Engraving machine with quick-release multi-drill head structure
Patent Information
- Application Number
- CN202522089440.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-09-26
AI Technical Summary
现有的一些雕刻机的机头上只设置有单主轴结构，在进行雕刻、钻孔等作业时，往往需要更换不同规格的雕刻刀具或钻头来完成不同的雕刻任务或不同孔径的钻孔任务，这一过程消耗较多时间，而且不能一次完成多种孔径的钻孔任务，降低了机床的工作效率
[0010] By setting up a multi-axis drilling power head assembly, each multi-axis drilling power head can be pre-installed with drill bits of various hole diameters. Multiple drill bits can drill simultaneously, completing drilling tasks of various hole diameters in a single operation. By setting up an engraving spindle assembly, each engraving spindle can be pre-installed with corresponding tools, such as engraving, milling, cutting, or drilling tools, to achieve precision engraving, milling, cutting, or drilling of workpieces. Different engraving spindles are pre-installed with different tools, and the use of these tools is automatically switched through program control. Compared with the single-spindle structure of traditional engraving machine tools, this eliminates the manual tool changing step, reduces tool changing time, and improves processing efficiency.
Smart Images
Figure CN224737892U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical equipment technology, and in particular to an engraving machine with a quick-release multi-drill bit structure. Background Technology
[0002] A CNC engraving machine is an automated device that uses a CNC system to control the rotation or movement of cutting tools to perform engraving, cutting, drilling, and other processing on the surface of a workpiece. Some existing CNC engraving machines only have a single spindle structure on their machine head. When performing engraving or drilling operations, it is often necessary to change to different specifications of engraving tools or drill bits to complete different engraving tasks or drilling tasks with different hole diameters. This process consumes a lot of time and cannot complete drilling tasks of multiple hole diameters at once, reducing the machine tool's working efficiency. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a carving machine with a quick-release multi-drill structure. By setting up a multi-axis drilling power head assembly and a carving spindle assembly, it can complete drilling tasks of multiple hole diameters at one time, and pre-load different tools to reduce tool change time.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] A carving machine with a quick-release multi-drill structure includes a frame, a Y-axis movable seat, a cantilever, a machine head, and a worktable. The Y-axis movable seat is slidably mounted on the frame, and the frame is equipped with a Y-axis drive device for driving the Y-axis movable seat to slide along the Y-axis direction. The cantilever is slidably mounted on the Y-axis movable seat, and the cantilever is equipped with an X-axis drive device for driving the cantilever to slide along the X-axis direction. The machine head includes a vertical support plate, a first Z-axis movable seat, a multi-axis drilling power head assembly, and a carving spindle assembly. The vertical support plate is fixedly connected to one end of the cantilever. The first Z-axis movable seat is slidably mounted on the vertical support plate, and the vertical support plate is equipped with a first Z-axis drive device for driving the first Z-axis movable seat to slide along the Z-axis direction. The multi-axis drilling power head assembly and the carving spindle assembly are mounted on the first Z-axis movable seat. The worktable is mounted on the frame and located below the machine head.
[0006] In some embodiments, the multi-axis drilling power head assembly includes a first multi-axis drilling power head and a second multi-axis drilling power head. A second Z-axis moving seat and a third Z-axis moving seat are fixedly connected to the first and second multi-axis drilling power heads, respectively. The second and third Z-axis moving seats are slidably disposed on the first Z-axis moving seat at intervals. The first Z-axis moving seat is provided with a second Z-axis driving device and a third Z-axis driving device for driving the second and third Z-axis moving seats to slide along the Z-axis direction, respectively. Both the first and second multi-axis drilling power heads include a multi-axis drilling dedicated motor, a multi-spindle assembly, and multiple drill bits. The multi-spindle assembly is detachably connected to the output end of the multi-axis drilling dedicated motor, and the multiple drill bits are mounted on the multi-spindle assembly.
