Crystal glass laser internal engraving machine based on positioning structure

Abstract

The present application relates to the technical fields of laser inner carving, and discloses a crystal glass laser inner carving machine based on a positioning structure, which comprises an air floating platform, wherein the air floating platform is arranged on a workbench of the laser inner carving machine, the air floating platform comprises a base, a suspension seat is arranged on the base, the suspension seat is in a disc-shaped cavity structure, a positioning mechanism is connected to the suspension seat, and a balancing mechanism for quickly balancing the suspension seat after suspension is connected to the base. The crystal glass laser inner carving machine based on the positioning structure can effectively solve the problem that the traditional positioning method cannot quickly and accurately place components at ideal carving positions in the prior art, thereby causing a complicated and time-consuming focusing process of the laser inner carving machine. In addition, when the traditional laser inner carving machine works, the vibration generated by the mechanical transmission system and the ground can be transmitted to the workbench, so that the circular crystal glass component is slightly vibrated, and the laser inner carving pattern is deviated and blurred.

Description

Technical Field

[0001] This invention relates to the field of laser engraving technology, and specifically to a crystal glass laser engraving machine based on a positioning structure. Background Technology

[0002] In high-end electronic product manufacturing, as well as in optics and communications, key components made of crystal glass, such as displays, protective glass, and high-precision crystal glass optical components, require crucial quality control and authenticity verification. To prevent counterfeiting, manufacturers commonly use laser engraving for anti-counterfeiting. However, these products and components are generally quite thin, which greatly limits the available space for laser engraving. To achieve high-precision engraving within a limited space, the laser engraving machine must have extremely high precision in controlling the laser beam's focusing position. Even the slightest focusing error can cause the engraved pattern to deviate from the expected position or prevent accurate engraving at a specific depth on the glass plate, seriously affecting product quality and anti-counterfeiting effectiveness.

[0003] There are several problems with the current laser engraving process for round crystal glass components. Existing technology lacks an efficient and precise automatic positioning mechanism in the positioning stage. Traditional positioning methods struggle to quickly and accurately place the round crystal glass component in the ideal engraving position. This not only makes the focusing process of the laser engraving machine cumbersome and time-consuming but also significantly reduces production efficiency, making it difficult to meet the demands of large-scale production. Furthermore, during operation, vibrations generated by the mechanical transmission system and those from the ground are inevitably transmitted to the worktable supporting the round crystal glass component, leading to deviations and blurriness in the engraved pattern. This severely affects the product's appearance and anti-counterfeiting performance, increases the defect rate, and raises production costs. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides a crystal glass laser engraving machine based on a positioning structure. This effectively solves the problem that traditional positioning methods cannot quickly and accurately place components in the ideal engraving position, resulting in a cumbersome and time-consuming focusing process that significantly reduces production efficiency. Furthermore, during operation, vibrations generated by the mechanical transmission system and the ground are transmitted to the worktable, causing minute vibrations in the circular crystal glass components. This leads to deviations and blurring of the laser engraved pattern, severely affecting product quality and anti-counterfeiting effects, and increasing the defect rate and production costs.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention provides a crystal glass laser engraving machine based on a positioning structure, comprising:

[0007] An air-floating platform is set on the worktable of a laser engraving machine. The air-floating platform includes a base, on which a suspension seat is provided. The suspension seat has a disc-shaped cavity structure for supporting crystal glass components. A positioning mechanism is connected to the suspension seat, and a balancing mechanism is connected to the base for quickly balancing the suspension seat after it is levitated.

[0008] The positioning mechanism includes a mounting groove. The upper surface of the suspension seat has a mounting groove, which is cross-shaped and has a mounting base fixedly connected therein. The mounting base is connected to a positioning component, which can be used to automatically center and position the crystal glass element on it when the suspension seat is suspended.

[0009] Furthermore, the balancing mechanism includes a connecting seat, and multiple connecting seats are uniformly fixedly connected to the base along the circumference. A cylindrical mounting cylinder is fixedly connected to the lower end face of the horizontal section of the connecting seat. A pressing seat is connected to the lower end of the cylindrical mounting cylinder, and a pressing ring is fixedly connected to the lower ends of the multiple pressing seats.

