Detector protection device and optical detection system

Abstract

The utility model provides a detector protection device, a detector comprises a transmitting end and a receiving end, the detector protection device is arranged at the periphery of the transmitting end and / or the receiving end, and the detector protection device comprises a base, an inner protection shell, an outer protection shell and a protection plate assembly; the base and the inner protective shell surround to form a containing cavity, and the detector is arranged in the containing cavity; the inner protective shell is provided with a first working hole and a lens; the outer protective shell is arranged at the periphery of the inner protective shell and is provided with a second working hole to form a double-shell structure; a protection plate of the protection plate assembly is rotationally connected with the outer protection shell, and the protection plate covers or is separated from the second working hole. A double-shell structure is arranged, so that the detector is comprehensively and effectively protected; the second working hole is protected and shielded by arranging the protective plate assembly, so that metal chips and cooling liquid are prevented from interfering with image acquisition of the detector. The utility model also provides an optical detection system comprising the detector protection device.

Description

Technical Field

[0001] The utility model belongs to the field of measuring equipment, and particularly relates to a protection device for a detector and an optical detection system. Background Art

[0002] Tool wear assessment is one of the important tasks in numerical control machine tool processing, and the accuracy of the assessment will determine the utilization rate of the numerical control equipment and the stability of the production accuracy.

[0003] At present, tool wear assessment and detection are usually realized by combining highly integrated optical sensors and image processing technologies. By using image acquisition technology and complex image analysis algorithms, extremely minute wear and defects of the tool can be identified. After the system data analysis tool completes the extraction of wear characteristics in the image, the condition and process data record of tool wear can be analyzed and tracked, so as to accurately control the tool wear situation, remind the operator to replace the tool in time, or provide the researchers with the analysis of the causes of tool wear. With the popularization of the application of AI (Artificial Intelligence), the above-mentioned analysis of the causes of tool wear will also be processed by the AI system. A large amount of sensor information and image data collected are analyzed, learned, predicted for results, generated models, and self-iterated algorithms by the AI system.

[0004] In order to improve the tool detection efficiency and equipment utilization rate of the equipment, relevant tool wear detectors are generally installed inside the numerical control equipment. However, during the numerical control machining process, a large amount of metal chips and coolant will damage the components in the detector, such as camera lenses, internal electronic components, and wire harnesses. If the detector is set at a position far from the workbench of the numerical control equipment, when detecting the tool, it takes a lot of time to move the tool to be detected into the detection area, resulting in an increase in the non-working time of the equipment and a reduction in the equipment utilization rate. At the same time, the detection process occupies the tool travel of the numerical control equipment, reducing the processing range of the equipment. If the detection instrument is set near the workbench of the numerical control equipment, the existing technical solutions have limited protection for the detection instrument components. During the machining process, the coolant is poured in large quantities to cool the workpiece. Under the impact of the coolant with metal chips, there is a risk that the coolant will penetrate into the protection device and damage the detector. In addition, when detecting the tool, the remaining metal chips and coolant will inevitably appear in the field of view of the detection area, affecting the quality of the collected image, interfering with the analysis of the supporting system or AI system of the detector, and reducing the accuracy of the detection system. Summary of the Invention

[0005] To solve the deficiencies of the aforementioned prior art, the present utility model provides a protection device for a detector. By providing a base and an inner protective shell at the transmitting end and / or receiving end of the detector, and arranging an outer protective shell outside the inner protective shell to form a double-shell structure, and providing a guard plate assembly to cover or separate from the second working hole. Arranging a double-shell structure around the detector improves the protection ability of the detector when working inside a numerical control device. The guard plate assembly is provided to prevent metal chips and coolant from appearing in the detection area of the detector and reduce image acquisition interference. The present utility model also provides an optical detection system including this detector protection device.

