Laser engraving machine

Abstract

The utility model discloses a laser engraving machine, which belongs to the technical field of laser engraving equipment and comprises a workbench, an X-axis lead screw guide mechanism, a Y-axis lead screw guide mechanism and a Z-axis lead screw guide mechanism are arranged at the top of the workbench, a mounting plate is fixed at the moving end of the Z-axis lead screw guide mechanism, and a laser engraving head is fixed at the bottom of the mounting plate. An image recognition sensor is arranged on one side of the laser engraving head, a template replacement mechanism is fixed to the front end of the mounting plate, a plurality of sliding grooves are evenly formed in the top of the workbench in the X-axis direction, and positioning mechanisms which are oppositely arranged are arranged at the two ends of the inner sides of the sliding grooves correspondingly; according to the improved laser engraving machine, the seal template can be identified by arranging the image identification sensor, and the controller can automatically adjust parameters of the engraving machine according to different seal templates, so that the engraving quality is ensured; the template replacement mechanism adopts a modular design, and each template can be independently mounted and dismounted, so that the replacement process is simplified, and the positioning precision is effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of laser engraving equipment, and particularly relates to a laser engraving machine. Background Art

[0002] Laser engraving machine: It is a machine that can engrave characters with high precision and high clarity on an aluminum plate. Its principle is to use the ablation effect of the laser beam to remove a layer of aluminum oxide on the surface of the aluminum plate to form characters or patterns. The advantages of this machine are high precision in engraving position and clear engraving effect, and it is suitable for scenarios that require high-precision engraving, such as making metal handicrafts, billboards, nameplates, etc.

[0003] However, the engraving head of the existing laser engraving machine is installed on the laser engraving machine through multiple bolts and nuts. When replacing the engraving head, the staff needs to loosen, disassemble, replace it, and then tighten and install it, which is cumbersome and laborious. Moreover, with the wide application of laser engraving machines in the field of metal processing, the requirements for engraving precision are getting higher and higher. Traditional laser engraving machines usually adopt a simple mechanical positioning method, with low precision and being easily affected by external factors. Therefore, how to improve the positioning precision of the laser engraving machine has become an urgent problem to be solved. Utility Model Content

[0004] A laser engraving machine proposed in this application aims to solve the problems raised in the above background art.

[0005] To achieve the above object, this application adopts the following technical solutions:

[0006] A laser engraving machine includes a workbench. On both sides of the top of the workbench, there is an X-axis lead screw guiding mechanism. The moving end of the X-axis lead screw guiding mechanism is fixedly installed with a Y-axis lead screw guiding mechanism. The moving end of the Y-axis lead screw guiding mechanism is fixedly installed with a Z-axis lead screw guiding mechanism. The moving end of the Z-axis lead screw guiding mechanism is fixedly installed with a mounting plate. At the bottom of the mounting plate, a laser engraving head is fixedly installed. On one side of the laser engraving head, there is an image recognition sensor. At the front end of the mounting plate, a template replacement mechanism is fixedly installed. Along the X-axis direction on the top of the workbench, a number of chutes are evenly opened. At both ends of the inner side of the chute, there are relatively arranged positioning mechanisms.

[0007] By adopting the above technical solution, the position of the laser engraving head is adjusted successively through the X-axis lead screw guiding mechanism, the Y-axis lead screw guiding mechanism and the Z-axis lead screw guiding mechanism to make it located above the workpiece. Then, the seal template is recognized by the image recognition sensor, and the image recognition sensor transmits the information to the controller through an electrical signal. The controller can then adjust the parameters of the engraving machine automatically according to different seal templates to ensure the engraving quality. The template replacement mechanism adopts a modular design, and each template can be independently installed and disassembled, greatly simplifying the replacement process.

