Laser engraving machine for gold ornaments

Abstract

The gold ornament laser engraving machine comprises a machine frame and a moving mechanism, the machine frame is provided with a bearing face used for loading workpieces, and the moving mechanism comprises a first translation structure and a second translation structure which slide in the length direction and the width direction of the machine frame respectively. The first translation structure clamps the first slide rail group through rollers, the second translation structure clamps the second slide rail group through rollers, and the first translation structure and the second translation structure are orthogonally distributed to form two-dimensional planar motion. A laser engraving device is arranged on the second translation structure, directly faces the bearing surface and is used for engraving a workpiece, and according to the design, a sliding rail set is clamped through rollers, sliding friction is replaced with rolling friction, and moving resistance is reduced; the orthogonally-distributed sliding rail sets prevent a single sliding rail from bearing multidirectional loads, and movement shaking is reduced. The multi-point contact between the roller and the slide rail enhances the rigidity, and ensures that the laser engraving device keeps a stable track at a high speed or in fine adjustment. The design is suitable for high-precision engraving scenes such as gold ornaments.

Description

Technical Field

[0001] This application relates to the field of engraving, and more particularly to a laser engraving machine for gold jewelry. Background Technology

[0002] Traditional laser engraving machines for gold jewelry typically employ a fixed structure or a simple moving mechanism to position the laser head and perform engraving operations. During the engraving process, the movement of the laser head often relies on a motor-driven lead screw or guide rail system. While these systems achieve basic movement, in practical applications, the high friction between the lead screw and guide rail leads to uneven movement, especially during high-precision engraving, which can easily result in vibration or deviation, affecting engraving quality. Furthermore, the moving mechanism of traditional equipment is complex, has high maintenance costs, and is prone to wear and tear after prolonged use, further reducing the stability and lifespan of the equipment.

[0003] To improve the smoothness of movement and reduce friction in laser engraving machines, existing technologies often employ a design using a lead screw as the sliding element. The lead screw system is driven by a motor to rotate the lead screw, which in turn moves the laser head along a guide rail. This design can achieve relatively precise positioning to a certain extent, but due to the large contact area between the lead screw and the nut, friction remains high, especially during high-speed movement or prolonged operation. Friction leads to heat accumulation, which in turn affects the accuracy and stability of the equipment. Furthermore, the lead screw system has a complex structure, making installation and maintenance difficult, and it is prone to wear under high loads, further limiting its application in high-precision engraving.

[0004] Although laser engraving machines using lead screws as sliding elements have improved movement precision, they still have significant drawbacks. First, the high friction of the lead screw system leads to uneven movement, especially during high-speed engraving, which can cause vibration or deviation, affecting engraving quality. Second, the lead screw system has a complex structure, high maintenance costs, and is prone to wear after prolonged use, further reducing the stability and lifespan of the equipment. Furthermore, the installation and debugging process of the lead screw system is cumbersome, increasing the difficulty of using the equipment. Utility Model Content

[0005] The purpose of this application is to provide a laser engraving machine for gold jewelry that moves smoothly and has low friction.

[0006] According to one aspect of this application, a laser engraving machine for gold jewelry is provided, characterized in that it comprises:

[0007] A frame and a moving mechanism movably connected to the frame, wherein the frame has a bearing surface formed at the end facing the moving mechanism for loading workpieces;

[0008] The moving mechanism includes a first translation structure and a second translation structure. Both the first translation structure and the second translation structure are slidably connected to the frame. When viewed perpendicular to the bearing surface, a first slide rail group is provided at one end of the frame along its length direction, and a second slide rail group is provided at the other end along its width direction. The rollers of the first translation structure hold the first slide rail group to slide along the length direction of the first slide rail group, and the rollers of the second translation structure hold the second slide rail group to slide along the length direction of the second slide rail group.

[0009] The second translation structure is equipped with a laser engraving device, which faces the bearing surface and is used to engrave the workpiece.

[0010] In at least one embodiment of this application, the frame includes a sliding frame and a sliding column. A straight line direction perpendicular to the bearing surface is defined as a first direction. When viewed along the first direction, the sliding frame and the sliding column are arranged side by side, and the first slide rail group and the second slide rail group are sequentially arranged on the sliding frame and the sliding column. One end of the first translation structure is slidably connected to the sliding frame, and the other end is fixed to the sliding column. The second translation structure is slidably connected to the sliding column.