[0006] The technical effects to be achieved by the present utility model are specifically realized through the following technical aspects:

[0007] In a first aspect, the present utility model provides a protection device for a detector. The detector includes a transmitting end and a receiving end, and there is a detection area between the transmitting end and the receiving end. The detector protection device is arranged around the transmitting end and / or the receiving end, and includes:

[0008] A base provided with an installation surface, and the detector is fixedly arranged on the installation surface;

[0009] An inner protective shell fixedly arranged on the base and surrounding the installation surface to form a receiving cavity. The transmitting end or the receiving end is arranged in the receiving cavity. The inner protective shell is provided with a first working hole, and a lens is arranged in the first working hole;

[0010] An outer protective shell arranged outside the inner protective shell. The outer protective shell is provided with a second working hole; and

[0011] A guard plate assembly including a driving member and a guard plate, and the guard plate is drivingly connected to the driving member;

[0012] Wherein, under the drive of the driving member, the guard plate is rotatably connected to the outer protective shell, and then the guard plate covers or separates from the second working hole.

[0013] In some embodiments, the outer protective shell is provided with a protection end face. The second working hole extends away from the inner protective shell on the protection end face to form a first boss, and the first boss has an annular structure.

[0014] In some embodiments, the guard plate includes a driving part and a shielding part. The shielding part has an annular structure, and the diameter of the shielding part is greater than or equal to that of the first sealing boss.

[0015] In some embodiments, the outer protective shell is provided with a through hole near the second working hole. The through hole extends away from the inner protective shell on the protection end face to form a second boss, and the second boss has an annular structure.

[0016] In some embodiments, the guard plate assembly further includes a driving rod, which passes through the through hole and the second boss and is respectively connected to the driving member and the driving portion.

[0017] In some embodiments, the protected end face has a normal line L. Taking the direction parallel to the normal line L as the first direction, the driving member can drive the guard plate to move along the first direction.

[0018] In some embodiments, the driving member can also drive the guard plate to rotate relative to the second working hole with the driving rod as the rotation axis.

[0019] In a second aspect, the present invention further provides an optical detection system, including a detector and the detector protection device in any of the above embodiments. The transmitting end and the receiving end are arranged opposite to each other, and the transmitting end and the receiving end are respectively provided with a transmitting port and a receiving port;

[0020] Wherein, detector protection devices are arranged on the outer periphery of the transmitting end and the receiving end, and the transmitting port and the receiving port are respectively opposite to the lens.

[0021] In some embodiments, a first wire passing hole is provided on the mounting surface within the range of the accommodating cavity. The first wire passing hole passes through the inside of the base and connects the accommodating cavities of the transmitting end and the receiving end.

[0022] In some embodiments, an installation bracket is further included. The installation bracket is provided with a base connection portion fixedly connected to the base; on the mounting surface within the range of any of the accommodating cavities, a second wire passing hole penetrating through the base is provided, and the base connection portion is provided with a third wire passing hole communicating with the second wire passing hole; a wiring box is arranged on the side of the base connection portion away from the base, and the third wire passing hole communicates with the wiring box.

[0023] In summary, the present invention has at least the following advantages:

[0024] 1. For the detector protection device provided by the present invention, by providing a base and an inner protection shell, metal chips and coolant are prevented from entering the accommodating cavity. An outer protection shell is further provided to block metal chips and reduce the impact of the coolant, avoiding the penetration of the coolant into the accommodating cavity due to excessive impact of the coolant and damaging the detector. Through the above double-shell structure, the detector installed in the numerical control equipment is comprehensively and effectively protected.

[0025] 2. The detector protection device provided by the present utility model is provided with a guard plate assembly, and the shielding part of the guard plate is used to protect and shield the second working hole. During the machining process of the numerical control equipment, the metal chips and coolant falling at the second working hole are shielded by the guard plate. When the detector collects images, after the guard plate moves away from the first boss and the second working hole, there will be no metal chips and coolant in the range facing the detection area at the second working hole, making the image acquisition accuracy of the detector higher, ensuring the effectiveness and stability of the analysis results; and improving the accuracy and practicality of the corresponding AI tool wear prediction model.