[0008] As a preferred embodiment, the template replacement mechanism includes a U-shaped plate. Both inner walls of the two sides of the U-shaped plate are fixedly connected with inclined rods. The lower ends of the inclined rods are movably connected with a movable plate through pin shafts. One end of the movable plate is fixedly connected with a limiting column, and the other end is provided with a pull rod penetrating through it. The bottom of the pull rod penetrates through the U-shaped plate and is fixedly connected with a handle. The handle is arc-shaped, and the upper end of the pull rod is sleeved with a first spring.

[0009] By adopting the above technical solution, when replacing the template, drag the pull rod downward. The pull rod then drives one end of the movable plate to move downward through the limiting shaft, and makes a lever movement through the pin shaft at the lower end of the inclined rod, so that the other end of the movable plate is lifted up, and finally the limiting column is lifted upward to break away from the seal template. After releasing the handle, under the action of the first spring, the reset of the movable plate and the limiting column is completed.

[0010] As a preferred embodiment, a limiting shaft is fixedly installed at the upper end of the pull rod. A movable groove adapted to the limiting shaft is opened at one end of the movable plate far away from the limiting column, and a limiting groove is opened at the inner bottom of the U-shaped plate.

[0011] By adopting the above technical solution, the movable groove can provide a certain movement space for the limiting shaft, leaving room for the movement process of the limiting shaft. The limiting groove can be used to preliminarily limit the seal template to prevent it from falling during the replacement process.

[0012] As a preferred embodiment, the positioning mechanism includes a slider. The slider is slidably connected with a chute. A clamping block is integrally connected to the top of the slider. Symmetrically arranged wedge-shaped abutting plates are fixedly installed on one side of the clamping block.

[0013] By adopting the above technical solution, the slider moves in the chute and clamps and fixes the material through the wedge-shaped abutting plates.

[0014] As a preferred embodiment, a cavity is formed inside the clamping block. A positioning rod is disposed through the inside of the cavity. A handle is fixedly installed at the top of the positioning rod. A limiting block is fixedly installed in the middle of the positioning rod. The limiting block is slidably connected to the inner wall of the cavity. A second spring is provided between the limiting block and the inner top of the cavity. A threaded hole is formed at the top of the cavity. A threaded section adapted to the threaded hole is provided at the upper end of the positioning rod.

[0015] By adopting the above technical solution, when fixing the workpiece to be processed, rotate the handle. The handle then drives the positioning rod to rotate. The threaded section on the positioning rod drives the limiting block to move inside the cavity through cooperation with the threaded hole, so that the lower end of the positioning rod is separated from the positioning groove, thereby facilitating the movement of the clamping block and preventing the workpiece from shifting during the engraving process, effectively improving the positioning accuracy.

[0016] As a preferred embodiment, a plurality of positioning grooves are evenly formed at the bottom of the sliding groove along the length direction. The positioning rod is adapted to the positioning groove.

[0017] By adopting the above technical solution, insert the lower end of the positioning rod into the positioning groove to fix the clamping block and prevent it from moving in the sliding groove.

[0018] As a preferred embodiment, a controller is fixedly installed on one side of the workbench. The output end of the image recognition sensor is electrically connected to the input end of the controller. The output end of the controller is electrically connected to the input end of the laser engraving head.

[0019] By adopting the above technical solution, the seal template is recognized by the image recognition sensor, and the information is transmitted to the controller through an electrical signal. The controller can then automatically adjust the parameters of the engraving machine for different seal templates to ensure the engraving quality.

[0020] The beneficial effects of this application:

[0021] This laser engraving machine is provided with an image recognition sensor, a positioning mechanism and a template replacement mechanism. The image recognition sensor can recognize the seal template. The image recognition sensor transmits the information to the controller through an electrical signal. The controller can then automatically adjust the parameters of the engraving machine for different seal templates to ensure the engraving quality. The template replacement mechanism adopts a modular design, and each template can be independently installed and disassembled, greatly simplifying the replacement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of this application;

[0023] Figure 2 For this application Figure 1 is an enlarged schematic diagram of part A;

[0024] Figure 3 is the top view of the present application;

[0025] Figure 4 is the cross-sectional view of the positioning mechanism of the present application.

