CN220206629U

CN220206629U - Laser light path quantitative detection tool

Info

Publication number: CN220206629U
Application number: CN202321601795.2U
Authority: CN
Inventors: 胡小全; 王俊奇; 彭启; 司家盛
Original assignee: Suzhou Beifeng Intelligent Technology Co ltd
Current assignee: Suzhou Beifeng Intelligent Technology Co ltd
Priority date: 2023-06-23
Filing date: 2023-06-23
Publication date: 2023-12-19
Anticipated expiration: 2033-06-23

Abstract

The application discloses laser light path ration detects instrument includes: a base; the semi-enclosed shell is arranged above the base and fixed on two sides of the base along the width direction, an installation space is formed by enclosing the semi-enclosed shell and the base, and openings are formed at two ends of the installation space in the length direction of the base; the flange plate is used for fixing the optical component to be tested, the flange plate is covered on the opening at one end of the installation space to close the opening, and the flange plate is provided with a light through hole which is used for butt-jointing the laser output port of the optical component to be tested; the sliding component is arranged on the base along the length direction and is positioned in the installation space; the optical sensor is used for detecting laser power and detecting the coordinate position of the laser spot center under the coordinate system of the optical sensor, the optical sensor is arranged on the sliding component, and the measuring end of the optical sensor faces the flange plate. The laser light path quantitative detection tool has the functions of power measurement and centering detection, and is simple in structure.

Description

Laser light path quantitative detection tool

Technical Field

The utility model relates to the technical field of laser detection, in particular to a laser path quantitative detection tool.

Background

The laser processing device (such as a laser welding head and a laser cleaning head) has excellent processing performances of no contact, no pollution and the like, and is widely applied, and the laser processing device comprises optical devices such as a collimating head, a focusing lens and the like, wherein the collimating lens is used for collimating divergent laser beams emitted by a laser emitting device into parallel laser beams, when an emitting port of the laser emitting device is concentric with the collimating lens, the laser beams are not centered, the quality of a laser path is attenuated, and even the laser beams are directly biased to the components, so that the components are damaged.

In order to ensure the collimation precision of the collimation lens, the assembly precision is generally improved by finish machining in the prior art, so that the concentricity of the emission port of the laser emission device and the collimation lens is ensured, but in the actual assembly process, uncontrollable factors still exist to influence the concentricity of the emission port of the laser emission device and the collimation lens. Or, through setting up two and can be followed the horizontal direction and be close to each other or keep away from the plate body, have arranged the logical unthreaded hole respectively on two plate bodies, make two logical unthreaded holes coaxial, during the detection, make the emission port butt joint one of them plate body's logical unthreaded hole of laser emitter, remove two plate bodies so that two plate bodies keep away from continuously, whether can keep through another logical unthreaded hole through the laser beam that observe laser emitter sent, with regard as the evaluation standard of the concentricity of emission port and collimating mirror of laser emitter, thereby provide unified standard for optics to neutral detection, but be difficult to obtain accurate measurement data, lead to follow-up calibration trouble. Meanwhile, laser power calibration is needed before the laser processing equipment is used, and an additional detection device is needed for detection, so that the whole detection process is tedious and inconvenient to operate.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the laser light path quantitative detection tool which simultaneously has the functions of detecting the optical neutrality of the emission port of the laser emission device and the collimating mirror and detecting the laser power, has simple structure and convenient operation, and has accurate measurement data so as to be convenient for subsequent calibration.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a laser path quantitative detection tool comprising:

a base;

the semi-enclosed shell is arranged above the base and fixed on two sides of the base along the width direction, an installation space is formed by enclosing the semi-enclosed shell and the base, and openings are formed at two ends of the installation space in the length direction of the base;

the flange plate is used for fixing the optical component to be tested, the flange plate covers the opening at one end of the installation space to close the opening, and the flange plate is provided with a light through hole which is used for butt-jointing the laser output port of the optical component to be tested;

the sliding component is arranged on the base along the length direction and is positioned in the installation space; and

the optical sensor is used for detecting laser power and detecting the coordinate position of the laser spot center under the coordinate system of the optical sensor, the optical sensor is arranged on the sliding component, and the measuring end of the optical sensor faces the flange plate.