[0011] In at least one embodiment of this application, the second translation structure includes two parallel connecting plates and a second pulley group. The second pulley group is provided at one end of the connecting plate near the sliding frame, and the end away from the sliding frame is fixedly connected to the sliding column. When viewed along the direction perpendicular to the first direction, both the first slide rail group and the second slide rail group are double slide rail structures symmetrically distributed in the first direction.

[0012] In the first direction, the second pulley group clamps the second slide rail group so that the second translation structure slides on the second slide rail group.

[0013] In at least one embodiment of this application, the first translation structure includes two parallel first support plates, a second support plate, and a first pulley group connected between the first support plates and the second support plate. In the first direction, the first pulley group clamps the first slide rail group so that the first translation structure slides on the first slide rail group.

[0014] In at least one embodiment of this application, the laser engraving device is provided on the end face of the first support plate away from the second support plate, and in the first direction, the output end of the laser engraving device faces the workpiece.

[0015] In at least one embodiment of this application, a first driving device is provided on the end face of the second support plate opposite to the first support plate. The first driving device is connected to the first pulley group to drive the first pulley group to slide in the length direction of the first slide rail group.

[0016] In at least one embodiment of this application, the second translation structure further includes a second driving structure, wherein the transmission rod of the second driving structure passes through the connecting plate in a direction perpendicular to the first direction and is connected to the second pulley group in a driving connection to drive the second pulley group to slide in the length direction of the second slide rail.

[0017] In at least one embodiment of this application, the frame further includes a support plate for carrying a workpiece. The support plate is disposed within the sliding frame, and one end face of the support plate abuts against the workpiece to form the support surface. When viewed along the first direction, the support surface and the inner wall of the sliding frame form a receiving groove, which is used to clamp the workpiece.

[0018] In at least one embodiment of this application, the sliding frame is made of stainless steel.

[0019] In at least one embodiment of this application, the sliding column is made of stainless steel.

[0020] The aforementioned gold jewelry laser engraving machine improves its movement stability and reduces friction through a roller-clamped slide rail assembly structure and an orthogonal layout of the first and second translational structures. Specifically, the first translational structure's rollers clamp the first slide rail assembly along the length of the frame, while the second translational structure's rollers clamp the second slide rail assembly along the width of the frame. The two assemblyes use rolling friction instead of the sliding friction of traditional lead screws, significantly reducing movement resistance. Simultaneously, the first and second slide rail assemblies are orthogonally distributed in the projection direction of the vertical bearing surface, forming a two-dimensional planar motion division structure, preventing a single slide rail from bearing multi-directional loads and further reducing motion vibration. Furthermore, the clamping connection between the rollers and slide rails enhances the rigidity of the moving mechanism through multi-point contact guidance, ensuring a stable trajectory during high-speed or fine-tuning processes. This synergistic design reduces friction loss and heat accumulation, and achieves high-precision, stable movement through directional motion and rolling support, making it particularly suitable for high-precision engraving scenarios such as gold jewelry. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a laser engraving machine for gold jewelry;

[0023] Figure 2 This is the main view of the moving mechanism;

[0024] Figure 3 This is the front view of the first translation structure;

[0025] Figure 4 AA is a cross-sectional view of the first translational structure;

[0026] Figure 5 This is the left view of the first translation structure;

[0027] Figure 6 This is a top view of the frame.

[0028] Explanation of icon numbers:

[0029] 1. Frame; 2. Moving mechanism; 3. Bearing surface; 4. Workpiece; 5. First translation structure; 6. Second translation structure; 7. First slide rail group; 8. Second slide rail group; 9. Roller; 10. Laser engraving device; 11. Sliding frame; 12. Sliding column; F, First direction; 14. Connecting plate; 15. Second pulley group; 16. First support plate; 17. Second support plate; 18. First pulley group; 19. First driving device; 20. Second driving structure; 21. Transmission rod; 22. Bearing plate; 23. Receiving groove; 100. A laser engraving machine for gold jewelry. Detailed Implementation

[0030] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0031] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] Please refer to Figure 1 - Figure 6 One embodiment of this application provides a gold jewelry laser engraving machine 100, comprising:

[0034] A frame 1 and a moving mechanism 2 movably connected to the frame 1, wherein the frame 1 has a bearing surface 3 formed at the end facing the moving mechanism 2 for loading workpiece 4;

[0035] The moving mechanism 2 includes a first translation structure 5 and a second translation structure 6. Both the first translation structure 5 and the second translation structure 6 are slidably connected to the frame 1. When viewed perpendicular to the bearing surface 3, a first slide rail group 7 is provided at one end of the frame 1 along its length direction, and a second slide rail group 8 is provided at the other end along its width direction. The rollers 9 of the first translation structure 5 clamp the first slide rail group 7 to slide along the length direction of the first slide rail group 7, and the rollers 9 of the second translation structure 6 clamp the second slide rail group 8 to slide along the length direction of the second slide rail group 8.

