Collimating lens adjusting device

Abstract

The utility model discloses a collimating lens adjusting device, which comprises a lens fixing structure, a lens adjusting structure, a driving structure and a guiding structure, the lens fixing structure is provided with an interface and a cavity, the lens adjusting structure is arranged in the cavity, a placing groove is arranged in the lens adjusting structure and is used for placing and fixing a collimating lens, and the driving structure is arranged in the cavity. The driving structure sleeves the outer side face of the lens fixing structure by a circle, a clamping groove is formed in the annular inner wall of the driving structure, the lens fixing structure is provided with a guide groove, the guide direction of the guide groove is the axial direction of the lens fixing structure, the first end of the guide structure penetrates through the guide groove to be fixedly connected with the lens adjusting structure, and the second end of the guide structure is clamped in the clamping groove; the driving structure is used for driving the guiding structure to linearly move in the guiding groove, so that the collimating lens fixed in the lens adjusting structure moves in the axial direction of the lens fixing structure. By adopting the embodiment, the focal lengths of different collimating lenses can be adjusted, and the problem that parallel beams are difficult to obtain is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser application technical field especially relates to a collimating lens adjusting device. BACKGROUND

[0002] In the application of laser, since the light source output by the laser is divergent light with a certain angle, it is difficult to directly apply the light source output by the laser, and generally needs to make the light source into parallel light through the collimating lens to make a basis for subsequent light source application.

[0003] Since the virtual light point position is not completely fixed during the manufacture of the laser light source, it will vary within a certain range, and the mechanical structure of the lens installation cannot guarantee that the distance from the virtual light point to the lens is consistent with the focal length of the lens, which will cause the light beam to diverge or converge after passing through the collimating lens, and cannot obtain parallel light beams, and the non-parallel light beams will increase the difficulty of using the light source, and further affect the accuracy of laser processing.

[0004] At present, the existing collimating structure is fixed with the lens position unchanged, and the laser containment is not strong, and domestic laser manufacturers have their own production standards, which leads to a large deviation of the virtual light point position, so the application range is limited, and different focal length lenses cannot be compatible.

[0005] Therefore, it is necessary to design a new collimating lens adjusting device to solve the technical problems existing in the prior art. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a collimating lens adjusting device to solve at least one technical problem of the collimating lens adjusting device in the background art.

[0007] To achieve the above-mentioned purpose, the utility model embodiment provides a collimating lens adjusting device, which comprises: a lens fixing structure, a lens adjusting structure, a driving structure and a guide structure;

[0008] The lens fixing structure is provided with an interface connected with an external component, and a cavity for the axial movement of the lens adjusting structure along the lens fixing structure;

[0009] The lens adjusting structure is arranged in the cavity, and the inside of the lens adjusting structure is provided with a placing groove for placing and fixing the collimating lens;

[0010] The driving structure is sleeved outside the periphery of the lens fixing structure, an annular inner wall of the driving structure is provided with a clamping groove, the lens fixing structure is provided with a guide groove, a guide direction of the guide groove is an axial direction of the lens fixing structure, a first end of the guide structure is fixedly connected with the lens adjusting structure through the guide groove, and a second end of the guide structure is clamped in the clamping groove of the driving structure.

[0011] The driving structure is used for driving the guide structure to move linearly in the guide groove, so as to drive the lens adjusting structure fixedly connected with the guide structure to move in the cavity, so that the collimating lens fixed in the lens adjusting structure moves along the axial direction of the lens fixing structure.

[0012] In the embodiment of the utility model, the collimating lens adjusting device includes two guide structures, the lens fixing structure is provided with two oppositely arranged guide grooves, the first end of each guide structure respectively passes through one guide groove and is fixedly connected with the lens adjusting structure, and the second end is respectively clamped with the clamping groove correspondingly arranged on the driving structure.

[0013] In the embodiment of the utility model, the clamping groove is an annular groove, and the second end of the guide structure is clamped in the annular groove.

