixed seat is provided with a second upper universal head; the second upper universal head is movably disposed in the second upper universal sleeve.

[0012] The present invention is further configured such that the driving assembly includes a driving cylinder disposed on the top of the fixed base along the X-axis direction and an electric actuator disposed on the top of the fixed base along the X-axis direction.

[0013] The drive cylinder is provided with a first drive chamber and a second drive chamber; a first drive head is slidably and sealed in the first drive chamber; a second drive head is slidably and sealed in the second drive chamber; the first drive chamber is connected to the first cylinder body through a first upper universal head and a first upper universal sleeve; the second drive chamber is connected to the second cylinder body through a second upper universal head and a second upper universal sleeve.

[0014] The invention is further configured such that a drive column is movably disposed within the drive cylinder; a drive rod is fixedly connected to the drive column; the drive rod protrudes from the drive cylinder and is rotatably connected to the output end of the electric actuator; the electric actuator is used to drive the drive column to move along the X-axis direction.

[0015] The first drive head is fixedly connected to a first drive sleeve; the second drive head is fixedly connected to a second drive sleeve; the first drive sleeve has a first drive groove; the second drive sleeve has a second drive groove; one end of the drive column is provided with a first drive pin that is elastically telescopically movably mounted; the other end of the drive column is provided with a second drive pin that is elastically telescopically movably mounted; the drive cylinder has a reset drive sleeve between the first drive sleeve and the second drive sleeve; the reset drive sleeve has a reset drive groove.

[0016] The first drive pin is used to move between the first drive slot and the reset drive slot; the second drive pin is used to move between the second drive slot and the reset drive slot.

[0017] The present invention is further configured such that the first driving groove includes a first entry groove, a first exit groove, a first retracting spiral groove, and a first advancing spiral groove; one end of the first entry groove is disposed near the reset driving sleeve; the other end of the first entry groove is connected to one end of the first retracting spiral groove; the other end of the first retracting spiral groove is connected to one end of the first advancing spiral groove; the other end of the first advancing spiral groove is connected to one end of the first exit groove; the other end of the first exit groove is disposed near the reset driving sleeve; the rotation direction of the first retracting spiral groove is opposite to the rotation direction of the first advancing spiral groove.

[0018] The depths of the first entry groove, the first retracting spiral groove, the first advancing spiral groove, and the first exit groove increase sequentially; both the first entry groove and the first exit groove extend along the X-axis direction.

[0019] The present invention is further configured such that the second driving groove includes a second entry groove, a second exit groove, a second retracting spiral groove, and a second advancing spiral groove; one end of the second entry groove is disposed near the reset driving sleeve; the other end of the second entry groove is connected to one end of the second retracting spiral groove; the other end of the second retracting spiral groove is connected to one end of the second advancing spiral groove; the other end of the second advancing spiral groove is connected to one end of the second exit groove; the other end of the second exit groove is disposed near the reset driving sleeve; the rotation direction of the second retracting spiral groove is opposite to the rotation direction of the second advancing spiral groove.

[0020] The depths of the second entry groove, the second retracting spiral groove, the second advancing spiral groove, and the second exit groove increase sequentially; both the second entry groove and the second exit groove extend along the X-axis direction.

[0021] The present invention is further configured such that the reset drive groove includes a reset exit groove, a front reset entry groove, a front reset spiral groove, a rear reset entry groove, and a rear reset spiral groove; the reset exit groove, the front reset entry groove, and the rear reset entry groove all extend along the X-axis direction.

[0022] One end of the reset exit groove and one end of the front reset entry groove are both located near the first drive sleeve; the other end of the reset exit groove and one end of the rear reset entry groove are both located near the second drive sleeve; the front reset spiral groove is located between the other end of the front reset entry groove and the middle of the reset exit groove; the rear reset spiral groove is located between the other end of the rear reset entry groove and the middle of the reset exit groove; the depth of both the front reset spiral groove and the rear reset spiral groove is less than the depth of the reset exit groove.

[0023] The present invention is further configured such that the base is provided with a Y-axis linear module for driving the worktable to move along the Y-axis direction;

[0024] The base is equipped with a gantry frame; the gantry frame is equipped with six lifting seats arranged along the X-axis; the gantry frame is equipped with an X-axis linear module for driving the lifting seats to move along the X-axis; each lifting seat is equipped with a laser unit; each lifting seat is equipped with a Z-axis linear module for driving the laser unit to move up and down.

