Grinding tool surface flatness detection device and detection method

Abstract

The invention discloses a grinding tool surface flatness detection device and detection method, and relates to the technical field of industrial automatic detection, the grinding tool surface flatness detection device comprises an external mechanism, a transmitting mechanism, a detection mechanism and a conveying mechanism, the detection mechanism is used for receiving a reflected or scattered laser beam, mapping the reflected or scattered laser beam to a receiving end of a laser recovery table, analyzing a laser signal and converting the laser signal into an electric signal; in the invention, the surface of the grinding tool is firstly cleaned by high-pressure gas to ensure the accuracy of the detection result, and when the subsequently generated laser beam irradiates the surface of the grinding tool and the emitted laser beam is mapped to the detection end of the laser recovery table, the detection result is accurately detected by measuring the intensity, frequency, phase and other parameters of the laser signal. According to the method, the micro fluctuation and the unevenness of the surface of the grinding tool can be reflected, powerful data support is provided for quality control and improvement of the grinding tool, and the intelligent detection process not only improves the automation degree of detection, but also ensures the accuracy and the reliability of a detection result.

Description

Technical Field

[0001] The invention relates to the technical field of industrial automation detection, and in particular to a device and method for detecting the surface flatness of a grinding tool. Background Art

[0002] The flatness of the abrasive surface is one of the important indicators to measure its quality. By testing the flatness, defects such as unevenness, scratches, and sand holes on the abrasive surface can be discovered in time, thereby ensuring that the quality of the abrasive meets the design requirements. This can not only avoid the production of defective and waste products, but also improve the overall quality level of the product.

[0003] However, there are still many problems in the process of mold detection: In the production process of molds, the current mainstream detection methods still rely on manual visual inspection and hand touch, but it is difficult to capture tiny surface defects due to the limitations of human visual accuracy and fatigue. Similarly, although hand touch can feel the roughness of the surface, it is also limited by personal experience and perception differences, lacking objectivity and accuracy. More importantly, these two methods cannot provide quantitative data support, are easily affected by subjective judgment, and have obvious limitations in detecting small unevenness. In addition, the manual inspection process is cumbersome, inefficient, and difficult to guarantee accuracy. It also has a large difference from the high-precision requirements of modern industrial production for the flatness of the mold surface; making it difficult to standardize and unify the inspection results, which has a significant impact on the application of subsequent equipment. Summary of the invention

[0004] The purpose of the present invention is to provide a device and method for detecting the surface flatness of a grinding tool, so as to solve the problem raised in the above background technology that the traditional manual detection process is cumbersome, inefficient, and difficult to ensure accuracy, making it difficult to standardize and unify the detection results.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device and method for detecting the surface flatness of a grinding tool, comprising an external mechanism, a launching mechanism, a detecting mechanism and a conveying mechanism. The launching mechanism, the detecting mechanism and the conveying mechanism are all fixedly installed inside the external mechanism, and the stability of the launching mechanism, the detecting mechanism and the conveying mechanism during operation is maintained; The variable-focus laser emitting device is installed inside the emitting mechanism, and acts to emit a laser beam. When the laser beam is irradiated to the surface of the mold, reflection, scattering and other phenomena will occur, and the emitting mechanism can adjust the emitting angle of the variable-focus laser emitting device; The detection mechanism is used to receive the reflected or scattered laser beam and map it to the receiving end of the laser recovery station. The laser analyzer is responsible for receiving the reflected or scattered laser signal and converting it into an electrical signal. After the electrical signal is amplified and filtered inside the laser analyzer, the relevant information of the tested abrasive surface can be obtained by measuring the intensity, frequency, phase and other parameters of the laser signal. The conveying mechanism is used to convey and inspect the mold.

[0006] Preferably, the detection mechanism includes a mounting frame, a gear A and a cylinder A; A group of movable grooves are opened on the outer wall of the mounting frame, and a movable frame is slidably embedded between the inner walls of a group of movable grooves through a slider, and a rotating rod is rotatably connected between the opposite sides of the movable frame, and an adjustment plate is fixedly sleeved on the outer wall of the rotating rod.

[0007] Preferably, the outer walls of the two gears A are meshedly connected with gears B, and one side of the outer walls of the two gears A are fixedly installed with the outer wall of the rotating rod, a built-in motor is fixedly installed on one side of the outer wall of one of the two gears B, and the outer wall of the built-in motor is fixedly inserted inside the movable frame, a laser analyzer is fixedly installed at the center of one side of the outer wall of the adjustment plate, the output end of the laser analyzer is fixedly connected to a laser recovery platform, and a group of laser rangefinders are fixedly installed on the outer wall of the laser recovery platform.

[0008] Preferably, a gas compressor is fixedly installed at the telescopic end of the cylinder A, and the top of the mounting frame is fixedly installed with the bottom of the cylinder A, the output end of the gas compressor is fixedly connected with an adjustable gas nozzle, the telescopic ends of the two cylinders B are fixedly connected with linkage plates, and one side of the outer wall of the two linkage plates is fixedly installed with the outer wall of the movable frame.