Further, the optical sensor comprises a mounting shell, a sensor main body arranged in the mounting shell and a sensor transmitter electrically connected with the sensor main body, wherein the sensor transmitter is arranged outside the semi-surrounding shell;

the utility model discloses a sensor, including flange board, mounting shell, light-passing hole, the mounting shell is dorsad the one end of flange board is formed with the thermovent, the mounting shell is dorsad the one end of flange board is provided with and is used for fixing the fixed plate of sensor main part, be provided with the detection hole on the fixed plate, the detection hole with the axis collineation of light-passing hole.

Further, the sensor main body comprises a measuring unit fixed on the fixed plate and a heat radiating unit arranged on one end of the measuring unit far away from the flange plate, and at least part of the heat radiating unit extends out of the heat radiating opening.

Further, the heat dissipation unit comprises a heat dissipation rib group with one end connected to the measurement unit and a heat dissipation fan connected to the other end of the heat dissipation rib group, and the heat dissipation rib group comprises a plurality of heat dissipation ribs which are arranged at equal intervals.

Further, the measuring unit comprises a protective shell, a measuring head arranged in the protective shell and a threaded hole arranged on the protective shell, the measuring head is collinear with the axis of the detection hole, a fixing hole which is in one-to-one arrangement with the threaded hole is arranged on the fixing plate, and the fixing hole is matched with a threaded fastener to lock the relative position of the measuring unit and the fixing plate.

Further, a movable wrench is provided on the mounting case, a sliding channel is provided on the semi-surrounding case along the length direction of the base, and the movable wrench protrudes from the sliding channel and is configured to reciprocate along the sliding channel.

Further, one end of the sliding component, which is far away from the flange plate, is provided with a limiting block, and the height D of the limiting block is smaller than the height D1 of the opening and larger than the height D2 of the sliding component.

Further, the sliding assembly comprises a sliding rail and a sliding block matched with the sliding rail, wherein the sliding rail is arranged on the base, and the sliding block is fixed at the bottom of the mounting shell.

Further, the laser light path quantitative detection tool further comprises a control end, and the control end is electrically connected with the sensor main body through the sensor transmitter.

Further, the control end is provided with a control screen, and the control screen is used for displaying the detection result of the optical sensor.

Due to the application of the technical scheme, the application has the beneficial effects compared with the prior art that:

the utility model provides a laser light path ration instrument of detecting through set up on the subassembly that slides have simultaneously detect laser power and detect the laser facula center in the optical sensor's self coordinate system under the coordinate position function, drive this optical sensor through the subassembly that slides and be close to or keep away from the optical component that awaits measuring to realize the laser power and the optics to the detection of neutrality of treating the optical component that awaits measuring, thereby guarantee the collimation effect of collimating mirror and the accurate laser power of laser processing equipment.

Meanwhile, since the laser processing equipment is required to correct the laser power of the laser emission device before use, the laser power detection and the optical centering detection are set into an integral structure, detection operation steps can be reduced, detection efficiency is improved, and two detection purposes are realized by combining the optical sensor with two detection functions with the sliding component, so that the laser light path quantitative detection tool is simple in integral structure and convenient to operate.

In addition, set up half surrounding shell and base and enclose and establish the installation space that forms a both ends open-ended, when satisfying the detection function, can reduce the outward scattering of laser to protect the operator, in order to improve the safety in utilization of laser light path ration instrument.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a quantitative detection tool for a laser path according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the internal structure of the laser path quantitative detection tool shown in FIG. 1;

fig. 3 is a schematic view of the internal structure of the optical sensor shown in fig. 2.