[0025] The laser mount is equipped with a protective cover; the fixed mount, the oscillating mount, and the drive assembly are all located inside the protective cover.

[0026] The beneficial effects of this invention are as follows: This invention synchronously drives the first hydraulic cylinder and the second hydraulic cylinder with a single drive component, thereby realizing the bidirectional yaw adjustment of the laser cutting head along the X-axis and Y-axis respectively. It eliminates the need for complex multi-power source collaborative control algorithms, significantly reducing the complexity of control logic and improving the response speed and accuracy of yaw adjustment. In addition, it reduces the manufacturing cost of the equipment, reduces the number of failure points, solves the problem of high maintenance costs of existing equipment, and is more conducive to widespread application. Attached Figure Description

[0027] The invention will be further illustrated with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the invention. For those skilled in the art, other drawings can be obtained based on the following drawings without any creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the laser unit after the protective cover is hidden.

[0030] Figure 3 This is a schematic diagram of the structure of the laser unit fixing seat, the tilting seat and the driving component of the present invention.

[0031] Figure 4 This is a cross-sectional view of the laser unit fixing seat, the tilting seat and the driving component of the present invention.

[0032] Figure 5 yes Figure 4 A magnified view of part A in the middle;

[0033] Figure 6 yes Figure 4 A magnified view of part B in the middle;

[0034] Figure 7 This is a cross-sectional view from another perspective of the cooperation between the laser unit fixing seat, the tilting seat and the driving component of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of the first driving sleeve of the present invention;

[0036] Figure 9 This is a cross-sectional view of the first driving sleeve of the present invention;

[0037] Figure 10 This is a cross-sectional view of the first driving sleeve of the present invention from another perspective;

[0038] Figure 11 This is a schematic diagram of the structure of the second drive sleeve of the present invention;

[0039] Figure 12 This is a cross-sectional view of the second driving sleeve of the present invention;

[0040] Figure 13 This is a cross-sectional view of the second drive sleeve of the present invention from another perspective;

[0041] Figure 14 This is a schematic diagram of the structure of the reset drive sleeve of the present invention;

[0042] Figure 15 This is a structural schematic diagram of the reset drive sleeve of the present invention from another perspective;

[0043] Figure 16 This is a perspective view of the reset drive sleeve of the present invention;

[0044] The components include: 1. Base; 11. Worktable; 12. Y-axis linear module; 13. Gantry frame; 14. Lifting seat; 15. X-axis linear module; 16. Z-axis linear module; 2. Laser base; 21. Fixed base; 22. Swivel base; 24. Fixed frame; 25. X-axis rotation axis; 26. Y-axis rotation axis; 27. Laser cutting head; 28. Protective cover; 3. First hydraulic cylinder; 31. First cylinder body; 32. First piston head; 33. First piston rod; 34. First lower universal head; 35. First lower universal sleeve; 36. First upper universal sleeve; 37. First upper universal head; 4. Second hydraulic cylinder; 41. Second cylinder body; 42. Second piston head; 43. Second piston rod; 44. Second lower universal head; 45. Second lower universal sleeve; 46. Second... 47. Upper universal joint; 5. Drive cylinder; 51. First drive chamber; 52. Second drive chamber; 53. First drive head; 54. Second drive head; 55. Electric actuator; 61. Drive column; 62. Drive rod; 63. First drive pin; 64. Second drive pin; 7. First drive sleeve; 71. First entry groove; 72. First exit groove; 73. First retracting spiral groove; 74. First forward spiral groove; 8. Second drive sleeve; 81. Second entry groove; 82. Second exit groove; 83. Second retracting spiral groove; 84. Second forward spiral groove; 9. Reset drive sleeve; 91. Reset exit groove; 92. Front reset entry groove; 93. Front reset spiral groove; 94. Rear reset entry groove; 95. Rear reset spiral groove. Detailed Implementation

[0045] The present invention will be further described in conjunction with the following embodiments.