[0026] 3. The optical detection system provided by the present utility model, by setting a first wire passing hole and a second wire passing hole on the bottom plate and a third wire passing hole and a wiring box at the base connecting part, the wire harnesses of the transmitting end and the receiving end can be neatly and orderly connected to the control analyzer matched with the detector, while ensuring that the wire harnesses are inside the numerical control equipment and are not affected by metal chips and coolant. This enables the optical detection system to have better protection ability inside the numerical control equipment, the signals of the transmitting end and the receiving end to be more stable, and the service life to be longer.

[0027] 4. The optical detection system provided by the present utility model, an NC machine tool tool measurement system integrating an optical detector and a protective shell, can greatly improve the accuracy and practicality of the AI tool wear prediction model. Through such a system, the monitoring efficiency of tool wear during the machining process of the NC machine tool can be significantly improved, the accidental downtime can be reduced, the tool service life can be extended, and ultimately the production efficiency and product quality can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an overall axonometric view of the detector mentioned in Embodiment 1.

[0029] Figure 2 It is an axonometric view of the detector with the detector protection device installed in Embodiment 1.

[0030] Figure 3 It is an axonometric view of the detector protection device in Embodiment 1.

[0031] Figure 4 It is Figure 3 the A-A cross-sectional view in

[0032] Figure 5 It is Figure 3 the B-B cross-sectional view in

[0033] Figure 6 It is an axonometric view of one side of the protection end face of the outer protective shell in Embodiment 1.

[0034] Figure 7 It is an axonometric view of one side of the guard plate facing the protection end face in Embodiment 1.

[0035] Figure 8 Schematic diagram of the guard plate moving away from the first boss in Embodiment 1.

[0036] Figure 9 Schematic diagram of the guard plate rotating away from the first boss in Embodiment 1.

[0037] Figure 10 Overall axonometric view of the optical detection system in Embodiment 2.

[0038] Figure 11 For Figure 9 C-C cross-sectional view in

[0039] Figure 12 For Figure 9 D-D cross-sectional view in

[0040] Figure 13 For Figure 9 E-E cross-sectional view in

[0041] Markings in the figure:

[0042] 100 - Detector protection device, 200 - Detector, 300 - Optical detection system;

[0043] 1 - Base, 11 - Mounting surface, 12 - First wire passing hole, 13 - Second wire passing hole;

[0044] 2 - Inner protective shell, 21 - Accommodating cavity, 22 - First working hole, 221 - Lens;

[0045] 3 - Outer protective shell, 31 - Second working hole, 32 - Protective end face, 33 - First boss, 34 - Through hole,

[0046] 35 - Second boss;

[0047] 4 - Guard plate assembly, 41 - Driving part, 42 - Guard plate, 421 - Driving part, 422 - Blocking part, 43 - Driving rod;

[0048] 5 - Transmitting end, 51 - Transmitting port;

[0049] 6 - Receiving end, 61 - Receiving port;

[0050] 7 - Detection area;

[0051] 8 - Mounting bracket, 81 - Base connection part, 811 - Third wire passing hole, 812 - Junction box,

[0052] 82 - Machine tool mounting part, 83 - Adjusting device;

[0053] X - First direction; Detailed implementation method

[0054] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below in conjunction with the accompanying drawings and specific embodiments. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0055] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0056] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0058] Embodiment 1

[0059] The detector 200 is a device for collecting non-electric information of a detection object and converting the non-electric information of the object into an electric signal. Usually, referring to Figure 1 , the detector 200 is provided with a transmitting end 5 and a receiving end 6. Some detectors 200 are only provided with the receiving end 6. The detector 200 mentioned in this embodiment is the former, and the transmitting end 5 and the receiving end 6 are arranged opposite to each other and a detection area 7 is provided.

