Light path adjustable detection system
By designing an optical path adjustable detection system, using the optical path adjustment module, focusing module and detector adjustment module, the problem of difficulty in adjusting the size of optical axis and spots in the prior art is solved, and the accuracy and flexibility of laser detection are improved.
Patent Information
- Application Number
- CN202323638182.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The size of the detector target surface in existing laser processing and detection equipment is small, which makes it difficult to center the processing light and cannot adjust the size of the light spot, affecting the detection accuracy.
An optical path adjustable detection system is designed, including an optical path adjustment module, an optical path focusing module, a detector adjustment module and a spectroscopic module. Through multi-stage adjustment, the optical axis is centered and the spot area is adjusted to ensure that the spot accurately falls on the detector target surface. center.
Improve detection accuracy, avoid light deviation, and achieve adjustability of spot size.
Smart Images
Figure CN222364738U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of laser detection technology, and in particular to a detection system with adjustable optical path. Background Art
[0002] In laser-related processing, the corresponding detection process is indispensable, and accurate detection or data collection is one of the key contents in the production process. The detector target surface size in the laser processing detection equipment in the prior art is small, usually 1-2mm2. When the processing reflected light is refracted and reflected by multiple optical lenses, the optical axis of the processing light is difficult to align, making it difficult for the processing light to reach the center of the target surface. In addition, the existing detection equipment cannot adjust the laser spot size, resulting in problems that affect the detection accuracy. Utility Model Content
[0003] In order to solve one of the above technical problems, the present application provides an adjustable optical path detection system, including an optical path adjustment module for adjusting the optical path, an optical path focusing module for adjusting the size of the light spot area, a detector adjustment module and a detector arranged on the detector adjustment module, wherein the optical path focusing module is connected to the optical path adjustment module, the optical path focusing module is connected to a plurality of light outlet channels, and the detector adjustment module is arranged at the light outlet of the light outlet channel and is used to adjust the position of the detector. The laser enters from the optical path adjustment module, enters the optical path focusing module after passing through the optical path adjustment module, and adjusts the optical path of the laser through the optical path adjustment module so that the optical axis is centered, and then adjusts the position of the detector at the light outlet channel through the detector adjustment module so that the end point of the optical path accurately falls on the target surface center of the detector, and avoids light deviation through multi-level adjustment, and then adjusts the light spot area through the optical path focusing module to ensure that the light spot falls on the target surface center of the detector, thereby improving the detection accuracy.
[0004] Preferably, it further comprises a splitter module connected to the optical path focusing module, a plurality of the light output channels are arranged in the splitter module, and the detector adjustment module is connected to the splitter module. The laser enters the splitter module after the optical path adjustment of the optical path adjustment module and the spot area adjustment of the optical path focusing module, and the splitter module separates the light path from the plurality of light output channels so that the end point of the light path accurately falls on the detector.
[0005] Preferably, the detector adjustment module includes a mounting block for mounting the detector, the mounting block is provided with a mounting hole, a locking piece connected to the spectroscopic module is inserted into the mounting hole, and the diameter of the mounting hole is larger than the diameter of the locking piece. Exemplarily, the locking piece is a bolt, and the outer diameter of the thread of the bolt is smaller than the diameter of the mounting hole, so that when the locking piece is loosened, the position of the mounting block relative to the light output channel is adjusted to adjust the position between the detector and the light path, so that the light path can accurately fall on the center of the target surface of the detector.
[0006] Preferably, the optical splitter module is detachably connected with a visual module at any of the light exit channels. The connection port of the visual module adopts a standard C port of a camera, and is connected and fixed with the external thread of the detector adjustment module through the internal thread of the aperture. Thus, the visual module can be detachably assembled in any channel. The visual module is used to detect the light spot, transmit the picture back in real time, and directly present the internal light path on the display screen to realize the light path visualization function.
[0007] Preferably, the optical path adjustment module includes a fixing seat and a reflector seat arranged on the fixing seat, and the reflector seat is connected to the fixing seat through an adjusting member. After the laser enters the fixing seat from the light inlet of the fixing seat, it is irradiated on the reflector of the reflector seat, and the light path enters the optical path focusing module through reflection by the reflector seat. The angle of the reflector seat is adjusted through the adjusting member, thereby adjusting the offset angle of the light path, so that the optical axis is centered.
[0008] Preferably, a spherical guide groove connected to the optical path focusing module is provided in the fixing seat, and the reflector seat and the spherical guide groove are connected by an elastic member. The elastic member can stretch the spring, and by rotating a plurality of adjusting members on the reflector seat, the pitch angle of the corresponding surface of the side where the adjusting member is located can be controlled, so as to achieve the effect of adjusting the optical path deviation in a large range.