[0046] Depend on Figures 1 to 16 As can be seen, the six-head linkage laser engraving machine with rotatable cutting head described in this embodiment includes a base 1; the base 1 is provided with a worktable 11 and a laser unit; the laser unit is movably disposed on the top of the worktable 11;

[0047] The laser unit includes a laser base 2, a fixed base 21 fixedly mounted on the laser base 2, and a tilting base 22 movably mounted on the fixed base 21. A fixed frame 24 is provided at the bottom of the fixed base 21. An X-axis rotating shaft 25 is rotatably mounted on the fixed frame 24. The X-axis rotating shaft 25 extends along the X-axis direction. A Y-axis rotating shaft 26 is fixedly connected to the X-axis rotating shaft 25. The Y-axis rotating shaft 26 extends along the Y-axis direction. The two sides of the tilting base 22 are rotatably mounted to the two ends of the Y-axis rotating shaft 26. A laser cutting head 27 is provided in the middle of the tilting base 22.

[0048] A first hydraulic cylinder 3 is provided between one end of the oscillating seat 22 along the X-axis and the fixed seat 21; a second hydraulic cylinder 4 is provided between one side of the oscillating seat 22 along the Y-axis and the fixed seat 21; the fixed seat 21 is provided with a drive assembly for driving the first hydraulic cylinder 3 and the second hydraulic cylinder 4.

[0049] Specifically, in this embodiment, the six-head linkage laser engraving machine with a rotatable cutting head, when it is necessary to adjust the X-axis sway of the laser cutting head 27, drives the first hydraulic cylinder 3 through the drive assembly. The first piston rod 33 of the first hydraulic cylinder 3 extends or retracts. Since the Y-axis rotating shaft 26 is rotatably located on both sides of the sway seat 22 along the Y-axis, the sway seat 22 can rotate along the Y-axis rotating shaft 26, thereby completing the sway of the sway seat 22 and the laser cutting head 27 in the X-axis direction. When it is necessary to adjust the Y-axis sway of the laser cutting head 27, drives the second hydraulic cylinder 4 through the drive assembly. The second piston rod 43 of the second hydraulic cylinder 4 extends or retracts. Since the X-axis rotating shaft 25 is rotatably located on the fixed frame 24 of the fixed base 21, the sway seat 22 can rotate along the X-axis rotating shaft 25, thereby completing the sway of the sway seat 22 and the laser cutting head 27 in the Y-axis direction.

[0050] The six-head linkage laser engraving machine with a rotatable cutting head described in this embodiment has the middle part of the X-axis rotating shaft 25 fixedly connected to the middle part of the Y-axis rotating shaft 26.

[0051] The Y-axis rotation shaft 26 is located at the middle position of the tilting seat 22 along the X-axis direction; the X-axis rotation shaft 25 is located at the middle position of the tilting seat 22 along the Y-axis direction. This arrangement enables the tilting seat 22 and the laser cutting head 27 to stably tilt in both the X-axis and Y-axis directions.

[0052] This embodiment describes a six-head linkage laser engraving machine with a rotatable cutting head. The first hydraulic cylinder 3 includes a first cylinder body 31, a first piston head 32 that is sealed and slidably disposed on the first cylinder body 31, and a first piston rod 33 that is fixedly connected to the first piston head 32. The first piston rod 33 protrudes from the bottom of the first cylinder body 31 and is provided with a first lower universal joint 34. The tilting seat 22 is provided with a first lower universal joint sleeve 35 at the middle of one end along the X-axis. The first lower universal joint 34 is movably disposed on the first lower universal joint sleeve 35. The top of the first cylinder body 31 is provided with a first upper universal joint sleeve 36. The bottom of the fixed seat 21 is provided with a first upper universal joint 37. The first upper universal joint 37 is movably disposed on the first upper universal joint sleeve 36. Through the above arrangement, the tilting seat 22 and the laser cutting head 27 can stably tilt along the X-axis.

[0053] This embodiment describes a six-head linkage laser engraving machine with a rotatable cutting head. The second hydraulic cylinder 4 includes a second cylinder body 41, a second piston head 42 movably and sealed within the second cylinder body 41, and a second piston rod 43 fixedly connected to the second piston head 42. The second piston rod 43 protrudes from the bottom of the second cylinder body 41 and is provided with a second lower universal joint 44. The tilting seat 22 has a second lower universal sleeve 45 at its center along one side of the Y-axis. The second lower universal joint 44 is movably mounted on the second lower universal sleeve 45. The top of the second cylinder body 41 has a second upper universal sleeve 46. The bottom of the fixed seat 21 has a second upper universal joint 47, which is movably mounted on the second upper universal sleeve 46. Through these arrangements, the tilting seat 22 and the laser cutting head 27 can stably tilt along the Y-axis.

