Lightweight high-mobility 3D laser engraving machine based on ultrasonic motor driving

Abstract

A lightweight, highly mobile 3D laser engraving machine based on ultrasonic motor drive belongs to the field of equipment technology in the materials manufacturing industry. It includes a lightweight frame axis, a two-axis air suspension system, and a three-axis engraving and lifting system. The lightweight frame axis serves as the equipment base and is installed at the bottom along with the finished product unloading platform. Its internal power frame, based on a simplified skeleton, provides the track and power for the upper components to move back and forth along the Y-axis. The two air suspension axes are mounted on the lightweight frame axis and can move freely along the Y-axis. Their main body is a set of customized air suspension linear guides, used to provide the track and power for the upper components to move left and right along the X-axis, and significantly reduce friction generated during the displacement of the upper components. The three-axis engraving and lifting system is mounted on the air suspension axis. The machine is mounted on two axes and can move freely along the X-axis. Its built-in high-power laser engraving head can move freely up and down along the Z-axis, simultaneously cutting and engraving materials. The entire machine uses a sheet metal shell and internal frame as its base, minimizing the weight of the components. In addition, all power components use ultrasonic motors with stronger positioning and stopping performance, greatly improving the accuracy of the engraving head. The two-axis main body carrying the three axes is an air-suspended linear guide, which greatly reduces the friction of the three axes and further improves the response speed of the engraving head. The entire machine is lightweight and occupies less space, with a faster engraving speed and significantly improved accuracy compared to ordinary engraving machines.

Description

Technical Field

[0001] This invention belongs to the technical field of equipment for material forming and processing, and specifically relates to a 3D laser engraving device. Background Technology

[0002] As people's requirements for the material, appearance, or shape of parts or components in daily production and life increase, and as small-batch, high-requirement production and processing become more frequent, the traditional casting and processing industry is gradually unable to adapt to the increasingly complex mass production of parts. At this time, the demand for 3D laser engraving machines will gradually increase.

[0003] A 3D laser engraving machine is a machine that uses high-temperature melting and cutting to create a finished product. Using a pre-prepared or drawn digital model file, the cutting path is drawn according to a certain cutting mode. The laser generator is then controlled to melt and cut along the specified path to form the corresponding finished product. 3D engraving does not require mechanical processing or molds, nor does it require a huge space for cold cutting and water circulation cooling. It can directly generate objects of any shape from computer graphics data, which greatly shortens the product production cycle and makes the customization and high-end production of parts possible.

[0004] Currently, most mainstream small 3D laser engraving machines on the market still use a closed box + miniaturized three-axis gantry robot carrying the engraving head for 3D engraving. Due to space limitations, 3D laser engraving machines cannot use general-purpose standard-sized industrial motors as a power source, and micro motors do not have sufficient power to control the rapid movement of each axis. In addition, due to the large mass of each axis and the existence of friction between them, the engraving head will experience power loss during movement, and there is a certain probability that it will not be able to move to the precise designated position, resulting in a decrease in the accuracy of the engraved product. If the engraving head movement speed is reduced, i.e., the model engraving speed is slowed down, to adapt to the low-power small motor, a protective cover needs to be installed on the outer layer of the equipment to reduce the airflow speed and prevent dust from mixing in, which further increases the size of the equipment and affects the space utilization of the equipment. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention proposes a lightweight, highly mobile 3D laser engraving machine driven by an ultrasonic motor. This device significantly reduces its weight and utilizes an ultrasonic motor with more precise start-stop stepping as the driving power source, resulting in a faster response and more accurate positioning for the entire device. Furthermore, by replacing the main motion axis with a less frictional air-suspended linear guide, the device can engrave the end of the laser more quickly.