[0009] Preferably, the fixing seat is fixedly connected to the optical path focusing module via an annular clamping block, which is clamped or loosened via screws to fix the fixing seat to the end of the optical path focusing module, facilitating disassembly and installation.
[0010] Preferably, the optical path focusing module comprises a mounting tube with a through hole, and at least one convex lens and a concave lens are arranged in the mounting tube. The convex lens is used to focus the light, and the concave lens is used to diverge the light. By cooperating with the convex lens and the concave lens, the effect of reducing the incident light beam can be achieved, and the degree of reduction of the light beam can be adjusted, so as to adjust the size of the light spot irradiated on the detector.
[0011] Preferably, the inner wall of the installation tube is formed with an internal thread, and the outer peripheral surface of the convex lens is matched with the internal thread. By matching the convex lens with the internal thread, the position of the convex lens in the installation tube is adjusted, and then the distance between the convex lens and the concave lens is adjusted, so as to adjust the degree of reduction of the light beam and thus adjust the spot area.
[0012] Preferably, a boss threadedly connected to the spectroscopic module is formed at the end of the mounting tube, and the concave lens is arranged in the boss. A thread may also be formed on the inner wall of the boss through hole, and the concave lens is connected to the boss by a thread, so that the position of the concave lens in the boss can be adjusted. An external thread is formed on the outer peripheral surface of the boss, and the boss is threadedly connected to the end of the spectroscopic module.
[0013] Compared with the prior art, the beneficial effects of the present application are as follows: the present application scheme connects the optical path adjustment module to the optical path focusing module, the detector is arranged on the detector adjustment module, the end of the optical path focusing module is connected to a plurality of light outlet channels, and the detector adjustment module is arranged at the light outlet of the light outlet channel. The laser enters from the optical path adjustment module, passes through the optical path adjustment module and enters the optical path focusing module, the optical path of the laser is adjusted by the optical path adjustment module so that the optical axis is centered, and then the position of the detector at the light outlet channel is adjusted by the detector adjustment module so that the end point of the optical path accurately falls on the center of the target surface of the detector, and the light deviation is avoided by multi-level adjustment, and then the light spot area is adjusted by the optical path focusing module to ensure that the light spot falls on the center of the target surface of the detector, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the description of the embodiments of the present application or the prior art are briefly introduced below. Obviously, the drawings described below are only part of the embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.
[0015] Figure 1 A cross-sectional view of an adjustable optical path detection system according to an embodiment of the present application;
[0016] Figure 2 This is a schematic diagram of the disassembly of the optical path adjustable detection system according to an embodiment of the present application;
[0017] Figure 3 This is a structural diagram of the detector adjustment module according to an embodiment of the present application.
[0018] Reference numerals
[0019] 10. Optical path adjustment module; 11. Fixed seat; 12. Reflector seat; 13. Adjustment piece; 14. Spherical guide groove; 15. Annular clamping block; 20. Optical path focusing module; 21. Mounting tube; 211. Boss; 22. Convex lens; 23. Concave lens; 24. Internal thread; 30. Detector adjustment module; 31. Mounting block; 32. Mounting hole; 33. Locking piece; 40. Detector; 50. Light output channel; 60. Spectral module; 70. Visual module. DETAILED DESCRIPTION
[0020] The following will disclose multiple embodiments of the present application with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present application. In other words, in some embodiments of the present application, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.
[0021] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.
[0022] In addition, in the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present application. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.
[0023] In order to further understand the content, features and effects of the present application, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:
[0024] In order to solve the above technical problems, this embodiment provides an optical path adjustable detection system, such as Figure 1-2As shown, it includes an optical path adjustment module 10 for adjusting the optical path, an optical path focusing module 20 for adjusting the size of the light spot area, a detector adjustment module 30 and a detector 40 arranged on the detector adjustment module 30, the optical path focusing module 20 is connected to the end of the optical path adjustment module 10, the end of the optical path focusing module 20 is connected to a plurality of light output channels 50, and the detector adjustment module 30 is arranged at the light output port of the light output channel 50. The laser enters from the front end of the optical path adjustment module 10, and enters the optical path focusing module 20 after passing through the optical path adjustment module 10. The optical path of the laser is adjusted by the optical path adjustment module 10 so that the optical axis is centered, and then the position of the detector 40 at the light output channel 50 is adjusted by the detector adjustment module 30, so that after the laser comes out of the light output channel 50, the end point of the optical path accurately falls on the target surface center of the detector 40. The optical path is adjusted through multi-level adjustment to avoid offset between the optical path and the detector 40, and then the spot area is adjusted by the optical path focusing module 20 to ensure that the spot falls into the target surface center of the detector 40, thereby improving the detection accuracy.