[0009] Preferably, the launching mechanism comprises a fixing frame, two side connecting frames and a fixing platform; A group of annular grooves are preset inside the fixed frame, a group of annular sliding columns are fixedly installed on the inner surface wall of the fixed frame, the outer walls of the two annular sliding columns are slidably embedded with sliding seats, a U-shaped fixing plate is fixedly installed between one side of the outer walls of the two sliding seats, two outer extension rods are fixedly inserted on the outer wall of the U-shaped fixing plate, and the outer walls of the two outer extension rods are movably embedded in the inside of a group of annular sliding columns, annular plates are fixedly installed on one side of the outer walls of the two outer extension rods, and a group of tooth grooves are opened on the inner surface wall of the annular plate.

[0010] Preferably, two external motors are fixedly mounted on the outer wall of the fixed frame; One side of the outer wall of the two side connecting frames is fixedly connected with an angle adjuster, and the rotating ends of the two external motors penetrate and are transmitted inside the angle adjuster, and the rotating ends of the two external motors are fixedly connected with spur gears, and the outer walls of the two spur gears are meshed and transmitted inside the tooth grooves; A movable rod is movably embedded inside the fixed platform, and the bottom of the fixed platform is fixedly connected to the bottom of the inner wall of the fixed frame, the top of the movable rod is fixedly connected to an adjustment seat, and the top of the adjustment seat is fixedly connected to the bottom of the U-shaped fixed plate.

[0011] Preferably, the conveying mechanism includes two feed frames, the tops of the two feed frames are slidably embedded with sliding seats, a rectangular plate is fixedly installed between the tops of the two sliding seats, two electric telescopic rods are fixedly installed on the tops of the rectangular plates, the telescopic ends of the two electric telescopic rods are fixedly connected to clamping plates, one side of the outer wall of one of the two feed frames is fixedly connected to an infrared detector, and one side of the outer wall of the two feed frames is fixedly installed with a trigger switch.

[0012] Preferably, the external mechanism includes a main body platform, a group of support beams are fixedly inserted at the bottom of the main body platform, the bottoms of the group of support beams are fixedly connected with anti-slip pads, and a transparent outer frame is fixedly installed at the top of the main body platform.

[0013] Preferably, the bottoms of the two feeding frames are fixedly mounted to the top of the main platform, the bottom of the fixing frame is fixedly mounted to the top of the main platform, and the top of the main platform is fixedly mounted to the bottom of the mounting frame.

[0014] The detection method of the grinding tool surface flatness detection device comprises the following steps: S1. When the equipment is in use, it is necessary to make preliminary adjustments to the device. First, the variable-focus laser emitting device is fixedly installed at the top center of the U-shaped fixed plate. Driven by two external motors, its output end can drive the spur gear of the terminal to rotate, and the two spur gears are meshed and connected inside the tooth groove during rotation. Under this transmission, the two slides are respectively slidably embedded in the outer wall of the annular slide column and the movable rod is movably embedded in the fixed platform. Under the dual cooperation, the annular plate can be kept moving upward in an annular shape, thereby adjusting the U-shaped fixed plate and the variable-focus laser emitting device fixed on the top thereof by an angle; S2. Inside the detection mechanism, driven by the two cylinders B, the top output end can pull the moving frame up and down. During the movement, the moving frame and the components fixed thereto can be adjusted to a height position. Then, when the built-in motor is powered on, its output end can drive the gear B to rotate. The gear B and the gear A are in a meshing transmission state. Because the rotating rod, the two gears B and the adjustment plate are in a fixed connection state with each other, under this transmission, the adjustment plate and the components fixed thereto can be adjusted to a tilt angle. S3, place the mold to be inspected on the top of the rectangular plate, and then use the telescopic action of the two electric telescopic rods to push the two clamping plates towards each other, so as to clamp and fix the mold itself, and then push the two sliding seats under the external force, and keep the two sliding seats slidably embedded in the outer wall of the feeding frame, so that the rectangular plate and the top fixed components move to one side. When the rectangular plate and the mold clamped on the top pass the middle position, they will be detected by the infrared detector, and the signal will be collected and analyzed and then transmitted to the inside of the controller, and then the gas compressor will be started to compress the gas, and it will be sprayed out through the adjustable gas nozzle to complete the effective cleaning of impurities on the surface of the mold, so as to prepare for subsequent inspections; S4, then the rectangular plate and the mold clamped on the top continue to move backwards, and when they reach the rightmost end, the rectangular plate contacts the two trigger switches, thereby starting the external variable-focus laser emitting device. When the laser beam generated by the variable-focus laser emitting device irradiates the surface of the mold, reflection occurs, and the emitted laser beam is mapped between the outer walls of the laser recovery table. These reflected or scattered laser signals will carry relevant information about the surface of the mold being measured, such as shape, size, position, etc. In particular, the reflection of the laser beam can reflect the slight fluctuations and unevenness of the surface of the mold. The central processing system is responsible for receiving the reflected or scattered laser signals and converting them into electrical signals. After amplification, filtering and other processing, the signals are sent to the signal processing unit for analysis. By measuring the intensity, frequency, phase and other parameters of the laser signal, relevant information about the surface of the mold being measured can be obtained, and the surface flatness detection and processing of the mold can be completed; S5. During the first round of laser beam detection of the mold, the laser beam emitted back is mapped between the detection ends of the laser recovery table. The laser rangefinders installed around the laser recovery table can adjust the beam distance from multiple aspects to keep the beam mapped at the most central position of the laser recovery table. When deviation occurs, appropriate fine-tuning can be performed using the above adjustment method.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the surface of the mold is first cleaned with high-pressure gas to ensure the accuracy of the test results. When the laser beam is subsequently irradiated onto the surface of the mold, the emitted laser beam is mapped to the detection end of the laser recovery station. By measuring the intensity, frequency, phase and other parameters of the laser signal, the slight fluctuations and unevenness of the mold surface can be reflected, providing strong data support for the quality control and improvement of the mold. This intelligent detection process not only improves the degree of automation of the detection, but also ensures the accuracy and reliability of the test results.