[0036] The second translation structure 6 is equipped with a laser engraving device 10, which faces the bearing surface 3 and is used to engrave the workpiece 4.

[0037] Furthermore, the high precision and low friction of gold jewelry engraving are achieved through the coordinated design of the frame 1 and the moving mechanism 2. Its core feature lies in the fact that the first translation structure 5 and the second translation structure 6 respectively clamp the first slide rail group 7 in the length direction and the second slide rail group 8 in the width direction of the frame 1 via rollers 9. The two slide rail groups are orthogonally distributed in the projection direction of the vertical bearing surface 3, forming a two-dimensional motion decomposition structure: the first translation structure 5 slides along the first slide rail group 7 to achieve X-axis movement, and the second translation structure 6 slides along the second slide rail group 8 to achieve Y-axis movement. Both independently... To withstand loads in the direction of motion and avoid increased friction or trajectory deviation caused by multi-directional force coupling, the design of the roller 9 clamping slide rail assembly uses rolling friction instead of the sliding friction of the traditional lead screw. At the same time, the clamping connection between the roller 9 and the slide rail is guided by multi-point contact. For example, each slide rail assembly consists of two parallel slide rails, and the roller 9 assembly contacts the inner and outer sides of the slide rails in a symmetrical clamping manner to form a closed-loop constraint, which enhances the rigidity and anti-eccentric load capacity of the moving mechanism 2. The orthogonal layout of the slide rail assembly further optimizes the space utilization rate and is suitable for high-precision scenarios such as micro-carving of gold jewelry.

[0038] In one specific embodiment, the frame 1 includes a sliding frame 11 and a sliding column 12. The straight direction perpendicular to the bearing surface 3 is defined as the first direction F. When viewed along the first direction F, the sliding frame 11 and the sliding column 12 are arranged side by side, and the first slide rail group 7 and the second slide rail group 8 are sequentially arranged on the sliding frame 11 and the sliding column 12. One end of the first translation structure 5 is slidably connected to the sliding frame 11, and the other end is fixed to the sliding column 12. The second translation structure 6 is slidably connected to the sliding column 12.

[0039] Furthermore, the frame 1 is a combination structure of a sliding frame 11 and a sliding column 12. The sliding frame 11 is arranged along the length of the frame 1 and carries the first slide rail group 7, while the sliding column 12 is arranged along the width and carries the second slide rail group 8. The two are arranged side by side and linked by a first translation structure 5: one end of the first translation structure 5 is slidably connected to the sliding frame 11 and clamps the first slide rail group 7 through a first pulley group 18, while the other end is fixed to the sliding column 12. The second translation structure 6 clamps the second slide rail group 8 on the sliding column 12 through a second pulley group 15. This design uses a split-type load-bearing frame to transfer the X / Y axis motion load to the sliding frame 11 and the sliding column 12 respectively, avoiding a single frame bearing composite stress. For example, when the X-axis moves, the driving force of the first translation structure 5 is transferred to the second translation structure 6 through the sliding column 12, while when the Y-axis moves, the second translation structure 6 slides directly on the sliding column 12. The two reduce the risk of structural deformation through the separate slide rail group.

[0040] In one specific embodiment, the second translation structure 6 includes two parallel connecting plates 14 and a second pulley group 15. The second pulley group 15 is provided at one end of the connecting plate 14 near the sliding frame 11, and the end away from the sliding frame 11 is fixedly connected to the sliding column 12. When viewed along the direction perpendicular to the first direction F, the first slide rail group 7 and the second slide rail group 8 are both double slide rail structures symmetrically distributed in the first direction F.

[0041] In the first direction F, the second pulley group 15 clamps the second slide rail group 8 so that the second translation structure 6 slides on the second slide rail group 8.