[0025] Specifically, it also includes a splitter module 60 connected to the optical path focusing module 20, a plurality of light output channels 50 are arranged in the splitter module 60, and the detector adjustment module 30 is connected to the splitter module 60. After the laser is adjusted by the optical path adjustment module 10 and the spot area is adjusted by the optical path focusing module 20, it enters the splitter module 60, and the splitter module 60 splits the light path from the plurality of light output channels 50 so that the end point of the light path accurately falls on the detector 40.
[0026] In order to adjust the position of the detector 40 at the light outlet channel 50, as shown in FIG. Figure 3 As shown, the detector adjustment module 30 includes a mounting block 31 for mounting the detector 40, the mounting block 31 is provided with a mounting hole 32, a locking member 33 connected to the spectroscopic module 60 is inserted in the mounting hole 32, and the diameter of the mounting hole 32 is larger than the diameter of the locking member 33. The detector 40 is fixed to the mounting block 31 by screws, and a through hole for accommodating the target surface of the detector 40 is provided in the center of the mounting block 31. Exemplarily, the locking member 33 is a bolt, and the outer diameter of the thread of the bolt is smaller than the diameter of the mounting hole 32, and then when the locking member 33 is loosened, the position of the mounting block 31 relative to the light output channel 50 is adjusted to adjust the position between the detector 40 and the optical path, so that the optical path can accurately fall on the center of the target surface of the detector 40. Among them, the optical path adjustment module 10 can be used to adjust the offset of the optical path within the range of 1mm-4mm, and then the detector adjustment module 30 can be used to fine-tune the distance between the detector 40 and the optical path within the range of 0.2mm-1mm, and then the adjustability of the accuracy during the adjustment process is guaranteed through multi-level adjustment to avoid light offset, thereby ensuring that the end point of the optical path falls on the center of the target surface, thereby obtaining accurate detection effects.
[0027] Furthermore, the spectroscopic module 60 is detachably connected with a visual module 70 at any light output channel 50. In some embodiments, a detector adjustment module 30 is provided at each light output channel 50, and the connection port of the visual module 70 adopts a camera standard C port, which is connected and fixed with the external thread of the detector adjustment module 30 through the internal thread of the aperture. Thus, the visual module 70 can be detachably assembled in any channel, and can be installed in the light output channel 50 to be detected according to actual needs. The visual module 70 is used to detect the light spot, transmit the picture back in real time, and directly present the internal light path on the display screen to realize the light path visualization function.
[0028] After the laser enters the optical path adjustment module 10, in order to adjust the optical path of the laser, the optical path adjustment module 10 includes a fixed seat 11, a reflector seat 12 arranged on the fixed seat 11, and the reflector seat 12 is connected to the fixed seat 11 through a plurality of adjustment members 13. After the laser enters the fixed seat 11 from the light inlet of the fixed seat 11, it is irradiated on the reflector of the reflector seat 12, and the light path enters the optical path focusing module 20 through the reflection of the reflector seat 12, and the angle of the reflector seat 12 is adjusted by the adjustment member 13, thereby adjusting the offset angle of the light path, so that the optical axis is centered. Among them, the light inlet of the fixed seat 11 is connected to the laser device.
[0029] Furthermore, a spherical guide groove 14 connected to the optical path focusing module 20 is provided in the fixing seat 11, and the reflector seat 12 is connected to the spherical guide groove 14 via an elastic member. The elastic member can stretch the spring, and by rotating a plurality of adjusting members 13 on the reflector seat 12, the pitch angle of the corresponding surface of the side where the adjusting members 13 are located can be controlled, thereby achieving the offset effect of adjusting the optical path reflection angle.
[0030] In the above scheme, the fixed seat 11 is fixedly connected to the optical path focusing module 20 through the annular clamping block 15, and the annular clamping block 15 is fixedly connected to the fixed seat 11 through screws. The annular clamping block 15 clamps or loosens the optical path focusing module 20 through screws, thereby realizing a detachable fixed connection between the fixed seat 11 and the end of the optical path focusing module 20, which is convenient for disassembly and installation.
[0031] In the above scheme, after the light path enters the light path focusing module 20, in order to adjust the size of the light spot, the light path focusing module 20 includes a mounting tube 21 with a through hole, and at least one convex lens 22 and a concave lens 23 are arranged in the mounting tube 21. The convex lens 22 is used to focus the light, and the concave lens 23 is used to diverge the light. Through the cooperation of the convex lens 22 and the concave lens 23, the effect of reducing the incident light beam can be achieved, and the degree of reduction of the light beam can be adjusted, so as to adjust the size of the light spot irradiated on the detector 40.
