Flight path capable of switching optical path

Abstract

The embodiment of the utility model discloses a flight optical path capable of switching optical path, which comprises a laser, a first reflector group and a laser head which are sequentially arranged along the path of the flight optical path, and the laser head is movably arranged along a first linear optical path on which the laser head is located; the system further comprises a second reflector group which is movably arranged between the first reflector group and the laser, and the second reflector group has a working state and a dormant state. When the second reflecting mirror group is in a working state, the second reflecting mirror group participates in the flight light path, the first reflecting mirror group exits from the flight light path, and a laser beam emitted by the laser device enters the laser head through the second reflecting mirror group; and when the second reflector group is in a dormant state, the first reflector group participates in the flight light path, the second reflector group exits from the flight light path, and a laser beam emitted by the laser device enters the laser head through the first reflector group.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser impact processing technical field especially, relate to a kind of flight optical path of switchable optical path. BACKGROUND

[0002] In the field of laser processing, flight optical path system plays a vital role, which skillfully integrates precision optical path elements such as reflecting mirrors, ensuring that the laser beam is stably emitted from the laser, can pass through the accurate reflection path, and finally guide to the laser head. As the core component of optical path shaping, the laser head is responsible for focusing the light beam to micron-level precision, directly acting on the surface of the processing object, realizing high-precision material processing. However, in traditional design, the laser head often needs to move frequently along the horizontal direction to adapt to the needs of different positions on the processing object. This dynamic process inevitably leads to continuous changes in the total flight distance of the laser optical path, and the equidistance of optical path transmission faces serious challenges.

[0003] Specifically, when the laser head is at the optical path near point (i.e. the position closest to the laser along the optical path movement trajectory) and the optical path far point (i.e. the position farthest from the laser along the optical path movement trajectory), there is a significant difference in optical path length. This significant change in optical path length directly exacerbates the energy loss of laser propagation in air, thereby affecting the effect of laser processing. UTILITY MODEL CONTENT

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a flight optical path with switchable optical path to solve the problem of significant difference in optical path length when the existing laser head is at the optical path near point and the optical path far point. This significant change in optical path length directly exacerbates the energy loss of laser propagation in air, thereby affecting the effect of laser processing.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The embodiment of the utility model provides a flight light path of switchable optical path, it includes: laser, first mirror group and laser head that are arranged in order along the path of flight light path, the laser head is mobilely arranged along its first linear light path, still include second mirror group, second mirror group is movably arranged between first mirror group and laser, second mirror group has two states of working state and dormancy state, when second mirror group is in working state, second mirror group participates in flight light path, first mirror group exits flight light path, the laser beam that laser emits passes through second mirror group and is shot into laser head, when second mirror group is in dormancy state, first mirror group participates in flight light path, second mirror group exits flight light path, the laser beam that laser emits passes through first mirror group and is shot into laser head.

[0007] Wherein, the first mirror group includes first mirror and second mirror, the first mirror is used for receiving the laser beam shot into by the second linear light path and reflecting to the second mirror, and the second mirror is used for receiving the laser beam reflected by the first mirror and reflecting to a third linear light path.

[0008] Wherein, the second mirror group includes third mirror and fourth mirror, the third mirror is used for receiving the laser beam shot into by the second linear light path and reflecting to the fourth mirror, and the fourth mirror is used for receiving the laser beam reflected by the third mirror and reflecting to the third linear light path; when the second mirror group is in working state, the third mirror is located in the second linear light path and is shielded in front of the first mirror, the terminal point of the second linear light path is located on the third mirror, and the starting point of the third linear light path is located on the fourth mirror; when the second mirror group is in dormancy state, the third mirror is located outside the second linear light path, the terminal point of the second linear light path is located on the first mirror, and the starting point of the third linear light path is located on the second mirror.

[0009] Wherein, the second mirror group further includes a movable seat that is vertically liftable, the third mirror and the fourth mirror are both arranged on the movable seat, and the second mirror group is lifted by the movable seat to switch between the working state and the dormancy state.

