In-situ high-efficiency collimation structure for laser instrument light source

Abstract

The application relates to an in-situ high-efficiency collimation structure of a laser instrument light source, and belongs to the technical field of laser collimation. The in-situ high-efficiency collimation structure comprises a lens mounting part as a static end and a light source mounting part as a dynamic end; the static end comprises a stainless steel outer cavity, a collimation lens mounted in the inner part of the stainless steel outer cavity, a sealing buffer sealing ring and a lens fixing ring, the lens fixing ring cooperates with the sealing buffer sealing ring to fix the collimation lens on the stainless steel outer cavity; the dynamic end comprises a direction adjusting base, an auxiliary direction adjusting sealing ring embedded in a specified slot of the direction adjusting base, a light source device heat sink fixed on the direction adjusting base and a light source device mounted on the light source device heat sink; the dynamic end is oppositely arranged with the end face of the static end, and the auxiliary direction adjusting sealing ring is used for realizing automatic centering of the dynamic end and the static end and allowing small-angle deflection of the dynamic end.

Description

Technical Field

[0001] This invention belongs to the field of laser collimation technology, and specifically relates to a high-efficiency collimation structure for an in-situ through-beam laser instrument light source. Background Technology

[0002] The collimation path of in-situ through-beam laser instruments can reach several meters or even tens of meters. This requires the light source to have excellent collimation effect. The equivalent light-emitting point of the light source must be accurately placed at the focal point of the collimating lens, and the beam axis must be coincident with the lens axis.

[0003] Currently, the collimation structures of similar instruments on the market are mainly divided into three categories: the first relies on adding or removing thin shims to adjust the spacing, which is affected by individual differences in components and processing errors, resulting in extremely low batch debugging efficiency; the second uses threaded retaining rings to adjust the lens position, which has poor sealing and vibration resistance performance and cannot adjust the beam direction; the third uses six screws for adjustment, which causes mutual interference between spacing and direction adjustments, and the debugging process is lengthy.

[0004] Existing technologies have at least the following problems in use: traditional collimation structures have many debugging components and are complicated to operate; the spacing and beam direction are easily misaligned; mass production debugging efficiency is low; and some structures have poor sealing performance and vibration resistance. Summary of the Invention

[0005] This invention provides an efficient collimation structure for an in-situ through-beam laser instrument light source, which solves the technical problems of traditional collimation structures having many adjustment components, complex operation, and easy misalignment between the spacing and beam direction.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: A high-efficiency collimation structure for an in-situ through-beam laser instrument light source includes a lens mounting component as the stationary end and a light source mounting component as the moving end. The stationary end includes a collimating lens, a sealing buffer ring, a lens fixing ring, and a stainless steel outer cavity. The collimating lens, together with the sealing buffer ring and the lens fixing ring, is fixed on the stainless steel outer cavity. The moving end includes an auxiliary aligning sealing ring, an aligning base, a heat sink for the light source device, and a light source device. The light source device is fixed on the heat sink, and the heat sink is fixed on the aligning base. The auxiliary aligning sealing ring is installed in a designated slot in the aligning base. The moving end and the stationary end are arranged opposite each other, and the auxiliary aligning sealing ring enables automatic alignment of the moving and stationary ends and allows for small-angle aligning.

[0007] Furthermore, the moving end and the stationary end are connected by three internal hexagonal half-thread adjusting bolts arranged in a 120° circumferential array, and each adjusting bolt is fitted with the same number of butterfly springs between the moving end and the stationary end.

[0008] Furthermore, the adjusting bolts provide a continuous inward tension, while the disc springs provide a continuous outward support force; adjusting the three adjusting bolts simultaneously allows for fine-tuning of the distance between the light source device and the collimating lens, adjusting a single adjusting bolt individually allows for fine-tuning of the beam direction, and changing the number of disc springs allows for adjustment over a wide distance range.

[0009] Furthermore, the moving end and the stationary end can also be connected by three tension springs arranged in a 120° circumferential array, and three tightening screws and three fixing screws arranged in the same array are provided. The tightening direction of the tightening screws is opposite to the tension direction of the tension springs.

[0010] Furthermore, the tension spring continuously provides tension as a return control force. By simply adjusting the tightening distance of the three tightening screws, the coordinated adjustment of the distance between the light source device and the collimating lens, as well as the beam direction, can be achieved. This solution has a wider adjustment range and is easier to operate.