Reference numerals illustrate:

1-a base; 2-semi-enclosing a housing; a 21-L-shaped side plate; 22-top plate; 3-flange plates; 31-a light-passing hole; 4-a slip assembly; 41-a slip track; 42-sliding blocks; 5-an optical sensor; 51-mounting a shell; 511-a heat sink; 512-a fixed plate; 513-detection wells; 514-a mobile wrench; 52-a sensor body; 521-radiating rib groups; 522—a heat dissipation fan; 523-a protective housing; 524-measuring head; 53-sensor transmitter; 6-installation space; 61-opening; 7-sliding channels; 8-limiting blocks.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 3, an embodiment of the present utility model provides a laser light path quantitative detection tool, which includes a base 1, a semi-surrounding housing 2, a flange plate 3, a sliding component 4, an optical sensor 5 and a control end (not shown). The base 1 is used for contacting with a placing surface, the flange plate 3 is used for fixing an optical component to be tested (not shown), the measuring end of the optical sensor 5 faces the flange plate 3 to face the optical component to be tested, the optical sensor 5 is used for detecting laser power, and meanwhile, the base can also be used for detecting the coordinate position of the laser spot center under the self coordinate system of the optical sensor 5 so as to detect the optical neutrality of the optical component to be tested. Meanwhile, the semi-surrounding shell 2 can reduce outward scattering of laser, so that an operator is protected, and the use safety of the laser light path quantitative detection tool is improved. The optical component to be tested is an optical component with a laser emitting device capable of emitting laser, and the optical component can be provided with a collimating mirror for collimating the laser emitted by the laser emitting device.

It should be noted that, the optical sensor 5 is specifically a beam track series of laser measurement sensors, and the series of laser measurement sensors can measure the size, position, power and energy of the laser beam, which are not described herein.

The width direction of the base 1 is shown by an arrow a in fig. 1, the length direction of the base 1 is shown by an arrow b in fig. 1, and the height direction is shown by an arrow c in fig. 1.

In detail, the semi-enclosed housing 2 is disposed above the base 1 and fixed on two sides of the base 1 along the width direction, the semi-enclosed housing 2 and the base 1 enclose a mounting space 6, and the mounting space 6 has openings 61 formed at two ends of the base 1 along the length direction. The flange plate 3 is covered on the opening 61 at one end of the installation space 6 to close the opening 61, and the flange plate 3 is provided with a light through hole 31, and the light through hole 31 is used for butt joint with a laser output port of the optical component to be tested. In order to facilitate the fixing of the optical component to be tested on the flange plate 3, in this embodiment, the flange plate 3 is provided with positioning pin holes (not numbered) and connecting screw holes (not numbered).

The sliding component 4 is arranged on the base 1 along the length direction and is positioned in the installation space 6, and the optical sensor 5 is arranged on the sliding component 4 to reciprocate along the length direction of the base 1 under the drive of the sliding component 4 so as to be close to or far away from the optical component to be detected, so that the optical neutrality of the optical component to be detected is detected. In this embodiment, the sliding component 4 includes a sliding block 42 along the sliding rail 41 and matched with the sliding rail 41, the sliding rail 41 is disposed on the base 1, and the sliding block 42 is fixed at the bottom of the optical sensor 5. Indeed, in other embodiments, the sliding component 4 may be configured in other conventional sliding structures, such as a mating structure of a rail and a roller, which is not illustrated herein.

The optical sensor 5 includes a mounting case 51, a sensor main body 52 provided in the mounting case 51, and a sensor transmitter 53 electrically connected to the sensor main body 52, the sensor transmitter 53 being disposed outside the semi-surrounding case 2. The control end is connected to the sensor body 52 via a sensor transducer 53. The sensor transmitter 53 is arranged outside the semi-surrounding shell 2 so as to avoid that the sensor transmitter 53 shields the light path and is convenient to be connected with an external control end. In order to facilitate the operator to intuitively understand the detection result of the optical sensor 5, the control end further has a control screen, where the control screen is used to display the detection result of the optical sensor 5, which is not described in detail herein.

