An optical profile grinding machine

Abstract

This utility model relates to the technical field of precision parts processing equipment, specifically an optical profile grinding machine, including a chassis, a guide hopper, a fixed frame, a support frame, and a tension drive assembly. The chassis has a grinding chamber housing a CCD vision inspection system and a grinding mechanism, and a spray mechanism is also mounted on the chassis. The guide hopper is located within the grinding chamber and is connected to the input end of the spray mechanism. A lifting drive assembly for driving the guide hopper to slide is mounted on the chassis. The fixed frame is mounted on the guide hopper, and a slider slidably connected to it is mounted on the fixed frame. A linear drive assembly for driving the slider to slide is mounted on the fixed frame. The support frame is rotatably mounted on the slider, and a rotary drive assembly for driving the support frame to rotate is mounted on the slider. Two clamping plates are symmetrically arranged on the support frame. The tension drive assembly drives the connecting clamping plates. This utility model can quickly clamp and position workpieces, while the splashed debris and grinding fluid will not affect the normal operation of the CCD vision inspection system.

Description

Technical Field

[0001] This utility model relates to the field of precision parts processing equipment, specifically to an optical profile grinding machine. Background Technology

[0002] Optical profile grinding machines, as key equipment in the field of CNC grinding technology, are primarily used for precision machining of complex curves and curved surfaces. By combining optical projection with CNC technology, they can achieve micron-level machining accuracy and are widely used in industries with extremely high requirements for dimensional accuracy, such as mold making and precision parts manufacturing.

[0003] While existing optical profile grinding machines possess basic grinding and cooling functions—for example, a CNC optical profile grinding machine disclosed in Chinese Patent No. CN213034297U uses a water pump to drive water from a tank to cool the grinding wheel through a nozzle, extending its lifespan—and collects and discharges the cooling water through a support plate with a water collection tank, reducing dust pollution. However, these devices still have significant shortcomings in practical applications. These include severe waste of grinding fluid resources: grinding fluid has recycling value within a certain number of uses, but existing devices lack effective grinding fluid filtration structures. Used grinding fluid is directly discharged with the debris, failing to remove impurities for reuse. This not only increases the cost of grinding fluid consumption but also raises environmental pressure regarding wastewater treatment. Furthermore, existing devices often rely on manual adjustment or step-by-step drive structures for workpiece clamping, requiring operators to manually adjust the position of the clamping components and confirm the clamping status. This makes it impossible to achieve synchronous approach or departure of the clamping plates, resulting in complex and time-consuming operations. Moreover, human error can easily cause workpiece clamping deviation, affecting machining accuracy. Furthermore, neither traditional grinding machines nor the aforementioned patented devices have been designed with specific protective structures for vision inspection equipment (such as CCD lenses). During the grinding process, the mixture of splattered grinding fluid and debris easily adheres to the surface of the vision inspection equipment, obstructing the detection light path and causing the acquired workpiece image to become blurry and distorted. This prevents the CNC system from providing accurate position feedback, thereby affecting machining accuracy and product qualification rate. Utility Model Content

[0004] The purpose of this invention is to provide an optical profile grinding machine that can improve processing efficiency, resource utilization, and detection accuracy.

[0005] This utility model is achieved through the following technical solution: an optical profile grinding machine, characterized in that it comprises: The chassis has a grinding chamber, which contains a CCD vision inspection system and a grinding mechanism. The chassis also has a spray mechanism with a filtration function, which sprays grinding fluid onto the grinding points when in operation. A guide hopper is installed inside the grinding chamber and located below the grinding mechanism. The guide hopper is connected to the guide pipe of the spray mechanism through a corrugated pipe, thereby forming a grinding fluid return channel with the input end of the spray mechanism. A lifting drive assembly is provided on the upper part to drive the guide hopper to slide along the height direction of the grinding chamber. The lifting drive assembly is a first hydraulic cylinder. The body of the first hydraulic cylinder is installed inside the machine box, and the output end of the first hydraulic cylinder is connected to the bottom of the guide hopper. A fixed frame is provided on the guide hopper. The top of the fixed frame is provided with a smooth, water-proof top cover to prevent grinding fluid accumulation and protect the linear drive assembly on the fixed frame. A slider is provided on the fixed frame and a linear drive assembly is provided on the fixed frame to drive the slider to slide along the length direction of the fixed frame. The linear drive assembly is a third linear module. The body of the third linear module is provided on the fixed frame and the output end of the third linear module is connected to the slider. A support frame is rotatably mounted on a slider. A rotary drive assembly for driving the support frame to rotate is mounted on the slider. The rotary drive assembly is a motor. A rotating shaft is mounted at the bottom of the support frame and is rotatably connected to the slider. The motor body is mounted on the slider, and the output end of the motor is connected to the rotating shaft. Two clamping plates that are symmetrically mounted and slidably connected to the support frame are also mounted on the support frame. And a tensioning drive assembly, which is mounted on the support frame and drives the two clamping plates to move away from or towards each other synchronously.

