A machine tool tool wear detection device

Abstract

The utility model relates to machine tool tool detection technical field, concretely is a machine tool tool wear detection device, including rear box board, one end of rear box board is equipped with high definition camera, one end of high definition camera is equipped with protection mechanism, the protection mechanism includes fixed disc and carousel, the carousel rotation joint is in the middle part of fixed disc, both sides of one end middle part of fixed disc are all fixedly installed with support, the middle part of fixed disc is equipped with through -hole no.

Description

Technical Field

[0001] This utility model relates to the field of machine tool tool testing technology, specifically a machine tool tool wear detection device. Background Technology

[0002] CNC machine tools are short for numerical control machine tools. They are automated machine tools equipped with a program control system. This control system can logically process programs with control codes or other symbolic instructions, decode them, represent them with coded numbers, input them to the CNC device through an information carrier, and after calculation and processing, the CNC device sends out various control signals to control the machine tool's movements, automatically machining parts according to the shape and size required by the drawings.

[0003] In the prior art, Chinese invention with publication number CN118664402B discloses a visual inspection device and method for the wear state of CNC tools, including a transport handrail and a transport base plate disposed at one end of the transport handrail. The transport base plate is provided with a first slide groove and a second slide groove. A rotating component is disposed in the first slide groove. Multiple sets of first connecting blocks are disposed on the rotating component. A first connecting rod is disposed on both sides of each set of first connecting blocks. The end of each first connecting rod away from the first connecting block is connected to a fixed plate. A pressure reducing component is disposed in the second slide groove. A support plate is disposed on the pressure reducing component.

[0004] In the aforementioned technology, the combination of lighting lamps, supplementary lights, and a detection module enables intelligent supplementary lighting for the cutting tools captured by the high-definition camera, ensuring clear images are obtained under different lighting conditions. When the high-definition camera detects the cutting tool, the detection module controls the tool's rotation, facilitating comprehensive image acquisition. Simultaneously, the third electric slide rail and electric hinged slide adjust the high-definition camera's shooting angle, further enhancing the image capture and acquisition effect of the cutting tool body. This image acquisition method significantly increases the accuracy of visual inspection of cutting tool wear. However, the CNC lathes and milling machines in the workshop generate a large amount of metal dust during processing. The aforementioned device does not form an effective barrier structure at the lens, and only achieves basic closure through the front box plate and hinges. There is no design for sealing strips or corresponding filter plates. Dust can seep in through the gap between the front box plate and the test box, and the opening of the placement slot. Furthermore, cutting debris may also adhere to the surface of the tool holder during loading and unloading. These debris and fragments can easily adhere to the surface of the lens, forming dark spots or scattered light spots in the image. If the light spots happen to cover the wear area of ​​the tool, the details of the wear area will be obscured, making it impossible to accurately extract the wear boundary, resulting in distorted test results. Utility Model Content

[0005] The purpose of this invention is to provide a machine tool wear detection device to solve the problems mentioned in the background art.

[0006] To address the aforementioned technical problems, this application provides a machine tool tool wear detection device, comprising a rear box plate. A high-definition camera is mounted at one end of the rear box plate, and a protective mechanism is fitted onto one end of the high-definition camera. The protective mechanism includes a fixed disk and a turntable. The turntable is rotatably engaged with the center of the fixed disk. Supports are fixedly installed on both sides of the center of one end of the fixed disk. A through hole is formed in the center of the fixed disk. A fixed plate is fixedly installed on one side of the fixed disk. A gear is rotatably mounted on one end of the fixed plate. A convex plate is fixedly installed on one side of the turntable. A gear ring is fixedly installed on the outer side of the turntable. Straight guide grooves are formed around the center of the convex plate. A through hole is formed in the center of the convex plate. A groove is formed on the outer side of the other side of the center of the fixed disk. Multiple adjusting slide grooves are formed in the center of the groove. Guide rods are slidably engaged in the center of each of the multiple adjusting slide grooves. A baffle is fixedly installed at one end of each of the multiple guide rods.