[0014] In the embodiment of the utility model, the annular inner wall of the driving structure and the outer surface of the lens fixing structure are respectively provided with corresponding thread structures, the driving structure is connected with the outer side surface of the lens fixing structure through the thread structure, so that the driving structure can move linearly in the axial direction of the lens fixing structure when rotating relative to the lens fixing structure.

[0015] In the embodiment of the utility model, the thread structure is a fine thread structure.

[0016] In the embodiment of the utility model, the collimating lens adjusting device further includes a limiting structure, the limiting structure is arranged in the annular groove, and the limiting structure is used for limiting the guide structure in the annular groove to move in the axial direction of the lens fixing structure when the guide structure is clamped in the annular groove, so that the relative position of the guide structure and the driving structure is unchanged.

[0017] In the embodiment of the utility model, the limiting structure is an annular nylon gasket, and the annular nylon gasket is arranged in the annular groove and located on both sides of the guide structure.

[0018] In the embodiment of the utility model, the outer surface of the lens adjusting structure is equipped with the connecting groove matched with the guide pin shaft, and the first end of the guide pin shaft is fixedly connected with the lens adjusting structure through the connecting groove.

[0019] In the embodiment of the utility model, the outer surface of the first end of the guide pin shaft and the inner wall of the connecting groove are respectively equipped with matched threads, and the first end of the guide pin shaft is fixedly connected with the lens adjusting structure through the thread connection with the connecting groove.

[0020] In the embodiment of the utility model, the outer surface of the driving structure is equipped with knurling.

[0021] The embodiment of the utility model provides a collimating lens adjusting device, a driving structure is sleeved on the outer side surface of a lens fixing structure, the first end of a guide structure is fixedly connected with the lens adjusting structure in the lens fixing structure through the guide groove of the lens fixing structure, and the second end is clamped with the annular inner wall of the driving structure, so that the guide structure can be driven to move linearly in the guide groove through the driving structure, the lens adjusting structure fixedly connected with the guide structure is driven to move in the chamber, the collimating lens fixedly arranged in the lens adjusting structure moves along the axial direction of the lens fixing structure, and then the focal length adjustment of different collimating lenses is completed, and the purpose of effectively ensuring laser parallel collimation is realized under the premise of compatible different collimating lenses. BRIEF DESCRIPTION OF DRAWINGS

[0022] The technical scheme and other beneficial effects of the present application will be apparent through the following detailed description of the specific embodiments of the present application in combination with the drawings.

[0023] Figure 1 It is a cross section structure schematic view of the collimating lens adjusting device provided by the embodiment of the utility model;

[0024] Figure 2 It is a cross section structure schematic view of the driving structure provided by the embodiment of the utility model;

[0025] In the drawings, the reference numerals are as follows:

[0026] 100, collimating lens adjusting device;

[0027] 110, lens fixing structure;120, lens adjusting structure;130, driving structure;140, guide structure;150, limiting structure;

[0028] 200, collimating lens. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0030] It should be noted that the direction terms mentioned in the present application, such as [up], [down], [front], [back], [left], [right], [inward], [outward], [side] and the like, are only the directions of the attached drawings. Therefore, the direction terms used are used to explain and understand the present application, and are not used to limit the present application. In the drawings, similar structures are denoted by the same reference numerals. Moreover, the thickness and shape in the drawings of the present application do not reflect the true proportions, and the purpose is only to illustrate the contents of the embodiments of the present application.

[0031] The terms "first", "second", "third", "fourth" and the like (if any) in the description, claims, and drawings of the present application are used to distinguish similar objects, and do not necessarily have to be used to describe a particular order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to the process, method, product or device.

[0032] In the embodiments of the present application, in the application of the laser, since the light source output by the laser is a divergent light with a certain angle, it is difficult to directly apply the light source output by the laser, and generally needs to pass through a collimating lens to make the light source into parallel light as a basis for subsequent light source application.