[0006] The technical solution adopted in this invention is: a lightweight, highly mobile 3D laser engraving machine based on ultrasonic motor drive, which can carry an engraving head for high-speed engraving in three-axis directions. The device includes a lightweight frame axis (1) composed of sheet metal and skeleton structure, an air suspension displacement axis (2) to further reduce the friction generated by displacement, and an engraving lifting axis (3) carrying a high-power laser engraving head with manually adjustable height. All power is provided by a customized ultrasonic motor (1.4.1.4).

[0007] Furthermore, the lightweight frame shaft (1) is made up of two sets of power-side protective sheet metal (1.2.1) and motion-side protective sheet metal (1.2.2) as the outer shell. The finished base (1.1) and the power frame (1.4) serve as the support for the protective shell (1.2) to ensure that it will not deform during the operation of the equipment. The alloy feet (1.5) are installed at the bottom of the shell and are slightly adjustable to facilitate the leveling of the base. The laser engraving integrated circuit (1.6) is installed inside the shell through the inner lining feet (1.3) to facilitate the control of the internal motion control and input / output of the entire equipment. At the same time, the inner lining feet (1.3) also isolate the laser engraving integrated circuit (1.6) from the protective shell (1.2) to avoid the rapid conduction and accumulation of heat during the cutting process.

[0008] Furthermore, the power frame (1.4) comprises a "C"-shaped frame consisting of two motion-side frames (1.4.2) and one power-side frame (1.4.1); the center of the power-side frame (1.4.1) is a custom-designed ultrasonic motor (1.4.1.4) with dual-end drive, which is connected to a drive shaft (1.4.1.1) via a coupling (1.4.1.6); the main body of the motion-side frame (1.4.2) is a gear belt assembly; and the two ends have hardened gear pulleys (1. 4.2.2) The high-toughness gear belt (1.4.2.1) is fixed to the end of the drive shaft (1.4.1.1) and the inner wall of the moving side protective sheet metal (1.2.2). The high-toughness gear belt (1.4.2.1) is fitted into the hard gear pulley (1.4.2.2) and completes the linkage. Two parallel and equal guide optical shafts (1.4.2.3) are fixed above and below the belt. Their two ends are fixed to the inner wall of the power side protective sheet metal (1.2.1) to provide running track and maintain the structural stability of the protective shell (1.2).

[0009] Furthermore, the hardened gear pulley (1.4.2.2) on the inner wall of the moving side protective sheet metal (1.2.2) is fixed by the end pulley clamp (1.4.2.4).

[0010] Furthermore, the air suspension displacement axis (2) is installed on the high-toughness gear belt (1.4.2.1) inside the lightweight frame axis (1) and moves along the Y-axis. Its main air suspension rail (2.4) moves freely on the guide optical axis (1.4.2.3) through the pulley mounting plate (2.2) with optical shaft pulleys (2.1) installed at both ends. The pulley mounting plate (2.2) is equipped with a clamping mounting plate (2.6), which clamps a section of the high-toughness gear belt (1.4.2.1) by cooperating with the belt engagement plate (2.5), thereby allowing the high-toughness gear belt (1.4.2.1) to pull the air suspension rail (2.4) to move.

[0011] Furthermore, the air suspension rail (2.4) is filled with gas when it is working, which forces the internal mounting plate slider mechanism to "float" on the internal track, thereby reducing the friction generated by the lifting and engraving three axes mounted on it during movement. At the same time, a custom ultrasonic motor (1.4.1.4) is used to replace the original motor, making the air suspension rail (2.4) run faster and start and stop more precisely.

[0012] Furthermore, in order to prevent the air suspension displacement dual shaft (2) from running excessively, a positioning sheet metal is installed on the pulley mounting plate (2.2), and a set of through-type positioning sensors (2.7) is installed at a suitable position on the inner wall of the moving side protective sheet metal (1.2.2). When the positioning sheet metal passes through the groove sensing area of ​​the through-type positioning sensor (2.7), the air suspension displacement dual shaft (2) mounting plate will stop moving.