[0032] Furthermore, an internal thread 24 is formed on the inner wall of the mounting tube 21, and the outer peripheral surface of the convex lens 22 is threadedly matched with the internal thread 24. By threading the convex lens 22 and the internal thread 24, the position of the convex lens 22 in the mounting tube 21 is adjusted, and then the distance between the convex lens 22 and the concave lens 23 is adjusted, and the degree of light beam reduction is adjusted, and then the spot area is adjusted.
[0033] Furthermore, a boss 211 is formed at the end of the mounting tube 21, which is threadedly connected to the spectroscopic module 60, and the concave lens 23 is disposed in the boss 211. Exemplarily, a thread may also be formed on the inner wall of the through hole of the boss 211, and the concave lens 23 is threadedly connected to the boss 211, so that the position of the concave lens 23 in the boss 211 can be adjusted. An external thread is formed on the outer peripheral surface of the boss 211, and the boss 211 is threadedly connected to the end of the spectroscopic module 60.
[0034] In summary, in one or more embodiments of the present application, the present application connects an optical path adjustment module to an optical path focusing module, a detector is arranged on the detector adjustment module, a plurality of light output channels are connected to the end of the optical path focusing module, and the detector adjustment module is arranged at the light output port of the light output channel. The laser enters from the optical path adjustment module, and enters the optical path focusing module after passing through the optical path adjustment module. The optical path of the laser is adjusted by the optical path adjustment module so that the optical axis is centered, and then the position of the detector at the light output channel is adjusted by the detector adjustment module so that the end point of the optical path accurately falls on the target surface center of the detector. The optical path is adjusted by multi-level adjustment to avoid the offset between the optical path and the detector, and then the light spot area is adjusted by the optical path focusing module to ensure that the light spot falls on the target surface center of the detector, thereby improving the detection accuracy.
[0035] The above-described implementation methods do not constitute a limitation on the protection scope of the technical solution. Any modification, equivalent replacement and improvement made within the spirit and principle of the above-described implementation methods shall be included in the protection scope of the technical solution.
Claims
1. An optical path adjustable detection system, characterized in that: The invention comprises an optical path adjustment module (10) for adjusting an optical path, an optical path focusing module (20) for adjusting the size of a light spot area, a detector adjustment module (30), and a detector (40) arranged on the detector adjustment module (30), wherein the optical path focusing module (20) is connected to the optical path adjustment module (10), a terminal end of the optical path focusing module (20) is connected to a plurality of light exit channels (50), and the detector adjustment module (30) is arranged at a light exit port of the light exit channel (50) and is used to adjust the position of the detector (40).
2. The optical path adjustable detection system according to claim 1, characterized in that: It also includes a light splitting module (60) connected to the light path focusing module (20), a plurality of light output channels (50) are arranged in the light splitting module (60), and the detector adjustment module (30) is connected to the light splitting module (60).
3. The optical path adjustable detection system according to claim 2, characterized in that: The detector adjustment module (30) comprises a mounting block (31) for mounting the detector (40), the mounting block (31) being provided with a mounting hole (32), a locking piece (33) connected to the spectroscopic module (60) being inserted into the mounting hole (32), and the diameter of the mounting hole (32) being larger than the diameter of the locking piece (33).
4. The optical path adjustable detection system according to claim 2, characterized in that: The light splitting module (60) is detachably connected to a visual module (70) at any one of the light exit channels (50).
5. The optical path adjustable detection system according to claim 1, characterized in that: The optical path adjustment module (10) comprises a fixing seat (11) and a reflector seat (12) arranged on the fixing seat (11); the reflector seat (12) is connected to the fixing seat (11) via an adjusting member (13).
6. The optical path adjustable detection system according to claim 5, characterized in that: A spherical guide groove (14) connected to the optical path focusing module (20) is provided in the fixing seat (11), and the reflector seat (12) and the spherical guide groove (14) are connected via an elastic member.
7. The optical path adjustable detection system according to claim 5, characterized in that: The fixing seat (11) is fixedly connected to the optical path focusing module (20) via an annular clamping block (15).
8. The optical path adjustable detection system according to claim 2, characterized in that: The optical path focusing module (20) comprises a mounting tube (21) with a through hole, and at least one convex lens (22) and a concave lens (23) are arranged in the mounting tube (21).
9. The optical path adjustable detection system according to claim 8, characterized in that: An internal thread (24) is formed on the inner wall of the installation tube (21), and the outer peripheral surface of the convex lens (22) is threadably matched with the internal thread (24).
10. The optical path adjustable detection system according to claim 8, characterized in that: A boss (211) threadedly connected to the light splitting module (60) is formed at the end of the mounting tube (21), and the concave lens (23) is arranged inside the boss (211).