High-precision light beam calibration device for laser packaging

Abstract

The utility model relates to the technical field of laser beam calibration, in particular to a high-precision beam calibration device for laser packaging, which comprises an assembly block, the upper end and the lower end of the assembly block are connected with sealing covers through bolts, grouped semi-arc holes attached to the assembly block form a closed cavity, and steel balls are arranged in the closed cavity; adjusting screws are fixed at the outer ends of the steel balls; the screws are screwed into threaded holes in the four corners of the supporting plate and push the steel balls to move during rotation, and the assembling blocks are driven to synchronously generate linear movement and multi-direction micro-dip-angle adjustment. The supporting plate is longitudinally and fixedly connected to the bottom plate, a laser mounting hole is formed in the bottom plate, a through hole and a threaded hole with a limiting step are formed in the two sides of the assembling block respectively, and a reflector is arranged in the threaded hole and is pressed and locked by a threaded ring with symmetrical clamping grooves in the outer side; according to the device, mechanical constraint is decoupled through free rotation of the steel ball, and clamping-stagnation-free light beam dynamic calibration is achieved; the thread ring clamping groove provides a tool force application interface, the disassembly and assembly stability of the reflector is guaranteed, and therefore the requirement for light beam direction correction in the packaging process is met.

Description

Technical Field

[0001] This utility model relates to the field of laser beam calibration technology, specifically a high-precision beam calibration device for laser packaging. Background Technology

[0002] Because lasers are susceptible to mechanical stress and thermal deformation during the packaging process, the output beam path may deviate. Therefore, if packaging is done directly without calibration, even small angular deviations will be amplified with the beam transmission distance, directly affecting the positioning accuracy, processing quality, or signal transmission efficiency of the laser equipment. The high-precision beam calibration device for laser packaging is an active calibration system. Its core function is to adjust and lock the pointing angle of the output beam in real time during the laser packaging process. Through the synergistic effect of precision mechanical structures and optical components, this device ensures that the emission direction of the laser beam after packaging is strictly consistent with the preset optical path, meeting the stringent requirements for beam directionality and consistency in fields such as industrial optical communication and medical equipment.

[0003] However, traditional calibration devices use a rigid structure with a screw that pushes directly, which lacks rotational freedom compensation. This makes it easy for the adjustment to become stuck due to deformation of the mechanism or assembly errors, making it difficult to achieve precise micro-angle correction of the beam. In addition, existing mirror fixing methods mostly rely on ordinary thread locking, without a dedicated tool interface. It is difficult to accurately control the clamping force in a small encapsulation space, which can easily cause the lens to shift or break, increasing the risk of calibration failure. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision beam calibration device for laser packaging, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-precision beam calibration device for laser packaging includes an assembly block. A cover is bolted to both the upper and lower ends of the assembly block. Two sets of first semi-circular holes are symmetrically formed on the inner side of each cover. Two sets of second semi-circular holes are symmetrically formed at both the upper and lower ends of the assembly block. Each set of first and second semi-circular holes consists of two holes. After the assembly block is fixed to the cover, a first steel ball and a second steel ball are embedded in the cavity formed by the fit of the first and second semi-circular holes. One side of each steel ball protrudes outside the cavity and is fixedly mounted with a first adjusting screw and a second adjusting screw.

[0007] Preferably, the first adjusting screw and the second adjusting screw are respectively threaded into adjusting screw holes, the adjusting screw holes are respectively opened at the four corners of the support plate, and the support plate is respectively provided with through holes at the center.

[0008] Preferably, the support plate is longitudinally symmetrically installed on the top of the base plate, and several fixing holes are symmetrically opened on both sides of the top of the base plate. Bolts pass through the fixing holes to fix the laser.

[0009] Preferably, the assembly block has a through hole in the middle and on the same side as the second adjusting screw, and the assembly block has a threaded hole at the end opposite to the through hole and on the same side as the first adjusting screw.

[0010] Preferably, the diameter of the through hole is smaller than the diameter of the threaded hole, and the two are connected to form a limiting step. A reflector and a threaded ring are sequentially embedded in the threaded hole.

[0011] Preferably, one side of the reflector is fitted with the limiting step, and the other side is fitted with the threaded ring. The threaded ring is threaded into the threaded hole, and the outer side of the threaded ring is symmetrically provided with slots.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This high-precision beam calibration device for laser packaging allows the assembly block to simultaneously generate linear displacement and multi-directional micro-tilt angle when the adjustment screw is pushed by a steel ball that rotates freely in a cavity formed by a semi-circular hole. This avoids the problems of rigid contact structures being prone to jamming and limited adjustment freedom, and significantly improves the accuracy and smoothness of beam angle fine-tuning.