[0033] Since the virtual light point position is not completely fixed during the manufacture of the laser light source, it will vary within a certain range, and the mechanical structure of the lens installation cannot guarantee that the distance from the virtual light point to the lens is consistent with the focal length of the lens, which will cause the light beam to diverge or converge after passing through the collimating lens, and the parallel light beam cannot be obtained. Non-parallel light beams will increase the difficulty of using the light source, and further affect the accuracy of laser processing.

[0034] At present, the existing collimation structure is fixed lens position unchanged, its laser containment is not strong, domestic production laser manufacturers have their own production standards, which leads to the position of virtual light spot deviation is very large, therefore, the scope of application is limited, can not be compatible with different focal length lenses.

[0035] Therefore, it is necessary to design a new collimation lens adjusting device to solve the technical problems existing in the prior art.

[0036] In order to solve the above technical problems, the utility model embodiment provides a collimation lens adjusting device 100, the collimation lens adjusting device 100 is explained in detail below.

[0037] Please refer to Figure 1 , Figure 1 It is a sectional structure schematic diagram of collimation lens adjusting device 100 provided by the utility model embodiment, as Figure 1 Indicated, the collimation lens adjusting device 100 includes: lens fixing structure 110, lens adjusting structure 120, drive structure 130 and guide structure 140;

[0038] Wherein, the lens fixing structure 110 is provided with the interface connected with external assembly, and the cavity that can be used for the axial movement of lens adjusting structure 120 along the lens fixing structure 110;The lens adjusting structure 120 is arranged in the cavity, the inside of lens adjusting structure 120 is provided with the placing groove, and the placing groove is used to place and fix collimation lens 200;The drive structure 130 is sleeved on the outer side of lens fixing structure 110, the annular inner wall of drive structure 130 is provided with the clamping groove, the lens fixing structure 110 is provided with the guide groove, the guide direction of guide groove is the axial direction of lens fixing structure 110, the first end of guide structure 140 passes through the guide groove and is fixedly connected with lens adjusting structure 120, the second end of guide structure 140 is clamped in the clamping groove of drive structure 130;The drive structure 130 is used to drive the linear motion of guide structure 140 in the guide groove, to drive the movement of lens adjusting structure 120 fixedly connected with guide structure 140 in the cavity, so that the movement of collimation lens 200 fixed in lens adjusting structure 120 along the axial direction of lens fixing structure 110.

[0039] Thus, by sleeving a driving structure 130 around the outer side of the lens fixing structure 110, and fixing the first end of the guide structure 140 to the lens adjusting structure 120 in the lens fixing structure 110 through the guide groove of the lens fixing structure 110, and the second end to the annular inner wall of the driving structure 130, the guide structure 140 can be driven to move linearly in the guide groove by the driving structure 130, so as to drive the lens adjusting structure 120 fixedly connected with the guide structure 140 to move in the cavity, so that the collimating lens 200 fixed in the lens adjusting structure 120 moves along the axial direction of the lens fixing structure 110, thereby completing the focal length adjustment of different collimating lenses 200, and effectively ensuring the purpose of laser parallel collimation under the premise of compatibility of different collimating lenses 200.

[0040] In the embodiment, the length of the guide direction of the guide groove can be adjusted according to actual application requirements, that is, the focal length adjustment requirements of the collimating lens 200, and can be customized; at the same time, the diameter of the lens adjusting structure 120 and the lens fixing structure 110 can also be customized according to actual application requirements, so as to meet the purpose of focal length adjustment of different specifications of collimating lenses 200.

[0041] In some embodiments, in order to improve the driving efficiency of the driving structure 130, please continue to refer to Figure 1 In the embodiment, the collimating lens adjusting device 100 can include two guide structures 140, the lens fixing structure 110 is provided with two oppositely arranged guide grooves, the first end of each guide structure 140 passes through one guide groove and is fixedly connected with the lens adjusting structure 120, and the second end is respectively connected with the clamping groove arranged on the driving structure 130.