[0016] 2. In the present invention, with the cooperation of the emitting mechanism and the detecting mechanism, the variable-focus laser emitting device and the laser recovery platform can perform precise adjustments in height and tilt angle. This design not only meets the detection requirements of molds of different sizes, but also ensures that the laser beam can accurately irradiate the mold surface, thereby improving the accuracy and reliability of the detection, and improving the adaptability of molds of different sizes and sizes during the detection process.

[0017] 3. The present invention has the characteristics of high flexibility and adjustability, precise height and tilt angle adjustment, efficient mold clamping and conveying system, intelligent detection process, accurate data processing and analysis, and convenient fine-tuning and calibration functions, which improves detection efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the grinding tool surface flatness detection device of the present invention; Figure 2 It is a side view schematic diagram of the grinding tool surface flatness detection device of the present invention; Figure 3 It is a schematic diagram of the launching mechanism in the grinding tool surface flatness detection device of the present invention; Figure 4 It is a side perspective view of the launching mechanism in the grinding tool surface flatness detection device of the present invention; Figure 5 It is a three-dimensional diagram of the detection mechanism in the grinding tool surface flatness detection device of the present invention; Figure 6 It is a bottom-up stereoscopic diagram of the detection mechanism in the device for detecting the surface flatness of abrasive tool of the present invention; Figure 7 It is a three-dimensional diagram of some structures in the device for detecting the surface flatness of abrasive tool of the present invention; Figure 8 It is a schematic plan view of the laser recovery table in the grinding tool surface flatness detection device of the present invention; Fig. 9 It is a schematic diagram of laser detection in the grinding tool surface flatness detection device of the present invention.

[0019] In the figure: 1. External mechanism; 11. Main platform; 12. Support beam; 13. Anti-skid pad; 14. Transparent outer frame; 2. Launching mechanism; 21. Fixed frame; 211. Annular groove; 22. Annular slide column; 221. Sliding seat; 23. U-shaped fixing plate; 231. External extension rod; 24. Annular plate; 241. Tooth groove; 25. External motor; 26. Side connecting frame; 261. Angle adjuster; 271. Spur gear; 28. Variable-focus laser launching device; 29. ​​Fixed platform; 291. Movable rod; 292. Adjusting seat; 3. Detection mechanism; 31. Mounting frame; 311. Moving trough; 32. Moving frame; 321. Rotating rod; 322. Adjusting plate; 33. Gear A; 331. Gear B; 332. Built-in motor; 34. Laser analyzer; 341. Laser recovery table; 342. Laser rangefinder; 35. Cylinder A; 351. Gas compressor; 352. Adjustable gas nozzle; 36. Cylinder B; 361. Linkage plate; 4. Conveying mechanism; 41. Feeding frame; 42. Sliding seat; 421. Rectangular plate; 43. Electric telescopic rod; 431. Clamping plate; 44. Infrared detector; 45. Trigger switch. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1, refer to Figure 1-Figure 9 As shown: The present invention provides a device and method for detecting the surface flatness of a grinding tool, comprising an external mechanism 1, a launching mechanism 2, a detecting mechanism 3 and a conveying mechanism 4. The launching mechanism 2, the detecting mechanism 3 and the conveying mechanism 4 are all fixedly installed inside the external mechanism 1, and the stability of the launching mechanism 2, the detecting mechanism 3 and the conveying mechanism 4 during operation is maintained; The variable-focus laser emitting device 28 is installed inside the emitting mechanism 2, and acts to emit a laser beam. When the laser beam is irradiated to the surface of the mold, reflection, scattering and other phenomena will occur, and the emitting mechanism 2 can adjust the emitting angle of the variable-focus laser emitting device 28; The detection mechanism 3 is used to receive the reflected or scattered laser beam and map it to the receiving end of the laser recovery station 341. The laser analyzer 34 is responsible for receiving the reflected or scattered laser signal and converting it into an electrical signal. After the electrical signal is amplified and filtered inside the laser analyzer 34, the relevant information of the surface of the tested abrasive tool can be obtained by measuring the intensity, frequency, phase and other parameters of the laser signal. The conveying mechanism 4 functions to convey and detect the grinding tool.