[0014] 2. This high-precision beam calibration device for laser packaging provides standardized tooling points through symmetrically opened slots on the outer side of the threaded ring, making the clamping force of the reflector controllable and easy to install and disassemble. It avoids the maintenance difficulties caused by stripped screws or missing tools in traditional optical calibration mechanisms, and improves the reliability and efficiency of engineering operations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the support plate of this utility model;

[0017] Figure 3 This is a disassembly diagram of the assembly block of this utility model;

[0018] Figure 4 This is a schematic diagram of the through hole structure of this utility model.

[0019] In the diagram: 101, Assembly block; 102, Cover; 103, First semi-circular hole; 104, Second semi-circular hole; 105, First steel ball; 106, Second steel ball; 107, First adjusting screw; 108, Second adjusting screw; 109, Adjusting screw hole; 110, Support plate; 111, Base plate; 112, Fixing hole; 113, Through hole; 114, Threaded hole; 115, Reflector; 116, Threaded ring; 117, Slot; 118, Limiting step; 119, Through hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0022] A high-precision beam calibration device for laser packaging includes an assembly block 101. A cover 102 is bolted to both the upper and lower ends of the assembly block 101. Two sets of first semi-circular holes 103 are symmetrically formed on the inner side of the cover 102. Two sets of second semi-circular holes 104 are symmetrically formed at both the upper and lower ends of the assembly block 101. Each set of first semi-circular holes 103 and each set of second semi-circular holes 104 consists of two holes. After the assembly block 101 is fixed to the cover 102, a first steel ball 105 and a second steel ball 106 are embedded in the cavity formed by the fit of the first semi-circular holes 103 and the second semi-circular holes 104. One side of the first steel ball 105 and the second steel ball 106 are exposed to the outside of the cavity and fixedly mounted with a first adjusting screw 107 and a second adjusting screw 108.

[0023] The above scheme achieves a sealed cover for the assembly block by bolting the cap; the two sets of first semi-circular holes symmetrically opened on the inner side of the cap and the two sets of second semi-circular holes symmetrically opened on the assembly block fit together to form a closed chamber that can accommodate steel balls; the first and second steel balls are respectively embedded in the closed chamber and partially exposed to provide rotational support for the adjusting screw; the first and second adjusting screws fixedly installed on the exposed side of the steel balls are used to transmit push and pull forces to the assembly block.

[0024] In this embodiment, preferably, the first adjusting screw 107 and the second adjusting screw 108 are respectively threaded into the adjusting screw hole 109, the adjusting screw hole 109 is respectively opened at the four corners of the support plate 110, and the support plate 110 is respectively provided with a through hole 119 at its center.

[0025] The above scheme enables the first and second adjusting screws to achieve precise axial displacement through the threaded engagement of the adjusting screw holes at the four corners of the support plate; the through hole in the center of the support plate provides an unobstructed path for the incident beam, ensuring a smooth laser path.

[0026] In this embodiment, preferably, the support plate 110 is longitudinally symmetrically installed on the top of the base plate 111, and a plurality of fixing holes 112 are symmetrically opened on both sides of the top of the base plate 111. Bolts pass through the fixing holes 112 to fix the laser.

[0027] The above scheme uses longitudinally symmetrically installed support plates to form a moving guide frame for the assembly block; several horizontally symmetrical fixing holes at the top of the base plate are used to connect the device to a designated position on the laser with bolts; and the distributed fixing holes enhance the stability and seismic resistance of the device installation.

[0028] In this embodiment, preferably, a through hole 119113 is provided in the middle of the assembly block 101 and on the same side as the second adjusting screw 108, and a threaded hole 114 is provided at the end of the assembly block 101 opposite to the through hole 119113 and on the same side as the first adjusting screw 107.

[0029] The above scheme establishes an output channel for the reflected beam by opening a through hole in the middle of the assembly block on the same side as the second adjusting screw; provides installation space for the reflector assembly by opening a threaded hole on the same side as the first adjusting screw; and forms the working axis of the optical element by the relative arrangement of the through hole and the threaded hole.

[0030] In this embodiment, preferably, the diameter of the through hole 119113 is smaller than the diameter of the threaded hole 114 and the two are connected to form a limiting step 118. A reflector 115 and a threaded ring 116 are sequentially embedded in the threaded hole 114.

[0031] The above scheme uses a limiting step formed by the through hole diameter being smaller than the threaded hole diameter to accurately position the axial installation reference of the reflector; a detachable optical component fixing structure is formed by sequentially embedding the reflector and threaded ring in the threaded hole; and a controllable clamping force is generated by the cooperation between the threaded ring and the threaded hole.

[0032] In this embodiment, preferably, one side of the reflector 115 is fitted with the limiting step 118, and the other side is fitted with the threaded ring 116. The threaded ring 116 is threadedly engaged with the threaded hole 114, and the outer side of the threaded ring 116 is symmetrically provided with slots 117.

[0033] The above scheme achieves initial positioning by fitting the limiting step on one side of the reflector, while the other side contacts the threaded ring to obtain uniform pressing force. The symmetrical slots on the outer side of the threaded ring provide a force application point for the operating tool, making it easy to control the tightness by turning. The slot structure prevents the tool from slipping, ensuring the reliability of the reflector locking operation.