[0054] This embodiment describes a six-head linkage laser engraving machine with a rotatable cutting head. The driving assembly includes a driving cylinder 5 disposed on the top of a fixed base 21 along the X-axis and an electric push rod 55 disposed on the top of the fixed base 21 along the X-axis. The driving cylinder 5 is provided with a first driving cavity 51 and a second driving cavity 52. ​​A first driving head 53 is slidably and sealed in the first driving cavity 51. A second driving head 54 is slidably and sealed in the second driving cavity 52. ​​The first driving cavity 51 is connected to the first cylinder body 31 through a first upper universal head 37 and a first upper universal sleeve 36. The second driving cavity 52 is connected to the second cylinder body 41 through a second upper universal head 47 and a second upper universal sleeve 46. This embodiment describes a six-head linkage laser engraving machine with a rotatable cutting head. A drive column 61 is movably mounted inside the drive cylinder 5. A drive rod 62 is fixedly connected to the drive column 61. The drive rod 62 protrudes from the drive cylinder 5 and is rotatably connected to the output end of an electric push rod 55. The electric push rod 55 drives the drive column 61 to move along the X-axis. A first drive sleeve 7 is fixedly connected to the first drive head 53. A second drive sleeve 8 is fixedly connected to the second drive head 54. A first drive groove is provided inside the first drive sleeve 7. A second drive groove is provided inside the second drive sleeve 8. A first drive pin 63 is elastically telescopically mounted at one end of the drive column 61. A second drive pin 64 is elastically telescopically mounted at the other end of the drive column 61. A reset drive sleeve 9 is provided between the first drive sleeve 7 and the second drive sleeve 8 in the drive cylinder 5. A reset drive groove is provided inside the reset drive sleeve 9. The first drive pin 63 moves between the first drive groove and the reset drive groove. The second drive pin 64 moves between the second drive groove and the reset drive groove. This embodiment describes a six-head linkage laser engraving machine with a rotatable cutting head. The first drive groove includes a first entry groove 71, a first exit groove 72, a first retracting spiral groove 73, and a first advancing spiral groove 74. One end of the first entry groove 71 is located near the reset drive sleeve 9. The other end of the first entry groove 71 is connected to one end of the first retracting spiral groove 73. The other end of the first retracting spiral groove 73 is connected to one end of the first advancing spiral groove 74. The other end of the first advancing spiral groove 74 is connected to one end of the first exit groove 72. The other end of the first exit groove 72 is located near the reset drive sleeve 9. The rotation direction of the first retracting spiral groove 73 is opposite to that of the first advancing spiral groove 74. The depths of the first entry groove 71, the first retracting spiral groove 73, the first advancing spiral groove 74, and the first exit groove 72 increase sequentially. Both the first entry groove 71 and the first exit groove 72 extend along the X-axis direction.This embodiment describes a six-head linkage laser engraving machine with a rotatable cutting head. The second drive groove includes a second entry groove 81, a second exit groove 82, a second retracting spiral groove 83, and a second advancing spiral groove 84. One end of the second entry groove 81 is located near the reset drive sleeve 9. The other end of the second entry groove 81 is connected to one end of the second retracting spiral groove 83. The other end of the second retracting spiral groove 83 is connected to one end of the second advancing spiral groove 84. The other end of the second advancing spiral groove 84 is connected to one end of the second exit groove 82. The other end of the second exit groove 82 is located near the reset drive sleeve 9. The rotation direction of the second retracting spiral groove 83 is opposite to that of the second advancing spiral groove 84. The depths of the second entry groove 81, the second retracting spiral groove 83, the second advancing spiral groove 84, and the second exit groove 82 increase sequentially. Both the second entry groove 81 and the second exit groove 82 extend along the X-axis direction. This embodiment describes a six-head linkage laser engraving machine with a rotatable cutting head. The reset drive groove includes a reset exit groove 91, a front reset entry groove 92, a front reset spiral groove 93, a rear reset entry groove 94, and a rear reset spiral groove 95. The reset exit groove 91, the front reset entry groove 92, and the rear reset entry groove 94 all extend along the X-axis. One end of the reset exit groove 91 and one end of the front reset entry groove 92 are both located near the first drive sleeve 7. The other end of the reset exit groove 91 and one end of the rear reset entry groove 94 are both located near the second drive sleeve 8. The front reset spiral groove 93 is located between the other end of the front reset entry groove 92 and the middle of the reset exit groove 91. The rear reset spiral groove 95 is located between the other end of the rear reset entry groove 94 and the middle of the reset exit groove 91. The depth of the front reset spiral groove 93 and the depth of the rear reset spiral groove 95 are both less than the depth of the reset exit groove 91.