[0026] Reference numerals in the figure: 1, workbench; 2, X-axis lead screw guiding mechanism; 3, Y-axis lead screw guiding mechanism; 4, Z-axis lead screw guiding mechanism; 5, mounting plate; 6, laser engraving head; 7, image recognition sensor; 8, template replacement mechanism; 81, U-shaped plate; 82, inclined rod; 83, movable plate; 84, limit post; 85, pull rod; 86, handle; 87, first spring; 88, limit shaft; 89, movable groove; 810, limit groove; 9, chute; 91, positioning groove; 10, positioning mechanism; 101, slider; 102, clamping block; 1021, cavity; 1022, threaded section; 1023, positioning rod; 1024, handle; 1025, limit block; 1026, second spring; 1027, threaded hole; 103, wedge-shaped contact plate; 11, controller. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0028] Referring to Figures 1 - 4 , a laser engraving machine includes a workbench 1. On both sides of the top of the workbench 1, an X-axis lead screw guiding mechanism 2 is provided. The moving end of the X-axis lead screw guiding mechanism 2 is fixedly installed with a Y-axis lead screw guiding mechanism 3. The moving end of the Y-axis lead screw guiding mechanism 3 is fixedly installed with a Z-axis lead screw guiding mechanism 4. The moving end of the Z-axis lead screw guiding mechanism 4 is fixedly installed with a mounting plate 5. At the bottom of the mounting plate 5, a laser engraving head 6 is fixedly installed. On one side of the laser engraving head 6, an image recognition sensor 7 is provided. At the front end of the mounting plate 5, a template replacement mechanism 8 is fixedly installed. Along the X-axis direction on the top of the workbench 1, a plurality of chutes 9 are evenly opened. At both ends of the inner side of the chute 9, positioning mechanisms 10 are provided oppositely. The position of the laser engraving head 6 is adjusted in sequence through the X-axis lead screw guiding mechanism 2, the Y-axis lead screw guiding mechanism 3, and the Z-axis lead screw guiding mechanism 4 so that it is located above the workpiece. Then, the seal template is recognized by the image recognition sensor 7. The image recognition sensor 7 transmits the information to the controller 11 through an electrical signal. The controller 11 can then adjust the parameters of the engraving machine automatically according to different seal templates to ensure the engraving quality; the template replacement mechanism 8 adopts a modular design, and each template can be independently installed and disassembled, greatly simplifying the replacement process.

[0029] Referring to Figure 2The template replacement mechanism 8 includes a U-shaped plate 81, and the inner walls on both sides of the U-shaped plate 81 are fixedly connected with inclined rods 82. The lower ends of the inclined rods 82 are movably connected with movable plates 83 through pins. One end of the movable plate 83 is fixedly connected with a limiting column 84, and the other end is penetrated by a pull rod 85. The bottom of the pull rod 85 penetrates the U-shaped plate 81 and is fixedly connected with a handle 86. The handle 86 is arc-shaped, and a first spring 87 is sleeved on the upper end of the pull rod. When replacing the template, the pull rod 85 is dragged downward, and the pull rod 85 then drives one end of the movable plate 83 to move downward through the limiting shaft 88, and performs a lever movement through the pin at the lower end of the inclined rod 82, so that the other end of the movable plate 83 is tilted, and finally the limiting column 84 is lifted up and separated from the seal template. After releasing the handle 86, the movable plate 83 and the limiting column 84 are reset under the action of the first spring 87.