[0010] Wherein, the laser beam emitted by the laser is directly shot on the first mirror group or the second mirror group; or, the flight light path further includes at least one third mirror group, and the laser beam emitted by the laser is shot on the first mirror group or the second mirror group after being reflected by the third mirror group.

[0011] Wherein, the laser beam is directly transmitted to the laser head through the first straight light path after being reflected by the first mirror group or the second mirror group; or, the flying light path further comprises at least one fourth mirror group, the laser beam is reflected by the fourth mirror group after being reflected by the first mirror group or the second mirror group to be transmitted to the laser head through the first straight light path.

[0012] Wherein, the movement path of the laser head on the first straight light path is divided into a first preset path and a second preset path, the first preset path is close to the starting point of the first straight light path, and the second preset path is close to the terminal point of the first straight light path; when the laser head is located in the first preset path, the second mirror group is in a dormant state; when the laser head is located in the second preset path, the second mirror group is in a working state.

[0013] Wherein, the optical path range of the second mirror group in the dormant state is the same as the optical path range of the second mirror group in the working state.

[0014] Wherein, the second mirror group is connected with a driving device, and the driving device is used to drive the second mirror group to move to switch between the dormant state and the working state.

[0015] Wherein, the laser head comprises a galvanometer and a field lens.

[0016] Compared with the prior art, the flying light path with switchable optical path of the utility model, when the laser head moves to the position far away from the laser, the second mirror group is activated to the working state, directly participates in the light path, and the laser beam is guided to the laser head through a shorter path, thereby compensating the optical path change caused by the distance increase; when the laser head is close to the laser, the second mirror group is in the dormant state, exits the light path, and the laser beam is transmitted to the laser head according to the conventional path through the first mirror group; the flying light path with switchable optical path is designed so that the laser processing system can be quickly adjusted according to different application scenarios and requirements, and different optical path requirements can be adapted by switching the state of the second mirror group.

[0017] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, the content of the specification can be implemented, and in order to make the above and other purposes, characteristics and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will make further detailed description to the utility model by combining with the drawings and specific embodiments.

[0019] Fig. 1 It is a structure schematic view of the utility model a fly light path first mirror group of switchable optical path participates in the light path, and a second mirror group does not participate in the light path.

[0020] Fig. 2 It is a structure schematic view of the utility model a fly light path first mirror group of switchable optical path does not participate in the light path, and a second mirror group participates in the light path.

[0021] Fig. 3 It is a structure schematic view of the utility model a fly light path second mirror group in the dormant state.

[0022] Fig. 4 It is a structure schematic view of the utility model a fly light path second mirror group in the working state.

[0023] The figure mark explanation:

[0024] 1, laser; 2, first mirror group; 21, first mirror; 22, second mirror; 3, second mirror group; 31, third mirror; 32, fourth mirror; 33, movable seat; 4, laser head; 5, first straight light path; 6, second straight light path; 7, third straight light path; 8, third mirror group; 9, fourth mirror group. Specific embodiments

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will make further detailed description to the utility model by combining with the drawings and specific embodiments.

[0026] The following will make clear, complete description to the technical scheme in the embodiments of the utility model by combining with the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor are within the protection scope of the utility model.

[0027] In the description of the utility model, it is understood that the directions or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are the directions or positional relationships described based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0028] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0029] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] In the utility model, unless otherwise specifically defined and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or the indirect contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical and inclined upper of the first feature to the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical and inclined lower of the first feature to the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0031] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0032] Please refer to Figs. 1 to 4 The embodiment of the present application discloses a flight light path with switchable optical path, which comprises: laser 1, first mirror group 2 and laser head 4 arranged in sequence along the path of flight light path, the laser head 4 is movably arranged along the first straight line light path 5; further comprising second mirror group 3, the second mirror group 3 is movably arranged between the first mirror group 2 and the laser 1, the second mirror group 3 has two states of working state and dormant state; when the second mirror group 3 is in working state, the second mirror group 3 participates in the flight light path, the first mirror group 2 exits the flight light path, the laser beam emitted by the laser 1 is shot into the laser head 4 through the second mirror group 3; when the second mirror group 3 is in dormant state, the first mirror group 2 participates in the flight light path, the second mirror group 3 exits the flight light path, the laser beam emitted by the laser 1 is shot into the laser head 4 through the first mirror group 2.

