A carving device for processing decorative stone

Abstract

The application discloses a kind of engraving devices for decorative stone processing, including numerical control engraver, transmission mechanism, transmission adjusting mechanism, stone fixing mechanism and auxiliary stone fixing mechanism;The numerical control engraver is equipped with numerical control engraver moving seat, numerical control engraver workstation, numerical control engraver base and numerical control engraver working head, it is related to stone processing engraving equipment technical field.The application is driven gear is provided with multiple groups and driving gear and driving gear connecting plate rotary connection, by holding adjusting handle driving gear connecting plate is driven in driving gear adjusting seat inside activity, the position of driving gear can be adjusted and the meshing state of driving gear and driven gear is adjusted, can be selected according to the appearance of decorative stone stone fixing mechanism, so that stone fixing mechanism can better fix decorative stone, the selection and use of stone fixing mechanism in the process are convenient, also save the energy consumption of decorative stone fixing.

Description

Technical Field

[0001] This invention relates to the field of stone processing and carving equipment technology, specifically a carving device for decorative stone processing. Background Technology

[0002] In the current technology, decorative stone processing is often carried out by CNC engraving machine. By placing the decorative stone on the worktable of the CNC engraving machine and pre-programming the program in the CNC engraving machine, the working head of the CNC engraving machine can work and engrave the decorative stone. CNC engraving machines encompass woodworking engraving machines, stone engraving machines, advertising engraving machines, glass engraving machines, laser engraving machines, plasma engraving machines, and laser cutting machines. They can perform relief, flat, and openwork engraving on materials such as aluminum alloy, copper, bakelite, wood, jade, glass, plastic, and acrylic. They offer high engraving speed and precision. However, in current technology, the worktable of CNC engraving machines is mostly flat. When placing decorative stone on the worktable, external equipment is needed for fixation. This not only affects the processing efficiency of the decorative stone but also, if the external equipment is not securely fixed, affects the processing quality. Therefore, there is room for improvement. Summary of the Invention

[0003] The purpose of this invention is to provide a carving device for processing decorative stone, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a carving device for decorative stone processing, comprising a CNC carving machine, a transmission mechanism, a transmission adjustment mechanism, a stone fixing mechanism, and an auxiliary stone fixing mechanism; the CNC carving machine includes a CNC carving machine moving base, a CNC carving machine worktable, a CNC carving machine base, and a CNC carving machine working head; the CNC carving machine working head is fixedly connected to the CNC carving machine moving base; the CNC carving machine worktable is fixedly connected to the CNC carving machine base; the CNC carving machine moving base is movably connected to the CNC carving machine base; the transmission mechanism is movably connected to the CNC carving machine worktable; the stone fixing mechanism is movably connected to the transmission mechanism; the transmission adjustment mechanism is fixedly connected to the CNC carving machine worktable; the auxiliary stone fixing mechanism is fixedly connected to the transmission adjustment mechanism; and the side of the auxiliary stone fixing mechanism away from the transmission adjustment mechanism is fixedly connected to the stone fixing mechanism.

[0005] As a further embodiment of the present invention: the transmission mechanism includes a driven gear and a driving gear; the transmission adjustment mechanism includes a base frame, a base frame adjustment seat, and a driving gear connecting plate; the driven gear is rotatably connected to the CNC engraving machine worktable; a spindle is fixedly connected to one side of the driven gear; the end of the spindle away from the driven gear passes through the CNC engraving machine worktable and is movably connected to the stone fixing mechanism; the base frame adjustment seat is fixedly connected to the CNC engraving machine worktable and movably connected to the base frame; a driving gear adjustment seat is fixedly connected to one side of the base frame; the driving gear connecting plate is movably connected to the driving gear adjustment seat; a servo motor is fixedly connected to one side of the driving gear connecting plate; the output end of the servo motor passes through the driving gear connecting plate and is fixedly connected to the driving gear; and the driving gear is movably connected to the driven gear.