[0030] Reference Figure 2 A limiting shaft 88 is fixedly installed on the upper end of the pull rod 85, and a movable groove 89 adapted to the limiting shaft 88 is opened at one end of the movable plate 83 away from the limiting column 84. A limiting groove 810 is opened at the inner bottom of the U-shaped plate 81. The movable groove 89 can provide a certain movable space for the limiting shaft 88, leaving room for the movement of the limiting shaft 88. The limiting groove 810 can be used to initially limit the seal template to prevent it from falling during the replacement process.

[0031] Reference Figure 3 and Figure 4 The positioning mechanism 10 includes a slider 101, which is slidably connected to the slide groove 9. A clamping block 102 is integrally connected to the top of the slider 101. A symmetrically arranged wedge-shaped contact plate 103 is fixedly installed on one side of the clamping block 102. The slider 101 moves in the slide groove 9 and clamps the material through the wedge-shaped contact plate 103, thereby preventing the workpiece from shifting during the engraving process and effectively improving the positioning accuracy.

[0032] Reference Figure 4, a cavity 1021 is formed inside the clamping block 102. A positioning rod 1023 is disposed through the inner side of the cavity 1021. A handle 1024 is fixedly installed at the top of the positioning rod 1023. A limiting block 1025 is fixedly installed in the middle of the positioning rod 1023. The limiting block 1025 is slidably connected to the inner wall of the cavity 1021. A second spring 1026 is arranged between the limiting block 1025 and the inner top of the cavity 1021. A threaded hole 1027 is formed at the top of the cavity 1021. A threaded section 1022 adapted to the threaded hole 1027 is arranged at the upper end of the positioning rod 1023. When fixing the workpiece to be processed, rotate the handle 1024. The handle 1024 then drives the positioning rod 1023 to rotate. The threaded section 1022 on the positioning rod 1023 drives the limiting block 1025 to move inside the cavity 1021 through cooperation with the threaded hole 1027, so that the lower end of the positioning rod 1023 is separated from the positioning groove 91, thereby facilitating the movement of the clamping block 102.

[0033] Refer to Figure 3 , a plurality of positioning grooves 91 are uniformly formed at the bottom of the sliding groove 9 along the length direction. The positioning rod 1023 is adapted to the positioning groove 91. The lower end of the positioning rod 1023 is inserted into the positioning groove 91 to fix the clamping block 102 and prevent it from moving in the sliding groove 9.

[0034] Refer to Figure 1 , a controller 11 is fixedly installed on one side of the workbench 1. The output end of the image recognition sensor 7 is electrically connected to the input end of the controller 11. The output end of the controller 11 is electrically connected to the input end of the laser engraving head 6. The image recognition sensor 7 recognizes the seal template and transmits the information to the controller 11 through an electrical signal. The controller 11 can then adjust the parameters of the engraving machine automatically according to different seal templates to ensure the engraving quality.

[0035] Working principle: First, when fixing the workpiece, the slider 101 moves in the chute 9, and the material is clamped and fixed by the wedge-shaped contact plate 103. Then, the handle 1024 is rotated, and the handle 1024 then drives the positioning rod 1023 to rotate. The threaded section 1022 on the positioning rod 1023 drives the limit block 1025 to move inside the cavity 1021 through cooperation with the threaded hole 1027, so that the lower end of the positioning rod 1023 is separated from the positioning groove 91, thereby facilitating the movement of the clamping block 102, preventing the workpiece from shifting during engraving, effectively improving the positioning accuracy. Then, the position of the laser engraving head 6 is adjusted in sequence through the X-axis lead screw guiding mechanism 2, the Y-axis lead screw guiding mechanism 3, and the Z-axis lead screw guiding mechanism 4 to make it located above the workpiece. Then, the seal template is recognized by the image recognition sensor 7, and the image recognition sensor 7 transmits the information to the controller 11 through an electrical signal; when replacing the template, the pull rod 85 is dragged downward, and the pull rod 85 then drives one end of the movable plate 83 to move downward through the limit shaft 88, and a lever movement is made through the pin shaft at the lower end of the inclined rod 82, so that the other end of the movable plate 83 is lifted, and finally the limit post 84 is lifted upward to be separated from the seal template. After loosening the handle 86, under the action of the first spring 87, the reset of the movable plate 83 and the limit post 84 is completed. With a modular design, each template can be independently installed and disassembled, greatly simplifying the replacement process. The controller 11 can then target different seal templates and automatically adjust the parameters of the engraving machine to ensure the engraving quality.