[0011] Furthermore, after commissioning, apply thread-locking agent to the threaded connections of the adjusting bolts, tightening screws, and fixing screws to enhance the stability and vibration resistance of the structure under harsh working conditions.

[0012] The beneficial effects are: By simplifying the complex adjustment of multiple components into a three-array fastener adjustment, the difficulty and time cost of debugging are greatly reduced, effectively improving the efficiency of mass production of instruments. A butterfly spring is used as the elastic adjustment element, achieving fine-tuning through the balance of elasticity and tension. The number of springs can be increased or decreased to achieve large-stroke adjustment, resulting in a stable structure and strong vibration resistance. The force-balanced structure of tension springs and tightening screws ensures a smooth and controllable debugging process, allowing for a larger adjustment stroke and adaptability to high-precision, wide-range applications. The combination of auxiliary directional sealing rings, sealing buffer sealing rings, and thread-locking agents comprehensively improves the structure's sealing performance, centering accuracy, and adaptability to harsh environments. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This invention provides a schematic diagram of the stationary and moving ends of an in-situ through-beam laser instrument light source high-efficiency collimation structure. Figure 2 A structural isometric drawing of one embodiment of an in-situ through-beam laser instrument light source high-efficiency collimation structure provided by the present invention; Figure 3A side view of one embodiment of an in-situ through-beam laser instrument light source high-efficiency collimation structure provided by the present invention; Figure 4 A structural isometric drawing of a second embodiment of an in-situ high-efficiency collimation structure for a laser instrument light source provided by an embodiment of the present invention; Figure 5 The image shows a side view of a second embodiment of an efficient collimation structure for an in-situ through-beam laser instrument light source provided by an embodiment of the present invention.

[0015] In the diagram: 1-Auxiliary directional sealing ring; 2-Directional base; 3-Heat sink for light source device; 4-Light source device; 5-Collimating lens; 6-Lens fixing ring; 7-Sealing buffer sealing ring; 8-Stainless steel outer cavity; 9-Adjusting bolt; 10-Butterfly spring; 11-Fixing screw; 12-Tension spring; 13-Tightening screw. Detailed Implementation

[0016] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0017] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0018] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0019] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to welding, bolting, or riveting; they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0020] Example: like Figures 1 to 5As shown, this embodiment provides an efficient collimation structure for an in-situ through-beam laser instrument light source, including a lens mounting component as the stationary end and a light source mounting component as the moving end. The stationary end includes a collimating lens 5, a sealing buffer ring 7, a lens fixing pressure ring 6, and a stainless steel outer cavity 8. The collimating lens 5, together with the sealing buffer ring 7 and the lens fixing pressure ring 6, is fixed on the stainless steel outer cavity 8. The moving end includes an auxiliary directional sealing ring 1, a directional base 2, a light source device heat sink 3, and a light source device 4. The light source device 4 is fixed to the light source device heat sink 3, and the light source device heat sink 3 is fixed as a whole to the directional base 2. The auxiliary directional sealing ring 1 is placed in a designated slot in the directional base 2. The moving end and the stationary end are in end-to-end contact. The auxiliary directional sealing ring 1 allows the moving end and the stationary end to automatically align with the central axis, while also allowing the moving end to be deflected at a certain angle.

[0021] In this embodiment, the stainless steel outer cavity 8 is integrally formed from stainless steel, possessing the characteristics of high strength, corrosion resistance, and excellent sealing performance; the lens fixing ring 6 is assembled by threaded tightening, which can completely press the collimating lens 5 and the sealing buffer ring 7 after assembly, preventing the lens from loosening; the heat sink 3 of the light source device is made of aluminum alloy, with excellent thermal conductivity, which can quickly dissipate the heat generated by the light source device 4 during operation, ensuring stable operation of the light source; the auxiliary directional sealing ring 1 and the sealing buffer sealing ring 7 are both made of aging-resistant rubber, combining elasticity, sealing performance, and wear resistance; the collimating lens 5, together with the sealing buffer sealing ring 7 and the lens fixing ring 6, is fixed on the stainless steel outer cavity 8 to form the stationary end; the light source device 4 is fixed to the heat sink 3 of the light source device, and then the whole assembly is fixed to the directional base 2, and finally the auxiliary directional sealing ring 1 is placed into the designated slot of the directional base 2 to form the moving end; the auxiliary directional sealing ring 1 plays an automatic axis-fixing role, so that the moving end and the stationary end are automatically aligned with the central axis to a great extent and allow for a certain angle adjustment.