[0010] Furthermore, the lower end of the cylindrical mounting cylinder is provided with an inverted conical groove, the upper end of the pressing seat adopts an inverted conical design and is slidably connected in the inverted conical groove, and a magnet is fixedly connected to the upper end of the pressing seat, and a magnet repelling the magnet is fixedly connected to the connecting seat.

[0011] Furthermore, the positioning component includes a push plate, and the mounting base is a cross shape adapted to the cross-shaped mounting groove. In each straight segment of the mounting base, a push plate is rotatably mounted along its length direction via a rotating rod, and the rotating rod is connected to the mounting base via a torsion spring.

[0012] Furthermore, one of the two adjacent push plates located on the same straight segment of the mounting base has a groove at its upper end, and the other has a protrusion at its upper end. The length of the push plate above the rotating rod is less than the length below the rotating rod.

[0013] Furthermore, the lower end of the straight section of the mounting base is rotatably connected to an adjustment frame, and the connection between the adjustment frame and the mounting base is close to the center of the suspension seat. A weight is slidably connected to the adjustment frame.

[0014] Furthermore, a spherical block is fixedly connected to the lower end of the weight via a telescopic rod, and a chassis is rotatably connected to the lower end of the suspension seat. Four arc-shaped guide rails corresponding to the spherical blocks are uniformly fixedly connected to the upper surface of the chassis along the circumference, and the corresponding spherical blocks are slidably connected in the corresponding arc-shaped guide rails.

[0015] Furthermore, a circular seat is rotatably connected to the center of the chassis, and four pushing members corresponding to the adjustment frame are evenly arranged on the circular seat along the circumference. The pushing members are slidably connected to the circular seat.

[0016] Furthermore, the upper end face of the mounting base is uniformly and rollingly connected with multiple balls.

[0017] The technical solution provided by this invention has the following advantages compared with the prior art:

[0018] In this embodiment, the mounting base of the positioning mechanism is cross-shaped. Each straight segment has a push plate rotatably mounted via a rotating rod. The rotating rod is connected to the mounting base via a torsion spring. The lower end of the straight segment of the mounting base is rotatably connected to an adjustment frame. A weight is slidably connected to the adjustment frame. The lower end of the weight is connected to a spherical block via a telescopic rod. The spherical block is slidably connected to the arc-shaped guide rail of the chassis. A pusher is set on the circular seat at the center of the chassis. After the crystal glass element is placed on the suspension seat, the air-floating platform is activated to raise the suspension seat. The pusher removes the restriction on the adjustment frame. The adjustment frame deflects under its own gravity. The weight slides and pushes the lower end of the push plate, causing the upper end of the push plate to move towards the center of the suspension seat. Force is applied simultaneously from four directions to push the crystal glass element to the center position of the suspension seat, thereby achieving automatic centering and positioning of crystal glass elements with a circular outer contour within a certain size range on the suspension seat. Since the crystal glass element is located at the center of the suspension seat, the focusing process of the laser engraving machine does not need to take a long time, significantly improving processing efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a crystal glass laser engraving machine based on a positioning structure according to the present invention;

[0021] Figure 2 This is a schematic diagram of the air-floating platform, positioning mechanism, and balancing mechanism in a crystal glass laser engraving machine based on a positioning structure according to the present invention.

[0022] Figure 3 This is an exploded view of the air-floating platform, positioning mechanism, and balancing mechanism in a crystal glass laser engraving machine based on a positioning structure according to the present invention.

[0023] Figure 4 This is a schematic diagram of the balancing mechanism in a crystal glass laser engraving machine based on a positioning structure according to the present invention.

[0024] Figure 5 This is a schematic diagram of the positioning mechanism in a crystal glass laser engraving machine based on a positioning structure according to the present invention;

[0025] Figure 6 For the present invention Figure 5 A magnified view of a section at point A in the middle;

[0026] Figure 7 This is a partial cross-sectional schematic diagram of a crystal glass laser engraving machine based on a positioning structure according to the present invention;

[0027] Figure 8 This is a schematic diagram of the mounting base and positioning components in a crystal glass laser engraving machine based on a positioning structure according to the present invention.