[0007] In at least one embodiment, the output end of the multi-axis drilling motor is provided with an elongated pig snout-shaped end cap, and an output shaft is provided inside the end cap. The end of the output shaft is provided with a straight key. One end of the multi-axis device is provided with a connecting sleeve that matches the end cap. The side wall of the connecting sleeve is provided with a vertical opening, and a locking clamp is fitted on the connecting sleeve. An input shaft is provided inside the connecting sleeve, and the end of the input shaft is provided with a concave key that matches the key. The other end of the multi-axis device is provided with multiple drill sleeves. The multi-axis device is equipped with a driving gear and multiple driven gears. The driving gear is coaxially connected to the input shaft, and the multiple driven gears mesh with the driving gear. The multiple driven gears are coaxially connected to the multiple drill sleeves respectively. Multiple drill bits are respectively mounted on the multiple drill sleeves.
[0008] In at least one embodiment, a Z-axis linear guide is provided between the second Z-axis moving seat, the third Z-axis moving seat and the first Z-axis moving seat, and a sliding connection is achieved through the Z-axis linear guide; the second Z-axis driving device and the third Z-axis driving device are both cylinders, and the output rods of the second Z-axis driving device and the third Z-axis driving device are respectively fixedly connected to the second Z-axis moving seat and the third Z-axis moving seat.
[0009] Compared with the prior art, this utility model achieves at least the following beneficial effects:
[0010] By setting up a multi-axis drilling power head assembly, each multi-axis drilling power head can be pre-installed with drill bits of various hole diameters. Multiple drill bits can drill simultaneously, completing drilling tasks of various hole diameters in a single operation. By setting up an engraving spindle assembly, each engraving spindle can be pre-installed with corresponding tools, such as engraving, milling, cutting, or drilling tools, to achieve precision engraving, milling, cutting, or drilling of workpieces. Different engraving spindles are pre-installed with different tools, and the use of these tools is automatically switched through program control. Compared with the single-spindle structure of traditional engraving machine tools, this eliminates the manual tool changing step, reduces tool changing time, and improves processing efficiency. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;
[0012] Figure 2 This is a schematic diagram of the head unit structure according to an embodiment of this application;
[0013] Figure 3 This is an exploded view of the head unit according to an embodiment of this application;
[0014] Figure 4 This is a schematic diagram of the structure of the first or second multi-axis drilling power head according to an embodiment of this application.
[0015] The diagram is labeled as follows: 1. Frame; 2. Y-axis moving base; 3. Cantilever; 4. Head; 41. Vertical support plate; 42. First Z-axis moving base; 43. Multi-axis drilling power head assembly; 431. First multi-axis drilling power head; 4311. Second Z-axis moving base; 432. Second multi-axis drilling power head; 4321. Third Z-axis moving base; 44. Engraving spindle assembly; 441. First engraving spindle; 4411. Fourth Z-axis moving base; 442. Second engraving spindle; 4421. Fifth Z-axis moving base; 443. Third engraving spindle; 4431. Sixth Z-axis moving base; 5. Worktable; 6. Y-axis drive device; 61. Y-axis motor; 62. Y-axis lead screw. 7. Rod and nut assembly; 71. X-axis drive unit; 72. X-axis motor; 73. Synchronous belt drive assembly; 8. First Z-axis drive unit; 81. Z-axis motor; 82. Z-axis lead screw and nut assembly; 9. Second Z-axis drive unit; 10. Third Z-axis drive unit; 20. Multi-axis drilling motor; 201. End cap; 202. Output shaft; 203. Protruding key; 30. Multi-axis assembly; 301. Connecting bushing; 3011. Vertical opening; 302. Drill bushing; 40. Z-axis linear guide; 50. Fourth Z-axis drive unit; 60. Fifth Z-axis drive unit; 70. Sixth Z-axis drive unit; 80. Auxiliary cylinder; 90. Y-axis linear guide; 100. X-axis linear guide. Detailed Implementation
[0016] The present invention will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present application may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of this application more complete and to fully convey the concept of the present application to those skilled in the art.