[0006] As a further embodiment of the present invention: the stone fixing mechanism is provided with a sleeve, a fixed rod and a movable rod. The sleeve is movably connected to the main shaft, the fixed rod is fixedly connected to the sleeve, and the movable rod is movably connected to the fixed rod. A screw seat is fixedly connected to the end of the movable rod away from the fixed rod, and a stone fixing screw is screwed into the screw seat.

[0007] As a further embodiment of the present invention: the auxiliary stone fixing mechanism includes a height-adjusting fixing frame and a height-adjusting tie rod. A support base is fixedly connected to one side of the sleeve. The height-adjusting fixing frame is fixedly connected to the base frame. The height-adjusting tie rod is embedded inside the height-adjusting fixing frame. The height-adjusting fixing frame is movably connected to the height-adjusting tie rod through a height-adjusting bolt. One end of the height-adjusting tie rod is movably connected to the support base.

[0008] As a further embodiment of the present invention: an adjusting gear is rotatably connected to one side of the sleeve, a rack is meshed with the outer side of the adjusting gear, and one side of the rack is fixedly connected to the movable rod.

[0009] As a further embodiment of the present invention: an adjustment handle is fixedly connected to one end of the drive gear connecting plate that passes through the drive gear adjusting seat, and the outer side of the adjustment handle is provided with anti-slip texture.

[0010] As a further embodiment of the present invention: both the fixed rod and the movable rod are fixedly connected to the outer side of a ring, and a tension spring is hooked inside the ring.

[0011] As a further embodiment of the present invention: an anti-disengagement seat is fixedly connected to the end of the main shaft away from the driven gear, and a silicone sleeve is fixedly connected to the side of the anti-disengagement seat near the main shaft.

[0012] As a further embodiment of the present invention: an adjusting gear shaft is provided on one side of the adjusting gear, one end of the adjusting gear shaft passes through the adjusting gear and is rotatably connected to the sleeve, and the adjusting gear shaft is fixedly connected to the adjusting gear.

[0013] As a further embodiment of the present invention: a connecting rib is provided on one side of the movable rod, and the end of the rack away from the adjusting gear is fixedly connected to the movable rod through the connecting rib.

[0014] Compared with the prior art, the beneficial effects of the present invention are: After the decorative stone is placed on the CNC engraving machine's worktable, the drive gear rotates, which in turn drives the driven gear to rotate. The driven gear then drives the spindle to rotate. Power is applied to the sleeve to fix it to the spindle. The spindle then drives the stone fixing mechanism to rotate. During the rotation of the stone fixing mechanism, the swaying of the fixed rod and the movable rod allows the stone fixing screw to contact the outer wall of the decorative stone. The screw can then be fixed to the outer wall of the decorative stone through the screw seat, thus completing the stone fixing operation. 1. Since there are multiple sets of driven gears and the driving gear is rotatably connected to the driving gear connecting plate, by holding the adjustment handle, the driving gear connecting plate can be moved inside the driving gear adjustment seat. The position of the driving gear can be adjusted and the meshing state between the driving gear and the driven gear can be adjusted. The stone fixing mechanism can be conveniently selected according to the appearance of the decorative stone so that the stone fixing mechanism can better fix the decorative stone. The selection and use of the stone fixing mechanism is convenient and saves energy consumed in fixing the decorative stone. 2. During the rotation of the stone fixing mechanism, the height of the adjusting rod relative to the adjusting fixing frame can be adjusted by adjusting the adjusting bolt. During this process, one end of the adjusting rod is rotatably connected to the support base. This not only allows the adjusting rod to limit the height of the stone fixing mechanism, but also ensures the stability of the stone fixing mechanism during rotation. 3. Because an adjusting gear is rotatably connected to one side of the sleeve, and a rack fixed to the movable rod is meshed on the outer side of the adjusting gear, precise synchronous control can be achieved when controlling the length of the two sets of movable rods. The length error between the two sets of movable rods and the sleeve is small, which can perform better clamping operations on decorative stone. 4. Since both the fixed rod and the movable rod are fixedly connected to one side with rings, and both sets of rings are hooked by tension springs, and the opposite side of the tension springs is provided with connecting ribs, the movable rod can be made smoother during adjustment through the tension springs and rings, and a more stable structure can be maintained for fixing the screw and screw seat. Attached Figure Description