[0028] The labels in the diagram represent: 1. Air flotation platform; 11. Base; 12. Suspension seat; 2. Positioning mechanism; 21. Mounting seat; 211. Ball bearing; 22. Positioning component; 221. Rotating rod; 2221. Groove; 2222. Protrusion; 222. Push plate; 223. Adjustment frame; 224. Weight; 225. Telescopic rod; 226. Spherical block; 227. Chassis; 228. Arc-shaped guide rail; 229. Round seat; 2210. Pushing component; 3. Balancing mechanism; 31. Connecting seat; 32. Columnar mounting cylinder; 321. Inverted conical groove; 33. Pressing seat; 34. Pressing ring; 35. Magnet one; 36. Magnet two. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] The present invention will be further described below with reference to embodiments.

[0031] Example:

[0032] Please see Figures 1-3 This invention provides a technical solution: a crystal glass laser engraving machine based on a positioning structure, comprising:

[0033] Air-floating platform 1 is set on the worktable of the laser engraving machine. Air-floating platform 1 includes base 11, on which a suspension seat 12 is provided. The suspension seat 12 is a disc-shaped cavity structure used to support crystal glass components. A positioning mechanism 2 is connected to the suspension seat 12, and a balancing mechanism 3 is connected to the base 11 to enable the suspension seat 12 to quickly achieve balance after levitation.

[0034] The positioning mechanism 2 includes a mounting groove. The upper surface of the suspension seat 12 is provided with a mounting groove. The mounting groove is cross-shaped and a mounting base 21 is fixedly connected therein. Multiple balls 211 are evenly rolled on the upper surface of the mounting base 21. A positioning component 22 is connected to the mounting base 21, which can be used to automatically center and position the crystal glass element on the suspension seat 12 when it is suspended.

[0035] In practice, the crystal glass element to be processed is placed on the suspension seat 12 at a position relatively close to the center using a vacuum adsorption device. Under the action of the crystal glass element's own gravity, the part of the positioning mechanism 2 located below the crystal glass element will adapt to change. Then, the air flotation platform 1 is activated, causing the suspension seat 12 and the crystal glass element on it to rise synchronously to a certain height, and after separating from the base 11, they are suspended in the air.

[0036] During the ascent of the suspension seat 12, the lower end of the positioning mechanism 2 will gradually break free from the constraints of the base 11 and adapt accordingly, thereby pushing the crystal glass element to the center position of the suspension seat 12, realizing the automatic centering and positioning of the crystal glass element. During this process, the rolling ball 211 mounted on the upper surface of the mounting base 21 will, on the one hand, prevent the crystal glass element from directly contacting the mounting base 21 and causing damage to the contact surface, and on the other hand, make it easier for the crystal glass element to slide on the mounting base 21, so that the positioning component 22 can push it to the center of the suspension seat 12.

[0037] After the suspension seat 12 rises to a certain height, its upper surface will contact the balancing mechanism 3 and quickly reach a horizontal and stable state under the pressure of the balancing mechanism 3. At this time, the laser system of the laser engraving machine can be used to focus first and then perform laser engraving. In this state, since the suspension seat 12 is suspended in the air and does not contact the base 11, the vibration generated by the mechanical transmission system or from the ground during the engraving process of the laser engraving machine will not be transmitted to the suspension seat 12 and the crystal glass element, thereby ensuring the accuracy and stability of the laser engraving. At the same time, since the crystal glass element is located at the center of the suspension seat 12 under the push of the positioning component 22, the focusing process of the laser engraving machine does not need to take a long time compared with the conventional coarse positioning or non-positioning focusing process, thus significantly improving the processing efficiency.

[0038] It is worth noting that the aforementioned air flotation platform 1 is an existing device. It uses the air flotation principle to suspend the suspension seat 12 and the workpiece together to achieve the purpose of shock reduction and easy operation. The specific implementation process will not be described in the embodiment.

[0039] Please see Figures 2-4The balancing mechanism 3 includes a connecting seat 31, and multiple connecting seats 31 are uniformly fixedly connected to the base 11 along the circumference. A cylindrical mounting cylinder 32 is fixedly connected to the lower end of the horizontal section of the connecting seat 31. A pressing seat 33 is connected to the lower end of the cylindrical mounting cylinder 32. A pressing ring 34 is fixedly connected to the lower end of the multiple pressing seats 33.