In this embodiment, a heat dissipation opening 511 is formed at an end of the mounting case 51 facing away from the flange plate 3, a fixing plate 512 for fixing the sensor body 52 is provided at an end of the mounting case 51 facing toward the flange plate 3, and a detection hole 513 is provided on the fixing plate 512, and the detection hole 513 is collinear with the axis of the light transmission hole 31. The heat dissipation of the sensor main body 52 is achieved by providing the heat dissipation port 511, so that the detection accuracy of the sensor main body 52 is prevented from being affected by the excessive temperature. Note that, the axis of the light-transmitting hole 31 is shown by an arrow d in fig. 3,

in order to further improve the heat dissipation effect, the sensor main body 52 is further provided with a heat dissipation structure, specifically, the sensor main body 52 includes a measuring unit fixed on the fixing plate 512 and a heat dissipation unit mounted on an end of the measuring unit far from the flange plate 3, and at least part of the heat dissipation unit extends out of the heat dissipation opening 511. By extending part of the heat dissipating unit out of the heat dissipating opening 511, the heat exchanging effect between the heat dissipating unit and the outside air is improved, and the heat dissipating efficiency is improved.

In this embodiment, the heat dissipating unit includes a heat dissipating rib group 521 with one end connected to the measuring unit and a heat dissipating fan 522 connected to the other end of the heat dissipating rib group 521, and the heat dissipating rib group 521 includes a plurality of heat dissipating ribs arranged at equal intervals. Indeed, in other embodiments, the heat dissipating unit may be configured as only the heat dissipating fan 522, or only the heat dissipating rib group 521, or may be configured as liquid cooling heat dissipation, etc. as is conventional.

In this embodiment, the measuring unit includes a protective housing 523, a measuring head 524 disposed in the protective housing 523, and a threaded hole (not numbered) disposed on the protective housing 523, where the measuring head 524 is collinear with the axis of the detecting hole 513, so that the axes of the detecting hole 513, the light passing hole 31, and the measuring head 524 are collinear to ensure that the laser can be accurately emitted onto the measuring head 524, and ensure the detection accuracy. In order to fix the measuring unit on the fixing plate 512, fixing holes (not numbered) which are arranged one to one with the threaded holes are further arranged on the fixing plate 512, and the fixing holes, the threaded holes and the threaded fasteners (not numbered) are matched to lock the relative positions of the measuring unit and the fixing plate 512.

In order to facilitate control of the relative position between the optical sensor 5 and the optical component to be tested, the mounting case 51 is provided with a moving spanner 514, the semi-surrounding case 2 is provided with a sliding channel 7 arranged along the length direction of the base 1, and the moving spanner 514 protrudes from the sliding channel 7 and is configured to be reciprocally movable along the sliding channel 7.

In this embodiment, the mobile wrench 514 is disposed on top of the mounting case 51, the semi-surrounding case 2 includes two opposite L-shaped side plates 21 and a top plate 22 spanning over the two L-shaped side plates 21, a sliding channel 7 disposed along the length direction of the base 1 is formed between the top plate 22 and at least one L-shaped side plate 21, and the mobile wrench 514 protrudes from the sliding channel 7 and is configured to be reciprocally movable along the sliding channel 7. Indeed, in other embodiments, the movable wrench 514 may be disposed on two sides of the mounting housing 51 in the width direction of the base 1, and the sliding channel 7 is correspondingly disposed on two sides of the semi-surrounding housing 2 in the width direction of the base 1, which is not limited herein.

It should be noted that the movement of the movable wrench 514 may be manually controlled by an operator, or may be automatically controlled by an electric push rod or an electric cylinder, which are all conventional, and the present application is not limited thereto and may be adjusted in combination with design requirements.

In order to avoid that the optical sensor 5 slips on the sliding rail 41 due to an operation error when the optical sensor 5 is manually controlled to move, in this embodiment, a stopper 8 is disposed at an end of the sliding component 4 away from the flange plate 3, and a height D of the stopper 8 is smaller than a height D1 of the opening 61 and larger than a height D2 of the sliding component 4. By setting the relation between the height D of the limiting block 8, the height D1 of the opening 61 and the height D2 of the sliding component 4 to D2 < D1, the limiting block 8 can limit the optical sensor 5 from sliding backwards along the sliding track 41, and meanwhile, the limiting block 8 does not completely seal the opening 61, so that the air flow in the installation space 6 is ensured, and the heat dissipation effect is ensured.