[0015] Figure 1 This is one of the schematic diagrams of the overall structure of the present invention; Figure 2This is a second schematic diagram of the overall structure of the present invention; Figure 3 This is one of the structural schematic diagrams of the stone fixing mechanism of the present invention; Figure 4 This is the second structural schematic diagram of the stone fixing mechanism of the present invention; Figure 5 This is a schematic diagram of the transmission adjustment mechanism of the present invention; Figure 6 This is a schematic diagram showing the connection between the main shaft and the stone fixing mechanism of the present invention; Figure 7 This is a schematic diagram showing the connection between the driven gear and the driving gear of the present invention; Figure 8 This is an enlarged view of invention A; In the diagram: 1. CNC engraving machine; 11. CNC engraving machine moving base; 12. CNC engraving machine worktable; 13. CNC engraving machine base; 14. CNC engraving machine working head; 2. Transmission mechanism; 21. Driven gear; 22. Drive gear; 23. Spindle; 24. Anti-detachment seat; 3. Transmission adjustment mechanism; 31. Base frame; 32. Base frame adjustment seat; 33. Drive gear adjustment seat; 34. Drive gear connecting plate; 35. Adjustment handle; 36. Servo motor; 4. Stone fixing mechanism; 40. Sleeve; 41. Fixed rod; 42. Movable rod; 43. Screw seat; 44. Stone fixing screw; 45. Tension spring; 46. Ring; 47. Adjustable gear; 48. Rack; 49. Support seat; 5. Auxiliary stone fixing mechanism; 51. Height adjustment fixing frame; 52. Height adjustment rod; 53. Height adjustment bolt; 6. Connecting rib; 7. Adjustable gear shaft. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention 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 invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" 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 communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0018] Please see Figures 1-8In this embodiment of the invention, a carving device for decorative stone processing includes a CNC carving machine 1, a transmission mechanism 2, a transmission adjustment mechanism 3, a stone fixing mechanism 4, and an auxiliary stone fixing mechanism 5. The CNC carving machine 1 is equipped with a CNC carving machine movable base 11, a CNC carving machine worktable 12, a CNC carving machine base 13, and a CNC carving machine working head 14. The CNC carving machine working head 14 is fixedly connected to the CNC carving machine movable base 11, the CNC carving machine worktable 12 is fixedly connected to the CNC carving machine base 13, the CNC carving machine movable base 11 is movably connected to the CNC carving machine base 13, the transmission mechanism 2 is movably connected to the CNC carving machine worktable 12, and the stone fixing mechanism 4 is connected to the transmission mechanism 2. The transmission adjustment mechanism 3 is fixedly connected to the CNC engraving machine worktable 12, and the auxiliary stone fixing mechanism 5 is fixedly connected to the transmission adjustment mechanism 3. The side of the auxiliary stone fixing mechanism 5 away from the transmission adjustment mechanism 3 is fixedly connected to the stone fixing mechanism 4. After the decorative stone is placed on the CNC engraving machine worktable 12, the drive gear 22 rotates, which in turn drives the driven gear 21 to rotate. The driven gear 21 then drives the spindle 23 to rotate. Powering on the sleeve 40 fixes it to the spindle 23, allowing the spindle 23 to drive the stone fixing mechanism 4 to rotate. During the rotation of the stone fixing mechanism 4, the stone fixing screw 44 can be brought into contact by the swinging of the fixed rod 41 and the movable rod 42. The outer wall of the decorative stone can be fixed by the stone fixing screw 44 to the outer wall of the decorative stone through the screw seat 43, thus completing the fixing operation of the decorative stone; since there are multiple sets of driven gears 21 and the driving gear 22 is rotatably connected to the driving gear connecting plate 34, by holding the adjustment handle 35 to drive the driving gear connecting plate 34 to move inside the driving gear adjustment seat 33, the position of the driving gear 22 can be adjusted and the meshing state of the driving gear 22 and the driven gear 21 can be adjusted. The stone fixing mechanism 4 can be conveniently selected according to the appearance of the decorative stone so that the stone fixing mechanism 4 can better fix the decorative stone. In this process, the selection and use of the stone fixing mechanism 4 is convenient and saves energy consumed in fixing the decorative stone. Source; During the rotation of the stone fixing mechanism 4, the height of the adjusting rod 52 relative to the adjusting fixing frame 51 can be adjusted by adjusting the height bolt 53, which can change the height of the stone fixing mechanism 4. During this process, one end of the adjusting rod 52 is rotatably connected to the support base 49. Not only can the height of the stone fixing mechanism 4 be limited by the adjusting rod 52, but the stability of the stone fixing mechanism 4 during rotation can also be ensured. Since the side of the sleeve 40 is rotatably connected to the adjusting gear 47, and the outer side of the adjusting gear 47 is meshed with the rack 48 fixed to the movable rod 42, the length of the two sets of movable rods 42 can be accurately controlled synchronously. The length error between the two sets of movable rods 42 and the sleeve 40 is small, which can perform better clamping operations on decorative stone.Since both the fixed rod 41 and the movable rod 42 are fixedly connected to one side by a ring 46, and both sets of rings 46 are hooked together by a tension spring 45, and a connecting rib 6 is provided on the opposite side of the tension spring 45, the movable rod 42 can be adjusted more smoothly through the tension spring 45 and the rings 46, and a more stable structure can be maintained to fix the screw seat 43.