[0007] In some embodiments, electric slide rail 1 is fixedly installed above and below the center of one side of the rear box panel, and electric slide rail 2 is slidably connected inside the two electric slide rail 1 through an electric connecting slider.

[0008] In some embodiments, an electric slider is slidably engaged in the middle of the electric slide rail two, and an electric hinged slide table is fixedly installed at one end of the electric slider.

[0009] In some embodiments, a high-definition camera is rotatably mounted in the middle of the electrically hinged slide, and the other ends of the two brackets are respectively fixedly connected to the upper and lower parts of the middle of the high-definition camera.

[0010] In some embodiments, side plates are fixedly installed at both ends of the outer side of the electric hinged slide, and supplementary lights are fixedly installed above and below the middle of the two side plates.

[0011] In some embodiments, the convex plate is slidably engaged in the middle of the groove, and the other ends of the plurality of guide rods are respectively slidably engaged in the middle of the corresponding linear guide groove.

[0012] In some embodiments, the first through hole and the second through hole are connected and are the same size. The lens end of the high-definition camera is located in the first through hole in the middle of the fixed plate. When the multiple baffles are fully spliced ​​together, they can completely close the first through hole and the second through hole.

[0013] In some embodiments, a motor is fixedly mounted on one end of the fixing plate, and the output end of the motor is fixedly connected through the fixing plate and one end of the gear, wherein the gear meshes with the gear ring.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. This utility model provides strong protection for the lens during use, while also ensuring lens cleanliness and testing accuracy. In non-testing states, the protective mechanism achieves full lens enclosure through multiple baffles, effectively isolating dust, cutting fluid mist, and other contaminants at the source, preventing lens dirt from affecting image quality. During testing, the baffles automatically open and close, and with multi-dimensional adjustment and follow-up lighting, it accurately captures details of wear on the blade, blade body, and non-planar surfaces. Furthermore, the support bracket helps to counteract vibration interference, ensuring clear image acquisition and accurate data calculation, reducing the risk of misjudgment and missed judgment.

[0016] 2. This utility model offers strong scenario compatibility during use, covering the inspection needs of various types of cutting tools. The device, through the cooperation of a two-dimensional slide rail and an electrically articulated slide table, enables flexible adjustment of the camera's position and angle, adapting to the inspection needs of different types of cutting tools such as drills, taps, and end mills. It is particularly adept at accurately capturing details of non-planar wear areas, such as chipped cutting edges and worn threads. Simultaneously, the multi-angle follow-up lighting of the supplementary light adapts to different cutting tool materials, such as those with high or low reflectivity, eliminating the need to modify the equipment for a single cutting tool type and significantly expanding its applicability in complex industrial scenarios. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first appearance structure of the present utility model;

[0018] Figure 2 This is a schematic diagram of the second appearance structure of the present utility model;

[0019] Figure 3 This is a schematic diagram showing the connection relationship between the high-definition camera and the protection mechanism of this utility model;

[0020] Figure 4 This is a disassembly diagram of the protective mechanism of this utility model;

[0021] Figure 5 This is an anatomical diagram showing the connection between the fixed disk and the turntable in this utility model.

[0022] Figure 6 This is a schematic diagram of the internal structure of the fixed disk of this utility model.

