Tool wear detection device

Abstract

The invention discloses a cutter wear detection device, and relates to the field of cutter detection, the cutter wear detection device comprises a workbench, two symmetrically fixed supporting blocks above the workbench, a detection mechanism located between the two supporting blocks, and a moving block slidably arranged on the workbench, the workbench is provided with a sliding through groove, and the moving block is arranged in the sliding through groove. The detection mechanism comprises a U-shaped plate, a light shield and a wiping assembly, the outer walls of the two sides of the U-shaped plate are connected with the supporting blocks in an up-down sliding mode, a camera is installed at the bottom of the inner wall of one side of the U-shaped plate, the light shield is used for reducing the situation that external strong light directly irradiates a lens of the camera, and the wiping assembly is used in cooperation with the rack. The wiping assembly is used for wiping a lens of the camera and protecting the lens when the lens is not used. Dust on the camera lens can be effectively removed, the dust is prevented from forming a covering layer, light scattering and refraction are reduced, and the definition of images and the accuracy of detection results are ensured.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of tool detection, and specifically provides a tool wear detection device. Background Art

[0002] As a core tool in machining, the performance and condition of a tool have a direct impact on machining accuracy, production efficiency, and product quality. The wear condition of the tool has become a key indicator for measuring the stability and economy of the machining process. Therefore, detecting tool wear has a dual significance of ensuring machining quality and extending the service life of the tool.

[0003] A superhard tool wear detection device described in the prior art includes a support table. A box body is fixedly connected to the upper left side of the support table. An adjustment frame is fixedly connected to the right side of the box body. An adjustment groove is provided through the right side of the adjustment frame. A first motor is provided through the upper end of the adjustment groove. A motor shaft extends from the lower end of the first motor, and a second lead screw is fixedly connected to the lower end of the motor shaft. The second lead screw is arranged inside the adjustment groove. A second moving block is provided through the second lead screw. The second moving block is threadedly connected to the second lead screw. A support frame is fixedly connected to the right side of the second moving block and relative to the right side of the adjustment frame. A U-shaped frame is fixedly connected to the right side of the support frame. A camera is provided on the left inner side of the U-shaped frame.

[0004] Although the above technology can effectively detect the wear of the tool edge at multiple angles and improve the detection accuracy, when detecting through the camera, it may be interfered by dust in the air. Dust particles will adhere to the camera lens, forming a thin covering layer, resulting in scattering and refraction of light when passing through, making the image blurred and affecting the accuracy of the detection result. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a tool wear detection device to solve the technical problems proposed in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A tool wear detection device includes a workbench, two symmetrically fixed support blocks above, a detection mechanism located between the two support blocks, and a moving block slidably arranged on the workbench. A sliding through groove is provided on the workbench, and the moving block is arranged in the sliding through groove. An installation plate is fixedly screwed to the upper surface of the moving block, and a bottom plate is fixedly connected to one side of the upper surface of the installation plate. A vertical rack is fixedly connected to the end of the upper surface of the bottom plate. The detection mechanism includes a U-shaped plate, a light-shielding cover, and a wiping assembly. The outer walls on both sides of the U-shaped plate are slidably connected to the support blocks up and down. A camera is installed at the bottom of one inner wall of the U-shaped plate. The light-shielding cover is used to reduce the direct irradiation of external strong light onto the lens of the camera. The wiping assembly is used in cooperation with the rack, and the wiping assembly is used to wipe the lens of the camera and protect it when not in use.

[0007] Preferably, according to any of the above solutions, the wiping assembly includes a fixing plate located in front of the lens of the camera. A wiping sponge is adhered to the outer wall of the fixing plate, and the wiping sponge is in contact with the lens of the camera. An L-shaped connecting rod is fixed to the other outer wall of the fixing plate. The L end of the L-shaped connecting rod is connected to a lifting plate. A lifting through groove is opened on one side of the groove wall of the U-shaped plate. The end of the lifting plate is located in the lifting through groove and is slidably connected to its inner wall; A cavity is opened at the inner bottom of the groove wall of the U-shaped plate. A through groove is penetrated through the groove wall of the U-shaped plate, and the through groove is matched with the rack. A horizontal transmission shaft rod is rotatably installed inside the cavity. A driving gear is fixedly sleeved on the transmission shaft rod. A square groove communicating with the through groove is opened at the position of the cavity where the through groove is located. One tooth surface of the driving gear passes through the square groove and is located in the through groove. The tooth surface of the rack is meshed and connected with the tooth surface of the driving gear; One end of the transmission shaft rod is flange-connected with a worm. The end face of the worm is rotatably connected to the inner wall of the cavity. A worm gear is meshed on one side of the worm. A lead screw is fixedly penetrated through the center of the worm gear. The top end of the lead screw penetrates through the cavity and extends into the lifting through groove. The top end of the lead screw is rotatably connected to the top wall of the lifting through groove. The lifting plate is sleeved on the lead screw and is in threaded meshing connection with the contact part. This preferred solution can effectively remove the dust on the lens of the camera, prevent the formation of a dust covering layer, reduce the scattering and refraction of light, and ensure the clarity of the image and the accuracy of the detection result.