[0019] As a further embodiment of the present invention: the transmission mechanism 2 is provided with a driven gear 21 and a driving gear 22; the transmission adjustment mechanism 3 is provided with a base frame 31, a base frame adjustment seat 32, and a driving gear connecting plate 34; the driven gear 21 is rotatably connected to the CNC engraving machine worktable 12; a spindle 23 is fixedly connected to one side of the driven gear 21; the end of the spindle 23 away from the driven gear 21 passes through the CNC engraving machine worktable 12 and is movably connected to the stone fixing mechanism 4; the base frame adjustment seat 32 is fixedly connected to the CNC engraving machine worktable 12; the base frame adjustment seat 32 is movably connected to the base frame 31; a driving gear adjustment seat 33 is fixedly connected to one side of the base frame 31; the driving gear connecting plate 34 is movably connected to the driving gear adjustment seat 33; a servo motor 36 is fixedly connected to one side of the driving gear connecting plate 34; the output end of the servo motor 36 passes through the driving gear connecting plate 34 and is fixedly connected to the driving gear 22; and the driving gear 22 is movably connected to the driven gear 21. As a further embodiment of the present invention: the stone fixing mechanism 4 is provided with a sleeve 40, a fixed rod 41 and a movable rod 42. The sleeve 40 is movably connected to the main shaft 23. The fixed rod 41 is fixedly connected to the sleeve 40. The movable rod 42 is movably connected to the fixed rod 41. A screw seat 43 is fixedly connected to the end of the movable rod 42 away from the fixed rod 41. A stone fixing screw 44 is screwed into the screw seat 43. The sleeve 40 is made entirely of an electromagnet and the electromagnet is electrically connected to an external power source. As a further embodiment of the present invention: the auxiliary stone fixing mechanism 5 includes a height-adjusting fixing frame 51 and a height-adjusting pull rod 52. A support base 49 is fixedly connected to one side of the sleeve 40. The height-adjusting fixing frame 51 is fixedly connected to the base frame 31. The height-adjusting pull rod 52 is embedded inside the height-adjusting fixing frame 51. The height-adjusting fixing frame 51 is movably connected to the height-adjusting pull rod 52 through a height-adjusting bolt 53. One end of the height-adjusting pull rod 52 is movably connected to the support base 49. As a further embodiment of the present invention: an adjusting gear 47 is rotatably connected to one side of the sleeve 40. A rack 48 is meshed with the outer side of the adjusting gear 47. One side of the rack 48 is fixedly connected to the movable rod 42. As a further embodiment of the present invention: an adjusting handle 35 is fixedly connected to one end of the drive gear connecting plate 34 that passes through the drive gear adjusting seat 33. The outer side of the adjusting handle 35 is provided with anti-slip texture. As a further embodiment of the present invention: a ring 46 is fixedly connected to the outer side of both the fixed rod 41 and the movable rod 42, and a tension spring 45 is hooked inside the ring 46. As a further embodiment of the present invention: an anti-detachment seat 24 is fixedly connected to the end of the main shaft 23 away from the driven gear 21, and a silicone sleeve is fixedly