[0022] In this embodiment, during the surface flatness detection of the mold, the mold is placed on the rectangular plate 421 and fixed by driving the clamping plate 431 through the electric telescopic rod 43. The rectangular plate 421 and the mold begin to slide along the feed frame 41 and move toward the detection area. When the rectangular plate 421 and the mold clamped by it slide to the rightmost end, they will contact the two trigger switches 45. This contact action will start the external variable-focus laser emitting device 28. The variable-focus laser emitting device 28 emits a laser beam to irradiate the surface of the mold. After the laser beam contacts the surface of the mold, reflection will occur. These reflected laser beams will be mapped to the outer wall of the laser recovery table 341. These reflected or scattered laser signals will transmit the detection signals to the laser recovery table 341. The optical analyzer 34 performs analysis inside (such as shape, size and position, etc.). The reflection of the laser beam can accurately reflect the slight fluctuations and unevenness of the surface of the mold. After receiving these reflected laser signals, the central processing system will immediately convert them from optical signals to electrical signals. Then, these electrical signals will undergo processing steps such as amplification and filtering to ensure the accuracy and stability of the signals. The processed signals will be sent to the signal processing unit for further analysis. In the signal processing unit, by measuring parameters such as the intensity, frequency and phase of the laser signal, relevant information of the surface of the mold being tested can be accurately obtained. This information is an important basis for evaluating the flatness of the mold surface, thereby completing the detection of the mold surface completion.

[0023] Embodiment 2, according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 as well as Figure 8 As shown, the launching mechanism 2 includes a fixing frame 21, two side connecting frames 26 and a fixing platform 29; A group of annular grooves 211 are preset inside the fixed frame 21, and a group of annular slide posts 22 are fixedly installed on the inner surface wall of the fixed frame 21. The outer surfaces of the two annular slide posts 22 are slidably embedded with slide seats 221. A U-shaped fixing plate 23 is fixedly installed between one side of the outer walls of the two slide seats 221. Two outer extension rods 231 are fixedly inserted on the outer wall of the U-shaped fixing plate 23, and the outer surfaces of the two outer extension rods 231 are movably embedded inside the group of annular slide posts 22. An annular plate 24 is fixedly installed on one side of the outer walls of the two outer extension rods 231, and a group of tooth grooves 241 are opened on the inner surface wall of the annular plate 24. Two external motors 25 are fixedly mounted on the outer wall of the fixed frame 21; An angle adjuster 261 is fixedly connected to one side of the outer wall of the two side connecting frames 26, and the rotating ends of the two external motors 25 penetrate and transmit inside the angle adjuster 261, and the rotating ends of the two external motors 25 are fixedly connected to spur gears 271, and the outer walls of the two spur gears 271 are meshed and transmitted inside the tooth groove 241, and a movable rod 291 is movably embedded inside the fixed platform 29, and the bottom of the fixed platform 29 is fixedly connected to the bottom of the inner wall of the fixed frame 21, and the top of the movable rod 291 is fixedly connected to an adjustment seat 292, and the top of the adjustment seat 292 is fixedly connected to the bottom of the U-shaped fixed plate 23; The detection mechanism 3 includes a mounting frame 31, a gear A33 and a cylinder A35; A group of moving grooves 311 are provided on the outer wall of the mounting frame 31, and a moving frame 32 is slidably embedded between the inner walls of the group of moving grooves 311 through a slider, and a rotating rod 321 is rotatably connected between the opposite sides of the moving frame 32, and an adjusting plate 322 is fixedly sleeved on the outer wall of the rotating rod 321, and the outer walls of the two gears A33 are meshed and connected with gears B331, and one side of the outer walls of the two gears A33 is fixedly installed with the outer wall of the rotating rod 321, and a built-in motor 332 is fixedly installed on one side of the outer wall of one of the two gears B331, and the outer wall of the built-in motor 332 is fixedly inserted in the interior of the moving frame 32, and a laser analyzer 34 is fixedly installed at the center of one side of the outer wall of the adjusting plate 322, and the output end of the laser analyzer 34 is fixedly connected to a laser recovery platform 341, and a group of laser rangefinders 342 are fixedly installed on the outer wall of the laser recovery platform 341; A gas compressor 351 is fixedly installed at the telescopic end of the cylinder A35, and the top of the mounting frame 31 is fixedly installed with the bottom of the cylinder A35. The output end of the gas compressor 351 is fixedly connected with an adjustable gas nozzle 352. The telescopic ends of the two cylinders B36 are fixedly connected with linkage plates 361, and one side of the outer wall of the two linkage plates 361 is fixedly installed with the outer wall of the moving frame 32. The conveying mechanism 4 includes two feed frames 41, and sliding seats 42 are slidably embedded in the tops of the two feed frames 41. A rectangular plate 421 is fixedly installed between the tops of the two sliding seats 42, and two electric telescopic rods 43 are fixedly installed on the tops of the rectangular plates 421. The telescopic ends of the two electric telescopic rods 43 are fixedly connected to clamping plates 431. An infrared detector 44 is fixedly connected to one side of the outer wall of one of the two feed frames 41, and a trigger switch 45 is fixedly installed on one side of the outer wall of the two feed frames 41.