[0008] Preferably, according to any of the above solutions, a ventilation fan is embedded in the top of the wall body of the U-shaped plate away from the camera. A dust filter screen is installed by screws at the position of the ventilation fan on the outer wall of the U-shaped plate, and a top plate is fixed above the ventilation fan on the inner wall top of the U-shaped plate. This preferred solution can promote the air circulation inside the U-shaped plate, reduce the accumulation of internal heat, and filter the dust particles in the air, further protecting the camera.

[0009] Preferably, according to any of the above solutions, a second conductive block is installed on the lower surface of the top plate, and the second conductive block is electrically connected to the ventilation fan. A first conductive block is installed on the upper surface of the lifting plate arranged in the wiping assembly, and the first conductive block is matched with the second conductive block. This preferred solution increases the degree of intelligence and can automatically start the ventilation fan when the wiping assembly works.

[0010] Preferably, according to any of the above solutions, the light shield is L-shaped, adhesively connected to the outer wall of the U-shaped plate, and made of a diffuser plate. This preferred solution can not only reduce the interference of strong light, but also prevent dust from directly adhering to the camera lens to a certain extent, further improving the clarity of the image.

[0011] Preferably, according to any of the above solutions, a moving groove is formed on one side of each of the two support blocks close to the U-shaped plate. Ear plates are installed on both outer walls of the U-shaped plate by screws. The ends of the two ear plates are located in the moving grooves and are slidably connected thereto. Hydraulic cylinders are installed on the tops of the two support blocks by screws. The output ends of the two hydraulic cylinders are fixedly screwed to the upper surfaces of the ear plates. This preferred solution can control the U-shaped plate to move down to a suitable position when detecting the wear of the tool.

[0012] Preferably, according to any of the above solutions, electric slide rails are installed on both inner walls of the sliding through groove by screws. Sliders are installed on both outer walls of the moving block by screws. The two sliders are slidably connected to the electric slide rails. The outer wall of the mounting plate is in contact with the inner wall of the sliding through groove. A tool placement sleeve is provided on the mounting plate. A driving motor is installed on the lower surface of the moving block by screws. The output end of the driving motor passes through the moving block and is fixedly screwed to the tool placement sleeve. This preferred solution improves the automation degree of the device, can accurately control the position of the tool, and improves the accuracy and efficiency of detection.

[0013] Preferably, according to any of the above solutions, a display screen is installed on the workbench, and the camera is connected to the display screen through a transmission line. This preferred solution facilitates the operator to observe the wear condition of the tool, monitor the detection process in real time, and discover and handle problems in time.

[0014] In summary, the present invention mainly has the following beneficial effects: In this application, the tool to be detected for wear is installed in the tool placement sleeve, and then it is moved to the lower part of the U-shaped plate by the electric slide rail. At this time, the hydraulic cylinder controls the U-shaped plate to move down, so that the rack passes through the through groove and meshes with the driving gear, causing the driving gear to rotate along the tooth surface of the rack. The driving gear drives the transmission shaft rod to rotate, driving the lifting plate to move up and down. The movement of the lifting plate drives the wiping sponge to wipe the camera lens, thereby effectively removing the dust on the camera lens, preventing the formation of a dust covering layer, reducing light scattering and refraction, and ensuring the clarity of the image and the accuracy of the detection result; When the lifting plate rises to a certain position, the first conductive block contacts the second conductive block to form an electrical connection, automatically starting the ventilation fan to promote the air circulation in the U-shaped plate and the light shield, reducing the heat generated when the camera operates, and filtering the dust particles in the air through the dust filter screen to protect the camera; Meanwhile, the light shield can not only reduce the interference of strong light, but also prevent dust from directly adhering to the camera lens to a certain extent, further improving the clarity of the image. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Isometric front view structure diagram of the device of the present invention; Figure 2 Oblique isometric view structure diagram of the device of the present invention; Figure 3 Isometric front view of the moving block and the bottom plate of the present invention; Figure 4 Isometric front view structure diagram of the detection mechanism of the present invention; Figure 5 Oblique isometric view structure diagram of the detection mechanism of the present invention; Figure 6 Top view structure diagram of the detection mechanism of the present invention; Figure 7 Isometric front view structure diagram of the U-shaped plate section of the present invention.