connected to the side of the anti-detachment seat 24 near the main shaft 23.As a further embodiment of the present invention: an adjusting gear shaft 7 is provided on one side of the adjusting gear 47, one end of the adjusting gear shaft 7 passes through the adjusting gear 47 and is rotatably connected to the sleeve 40, and the adjusting gear shaft 7 is fixedly connected to the adjusting gear 47. As a further embodiment of the present invention: a connecting rib 6 is provided on one side of the movable rod 42, and the end of the rack 48 away from the adjusting gear 47 is fixedly connected to the movable rod 42 through the connecting rib 6; after the decorative stone is placed on the CNC engraving machine worktable 12, the driving gear 22 is driven to rotate, which drives the driven gear 21 to rotate, and the driven gear 21 rotates, which in turn drives the main shaft 23 to rotate. The sleeve 40 is then energized to fix the sleeve 40 to the main shaft 23, which allows the main shaft 23 to drive the stone fixing mechanism 4 to rotate. During the rotation of the stone fixing mechanism 4, the fixed rod 41 and the movable rod 42 rock together. The stone fixing screw 44 can be positioned to contact the outer wall of the decorative stone, and the screw seat 43 can be used to fix the stone fixing screw 44 to the outer wall of the decorative stone, thus completing the stone fixing operation. Since the driven gear 21 has multiple sets and the driving gear 22 is rotatably connected to the driving gear connecting plate 34, by holding the adjusting handle 35, the driving gear connecting plate 34 can be moved inside the driving gear adjusting seat 33, adjusting the position of the driving gear 22 and the meshing state between the driving gear 22 and the driven gear 21. The stone fixing mechanism 4 can be conveniently selected according to the appearance of the decorative stone, thus enabling the stone fixing machine to... Structure 4 can better fix the decorative stone. The selection and use of the stone fixing mechanism 4 are convenient, and it also saves energy consumed in fixing the decorative stone. During the rotation of the stone fixing mechanism 4, the height of the adjusting rod 52 relative to the adjusting fixing frame 51 can be adjusted by adjusting the height of the adjusting bolt 53. During this process, one end of the adjusting rod 52 is rotatably connected to the support base 49. This not only limits the height of the stone fixing mechanism 4 but also ensures the stability of the stone fixing mechanism 4 during rotation. Because one side of the sleeve 40 is rotatably connected to the adjusting gear 47, the adjustment... A rack 48, which is fixed to the movable rod 42, is meshed with the outer side of the gear 47. Therefore, when controlling the length of the two sets of movable rods 42, precise synchronous control can be achieved. The length error between the two sets of movable rods 42 and the sleeve 40 is small, which can better clamp the decorative stone. Since a ring 46 is fixedly connected to one side of both the fixed rod 41 and the movable rod 42, and both sets of rings 46 are hooked by a tension spring 45, and a connecting rib 6 is provided on the opposite side of the tension spring 45, the movable rod 42 can be smoother during adjustment through the tension spring 45 and the ring 46, and a more stable structure can be maintained to fix the screw seat 43.

