Dynamic adjustable laser marking machine

Abstract

The utility model relates to a dynamic adjustable laser marking machine, which comprises an X-direction lead screw assembly, a Y-direction lead screw assembly, a Z-direction lead screw assembly, a power supply module, a laser transmitter and a calibration camera, the X-direction lead screw assembly, the Y-direction lead screw assembly and the Z-direction lead screw assembly are mutually and vertically connected to form a three-direction movement mechanism, and the three-direction movement mechanism does reciprocating linear movement along the X, Y and Z directions in a three-dimensional space. The output end of the Z-direction lead screw assembly is connected with the power module through the angle changing assembly, the power module is horizontally arranged in the X direction, the two ends of the power module are connected with the laser transmitter and the calibration camera respectively, and the output direction of the laser transmitter and the output direction of the calibration camera deviate from the Z-direction lead screw assembly. The X-direction lead screw assembly, the Y-direction lead screw assembly and the Z-direction lead screw assembly are used for adjusting the coordinates of the laser transmitter and the calibration camera in the three-dimensional space to adapt to workpieces conveyed on an assembly line, and it is ensured that the marking position is accurate and errorless.

Description

Technical Field

[0001] The utility model relates to the technical field of non-standard intelligent equipment, in particular to a dynamically adjustable laser marking machine. Background Art

[0002] Laser marking technology is one of the important applications in the field of laser processing. It uses high-energy-density lasers to partially irradiate the workpiece, causing the surface material to vaporize or undergo a chemical reaction that changes color, thereby leaving a permanent mark. This marking method can produce a variety of text, symbols, and patterns, and the character size can range from millimeters to microns, which is of special significance for product anti-counterfeiting. The principle of laser marking is that a laser generator generates a high-energy continuous laser beam, and the focused laser acts on the printing material, causing the surface material to melt or even vaporize instantly. By controlling the path of the laser on the surface of the material, the required graphic mark is formed. Currently, most existing laser generators are fixedly installed. When marking workpieces of different volumes and models on the assembly line, they cannot be adjusted to adapt to the position of the workpiece, and the marking position is easily misplaced, so it needs to be improved. Utility Model Content

[0003] Based on this, it is necessary to provide a dynamically adjustable laser marking machine to address the above problems.

[0004] A dynamically adjustable laser marking machine comprises an X-axis screw rod assembly, a Y-axis screw rod assembly, a Z-axis screw rod assembly, a power module, a laser emitter and a calibration camera. The X-axis screw rod assembly, the Y-axis screw rod assembly and the Z-axis screw rod assembly are vertically connected to each other to form a three-axis motion mechanism, which performs reciprocating linear motion along the X, Y and Z directions in three-dimensional space. The output end of the Z-axis screw rod assembly is connected to the power module through an angle change assembly. The power module is horizontally arranged along the X direction. Both ends of the power module are respectively connected to the laser emitter and the calibration camera. The output directions of the laser emitter and the calibration camera are away from the Z-axis screw rod assembly.

[0005] Preferably, the angular variable assembly includes a mounting seat, a rotating shaft, a gear ring and an angular transmission tooth. The mounting seat is U-shaped, and its closed end is connected to the output end of the Z-axis screw assembly through a bolt. The rotating shaft is movably connected to the open end of the mounting seat through a bearing, and the gear ring is sleeved on the rotating shaft. The front end cross-section of the angular transmission tooth is arc-shaped, and the outer ring is meshed with the gear ring. The front end of the angular transmission tooth is movably connected to the open end of the mounting seat through a pin shaft, and the rear end of the angular transmission tooth is connected to the power module.

[0006] Preferably, a back frame is further provided on the side of the Z-axis screw rod assembly facing away from the power module, and the back frame is vertically connected to the guide plate of the Y-axis screw rod assembly.

[0007] Preferably, a limiter is arranged on the guide plate of the X-axis screw rod assembly, the Y-axis screw rod assembly and the Z-axis screw rod assembly, and an induction sheet is arranged at the output end of the X-axis screw rod assembly, the Y-axis screw rod assembly and the Z-axis screw rod assembly corresponding to the limiter.

[0008] The utility model is beneficial in that: the coordinates of the laser emitter and the calibration camera in three-dimensional space are synchronously adjusted by utilizing the X-axis screw assembly, the Y-axis screw assembly, and the Z-axis screw assembly, so as to adapt to the workpieces transported on the assembly line and ensure that the marking position is accurate and correct; at the same time, an angle change assembly is provided to rotate the laser emitter and the calibration camera, adjust the direction, and provide better adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a three-dimensional schematic diagram of a dynamically adjustable laser marking machine according to one embodiment;

[0010] Figure 2 This is a top view schematic diagram of a dynamically adjustable laser marking machine. DETAILED DESCRIPTION