Taking the embodiment as an example, the specific operation flow of the laser light path quantitative detection tool for detecting the centering of the optical component to be detected is as follows: (1) Fixing the optical component to be tested on the flange plate 3 and enabling a laser output port of the optical component to be tested to be in butt joint with the light transmission port; (2) The optical sensor 5 is manually moved to one end where the optical component to be detected is located, 50W excites laser, and a control screen connected with the sensor transmitter 53 is used for checking the central coordinate position 1 of the light spot; (3) The optical sensor 5 is manually moved to one end far away from the optical component to be detected, 50W excites laser, and a control screen connected with the sensor transmitter 53 is used for checking the central coordinate position 2 of the light spot; (4) The optical neutrality of the detected optical assembly is determined by the change in the values of position 2 and position 1.

Taking the embodiment as an example, the specific operation flow of the laser light path quantitative detection tool for measuring and calibrating the power of the optical component to be measured is as follows: (1) Fixing the optical component to be tested on the flange plate 3 and enabling a laser output port of the optical component to be tested to be in butt joint with the light transmission port; (2) The optical sensor 5 is manually moved to one end where the optical component to be detected is located, laser is excited, and the laser power is checked through a control screen connected with the sensor transmitter 53; (3) And changing laser output power at intervals of 10W, recording measured values, and inputting the results into a laser power correction table of the SLM equipment.

Finally, it should be noted that the foregoing description is only a preferred embodiment of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, and any modifications, equivalents, improvements or changes thereof may be made without departing from the spirit and principle of the present utility model.

Claims

1. The utility model provides a laser light path ration instrument of detecting which characterized in that includes:

a base;

2. The laser light path quantitative detection tool according to claim 1, wherein the optical sensor comprises a mounting case, a sensor body disposed in the mounting case, and a sensor transmitter electrically connected to the sensor body, the sensor transmitter being disposed outside the semi-surrounding case;

3. The laser light path quantitative determination tool according to claim 2, wherein the sensor body includes a measuring unit fixed to the fixing plate and a heat radiation unit mounted on an end of the measuring unit remote from the flange plate, at least a part of the heat radiation unit protruding from the heat radiation port.

4. The laser light path quantitative detection tool according to claim 3, wherein the heat radiation unit comprises a heat radiation rib group with one end connected to the measurement unit and a heat radiation fan connected to the other end of the heat radiation rib group, and the heat radiation rib group comprises a plurality of heat radiation ribs which are arranged at equal intervals.

5. The laser light path quantitative determination tool according to claim 3 or 4, wherein the measurement unit comprises a protective housing, a measurement head arranged in the protective housing, and a threaded hole arranged on the protective housing, the measurement head is collinear with the axis of the detection hole, the fixing plate is provided with a fixing hole which is arranged one to one with the threaded hole, and the fixing hole, the threaded hole and a threaded fastener are matched to lock the relative positions of the measurement unit and the fixing plate.

6. The laser light path quantitative determination tool according to claim 2, wherein a movable spanner is provided on the mounting case, a sliding passage arranged along a length direction of the base is provided on the semi-surrounding case, and the movable spanner protrudes from the sliding passage and is configured to be reciprocally movable along the sliding passage.

7. The laser path quantitative detection tool according to claim 1, wherein a limiting block is arranged at one end of the sliding component, which is far away from the flange plate, and the height D of the limiting block is smaller than the height D1 of the opening and larger than the height D2 of the sliding component.

8. The laser path quantitative determination tool of claim 6, wherein the slip assembly comprises a slip rail and a slip block cooperating with the slip rail, the slip rail being disposed on the base, the slip block being secured to the bottom of the mounting housing.

9. The laser light path quantitative detection tool of claim 2, further comprising a control end electrically connected to the sensor body through the sensor transmitter.

10. The laser path quantitative detection tool of claim 9, wherein the control end is provided with a control screen, and the control screen is used for displaying the detection result of the optical sensor.