[0042] In the embodiment, the two guide structures 140 are respectively connected with the lens adjusting structure 120 and the driving structure 130, the two guide structures 140 can be driven to move linearly in the corresponding guide groove by the driving structure 130, so as to improve the moving speed of the lens adjusting structure 120 in the cavity of the lens fixing structure 110, and realize the purpose of improving the driving efficiency of the driving structure 130.

[0043] As an optional embodiment, the driving structure 130 can be pushed and pulled to move linearly on the lens fixing structure 110, so as to drive the guide structure 140 to drive the lens adjusting structure 120 to move linearly, and thus the collimating lens 200 fixedly placed in the lens adjusting structure 120 can also move linearly along the axial direction of the lens fixing structure 110, and the purpose of focal length adjustment of different collimating lenses 200 is realized.

[0044] It should be noted that the number of guide structures 140 in the collimating lens adjusting device 100 provided by the embodiment is not limited to one or two, and can be three, four or more, as long as the lens fixing structure 110 is correspondingly provided with the same number of guide grooves for the guide structure 140 to pass through to be fixedly connected with the lens adjusting structure 120.

[0045] In other embodiments, please refer to Figure 2 , Figure 2 is a cross-sectional structure schematic view of the driving structure provided by the embodiment of the utility model, as Figure 2 shown, the clamping groove provided by the embodiment can be an annular groove, and the second end of the guide structure 140 is clamped in the annular groove. In this way, the driving structure 130 provided by the embodiment can not only move along the axial direction of the outer surface of the lens fixing structure 110, but also rotate around the outer surface of the lens fixing structure 110 to release the force that is not in the axial direction of the lens fixing structure 110, so as to avoid the phenomenon that the guide structure 140 is broken in the guide groove due to the force in other directions during the pushing and pulling of the driving structure, thereby effectively ensuring the practicability of the collimating lens adjusting device 100 provided by the embodiment.

[0046] In the embodiment, in order to improve the focal length adjustment accuracy of the collimating lens 200, that is, to improve the movement accuracy during the movement of the collimating lens 200, please refer to Figure 1 and Figure 2 , the annular inner wall of the driving structure 130 and the outer surface of the lens fixing structure 110 are respectively provided with corresponding threaded structures, and the driving structure 130 is connected with the outer surface of the lens fixing structure 110 through the threaded structures, so that the driving structure 130 can move linearly in the axial direction of the lens fixing structure 110 when rotating relative to the lens fixing structure 110.

[0047] In this way, the embodiment can rotate the driving structure 130 to make the driving structure 130 advance or retreat on the lens fixing structure 110 in a rotating manner, so as to determine the displacement of the collimating lens 200 in the lens adjusting structure 120 according to the angle of each rotation, thereby achieving the purpose of high-precision adjustment of the focal length of the collimating lens 200.

[0048] Optionally, in order to further improve the focal length adjustment accuracy of the collimating lens 200, the threaded structure can be a fine thread structure. In this way, through the fine thread structure with a small pitch, not only can the high-precision adjustment of the collimating lens 200 be ensured, but also the driving structure 130 can have a self-locking ability of movement, further improving the adjustment accuracy and practicability of the collimating lens adjustment device 100 provided by the embodiment.

[0049] In the embodiment of the utility model, please continue to refer to Figure 2 The collimating lens adjustment device 100 provided by the embodiment can further include a limiting structure 150, the limiting structure 150 is arranged in the annular groove, and the limiting structure 150 is used to limit the movement of the guiding structure 140 in the axial direction of the lens fixing structure 110 when the guiding structure 140 is clamped in the annular groove, so that the relative position of the guiding structure 140 and the driving structure 130 remains unchanged. In this way, the displacement deviation of the guiding structure 140 during movement can be effectively avoided, thereby affecting the adjustment accuracy of the collimating lens adjustment device 100 provided by the embodiment.