[0006] The working principle of this technical solution is as follows: The chassis and processing space are constructed as follows: The grinding chamber on the chassis provides a closed processing environment, preventing grinding debris and grinding fluid from splashing and overflowing; the internally integrated CCD vision inspection system is used to collect the workpiece processing status in real time; the grinding mechanism is responsible for grinding curves / surfaces on the workpiece; and the spraying mechanism has dual functions of "cooling the grinding points" and "recycling the grinding fluid." The guide hopper, located below the grinding mechanism, collects the mixed liquid after grinding; it is connected to the guide pipe of the spraying mechanism through a corrugated pipe, forming a closed-loop channel of spraying, collection, return, filtration, and re-spraying, reducing grinding fluid waste; the lifting drive assembly can adjust the height of the guide hopper by telescopic extension to adapt to the collection needs of workpieces of different sizes. The water-proof top cover on the fixed frame has a smooth structure, which can not only prevent grinding fluid from accumulating and corroding the parts, but also protect the linear drive assembly on top; the third linear module drives the slider to slide along the fixed frame, realizing the position adjustment of the workpiece in the Y-axis direction; the rotary drive assembly drives the rotating shaft of the drive support frame to rotate, thereby adjusting the workpiece to adjust the processing angle to meet the needs of complex curve grinding; the tension drive assembly can drive the two clamping plates to move synchronously, realizing the rapid clamping / releasing of the workpiece.

[0007] To better realize this utility model, the chassis is further provided with a rotating door, a display screen and a viewing window, an iron block, an electromagnet adapted to the iron block, and a handle. The handle is equipped with a switch that controls the on / off state of the electromagnet circuit. The switch is electrically connected to the electromagnet. By pressing the switch, the electromagnet can be energized and engaged or de-energized and released, thereby locking or unlocking the chassis door.

[0008] To better realize this utility model, the CCD vision inspection system further includes a CCD lens and a controller. Two protective covers are symmetrically arranged in the grinding chamber about the grinding mechanism. The protective covers are transparent and have a smooth bevel at the top. The outer surface of the protective covers is coated with a hydrophobic coating to reduce the adhesion of grinding fluid to the surface of the protective covers and avoid obstructing the optical path of the CCD lens. Two opposing CCD lenses are respectively set in the protective covers on the corresponding sides. A control box is set in the chassis. The controller is a PLC controller, which is set in the control box and electrically connected to the CCD lens. The controller is also electrically connected to the display screen.

[0009] To better realize this utility model, the grinding mechanism further includes a slide, a first linear module, a grinding machine body, a grinding wheel, and a second linear module; a guide rail is provided inside the grinding chamber, the slide is disposed inside the grinding chamber and slidably connected to the guide rail, the body of the first linear module is connected to the inner wall of the grinding chamber, the output end of the first linear module is connected to the slide, the grinding machine body is slidably disposed on the slide, and the output end of the grinding machine body is detachably connected to the grinding wheel by bolts and nuts, the body of the second linear module is disposed on the slide, and the output end of the second linear module is connected to the grinding machine body; a first grating ruler is disposed on the slide along the length direction of the guide rail, and the first grating ruler is electrically connected to the controller; a second grating ruler is disposed on the slide along the length direction of the second linear module, and the second grating ruler is electrically connected to the controller.

[0010] To better realize this utility model, the spraying mechanism further includes a spray head, a water storage tank, a movable frame, an activated carbon bag, and a water pump. The spray head is mounted on the grinding machine body and faces the grinding side of the grinding wheel. The water storage tank is located inside the machine housing and stores grinding fluid. A guide pipe communicating with the interior of the water storage tank is provided on the water storage tank, and a corrugated pipe communicating with the guide pipe is provided on the guide pipe. The other end of the corrugated pipe is connected to the guide hopper and communicates with its discharge end. One end of the movable frame is inserted into the guide pipe and is detachably connected to the guide pipe. A guide hole communicating with the guide pipe is provided on the movable frame, and a support mesh plate is provided inside the guide hole. The support mesh plate is used to support the activated carbon bag, which is placed inside the guide hole and rests on the support mesh plate. The body of the water pump is located inside the machine housing, the input end of the water pump is communicating with the interior of the water storage tank, and the output end of the water pump is communicating with the spray head.

[0011] To better realize this utility model, two sliding grooves are symmetrically arranged on the support frame, and a limiting block is provided on each of the two clamping plates. The two limiting blocks are inserted into the sliding grooves on the corresponding sides and are fitted with them with a gap to realize the sliding connection between the clamping plates and the support frame.

[0012] To better realize this utility model, the tensioning drive assembly further includes a rack, a gear, and a second hydraulic cylinder. A limiting channel communicating with the slide groove is provided in the support frame. Both racks are located in the limiting channel and are respectively connected to the limiting blocks on the corresponding sides. The gear is rotatably arranged in the limiting channel and meshes with the racks on both sides. The body of the second hydraulic cylinder is arranged on the support frame, and the output end of the second hydraulic cylinder is connected to one of the limiting blocks. Pressure sensors are provided on the sides of the two clamping plates that are close to each other, and the pressure sensors are electrically connected to the controller.