[0060] When conducting detection, the tool or workpiece is placed in the detection area 7. The physical characteristic information of the tool or workpiece is collected by the detector 200. After the non-electrical information is converted into an electrical signal, the digital conversion of the characteristics of the tool or workpiece is completed. Then, relevant technical analysis and research are carried out on the collected tool or workpiece through the digitized characteristic information. In this embodiment, the detection object is a tool, and in order to improve the detection efficiency of the tool, the detector 200 is fixedly arranged around the workbench of the relevant numerical control equipment.

[0061] To effectively protect the detector 200, this embodiment provides a detector protection device 100, which is arranged around the above-mentioned transmitting end 5 and / or receiving end 6. In some embodiments, the detector protection device 100 can be arranged only around either the transmitting end 5 or the receiving end 6. It can also arrange the transmitting end 5 and the receiving end 6 in separate detector protection devices 100 respectively, or arrange the transmitting end 5 and the receiving end 6 together in a set of detector protection devices 100. The specific setting method of the detector protection device 100 for the transmitting end 5 and the receiving end 6 should be determined according to the specific situation.

[0062] Refer to Figure 2 , in this embodiment, for the convenience of describing the protection effect, the peripheries of the transmitting end 5 and the receiving end 6 are respectively surrounded by independent detector protection devices 100.

[0063] It should be noted that due to different actual situations, such as the shape differences between the transmitting end 5 and the receiving end 6, the position layouts of devices such as solenoid valves and image acquisition converters, there may be size and position differences in multiple detector protection devices 100 and their related features. As Figure 2 shown, the sizes and placement directions of the detector protection devices 100 on the left and right sides are different. However, in this embodiment, the described detector protection devices 100 all have the same structural features. To avoid a lengthy description in the specification, only the detector protection device 100 on the left side in Figure 2 will be described below, and Figure 2 the detector protection device 100 on the right side in

[0064] Refer to Figures 3 - 5, on the detector protection device 100, there are a base 1, an inner protection shell 2 and an outer protection shell 3. The detector 200 is fixedly installed on the installation surface 11 of the base 1. The inner protection shell 2 is also fixed on the base 1 and forms an accommodation cavity 21 with the installation surface 11. The transmitting end 5 or the receiving end 6 of the detector 200 is arranged in the accommodation cavity 21. On one side of the inner protection shell 2, there is a first working hole 22, and a lens 221 is arranged on the first working hole 22. In some embodiments, the lens 221 generally selects a quartz optical lens or a transparent resin optical lens with good light transmittance and less internal impurity components. The arrangement of the first working hole 22 and the lens 221 enables the transmitting end 5 and the receiving end 6 of the detector 200 to work on transmitting or receiving signals through the lens 221 while being isolated from the external space of the inner protection shell 2, protecting the detector 200 from being polluted and damaged by external substances.

[0065] In some embodiments, in order to improve the tightness of protection, a sealing member and a sealing groove for accommodating the sealing member can be arranged between the inner protection shell 2 and the base 1 and / or between the first working hole 22 and the lens 221, or the sealing effect can be achieved through other existing technologies. In this way, after the detector 200 is arranged in the accommodation cavity 21, the detector 200 can be effectively protected, avoiding the influence of substances such as metal chips, coolant, and dust on the components of the detector 200.

[0066] Around the inner protection shell 2, there is an outer protection shell 3 installed on the base 1. When the numerical control equipment is in operation, a large amount of coolant is poured on the cutting tool and the workpiece to be processed, driving the metal chips to flow and cool down. The coolant with metal chips will inevitably splash and impact the surrounding devices. The outer protection shell 3 can effectively slow down the impact of the metal chips and the coolant, reduce the influence on the inner protection shell 2 and the base 1, and avoid the situation of liquid leakage and other sealing failures at the sealing areas between the inner protection shell 2 and the base 1, and between the first working hole 22 and the lens 221 due to large impact. On the outer protection shell 3, there is also a second working hole 31 opposite to the first working hole 22. The detector 200 can work on transmitting or receiving signals through the lens 221 and the second working hole 31.