[0036] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application, according to the technical solution of the present application and its inventive concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present application.

Claims

1. A laser engraving machine, comprising a workbench (1), characterized in that: X-axis screw guide mechanisms (2) are arranged on both sides of the top of the workbench (1); a Y-axis screw guide mechanism (3) is fixedly installed on the movable end of the X-axis screw guide mechanism (2); a Z-axis screw guide mechanism (4) is fixedly installed on the movable end of the Y-axis screw guide mechanism (3); a mounting plate (5) is fixedly installed on the movable end of the Z-axis screw guide mechanism (4); a laser engraving head (6) is fixedly installed on the bottom of the mounting plate (5); an image recognition sensor (7) is arranged on one side of the laser engraving head (6); a template replacement mechanism (8) is fixedly installed on the front end of the mounting plate (5); a plurality of slide grooves (9) are evenly opened on the top of the workbench (1) along the X-axis direction; positioning mechanisms (10) are arranged oppositely at both ends of the inner side of the slide grooves (9).

2. A laser engraving machine according to claim 1, characterized in that: The template replacement mechanism (8) comprises a U-shaped plate (81), the inner walls on both sides of the U-shaped plate (81) are fixedly connected to inclined rods (82), the lower ends of the inclined rods (82) are movably connected to a movable plate (83) via a pin, one end of the movable plate (83) is fixedly connected to a limiting column (84), and the other end is penetrated by a pull rod (85), the bottom of the pull rod (85) penetrates the U-shaped plate (81) and is fixedly connected to a handle (86), the handle (86) is arc-shaped, and the upper end of the pull rod is sleeved with a first spring (87).

3. A laser engraving machine according to claim 2, characterized in that: A limit shaft (88) is fixedly mounted on the upper end of the pull rod (85); a movable groove (89) adapted to the limit shaft (88) is provided at one end of the movable plate (83) away from the limit column (84); and a limit groove (810) is provided at the inner bottom of the U-shaped plate (81).

4. A laser engraving machine according to claim 1, characterized in that: The positioning mechanism (10) comprises a slider (101), the slider (101) being slidably connected to the slide groove (9), a clamping block (102) being integrally connected to the top of the slider (101), and a symmetrically arranged wedge-shaped abutment plate (103) being fixedly mounted on one side of the clamping block (102).

5. A laser engraving machine according to claim 4, characterized in that: A cavity (1021) is provided on the inner side of the clamping block (102), a positioning rod (1023) is provided on the inner side of the cavity (1021), a handle (1024) is fixedly installed on the top of the positioning rod (1023), a limit block (1025) is fixedly installed in the middle of the positioning rod (1023), the limit block (1025) is slidably connected to the inner wall of the cavity (1021), a second spring (1026) is provided between the limit block (1025) and the top of the inner side of the cavity, a threaded hole (1027) is provided on the top of the cavity (1021), and a threaded section (1022) adapted to the threaded hole (1027) is provided on the upper end of the positioning rod (1023).

6. A laser engraving machine according to claim 5, characterized in that: A plurality of positioning grooves (91) are evenly arranged at the bottom of the slide groove (9) along the length direction, and the positioning rod (1023) is adapted to fit the positioning grooves (91).

7. The laser engraving machine according to claim 1, characterized in that: A controller (11) is fixedly mounted on one side of the workbench (1); an output end of the image recognition sensor (7) is electrically connected to an input end of the controller (11); and an output end of the controller (11) is electrically connected to an input end of a laser engraving head (6).

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