[0024] In this embodiment, when the device is in use, first, the variable-focus laser emitting device 28 is fixedly installed at the top center position of the U-shaped fixed plate 23, and under the drive of the two external motors 25, its output end can drive the spur gear 271 of the terminal to rotate, and the two spur gears 271 are meshed and connected inside the tooth groove 241 during the rotation process. Under this transmission, the two slide seats 221 are respectively slidably embedded in the outer wall of the annular slide column 22 and the movable rod 291 is movably embedded in the fixed platform 29. Under the dual cooperation, the annular plate 24 can be kept moving upward in an annular shape, thereby adjusting the U-shaped fixed plate 23 and the variable-focus laser emitting device 28 fixed on the top thereof. An angle tilt adjustment, inside the detection mechanism 3, driven by the two cylinders B36, its top output end can pull the moving frame 32 up and down, and the moving frame 32 and the components fixed thereto can be adjusted during the movement to adjust the height position, and then the built-in motor 332 is powered on and driven, and its output end can drive the gear B331 to rotate, and the gear B331 and the gear A33 are in a meshing transmission state, and because the rotating rod 321, the two gears B331 and the adjustment plate 322 are in a fixed connection state with each other, finally under this transmission, the adjustment plate 322 and the components fixed thereto can be adjusted to adjust the tilt angle; And when the mold slides to the rightmost end, the switch is triggered, thereby starting the variable-focus laser emitting device 28 for detection. However, this does not mean that the detection device can only detect a specific part of the mold. The variable-focus laser emitting device 28 can adjust its own beam size and adjust its internal structure or optical elements so that the originally concentrated laser beam is diffused during emission. This diffusion treatment is usually used for adjustable treatment of the irradiation area. When the irradiation area is expanded to reduce the laser intensity, the light intensity of the laser beam can be increased by increasing the current, thereby meeting the size detection requirements of different molds.

[0025] Embodiment 3, according to Figure 1 , Figure 2 as well as Figure 7 As shown, the external mechanism 1 includes a main platform 11, a group of support beams 12 are fixedly inserted at the bottom of the main platform 11, and the bottoms of the group of support beams 12 are fixedly connected with anti-slip pads 13, and a transparent outer frame 14 is fixedly installed on the top of the main platform 11; The conveying mechanism 4 includes two feed frames 41, and sliding seats 42 are slidably embedded in the tops of the two feed frames 41. A rectangular plate 421 is fixedly installed between the tops of the two sliding seats 42, and two electric telescopic rods 43 are fixedly installed on the tops of the rectangular plates 421. The telescopic ends of the two electric telescopic rods 43 are fixedly connected to clamping plates 431. An infrared detector 44 is fixedly connected to one side of the outer wall of one of the two feed frames 41, and a trigger switch 45 is fixedly installed on one side of the outer wall of the two feed frames 41.

[0026] In this embodiment, during the first round of mold laser beam detection, if there is a deviation between the laser beam emitted and the detection end of the laser recovery table 341, the laser rangefinder 342 arranged around the laser recovery table 341 will monitor it and correct it through appropriate fine-tuning to ensure that the light beam can always be mapped at the most central position of the laser recovery table 341, thereby ensuring the accuracy and reliability of the detection results.