[0013] Compared with the prior art, this utility model has the following advantages and beneficial effects: (1) In this utility model, two transparent protective covers are symmetrically arranged in the grinding chamber about the grinding mechanism, and the opposing CCD lenses are placed in the protective covers respectively, which can directly block the splashing grinding fluid and debris from contacting the lenses; at the same time, the top of the protective cover is designed as a smooth slope, and the outer surface is coated with a hydrophobic coating. Even if a small amount of grinding fluid splashes down, it will slide down along the slope and not adhere to the surface, completely avoiding the mixture from blocking the light path; the CCD lens is electrically connected to the PLC controller in the control box, which can clearly collect the workpiece processing image and transmit it to the controller in real time, providing accurate position and contour feedback for the CNC system, ensuring that the grinding mechanism processes according to the preset curve trajectory, effectively reducing the processing deviation caused by image blurring, and improving the product qualification rate; (2) This utility model achieves synchronous action of the clamping plates through the tension drive assembly. The gear in the support frame meshes with the racks on both sides. When the second hydraulic cylinder drives the limit block on one side, the limit block on the other side moves synchronously through gear transmission, which drives the two clamping plates to quickly approach and clamp the workpiece or move away from the workpiece to release it. There is no need for manual step-by-step adjustment, which shortens the clamping operation time. The third linear module on the fixed frame drives the slider to slide along the fixed frame to realize the workpiece Y-axis position adjustment. The motor on the slider drives the support frame to rotate, which can flexibly adjust the workpiece processing angle. The first hydraulic cylinder on the machine box drives the guide hopper to lift and lower, and synchronously adjusts the workpiece Z-axis height. Multi-dimensional adjustment does not require disassembling the workpiece, which is suitable for processing workpieces of different sizes and different curve types, and has a wider range of applications. The pressure sensor set on the inner side of the clamping plate is electrically connected to the controller, which can detect the clamping force in real time and feed it back to the system. When the pressure reaches the preset threshold, the second hydraulic cylinder will automatically stop, avoiding insufficient clamping force or excessive clamping of the workpiece caused by manual judgment, ensuring that the workpiece clamping state is consistent during batch processing, and significantly improving the processing stability. (3) This utility model constructs a grinding fluid circulation channel through a guide hopper, a corrugated pipe, a guide pipe and a water tank. The guide hopper is located below the grinding mechanism. After collecting the mixture of grinding fluid and debris, it flows into the guide pipe through the corrugated pipe. Then, it filters impurities through the activated carbon bag in the movable frame. The clean grinding fluid flows back to the water tank and is pumped back to the spray head for spraying. This improves the reuse rate of grinding fluid and reduces the cost of replenishing grinding fluid. The movable frame and the guide pipe are detachably connected. When the activated carbon bag is full of debris, the movable frame can be pulled out directly to replace the new activated carbon bag without disassembling the entire guide pipe. This shortens the maintenance operation time and ensures the continuous and efficient operation of the circulation system. (4) By optimizing the structure of the optical profile grinding machine, this utility model achieves simultaneous improvement in processing efficiency, resource utilization and detection accuracy. Its functions are improved, and it overcomes the shortcomings of the existing optical profile grinding machine by making targeted improvements. It is suitable for widespread application. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the grinding mechanism in this utility model; Figure 3 This is a schematic diagram of the connection structure of each component on the fixing frame in this utility model; Figure 4 This is a schematic diagram of the connection structure between the tensioning drive assembly and the clamping plate in this utility model; Figure 5 This is a schematic diagram of the filter assembly in this utility model.

[0015] The components are as follows: 1—Chassis, 101—Grinding chamber, 2—Chassis door, 3—Display screen, 4—View window, 5—Protective cover, 6—CCD lens, 7—Guide rail, 8—Slide carriage, 9—First linear module, 10—First grating ruler, 11—Grinding machine body, 12—Grinding wheel, 13—Second linear module, 14—Second grating ruler, 15—Spray head, 16—First hydraulic cylinder, 17—Guide hopper, 18—Corrugated pipe, 19—Fixed frame, 20—Slider, 21—Third linear module, 22—Support frame, 221—Slide groove, 23—Motor, 24—Clamping plate, 241—Limit block, 25—Tension drive assembly, 251—Rack, 252—Gear, 253—Second hydraulic cylinder, 26—Control box, 27—Water tank, 28—Guide pipe, 29—Moving frame, 30—Activated carbon bag, 31—Water pump. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly including one or more of the feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Example 1: The main structure of this embodiment is as follows: Figure 1 , Figure 3 As shown, it includes: The chassis 1 is equipped with a grinding chamber 101, which contains a CCD vision inspection system and a grinding mechanism. The chassis 1 is also equipped with a spraying mechanism with a filtration function. When the spraying mechanism is in operation, it sprays grinding fluid onto the grinding points. A guide hopper 17 is disposed inside the grinding chamber 101. The guide hopper 17 is located below the grinding mechanism and is connected to the guide pipe 28 of the spray mechanism through a bellows pipe 18, thereby forming a grinding fluid return channel with the input end of the spray mechanism. A lifting drive assembly is provided on the 1 to drive the guide hopper 17 to slide along the height direction of the grinding chamber 101. The lifting drive assembly is a first hydraulic cylinder 16. The body of the first hydraulic cylinder 16 is disposed inside the housing 1, and the output end of the first hydraulic cylinder 16 is connected to the bottom of the guide hopper 17. A fixed frame 19 is mounted on a guide hopper 17. The top of the fixed frame 19 is provided with a smooth, water-proof top cover to prevent grinding fluid accumulation and protect the linear drive assembly on the fixed frame. A slider 20 is mounted on the fixed frame 19 and slidably connected thereto. A linear drive assembly is mounted on the fixed frame 19 to drive the slider 20 to slide along the length direction of the fixed frame 19. The linear drive assembly is a third linear module 21. The body of the third linear module 21 is mounted on the fixed frame 19, and the output end of the third linear module 21 is connected to the slider 20. A support frame 22 is rotatably mounted on a slider 20. A rotary drive assembly for driving the support frame 22 to rotate is mounted on the slider 20. The rotary drive assembly is a motor 23. A rotating shaft is mounted at the bottom of the support frame 22 and is rotatably connected to the slider 20. The motor 23 is mounted on the slider 20 and its output end is connected to the rotating shaft. Two clamping plates 24 are symmetrically mounted on the support frame 22 and are slidably connected to it. And a tensioning drive assembly 25, which is mounted on the support frame 22 and drives the two clamping plates 24 to move away from or towards each other synchronously.