[0017] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0018] like Figures 1-4As shown in the embodiment of this application, a carving machine with a quick-release multi-drill structure includes a frame 1, a Y-axis movable seat 2, a cantilever 3, a machine head 4, and a worktable 5. The Y-axis movable seat 2 is slidably mounted on the frame 1, and the frame 1 is provided with a Y-axis driving device 6 for driving the Y-axis movable seat 2 to slide along the Y-axis direction. The cantilever 3 is slidably mounted on the Y-axis movable seat 2, and the cantilever 3 is provided with an X-axis driving device 7 for driving the cantilever 3 to slide along the X-axis direction. The machine head 4 includes a vertical support plate 41 and a first Z-axis... The machine comprises a first Z-axis moving seat 42, a multi-axis drilling power head assembly 43, and an engraving spindle assembly 44. A vertical support plate 41 is fixedly connected to one end of the cantilever 3. The first Z-axis moving seat 42 is slidably mounted on the vertical support plate 41. The vertical support plate 41 is equipped with a first Z-axis drive device 8 for driving the first Z-axis moving seat 42 to slide along the Z-axis direction. The multi-axis drilling power head assembly 43 and the engraving spindle assembly 44 are mounted on the first Z-axis moving seat 42. The worktable 5 is mounted on the frame 1 and located below the machine head 4. Under the combined driving action of the Y-axis drive device 6, the X-axis drive device 7, and the first Z-axis drive device 8, the multi-axis drilling power head assembly 43 and the engraving spindle assembly 44 can achieve linear motion in the Y, X, and Z axes.
[0019] This invention features a multi-axis drilling power head assembly 43, where each multi-axis drilling power head can be pre-installed with drill bits of various hole diameters. Multiple drill bits can drill simultaneously, completing drilling tasks of various hole diameters in a single operation. Furthermore, it incorporates an engraving spindle assembly 44, where each engraving spindle can be pre-installed with corresponding tools, such as engraving, milling, cutting, or drilling tools. This enables precision engraving, milling, cutting, or drilling of workpieces. Different engraving spindles are pre-installed with different tools, which are automatically switched via program control. Compared to the single-spindle structure of traditional engraving machine tools, this eliminates manual tool changing steps and reduces tool changing time. Moreover, the installation of different tools on different engraving spindles allows for the simultaneous completion of the entire process from roughing to semi-finishing to finishing. For example, a rough milling tool can be installed on one engraving spindle for roughing the workpiece, while a finish milling tool can be installed on another engraving spindle for polishing the workpiece surface. This significantly improves processing efficiency compared to the single-spindle structure of traditional engraving machine tools.
[0020] In this embodiment, the multi-axis drilling power head assembly 43 includes a first multi-axis drilling power head 431 and a second multi-axis drilling power head 432. A second Z-axis moving seat 4311 and a third Z-axis moving seat 4321 are fixedly connected to the first multi-axis drilling power head 431 and the second multi-axis drilling power head 432, respectively. The second Z-axis moving seat 4311 and the third Z-axis moving seat 4321 are slidably disposed on the first Z-axis moving seat 42 at intervals. The first Z-axis moving seat 42 is provided with a second Z-axis driving device 9 and a third Z-axis driving device 10 for driving the second Z-axis moving seat 4311 and the third Z-axis moving seat 4321 to slide along the Z-axis direction, respectively. Both the first multi-axis drilling power head 431 and the second multi-axis drilling power head 432 include a multi-axis drilling dedicated motor 20, a multi-spindle unit 30, and multiple drill bits (not shown in the figure). The multi-spindle unit 30 is detachably connected to the output end of the multi-axis drilling dedicated motor 20, and the multiple drill bits are mounted on the multi-spindle unit 30.
[0021] Furthermore, the output end of the multi-axis drilling motor 20 is provided with an elongated pig snout-shaped end cap 201, and an output shaft 202 is provided inside the end cap 201. The end of the output shaft 202 is provided with a straight-line convex key 203. One end of the multi-axis device 30 is provided with a connecting sleeve 301 that matches the end cap 201. The side wall of the connecting sleeve 301 is provided with a vertical opening 3011. A locking clamp (not shown in the figure) is fitted on the connecting sleeve 301. An input shaft (not shown in the figure) is provided inside the connecting sleeve. The end of the input shaft is provided with a... A concave key (not shown in the figure) is provided to match the convex key 203. The convex key 203 and the concave key are connected to achieve circumferential fixation and torque transmission. The other end of the multi-spindle 30 is provided with multiple drill sleeves 302. The multi-spindle 30 is equipped with a driving gear and multiple driven gears (not shown in the figure). The driving gear is coaxially connected to the input shaft. The multiple driven gears mesh with the driving gear, and the multiple driven gears are coaxially connected to the multiple drill sleeves 302 respectively. Multiple drill bits are respectively mounted on the multiple drill sleeves 302. The first multi-axis drilling power head 431 and the second multi-axis drilling power head 432 integrate a multi-axis drilling motor 20, a multi-spindle unit 30, and drill bits, and can be modularly installed on an engraving machine tool. When the multi-spindle unit 30 is connected to the multi-axis drilling motor 20, first align the concave key on the multi-spindle unit 30 with the convex key 203 on the multi-spindle drilling motor 20, then fit the connecting bushing 301 onto the end cover 201, and then lock it with a locking clamp to achieve a stable connection. The installation and disassembly process is simple and convenient, allowing operators to quickly change drill bits of different specifications and reduce downtime. Due to the cooperation between the convex key 203 and the concave key, when the output shaft 202 of the multi-axis drilling motor 20 rotates at high speed, it can drive the input shaft of the multi-spindle unit 30 to rotate at high speed. Through the transmission action of the drive gear and multiple driven gears, multiple drill bits can rotate synchronously to drill holes. By setting multiple drill bits of different specifications, drilling tasks of various hole diameters can be completed in one operation.