[0020] The working principle of the present invention is as follows: In the prior art, when processing decorative stone, the carving operation of decorative stone is often carried out by CNC engraving machine 1. By placing the decorative stone on the worktable of CNC engraving machine 1 and pre-setting and writing the program in CNC engraving machine 1, the working head 14 of CNC engraving machine can work and carve the decorative stone. However, in the existing technology, the CNC engraving machine worktable 12 is mostly flat. When the decorative stone is placed on the CNC engraving machine worktable 12, it needs to be fixed with the help of external equipment. This not only affects the processing efficiency of the decorative stone, but also affects the processing quality of the decorative stone if the external equipment is not fixed stably. There is room for improvement.

[0021] After the decorative stone is placed on the CNC engraving machine worktable 12, the drive gear 22 rotates, which in turn drives the driven gear 21 to rotate. The driven gear 21 then drives the spindle 23 to rotate. The sleeve 40 is powered on and fixed to the spindle 23. The spindle 23 can then drive the stone fixing mechanism 4 to rotate. During the rotation of the stone fixing mechanism 4, the stone fixing screw 44 can contact the outer wall of the decorative stone by the swinging of the fixed rod 41 and the movable rod 42. The stone fixing screw 44 can be fixed to the outer wall of the decorative stone by the screw seat 43, thus completing the fixing operation of the decorative stone. During this process, since the driven gear 21 is provided with multiple sets and the driving gear 22 is rotatably connected to the driving gear connecting plate 34, by holding the adjustment handle 35, the driving gear connecting plate 34 is driven to move inside the driving gear adjustment seat 33, the position of the driving gear 22 can be adjusted and the meshing state of the driving gear 22 and the driven gear 21 can be adjusted. The stone fixing mechanism 4 can be conveniently selected according to the appearance of the decorative stone so that the stone fixing mechanism 4 can better fix the decorative stone. The selection and use of the stone fixing mechanism 4 are convenient during this process, and the energy consumed in fixing the decorative stone is also saved. Furthermore, during the rotation of the stone fixing mechanism 4, the height of the stone fixing mechanism 4 can be changed by adjusting the height of the adjusting rod 52 relative to the adjusting fixing frame 51 through the adjusting bolt 53. During this process, one end of the adjusting rod 52 is rotatably connected to the support base 49. This not only allows the adjusting rod 52 to limit the height of the stone fixing mechanism 4, but also ensures the stability of the stone fixing mechanism 4 during rotation. Since an adjusting gear 47 is rotatably connected to one side of the sleeve 40, and a rack 48 fixed to the movable rod 42 is meshed on the outer side of the adjusting gear 47, precise synchronous control can be achieved when controlling the length of the two sets of movable rods 42. The length error between the two sets of movable rods 42 and the sleeve 40 is small, which can perform better clamping operations on decorative stone. Since both the fixed rod 41 and the movable rod 42 are fixedly connected to one side with a ring 46, and both sets of rings 46 are hooked by a tension spring 45, and a connecting rib 6 is provided on the opposite side of the tension spring 45, the movable rod 42 can be more smooth during the adjustment process through the tension spring 45 and the ring 46, and a more stable structure can be maintained to fix the screw seat 43.