[0016] BRIEF DESCRIPTION OF THE DRAWINGS: 1. Workbench; 101. Sliding through groove; 102. Display screen; 103. Support block; 1031. Moving groove; 1032. Hydraulic cylinder; 2. Electric slide rail; 3. Moving block; 301. Slide block; 302. Driving motor; 303. Mounting plate; 304. Tool placement sleeve; 4. Bottom plate; 401. Rack; 5. Detection mechanism; 6. U-shaped plate; 601. Through slot; 602. Cavity; 603. Camera; 604. Lifting through slot; 605. Ear plate; 7. Light shield; 8. Wiping assembly; 801. Fixed plate; 802. Wiping sponge; 803. L-shaped connecting rod; 804. Lifting plate; 8041. First conductive block; 805. Lead screw; 8051. Worm gear; 806. Worm; 807. Transmission shaft rod; 8071. Driving gear; 9. Ventilation fan; 901. Dust filter screen; 902. Top plate; 9021. Second conductive block. DETAILED DESCRIPTION OF THE INVENTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0018] The embodiments of the present invention will be described below according to the overall structure of the present invention. Embodiment

[0019] In this application, the display screen 102 also has control buttons, and the camera 603, the drive motor 302, the electric slide rail 2, the hydraulic cylinder 1032, and the first conductive block 8041 are all uniformly controlled by the control buttons.

[0020] Please refer to Figures 1-3 As shown, a tool wear detection device includes a workbench 1, two symmetrically fixed support blocks 103 above, a detection mechanism 5 located between the two support blocks 103, and a moving block 3 slidably arranged on the workbench 1. A sliding through groove 101 is formed on the workbench 1, the moving block 3 is arranged in the sliding through groove 101, the upper surface of the moving block 3 is fixed with a mounting plate 303 by screws, and one side of the upper surface of the mounting plate 303 is fixed with a bottom plate 4. A vertical rack 401 is fixed at the end of the upper surface of the bottom plate 4; Both inner walls of the sliding through groove 101 are installed with electric slide rails 2 by screws, both outer walls of the moving block 3 are installed with sliders 301 by screws, and both sliders 301 are slidably connected to the electric slide rails 2. The outer walls of the mounting plate 303 are in contact with the inner walls of the sliding through groove 101. A tool placement sleeve 304 is provided on the mounting plate 303. A clamping device, such as a spring collet or a hydraulic chuck, is provided inside the tool placement sleeve 304. The tool is inserted into the chuck, and then the tool is clamped by the clamping device. The lower surface of the moving block 3 is installed with a drive motor 302 by screws, and the output end of the drive motor 302 passes through the moving block 3 and is fixed with the tool placement sleeve 304 by screws. A display screen 102 is installed on the workbench 1, and the camera 603 is connected to the display screen 102 through a transmission line; The detection mechanism 5 includes a U-shaped plate 6, a light-shielding cover 7, and a wiping assembly 8. The light-shielding cover 7 is L-shaped and is adhesively connected to the outer wall of the U-shaped plate 6. The outer walls of both sides of the U-shaped plate 6 are slidably connected to the support blocks 103 up and down. A camera 603 is installed at the bottom of one inner wall of the U-shaped plate 6. The light-shielding cover 7 is used to reduce the direct irradiation of external strong light on the lens of the camera 603. The light-shielding cover 7 is made of a diffuser plate, and the diffuser plate material can evenly scatter light, further reducing the direct irradiation of light and protecting the lens of the camera 603. The wiping assembly 8 is used in cooperation with the rack 401. The wiping assembly 8 is used to wipe the lens of the camera 603 and protect it when not in use. Moving grooves 1031 are formed on one side of both support blocks 103 close to the U-shaped plate 6. Ear plates 605 are installed on the outer walls of both sides of the U-shaped plate 6 by screws, and the ends of both ear plates 605 are located in the moving grooves 1031 and are slidably connected thereto. Hydraulic cylinders 1032 are installed at the tops of both support blocks 103 by screws, and the output ends of both hydraulic cylinders 1032 are fixed to the upper surfaces of the ear plates 605 by screws.