[0013] Furthermore, the three-axis engraving lifting mechanism (3) is mounted on the mounting plate slider of the air suspension rail (2.4), wherein the pulley buckle mounting plate (3.2) is clamped on the air suspension rail (2.4) by the track pulley (3.1), the customized laser head lifting fixing frame (3.3) is fixedly connected to the pulley buckle mounting plate (3.2) and moves freely along the X-axis direction; the customized adjustable high-power laser engraving head (3.4) is fixedly connected to the mounting plane of the customized laser head lifting fixing frame (3.3) and the height adjustment in a small range of Z-axis is completed through the Z-axis track inside the customized laser head lifting fixing frame (3.3).

[0014] Furthermore, the emission height of the customized adjustable high-power laser engraving head (3.4) and the emission power of the customized adjustable high-power laser engraving head (3.4) can be changed by manually adjusting the height of the customized laser head lifting and fixing frame (3.3), thereby dealing with specific processing solutions for materials of different thicknesses such as "thick material cutting", "thick material engraving" and "sheet metal (thin material) cutting". Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure of one axis of the lightweight frame in the device of the present invention.

[0017] Figure 3 This is a structural schematic diagram of the protective shell and the power frame in a lightweight frame with one axis.

[0018] Figure 4 This is a structural schematic diagram of the dynamic side skeleton in the dynamic frame.

[0019] Figure 5 This is a schematic diagram of the motion-side skeleton in the dynamic frame.

[0020] Figure 6 This is a schematic diagram of the air-suspended displacement biaxial structure in the device of the present invention.

[0021] Figure 7 This is a schematic diagram of the three-axis engraving lifting mechanism in the device of the present invention.

[0022] In the diagram: 1. Lightweight frame, shaft 1; 1.1. Finished base; 1.2. Protective shell; 1.2.1. Power side protective sheet metal; 1.2.2. Moving side protective sheet metal; 1.3. External extruder; 1.4. Power frame; 1.4.1. Power side skeleton; 1.4.1.1. Shaft 1; 1.4.1.2. Bearing with seat; 1.4.1.3. Bearing seat bracket; 1.4.1.4. Custom ultrasonic motor; 1.4.1.5. Motor bracket; 1.4.1.6. Coupling; 1.4.2. Moving side skeleton; 1.4.2.1. High-toughness gear belt; 1.4.2.2. Hard 1.1. Gear pulley; 1.4.2.3. Guide optical axis; 1.4.2.4. End pulley clamp; 1.5. Alloy foot; 1.6. 3D engraving inherited circuit; 2. Air suspension displacement two-axis; 2.1. Optical axis pulley; 2.2. Pulley mounting plate; 2.3. Motor mounting plate; 2.4. Air suspension linear guide; 2.5. Belt engagement plate; 2.6. Clamping mounting plate; 2.7. Through-type positioning sensor; 2.8. Light-shielding sheet metal; 3. Engraving lifting three-axis; 3.1. Track pulley; 3.2. Pulley mounting buckle plate; 3.3. Custom laser head lifting fixing frame; 3.4. Custom adjustable high-power laser engraving head. Detailed Implementation

[0023] like Figure 1As shown, a lightweight, highly mobile 3D laser engraving machine based on ultrasonic motor drive includes a lightweight frame axis (1), an air suspension displacement axis (2), and an engraving lifting axis (3). The lightweight frame axis (1) is arranged as a platform at the bottom layer and provides the Y-axis running track for the upper components. The air suspension displacement axis (2) is installed on the lightweight frame axis (1) and moves freely on the Y-axis, while providing the X-axis displacement track for the upper components. The engraving lifting axis (3) is installed on the air suspension displacement axis (2) and moves freely in the X-axis direction, while providing the running track for the internal engraving components on the Z-axis.