[0022] Furthermore, a Z-axis linear guide 40 is provided between the second Z-axis moving seat 4311, the third Z-axis moving seat 4321 and the first Z-axis moving seat 42, and a sliding connection is achieved through the Z-axis linear guide 40; the second Z-axis drive device 9 and the third Z-axis drive device 10 are both cylinders, and the output rods of the second Z-axis drive device 9 and the third Z-axis drive device 10 are fixedly connected to the second Z-axis moving seat 4311 and the third Z-axis moving seat 4321 respectively.
[0023] In this example, the engraving spindle assembly 44 includes a first engraving spindle 441, a second engraving spindle 442, and a third engraving spindle 443. A fourth Z-axis moving seat 4411 and a fifth Z-axis moving seat 4421 are fixedly connected to the first engraving spindle 441 and the second engraving spindle 442, respectively. The fourth Z-axis moving seat 4411 and the fifth Z-axis moving seat 4421 are slidably disposed on the first Z-axis moving seat 42. The first Z-axis moving seat 42 is provided with a fourth Z-axis driving device 50 and a fifth Z-axis driving device 60 for driving the fourth Z-axis moving seat 4411 and the fifth Z-axis moving seat 4421 to slide along the Z-axis direction, respectively. A sixth Z-axis moving seat 4431 is fixedly connected to the third engraving spindle 443, and the sixth Z-axis moving seat 4431 is slidably disposed on the second engraving spindle 442. The second engraving spindle 442 is provided with a sixth Z-axis driving device 70 for driving the sixth Z-axis moving seat 4431 to slide along the Z-axis direction.
[0024] Furthermore, Z-axis linear guides 40 are provided between the fourth Z-axis moving base 4411, the fifth Z-axis moving base 4421 and the first Z-axis moving base 42, and between the sixth Z-axis moving base 4431 and the second engraving spindle 442, and are slidably connected through the Z-axis linear guides 40; the fourth Z-axis drive device 50, the fifth Z-axis drive device 60 and the sixth Z-axis drive device 70 are all cylinders, and the output rods of the fourth Z-axis drive device 50, the fifth Z-axis drive device 60 and the sixth Z-axis drive device 70 are fixedly connected to the fourth Z-axis moving base 4411, the fifth Z-axis moving base 4421 and the sixth Z-axis moving base 4431 respectively.
[0025] In this embodiment, a Z-axis linear guide 40 is also provided between the first Z-axis moving seat 42 and the vertical support plate 41, and a sliding connection is achieved through the Z-axis linear guide 40; the first Z-axis driving device 8 includes a Z-axis motor 81 and a Z-axis lead screw and nut assembly 82, the output shaft 202 of the Z-axis motor 81 is connected to the lead screw of the Z-axis lead screw and nut assembly 82, a nut seat is installed on the nut of the Z-axis lead screw and nut assembly 82, and the nut seat is fixedly connected to the first Z-axis moving seat 42.
