Laser galvanometer focal point positioning device

Abstract

The utility model discloses a laser galvanometer focal point positioning device relates to laser galvanometer technical field, solved the dust, chippings of processing environment easy to adhere to the optical surface, and the laser energy loss and focal point scattering are caused, reduce the processing precision even damage the equipment, difficult to satisfy the problem of the demand of continuous high accuracy processing. A kind of laser galvanometer focal point positioning device, comprising: shell;The shell adopts rectangular block structure, and the front side of shell is equipped with circular recess structure, and the right side of shell is equipped with the circular through slot structure of through type;The top front side of shell is fixedly provided with dust screen;The front side of shell is fixedly provided with the piston cylinder of cylindrical structure, and the top of piston cylinder is equipped with the air hole of one-way valve structure;The right side of piston cylinder is communicated and is provided with the collecting groove of U-shaped through slot structure;The influence of dust in the process of equipment operation is greatly reduced, improve the working capacity of the device under harsh environment, satisfy different use needs.

Description

Technical Field

[0001] This utility model belongs to the field of laser galvanometer technology, and more specifically, it relates to a laser galvanometer focus positioning device. Background Technology

[0002] A laser scanner, also called a laser galvanometer, consists of an XY optical scanning head, an electronic drive amplifier, and optical reflecting mirrors. Signals from a computer controller drive the optical scanning head through a drive amplifier circuit, thereby controlling the deflection of the laser beam in the XY plane. In the field of laser processing, the laser galvanometer is the core component for achieving high-precision beam scanning, and its focus positioning accuracy directly determines the processing quality.

[0003] Current laser galvanometers still have the following shortcomings: Optical components (such as emitters, mirrors, and field lenses) are prone to optical path deviation due to heat accumulation during long-term high-power laser operation, resulting in a decrease in focus positioning accuracy. Moreover, dust and debris in the processing environment can easily adhere to the optical surface, causing laser energy loss and focus scattering, reducing processing accuracy or even damaging the equipment. Traditional devices often rely on independent cooling fans and manual dust removal methods, which not only occupy space and increase costs, but also make it difficult to meet the needs of continuous high-precision processing. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a laser galvanometer focus positioning device. This addresses the issue mentioned in the background art where dust and debris in the processing environment easily adhere to the optical surface, causing laser energy loss and focus scattering, reducing processing accuracy, or even damaging the equipment. Traditional devices often rely on independent cooling fans and manual dust removal methods, which not only occupy space and increase costs but also fail to meet the needs of continuous high-precision processing.

[0005] The purpose and effect of this utility model's laser galvanometer focus positioning device are achieved through the following specific technical means: A laser galvanometer focus positioning device includes: a housing; the housing adopts a rectangular block structure, and a circular groove structure is provided on the front side of the housing, and a through circular slot structure is provided on the right side of the housing; a dustproof net is fixedly installed on the top front side of the housing; a cylindrical piston cylinder is fixedly installed on the front side of the housing, and a one-way valve structure vent hole is provided above the piston cylinder; a U-shaped slot structure collection groove is connected to the right side of the piston cylinder.

[0006] Furthermore, an emitter is provided above the inner side of the circular groove on the front side of the housing; a first motor is fixedly provided on the left side of the inner side of the circular groove on the front side of the housing; a first reflector is rotatably provided on the front side of the first motor; a second motor is fixedly provided on the rear side of the circular groove on the front side of the housing; a second reflector is rotatably provided on the front side of the second motor; and a field lens is installed in the circular through groove on the right side of the housing.

[0007] Furthermore, a slide rail is fixedly installed on the top of the housing; a cooling fan is fixedly installed on the front side of the housing; and a transmission plate with a U-shaped plate structure is installed on the rear side of the rotating shaft of the cooling fan for transmission connection.

[0008] Furthermore, a cylindrical transmission rod is fixedly installed on the front side of the transmission plate; a circular piston plate is slidably installed in the circular cavity of the piston cylinder, and the outer wall of the piston plate is in contact with the inner wall of the piston cylinder; a cylindrical slide rod is fixedly connected to the left side of the piston plate; a U-shaped ring is fixedly connected to the left end of the slide rod, and the transmission rod is engaged with the inner side of the connecting ring.

[0009] Furthermore, a rectangular cleaning plate is slidably mounted on the top of the slide rail, and a suction head structure is mounted on the cleaning plate; a cylindrical dust filter box is fixedly mounted above the cleaning plate, and the suction head structure on the cleaning plate is connected to the dust filter box through a pipe, and the dust filter box is connected to the vent hole on the piston cylinder through a pipe.