[0067] On the basis of Figures 3 - 4 , referring to Figure 5, a guard plate assembly 4 is provided on the detector protection device 100, including a driving member 41 and a guard plate 42. In this embodiment, the driving member 41 is fixed to the inner protective shell 2 and is disposed on one side adjacent to the first working hole 22, for example, on one side adjacent to both the first working hole 22 and the base 1. The guard plate 42 is drivingly connected to the driving member 41. Under the drive of the driving member 41, the guard plate 42 is rotatably connected to the outer protective shell 3, so that the guard plate 42 can cover or separate from the second working hole 31. The driving member 41 can be a cylinder or an electric cylinder, and a cylinder is selected in this embodiment. When the detector 200 is in a non-working state, the guard plate 42 covers the second working hole 31 to ensure that metal chips and coolant do not fall into the detection area 7 of the detector 200, avoiding acquisition interference and acquisition errors of the detector 200.

[0068] Refer to Figure 6 , in some embodiments, the outer protective shell 3 is provided with a protective end face 32. The second working hole 31 extends away from the inner protective shell 2 on the protective end face 32 to form a first boss 33. The first boss 33 is arranged in a ring structure on the edge of the second working hole 31.

[0069] In addition, refer to Figure 7 , the guard plate 42 includes a driving portion 421 and a shielding portion 422. The shielding portion 422 is also in a ring structure, and the ring structure of the shielding portion 422 is greater than or equal to the first boss 33. When the guard plate 42 covers the second working hole 31, the ring structure of the shielding portion 422 can wrap and shield the first boss 33, making the protection of the guard plate 42 for the second working hole 31 more effective.

[0070] Further refer to Figures 6 - 7 , in some embodiments, the outer protective shell 3 is provided with a through hole 34 near the second working hole 31. The through hole 34 extends away from the inner protective shell 2 on the protective end face 32 to form a second boss 35. The second boss 35 is also in a ring structure. A corresponding ring structure is also provided around the driving portion 421 of the guard plate 42, and this ring structure is greater than or equal to the second boss 35. While the first boss 33 is wrapped and covered by the shielding portion 422, the second boss 35 is also wrapped and covered, preventing metal chips and coolant from entering the interior of the outer protective shell 3 through the second working hole 31 and the through hole 34.

[0071] Refer to Figure 5 , in some embodiments, the guard plate assembly 4 further includes a driving rod 43. The driving rod 43 passes through the through hole 34 and the second boss 35 and is respectively connected to the driving member 41 and the driving portion 421. In this embodiment, the driving rod 43 is a cylinder rod. When an electric cylinder is used, the driving rod 43 is an electric cylinder rod. Through the driving rod 43, the driving member 41 can control the guard plate 42 to move the shielding portion 422 of the guard plate 42 closer to or away from the first boss 33 and the second working hole 31.

[0072] Based on Figures 3 - 7 , referring to Figure 8 . In some embodiments, the protection end face 32 has a normal line L. Taking the direction parallel to the normal line L as the first direction X, the driving member 41 can drive the guard plate 42 to move along the first direction X, so that the guard plate 42 disengages from the first boss 33 and the second boss 35.

[0073] Referring to Figure 9 , further, the driving member 41 can drive the guard plate 42 to rotate relative to the second working hole 31 with the driving rod 43 as the rotation axis. When the guard plate 42 moves to the position shown in Figure 8 , the guard plate 42 can rotate the shielding portion 422 upward or downward of the second working hole 31 around the driving portion 421 in a plane perpendicular to the first direction X, away from the second working hole 31.

[0074] In other embodiments, the driving member 41 can be selected as a corner pressing air cylinder or a corner pressing piezoelectric cylinder. The driving rod 43 is the rod of the corner pressing air cylinder or the corner pressing piezoelectric cylinder, and can sequentially drive the guard plate 42 to complete the movement along the first direction X and rotate the shielding portion 422 upward or downward of the second working hole 31 around the driving portion 421. While the shielding portion 422 rotates upward or downward of the second working hole 31, due to the working nature and internal structure of the corner pressing air cylinder or the corner pressing piezoelectric cylinder, the driving rod 43 will still drive the guard plate 42 to continue to move along the first direction X, so that the shielding portion 422 presents an effect of spiral movement along the first direction X.