[0023] In the diagram: 1. Rear box panel; 11. Electric slide rail one; 12. Electric slide rail two; 13. Electric slider; 14. Electric articulated slide table; 15. High-definition camera; 16. Side panel; 17. Fill light; 2. Protection mechanism; 21. Fixed plate; 22. Bracket; 23. Turntable; 24. Gear ring; 25. Convex plate; 26. Linear guide groove; 27. Groove; 28. Adjusting slide groove; 29. ​​Guide rod; 30. Baffle; 31. Fixed plate; 32. Gear; 33. Motor; 34. Through hole one; 35. Through hole two. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figure 1 - Figure 6 This utility model provides a technical solution: a machine tool tool wear detection device, including a rear box plate 1, a high-definition camera 15 at one end of the rear box plate 1, a protective mechanism 2 at one end of the high-definition camera 15, the protective mechanism 2 including a fixed plate 21 and a turntable 23, the turntable 23 being rotatably engaged with the middle of the fixed plate 21, brackets 22 being fixedly installed on both sides of the middle of one end of the fixed plate 21, a through hole 34 being opened in the middle of the fixed plate 21, a fixed plate 31 being fixedly installed on one side of the fixed plate 21, a gear 32 being rotatably installed at one end of the fixed plate 31, a protruding plate 25 being fixedly installed on one side of the turntable 23, a gear ring 24 being fixedly installed on the outer side of the turntable 23, linear guide grooves 26 being opened around the middle of the protruding plate 25, a through hole 35 being opened in the middle of the protruding plate 25, and the middle of the fixed plate 21 being... On the other side, a groove 27 is provided on the outer side. Multiple adjusting grooves 28 are provided in the middle of the groove 27. Guide rods 29 are slidably engaged in the middle of the multiple adjusting grooves 28. A baffle 30 is fixedly installed at one end of each of the multiple guide rods 29. A convex plate 25 is slidably engaged in the middle of the groove 27. The other ends of the multiple guide rods 29 are respectively slidably engaged in the middle of the corresponding straight guide grooves 26. Through hole 1 34 and through hole 2 35 are connected and are the same size. The lens end of the high-definition camera 15 is located in through hole 1 34 in the middle of the fixed plate 21. When the multiple baffles 30 are fully spliced, they can completely close through hole 1 34 and through hole 2 35. A motor 33 is fixedly installed at one end of the fixed plate 31. The output end of the motor 33 passes through the fixed plate 31 and is fixedly connected to one end of the gear 32. The gear 32 meshes with the gear ring 24.

[0026] In this embodiment, physical isolation of contaminants can be achieved, protecting the lens of the high-definition camera 15 from the source and solving the problem of dirt. When the device is not in a detection state, such as standby, tool loading and unloading, or when there is a lot of dust or cutting fluid mist in the workshop, the motor 33 can drive the gear 32 to mesh with the gear ring 24, causing the turntable 23 to rotate relative to the fixed plate 21. The convex plate 25 of the turntable 23 slides synchronously in the groove 27 of the fixed plate 21. The guide rod 29 is pulled along the adjusting slide 28 by the linear guide groove 26, and finally the multiple baffles 30 are completely spliced ​​together, completely sealing the through hole 34 of the fixed plate 21 and the through hole 35 of the convex plate 25. This can directly prevent metal dust, cutting fluid mist, and oil particles in the industrial scene from contacting the lens of the high-definition camera 15, avoiding the problem of image blurring due to dirt adhering to the lens, reducing the frequency of lens cleaning and the risk of wear from the root. The through hole 34 of the fixed plate 21 is precisely aligned with the lens end of the high-definition camera 15, and the baffles 30 form a shape after splicing. The enclosed area completely covers the lens and surrounding gaps, with no blind spots. During inspection, the baffle 30 can be fully opened without affecting the normal framing range of the lens. The protection mechanism 2 achieves automatic opening and closing of the baffle 30 through the mechanical transmission of the motor 33, gear 32, and gear ring 24, which can be linked with the inspection process, such as when image acquisition is started. When the central processing module sends the inspection command, the motor 33 starts synchronously, driving the baffle 30 to separate quickly. At this time, the through hole 1 34 and through hole 2 35 are connected, and the high-definition camera 15 immediately enters the shooting state. The inspection working principle of the high-definition camera 15 is based on the working principle of a visual inspection device and method for the wear state of CNC tools with Chinese patent number CN118664402B. After the inspection is completed, the motor 33 rotates in reverse to close the baffle 30, preventing the lens from being exposed during standby. The entire process requires no manual operation and is compatible with the automated workflow of CNC tool inspection devices, reducing inspection delays or omissions caused by human intervention. By physically isolating dirt and avoiding lens wear, it ensures that the lens is clean and in good condition during each inspection, so that the acquired images of the tool head and body can clearly show wear boundaries such as scratches and chips. The accuracy of image preprocessing steps, such as corner feature extraction and wear value calculation, is greatly improved, reducing the situation of misjudging qualified tools as scrap or missing severely worn tools due to lens problems, which has high practicality.