[0020] The specific implementation process is as follows: Press the switch on the handle of the box door 2 to de-energize the electromagnet and release it from the attraction with the iron block on the box door 2. Open the box door 2 and place the workpiece to be processed between the two clamping plates 24 of the support frame 22. Start the tensioning drive assembly 25 to drive the two clamping plates 24 to move closer synchronously until the workpiece is clamped. Start the third linear module 21, whose output end drives the slider 20 to slide along the fixed frame 19, adjusting the workpiece to the preset Y-axis position below the grinding mechanism. Start motor 23. The output end of motor 23 drives the shaft of support frame 22 to rotate, adjust the workpiece processing angle, and make the curve / surface to be ground face the grinding wheel 12. The first hydraulic cylinder 16 is activated, and its output end pushes the guide hopper 17 to slide along the height direction of the grinding chamber 101, simultaneously driving the fixed frame 19 and the workpiece to adjust the Z-axis height, ensuring that the distance between the workpiece and the grinding wheel 12 meets the processing requirements. The chamber door 2 is closed, and the handle switch is pressed again to energize the electromagnet, attracting the iron block to lock the chamber door 2; the grinding mechanism and CCD vision inspection system are activated, and the grinding mechanism performs curve grinding on the workpiece, while the CCD vision inspection system acquires the workpiece processing image in real time; the spray mechanism is activated to spray grinding fluid onto the grinding points, cooling the grinding wheel 12 and the workpiece, while suppressing dust. The mixture of grinding debris and grinding fluid slides down the guide hopper 17, flows into the guide pipe 28 through the bellows 18, and after the debris is filtered out by the filter assembly of the spray mechanism, the grinding fluid flows back to the water storage tank 27 for recycling.

[0021] Example 2: This embodiment further defines the structure of chassis 1 based on the above embodiments, such as... Figure 1 As shown, a door 2 is rotatably mounted on the chassis 1. A display screen 3 and a viewing window 4 are mounted on the door 2. An iron block is mounted on the door 2, and an electromagnet adapted to the iron block is mounted on the chassis 1. A handle is mounted on the door 2, and a switch controlling the electromagnet circuit is mounted on the handle. The switch is electrically connected to the electromagnet. Pressing the switch controls the electromagnet to be energized and engaged or de-energized and released, thus locking or unlocking the door 2. The cooperation between the electromagnet and the iron block enables quick locking and unlocking of the door 2. The display screen 3 and viewing window 4 optimize operational convenience. The iron block on the door 2 and the corresponding electromagnet on the chassis 1 create magnetism when the electromagnet is energized, attracting the iron block and locking the door 2. When the power is off, the magnetism disappears, unlocking the door 2 and allowing it to be opened easily. The handle of the cabinet door 2 integrates a switch to control the on / off state of the electromagnet circuit, allowing the operator to open and close the cabinet door with one hand; the display screen 3 is electrically connected to the controller and can display CCD visual inspection data and grinding parameters such as grinding wheel speed and feed speed in real time; the viewing window 4 is made of transparent material, which makes it easy for the operator to observe the internal status of the grinding chamber 101 during the processing without unlocking the cabinet door.

[0022] The specific implementation process is as follows: Unlocking and opening the box door: The operator holds the handle of box door 2, presses the switch on the handle, controls the electromagnet circuit to disconnect, the electromagnet loses its magnetism and separates from the iron block on box door 2; pull the handle outward to open box door 2 around the rotation axis of box door 2 and machine box 1, and load workpieces or inspect equipment.

[0023] After the workpiece is loaded, push the box door 2 to the closed state, press the handle switch again to control the electromagnet circuit to be turned on. The electromagnet generates magnetism to attract the iron block on the box door 2, thereby locking the box door 2 and preventing the box door 2 from being opened accidentally during processing.

[0024] During processing, the operator views the workpiece image and grinding parameters transmitted by the CCD vision inspection system through the display screen 3. If it is necessary to observe the real-time processing status, the operator can directly observe the fit between the grinding wheel 12 and the workpiece inside the grinding chamber 101 through the viewing window 4, without unlocking the chamber door. Other parts of this embodiment are the same as those in the above embodiments and will not be described again.

[0025] Example 3: This embodiment, based on the above embodiments, further defines the CCD vision inspection system, such as... Figure 1 As shown, the CCD vision inspection system includes a CCD lens 6 and a controller. Two protective covers 5 are symmetrically arranged within the grinding chamber 101 about the grinding mechanism. The protective covers 5 are transparent, with smooth bevels at their tops. A hydrophobic coating is applied to the outer surface of the protective covers 5 to reduce the adhesion of grinding fluid and prevent obstruction of the optical path of the CCD lens 6. Two opposing CCD lenses 6 are respectively housed within the protective covers 5 on their respective sides. A control box 26 is installed inside the chassis 1. The controller is a PLC controller, located within the control box 26 and electrically connected to the CCD lens 6. The controller is also electrically connected to the display screen 3. The two transparent protective covers 5 symmetrically arranged within the grinding chamber 101 about the grinding mechanism prevent splashed grinding fluid and debris from directly contacting the lens. The smooth bevels at the tops of the protective covers 5, along with the hydrophobic coating on their outer surfaces, reduce the adhesion of grinding fluid. Even if a small amount adheres, it will slide off along the bevel, preventing obstruction of the optical path of the CCD lens 6. The two CCD lenses 6 are arranged in a counter-beam configuration, which can acquire workpiece processing images from different angles. The controller is a PLC controller, which is set in the control box 26 and electrically connected to the CCD lenses 6. It can receive and process the image data acquired by the lenses in real time, and transmit the processed images and detection results, such as dimensional deviations, to the display screen 3 for the operator to view.