[0024] like Figure 2 As shown, within the lightweight frame shaft (1), the protective shell (1.2) serves as external protection, the finished base (1.1) and the power frame (1.4) serve as internal skeleton support and are fixed to the inner wall of the protective shell (1.2), the alloy foot (1.5) is installed and fixed to the bottom of the protective shell (1.2), and the laser-engraved integrated circuit (1.6) is installed on the inner wall of the protective shell (1.2) through the inner lining foot (1.3) and has a hole opened on the inner wall for interface installation; like Figure 3 As shown, the protective shell (1.2) includes a power-side protective sheet metal (1.2.1) and a motion-side protective sheet metal (1.2.2). There are two pieces of each of the power-side protective sheet metal (1.2.1) and the motion-side protective sheet metal (1.2.2), which are placed opposite each other and fixed at their ends to form a complete shell. The power frame (1.4) is embedded inside the protective shell (1.2) and includes two sets of motion-side skeletons (1.4.2) and one set of power-side skeletons (1.4.1). The power-side skeleton (1.4.1) is fixed inside the power-side protective sheet metal (1.2.1), and its two ends are connected to the motion-side skeleton (1.4.2). The motion-side skeleton (1.4.2) is fixed to the inner wall of the motion-side protective sheet metal (1.2.2).

[0025] like Figure 4As shown, the power-side frame (1.4.1) includes a drive shaft (1.4.1.1), a bearing housing (1.4.1.2), a bearing housing bracket (1.4.1.3), a custom ultrasonic motor (1.4.1.4), a motor bracket (1.4.1.5), and a coupling (1.4.1.6). The custom ultrasonic motor (1.4.1.4) is mounted on the motor bracket (1.4.1.5) and its output ends are parallel to the X-axis direction. There are two drive shafts (1.4.1.1), each passing through and mounted on the bearing housing bracket (1.4.1). 3) The bearing (1.4.1.2) is installed in the center hole of the bearing seat and can rotate freely along its own axis. The bearing seat bracket (1.4.1.3) and the motor bracket (1.4.1.5) are both installed in a suitable position on the inner arm of the protective sheet metal (1.2.1) on the power side, so that the output end of the customized ultrasonic motor (1.4.1.4) and the two single-axis drive shafts (1.4.1.1) are kept in a concentric state. A coupling (1.4.1.6) is used to fix one section of the single-axis drive shaft (1.4.1.1) to the output end of the customized ultrasonic motor (1.4.1.4).

[0026] like Figure 5 As shown, the motion-side frame (1.4.2) consists of two sets, including a high-strength gear belt (1.4.2.1), a hardened gear pulley (1.4.2.2), a guide shaft (1.4.2.3), and an end pulley clamp (1.4.2.4). The hardened gear pulley (1.4.2.2) is fixed to the end of the power-side frame (1.4.1), i.e., the end of the drive shaft (1.4.1.1) at both ends. The hardened gear pulley (1.4.2.2) on the other side is embedded in the end pulley clamp (1.4.2.4) and can rotate freely along its own axis. The end pulley clamp (1.4... .2.4) is fixed to the inner wall of the moving side protective sheet metal (1.2.2), and the axes of the hard gear pulleys (1.4.2.2) at both ends are collinear and parallel to the Y-axis; the high-toughness gear belt (1.4.2.1) is fitted into the hard gear pulleys (1.4.2.2) at both ends and completes the linkage; there are two guide optical shafts (1.4.2.3), arranged one above the other and fixed to the inner wall of the power side protective sheet metal (1.2.1) at both ends; the two guide optical shafts (1.4.2.3) and the high-toughness gear belt (1.4.2.1) are parallel to each other and in the same vertical plane.