[0040] Please see Figure 4 The lower end of the cylindrical mounting cylinder 32 is provided with an inverted conical groove 321. The upper end of the pressing seat 33 adopts an inverted conical design and is slidably connected in the inverted conical groove 321. A magnet 35 is also fixedly connected to the upper end of the pressing seat 33. A magnet 36 that is magnetically repulsive to the magnet 35 is fixedly connected to the connecting seat 31.

[0041] In actual operation, before the suspension seat 12 is suspended, the pressing seat 33 is in a relatively low position. Due to the pressing ring 34 and its own gravity, as well as the repulsive force between magnet 1 35 and magnet 2 36, the conical surface at the upper end of the pressing seat 33 is in contact with the conical surface of the inner wall of the inverted conical groove 321. The pressing ring 34 is in a horizontal state. After the suspension seat 12 is suspended to a certain height under the action of the air flotation platform 1, the upper end of the suspension seat 12 will contact the pressing ring 34 and drive the pressing ring 34 to move upward a small distance, thereby causing the suspension seat 12 to move upward relative to the cylindrical mounting cylinder 32. The inverted conical structure at its upper end will disengage from the inverted conical groove 321. However, due to the repulsive force between magnet 1 35 and magnet 2 36, the upper end of the pressing seat 33 cannot contact magnet 2 36, but will stabilize after rising to a certain height.

[0042] During the above process, the suspension seat 12 quickly reaches a horizontal equilibrium state due to the pressing action of the pressing ring 34, avoiding slight tilting due to the gravity of the crystal glass component. The pressing seat 33 is disengaged from the cylindrical mounting cylinder 32 under the action of the suspension seat 12. Therefore, vibrations from the mechanical transmission system or from the ground during the laser engraving process will not be transmitted to the pressing seat 33 and the pressing ring 34, thus ensuring the stability of the laser engraving process.

[0043] Please see Figure 5 and Figure 6 The positioning component 22 includes a push plate 222. The mounting base 21 is cross-shaped and adapted to the cross-shaped mounting groove. In each straight segment of the mounting base 21, the push plate 222 is rotatably mounted along its length direction via a rotating rod 221. The rotating rod 221 is connected to the mounting base 21 via a torsion spring. Due to the action of the rotating rod 221 and the torsion spring, the push plate 222 is in an inclined state with its lower end relatively close to the center of the mounting base 21 and its upper end relatively far away from the center of the mounting base 21.

[0044] In actual operation, before the suspension seat 12 is suspended, after the crystal glass element is placed on the suspension seat 12, the push plate 222 located below the crystal glass element will tilt further due to the gravity of the crystal glass element, and its upper end height will be lower than the upper end height of the mounting seat 21.

[0045] One of the two adjacent push plates 222 located in the same straight segment of the mounting base 21 has a groove 2221 on its upper end and a protrusion 2222 on its upper end, so as to prevent one of the push plates 222 from further tilting under the pressure of the crystal glass element and interfering with the adjacent push plate 222 that has not been pressed. The length of the push plate 222 above the rotating rod 221 is less than the length of the push plate 222 below the rotating rod 221.

[0046] Please see Figures 5-8 The lower end of the straight section of the mounting base 21 is rotatably connected to an adjustment frame 223, and the connection between the adjustment frame 223 and the mounting base 21 is close to the center of the suspension seat 12. A weight 224 is slidably connected to the adjustment frame 223 along its length direction.

[0047] The lower end of the weight 224 is fixedly connected to a spherical block 226 via a telescopic rod 225. The lower end of the suspension seat 12 is rotatably connected to a chassis 227. Four arc-shaped guide rails 228 corresponding to the spherical blocks 226 are evenly fixedly connected to the upper surface of the chassis 227 along the circumference. The corresponding spherical blocks 226 are slidably connected in the corresponding arc-shaped guide rails 228.

[0048] A circular base 229 is rotatably connected to the center of the chassis 227. Four pushing members 2210 corresponding to the adjusting frame 223 are evenly arranged on the circular base 229 along the circumference. Each pushing member 2210 consists of a Y-shaped frame and a waist-shaped block fixedly connected to the lower end of the Y-shaped frame and slidably connected to the circular base 229. The two forked ends of the Y-shaped frame correspond to the longer straight section of the adjusting frame 223 and adopt a bent design. The bent part of the forked end of the Y-shaped frame is close to the rotatable connection between the adjusting frame 223 and the mounting base 21.