[0033] In the conventional design, the laser head 4 moves in the horizontal direction to cover different processing positions, which leads to significant changes in the total optical path length of the light path, in order to solve this problem, the second mirror group 3 is introduced in the embodiment, the second mirror group 3 can be switched between working state and dormant state. When the laser head 4 moves to a position away from the laser 1 (i.e. when the optical path is longer), the second mirror group 3 is activated to working state and directly participates in the light path, and the laser beam is guided to the laser head 4 through a shorter path, thereby compensating for the change in optical path caused by the increase in distance. When the laser head 4 is close to the laser 1 (i.e. when the optical path is shorter), the second mirror group 3 is in dormant state and exits the light path, and the laser beam is transmitted to the laser head 4 through the first mirror group 2 according to the conventional path, the embodiment realizes flexible adjustment of the optical path and the light path by the switchable second mirror group 3 and the movable laser head 4.

[0034] Further, the first mirror group 2 comprises a first mirror 21 and a second mirror 22, the first mirror 21 is used to receive the laser beam from the second straight light path 6 and reflect to the second mirror 22, the second mirror 22 is used to receive the laser beam reflected by the first mirror 21 and reflect to the third straight light path 7.

[0035] Further, the second mirror group 3 comprises a third mirror 31 and a fourth mirror 32, the third mirror 31 is used to receive the laser beam from the second straight light path 6 and reflect to the fourth mirror 32, the fourth mirror 32 is used to receive the laser beam reflected by the third mirror 31 and reflect to the third straight light path 7; when the second mirror group 3 is in working state, the third mirror 31 is located in the second straight light path 6 and blocks the first mirror 21, the end point of the second straight light path 6 is located on the third mirror 31, and the start point of the third straight light path 7 is located on the fourth mirror 32; when the second mirror group 3 is in dormant state, the third mirror 31 is located out of the second straight light path 6, the end point of the second straight light path 6 is located on the first mirror 21, and the start point of the third straight light path 7 is located on the second mirror 22.

[0036] It can be understood that when the light path needs to be switched, the second mirror group 3 is driven into working state, the third mirror 31 moves into the second straight light path 6 and blocks the first mirror 21, the laser beam is received by the third mirror 31 and reflected to the fourth mirror 32, and then reflected to the third straight light path 7 by the fourth mirror 32, at the same time, the first mirror group 2 exits the light path, it needs to be explained that the first mirror group 2 exits the light path here does not represent the action process, only means that the first mirror group 2 does not participate in the flight light path, in fact, the first mirror group 2 is always in static state. When the original light path needs to be restored, the second mirror group 3 is driven into dormant state, the third mirror 31 moves out of the second straight light path 6, and the laser beam is transmitted to the laser head 4 according to the path of the first mirror group 2 again.

[0037] Specifically, the second mirror group 3 further comprises a movable seat 33 arranged vertically movable, the third mirror 31 and the fourth mirror 32 are arranged on the movable seat 33, and the second mirror group 3 is lifted or lowered through the movable seat 33 to switch between the working state and the dormant state. Further, when the movable seat 33 is lifted or lowered, the third mirror 31 and the fourth mirror 32 are lifted or lowered together, and when the movable seat 33 is lifted to a certain position, the third mirror 31 moves into the second straight light path 6 and blocks in front of the first mirror 21, at this time, the second mirror group 3 is in the working state; when the movable seat 33 is lowered to a certain position, the third mirror 31 moves out of the second straight light path 6, at this time, the second mirror group 3 is in the dormant state. Preferably, when the movable seat 33 is lifted to the limit position, the second mirror group 3 is in the working state; when the movable seat 33 is lowered to the limit position, the second mirror group 3 is in the dormant state.