[0021] When detecting the wear of the tool, the staff installs the tool to be detected in the tool placement sleeve 304, clamps the tool through the clamping device, and then starts the electric slide rail 2. The slider 301 drives the moving block 3 and the mounting plate 303 to move in the sliding through groove 101. Both the moving block 3 and the mounting plate 303 drive the tool placement sleeve 304 and the drive motor 302 to move, adjust the position of the tool, so that the tool is directly below the area formed by the U-shaped plate 6 and the light-shielding cover 7. Then start the drive motor 302, and its output end drives the tool placement sleeve 304 and the clamped tool to rotate. Among them, the bottom plate 4 and the rack 401 will move along with the mounting plate 303; Then the two hydraulic cylinders 1032 work, and their telescopic ends push the ear plate 605 to move downward along the moving groove 1031. The downward-moving ear plate 605 drives the U-shaped plate 6 to move downward. During the downward movement, the through groove 601 is sleeved on the rack 401. As the U-shaped plate 6 continues to move downward, the wiping assembly 8 will move upward under the action of the rack 401 to wipe the lens of the camera 603. When the wiping assembly 8 rises to a certain position, the ventilation fan 9 will also be started to work to promote air circulation and reduce the accumulation of heat during the subsequent operation of the camera 603. Finally, the camera 603 works to perform video display detection on the rotating tool to detect the wear degree, and the detected situation is displayed through the display screen 102, which is convenient for the operator to observe the wear situation of the tool; Therefore, the present application can effectively remove the dust on the lens of the camera 603, prevent the formation of a dust covering layer, reduce light scattering and refraction, ensure the clarity of the image and the accuracy of the detection result, and reduce the interference of strong light.

[0022] Please refer to Figures 4-7 As shown, the wiping assembly 8 includes a fixing plate 801. The fixing plate 801 is located in front of the lens of the camera 603. A wiping sponge 802 is bonded to the outer wall of the fixing plate 801. The wiping sponge 802 is in contact with the lens of the camera 603. On the other side outer wall of the fixing plate 801, an L-shaped connecting rod 803 is fixed. The L end of the L-shaped connecting rod 803 is connected to a lifting plate 804. A lifting through groove 604 is opened on one side of the groove wall of the U-shaped plate 6. The end of the lifting plate 804 is located in the lifting through groove 604 and is slidably connected to its inner wall. A cavity 602 is opened at the inner bottom of the groove wall of the U-shaped plate 6. A through groove 601 is penetrated through the groove wall of the U-shaped plate 6. The through groove 601 matches the rack 401. A horizontal transmission shaft rod 807 is rotatably installed inside the cavity 602. A driving gear 8071 is fixedly sleeved on the transmission shaft rod 807. A square groove is opened in the cavity 602 at the position of the through groove 601. One side tooth surface of the driving gear 8071 passes through the square groove and is located in the through groove 601. The tooth surface of the rack 401 is meshed with the tooth surface of the driving gear 8071; One end flange of the transmission shaft rod 807 is connected to a worm 806. The end face of the worm 806 is rotatably connected to the inner wall of the cavity 602. One side of the worm 806 meshes with a worm gear 8051. A lead screw 805 is fixedly penetrated through the center of the worm gear 8051. The top end of the lead screw 805 penetrates through the cavity 602 and extends into the lifting through groove 604. The top end of the lead screw 805 is rotatably connected to the top wall of the lifting through groove 604. The lifting plate 804 is sleeved on the lead screw 805 and is in threaded engagement with the contact part thereof.

[0023] During the downward movement of the U-shaped plate 6, the driving gear 8071 meshes with the tooth surface of the rack 401. The driving gear 8071 drives the transmission shaft rod 807 to rotate. The transmission shaft rod 807 drives the worm 806 to rotate. The worm 806 drives the lead screw 805 to rotate, so that the lifting plate 804 moves upward along the inner wall of the lifting through groove 604 following the rotation of the lead screw 805. The moving lifting plate 804 drives the fixing plate 801 to move through the L-shaped connecting rod 803. The fixing plate 801 drives the wiping sponge 802 to move, so that the lens of the camera 603 is exposed. After the detection is completed, when the U-shaped plate 6 moves upward, the wiping sponge 802 moves downward to reset, wipe the lens of the camera 603 and protect it to avoid dust attachment.