[0027] like Figure 6As shown, the air-suspended displacement dual-axis (2) includes an optical axis pulley (2.1), a pulley mounting plate (2.2), a motor mounting plate (2.3), an air-suspended linear guide (2.4), a belt engagement plate (2.5), a clamping mounting plate (2.6), a through-type positioning sensor (2.7), and a light-shielding sheet metal (2.8). A pulley mounting plate (2.2) is installed at each end of the air-suspended linear guide (2.4). Three sets of optical axis pulleys (2.1) are mounted on the pulley mounting plate (2.2), arranged in a top-bottom and bottom-top configuration on the same side of the pulley mounting plate (2.2), and each can rotate freely along its own axis. The optical axis pulleys (2.1) are embedded between two sets of guide optical axes (1, 4, 2, 3) and can rotate freely along the guide axes. The optical axis (1.4.2.3) moves freely in the direction of the optical axis; the clamping mounting plate (2.6) is mounted on the pulley mounting plate (2.2) and is on the same side as the optical axis pulley (2.1) and closely attached to the high-toughness gear belt (1.4.2.1); the belt engagement plate (2.5) is embedded in the high-toughness gear belt (1.4.2.1) and is fixed to the clamping mounting plate (2.6) by the set screw; the light-shielding sheet metal (2.8) is also mounted on the pulley mounting plate (2.2) and is on the same side as the optical axis pulley (2.1); the through-type positioning sensor (2.7) is mounted on the inner wall of the moving side protective sheet metal (1.2.2) and ensures that the protrusion of the light-shielding sheet metal (2.8) passes exactly through its internal recessed sensing area.

[0028] like Figure 7 As shown, the three-axis engraving lifting system (3) includes track pulleys (3.1), pulley buckle mounting plate (3.2), a customized laser head lifting fixing frame (3.3), and a customized adjustable high-power laser engraving head (3.4); four sets of track pulleys (3.1) are installed on the pulley buckle mounting plate (3.2) and connected in a two-up, two-down layout, and each track pulley (3.1) can rotate along its own axis; the track pulleys (3.1) are engaged with the side rails of the air suspension linear rail (2.4), This allows the pulley buckle mounting plate (3.2) to move freely along the air suspension rail (2.4); the customized laser head lifting and fixing frame (3.3) is installed on the pulley buckle mounting plate (3.2), on the back of the track pulley (3.1), and the overall running direction is vertically downward; the customized adjustable high-power laser engraving head (3.4) is fixedly connected to the internal mounting surface of the customized laser head lifting and fixing frame (3.3), and is installed on the central axis of the customized laser head lifting and fixing frame (3.3) and keeps moving vertically downward.

[0029] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A lightweight, highly mobile 3D laser engraving machine based on ultrasonic motor drive, characterized in that, The device includes a lightweight frame axis (1), a two-axis air suspension displacement system (2), and a three-axis engraving and lifting system (3); wherein the lightweight frame axis (1) serves as the base and is in direct contact with the working plane, using sheet metal as the outer shell and an optical axis as the skeleton or track, thereby significantly reducing the mass of the base; the two-axis air suspension displacement system (2) is directly connected to the power output end of the lightweight frame axis (1) and moves freely along the X-axis direction; Its main body uses a custom-sized air-suspended linear guide, so that the three-axis carving lifting (3) is slightly suspended in the internal track of the two-axis air-suspended displacement (2), thereby further reducing the friction generated when the three-axis carving lifting (3) moves; the three-axis carving (3) is connected to the two-axis air-suspended displacement (2), and its own carving head can take into account both cutting and carving materials; the whole set of equipment uses ultrasonic motors as the power source, making the start-up and positioning of the internal movement of the equipment more accurate; the three axes use optical axes as the main frame as much as possible to reduce the overall mass and thus accelerate the displacement speed of the axes.