[0042] Furthermore, the two parallel connecting plates 14 of the second translation structure 6 are provided with a second pulley group 15 at one end near the sliding frame 11, and the other end is fixed to the sliding column 12. The second slide rail group 8 is a double slide rail symmetrically distributed in the first direction F. The second pulley group 15 achieves four-point contact guidance by clamping the double slide rail. This design balances the lateral force during the movement through the symmetrical slide rail group. For example, when the laser engraving device 10 performs curve engraving, the symmetrical pulley group can offset the lateral inertial force generated by the acceleration change and prevent the slide rail from wearing on one side. At the same time, the parallel layout of the connecting plates 14 forms a rigid truss structure, which enhances the bending resistance of the second translation structure 6. Moreover, the redundant design of the double slide rail can still maintain basic functions when one side of the slide rail fails, thus improving the reliability of the equipment.

[0043] In one specific embodiment, the first translation structure 5 includes two parallel first support plates 16 and second support plates 17, and a first pulley group 18 connected between the first support plate 16 and the second support plate 17. In the first direction F, the first pulley group 18 clamps the first slide rail group 7 so that the first translation structure 5 slides on the first slide rail group 7.

[0044] The first translation structure 5 is further defined as including two parallel first support plates 16 and second support plates 17, and a first pulley group 18 connected between them. The first pulley group 18 clamps the first slide rail group 7 to achieve sliding. This design, through the parallel arrangement of the first support plates 16 and second support plates 17 and the clamping connection of the first pulley group 18, further optimizes the force distribution of the first translation structure 5, reduces friction and vibration during movement, and the rigid connection of the support plates enhances the stability of the structure. The beneficial effects include improved movement smoothness, reduced friction, and extended equipment service life.

[0045] In one specific embodiment, the laser engraving device 10 is provided on the end face of the first support plate 16 away from the second support plate 17, and the output end of the laser engraving device 10 is facing the workpiece 4 in the first direction F.

[0046] Furthermore, a first driving device 19 is provided on the end face of the second support plate 17 opposite to the first support plate 16. The first driving device 19 is connected to the first pulley group 18 to drive the first pulley group 18 to slide. This design optimizes the power transmission path and reduces energy loss by directly setting the first driving device 19 on the second support plate 17. At the same time, the direct connection between the driving device and the pulley group improves the transmission efficiency. The beneficial effects include improved transmission efficiency, reduced energy loss and enhanced equipment response speed.

[0047] In one specific embodiment, a first driving device 19 is provided on the end face of the second support plate 17 opposite to the first support plate 16. The first driving device 19 is connected to the first pulley group 18 to drive the first pulley group 18 to slide in the length direction of the first slide rail group 7.

[0048] Furthermore, a first driving device 19 is provided on the end face of the second support plate 17 opposite to the first support plate 16. The first driving device 19 is connected to the first pulley group 18 to drive the first pulley group 18 to slide. This design optimizes the power transmission path and reduces energy loss by directly setting the first driving device 19 on the second support plate 17. At the same time, the direct connection between the driving device and the pulley group improves the transmission efficiency. The beneficial effects include improved transmission efficiency, reduced energy loss and enhanced equipment response speed.

[0049] In one specific embodiment, the second translation structure 6 further includes a second driving structure 20, wherein the transmission rod 21 of the second driving structure 20 passes through the connecting plate 14 in a direction perpendicular to the first direction F and is connected to the second pulley group 15 in a transmission connection to drive the second pulley group 15 to slide in the length direction of the second slide rail.

[0050] Furthermore, the second translation structure 6 also includes a second drive structure 20. The transmission rod 21 of the second drive structure 20 passes through the connecting plate 14 and is connected to the second pulley group 15 to drive the second pulley group 15 to slide. This design further optimizes the power transmission path and reduces energy loss in intermediate links through the direct transmission between the second drive structure 20 and the second pulley group 15. At the same time, the through design of the transmission rod 21 enhances the compactness of the structure. The beneficial effects include improving transmission efficiency, simplifying the structure and enhancing the stability of equipment operation.

[0051] In one specific embodiment, the frame 1 further includes a support plate 22 for supporting the workpiece 4. The support plate 22 is disposed inside the sliding frame 11, and one end face of the support plate 22 abuts against the workpiece 4 to form the support surface 3. When viewed along the first direction F, the support surface 3 and the inner wall of the sliding frame 11 form a receiving groove 23, which is used to clamp the workpiece 4.

[0052] Furthermore, the frame 1 also includes a support plate 22, which is disposed within the sliding frame 11 and abuts against the workpiece 4 to form a support surface 3. The support surface 3 and the inner wall of the sliding frame 11 form a receiving groove 23 to clamp the workpiece 4. This design, through the cooperation of the support plate 22 and the receiving groove 23, achieves rapid positioning and fixing of the workpiece 4, reduces displacement errors during the engraving process, and optimizes the load-bearing stability of the workpiece 4. The beneficial effects include improving the fixing efficiency of the workpiece 4, reducing displacement errors, and enhancing engraving accuracy.