[0022] Furthermore, the moving end is connected to the stationary end by three internal hexagonal half-thread adjusting bolts 9 arranged in a 120° circumferential array, and each adjusting bolt 9 has the same number of disc springs 10 sleeved between the moving end and the stationary end.

[0023] In this embodiment, the moving end is connected to the stationary end by three internal hexagonal half-thread adjusting bolts 9 arranged in a 120° circumferential array. Each adjusting bolt 9 is fitted with the same number of butterfly springs 10. This structure only requires adjusting three bolts to achieve efficient alignment. The three adjusting bolts 9 are evenly distributed on the circumference of the mating surface of the moving and stationary ends, resulting in uniform force distribution without eccentric loading. The butterfly springs 10 are selected as standard elastic components, and the number and specifications of the butterfly springs 10 matched with all bolts in the same group of structures are completely consistent, ensuring balanced elastic force. The butterfly springs 10 are stacked and installed on the bolt shank, confined within the gap between the moving and stationary ends, and will not shift.

[0024] Furthermore, adjusting bolt 9 provides a continuous inward tightening force, and butterfly spring 10 provides a continuous outward supporting force; by simultaneously adjusting the tightness of the three bolts, the distance between the light source device 4 and the collimating lens 5 can be quickly and finely adjusted; by adjusting the tightness of a single bolt individually, the beam emission direction can be quickly and finely adjusted; by increasing or decreasing the number of butterfly springs 10, a larger range of distance between the light source and the lens can be adjusted.

[0025] In this embodiment, during debugging, adjusting bolt 9 provides a continuous inward tension, and butterfly spring 10 provides a continuous outward support force. By simultaneously adjusting the tightness of the three bolts, rapid fine-tuning of the distance between the light source device 4 and the collimating lens 5 can be achieved. By adjusting the tightness of a single bolt, rapid fine-tuning of the beam direction can be achieved. By changing the number of butterfly springs 10, a larger range of distance adjustment can be achieved. During actual debugging, the operator can simultaneously tighten the three adjusting bolts 9, using the changes in tension and support force to slightly change the gap between the moving and stationary ends, thus aligning the light source with the lens focal point. When the beam direction deviates, only the single bolt at the corresponding position needs to be tightened, using the local gap change to drive a small-angle deflection of the moving end, which can correct the beam axis. For instruments with different light sources and different optical paths, the initial distance between the moving and stationary ends can be changed by increasing or decreasing the number of butterfly springs 10 to adapt to a wide range of distance adjustment requirements.

[0026] Furthermore, the moving end and the stationary end are connected by three tension springs 12 arranged in a 120° circumferential array, with the tension springs 12 providing continuous tension; at the same time, there are three tightening screws 13 and three fixing screws 11 arranged in the same array, with the tightening direction of the tightening screws 13 being opposite to the tension direction of the tension springs 12.

[0027] In this embodiment, three tension springs 12 are symmetrically arranged, always pulling the moving end towards the stationary end; the tightening screw 13 passes through the outside of the stationary end and presses against the end face of the moving end, forming a counterforce with the tension springs 12; the fixing screw 11 is the final locking component, used after debugging. This structure has a larger overall movement clearance, and compared with the first scheme, it can achieve a larger adjustment stroke, which is suitable for working conditions where the light source installation error is large and a wide range of calibration is required.

[0028] Furthermore, by adjusting the tightening distance of the three tightening screws 13 and using the tension of the tension spring 12 to achieve return control, the distance and beam direction between the light source device 4 and the collimating lens 5 can be quickly and coordinatedly adjusted.

[0029] In this embodiment, during debugging, the three tightening screws 13 are tightened evenly in sequence. When the screw push-out stroke increases, the gap between the moving and stationary ends increases. When the push-out stroke decreases, the gap decreases under the tension of the tension spring 12. The individual tightening screws 13 can be adjusted differently to change the local tightening amount, causing the moving end to deflect and correcting the beam direction. The entire adjustment process relies on the dynamic balance between the tension and the tightening force, so the operation is smooth and there will be no problem of adjustment deviation.

[0030] Furthermore, after the debugging is completed, apply thread-locking agent to the threaded connection of adjusting bolt 9, tightening screw 13 and fixing screw 11.