[0027] Example 2: Figure 1 - Figure 4 As shown, electric slide rail 11 is fixedly installed on the upper and lower sides of the middle of one side of the rear box panel 1. Electric slide rail 12 is slidably connected to the two electric slide rails 11 through an electric connecting slider. Electric slider 13 is slidably engaged in the middle of electric slide rail 12. Electric hinged slide table 14 is fixedly installed at one end of electric slider 13. High-definition camera 15 is rotatably installed in the middle of electric hinged slide table 14.

[0028] In this embodiment, electric slide rail 11 and electric slide rail 2 12 form a cross-shaped two-dimensional adjustment structure through an electric connecting slider: when detecting tools in different placement slots, such as placement slots with different numbers on the front box plate, or different axial positions of the same tool, such as the front end of the tool head, the middle of the tool body, and the tool holder connection, electric slide rail 11 can drive electric slide rail 2 12 to move up and down as a whole, and electric slide rail 2 12 can drive electric slider 13 to slide left and right, so that the high-definition camera 15 can be accurately moved to the target detection position. The electric hinged slide table 14 can drive the high-definition camera 15 to rotate flexibly around the hinge point, such as for pitch adjustment. For non-planar wear areas of CNC tools, such as drill bit edge chipping, tap tooth wear, and end mill end tooth arc wear, the camera angle can be adjusted to clearly capture the three-dimensional wear details that cannot be covered by direct shooting.

[0029] Example 3: As Figure 1 - Figure 4 As shown, the other ends of the two brackets 22 are fixedly connected to the upper and lower parts of the middle of the high-definition camera 15, respectively. Side plates 16 are fixedly installed on both ends of the outer side of the electric hinge slide 14, and fill lights 17 are fixedly installed on the upper and lower parts of the middle of the two side plates 16.

[0030] In this embodiment, one end of each bracket 22 is fixed to the fixed plate 21 of the protection mechanism 2, and the other end is connected to the upper and lower part of the middle of the high-definition camera 15. The bracket 22 can counteract the multi-directional force interference during the detection process, such as slight shaking of the camera caused by workshop vibration and inertial impact force during electric slide rail adjustment, to prevent the camera from angular deviation or loosening. The supplementary light 17 is fixed to the electric hinged slide 14 through the side plate 16 and can adjust the angle synchronously with the slide: when the electric hinged slide 14 drives the camera to rotate, the supplementary light 17 also adjusts the irradiation direction accordingly, always maintaining accurate coverage of the detection area.

[0031] Working principle:

[0032] like Figure 1 - Figure 6As shown, when the device is in standby mode, the protection mechanism 2 is in a closed state. At this time, multiple baffles 30 are spliced ​​together, which can completely seal through holes 1 34 and 2 35, achieving physical protection for the lens of the high-definition camera 15 and preventing contact with contaminants such as metal dust and cutting fluid mist. When the tool needs to be inspected, after the operator sends a detection command from the central processing module, the system simultaneously starts the multi-dimensional adjustment mechanism. The motor 33 of the protection mechanism 2 rotates in reverse, causing the baffles 30 to separate, and through holes 1 34 and 2 35 to become connected, exposing the lens of the high-definition camera 15. The electric slide rail 11 and electric slide rail 2 12 are linked by an electric connecting slider, which can drive the high-definition camera 15 to move precisely in a two-dimensional plane until it reaches the initial position facing the tool in the detection slot. The electric hinged slide 14 drives the high-definition camera 15 to adjust the angle, ensuring that the initial angle of the lens is aligned with the center of the tool head. During this process, two brackets 22 provide auxiliary fixation from above and below the middle of the high-definition camera 15 to counteract vibration and inertial interference and ensure structural stability during the adjustment process. The supplementary light 17, fixed on the side plate 16 of the electric hinged slide 14, is activated synchronously with the camera to illuminate the tool inspection area from multiple angles. The system monitors the light intensity in real time and adjusts the brightness of the supplementary light 17 to keep the illumination within a preset range, ensuring image acquisition quality. The detection working principle of the high-definition camera 15 utilizes the working principle of a visual inspection device and method for CNC tool wear status, as specified in Chinese Patent No. CN118664402B.