[0049] In actual operation, after the crystal glass element is placed on the suspension seat 12 and before the suspension seat 12 is suspended, the push plate 222 located below the crystal glass element will tilt further due to the gravity of the crystal glass element, and its upper end height will be lower than the upper end height of the mounting seat 21. The push plate 222 that is not pressed by the crystal glass element and is closest to the edge of the crystal glass element will be in an inclined state with its lower end relatively close to the center of the mounting seat 21 and its upper end relatively far away from the center of the mounting seat 21 under the action of the torsion spring and the rotating rod 221.

[0050] Meanwhile, the slider at the lower end of the pusher 2210 abuts against the base 11 and is in a relatively high position in the suspension seat 12. In this state, the upper end of the bend of the Y-shaped frame at the upper end of the pusher 2210 abuts against the lower end of the adjustment frame 223, so that the pusher adjustment frame 223 is in an inclined state with the end closer to the center of the mounting seat 21 being lower and the end further away from the center of the mounting seat 21 being higher. Under the action of its own weight, the weight block 224 is at the lowest point of the adjustment frame 223, that is, the end of the adjustment frame 223 closer to the center of the mounting seat 21. At this time, the telescopic rod 225 is in a retracted state, and the spherical block 226 is always slidably connected in the arc-shaped guide rail 228.

[0051] When the air-float platform 1 is activated, the suspension seat 12 rises to a certain height, causing the lower end of the Y-shaped frame to lose support and slide downward relative to the suspension seat 12. This cancels the abutment effect on the lower end of the adjustment frame 223. Since the bend at the bifurcation end of the Y-shaped frame in the pusher 2210 is located near the rotational connection between the adjustment frame 223 and the mounting base 21, the Y-shaped frame only needs to slide a short distance downward relative to the suspension seat 12 to cancel the restriction effect on the adjustment frame 223 and restore a certain degree of freedom. The reason for this design is that when the suspension seat 12 is raised by air-float, its rising height is limited. If the bend at the bifurcation end of the Y-shaped frame in the pusher 2210 is located far from the rotational connection between the adjustment frame 223 and the mounting base 21, the displacement of the pusher 2210 relative to the suspension seat 12 would be relatively large if the adjustment frame 223 were to regain the same degree of freedom. The suspension seat 12 would need to rise to a relatively high height, and the performance requirements of the air-float platform 1 would be higher.

[0052] When the suspension seat 12 rises to a certain height, the pusher 2210 removes the restriction on the adjustment frame 223, allowing the adjustment frame 223 to regain a certain degree of freedom. Since the connection between the adjustment frame 223 and the mounting base 21 is close to the center of the suspension seat 12, the lever arm of the end away from the center is greater than that of the end near the center. After losing the contact of the pusher 2210, it is in an unbalanced state. Therefore, under its automatic gravity, the end of the adjustment frame 223 away from the center of the suspension seat 12 will automatically deflect downward, transforming into an inclined state where the end near the center of the mounting base 21 is higher and the end away from the center of the mounting base 21 is lower. The weight 224 slides from high to low under its own gravity.

[0053] The push plate 222 located below the crystal glass element is pressed down by the gravity of the crystal glass element, so its upper end is lower than the upper end of the mounting base 21 and its lower end is higher than the lower end of the mounting base 21. As the weight block 224 slides from high to low, it will pass over the push plate 222 located below the crystal glass element until it contacts the lower end of the first push plate 222 that is not pressed by the crystal glass element, and pushes its lower end to move away from the center of the suspension seat 12. This causes the upper end of the first push plate 222 that is not pressed by the crystal glass element to move closer to the center of the suspension seat 12, pushing the crystal glass element closer to the center of the suspension seat 12. Since the length of the push plate 222 above the rotating rod 221 is less than its length below the rotating rod 221, when the corresponding push plate 222 is pushed to rotate around the rotating rod 221 by the weight block 224, the lower end of the push plate 222 is a force-saving lever, and the weight block 224 does not need to apply a lot of force to make the push plate 222 rotate.