[0038] In an embodiment, the movable seat 33 drives the third mirror 31 and the fourth mirror 32 to be lifted together, and as the movable seat 33 is lifted, the third mirror 31 gradually moves into the second straight light path 6 and blocks in front of the first mirror 21, until the third mirror 31 completely blocks the first mirror 21, at this time, the second mirror group 3 is in the working state; in another embodiment, the movable seat 33 drives the third mirror 31 and the fourth mirror 32 to be lowered together, and as the movable seat 33 is lowered, the third mirror 31 gradually moves out of the second straight light path 6, until the third mirror 31 completely moves out of the light path, at this time, the second mirror group 3 is in the dormant state. The above-mentioned embodiments realize the automatic control of the light path switching by introducing the movable seat 33, which reduces the complexity and error risk of manual operation.

[0039] Specifically, the second mirror group 3 is connected with a driving device, and the driving device is used to drive the second mirror group 3 to move to switch between the dormant state and the working state. The driving device is used to drive the movable seat 33 to move up or down. Optionally, the embodiment further comprises a control system electrically connected with the driving device, and when the control system issues an instruction to switch the light path, the driving device is started to drive the movable seat 33 to move up or down.

[0040] Further, the movement path of the laser head 4 on the first straight light path 5 is divided into a first preset path and a second preset path, the first preset path is close to the starting point of the first straight light path 5, and the second preset path is close to the ending point of the first straight light path 5; when the laser head 4 is located in the first preset path, the second mirror group 3 is in the dormant state; when the laser head 4 is located in the second preset path, the second mirror group 3 is in the working state. Preferably, the lengths of the first preset path and the second preset path are the same.

[0041] In an embodiment, the present application monitors the position of the laser head 4 on the first straight light path 5 in real time through a sensor, and transmits the position information to the control system, which determines whether the laser head 4 is located in the first preset path or the second preset path according to the position information. When the laser head 4 is located in the first preset path, the control system issues a first instruction, and the driving device drives the movable seat 33 to descend to the dormant state position; when the laser head 4 is located in the second preset path, the control system issues a second instruction, and the driving device drives the movable seat 33 to ascend to the working state position. After receiving the first instruction or the second instruction, the driving device drives the movable seat 33 to ascend or descend through mechanical transmission, and with the movement of the movable seat 33, the third mirror 31 enters or exits the second straight light path 6, realizing the switching of the light path.

[0042] Further, the laser beam emitted by the laser 1 is directly incident on the first mirror group 2 or the second mirror group 3; or, the flight light path further comprises at least one third mirror group 8, and the laser beam emitted by the laser 1 is reflected by the third mirror group 8 and then incident on the first mirror group 2 or the second mirror group 3. In this embodiment, the laser 1 emits a laser beam, which is first reflected by the third mirror group 8 to change its propagation direction. The third mirror group 8 can be a combination of one or more mirrors, which can realize precise control of the laser beam by adjusting their positions and angles. After being reflected by the third mirror group 8, the laser beam continues to propagate to the first mirror group 2 or the second mirror group 3 and is reflected again. Finally, the laser beam is transmitted to the target position according to the predetermined path and completes the machining task.

[0043] Further, the laser beam is directly incident on the laser head 4 through the first straight light path 5 after being reflected by the first mirror group 2 or the second mirror group 3; or, the flight light path further comprises at least one fourth mirror group 9, and the laser beam is reflected by the fourth mirror group 9 after being reflected by the first mirror group 2 or the second mirror group 3 to be incident on the laser head 4 through the first straight light path 5. In this embodiment, the laser beam is initially reflected by the first mirror group 2 or the second mirror group 3 and then propagates to the fourth mirror group 9 and is reflected. Finally, the laser beam reflected by the fourth mirror group 9 is transmitted to the laser head 4 along the first straight light path 5, and the machining task is completed.