2. The lightweight, highly mobile 3D laser engraving machine based on ultrasonic motor drive according to claim 1, characterized in that, The lightweight frame shaft (1) includes a finished product base (1.1), a protective shell (1.2), an external extruder (1.3), a power frame (1.4), alloy feet (1.5), and a laser engraving integrated circuit (1.6). The protective shell (1.2) includes a power-side protective sheet metal (1.2.1) and a motion-side protective sheet metal (1.2.2), which are arranged opposite each other and spliced ​​together to form a complete sheet metal shell. The finished product base (1.1) is in direct contact with the ground and serves as a support platform for the engraved finished product. It is a flat, high-temperature resistant coated metal honeycomb panel, placed on the workbench and kept horizontal on the top surface. The honeycomb panel structure also facilitates faster heat dissipation of the body. The power frame (1.4) is embedded in the protective shell (1.2). The inner frame serves as a support to prevent deformation and provides a displacement track and displacement power source for the upper components. The alloy feet (1.5) are installed on the bottom sides of the power-side protective sheet metal (1.2.1) and the motion-side protective sheet metal (1.2.2) and are slightly adjustable to keep the entire equipment level on the working plane. The laser engraving integrated circuit (1.6) is installed inside the power-side protective sheet metal (1.2.1) and is isolated from the inner wall of the power-side protective sheet metal by the inner lining feet to avoid heat. The power-side protective sheet metal (1.2.1) has an opening on its surface to expose the input port. The laser engraving integrated circuit (1.6) is used to control the internal movements of the entire equipment and supports custom input and output motion programs.

3. A lightweight frame with a single axis (1) according to claim 2, characterized in that, The power frame (1.4) includes a power-side frame (1.4.1) and two motion-side frames (1.4.2). The power-side frame (1.4.1) provides power to the displacement mechanisms within the motion-side frames (1.4.2) on both sides. The power-side frame (1.4.1) includes a drive shaft (1.4.1.1), a bearing seat (1.4.1.2), a bearing seat bracket (1.4.1.3), a custom ultrasonic motor (1.4.1.4), and a motor bracket (1.4.1.4). 1.4.1.5) and coupling (1.4.1.6); the customized ultrasonic motor (1.4.1.4) is a double-ended output motor, which is fixedly connected to the bottom surface of the inner wall of the power-side protective sheet metal (1.2.1) through the motor bracket (1.4.1.5), and the output shafts at both ends are connected to the two single-shaft drive shafts (1.4.1.1) through the coupling (1.4.1.6); the outer sides of the two single-shaft drive shafts (1.4.1.1) both pass through the bearing seat bracket (1.4.1.5). The bearing (1.4.1.2) on 1.4.1.3) is used to ensure the stability of the overall frame structure and facilitate connection with the outer moving side frame (1.4.2); the main body of the moving side frame (1.4.2) is a lightweight pulley structure, which includes a high-toughness gear belt (1.4.2.1), a hardened gear pulley (1.4.2.2), a guide shaft (1.4.2.3), and an end pulley clamp (1.4.2.4); the two sides of the moving side frame (1.4.2) have the same structure and function; in a set of moving side frames (1.4.2): there are two hardened gear pulleys (1.4.2.2), one of which is connected to the outer side of the drive shaft (1.4.1.1). One side section is fixedly connected, and the other is embedded in the end pulley clamp (1.4.2.4) and rotates freely. The end pulley clamp (1.4.2.4) is fixedly connected to the inner wall of the moving side protective sheet metal (1.2.2). The high-toughness gear belt (1.4.2.1) is embedded in the hard gear pulleys (1.4.2.2) at both ends and completes normal linkage. There are two guide optical shafts (1.4.2.3) in the skeleton on one side, which are embedded in parallel inside the protective shell (1.2) and fixed at both ends to the inner walls of the power side protective sheet metal (1.2.1) on both sides. The guide optical shafts (1.4.2.3) on both sides also serve as the displacement track of the air suspension displacement axis (2) for it to move freely along the Y-axis.