[0022] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A carving device for processing decorative stone, comprising a CNC carving machine (1), a transmission mechanism (2), a transmission adjustment mechanism (3), a stone fixing mechanism (4), and an auxiliary stone fixing mechanism (5); characterized in that: The CNC engraving machine (1) is provided with a CNC engraving machine moving base (11), a CNC engraving machine worktable (12), a CNC engraving machine base (13), and a CNC engraving machine working head (14). The CNC engraving machine working head (14) is fixedly connected to the CNC engraving machine moving base (11). The CNC engraving machine worktable (12) is fixedly connected to the CNC engraving machine base (13). The CNC engraving machine moving base (11) is movably connected to the CNC engraving machine base (13). The transmission mechanism (2) is movably connected to the CNC engraving machine worktable (12). The stone fixing mechanism (4) is movably connected to the transmission mechanism (2). The transmission adjustment mechanism (3) is fixedly connected to the CNC engraving machine worktable (12). The auxiliary stone fixing mechanism (5) is fixedly connected to the transmission adjustment mechanism (3). The side of the auxiliary stone fixing mechanism (5) away from the transmission adjustment mechanism (3) is fixedly connected to the stone fixing mechanism (4). The transmission mechanism (2) is provided with a driven gear (21) and a driving gear (22). The transmission adjustment mechanism (3) is provided with a base frame (31), a base frame adjustment seat (32), and a driving gear connecting plate (34). The driven gear (21) is rotatably connected to the CNC engraving machine table (12). A spindle (23) is fixedly connected to one side of the driven gear (21). The end of the spindle (23) away from the driven gear (21) passes through the CNC engraving machine table (12) and is movably connected to the stone fixing mechanism (4). The base frame adjustment seat (32) is connected to the CNC engraving machine table (12). The engraving machine worktable (12) is fixedly connected, the base frame adjustment seat (32) is movably connected to the base frame (31), the active gear adjustment seat (33) is fixedly connected to one side of the base frame (31), the active gear connecting plate (34) is movably connected to the active gear adjustment seat (33), the servo motor (36) is fixedly connected to one side of the active gear connecting plate (34), the output end of the servo motor (36) passes through the active gear connecting plate (34) and is fixedly connected to the active gear (22), and the active gear (22) is movably connected to the driven gear (21); The stone fixing mechanism (4) is provided with a sleeve (40), a fixed rod (41) and a movable rod (42). The sleeve (40) is movably connected to the main shaft (23). The fixed rod (41) is fixedly connected to the sleeve (40). The movable rod (42) is movably connected to the fixed rod (41). A screw seat (43) is fixedly connected to one end of the movable rod (42) away from the fixed rod (41). A stone fixing screw (44) is screwed into the screw seat (43). One side of the sleeve (40) is rotatably connected to an adjusting gear (47), and the outer side of the adjusting gear (47) is meshed with a rack (48). One side of the rack (48) is fixedly connected to the movable rod (42). Both the fixed rod (41) and the movable rod (42) are fixedly connected to a ring (46) on their outer sides, and a tension spring (45) is hooked inside the ring (46).

2. The carving device for processing decorative stone according to claim 1, characterized in that, The auxiliary stone fixing mechanism (5) includes a height-adjusting fixing frame (51) and a height-adjusting tie rod (52). A support base (49) is fixedly connected to one side of the sleeve (40). The height-adjusting fixing frame (51) is fixedly connected to the base frame (31). The height-adjusting tie rod (52) is embedded inside the height-adjusting fixing frame (51). The height-adjusting fixing frame (51) is movably connected to the height-adjusting tie rod (52) through a height-adjusting bolt (53). One end of the height-adjusting tie rod (52) is movably connected to the support base (49).

3. The carving device for processing decorative stone according to claim 1, characterized in that, The active gear connecting plate (34) is fixedly connected to an adjustment handle (35) at one end that passes through the active gear adjusting seat (33), and the outer side of the adjustment handle (35) is provided with anti-slip texture.

4. The carving device for processing decorative stone according to claim 1, characterized in that, An anti-detachment seat (24) is fixedly connected to the end of the main shaft (23) away from the driven gear (21), and a silicone sleeve is fixedly connected to the side of the anti-detachment seat (24) close to the main shaft (23).

5. The carving device for processing decorative stone according to claim 1, characterized in that, One side of the adjusting gear (47) is provided with an adjusting gear shaft (7). One end of the adjusting gear shaft (7) passes through the adjusting gear (47) and is rotatably connected to the sleeve (40). The adjusting gear shaft (7) is fixedly connected to the adjusting gear (47).

6. The carving device for processing decorative stone according to claim 1, characterized in that, A connecting rib (6) is provided on one side of the movable rod (42), and the end of the rack (48) away from the adjusting gear (47) is fixedly connected to the movable rod (42) through the connecting rib (6).

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