[0027] The working principle of the whole mechanism is as follows: after the equipment is started, it needs to be adjusted in the early stage to ensure its normal operation. First, the variable-focus laser emitting device 28 is installed at the top center position of the U-shaped fixed plate 23, and then the two external motors 25 are started. Their rotating ends will drive the spur gears 271 to rotate. These spur gears 271 are connected to the tooth grooves 241 through meshing to form a stable transmission system. At the same time, the two slide seats 221 are respectively slidably embedded in the outer wall of the annular slide column 22 for cooperation, and the movable rod 291 is movably embedded in the fixed platform 29. This double cooperation mechanism enables the annular plate 24 to move upward along the annular path, thereby adjusting the U-shaped fixed plate 23 and the variable-focus laser emitting device 28 installed on its top for angle tilting. Tilt adjustment, and inside the detection mechanism 3, the top output ends of the two cylinders B36 are responsible for pulling the mobile frame 32 to move up and down, and can adjust the height position of the mobile frame 32 and its fixed components. Subsequently, the built-in motor 332 is energized and drives the gear B331 to rotate. Since the gear B331 and the gear A33 are in a meshing transmission state, and the rotating rod 321, the two gears B331 and the adjustment plate 322 are fixedly connected to each other, the rotation of the built-in motor 332 can achieve the adjustment of the inclination angle of the adjustment plate 322 and its fixed components. When the equipment is running, the mold to be detected is placed on the top of the rectangular plate 421. The telescopic function of the two electric telescopic rods 43 can be used to push the two clamping plates 431 towards each other, thereby clamping and fixing. The mold is then pushed by an external force, and the two sliding seats 42 slide along the outer wall of the feeding frame 41, driving the rectangular plate 421 and its fixed components to move to one side. When the rectangular plate 421 and the mold clamped by it pass the middle position, the infrared detector 44 will detect it, and collect and analyze the signal and transmit it to the inside of the controller. At this time, the gas compressor 351 is started to compress the gas and spray it through the adjustable gas nozzle 352 to effectively clean the impurities on the surface of the mold. As the rectangular plate 421 and the mold clamped by it continue to move backward, when it reaches the rightmost end, the rectangular plate 421 contacts the two trigger switches 45, thereby starting the external variable-focus laser emitting device 28. When the laser beam is irradiated to the surface of the mold, reflection occurs and the The reflected laser beam is mapped to the outer wall of the laser recovery table 341. These reflected or scattered laser signals carry relevant information of the surface of the tested mold, such as shape, size, position, etc., and can especially reflect the slight fluctuations and unevenness of the surface of the mold. The central processing system is responsible for receiving these reflected or scattered laser signals and converting them into electrical signals. After amplification, filtering and other processing, these signals are sent to the signal processing unit for analysis. By measuring the intensity, frequency, phase and other parameters of the laser signal, relevant information of the surface of the tested mold can be obtained, thereby completing the detection and processing of the flatness of the mold surface. In the first round of mold laser beam detection, if there is a deviation between the emitted laser beam mapped to the detection end of the laser recovery table 341,The laser rangefinder 342 arranged around the laser recovery platform 341 can be used to detect the beam distance from many aspects. The laser rangefinder 342 emits continuous modulated light during use. When the light hits the edge of the laser beam aperture and is reflected back, the phase difference between the emitted light and the reflected light is compared. According to parameters such as the phase difference and the wavelength of the modulated light, the flight distance of the light is calculated, thereby obtaining the distance between the distance measuring device and the aperture edge. In the process, the device is fine-tuned to ensure that the beam can be accurately projected at the most central position of the laser recovery platform 341.

[0028] The detection method of the grinding tool surface flatness detection device comprises the following steps: S1. When the device is in use, it is necessary to make preliminary adjustments to the device. First, the variable-focus laser emitting device 28 is fixedly installed at the top center position of the U-shaped fixed plate 23. Under the drive of the two external motors 25, its output end can drive the spur gear 271 of the terminal to rotate, and the two spur gears 271 are meshed and connected inside the tooth groove 241 during the rotation process. Under this transmission, the two slide seats 221 are respectively slidably embedded in the outer wall of the annular slide column 22 and the movable rod 291 is movably embedded in the fixed platform 29. Under the dual cooperation, the annular plate 24 can be kept moving upward in an annular shape, so as to adjust the U-shaped fixed plate 23 and the variable-focus laser emitting device 28 fixed on the top thereof by an angle. S2. Inside the detection mechanism 3, driven by the two cylinders B36, the top output end can pull the moving frame 32 to move up and down. During the movement, the moving frame 32 and the components fixed thereto can be adjusted to adjust the height position. Then, when the built-in motor 332 is powered on, its output end can drive the gear B331 to rotate. The gear B331 and the gear A33 are in a meshing transmission state. Because the rotating rod 321, the two gears B331 and the adjustment plate 322 are in a fixed connection state with each other, finally, under this transmission, the adjustment plate 322 and the components fixed thereto can be adjusted to adjust the tilt angle. S3, the mold to be inspected is placed on the top of the rectangular plate 421, and then the two electric telescopic rods 43 are used to push the two clamping plates 431 towards each other under the telescopic effect of themselves, so as to clamp and fix the mold itself, and then under the push of external force, and with the cooperation of the two sliding seats 42 slidingly embedded in the outer wall of the feeding frame 41, the rectangular plate 421 and the components fixed on the top are moved to one side. When the rectangular plate 421 and the mold clamped on the top pass the middle position, they will be detected by the infrared detector 44, and the signal will be collected and analyzed and then transmitted to the inside of the controller, and then the gas compressor 351 will be started to compress the gas, and the gas will be sprayed out through the adjustable gas nozzle 352, so as to effectively clean the impurities on the surface of the mold and prepare for subsequent inspections; S4, then the rectangular plate 421 and the mold clamped on the top continue to move backwards, and when they reach the rightmost end, the rectangular plate 421 contacts the two trigger switches 45, thereby starting the external variable focus laser emitting device 28. When the laser beam generated by the variable focus laser emitting device 28 irradiates the mold surface, reflection occurs, and the emitted laser beam is mapped between the outer walls of the laser recovery table 341. These reflected or scattered laser signals will carry relevant information about the surface of the mold to be measured, such as shape, size, position, etc. In particular, the reflection of the laser beam can reflect the slight fluctuations and unevenness of the mold surface. The central processing system is responsible for receiving the reflected or scattered laser signals and converting them into electrical signals. After amplification, filtering and other processing, the signals are sent to the signal processing unit for analysis. By measuring the intensity, frequency, phase and other parameters of the laser signal, relevant information about the surface of the mold to be measured can be obtained, and the mold surface flatness detection processing can be completed; S5. During the first round of laser beam detection of the mold, the laser beam emitted back is mapped between the detection ends of the laser recovery platform 341. The laser rangefinder 342 arranged around the laser recovery platform 341 can adjust the beam distance from multiple aspects so as to keep the beam mapped at the most central position of the laser recovery platform 341. When deviation occurs, appropriate fine-tuning can be performed using the above adjustment method.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting the surface flatness of a grinding tool, comprising an external mechanism (1), a launching mechanism (2), a detecting mechanism (3) and a conveying mechanism (4), characterized in that: The launching mechanism (2), the detecting mechanism (3) and the conveying mechanism (4) are all fixedly mounted inside the external mechanism (1), and the stability of the launching mechanism (2), the detecting mechanism (3) and the conveying mechanism (4) is maintained during operation; The variable-focus laser emitting device (28) is installed inside the emitting mechanism (2) and functions to emit a laser beam. When the laser beam is irradiated onto the surface of the mold, reflection, scattering, etc. occur, and the emitting mechanism (2) is capable of adjusting the emitting angle of the variable-focus laser emitting device (28); The detection mechanism (3) is used to receive the reflected or scattered laser beam and map it to the receiving end of the laser recovery station (341). The laser analyzer (34) is responsible for receiving the reflected or scattered laser signal and converting it into an electrical signal. After the electrical signal is processed by amplification, filtering, etc. inside the laser analyzer (34), the relevant information of the surface of the tested abrasive tool can be obtained by measuring the intensity, frequency, phase, etc. of the laser signal. The conveying mechanism (4) is used to convey and inspect the mold.