[0010] Compared with the prior art, the present invention has the following beneficial effects: When the cooling fan rotates, it drives the piston plate to reciprocate via a transmission plate and transmission rod. This improves the dust removal rate of the dust filter without requiring additional power. The negative pressure generated when the piston plate moves to the left can adsorb most dust particles, while the airflow discharged through the collection groove when it moves to the right can blow away suspended dust near the groove, forming a "adsorption-blowing" composite dust removal mode. The automated cleaning path: the reciprocating sliding stroke of the cleaning plate along the slide rail covers the entire optical component area, greatly reducing the impact of dust during equipment operation, improving the device's ability to work in harsh environments, and meeting different usage needs.

[0011] The dust removal system does not require an independent power source, making it more energy-efficient and reducing the overall energy consumption of the equipment. At the same time, the high degree of integration of the heat dissipation and dust removal systems greatly reduces the space occupied by the equipment and improves space utilization. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall axial view structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the overall bottom view of this utility model.

[0014] Figure 3 This is a front view structural diagram of the transmission relationship between the cooling fan and the piston plate in the cross-sectional view of the piston cylinder of this utility model.

[0015] Figure 4 This is a rear axial view of the transmission relationship between the cooling fan and the piston plate in the cross-sectional view of the piston cylinder of this utility model.

[0016] Figure 5 This is a schematic diagram of the disassembled structure of the transmission rod and connecting ring of this utility model.

[0017] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Housing; 101. Emitter; 102. First motor; 103. First reflector; 104. Second motor; 105. Second reflector; 106. Field lens; 107. Dustproof net; 108. Slide rail; 109. Cooling fan; 110. Transmission plate; 111. Transmission rod; 112. Piston cylinder; 113. Piston plate; 114. Slide rod; 115. Connecting ring; 116. Collection tank; 117. Cleaning plate; 118. Dust filter box. Detailed Implementation

[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0019] Example 1: As shown in the attached document Figure 1 To be continued Figure 5 As shown: This utility model provides a laser galvanometer focus positioning device, comprising: a housing 1; the housing 1 adopts a rectangular block structure, and a circular groove structure is provided on the front side of the housing 1, and a through circular slot structure is provided on the right side of the housing 1; a dustproof net 107 is fixedly installed on the top front side of the housing 1; a cylindrical piston cylinder 112 is fixedly installed on the front side of the housing 1, and a one-way valve structure vent hole is provided above the piston cylinder 112; a U-shaped slot structure collection groove 116 is connected to the right side of the piston cylinder 112.

[0020] The top of the housing 1 is fixedly provided with a slide rail 108; the front side of the housing 1 is fixedly provided with a cooling fan 109, which not only has a heat dissipation effect, but also transmits the rotational power generated during operation to the piston plate 113 through the transmission plate 110 and the transmission rod 111; the rear side of the rotating shaft of the cooling fan 109 is provided with a transmission plate 110 with a U-shaped plate structure for transmission connection.

[0021] The transmission plate 110 has a cylindrical transmission rod 111 fixedly mounted on its front side; a circular piston plate 113 is slidably mounted in the circular cavity of the piston cylinder 112, and the outer wall of the piston plate 113 is in contact with the inner wall of the piston cylinder 112; a cylindrical slide rod 114 is fixedly connected to the left side of the piston plate 113; a U-shaped ring connecting ring 115 is fixedly connected to the left end of the slide rod 114, and the transmission rod 111 is engaged with the inner side of the connecting ring 115.

[0022] The top of the slide rail 108 is slidably equipped with a rectangular cleaning plate 117, and the cleaning plate 117 is equipped with a suction head structure. The cleaning plate 117 is fixedly connected to the slide rod 114 via a steel rod. A cylindrical dust filter box 118 is fixedly installed above the cleaning plate 117, and the suction head structure on the cleaning plate 117 is connected to the dust filter box 118 via a pipe. The dust filter box 118 is connected to the vent on the piston cylinder 112 via a pipe. The transmission rod 111 and the connecting ring 115 are designed to engage. When the cooling fan 109 rotates, it drives the piston plate 113 to reciprocate linearly within the piston cylinder 112. When the piston plate 113 moves to the left, it draws air out of the dust filter box 118 through the vent, creating a negative pressure, thereby collecting the dust accumulated on the dust filter 107 into the dust filter box 118. When it moves to the right, it pushes the air in the piston cylinder 112 out through the collection groove 116, achieving intermittent dust extraction, thereby blowing away the dust in the air near the circular groove on the front side of the housing 1 and preventing dust from getting close.

[0023] The specific usage and function of this embodiment are as follows: During use, the dustproof net 107 blocks and absorbs falling dust from above, preventing it from falling into the working areas of the first reflector 103 and the second reflector 105, thus reducing the impact of dust. Simultaneously, the cooling fan 109 is activated and operates normally. The transmission plate 110 and transmission rod 111 drive the connecting ring 115 to move. The connecting ring 115 synchronously drives the slide rod 114 and the cleaning plate 117 to move. The slide rod 114 drives the piston plate 113 to begin reciprocating linear motion within the piston cylinder 112, while the cleaning plate 117 slides reciprocally along the slide rail 108. The piston plate 113 moves to the left. When the air in the dust filter box 118 is drawn out through the vent, a negative pressure is formed. The suction head structure on the cleaning plate 117 sucks the dust accumulated on the dust screen 107 into the dust filter box 118. When the piston plate 113 moves to the right, the dust-laden air in the piston cylinder 112 is forced out through the collection groove 116 to achieve intermittent dust extraction. At the same time, the dust in the air near the circular groove on the front side of the housing 1 is blown away, keeping the air in the processing area clean and avoiding dust from affecting the performance of optical components and the focus positioning accuracy. This greatly reduces the impact of dust in the air on the operation of the equipment and improves the stability and applicability of the device in different processing environments.