[0026] The specific implementation process is as follows: System startup and initialization: After turning on the main power of the grinding machine, the CCD vision inspection system automatically starts with the PLC controller. The two CCD lenses 6 begin to warm up, and the controller initializes image acquisition parameters such as resolution and exposure time. After the grinding mechanism starts, the two opposing CCD lenses 6 acquire images of the workpiece processing area from both sides of the grinding mechanism. Due to the barrier of the protective cover 5 and the effect of the hydrophobic coating, the grinding fluid will not adhere to the surface of the protective cover 5 and block the light path, allowing the lenses to clearly acquire the workpiece contour and grinding status. The CCD lenses 6 transmit the acquired image data to the PLC controller in the control box 26 in real time. The controller processes the image, such as contour extraction and dimension measurement, and transmits the processed image, dimension data, and deviation warnings to the display screen 3 on the door 2. The operator can monitor the workpiece processing accuracy in real time through the display screen. If the controller detects a blurred image, it will issue a warning on the display screen 3. At this time, processing needs to be paused, the door 2 unlocked, the outer surface of the protective cover 5 wiped with a cleaning cloth, and the vision inspection system restarted. The other parts of this embodiment are the same as those in the above embodiment and will not be repeated.

[0027] Example 4: This embodiment further defines the structure of the grinding mechanism based on the above embodiments, such as... Figure 2As shown, the grinding mechanism includes a slide 8, a first linear module 9, a grinding machine body 11, a grinding wheel 12, and a second linear module 13. A guide rail 7 is provided inside the grinding chamber 101. The slide 8 is located inside the grinding chamber 101 and slidably connected to the guide rail 7. The body of the first linear module 9 is connected to the inner wall of the grinding chamber 101, and its output end is connected to the slide 8. The grinding machine body 11 is slidably mounted on the slide 8, and its output end is detachably connected to the grinding wheel 12 via bolts and nuts. The body of the second linear module 13 is mounted on the slide 8, and its output end is connected to the grinding machine body 11. A first grating ruler 10 is provided on the slide 8 along the length of the guide rail 7, and is electrically connected to the controller. A second grating ruler 14 is provided on the slide 8 along the length of the second linear module 13, and is electrically connected to the controller. A guide rail 7 is installed inside the grinding chamber 101, and the carriage 8 is slidably connected to the guide rail 7. The body of the first linear module 9 is fixed to the inner wall of the grinding chamber 101, and its output end is connected to the carriage 8. Activating the first linear module 9 can drive the carriage 8 to slide laterally along the guide rail 7, thereby adjusting the position of the grinding wheel 12 in the X-axis direction. The grinding machine body 11 is slidably mounted on the carriage 8, and the body of the second linear module 13 is fixed to the carriage 8, with its output end connected to the grinding machine body 11. Activating the second linear module 13 can drive the grinding machine body 11 to slide longitudinally along the carriage 8, thereby adjusting the position of the grinding wheel 12 in the Z-axis direction. A first grating ruler 10 is installed on the slide 8 along the length of the guide rail 7 to detect the X-axis position of the slide 8 in real time; a second grating ruler 14 is installed on the slide 8 along the length of the second linear module 13 to detect the Z-axis position of the grinding machine body 11 in real time; both grating rulers are electrically connected to the PLC controller, feeding back the position data to the controller. The controller compares the preset position with the actual position and adjusts the actions of the first linear module 9 and the second linear module 13 to ensure the positioning accuracy of the grinding wheel 12. The output end of the grinding machine body 11 is connected to the grinding wheel 12 by bolts and nuts. Loosening the bolts allows the old grinding wheel to be removed, and after replacing the new grinding wheel, the bolts are tightened again, facilitating the replacement of different types of grinding wheels according to processing requirements.

[0028] The specific implementation process is as follows: Based on the workpiece material and grinding curve requirements, select a suitable grinding wheel 12; align the grinding wheel 12 with the output end of the grinding machine body 11, and secure it with bolts and nuts to ensure a firm installation. Input grinding parameters, including the grinding wheel 12 speed, the feed rate of the first linear module 9 and the second linear module 13, and the grinding depth, to the PLC controller via the display screen 3. Start the first linear module 9, driving the slide 8 to slide along the guide rail 7. The first grating ruler 10 feeds back the X-axis position data of the slide 8 to the controller in real time until the slide 8 moves to the preset transverse starting position. Start the second linear module 13, driving the grinding machine body 11 to slide along the slide 8. The second grating ruler 14 feeds back the Z-axis position data of the grinding machine body 11 to the controller in real time until the grinding wheel 12 moves to the preset longitudinal starting position.

[0029] The grinding machine body 11 is started, and the grinding wheel 12 rotates at high speed. The controller synchronously controls the first linear module 9 and the second linear module 13 according to a preset curve trajectory, driving the grinding wheel 12 to move along the workpiece's grinding curve to complete precision grinding. During grinding, the first grating ruler 10 and the second linear module 13 continuously provide position data, and the controller adjusts the module actions in real time to correct positional deviations. When the grinding wheel 12 wears to a certain extent, the grinding machine body 11 is paused, the bolts connecting the grinding wheel 12 and the grinding machine body 11 are loosened, the old grinding wheel is removed, a new grinding wheel is replaced, the bolts are retightened, and the position is recalibrated before continued use. Other parts of this embodiment are the same as those in the above embodiment and will not be repeated.