[0075] Referring to Figures 8 - 9 , when it is necessary to detect the tool, after the above-mentioned movement and rotation of the guard plate 42, the shielding portion 422 is away from the first boss 33. Without being blocked by the shielding portion 422, the detector 200 can transmit or receive signals to the outside through the lens 221 and the second working hole 31. As shown in Figure 2 , the detector protection devices 100 are provided at both the relatively arranged transmitting end 5 and the receiving end 6. During the detection, after the guard plates 42 on the left and right sides are away from the first boss 33 and the second working hole 31, the tool moves into the detection area 7, and the relevant parameters of the tool can be detected and collected. After the collection work is completed, the tool leaves the detection area 7, and the guard plate 42 moves in the reverse order of the steps of being away from the first boss 33 and the second working hole 31 at the start of the detection. Finally, the shielding portion 422 wraps and covers the first boss 33 and the second boss 35 to protect the second working hole 31 and the through hole 34, and prevent contaminants such as metal chips and coolant from entering the outer protective shell 3.

[0076] In summary, by providing the base 1 and the inner protective case 2 at the transmitting end 5 and the receiving end 6 of the detector 200, the coolant is prevented from entering the accommodation cavity 21. The outer protective case 3 is further provided to block metal chips and reduce the impact of the coolant, avoiding the infiltration of the coolant into the accommodation cavity 21 due to excessive impact of the coolant and damaging the detector 200. Through the above double-shell structure, the detector 200 installed in the numerical control equipment is comprehensively and effectively protected. In addition, the detector protection device 100 is provided with a guard plate assembly 4, and the second working hole 31 is protected and blocked by the shielding portion 422. During the machining process of the numerical control equipment, the metal chips and coolant that originally fell at the second working hole 31 are blocked outside the detector protection device 100 by the guard plate 42. When the detector 200 collects images, after the guard plate 42 moves away from the first boss 33 and the second working hole 31, there will be no metal chips and coolant in the range facing the detection area 7 at the second working hole 31, making the image collection accuracy of the detector 200 higher, ensuring the effectiveness and stability of the analysis results; it can also improve the accuracy and practicality of the corresponding AI tool wear prediction model.

[0077] Embodiment 2

[0078] Based on Figures 1 - 9 , refer to Figures 10 - 13 . This embodiment provides an optical detection system 300, including a set of detectors 200 and the detector protection device 100 mentioned in Embodiment 1. The detector 200 in this embodiment is an optical detector 200 used for detecting and analyzing the tool wear condition. The optical detector 200 is provided with a transmitting end 5 and a receiving end 6, and a transmitting port 51 and a receiving port 61 are respectively provided at the transmitting end 5 and the receiving end 6.

[0079] In this embodiment, the transmitting end 5 is a light generator that emits a light beam perpendicular to the transmitting port 51 to the outside; the receiving end 6 is an optical acquisition sensor, such as a camera, a photosensitive device, etc., used to obtain the optical information transmitted to the receiving port 61 and convert it into an electrical signal. The tool to be detected is placed in the detection area 7 between the transmitting port 51 and the receiving port 61. The transmitting end 5 emits a light beam, and after being blocked by the tool to be detected, the remaining light enters the receiving port 61 and is collected by the receiving end 6. Through the images continuously collected by the receiving end 6, an image set of the tool edge contour can be obtained, and based on this, the tool wear condition can be analyzed and the tool wear degree can be inferred.

[0080] As Figure 10 shown in Figure 12 and

[0081] In this embodiment, devices such as the solenoid valve for controlling the driving member 41 and the image acquisition converter of the detector 200 are all arranged in the accommodation cavity 21 on the right side. Therefore, in order to meet the space requirements for accommodation, the space of the accommodation cavity 21 on the right side is larger than that on the left side. Additionally, in this embodiment, considering the space and aesthetics of the optical detection system 300, the guard plate assemblies 4 on both the left and right sides are mirror - arranged on the detector protection devices 100 on both the left and right sides along the detection area 7.