[0024] Example 2: Based on Example 1, as shown in the appendix Figure 1 To be continued Figure 5 As shown: The emitter 101 is installed above the inner side of the circular groove on the front side of the housing 1 to emit a laser beam. Its emission angle and position are precisely calibrated to ensure the initial path of the laser beam is stable. A first motor 102 is fixedly installed on the left side of the inner side of the circular groove on the front side of the housing 1. A first reflector 103 is rotatably installed on the front side of the first motor 102. A second motor 104 is fixedly installed on the rear side of the circular groove on the front side of the housing 1. A second reflector 105 is rotatably installed on the front side of the second motor 104. The first reflector 103 and the second reflector 105 form a dual-mirror system. Through high-precision servo motor control, the laser beam can be rapidly deflected and accurately positioned in the X and Y axes. A field mirror 106 is installed in the circular through slot on the right side of the housing 1. It is made of high-transmittance optical glass and focuses the reflected laser beam to ensure that the focal point is accurately projected onto the processing plane.

[0025] The specific usage and function of this embodiment are as follows: In this invention, during use, the transmitter 101 is activated to emit a laser beam. After being reflected by the first reflector 103 and the second reflector 105, the laser beam is focused onto the processing plane by the field lens 106. A laser power meter and a beam analyzer are used to detect the power, spot size, and focal position of the laser beam to ensure that all parameters meet the processing requirements. If the parameters do not meet the requirements, the angles of the first motor 102 and the second motor 104, as well as the position of the field lens 106, are adjusted by the control unit to perform focal positioning calibration.

Claims

1. A laser galvanometer focal positioning device, characterized in that, include: The housing (1) adopts a rectangular block structure, and a circular groove structure is provided on the front side of the housing (1), and a through circular groove structure is provided on the right side of the housing (1); a dustproof net (107) is fixedly provided on the front top of the housing (1); a cylindrical piston cylinder (112) is fixedly provided on the front side of the housing (1), and a one-way valve structure vent hole is provided above the piston cylinder (112); a U-shaped groove structure collection trough (116) is connected to the right side of the piston cylinder (112).

2. The laser galvanometer focal positioning device as described in claim 1, characterized in that: A transmitter (101) is provided above the inner side of the circular groove on the front side of the housing (1); a first motor (102) is fixedly provided on the left side of the inner side of the circular groove on the front side of the housing (1); a first reflector (103) is rotatably provided on the front side of the first motor (102).

3. The laser galvanometer focal positioning device as described in claim 1, characterized in that: A second motor (104) is fixedly installed on the rear side of the circular groove on the front side of the housing (1); a second reflector (105) is rotatably installed on the front side of the second motor (104); a field lens (106) is installed in the circular through groove on the right side of the housing (1).

4. The laser galvanometer focal positioning device as described in claim 1, characterized in that: The top of the housing (1) is fixedly provided with a slide rail (108); a cooling fan (109) is fixedly provided on the front side of the housing (1); a transmission plate (110) with a U-shaped plate structure is provided on the rear side of the rotating shaft of the cooling fan (109).

5. The laser galvanometer focal positioning device as described in claim 4, characterized in that: A cylindrical transmission rod (111) is fixedly installed on the front side of the transmission plate (110); a circular plate-shaped piston plate (113) is slidably installed in the circular cavity of the piston cylinder (112), and the outer wall of the piston plate (113) is in contact with the inner wall of the piston cylinder (112).

6. The laser galvanometer focal positioning device as described in claim 5, characterized in that: A cylindrical slide rod (114) is fixedly connected to the left side of the piston plate (113); a U-shaped ring connecting ring (115) is fixedly connected to the left end of the slide rod (114), and the transmission rod (111) is engaged with the inner side of the connecting ring (115).

7. The laser galvanometer focal positioning device as described in claim 4, characterized in that: A rectangular cleaning plate (117) is slidably mounted on the top of the slide rail (108), and a suction head structure is mounted on the cleaning plate (117). The cleaning plate (117) is fixedly connected to the slide rod (114) by a steel rod. A cylindrical dust filter box (118) is fixedly mounted above the cleaning plate (117), and the suction head structure on the cleaning plate (117) is connected to the dust filter box (118) through a pipe. The dust filter box (118) is connected to the vent on the piston cylinder (112) through a pipe.

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