[0024] Please refer to Figure 5 and Figure 7 As shown, a ventilation fan 9 is embedded in the top of the wall body of the U-shaped plate 6 away from the camera 603. A dust filter screen 901 is installed by screws on the outer wall of the U-shaped plate 6 at the position of the ventilation fan 9. And a top plate 902 is fixed above the ventilation fan 9 on the inner wall top of the U-shaped plate 6. A second conductive block 9021 is installed on the lower surface of the top plate 902. The second conductive block 9021 is electrically connected to the ventilation fan 9. A first conductive block 8041 is installed on the upper surface of the lifting plate 804 arranged in the wiping assembly 8. The first conductive block 8041 matches the second conductive block 9021.

[0025] After the lifting plate 804 moves upward to a certain height, the first conductive block 8041 contacts the second conductive block 9021 to form an electrical connection. At this time, the ventilation fan 9 is started. The ventilation fan 9 sends external air into the inside of the U-shaped plate 6 and the light-shielding cover 7, so that the air circulates, reduces the heat accumulated due to the operation of the camera 603, and can filter dust particles in the air through the dust filter screen 901 to further protect the camera 603.

[0026] The working principle of the present invention is: When detecting the wear of the tool, the staff installs the tool to be detected in the tool placement sleeve 304, clamps the tool through the clamping device, and then starts the electric slide rail 2. The slider 301 drives the moving block 3 and the mounting plate 303 to move in the sliding through groove 101. Both the moving block 3 and the mounting plate 303 drive the tool placement sleeve 304 and the drive motor 302 to move, adjust the position of the tool, so that the tool is directly below the area formed by the U-shaped plate 6 and the light shield 7. Then start the drive motor 302, and its output end drives the tool placement sleeve 304 and the clamped tool to rotate. Among them, the bottom plate 4 and the rack 401 will move along with the mounting plate 303; Then the two hydraulic cylinders 1032 work, and their telescopic ends push the ear plate 605 to move downward along the moving groove 1031. The downward moving ear plate 605 drives the U-shaped plate 6 to move downward. During the downward movement, the through groove 601 is sleeved on the rack 401. As the U-shaped plate 6 continues to move downward, the driving gear 8071 meshes with the tooth surface of the rack 401. The driving gear 8071 will drive the transmission shaft rod 807 to rotate. The transmission shaft rod 807 drives the worm 806 to rotate. The worm 806 drives the lead screw 805 to rotate, so that the lifting plate 804 moves upward along the inner wall of the lifting through groove 604 following the rotation of the lead screw 805. The moving lifting plate 804 drives the fixing plate 801 to move through the L-shaped connecting rod 803. The fixing plate 801 drives the wiping sponge 802 to move, so that the lens of the camera 603 is exposed; After the lifting plate 804 moves up to a certain height, the first conductive block 8041 will contact the second conductive block 9021 to form an electrical connection. At this time, the ventilation fan 9 will be started. The ventilation fan 9 sends external air into the interior of the U-shaped plate 6 and the light shield 7 to make the air circulate. Finally, the camera 603 works to detect the wear degree by video display of the rotating tool, and displays the detected situation through the display screen 102, which is convenient for the operator to observe the wear condition of the tool; After the detection is completed, when the U-shaped plate 6 moves upward, the wiping sponge 802 will move downward and reset to wipe and protect the lens of the camera 603.

[0027] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and not limitations to the invention. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations without creative contributions to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A tool wear detection device, comprising a workbench (1), two symmetrically fixed support blocks (103) above, a detection mechanism (5) located between the two support blocks (103), and a moving block (3) slidably arranged on the workbench (1), characterized in that: The workbench (1) is provided with a sliding groove (101), the moving block (3) is arranged in the sliding groove (101), a mounting plate (303) is fixed to the upper surface of the moving block (3) by screws, and a bottom plate (4) is fixed to one side of the upper surface of the mounting plate (303), and a vertical rack (401) is fixed to the end of the upper surface of the bottom plate (4); The detection mechanism (5) comprises a U-shaped plate (6), a light shield (7) and a wiping assembly (8); the outer walls on both sides of the U-shaped plate (6) are connected to the support block (103) in an up-and-down sliding manner; a camera (603) is installed at the bottom of the inner wall of one side of the U-shaped plate (6); the light shield (7) is used to reduce the direct exposure of external strong light to the lens of the camera (603); the wiping assembly (8) is used in conjunction with the rack (401); the wiping assembly (8) is used to wipe the lens of the camera (603) and protect it when not in use.