[0055] Specifically, in the six-head linkage laser engraving machine with a rotatable cutting head described in this embodiment, when it is necessary to adjust the X-axis yaw of the laser cutting head 27, the electric push rod 55 first pushes the drive rod 62 and the drive column 61 forward, so that the first drive pin 63 at one end of the drive column 61 enters the first entry groove 71. Because the friction between the first drive head 53 and the first drive cavity 51 is large enough, the first drive pin 63 does not move the first drive head 53 when it moves in the first drive groove; the electric push rod 55 continues to push the drive rod 62 and the drive column 61. Move forward until the first drive pin 63 falls into one end of the first retracting spiral groove 73. At this time, the first drive pin 63 abuts against the front end of the first retracting spiral groove 73. If the drive column 61 continues to be pushed forward, the drive column 61 will drive the first drive head 53 to move forward through the first drive pin 63, thereby changing the oil pressure of the first cylinder 31, so that the first piston rod 33 of the first hydraulic cylinder 3 extends. The stroke of the electric push rod 55 can be controlled to change the sway of the laser cutting head 27 in the X-axis direction.

[0056] Next, the electric actuator 55 drives the drive rod 62 and drive column 61 to move backward, causing the first drive pin 63 to move along the first retracting spiral groove 73. During this process, the first drive head 53 does not move. Until the first drive pin 63 falls into the first forward spiral groove 74, at which point the first drive pin 63 abuts against the rear end of the first forward spiral groove 74. If the drive column 61 continues to be pushed backward, because the first drive pin 63 abuts against the rear end of the first forward spiral groove 74, the drive column 61 will drive the first drive head 53 to move backward via the first drive pin 63, thereby changing the first cylinder block 31. The hydraulic pressure causes the first piston rod 33 of the first hydraulic cylinder 3 to retract. If it is not necessary to control the first drive head 53 to move backward, when the first drive pin 63 falls into the first forward spiral groove 74, the drive column 61 is driven to move forward instead. The first drive pin 63 moves along the first forward spiral groove 74 until the first drive pin 63 falls into the first exit groove 72. Then the drive column 61 is driven to move backward, so that the drive column 61 and the first drive pin 63 can be removed from the first drive groove. The drive column 61 moves from the first entry groove 71 to the first exit groove 72, and the drive column 61 rotates 270 degrees.

[0057] When the Y-axis yaw adjustment of the laser cutting head 27 is required, the electric actuator 55 first pushes the drive rod 62 and the drive column 61 to move backward. The first drive pin 63 and the second drive pin 64 of the drive column 61 first enter the front reset entry groove 92 of the reset drive sleeve 9. The first drive pin 63 and the second drive pin 64 of the drive column 61 move along the front reset entry groove 92 until the first drive pin 63 and the second drive pin 64 fall into the reset exit groove 91 and leave the reset drive sleeve 9 through the reset exit groove 91. The drive column 61 moves from the front reset entry groove 92 to the reset exit groove 91, and the drive column 61 rotates 90 degrees, plus the previous rotation of 270 degrees. Therefore, after the drive column 61 drives the first drive head 53 to move, and then passes through the reset drive sleeve 9, the drive column 61, the first drive pin 63 and the second drive pin 64 are reset again.

[0058] Next, continue to push the drive rod 62 and drive column 61 to move backward, so that the second drive pin 64 enters the second entry groove 81. The second drive groove and the first drive groove are symmetrical. The principle of the second drive pin 64 driving the second drive head 54 to move through the second drive groove is the same as the principle of the first drive pin 63 driving the first drive head 53 to move through the first drive groove, so it will not be described again.

[0059] The six-head linkage laser engraving machine with rotatable cutting head described in this embodiment has a Y-axis linear module 12 for driving the worktable 11 to move along the Y-axis direction.

[0060] The base 1 is provided with a gantry frame 13; the gantry frame 13 is provided with six lifting seats 14 arranged along the X-axis direction; the gantry frame 13 is provided with an X-axis linear module 15 for driving the lifting seats 14 to move along the X-axis direction; each lifting seat 14 is provided with a laser unit; each lifting seat 14 is provided with a Z-axis linear module 16 for driving the laser unit to move up and down.