[0033] After the test is completed, the system controls the reset of each component: the electric slide rail and the hinged slide table drive the high-definition camera 15 back to the initial position, the motor 33 of the protection mechanism 2 drives the baffle 30 to close again, sealing and protecting the lens, waiting for the next test command. The whole process is fully automated and requires no manual intervention. Through the precise linkage of the mechanical structure and the combination of image algorithms, it can achieve efficient and accurate detection of the wear state of CNC tools, which is suitable for tool quality monitoring scenarios in industrial production.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A machine tool tool wear detection device, comprising a rear housing (1), wherein a high-definition camera (15) is provided at one end of the rear housing (1), and a protective mechanism (2) is sleeved at one end of the high-definition camera (15), characterized in that: The protective mechanism (2) includes a fixed disk (21) and a turntable (23). The turntable (23) is rotatably engaged with the middle of the fixed disk (21). Brackets (22) are fixedly installed on both sides of the middle of one end of the fixed disk (21). A through hole (34) is opened in the middle of the fixed disk (21). A fixing plate (31) is fixedly installed on one side of the fixed disk (21). A gear (32) is rotatably installed on one end of the fixing plate (31). A protruding plate (25) is fixedly installed on one side of the turntable (23). A toothed ring (24) is fixedly installed on the outer side of the turntable (23). A straight guide groove (26) is provided around the center of the convex plate (25). A through hole (35) is provided in the center of the convex plate (25). A groove (27) is provided on the outer side of the other side of the center of the fixed plate (21). A plurality of adjusting slide grooves (28) are provided in the center of the groove (27). A guide rod (29) is slidably engaged in the center of the plurality of adjusting slide grooves (28). A baffle (30) is fixedly installed at one end of the plurality of guide rods (29).

2. The machine tool wear detection device according to claim 1, characterized in that: Electric slide rail 1 (11) is fixedly installed on the upper and lower sides of the middle part of one side of the rear box plate (1), and electric slide rail 2 (12) is slidably connected inside the two electric slide rails 1 (11) through an electric connecting slider.

3. The machine tool wear detection device according to claim 2, characterized in that: The electric slide rail 2 (12) is slidably connected to an electric slider (13) in the middle, and an electric hinged slide table (14) is fixedly installed at one end of the electric slider (13).

4. The machine tool wear detection device according to claim 3, characterized in that: A high-definition camera (15) is rotatably mounted in the middle of the electric hinged slide (14), and the other ends of the two brackets (22) are respectively fixedly connected to the upper and lower parts of the middle of the high-definition camera (15).

5. The machine tool tool wear detection device according to claim 4, characterized in that: Side plates (16) are fixedly installed at both ends of the outer side of the electric hinge slide (14), and supplementary lights (17) are fixedly installed above and below the middle of the two side plates (16).

6. The machine tool tool wear detection device according to claim 1, characterized in that: The convex plate (25) is slidably engaged in the middle of the groove (27), and the other ends of the plurality of guide rods (29) are respectively slidably engaged in the middle of the corresponding linear guide grooves (26).

7. The machine tool tool wear detection device according to claim 6, characterized in that: The through hole one (34) and through hole two (35) are connected and are the same size. The lens end of the high-definition camera (15) is located in the through hole one (34) in the middle of the fixed plate (21). When the multiple baffles (30) are fully spliced ​​together, they can completely close the through hole one (34) and through hole two (35).

8. The machine tool tool wear detection device according to claim 1, characterized in that: A motor (33) is fixedly installed at one end of the fixed plate (31). The output end of the motor (33) passes through the fixed plate (31) and is fixedly connected to one end of the gear (32). The gear (32) meshes with the gear ring (24).

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