[0030] Example 5: This embodiment further defines the structure of the spraying mechanism based on the above embodiments, such as... Figure 1 , Figure 5As shown, the spraying mechanism includes a spray head 15, a water storage tank 27, a movable frame 29, an activated carbon bag 30, and a water pump 31. The spray head 15 is mounted on the grinding machine body 11, facing the grinding side of the grinding wheel 12. The water storage tank 27 is located inside the machine housing 1 and contains grinding fluid. A guide pipe 28 communicating with the interior of the water storage tank 27 is provided on the water storage tank 27, and a corrugated pipe 18 communicating with the guide pipe 28 is provided on the guide pipe 28. The other end of the corrugated pipe 18 is connected to the feed hopper 17 and... Its discharge end is connected, and one end of the movable frame 29 is inserted into the guide pipe 28 and detachably connected to the guide pipe 28. The movable frame 29 is provided with a guide hole that communicates with the guide pipe 28. A support mesh plate is provided in the guide hole. The support mesh plate is used to support the activated carbon bag 30. The activated carbon bag 30 is placed in the guide hole and falls on the support mesh plate. The body of the water pump 31 is set in the machine box 1. The input end of the water pump 31 is connected to the inside of the water storage tank 27. The output end of the water pump 31 is connected to the spray head 15. The input end of the water pump 31 is connected to the inside of the water storage tank 27, and the output end is connected to the spray head 15. After the water pump 31 is started, the grinding fluid in the water storage tank 27 is drawn to the spray head 15. The spray head 15 faces the grinding side of the grinding wheel 12 and can directly spray the grinding fluid onto the grinding point, which can cool the grinding wheel 12, reduce the workpiece processing temperature, and suppress the dust.

[0031] The feed hopper 17 collects the mixture of grinding debris and grinding fluid, which flows into the guide pipe 28 through the corrugated pipe 18. One end of the movable frame 29 is inserted into the guide pipe 28, and the support mesh plate in its guide hole carries the activated carbon pack 30. When the mixture flows through the activated carbon pack 30, the debris is intercepted, and the grinding fluid is filtered to remove impurities and odors before flowing back to the water storage tank 27 through the guide pipe 28, achieving recycling. The movable frame 29 and the guide pipe 28 are detachably connected. When the activated carbon pack 30 is full of debris or becomes ineffective, the movable frame 29 can be pulled out, a new activated carbon pack 30 can be replaced, and then it can be reinserted into the guide pipe 28, making the operation convenient.

[0032] The specific implementation process is as follows: Check the grinding fluid level in the water tank 27; if it is insufficient, replenish it to the preset level. Pull out the movable frame 29 and check if the activated carbon pack 30 is intact; if it is ineffective, replace it with a new activated carbon pack. Then insert the movable frame 29 into the guide pipe 28, ensuring that the guide hole is connected to the guide pipe 28. At the same time as starting the grinding mechanism, start the water pump 31. The water pump 31 draws the grinding fluid from the water tank 27 and delivers it through the pipeline to the spray head 15 on the grinding machine body 11. The spray head 15 continuously sprays the grinding fluid onto the grinding points of the grinding wheel 12 and the workpiece. The flow rate can be adjusted by the controller according to the processing requirements. The ground mixture slides down the inner wall of the feed hopper 17 to the bottom discharge end, and flows into the guide pipe 28 through the corrugated pipe 18. After entering the guide pipe 28, the mixture first flows through the guide hole of the movable frame 29. The activated carbon pack 30 on the support mesh plate intercepts debris and adsorbs impurities. The filtered clean grinding fluid flows back to the water storage tank 27 along the guide pipe 28. After processing a certain number of workpieces, such as 100 pieces, the grinding machine is paused and the water pump 31 is turned off. The movable frame 29 is pulled out, the activated carbon pack 30 in the guide hole is removed, and a new activated carbon pack is replaced. At the same time, the grinding fluid in the water storage tank 27 is checked. If it deteriorates, it is completely replaced to ensure the subsequent spraying effect. The other parts of this embodiment are the same as those in the above embodiment and will not be described again.

[0033] Example 6: This embodiment, based on the above embodiment, further specifies that two sliding grooves 221 are symmetrically arranged on the support frame 22, and a limiting block 241 is respectively provided on the two clamping plates 24. The two limiting blocks 241 are respectively inserted into the corresponding sliding grooves 221 and are clearance-fitted with them to realize the sliding connection between the clamping plates 24 and the support frame 22. Two sliding grooves 221 are symmetrically machined on the support frame 22, and a limiting block 241 is fixed to the bottom of each of the two clamping plates 24. The limiting blocks 241 are inserted into the corresponding sliding grooves 221, and the two are clearance-fitted, with a clearance amount of typically 0.02~0.05mm. This ensures that the limiting blocks 241 can slide smoothly along the sliding grooves 221, while also limiting the lateral displacement or wobbling of the clamping plates 24 during the sliding process. The symmetrical layout of the sliding grooves 221 ensures that the sliding trajectories of the two clamping plates 24 are parallel, avoiding uneven force on the workpiece when clamped due to trajectory deviation.

[0034] The specific implementation process is as follows: Before installing the clamping plate 24, check whether the two sliding grooves 221 on the support frame 22 are symmetrical and whether the inner walls are smooth without burrs or scratches; check whether the size of the limiting block 241 at the bottom of the clamping plate 24 matches the sliding groove 221 to ensure that the gap meets the design requirements. Align the limiting blocks 241 at the bottom of the two clamping plates 24 with the two sliding grooves 221 on the support frame 22 respectively, slowly insert them into the sliding grooves 221, push the clamping plate 24 to slide along the sliding grooves 221, and check whether the sliding is smooth and without jamming or offset.

[0035] When the tension drive assembly 25 is started, the two clamping plates 24 move synchronously closer or further away from each other along the slide groove 221 under the action of the driving force through the limit block 241. Due to the constraint of the slide groove 221, the clamping plates 24 always maintain parallel sliding and will not tilt or deviate, ensuring that the workpiece is clamped evenly and avoiding a decrease in processing accuracy due to clamping deviation.