[0082] Referring to Figures 10 - 12 , in some embodiments, a first wire - passing hole 12 is provided on the mounting surface 11 within the range of the accommodation cavity 21. The first wire - passing hole 12 passes through the interior of the base 1 and connects the accommodation cavities 21 of the transmitting end 5 and the receiving end 6. Through the first wire - passing hole 12, the relevant wire harnesses of the transmitting end 5 and the receiving end 6 can be connected and gathered, facilitating centralized wiring and routing. And the first wire - passing hole 12 passes through the interior of the base 1, ensuring that within the range of the first wire - passing hole 12, the wire harnesses are not affected by external metal chips and coolant.

[0083] In some embodiments, the optical detection system 300 further includes a mounting bracket 8, and the mounting bracket 8 is provided with a base connection portion 81 fixedly connected to the base 1.

[0084] Based on Figures 10 - 12 , referring to Figure 13 , on the mounting surface 11 within the range of any accommodation cavity 21, a second wire - passing hole 13 penetrating the base 1 is provided. In this embodiment, since the accommodation cavity 21 on the right side is larger, the second wire - passing hole 13 is provided in the accommodation cavity 21 on the right side. And the base connection portion 81 is provided with a third wire - passing hole 811 communicating with the second wire - passing hole 13. For the convenience of display in this embodiment, the third wire - passing hole 811 is set to have the same planar shape and area as the second wire - passing hole 13. In other embodiments, the shape and size of the third wire - passing hole 811 can also be adjusted. The base connection portion 81 is provided with a wiring box 812 at one end away from the base 1, and the above - mentioned third wire - passing hole 811 communicates with the wiring box 812.

[0085] In some embodiments, in order to better protect the wire harness, a seal and / or sealant is provided between the base 1 and the base connection portion 81 and at the installation positions between the base connection portion 81 and the wiring box 812, or other sealing processes are used for sealing. This avoids coolant from seeping into the second wire - passing hole 13, the third wire - passing hole 811, and the interior of the wiring box 812, causing the wire harness of the detector 200 to get damp and preventing the wire harness from aging faster. Further, the wiring box 812 can be cooperatively connected with connectors and bellows with protective performance, so that the wire harness outside the detector protection device 100 can be continuously protected until it reaches the outside of the numerical control equipment and is connected to the total control system.

[0086] By providing a first wire threading hole 12 and a second wire threading hole 13 on the base 1, and a third wire threading hole 811 and a wiring box 812 on the base connecting portion 81, the wire harnesses of the transmitting end 5 and the receiving end 6 can be neatly and orderly connected to the detector 200, the image acquisition converter, and the control system. At the same time, it ensures that the wire harnesses are effectively protected inside the numerical control equipment, not affected by metal chips and coolant. This enables the optical detection system 300 to have better protection inside the numerical control equipment, the signals between the transmitting end 5 and the receiving end 6 to be more stable, and the service life to be longer.

[0087] In addition, as Figures 10 - 12 shown, in this embodiment, the other end of the mounting bracket 8 is provided with a machine tool mounting portion 82 for connecting to the machine tool workbench. The machine tool mounting portion 82 is divided into two parts and connected to the left and right sides of the base connecting portion 81. In some implementation schemes, an adjusting device 83 for adjusting the distance between the base connecting portion 81 and the machine tool mounting portion 82 is further provided on the mounting bracket 8. In this embodiment, the adjusting device 83 is a combination of multiple bolts and nuts. The bolts are fixed to the adjusting base connecting portion 81 and / or the machine tool mounting portion 82, and the distance between the adjusting base connecting portion 81 and the machine tool mounting portion 82 is determined and locked by the nuts to complete the distance adjustment between the base connecting portion 81 and the machine tool mounting portion 82. Of course, the implementation scheme of the adjusting device 83 is not limited to the above combination of multiple bolts and nuts, and can also be any component or part that adjusts the distance between the base connecting portion 81 and the machine tool mounting portion 82. Other implementation schemes of the adjusting device 83 will not be elaborated here.