2. A tool wear detection device according to claim 1, characterized in that: The wiping assembly (8) comprises a fixing plate (801), the fixing plate (801) being located in front of the lens of the camera (603); a wiping sponge (802) is bonded to the outer wall of the fixing plate (801), the wiping sponge (802) being in contact with the lens of the camera (603); an L-shaped connecting rod (803) is fixed to the other outer wall of the fixing plate (801); the L end of the L-shaped connecting rod (803) is connected to a lifting plate (804); a lifting groove (604) is provided on one side of the groove wall of the U-shaped plate (6); and an end of the lifting plate (804) is located in the lifting groove (604) and is slidably connected to the inner wall thereof.

3. A tool wear detection device according to claim 2, characterized in that: A cavity (602) is provided at the bottom of the groove wall of the U-shaped plate (6), a through groove (601) is provided through the groove wall of the U-shaped plate (6), the through groove (601) matches the rack (401), a horizontal transmission shaft (807) is rotatably mounted inside the cavity (602), a driving gear (8071) is fixedly sleeved on the transmission shaft (807), a connected square groove is provided in the cavity (602) at the through groove (601), a tooth surface of one side of the driving gear (8071) passes through the square groove and is located in the through groove (601), and a tooth surface of the rack (401) is meshed with a tooth surface of the driving gear (8071).

4. A tool wear detection device according to claim 3, characterized in that: A worm (806) is flange-connected to one end of the transmission shaft (807); an end face of the worm (806) is rotatably connected to the inner wall of the cavity (602); a worm wheel (8051) is meshed on one side of the worm (806); a screw (805) is fixedly passed through the center of the worm wheel (8051); the top end of the screw (805) passes through the cavity (602) and extends into the lifting groove (604); the top end of the screw (805) is rotatably connected to the top wall of the lifting groove (604); and the lifting plate (804) is sleeved on the screw (805) and is threadedly meshed with the contact portion thereof.

5. A tool wear detection device according to claim 1, characterized in that: A ventilation fan (9) is embedded in the top of the wall of the U-shaped plate (6) away from the camera (603); a dust filter (901) is screwedly mounted on the outer wall of the U-shaped plate (6) at the ventilation fan (9); and a top plate (902) is fixedly mounted on the top of the inner wall of the U-shaped plate (6) above the ventilation fan (9).

6. A tool wear detection device according to claim 5, characterized in that: A second conductive block (9021) is mounted on the lower surface of the top plate (902), the second conductive block (9021) being electrically connected to the ventilation fan (9), and a first conductive block (8041) is mounted on the upper surface of the lifting plate (804) provided in the wiping assembly (8), the first conductive block (8041) matching the second conductive block (9021).

7. A tool wear detection device according to claim 1, characterized in that: The light shield (7) is L-shaped, the light shield (7) is bonded to the outer wall of the U-shaped plate (6), and the light shield (7) is made of a diffusion plate.

8. A tool wear detection device according to claim 1, characterized in that: A movable groove (1031) is provided on one side of the two support blocks (103) close to the U-shaped plate (6); ear plates (605) are installed on the outer walls of both sides of the U-shaped plate (6) by means of screws; the ends of the two ear plates (605) are located in the movable groove (1031) and are slidably connected thereto; hydraulic cylinders (1032) are installed on the top ends of the two support blocks (103) by means of screws; and the output ends of the two hydraulic cylinders (1032) are fixed to the upper surfaces of the ear plates (605) by means of screws.

9. A tool wear detection device according to claim 1, characterized in that: The inner walls on both sides of the sliding groove (101) are both mounted with electric slide rails (2) by means of screws, the outer walls on both sides of the moving block (3) are both mounted with sliders (301) by means of screws, the two sliders (301) are both slidably connected to the electric slide rails (2), the outer walls of the mounting plate (303) are both in contact with the inner walls of the sliding groove (101), a tool placement sleeve (304) is provided on the mounting plate (303), a driving motor (302) is mounted on the lower surface of the moving block (3) by means of screws, and the output end of the driving motor (302) passes through the moving block (3) and is fixed to the tool placement sleeve (304) by means of screws.

10. A tool wear detection device according to claim 1, characterized in that: A display screen (102) is installed on the workbench (1), and the camera (603) is connected to the display screen (102) via a transmission line.

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