[0061] The laser mount 2 is equipped with a protective cover 28; the fixed mount 21, the oscillating mount 22 and the drive assembly are all located inside the protective cover 28; the above-mentioned arrangement can protect each component.

[0062] This embodiment achieves eight-axis directional movement by setting up an X-axis linear module 15, a Y-axis linear module 12, and six Z-axis linear modules 16; in addition, by setting up six laser units, the overall work efficiency can be effectively improved.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A laser engraving machine with six rotatable cutting heads, characterized in that: Includes a base (1); the base (1) is provided with a worktable (11) and a laser unit; the laser unit is movably located on the top of the base (1); The laser unit includes a laser base (2), a fixed base (21) fixedly mounted on the laser base (2), and a tilting base (22) movably mounted on the fixed base (21); the bottom of the fixed base (21) is provided with a fixed frame (24); the fixed frame (24) is rotatably provided with an X-axis rotating shaft (25); the X-axis rotating shaft (25) extends along the X-axis direction; the X-axis rotating shaft (25) is fixedly connected to a Y-axis rotating shaft (26); the Y-axis rotating shaft (26) extends along the Y-axis direction; the two sides of the tilting base (22) along the Y-axis direction are respectively rotatably mounted to the two ends of the Y-axis rotating shaft (26); a laser cutting head (27) is provided in the middle of the tilting base (22); A first hydraulic cylinder (3) is provided between one end of the sway seat (22) along the X-axis and the fixed seat (21); a second hydraulic cylinder (4) is provided between one side of the sway seat (22) along the Y-axis and the fixed seat (21); the fixed seat (21) is provided with a drive assembly for driving the first hydraulic cylinder (3) and the second hydraulic cylinder (4); The first hydraulic cylinder (3) includes a first cylinder body (31), a first piston head (32) that is sealed and slidably disposed on the first cylinder body (31), and a first piston rod (33) that is fixedly connected to the first piston head (32); the first piston rod (33) protrudes from the bottom of the first cylinder body (31) and is provided with a first lower universal head (34); the tilting seat (22) is provided with a first lower universal sleeve (35) at the middle of one end along the X-axis direction; the first lower universal head (34) is movably disposed on the first lower universal sleeve (35); the top of the first cylinder body (31) is provided with a first upper universal sleeve (36); the bottom of the fixed seat (21) is provided with a first upper universal head (37); the first upper universal head (37) is movably disposed on the first upper universal sleeve (36); The second hydraulic cylinder (4) includes a second cylinder body (41), a second piston head (42) that is movably and sealed in the second cylinder body (41), and a second piston rod (43) that is fixedly connected to the second piston head (42); the second piston rod (43) protrudes from the bottom of the second cylinder body (41) and is provided with a second lower universal head (44); the middle part of one side of the sway seat (22) along the Y-axis direction is provided with a second lower universal sleeve (45); the second lower universal head (44) is movably provided in the second lower universal sleeve (45); the top of the second cylinder body (41) is provided with a second upper universal sleeve (46); the bottom of the fixed seat (21) is provided with a second upper universal head (47); the second upper universal head (47) is movably provided in the second upper universal sleeve (46); The drive assembly includes a drive cylinder (5) disposed on the top of the fixed base (21) along the X-axis direction and an electric push rod (55) disposed on the top of the fixed base (21) along the X-axis direction; The drive cylinder (5) is provided with a first drive chamber (51) and a second drive chamber (52); a first drive head (53) is provided in a sealed sliding manner in the first drive chamber (51); a second drive head (54) is provided in a sealed sliding manner in the second drive chamber (52); the first drive chamber (51) is connected to the first cylinder body (31) through a first upper universal head (37) and a first upper universal sleeve (36); the second drive chamber (52) is connected to the second cylinder body (41) through a second upper universal head (47) and a second upper universal sleeve (46); A drive column (61) is movably provided inside the drive cylinder (5); a drive rod (62) is fixedly connected to the drive column (61); the drive rod (62) protrudes out of the drive cylinder (5) and is rotatably connected to the output end of the electric push rod (55); the electric push rod (55) is used to drive the drive column (61) to move along the X-axis direction; The first drive head (53) is fixedly connected to the first drive sleeve (7); the second drive head (54) is fixedly connected to the second drive sleeve (8); the first drive sleeve (7) is provided with a first drive groove; the second drive sleeve (8) is provided with a second