[0026] Furthermore, an auxiliary cylinder 80 is vertically installed on both sides of the vertical support plate 41, and the output rod of the auxiliary cylinder 80 is fixedly connected to the first Z-axis moving seat 42. The auxiliary cylinder 80 is used to provide an upward pulling force to the first Z-axis moving seat 42, thereby balancing the gravity of the first Z-axis moving seat 42, the multi-axis drilling power head assembly 43, and the engraving spindle assembly 44, preventing the multi-axis drilling power head assembly 43 and the engraving spindle assembly 44 from falling rapidly due to gravity during operation, ensuring the smooth operation of the multi-axis drilling power head assembly 43 and the engraving spindle assembly 44, and reducing the load on the first Z-axis drive device 8.
[0027] In this embodiment, a Y-axis linear guide 90 is provided between the Y-axis moving seat 2 and the frame 1, and a sliding connection is achieved through the Y-axis linear guide 90; the Y-axis driving device 6 includes a Y-axis motor 61 and a Y-axis lead screw and nut assembly 62, the output shaft 202 of the Y-axis motor 61 is connected to the lead screw of the Y-axis lead screw and nut assembly 62, and a nut seat fixedly connected to the Y-axis moving seat 2 is provided on the nut of the Y-axis lead screw and nut assembly 62.
[0028] In this embodiment, an X-axis linear guide 100 is provided between the cantilever 3 and the Y-axis moving seat 2, and a sliding connection is achieved through the X-axis linear guide 100; the X-axis drive device 7 includes an X-axis motor 71, a synchronous belt drive assembly 72, and an X-axis lead screw and nut pair. The output shaft 202 of the X-axis motor 71 is connected to the synchronous belt drive assembly 72, and the synchronous belt drive assembly 72 is connected to the X-axis lead screw and nut pair. The nut of the X-axis lead screw and nut pair is provided with a nut seat that is fixedly connected to the Y-axis moving seat 2.
[0029] It should be understood that all the above embodiments are exemplary and not restrictive. Any modifications, equivalent changes and alterations made by those skilled in the art to the specific embodiments described above under the concept of this utility model shall still fall within the scope of the technical solution of this utility model.
Claims
1. An engraver with quick release multi-bit head structure, characterized in that: Includes frame, Y-axis moving base, cantilever, machine head and worktable; The Y-axis movable seat is slidably mounted on the frame, and the frame is provided with a Y-axis drive device for driving the Y-axis movable seat to slide along the Y-axis direction; The cantilever is slidably mounted on the Y-axis moving seat, and the cantilever is provided with an X-axis driving device for driving the cantilever to slide along the X-axis direction. The machine head includes a vertical support plate, a first Z-axis movable seat, a multi-axis drilling power head assembly, and an engraving spindle assembly. The vertical support plate is fixedly connected to one end of the cantilever. The first Z-axis movable seat is slidably mounted on the vertical support plate. The vertical support plate is provided with a first Z-axis driving device for driving the first Z-axis movable seat to slide along the Z-axis direction. The multi-axis drilling power head assembly and the engraving spindle assembly are mounted on the first Z-axis movable seat. The workbench is mounted on the frame and located below the machine head.
2. The engraver with quick release multi-drill bit structure according to claim 1, characterized in that: The multi-axis drilling power head assembly includes a first multi-axis drilling power head and a second multi-axis drilling power head. A second Z-axis moving seat and a third Z-axis moving seat are fixedly connected to the first and second multi-axis drilling power heads respectively. The second and third Z-axis moving seats are slidably disposed on the first Z-axis moving seat at intervals. The first Z-axis moving seat is provided with a second Z-axis driving device and a third Z-axis driving device for driving the second and third Z-axis moving seats to slide along the Z-axis direction. Both the first and second multi-axis drilling power heads include a multi-axis drilling motor, a multi-spindle assembly, and multiple drill bits. The multi-spindle assembly is detachably connected to the output end of the multi-axis drilling motor, and the multiple drill bits are mounted on the multi-spindle assembly.
3. The engraver with quick release multi-drill bit structure according to claim 2, characterized in that: The output end of the multi-axis drilling motor is provided with an elongated pig snout-shaped end cap, and an output shaft is provided inside the end cap. The end of the output shaft is provided with a straight key. One end of the multi-axis device is provided with a connecting bushing that matches the end cap. The side wall of the connecting bushing is provided with a vertical opening, and a locking clamp is fitted on the connecting bushing. An input shaft is provided inside the connecting bushing, and the end of the input shaft is provided with a concave key that matches the key. The other end of the multi-axis device is provided with multiple drill bushings. The multi-axis device is equipped with a driving gear and multiple driven gears. The driving gear is coaxially connected to the input shaft, and the multiple driven gears mesh with the driving gear. The multiple driven gears are coaxially connected to the multiple drill bushings respectively. Multiple drill bits are respectively mounted on the multiple drill bushings.