[0050] Optionally, the limiting structure 150 provided by the embodiment can be a ring-shaped nylon gasket, and the ring-shaped nylon gasket is arranged in the annular groove and located on both sides of the guiding structure 140 to clamp the guiding structure 140 in the annular groove. By using a flexible gasket such as a Teflon gasket, the friction between the limiting structure 150 and the guiding structure 140 can be reduced when the driving structure 130 rotates, avoiding the damage to the device and reducing the use cost.

[0051] In some embodiments, the guiding structure 140 provided by the embodiment can be a guide pin shaft, and the outer surface of the lens adjustment structure 120 can be provided with a connecting groove matched with the guide pin shaft, and the first end of the guide pin shaft is fixedly connected with the lens adjustment structure 120 through the connecting groove. In this way, the fixed connection of the guiding structure 140 and the lens adjustment structure 120 can be realized by inserting the first end of the guide pin shaft into the connecting groove, and then the lens adjustment structure 120 can be moved together with the guide pin shaft when the driving structure 130 moves, so as to achieve the purpose of adjusting the focal length of the collimating lens 200 in the lens adjustment structure 120.

[0052] Optionally, in order to improve the stability of the fixed connection of the guide structure 140 and the lens adjusting structure 120, the first end outer surface of the guide pin shaft and the inner wall of the connecting groove can be respectively provided with matching threads, and the first end of the guide pin shaft is connected with the connecting groove through threads, so as to realize the fixed connection with the lens adjusting structure 120. In this way, through the threaded connection, the stability of the fixed connection of the guide structure 140 and the lens adjusting structure 120 can be effectively ensured, so as to ensure the precision of the movement of the lens adjusting structure 120 driven by the guide pin shaft, and further improve the precision of the focal length adjustment of the collimating lens 200.

[0053] In another optional embodiment, the outer surface of the driving structure 130 can be provided with knurls. In this way, by providing knurls on the outer surface of the driving structure 130, the friction when the staff pushes or rotates the driving structure 130 can be increased, so as to prevent slipping and effectively ensure the high-precision adjustment requirement of the focal length of the collimating lens 200.

[0054] In summary, the utility model embodiment provides a collimating lens adjusting device, which comprises a lens fixing structure, a lens adjusting structure, a driving structure and a guide structure; the lens fixing structure is provided with an interface connected with an external component and a chamber for the axial movement of the lens adjusting structure along the lens fixing structure, the lens adjusting structure is arranged in the chamber, the inside of the lens adjusting structure is provided with a placing groove for placing and fixing a collimating lens, the driving structure is sleeved on the outer side of the lens fixing structure, the annular inner wall of the driving structure is provided with a clamping groove, the lens fixing structure is provided with a guide groove, the guide direction of the guide groove is the axial direction of the lens fixing structure, the first end of the guide structure is fixedly connected with the lens adjusting structure through the guide groove, the second end of the guide structure is clamped in the clamping groove of the driving structure, and the driving structure is used for driving the linear movement of the guide structure in the guide groove, so as to drive the movement of the lens adjusting structure fixedly connected with the guide structure in the chamber, and the collimating lens fixed in the lens adjusting structure moves along the axial direction of the lens fixing structure.

[0055] The utility model embodiment can realize the following beneficial effects:

[0056] 1) By sleeving a driving structure on the outer side of the lens fixing structure, the user only needs to adjust the driving structure to achieve the focal length adjustment of the collimating lens, and the convenient operation purpose can be realized.

[0057] 2), by the first end of the guide structure through the guide groove of the lens fixing structure and the lens adjusting structure in the lens fixing structure fixed connection, the second end and the ring-shaped inner wall of the driving structure is connected, so as to drive the guide structure in the guide groove to move linearly by the driving structure, to drive the lens adjusting structure fixedly connected with the guide structure to move in the chamber, so that the collimating lens fixed in the lens adjusting structure moves along the axial direction of the lens fixing structure, and then the focal length adjustment of different collimating lenses is completed, and the laser parallel collimation is effectively ensured under the premise of compatibility of different collimating lenses;

[0058] 3), wide range of use, the distance of the movable collimating lens is long, so as to be compatible with a large number of different specifications of collimating lenses.