2. The grinding tool surface flatness detection device according to claim 1, characterized in that: The detection mechanism (3) comprises a mounting frame (31), a gear A (33) and a cylinder A (35); The outer wall of the mounting frame (31) is provided with a group of movable grooves (311), a movable frame (32) is slidably embedded between the inner walls of a group of movable grooves (311) via a slider, a rotating rod (321) is rotatably connected between opposite sides of the movable frame (32), and an adjustment plate (322) is fixedly sleeved on the outer wall of each rotating rod (321).

3. The grinding tool surface flatness detection device according to claim 2, characterized in that: The outer walls of the two gears A (33) are meshedly connected with gears B (331), and one side of the outer walls of the two gears A (33) is fixedly mounted to the outer wall of the rotating rod (321). A built-in motor (332) is fixedly mounted on one side of the outer wall of one of the two gears B (331), and the outer wall of the built-in motor (332) is fixedly inserted into the interior of the moving frame (32). A laser analyzer (34) is fixedly mounted at the center of one side of the outer wall of the adjustment plate (322). The output end of the laser analyzer (34) is fixedly connected to a laser recovery platform (341), and a group of laser rangefinders (342) are fixedly mounted on the outer wall of the laser recovery platform (341).

4. The grinding tool surface flatness detection device according to claim 3, characterized in that: A gas compressor (351) is fixedly mounted on the telescopic end of the cylinder A (35), and the top of the mounting frame (31) is fixedly mounted on the bottom of the cylinder A (35). An output end of the gas compressor (351) is fixedly connected to an adjustable gas nozzle (352). The telescopic ends of the two cylinders B (36) are fixedly connected to linkage plates (361), and one side of the outer walls of the two linkage plates (361) is fixedly mounted on the outer wall of the movable frame (32).

5. The grinding tool surface flatness detection device according to claim 4, characterized in that: The launching mechanism (2) comprises a fixing frame (21), two side connecting frames (26) and a fixing platform (29); A group of annular grooves (211) are preset inside the fixing frame (21), a group of annular sliding columns (22) are fixedly installed on the inner surface wall of the fixing frame (21), and the outer surfaces of the two annular sliding columns (22) are slidably embedded with sliding seats (221), and a U-shaped fixing plate (23) is fixedly installed between one side of the outer walls of the two sliding seats (221), and two outer extension rods (231) are fixedly inserted into the outer surface wall of the U-shaped fixing plate (23), and the outer surfaces of the two outer extension rods (231) are movably embedded inside the group of annular sliding columns (22), and an annular plate (24) is fixedly installed on one side of the outer wall of the two outer extension rods (231), and the inner surface wall of the annular plate (24) is provided with a group of tooth grooves (241).

6. The grinding tool surface flatness detection device according to claim 5, characterized in that: Two external motors (25) are fixedly mounted on the outer wall of the fixed frame (21); One side of the outer wall of the two side connecting frames (26) is fixedly connected to an angle adjuster (261), and the rotating ends of the two external motors (25) penetrate and are driven inside the angle adjuster (261), and the rotating ends of the two external motors (25) are fixedly connected to spur gears (271), and the outer walls of the two spur gears (271) are meshed and driven inside the tooth grooves (241); A movable rod (291) is movably embedded inside the fixed platform (29), and the bottom of the fixed platform (29) is fixedly connected to the bottom of the inner wall of the fixed frame (21); the top of the movable rod (291) is fixedly connected to an adjustment seat (292), and the top of the adjustment seat (292) is fixedly connected to the bottom of the U-shaped fixed plate (23).