4. The engraver with quick release multi-drill bit structure according to claim 2, characterized in that: The second Z-axis moving seat, the third Z-axis moving seat and the first Z-axis moving seat are provided with a Z-axis linear guide rail and are slidably connected through the Z-axis linear guide rail; the second Z-axis driving device and the third Z-axis driving device are both cylinders, and the output rods of the second Z-axis driving device and the third Z-axis driving device are fixedly connected to the second Z-axis moving seat and the third Z-axis moving seat respectively.
5. The engraver with quick release multi-drill bit structure according to claim 1, characterized in that: The engraving spindle assembly includes a first engraving spindle, a second engraving spindle, and a third engraving spindle. A fourth Z-axis moving base and a fifth Z-axis moving base are fixedly connected to the first and second engraving spindles, respectively. The fourth and fifth Z-axis moving bases are slidably disposed on the first Z-axis moving base. The first Z-axis moving base is provided with a fourth Z-axis driving device and a fifth Z-axis driving device for driving the fourth and fifth Z-axis moving bases to slide along the Z-axis direction. A sixth Z-axis moving base is fixedly connected to the third engraving spindle and is slidably disposed on the second engraving spindle. The second engraving spindle is provided with a sixth Z-axis driving device for driving the sixth Z-axis moving base to slide along the Z-axis direction.
6. The engraver with quick release multi-drill bit structure according to claim 5, characterized in that: Z-axis linear guides are provided between the fourth Z-axis moving base, the fifth Z-axis moving base and the first Z-axis moving base, and between the sixth Z-axis moving base and the second engraving spindle, and are slidably connected through the Z-axis linear guides; the fourth Z-axis driving device, the fifth Z-axis driving device and the sixth Z-axis driving device are all cylinders, and the output rods of the fourth Z-axis driving device, the fifth Z-axis driving device and the sixth Z-axis driving device are fixedly connected to the fourth Z-axis moving base, the fifth Z-axis moving base and the sixth Z-axis moving base, respectively.
7. The engraver having a quick release multi-bit structure according to claim 1, wherein: A Z-axis linear guide rail is also provided between the first Z-axis moving seat and the vertical support plate, and a sliding connection is achieved through the Z-axis linear guide rail; the first Z-axis driving device includes a Z-axis motor and a Z-axis lead screw and nut pair, the output shaft of the Z-axis motor is connected to the lead screw of the Z-axis lead screw and nut pair, and the nut of the Z-axis lead screw and nut pair is provided with a nut seat that is fixedly connected to the first Z-axis moving seat.
8. The engraver having a quick release multi-bit structure according to claim 1, wherein: An auxiliary cylinder is vertically installed on both sides of the vertical support plate, and the output rod of the auxiliary cylinder is fixedly connected to the first Z-axis moving seat.
9. The engraver having a quick release multi-bit structure according to claim 1, wherein: The Y-axis moving seat and the frame are provided with a Y-axis linear guide rail and are slidably connected through the Y-axis linear guide rail; the Y-axis drive device includes a Y-axis motor and a Y-axis lead screw and nut pair, the output shaft of the Y-axis motor is connected to the lead screw of the Y-axis lead screw and nut pair, and the nut of the Y-axis lead screw and nut pair is provided with a nut seat that is fixedly connected to the Y-axis moving seat.
10. The engraver having a quick release multi-bit structure according to claim 1, wherein: An X-axis linear guide rail is provided between the cantilever and the Y-axis moving seat, and a sliding connection is achieved through the X-axis linear guide rail; the X-axis drive device includes an X-axis motor, a synchronous belt drive assembly, and an X-axis lead screw and nut pair. The output shaft of the X-axis motor is driven by the synchronous belt drive assembly, and the synchronous belt drive assembly is driven by the X-axis lead screw and nut pair. The nut of the X-axis lead screw and nut pair is provided with a nut seat that is fixedly connected to the Y-axis moving seat.