[0044] Specifically, the optical path range of the second mirror group 3 in the dormant state is the same as the optical path range of the second mirror group 3 in the working state. In this embodiment, by keeping the optical path range of the second mirror group 3 the same in the dormant state and the working state, the difference in the characteristics of the laser beam caused by the change in the optical path can be eliminated, and the stability and consistency of the system can be improved.

[0045] The laser head 4 comprises a galvanometer and a field lens, and the combination of the galvanometer and the field lens can realize accurate control and adjustment of the laser beam and improve the machining precision.

[0046] Compared with the prior art, the flight light path with switchable optical path of the utility model, when the laser head moves to the position far away from the laser, the second mirror group is activated to the working state, directly participates in the light path, and the laser beam is guided to the laser head through the shorter path, so that the optical path change caused by the distance increase is compensated; when the laser head is close to the laser, the second mirror group is in the dormant state, exits the light path, and the laser beam is transmitted to the laser head through the first mirror group according to the conventional path; the design of the flight light path with switchable optical path makes the laser processing system be able to be quickly adjusted according to different application scenes and requirements, and be able to adapt to different optical path requirements by switching the state of the second mirror group.

[0047] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the utility model, and these modifications or replacements should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A switchable optical path flying light path, characterized in that, The application relates to a laser beam path device. The first mirror group comprises a first mirror and a second mirror, the first mirror is used for receiving a laser beam shot from a second straight light path and reflecting the laser beam to the second mirror, and the second mirror is used for receiving the laser beam reflected by the first mirror and reflecting the laser beam to a third straight light path.

2. The switchable optical path flight path of claim 1, wherein, The second mirror group comprises a third mirror and a fourth mirror, the third mirror is used for receiving the laser beam shot from the second straight light path and reflecting the laser beam to the fourth mirror, and the fourth mirror is used for receiving the laser beam reflected by the third mirror and reflecting the laser beam to the third straight light path; when the second mirror group is in the working state, the third mirror is located in the second straight light path and blocks the first mirror, the end point of the second straight light path is located on the third mirror, and the start point of the third straight light path is located on the fourth mirror; when the second mirror group is in the dormant state, the third mirror is located outside the second straight light path, the end point of the second straight light path is located on the first mirror, and the start point of the third straight light path is located on the second mirror.

3. The switchable optical path flight path of claim 2, wherein, The second mirror group further comprises a movable seat which is vertically liftable, the third mirror and the fourth mirror are arranged on the movable seat, and the second mirror group is lifted by the movable seat to switch between the working state and the dormant state.

4. The switchable optical path flight path of claim 3, wherein, The laser beam shot by the laser is directly shot to the first mirror group or the second mirror group; or the laser beam path further comprises at least one third mirror group, and the laser beam shot by the laser is reflected by the third mirror group and then shot to the first mirror group or the second mirror group.

5. The switchable optical path flight path of claim 1, wherein, The laser beam is directly shot to the laser head through the first straight light path after being reflected by the first mirror group or the second mirror group; or the laser beam path further comprises at least one fourth mirror group, and the laser beam is reflected by the fourth mirror group after being reflected by the first mirror group or the second mirror group, so as to be shot to the laser head through the first straight light path.

6. The switchable optical path flight path of claim 1, wherein, ​ 7. The switchable optical path flight path of claim 1, wherein, The movement path of the laser head on the first straight light path is divided into a first preset path and a second preset path, the first preset path is close to the starting point of the first straight light path, and the second preset path is close to the terminal point of the first straight light path; when the laser head is located in the first preset path, the second mirror group is in a dormant state; when the laser head is located in the second preset path, the second mirror group is in a working state.

8. The switchable optical path flight path of claim 7, wherein, The optical path range of the second mirror group in the dormant state is the same as the optical path range of the second mirror group in the working state.

9. The switchable optical path flight path of claim 7, wherein, The second mirror group is connected with a driving device, and the driving device is used to drive the second mirror group to move to switch between the dormant state and the working state.

10. The switchable optical path flight path of claim 1, wherein, The laser head comprises a galvanometer and a field lens.

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