[0054] As the weight 224 slides from high to low, it also drives the spherical block 226 to slide in the arc-shaped guide rail 228 via the telescopic rod 225, thereby causing the chassis 227 to rotate. The purpose of this design is to ensure that the displacement of the four weights 224 from high to low is always the same, thereby pushing the upper ends of the four corresponding push plates 222 to move synchronously towards the center of the suspension seat 12. The crystal glass element is pushed to the center of the suspension seat 12 from four directions at the same time, thereby achieving automatic centering and positioning of the crystal glass element with a circular outer contour within a certain size range on the suspension seat 12.

[0055] Once the suspension seat 12 is suspended to a certain height and is in a horizontal and stable state under the pressing action of the pressing ring 34, the lower end of the suspension seat 12 does not contact the base 11, and the upper end of the pressing seat 33 also detaches from the cylindrical mounting cylinder 32 and does not contact it. Therefore, during the laser engraving process, the vibration of the mechanical transmission system or the vibration from the ground cannot be transmitted to the suspension seat 12 and the workpiece, thereby ensuring the stability of the laser engraving process and improving the quality of laser engraving.

[0056] It is worth noting that this crystal glass laser engraving machine based on a positioning structure also has the following advantages:

[0057] Advantage 1: In this embodiment, the suspension seat 12 in the air-floating platform 1 has a disc-shaped cavity structure that can support the crystal glass element. When the air-floating platform 1 is started, the suspension seat 12 rises to a certain height, separates from the base 11, and floats in the air. The upper surface of the suspension seat 12 will contact the pressing ring 34 of the balancing mechanism 3. Under the pressing of the pressing ring 34, it quickly reaches a horizontal and stable state. Since the suspension seat 12 does not contact the base 11 when it is suspended, the vibration generated by the mechanical transmission system or from the ground during the laser engraving process will not be transmitted to the suspension seat 12 and the crystal glass element, thereby ensuring the accuracy and stability of the laser engraving.

[0058] Advantage 2: In this embodiment, the mounting base 21 of the positioning mechanism 2 is cross-shaped. Each straight segment of the base is rotatably mounted with a push plate 222 via a rotating rod 221. After the crystal glass element is placed on the suspension seat 12, the air-floating platform 1 is activated to raise the suspension seat 12. The pusher 2210 removes the restriction on the adjustment frame 223. The adjustment frame 223 deflects under its own weight. The weight 224 slides and pushes the lower end of the push plate 222, causing the upper end of the push plate 222 to move towards the center of the suspension seat 12. The four push plates 222 exert force from four directions simultaneously to push the crystal glass element to the center position of the suspension seat 12, thereby achieving automatic centering and positioning of crystal glass elements with a circular outer contour within a certain size range on the suspension seat 12. Since the crystal glass element is located at the center of the suspension seat 12, the focusing process of the laser engraving machine does not need to take a long time, significantly improving processing efficiency.

[0059] Advantage 3: In this embodiment, multiple rolling balls 211 are evenly connected to the upper surface of the mounting base 21. When the positioning component 22 pushes the crystal glass element to move on the mounting base 21, the rolling balls 211 prevent the crystal glass element from directly contacting the mounting base 21, thus preventing damage to the contact surface. At the same time, the rolling balls 211 make it easier for the crystal glass element to slide on the mounting base 21, which makes it easier for the positioning component 22 to push it to the center of the suspension seat 12, thus improving the smoothness and reliability of the positioning process.