[0036] Periodically disassemble the clamping plate 24, clean the grinding fluid residue or debris from the surface of the slide groove 221 and the limiting block 241, and apply a small amount of lubricating oil such as lithium-based grease if necessary to ensure that the sliding fit between the limiting block 241 and the slide groove 221 is always smooth. The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0037] Example 7: This embodiment further defines the structure of the tensioning drive assembly 25 based on the above embodiments, such as... Figure 4 As shown, the tensioning drive assembly 25 includes a rack 251, a gear 252, and a second hydraulic cylinder 253. A limiting channel communicating with a slide groove 221 is provided in the support frame 22. Both racks 251 are located in the limiting channel and are respectively connected to the limiting blocks 241 on the corresponding sides. The gear 252 is rotatably disposed in the limiting channel and meshes with the racks 251 on both sides. The body of the second hydraulic cylinder 253 is disposed on the support frame 22, and the output end of the second hydraulic cylinder 253 is connected to one of the limiting blocks 241. Pressure sensors are provided on the sides of the two clamping plates 24 that are close to each other, and the pressure sensors are electrically connected to the controller. The support frame 22 has a limiting channel that communicates with the slide groove 221. Two racks 251 are fixed on the corresponding limiting blocks 241 and are located in the limiting channel. The gear 252 is rotatably installed in the middle of the limiting channel through the bearing and meshes with the racks 251 on both sides. The output end of the second hydraulic cylinder 253 is connected to one of the limiting blocks 241. When the second hydraulic cylinder 253 extends or retracts, it will drive the limiting block 241 and rack 251 connected to it to move. Through the meshing transmission of the gear 252, it will drive the rack 251 and limiting block 241 on the other side to move in the opposite direction, so as to realize that the two clamping plates 24 move closer to each other to clamp or move away from each other to release. A pressure sensor is installed on each side of the two clamping plates 24 that are close to each other. The pressure sensors are electrically connected to the PLC controller. When the clamping plates 24 clamp the workpiece, the pressure sensors detect the pressure value between the clamping plates 24 and the workpiece in real time and transmit the data to the controller. The controller compares the actual pressure value with the preset clamping force threshold according to the workpiece material and size. When the threshold is reached, the controller controls the second hydraulic cylinder 253 to stop moving to avoid excessive pressure that could damage the workpiece or insufficient pressure that could cause the workpiece to loosen during processing.

[0038] The specific implementation process is as follows: a gear 252 is installed in the limiting channel of the support frame 22 to ensure that the gear 252 rotates flexibly; two racks 251 are fixed to the limiting blocks 241 of the two clamping plates 24 respectively, and then the racks 251 are inserted into the limiting channel so that the racks 251 and the gears 252 mesh precisely; the body of the second hydraulic cylinder 253 is fixed on the support frame 22, and the output end is connected to one of the limiting blocks 241; finally, a pressure sensor is installed on the inside of the clamping plate 24 and connected to the PLC controller. After placing the workpiece between the two clamping plates 24, input the preset clamping force threshold to the controller via the display screen 3, such as 500N for metal workpieces and 100N for plastic workpieces; start the second hydraulic cylinder 253, the output end of the second hydraulic cylinder 253 extends, pushing the limit block 241 and rack 251 connected to it to move along the slide groove 221 and the limit channel; the rack 251 drives the gear 252 to rotate, and the gear 252 drives the rack 251 and limit block 241 on the other side to move in the opposite direction, and the two clamping plates 24 synchronously approach the workpiece; when the clamping plates 24 contact the workpiece, the pressure sensor starts to detect the clamping force and transmits the data to the controller in real time; when the pressure value reaches the preset threshold, the controller sends a signal to stop the action of the second hydraulic cylinder 253, and the workpiece clamping is completed.

[0039] After processing, the controller retracts the output end of the second hydraulic cylinder 253, causing one side rack 251 to move in the opposite direction. Through gear 252, the other side rack 251 moves synchronously, moving the two clamping plates 24 away from the workpiece, allowing the operator to remove it. If the pressure sensor detects that the pressure value has not reached the threshold but the second hydraulic cylinder 253 has reached its end stroke, the controller will issue a "insufficient clamping" warning on the display screen 3, requiring a check of whether the meshing of the rack 251 and gear 252 is normal. If the pressure value far exceeds the threshold, the controller will immediately stop the second hydraulic cylinder 253 and reverse its movement to prevent workpiece damage. Other parts of this embodiment are the same as those in the above embodiment and will not be repeated.

[0040] It is understood that the working principle and process of the optical profile grinding machine structure according to one embodiment of the present invention, such as the CCD lens 6 and the water pump 31, are existing technologies and are well known to those skilled in the art, and will not be described in detail here.

[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An optical curve grinder characterized by comprising: include: The chassis (1) is provided with a grinding chamber (101), and a CCD vision inspection system and a grinding mechanism are provided in the grinding chamber (101). The chassis (1) is also provided with a spraying mechanism with a filtration function. The spraying mechanism sprays grinding fluid to the grinding point when it is in operation. The guide hopper (17) is located inside the grinding chamber (101). The guide hopper (17) is located below the grinding mechanism and is connected to the guide pipe (28) of the spraying mechanism through the bellows pipe (18), thereby forming a grinding fluid return channel with the input end of the spraying mechanism. The (1) is provided with a lifting drive assembly that drives the guide hopper (17) to slide along the height direction of the grinding chamber (101). The lifting drive assembly is a first hydraulic cylinder (16). The body of the first hydraulic cylinder (16) is located inside the machine box (1), and the output end of the first hydraulic cylinder (16) is connected to the bottom of the guide hopper (17). A fixed frame (19) is provided on the guide hopper (17). The top of the fixed frame (19) is provided with a smooth anti-water-accumulation top cover to prevent the accumulation of grinding fluid and protect the linear drive assembly on the fixed frame. A slider (20) is provided on the fixed frame (19) and slidably connected thereto. A linear drive assembly is provided on the fixed frame (19) to drive the slider (20) to slide along the length direction of the fixed frame (19). The linear drive assembly is a third linear module (21). The body of the third linear module (21) is provided on the fixed frame (19). The output end of the third linear module (21) is connected to the slider (20). A support frame (22) is rotatably mounted on a slider (20). A rotary drive assembly for driving the support frame (22) to rotate is mounted on the slider (20). The rotary drive assembly is a motor (23). A rotating shaft is mounted at the bottom of the support frame (22). The rotating shaft is rotatably connected to the slider (20). The body of the motor (23) is mounted on the slider (20). The output end of the motor (23) is connected to the rotating shaft. Two clamping plates (24) are symmetrically mounted on the support frame (22) and slidably connected to it. And a tension drive assembly (25), which is mounted on the support frame (22) and drives the two clamps (24) to move away from or towards each other synchronously.