7. The grinding tool surface flatness detection device according to claim 6, characterized in that: The conveying mechanism (4) comprises two feeding frames (41), the tops of the two feeding frames (41) are both slidably embedded with sliding seats (42), a rectangular plate (421) is fixedly installed between the tops of the two sliding seats (42), two electric telescopic rods (43) are fixedly installed on the tops of the rectangular plates (421), the telescopic ends of the two electric telescopic rods (43) are both fixedly connected to clamping plates (431), one side of the outer wall of one of the two feeding frames (41) is fixedly connected to an infrared detector (44), and one side of the outer wall of the two feeding frames (41) is fixedly installed with a trigger switch (45).

8. The grinding tool surface flatness detection device according to claim 7, characterized in that: The external mechanism (1) comprises a main platform (11), a group of support beams (12) being fixedly inserted at the bottom of the main platform (11), a group of anti-slip pads (13) being fixedly connected to the bottom of each support beam (12), and a transparent outer frame (14) being fixedly installed at the top of the main platform (11).

9. The grinding tool surface flatness detection device according to claim 8, characterized in that: The bottoms of the two feeding frames (41) are fixedly mounted to the top of the main platform (11), the bottom of the fixing frame (21) is fixedly mounted to the top of the main platform (11), and the top of the main platform (11) is fixedly mounted to the bottom of the mounting frame (31).

10. A method for detecting the surface flatness of a grinding tool, characterized in that: The device for detecting the surface flatness of an abrasive tool according to any one of claims 1 to 9 is used, comprising the following steps: S1. When the device is in use, it is necessary to make preliminary adjustments to the device. First, the variable focus laser emitting device (28) is fixedly installed at the top center position of the U-shaped fixed plate (23). Under the drive of two external motors (25), its output end can drive the spur gear (271) of the terminal to rotate, and the two spur gears (271) are meshed and connected inside the tooth groove (241) during the rotation process. Under this transmission, the two slide seats (221) are respectively slidably embedded in the outer wall of the annular slide column (22) and the movable rod (291) is movably embedded in the fixed platform (29). Under the dual cooperation, the annular plate (24) can be kept moving upward in a circular shape, thereby adjusting the U-shaped fixed plate (23) and the variable focus laser emitting device (28) fixed on the top thereof by an angle. S2. Inside the detection mechanism (3), driven by the two cylinders B (36), the top output end can pull the moving frame (32) to move up and down. During the movement, the moving frame (32) and the components fixed thereto can be adjusted to a height position. Then, when the built-in motor (332) is energized, the output end can drive the gear B (331) to rotate. The gear B (331) and the gear A (33) are in a meshing transmission state. Because the rotating rod (321), the two gears B (331) and the adjustment plate (322) are in a fixed connection state with each other, under this transmission, the adjustment plate (322) and the components fixed thereto can be adjusted to a tilt angle. S3, placing the mold to be inspected on the top of the rectangular plate (421), and then using the telescopic action of the two electric telescopic rods (43) to push the two clamping plates (431) towards each other, so as to clamp and fix the mold itself, and then under the push of external force, and with the cooperation of the two sliding seats (42) slidingly embedded in the outer wall of the feeding frame (41), the rectangular plate (421) and the components fixed on the top are moved to one side. When the rectangular plate (421) and the mold clamped on the top pass the middle position, they will be detected by the infrared detector (44), and the signal will be collected and analyzed and then transmitted to the inside of the controller, and then the gas compressor (351) will be started to compress the gas, and the gas will be sprayed out through the adjustable gas nozzle (352), so as to effectively clean the impurities on the surface of the mold and prepare for subsequent inspection; S4, the rectangular plate (421) and the mold clamped on the top continue to move backwards, and when they reach the rightmost end, the rectangular plate (421) contacts the two trigger switches (45), thereby starting the external variable focus laser emitting device (28). When the laser beam generated by the variable focus laser emitting device (28) irradiates the surface of the mold, reflection occurs, and the emitted laser beam is mapped between the outer walls of the laser recovery table (341). These reflected or scattered laser signals carry relevant information about the surface of the mold to be measured, such as shape, size, position, etc. In particular, the reflection of the laser beam can reflect the slight fluctuations and unevenness of the surface of the mold. The central processing system is responsible for receiving the reflected or scattered laser signals and converting them into electrical signals. After amplification, filtering and other processing, the signals are sent to the signal processing unit for analysis. By measuring the intensity, frequency, phase and other parameters of the laser signal, relevant information about the surface of the mold to be measured can be obtained, and the surface flatness detection processing of the mold can be completed; S5. During the first round of laser beam detection of the mold, the laser beam emitted back is mapped to the detection end of the laser recovery platform (341). The laser rangefinder (342) arranged around the laser recovery platform (341) can adjust the beam distance from multiple aspects so as to keep the beam mapped at the most central position of the laser recovery platform (341). When deviation occurs, appropriate fine adjustment can be made in the above adjustment method.

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