[0053] In one specific embodiment, the sliding frame 11 is made of stainless steel.

[0054] Furthermore, the use of stainless steel improves the wear resistance and corrosion resistance of the sliding frame 11. At the same time, the high rigidity of stainless steel enhances the stability of the structure, with beneficial effects including extending the service life of the equipment, improving structural stability, and reducing maintenance costs.

[0055] In one specific embodiment, the sliding column 12 is made of stainless steel.

[0056] Furthermore, the use of stainless steel improves the wear resistance and corrosion resistance of the sliding column 12. At the same time, the high rigidity of stainless steel enhances the stability of the structure, resulting in benefits such as extending the service life of the equipment, improving structural stability, and reducing maintenance costs.

[0057] The embodiments described above are merely examples of several implementations of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the scope of protection of this application.

Claims

1. A laser engraving machine for gold jewelry, characterized in that, include: A frame and a moving mechanism movably connected to the frame, wherein the frame has a bearing surface formed at the end facing the moving mechanism for loading workpieces; The moving mechanism includes a first translation structure and a second translation structure. Both the first translation structure and the second translation structure are slidably connected to the frame. When viewed perpendicular to the bearing surface, a first slide rail group is provided at one end of the frame along its length direction, and a second slide rail group is provided at the other end along its width direction. The rollers of the first translation structure hold the first slide rail group to slide along the length direction of the first slide rail group, and the rollers of the second translation structure hold the second slide rail group to slide along the length direction of the second slide rail group. The second translation structure is equipped with a laser engraving device, which faces the bearing surface and is used to engrave the workpiece.

2. The gold jewelry laser engraving machine according to claim 1, characterized in that, The frame includes a sliding frame and a sliding column. A straight line direction perpendicular to the bearing surface is defined as the first direction. When viewed along the first direction, the sliding frame and the sliding column are arranged side by side, and the first slide rail group and the second slide rail group are sequentially arranged on the sliding frame and the sliding column. One end of the first translation structure is slidably connected to the sliding frame, and the other end is fixed to the sliding column. The second translation structure is slidably connected to the sliding column.

3. The gold jewelry laser engraving machine according to claim 2, characterized in that, The second translation structure includes two parallel connecting plates and a second pulley group. The second pulley group is provided at one end of the connecting plate near the sliding frame, and the end away from the sliding frame is fixedly connected to the sliding column. When viewed along the direction perpendicular to the first direction, both the first slide rail group and the second slide rail group are double slide rail structures that are symmetrically distributed in the first direction. In the first direction, the second pulley group clamps the second slide rail group so that the second translation structure slides on the second slide rail group.

4. The gold jewelry laser engraving machine according to claim 2, characterized in that, The first translation structure includes two parallel first support plates, a second support plate, and a first pulley group connected between the first support plate and the second support plate. In the first direction, the first pulley group clamps the first slide rail group so that the first translation structure slides on the first slide rail group.

5. The gold jewelry laser engraving machine according to claim 4, characterized in that, The laser engraving device is provided on the end face of the first support plate away from the second support plate, and in the first direction, the output end of the laser engraving device faces the workpiece.

6. The gold jewelry laser engraving machine according to claim 4, characterized in that, The second support plate has a first driving device on its end face away from the first support plate. The first driving device is connected to the first pulley group to drive the first pulley group to slide in the length direction of the first slide rail group.

7. The gold jewelry laser engraving machine according to claim 3, characterized in that, The second translation structure further includes a second driving structure, wherein the transmission rod of the second driving structure passes through the connecting plate in a direction perpendicular to the first direction and is connected to the second pulley group to drive the second pulley group to slide in the length direction of the second slide rail.

8. The gold jewelry laser engraving machine according to claim 2, characterized in that, The frame also includes a support plate for supporting the workpiece. The support plate is disposed inside the sliding frame, and one end face of the support plate abuts against the workpiece to form the support surface. When viewed along the first direction, the support surface and the inner wall of the sliding frame form a receiving groove, which is used to clamp the workpiece.

9. The gold jewelry laser engraving machine according to claim 2, characterized in that, The sliding frame is made of stainless steel.

10. The gold jewelry laser engraving machine according to claim 2, characterized in that, The sliding column is made of stainless steel.

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