2. An optical curve grinder according to claim 1, characterized in that The chassis (1) is provided with a rotating door (2), the door (2) is provided with a display screen (3) and a viewing window (4), the door (2) is provided with an iron block, the chassis (1) is provided with an electromagnet adapted to the iron block, and the door (2) is provided with a handle, the handle is provided with a switch to control the on and off of the electromagnet circuit, the switch is electrically connected to the electromagnet, and by pressing the switch, the electromagnet can be controlled to be energized and attracted or de-energized and released, thereby realizing the locking or unlocking of the door (2).

3. An optical curve grinding machine according to claim 1 or 2, characterized in that The CCD vision inspection system includes a CCD lens (6) and a controller. Two protective covers (5) are symmetrically arranged in the grinding chamber (101) about the grinding mechanism. The protective covers (5) are transparent and have a smooth bevel at the top. The outer surface of the protective cover (5) is coated with a hydrophobic coating to reduce the adhesion of grinding fluid on the surface of the protective cover (5) and avoid blocking the optical path of the CCD lens (6). The two opposing CCD lenses (6) are respectively arranged in the protective covers (5) on the corresponding sides. A control box (26) is arranged in the chassis (1). The controller is a PLC controller. The controller is arranged in the control box (26) and electrically connected to the CCD lens (6). The controller is also electrically connected to the display screen (3).

4. An optical curve grinder according to claim 3, wherein The grinding mechanism includes a slide (8), a first linear module (9), a grinding machine body (11), a grinding wheel (12), and a second linear module (13). A guide rail (7) is provided inside the grinding chamber (101). The slide (8) is located inside the grinding chamber (101) and is slidably connected to the guide rail (7). The body of the first linear module (9) is connected to the inner wall of the grinding chamber (101). The output end of the first linear module (9) is connected to the slide (8). The grinding machine body (11) is slidably mounted on the slide (8). The output end of the first linear module (1) is detachably connected to the grinding wheel (12) by bolts and nuts. The body of the second linear module (13) is set on the slide (8), and the output end of the second linear module (13) is connected to the grinding machine body (11). A first grating ruler (10) is set on the slide (8) along the length direction of the guide rail (7), and the first grating ruler (10) is electrically connected to the controller. A second grating ruler (14) is set on the slide (8) along the length direction of the second linear module (13), and the second grating ruler (14) is electrically connected to the controller.

5. An optical curve grinder according to claim 1 or 2, characterized in that The spraying mechanism includes a spray head (15), a water tank (27), a movable frame (29), an activated carbon bag (30), and a water pump (31). The spray head (15) is mounted on the grinding machine body (11) and faces the grinding side of the grinding wheel (12). The water tank (27) is located inside the machine housing (1) and contains grinding fluid. A guide pipe (28) communicating with the interior of the water tank (27) is provided on the water tank (27), and a corrugated pipe (18) communicating with the guide pipe (28) is provided on the guide pipe (28). The other end of the corrugated pipe (18) is connected to the feed hopper (17). Connected to and connected to its discharge end, one end of the movable frame (29) is inserted into the guide pipe (28) and detachably connected to the guide pipe (28). The movable frame (29) is provided with a guide hole connected to the guide pipe (28). A support mesh plate is provided in the guide hole. The support mesh plate is used to support the activated carbon bag (30). The activated carbon bag (30) is placed in the guide hole and falls on the support mesh plate. The body of the water pump (31) is set in the machine box (1). The input end of the water pump (31) is connected to the inside of the water storage tank (27). The output end of the water pump (31) is connected to the spray head (15).

6. The optical curve grinder according to claim 1 or 2, characterized in that Two sliding grooves (221) are symmetrically arranged on the support frame (22), and a limiting block (241) is provided on each of the two clamping plates (24). The two limiting blocks (241) are inserted into the sliding grooves (221) on the corresponding sides and are fitted with the gap to realize the sliding connection between the clamping plates (24) and the support frame (22).

7. An optical curve grinding machine according to claim 1 or 2, characterized in that The tensioning drive assembly (25) includes a rack (251), a gear (252), and a second hydraulic cylinder (253). The support frame (22) is provided with a limiting channel communicating with the slide groove (221). Both racks (251) are located in the limiting channel and are respectively connected to the limiting blocks (241) on the corresponding sides. The gear (252) is rotatably arranged in the limiting channel and meshes with both racks (251) on both sides. The body of the second hydraulic cylinder (253) is arranged on the support frame (22), and the output end of the second hydraulic cylinder (253) is connected to one of the limiting blocks (241). Pressure sensors are provided on the side of the two clamping plates (24) that are close to each other. The pressure sensors are electrically connected to the controller.

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