4. A lightweight, highly mobile 3D laser engraving machine based on ultrasonic motor drive according to claim 1, characterized in that, The air-suspended displacement dual shaft (2) is pulled by the high-toughness gear belt (1.4.2.1) and moves along the guide optical axis (1.4.2.3); the air-suspended displacement dual shaft (2) includes an optical axis pulley (2.1), a pulley mounting plate (2.2), a motor mounting plate (2.3), an air-suspended linear guide (2.4), a belt engagement plate (2.5), a clamping mounting plate (2.6), a through-type positioning sensor (2.7), and a light-shielding sheet metal (2.8); the air-suspended linear guide (2.4) 4) This is a custom-made product, with a length approximately equal to the overall length of the power-side frame (1.4.1). Each end of the frame has a pulley mounting plate (2.2). Three optical shaft pulleys (2.1) are mounted on the pulley mounting plate (2.2) in a "one up, two down" arrangement. Each optical shaft pulley (2.1) can rotate freely along its own axis on the pulley mounting plate (2.2). The clamping mounting plate (2.6) is mounted on the motor mounting plate (2.3) and is connected to the high-toughness gear belt. (1.4.2.1) The smooth surfaces are tightly fitted; one side of the clamping mounting plate (2.6) is toothed and is tightly fitted with the toothed surface of the high-toughness gear belt (1.4.2.1), and is fixedly connected to the clamping mounting plate (2.6) by a set screw passing through the high-toughness gear belt (1.4.2.1); the customized ultrasonic motor (1.4.1.4) is fixedly connected to the bottom of the air suspension rail (2.4) through the motor mounting plate (2.3) and replaces the original power source motor to drive the air suspension rail. The track (2.4) moves inside; the light-shielding sheet metal (2.8) is installed on the motor mounting plate (2.3), and the through-type positioning sensor (2.7) is installed on the inner wall of the moving side protective sheet metal (1.2.2) on both sides according to the actual displacement length. The light-shielding sheet metal (2.8) moves along the Y-axis with the air suspension displacement axis (2). When it passes through the groove sensing area of ​​the through-type positioning sensor (2.7), the air suspension displacement axis (2) automatically stops running.

5. A lightweight, highly mobile 3D laser engraving machine based on ultrasonic motor drive according to claim 1, characterized in that, The engraving lifting three-axis (3) is installed on the internal track of the air suspension rail (2.4) and moves freely along the X-axis; it includes a track pulley (3.1), a pulley buckle mounting plate (3.2), a customized laser head lifting fixing frame (3.3), and a customized adjustable high-power laser engraving head (3.4); four track pulleys (3.1) are installed on the pulley buckle mounting plate (3.2) in a "two up, two down" arrangement, and the track pulleys (3.1) can rotate freely along their own axis; the pulley buckle mounting plate (3.2) is clamped to the side track of the air suspension rail (2.4) by the track pulleys (3.1) and is driven by the internal customized ultrasonic motor (1.4.1.4) to move freely along the X-axis; the customized laser head lifting fixing frame (3.3) is a track platform with manually adjustable height, installed on the back of the pulley buckle mounting plate (3.2) and moves with it; The air suspension rail (2.4) reduces the friction of the three-axis engraving lifting mechanism (3) moving along the X-axis. Therefore, the customized laser head lifting and fixing frame (3.3) runs on the side rail of the air suspension rail (2.4) in a "slightly floating" state. The customized adjustable high-power laser engraving head (3.4) is a customized laser generator with adjustable power. By adjusting the power intensity of the laser in advance, the material can be engraved or cut.

6. The carving lifting three-axis (3) according to claim 5, characterized in that, The customized laser head lifting and fixing frame (3.3) has an adjustable knob on top, which can be rotated to control the internal mounting surface platform to move up and down along the Z-axis. The customized adjustable high-power laser engraving head (3.4) is fixed to the mounting surface of the customized laser head lifting and fixing frame (3.3) and keeps the laser emission direction vertically downward. The customized laser head lifting and fixing frame (3.3) can be manually adjusted to control the relative height between the customized adjustable high-power laser engraving head (3.4) and the finished product tray to cope with cutting or engraving materials of different thicknesses.

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