[0088] By providing the adjusting device 83, the detection area 7 of the optical detection system 300 can be finely adjusted to meet the coordinate setting of the tool travel and the detection position. At the same time, the optical detector 200 is not directly connected to the work platform of the numerical control equipment, reducing the influence of the vibration of the work platform of the numerical control equipment on the optical detection system 300 and improving the working stability of the optical detection system 300.

[0089] The above content is only an example and explanation of the structure of the present utility model. Its description is relatively specific and detailed, but it should not be construed as a limitation of the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these obvious replacement forms all belong to the protection scope of the present utility model.

Claims

1. A detector protection device, wherein the detector comprises a transmitting end and a receiving end, wherein a detection area is provided between the transmitting end and the receiving end, wherein: The detector protection device is arranged at the periphery of the transmitting end and / or the receiving end, and includes: A base is provided with a mounting surface, and the detector is fixedly arranged on the mounting surface; An inner protective shell is fixedly disposed on the base and surrounds the mounting surface to form a receiving cavity, the transmitting end or the receiving end is disposed in the receiving cavity, the inner protective shell is provided with a first working hole, and the first working hole is provided with a lens; An outer protective shell, disposed on the periphery of the inner protective shell, the outer protective shell being provided with a second working hole; and A guard plate assembly, comprising a driving member and a guard plate, wherein the guard plate is drivingly connected to the driving member; Wherein, under the drive of the driving member, the guard plate is rotatably connected to the outer protective shell, so that the guard plate covers or separates from the second working hole.

2. The detector protection device according to claim 1, characterized in that: The outer protective shell is provided with a protective end surface, and the second working hole extends on the protective end surface in a direction away from the inner protective shell to form a first boss, and the first boss is an annular structure.

3. The detector protection device according to claim 2, characterized in that: The guard plate includes a driving portion and a shielding portion, the shielding portion is an annular structure, and the diameter of the shielding portion is greater than or equal to the first boss.

4. The detector protection device according to claim 3, characterized in that: The outer protective shell is provided with a through hole near the second working hole, and the through hole extends on the protective end surface in a direction away from the inner protective shell to form a second boss, and the second boss is an annular structure.

5. The detector protection device according to claim 4, characterized in that: The guard plate assembly also includes a driving rod, which passes through the through hole and the second boss and is respectively connected to the driving member and the driving portion.

6. The detector protection device according to claim 5, characterized in that: The protection end surface has a normal line L, and a direction parallel to the normal line L is a first direction. The driving member can drive the guard plate to move along the first direction.

7. The detector protection device according to claim 6, characterized in that: The driving member can also drive the guard plate to rotate relative to the second working hole with the driving rod as the rotation axis.

8. An optical detection system, characterized in that It comprises a detector and the detector protection device according to any one of claims 1 to 7, wherein the transmitting end and the receiving end are arranged opposite to each other, and the transmitting end and the receiving end are respectively provided with a transmitting port and a receiving port; Wherein, the transmitting end and the receiving end are both provided with detector protection devices on the periphery, and the transmitting port and the receiving port are respectively facing the lens.

9. The optical detection system according to claim 8, characterized in that: A first threading hole is provided on the mounting surface within the range of the accommodating cavity. The first threading hole passes through the interior of the base to connect the accommodating cavity of the transmitting end with the receiving end.

10. The optical detection system according to claim 9, characterized in that: It also includes a mounting bracket, which is provided with a base connecting part fixedly connected to the base; a second threading hole penetrating the base is provided on the mounting surface within the range of any of the accommodating cavities, and the base connecting part is provided with a third threading hole communicating with the second threading hole; the base connecting part is provided with a junction box on a side away from the base, and the third threading hole is communicated with the junction box.

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