[0059] In addition to the above embodiments, the present application can have other implementation manners. Any technical solution formed by equivalent replacement or equivalent replacement falls within the protection scope of the present application.

[0060] Although the preferred embodiments of the present application have been disclosed as above, the above preferred embodiments are not intended to limit the present application, and those skilled in the art can make various modifications and decorations without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application is defined by the scope of the claims.

Claims

1. A collimating lens adjustment device, characterized by, The application relates to a collimating lens adjusting device. The lens fixing structure is provided with an interface connected with an external component and a cavity allowing the lens adjusting structure to move along the axial direction of the lens fixing structure. The lens adjusting structure is arranged in the cavity, and the inside of the lens adjusting structure is provided with a placing groove for placing and fixing a collimating lens. The driving structure is sleeved on the outer side surface of the lens fixing structure, the annular inner wall of the driving structure is provided with a clamping groove, the lens fixing structure is provided with a guide groove, the guide direction of the guide groove is the axial direction of the lens fixing structure, the first end of the guide structure passes through the guide groove and is fixedly connected with the lens adjusting structure, and the second end of the guide structure is clamped in the clamping groove of the driving structure. The driving structure is used for driving the guide structure to move linearly in the guide groove, driving the lens adjusting structure fixedly connected with the guide structure to move in the cavity, and driving the collimating lens fixed in the lens adjusting structure to move along the axial direction of the lens fixing structure. The collimating lens adjusting device comprises two guide structures, the lens fixing structure is provided with two oppositely arranged guide grooves, the first end of each guide structure respectively passes through one guide groove and is fixedly connected with the lens adjusting structure, and the second end is respectively clamped with the clamping groove arranged on the driving structure.

2. The collimating lens adjustment device of claim 1, wherein, The clamping groove is an annular groove, and the second end of the guide structure is clamped in the annular groove.

3. The collimating lens adjustment device of claim 1, wherein, The annular inner wall of the driving structure and the outer surface of the lens fixing structure are respectively provided with corresponding thread structures, the driving structure is connected with the outer side surface of the lens fixing structure through the thread structures, so that the driving structure can move linearly in the axial direction of the lens fixing structure when the driving structure rotates relative to the lens fixing structure.

4. The collimating lens adjustment device of claim 3, wherein, The thread structure is a fine thread structure.

5. The collimating lens adjustment device of claim 4, wherein, The collimating lens adjusting device further comprises a limiting structure arranged in the annular groove, the limiting structure is used for limiting the movement of the guide structure in the axial direction of the lens fixing structure when the guide structure is clamped in the annular groove, so that the relative position of the guide structure and the driving structure is unchanged.

6. The collimating lens adjustment device of claim 4, wherein, The limiting structure is an annular nylon gasket, and the annular nylon gasket is arranged in the annular groove and located on both sides of the guide structure.

7. The collimating lens adjustment device of claim 6, wherein, The guide structure is a guide pin shaft, and the outer surface of the lens adjusting structure is provided with a connecting groove matched with the guide pin shaft, and the first end of the guide pin shaft is fixedly connected with the lens adjusting structure through the connecting groove.

8. The collimating lens adjustment device of claim 1, wherein, The first end of the guide pin shaft and the inner wall of the connecting groove are respectively provided with matching threads, and the first end of the guide pin shaft is fixedly connected with the lens adjusting structure through thread connection with the connecting groove.

9. The collimating lens adjustment device of claim 8, wherein, The outer surface of the driving structure is provided with knurling.

10. The collimating lens adjustment device of claim 1, wherein, ​

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