[0034] In this embodiment, a high-precision beam calibration device for laser packaging is used. First, ensure the reflector 115 is securely installed. Place the reflector 115 into the threaded hole 114 of the assembly block 101, ensuring one side aligns with the limiting step 118. Then, use a tool to engage the threaded ring 116 in the symmetrically opened slots 117 on the outer side, rotating the threaded ring 116 to make it threadedly engage with the threaded hole 114 and press the reflector 115 firmly. After pre-fixing the optical components, securely fix the device to the designated position on the laser using bolts through the fixing hole 112 at the top of the base plate 111, ensuring the laser beam is aligned with the support. The support plate 110 passes through a through hole 119 in the center and enters the device. Subsequently, the operator manually adjusts the first adjusting screw 107 or the second adjusting screw 108 to calibrate the beam. Since these two adjusting screws are installed in opposite directions and are threaded into the adjusting screw holes 109 at the four corners of the support plate 110, they move precisely axially when screwed. One end of the first adjusting screw 107 and the second adjusting screw 108 are fixedly connected to the first steel ball 105 and the second steel ball 106, respectively. The steel balls are embedded in the cavity formed after the assembly block 101 and the cover 102 are fixed together. The chamber is formed by the fit between the second semi-circular hole 104 at the end of the assembly block 101 and the first semi-circular hole 103 symmetrically arranged on the inner side of the cover 102. The key point is that the steel ball can rotate freely in the chamber, which makes the assembly block 101 not only produce linear displacement when pushed by the screw, but also have a controllable tilting degree of freedom, thereby avoiding the problem of mechanism jamming or excessive motion constraint during the adjustment process. When the operator turns the first adjusting screw 107 or the second adjusting screw 108, the axial movement of the screw pushes the steel ball, thereby causing the assembly block 101 to move back and forth and tilt slightly between the support plates 110. During this process, the free rotation characteristics of the steel ball and the precise meshing of the thread work together to enable the position adjustment of the assembly block 101 to achieve both high precision and smoothness. The angular change of the assembly block 101 is directly transmitted to its interior: the pointing angle of the reflector 115 is finely adjusted accordingly, changing the reflection path of the incident beam and ultimately achieving beam directionality calibration. This design ensures the flexibility of angle fine-tuning through the rotational freedom of the steel ball, while the slot 117 structure of the threaded ring 116 ensures stable and controllable assembly and disassembly of key optical components, enabling the device to achieve beam calibration accuracy while also ensuring the reliability and maintainability of engineering installation.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-precision beam calibration device for laser packaging, comprising an assembly block (101), characterized in that: The assembly block (101) is fitted with a cover (102) by bolts at its upper and lower ends. The cover (102) has two sets of first semi-circular holes (103) symmetrically opened on its inner side. The assembly block (101) has two sets of second semi-circular holes (104) symmetrically opened at its upper and lower ends. Each set of first semi-circular holes (103) and each set of second semi-circular holes (104) consists of two holes. After the assembly block (101) and the cover (102) are fixed, a first steel ball (105) and a second steel ball (106) are respectively embedded in the cavity formed by the fit of the first semi-circular holes (103) and the second semi-circular holes (104). The first steel ball (105) and the second steel ball (106) are respectively exposed to the outside of the cavity and fixedly installed with a first adjusting screw (107) and a second adjusting screw (108).

2. The high-precision beam calibration device for laser packaging according to claim 1, characterized in that: The first adjusting screw (107) and the second adjusting screw (108) are respectively threaded into the adjusting screw hole (109). The adjusting screw hole (109) is respectively opened at the four corners of the support plate (110). The support plate (110) is respectively provided with a through hole (119) in the center.

3. The high-precision beam calibration device for laser packaging according to claim 2, characterized in that: The support plate (110) is longitudinally symmetrically installed on the top of the base plate (111). Several fixing holes (112) are symmetrically opened on both sides of the top of the base plate (111). The fixing holes (112) are respectively connected and fixed to the laser by bolts.

4. The high-precision beam calibration device for laser packaging according to claim 3, characterized in that: The assembly block (101) has a through hole (113) in the middle and on the same side as the second adjusting screw (108), and the assembly block (101) has a threaded hole (114) on the opposite end of the through hole (113) and on the same side as the first adjusting screw (107).

5. A high-precision beam calibration device for laser packaging according to claim 4, characterized in that: The diameter of the through hole (113) is smaller than that of the threaded hole (114), and the two are connected to form a limiting step (118). A reflector (115) and a threaded ring (116) are sequentially embedded in the threaded hole (114).

6. A high-precision beam calibration device for laser packaging according to claim 5, characterized in that: The reflector (115) is fitted with a limiting step (118) on one side and a threaded ring (116) on the other side. The threaded ring (116) is threaded into a threaded hole (114). The outer side of the threaded ring (116) is symmetrically provided with slots (117).

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