drive groove; one end of the drive column (61) is elastically telescopically provided with a first drive pin (63); the other end of the drive column (61) is elastically telescopically provided with a second drive pin (64); the drive cylinder (5) is provided with a reset drive sleeve (9) between the first drive sleeve (7) and the second drive sleeve (8); the reset drive sleeve (9) is provided with a reset drive groove. The first drive pin (63) is used to move between the first drive slot and the reset drive slot; the second drive pin (64) is used to move between the second drive slot and the reset drive slot. The first drive groove includes a first entry groove (71), a first exit groove (72), a first retracting spiral groove (73), and a first advancing spiral groove (74); one end of the first entry groove (71) is located near the reset drive sleeve (9); the other end of the first entry groove (71) is connected to one end of the first retracting spiral groove (73); the other end of the first retracting spiral groove (73) is connected to one end of the first advancing spiral groove (74); the other end of the first advancing spiral groove (74) is connected to one end of the first exit groove (72); the other end of the first exit groove (72) is located near the reset drive sleeve (9); the rotation direction of the first retracting spiral groove (73) is opposite to that of the first advancing spiral groove (74); The depths of the first entry groove (71), the first retracting spiral groove (73), the first advancing spiral groove (74), and the first exit groove (72) increase sequentially; both the first entry groove (71) and the first exit groove (72) extend along the X-axis direction. The second drive groove includes a second entry groove (81), a second exit groove (82), a second retracting spiral groove (83), and a second advancing spiral groove (84); one end of the second entry groove (81) is located near the reset drive sleeve (9); the other end of the second entry groove (81) is connected to one end of the second retracting spiral groove (83); the other end of the second retracting spiral groove (83) is connected to one end of the second advancing spiral groove (84); the other end of the second advancing spiral groove (84) is connected to one end of the second exit groove (82); the other end of the second exit groove (82) is located near the reset drive sleeve (9); the rotation direction of the second retracting spiral groove (83) is opposite to that of the second advancing spiral groove (84). The depths of the second entry groove (81), the second retreating spiral groove (83), the second forward spiral groove (84), and the second exit groove (82) increase sequentially; both the second entry groove (81) and the second exit groove (82) extend along the X-axis direction. The reset drive slot includes a reset exit slot (91), a front reset entry slot (92), a front reset spiral slot (93), a rear reset entry slot (94), and a rear reset spiral slot (95); the reset exit slot (91), the front reset entry slot (92), and the rear reset entry slot (94) are all extended along the X-axis direction. One end of the reset exit groove (91) and one end of the front reset entry groove (92) are both located near the first drive sleeve (7); the other end of the reset exit groove (91) and one end of the rear reset entry groove (94) are both located near the second drive sleeve (8); the front reset spiral groove (93) is located between the other end of the front reset entry groove (92) and the middle of the reset exit groove (91); the rear reset spiral groove (95) is located between the other end of the rear reset entry groove (94) and the middle of the reset exit groove (91); the depth of the front reset spiral groove (93) and the depth of the rear reset spiral groove (95) are both less than the depth of the reset exit groove (91).

2. A six-head linkage laser engraving machine with a rotatable cutting head according to claim 1, characterized in that: The middle part of the X-axis rotating shaft (25) is fixedly connected to the middle part of the Y-axis rotating shaft (26); The Y-axis (26) is located at the middle position of the oscillating seat (22) along the X-axis; the X-axis (25) is located at the middle position of the oscillating seat (22) along the Y-axis.

3. A six-head linkage laser engraving machine with a rotatable cutting head according to claim 1, characterized in that: The base (1) is provided with a Y-axis linear module (12) for driving the worktable (11) to move along the Y-axis direction; The base (1) is provided with a gantry (13); the gantry (13) is provided with six lifting seats (14) arranged along the X-axis; the gantry (13) is provided with an X-axis linear module (15) for driving the lifting seats (14) to move along the X-axis; each lifting seat (14) is provided with a laser unit; each lifting seat (14) is provided with a Z-axis linear module (16) for driving the laser unit to move up and down; The laser mount (2) is equipped with a protective cover (28); the fixed mount (21), the oscillating mount (22) and the drive assembly are all located inside the protective cover (28).

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