[0011] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0012] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0013] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0014] like Figure 1~2As shown, a dynamically adjustable laser marking machine includes an X-axis screw rod assembly 1, a Y-axis screw rod assembly 2, a Z-axis screw rod assembly 3, a power module 4, a laser emitter 5 and a calibration camera 6. The X-axis screw rod assembly 1, the Y-axis screw rod assembly 2 and the Z-axis screw rod assembly 3 are vertically connected to each other to form a three-axis motion mechanism, which performs reciprocating linear motion along the X, Y and Z directions in three-dimensional space. The output end of the Z-axis screw rod assembly 3 is connected to the power module 4 through an angle change assembly 7. The power module 4 is horizontally arranged along the X direction. The two ends of the power module 4 are respectively connected to the laser emitter 5 and the calibration camera 6, and the output directions of the laser emitter 5 and the calibration camera 6 are away from the Z-axis screw rod assembly 3. Specifically, in this embodiment, the output ends of the X-axis screw assembly 1, the Y-axis screw assembly 2 and the Z-axis screw assembly 3 are connected vertically to each other to form a three-way motion mechanism, driving the power module 4, the laser emitter 5 and the calibration camera 6 to move in the X / Y / Z direction in three-dimensional space, so as to dynamically adjust the coordinate position of the laser emitter 5, match the workpiece on the assembly line station, achieve dynamic standardization, and ensure standardization accuracy. In addition, the calibration camera 6 is adjusted synchronously with the laser emitter 5, and the coordinate displacements adjusted by the two are consistent. After the laser emitter 5 is marked, the workpiece is driven by the assembly line, first passes through the laser emitter 5 for laser marking, and then passes in front of the calibration camera 6 to verify the marking position by image to ensure that the marking is correct. The power module 4 serves as the energy source of the laser emitter 5, and the marking surface of the workpiece cannot always be a vertical surface. Therefore, we use an angle change component 7 to connect with the power module 4, so that the orientation of the laser emitter 5 and the calibration camera 6 can be adjusted, adapted to the inclined marking surface, and better applicability.

[0015] like Figure 1~2 As shown, the angular variable assembly 7 includes a mounting seat 71, a rotating shaft 72, a gear ring 73 and an angular transmission tooth 74. The mounting seat 71 is U-shaped, and its closed end is connected to the output end of the Z-axis screw assembly 3 through a bolt. The rotating shaft 72 is movably connected to the open end of the mounting seat 71 through a bearing. The gear ring 73 is sleeved on the rotating shaft 72. The front end cross-section of the angular transmission tooth 74 is arc-shaped, and the outer ring is meshed with the gear ring 73. The front end of the angular transmission tooth 74 is movably connected to the open end of the mounting seat 71 through a pin shaft, and the rear end of the angular transmission tooth 74 is connected to the power module 4. Specifically, when it is necessary to adjust the angle of the laser emitter 5 and the calibration camera 6, the operator only needs to loosen the locking nut at the end of the rotating shaft 72 and rotate the rotating shaft 72 to drive the angular transmission teeth 74 engaged therewith to rotate, thereby changing the orientation of the power module 4. After the position adjustment is completed, the locking nut is tightened again to prevent the rotating shaft 72 from rotating freely. The locking force provided by the engagement of the gear ring 73 with the front end of the angular transmission teeth 74 can keep the power module 4 stable and prevent it from rotating.

[0016] like Figure 1~2As shown, a back frame 31 is further provided on the side of the Z-axis screw assembly 3 away from the power module 4, and the back frame 31 is vertically connected to the guide plate of the Y-axis screw assembly 2. Specifically, the back frame 31 serves as a support, so that the connection structure between the Y-axis screw assembly and the Z-axis screw assembly 3 has higher strength and better stability to avoid looseness.

[0017] like Figure 1~2 As shown, a stopper 8 is provided on the guide plate of the X-axis screw assembly 1, the Y-axis screw assembly 2, and the Z-axis screw assembly 3, and a sensing sheet 81 is provided at the output end of the X-axis screw assembly 1, the Y-axis screw assembly 2, and the Z-axis screw assembly 3 corresponding to the stopper 8. Specifically, the stopper 8 is used in conjunction with the sensing sheet 81 to limit the displacement distance of the output end of the X-axis screw assembly 1, the Y-axis screw assembly 2, and the Z-axis screw assembly 3, thereby limiting the displacement distance of the laser transmitter 5 and the calibration camera 6 in the X-axis, Y-axis, and Z-axis directions to prevent over-limit and collision with other equipment.

[0018] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A dynamically adjustable laser marking machine, characterized in that: It includes an X-axis screw rod assembly, a Y-axis screw rod assembly, a Z-axis screw rod assembly, a power module, a laser emitter and a calibration camera. The X-axis screw rod assembly, the Y-axis screw rod assembly and the Z-axis screw rod assembly are vertically connected to each other to form a three-axis motion mechanism, which performs reciprocating linear motion along the X, Y and Z directions in three-dimensional space. The output end of the Z-axis screw rod assembly is connected to the power module through an angle change assembly. The power module is horizontally arranged along the X direction. The two ends of the power module are respectively connected to the laser emitter and the calibration camera, and the output directions of the laser emitter and the calibration camera are away from the Z-axis screw rod assembly.

2. A dynamically adjustable laser marking machine as claimed in claim 1, characterized in that: The angular variable assembly includes a mounting seat, a rotating shaft, a gear ring and an angular transmission tooth. The mounting seat is U-shaped, and its closed end is connected to the output end of the Z-direction screw assembly through a bolt. The rotating shaft is movably connected to the open end of the mounting seat through a bearing, and the gear ring is sleeved on the rotating shaft. The cross-section of the front end of the angular transmission tooth is arc-shaped, and the outer ring is meshed with the gear ring. The front end of the angular transmission tooth is movably connected to the open end of the mounting seat through a pin shaft, and the rear end of the angular transmission tooth is connected to the power module.

3. A dynamically adjustable laser marking machine as claimed in claim 1, characterized in that: A back frame is also provided on the side of the Z-direction screw rod assembly facing away from the power module, and the back frame is vertically connected to the guide plate of the Y-direction screw rod assembly.

4. A dynamically adjustable laser marking machine as claimed in claim 1, characterized in that: A stopper is arranged on the guide plate of the X-axis screw rod assembly, the Y-axis screw rod assembly and the Z-axis screw rod assembly, and an induction sheet is arranged at the output end of the X-axis screw rod assembly, the Y-axis screw rod assembly and the Z-axis screw rod assembly corresponding to the stopper.

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