[0031] In this embodiment, after debugging, the bolt-butterfly-spring 10 scheme, due to the interaction force between the adjusting bolt 9 and the butterfly spring 10 and the fixing effect of the adjusting bolt 9, and the tension spring 12-tightening screw 13 scheme, due to the interaction force between the tightening screw 13 and the tension spring 12 and the fixing effect of the fixing screw 11, already possesses good stability and vibration resistance during use. On this basis, applying thread-locking agent to the threaded connection of the adjusting bolt 9, the tightening screw 13, and the fixing screw 11 can further improve the stability and vibration resistance of the two schemes under more severe conditions.

[0032] In summary, this invention patent simplifies the axis alignment process by using a modular split design of the stationary and moving ends, combined with an auxiliary directional sealing ring 1 to achieve automatic centering. It replaces the traditional multi-screw adjustment structure with three adjustment components arranged in a 120° circumferential array, solving the problem of mutual interference between spacing and beam direction adjustments and significantly improving debugging efficiency. Two adjustment schemes are designed using two different elastic elements, a butterfly spring 10 and a tension spring 12, to suit both fine-tuning and large-stroke adjustment scenarios. Through the combination of multiple seals and thread-locking agents, the structure's sealing performance, vibration resistance, and environmental adaptability are comprehensively improved, making it widely applicable in mass-produced in-situ through-beam laser instruments.

[0033] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope described in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A high-efficiency collimation structure for an in-situ through-beam laser instrument light source, characterized in that, The device includes a lens mounting component as the stationary end and a light source mounting component as the moving end. The stationary end includes a stainless steel outer cavity (8), a collimating lens (5) installed inside the stainless steel outer cavity (8), a sealing buffer sealing ring (7), and a lens fixing pressure ring (6). The lens fixing pressure ring (6) cooperates with the sealing buffer sealing ring (7) to fix the collimating lens (5) on the stainless steel outer cavity (8). The moving end includes an adjusting base (2), an auxiliary adjusting sealing ring (1) embedded in the slot of the adjusting base (2), a light source device heat sink (3) fixed on the adjusting base (2), and a light source device (4) installed on the light source device heat sink (3). The moving end and the stationary end are arranged opposite to each other. The auxiliary adjusting sealing ring (1) is used to realize automatic alignment between the moving end and the stationary end and allow the moving end to deflect at a small angle.

2. The high-efficiency collimation structure for an in-situ through-beam laser instrument light source according to claim 1, characterized in that, The moving end and the stationary end are connected by an internal hexagonal half-tooth adjusting bolt (9) distributed in a circumferential array. Each adjusting bolt (9) is fitted with a butterfly spring (10), which is located between the moving end and the stationary end.

3. The high-efficiency collimation structure for an in-situ through-beam laser instrument light source according to claim 2, characterized in that, The adjusting bolt (9) is used to provide inward tension, and the butterfly spring (10) is used to provide outward support. The tension of the three adjusting bolts (9) can be adjusted simultaneously to finely adjust the distance between the light source device (4) and the collimating lens (5). The tension of a single adjusting bolt (9) can be adjusted individually to finely adjust the beam emission direction.

4. The high-efficiency collimation structure for an in-situ through-beam laser instrument light source according to claim 1, characterized in that, The moving end and the stationary end are connected by three tension springs (12) arranged in a circular array. At the same time, three tightening screws (13) and three fixing screws (11) are arranged in the same array. The tightening direction of the tightening screws (13) is opposite to the tension direction of the tension springs (12).

5. The high-efficiency collimation structure for an in-situ through-beam laser instrument light source according to claim 4, characterized in that, The tension spring (12) continuously provides tension as a return force. By adjusting the tightening distance of the three tightening screws (13), the distance between the light source device (4) and the collimating lens (5) and the beam emission direction can be adjusted in a coordinated manner.

6. The high-efficiency collimation structure for an in-situ through-beam laser instrument light source according to claim 5, characterized in that, After the commissioning is completed, apply thread locking agent to the threaded connection of the adjusting bolt (9), tightening screw (13) and fixing screw (11) to improve the structural stability and vibration resistance.

7. The high-efficiency collimation structure for an in-situ through-beam laser instrument light source according to claim 6, characterized in that, The heat sink plate (3) of the light source device is used to dissipate heat from the light source device (4), and the sealing buffer sealing ring (7) seals and buffers the lens fixing ring (6) and the collimating lens (5) for shock absorption.

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