[0060] Advantage 4: In this embodiment, the lower end of the cylindrical mounting cylinder 32 in the balancing mechanism 3 is provided with an inverted conical groove 321. The upper end of the pressing seat 33 adopts an inverted conical design and is slidably connected in the inverted conical groove 321. The upper end of the pressing seat 33 is fixedly connected to a magnet 35. The connecting seat 31 is fixedly connected to a magnet 36 that is magnetically repulsive to the magnet 35. Before the suspension seat 12 is suspended, the pressing seat 33 is in a relatively low position and the pressing ring 34 is horizontal. After the suspension seat 12 is suspended, it drives the pressing ring 34 to move upward a small distance, so that the inverted conical structure at the upper end of the pressing seat 33 is separated from the inverted conical groove 321. Due to the repulsive force of the magnet 35 and the magnet 36, the pressing seat 33 rises to a certain height and then stabilizes. The suspension seat 12 quickly reaches a horizontal balance state under the pressure of the pressing ring 34. Moreover, during the laser engraving process, the vibration will not be transmitted through the pressing seat 33 and the cylindrical mounting cylinder 32, ensuring the stability of the engraving process.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A crystal glass laser engraving machine based on a positioning structure, characterized in that, include: Air-floating platform (1), the air-floating platform (1) is set on the worktable of the laser engraving machine. The air-floating platform (1) includes a base (11). A suspension seat (12) is provided on the base (11). The suspension seat (12) is a disc-shaped cavity structure used to support crystal glass components. A positioning mechanism (2) is connected to the suspension seat (12). A balancing mechanism (3) is connected to the base (11) to make the suspension seat (12) float horizontally. The positioning mechanism (2) includes a mounting groove. The upper surface of the suspension seat (12) is provided with a mounting groove. The mounting groove is cross-shaped and a mounting seat (21) is fixedly connected therein. A positioning component (22) is connected to the mounting seat (21), which can be used to automatically center and position the crystal glass element on the suspension seat (12) when it is suspended. The balancing mechanism (3) includes a connecting seat (31), and multiple connecting seats (31) are uniformly fixedly connected to the base (11) along the circumference. A cylindrical mounting cylinder (32) is fixedly connected to the lower end of the horizontal section of the connecting seat (31). A pressing seat (33) is connected to the lower end of the cylindrical mounting cylinder (32). A pressing ring (34) is fixedly connected to the lower end of the multiple pressing seats (33). The lower end of the cylindrical mounting tube (32) is provided with an inverted conical groove (321). The upper end of the pressing seat (33) adopts an inverted conical design and is slidably connected in the inverted conical groove (321). The upper end of the pressing seat (33) is also fixedly connected with a magnet (35). A magnet (36) that is magnetically repulsive to the magnet (35) is fixedly connected on the connecting seat (31).

2. The crystal glass laser engraving machine based on a positioning structure according to claim 1, characterized in that: The positioning component (22) includes a push plate (222), and the mounting base (21) is a cross shape adapted to the cross-shaped mounting groove. In each straight segment of the mounting base (21), the push plate (222) is rotatably mounted along its length direction by a rotating rod (221). The rotating rod (221) is connected to the mounting base (21) by a torsion spring.

3. The crystal glass laser engraving machine based on a positioning structure according to claim 2, characterized in that: One of the two push plates (222) located in the same straight segment of the mounting base (21) and adjacent to each other has a groove (2221) at its upper end and a protrusion (2222) at its upper end. The length of the push plate (222) above the rotating rod (221) is less than its length below the rotating rod (221).

4. The crystal glass laser engraving machine based on a positioning structure according to claim 1, characterized in that: The lower end of the straight section of the mounting base (21) is rotatably connected to an adjustment frame (223), and the connection between the adjustment frame (223) and the mounting base (21) is close to the center of the suspension seat (12). A weight (224) is slidably connected on the adjustment frame (223).

5. A crystal glass laser engraving machine based on a positioning structure according to claim 4, characterized in that: The lower end of the weight (224) is fixedly connected to a spherical block (226) via a telescopic rod (225). The lower end of the suspension seat (12) is rotatably connected to a chassis (227). Four arc-shaped guide rails (228) corresponding to the spherical block (226) are evenly fixedly connected to the upper surface of the chassis (227) along the circumference. The corresponding spherical block (226) is slidably connected in the corresponding arc-shaped guide rail (228).

6. A crystal glass laser engraving machine based on a positioning structure according to claim 5, characterized in that: A circular seat (229) is rotatably connected to the center of the chassis (227). Four pushers (2210) corresponding to the adjustment frame (223) are evenly arranged on the circular seat (229) along the circumference. The pushers (2210) are slidably connected to the circular seat (229).

7. A crystal glass laser engraving machine based on a positioning structure according to claim 1, characterized in that: The upper end face of the mounting base (21) is uniformly connected with multiple balls (211).

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