In-situ monitoring device and method for force and temperature in composite material grinding process

Abstract

The application discloses a kind of force temperature in-situ monitoring device and method in composite material grinding process, device includes force measuring unit, temperature measuring unit and control unit.Wherein, force measuring unit is fixedly arranged on the left side of upper portion of magnetic base;Temperature measuring unit is fixedly arranged on the right side of upper portion of magnetic base, including infrared camera for real-time measurement of temperature change of workpiece grinding surface and peripheral area;Control unit is fixedly connected with force measuring unit and temperature measuring unit by cable;During grinding process, force measuring unit keeps stationary below workpiece, temperature measuring unit makes infrared camera lens align workpiece under the regulation of control unit and ensures clear picture;Force measuring unit and temperature measuring unit are controlled by control unit, and force temperature data of grinding workpiece in machining process is measured in real time, improve the efficiency and accuracy of measurement, realize the quality control of grinding process, provide data support for the removal and removal mechanism of composite material in grinding process.

Description

Technical Field

[0001] This invention belongs to the field of online monitoring technology for grinding processes, and more specifically, relates to an in-situ force and temperature monitoring device and method for composite material grinding processes. Background Technology

[0002] Grinding is widely used in various industrial fields, such as automotive manufacturing, aerospace, mold making, and precision machinery. It can achieve sub-micron or even nanometer-level surface precision, making it suitable for workpieces with high requirements for dimensional accuracy and surface finish. It is applicable to various metallic materials, including steel, cast iron, aluminum alloys, and stainless steel, and can also be used to process some non-metallic materials, such as ceramics, glass, and graphite. However, during grinding, the grinding wheel exerts intense friction on the workpiece surface, and the grinding wheel itself has poor heat dissipation, leading to high grinding temperatures. This has a significant impact on the processing of temperature-sensitive materials, and for workpieces with high precision requirements, thermal deformation may cause a decrease in machining accuracy. Therefore, when studying the removal of composite materials during grinding and its removal mechanism, it is often necessary to monitor the force-temperature changes during the grinding process.

[0003] In the prior art, Chinese Patent CN104568633B discloses a speed- and temperature-controlled single-abrasive grinding experimental device. The device includes: an electric spindle; a tool holder mounted on the electric spindle; a workpiece mounted on the tool holder; a moving platform for moving the workpiece, with the electric spindle mounted on the moving platform; a heating assembly for heating the workpiece to a predetermined temperature; a worktable; a base post mounted on the worktable; a force gauge mounted on the base post; a cutting tool with a single abrasive grain mounted on the force gauge; and a camera assembly for tool setting, the camera assembly being opposite the cutting tool. The speed- and temperature-controlled single-abrasive grinding experimental device of Chinese Patent CN104568633B can effectively simulate the grinding process of interaction between a single abrasive grain on a grinding wheel and the workpiece surface. The experimental parameter settings provide experimental support for the study of the mechanism of high-speed, high-temperature grinding.

[0004] The force-temperature monitoring method described in Chinese Patent CN104568633B is an improvement on the conventional method of mounting an infrared camera on a tripod and installing a force gauge on a machining platform. It measures temperature using an infrared camera and grinding force using a force gauge. However, this patent still cannot solve some problems inherent in traditional measurement methods. For example, the installation process of the infrared measuring device is relatively complex, the stability of the infrared camera is low, and the focusing process is cumbersome and inaccurate. Furthermore, during grinding, the grinding wheel moves relative to the infrared camera, making it impossible to accurately record the temperature characteristics and evolution of the workpiece's machining area. Summary of the Invention

[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides an in-situ force and temperature monitoring device and method for composite material grinding. The device controls the temperature measurement unit through a control unit, and measures the force and temperature data of the workpiece during the grinding process in real time through the force measurement unit and the temperature measurement unit. This improves the efficiency and accuracy of the measurement, enables quality control of the grinding process, and provides data support for the study of composite material removal and its removal mechanism during grinding.

[0006] To achieve the above objectives, the present invention provides a force-temperature in-situ monitoring device during composite material grinding, comprising: a force measuring unit, a temperature measuring unit, and a control unit, wherein:

[0007] The force measuring unit includes a force gauge fixedly mounted on the upper left side of the magnetic base for measuring the force on the workpiece during grinding, and a first clamp fixedly mounted above the middle of the force gauge for holding the workpiece.

[0008] The temperature measuring unit includes a support and positioning platform fixed to the upper right side of the magnetic base via a magnetic support, a clamping device fixed above the support and positioning platform, and an infrared camera fixed to one side of the upper end of the clamping device.

[0009] The control unit includes a motion controller for real-time acquisition of workpiece force and temperature data and intelligent adjustment of the position, pitch, and focal length of the infrared camera; the control unit controls the temperature measuring unit, and the force measuring unit and temperature measuring unit measure the force and temperature data of the grinding workpiece in real time during the processing, providing data support for the study of the removal of composite materials and its removal mechanism during the grinding process.

[0010] Furthermore, the clamping device includes a first degree-of-freedom movement module for adjusting the overall height of the infrared camera, a second degree-of-freedom movement module for adjusting the overall front-to-back linear position of the infrared camera, a third degree-of-freedom movement module for adjusting the overall left-to-right linear position of the infrared camera, and a gimbal for controlling the pitch angle of the infrared camera.

[0011] Further, the first degree-of-freedom movement module, the second degree-of-freedom movement module, and the third degree-of-freedom movement module each include: a cover plate, a bearing support seat, a lead screw, a back plate, a sliding plate, a first motor, a connecting component, and a transmission component; wherein, the cover plate is fixedly disposed at the uppermost end of the first degree-of-freedom movement module; the top of the bearing support seat is fixedly connected to the lower left side of the cover plate by bolts, and a rolling bearing matching the lead screw is fixedly disposed in the middle of its lower side, and a matching bearing cover plate is fixedly disposed thereon; the lead screw is fixedly disposed between the two bearing support seats by rolling bearings; the upper end of the back plate is fixedly connected to the first degree-of-freedom movement module by bolts. The lower right side of the cover plate is fixedly connected, and a cross roller bearing is fixedly installed on the side facing the lead screw; the slide plate is sleeved on the outside of the lead screw through a lead screw nut fixed in the middle through hole, and its side facing the back plate is concave and adapted to the width of the back plate. In addition, a cross roller bearing adapted to the cross roller bearing of the back plate is fixedly installed on the concave surface; the upper left side of the connector is fixedly connected to the bearing support seat at the lower end of the lead screw and the lower end of the back plate by bolts respectively; the lower end of the first motor is fixedly installed on the upper right side of the connector by bolts; the transmission component is fixedly installed inside the connector.

[0012] Furthermore, the second degree-of-freedom movement module slide plate is fixedly connected to the first degree-of-freedom movement module connector by bolts; the third degree-of-freedom movement module slide plate is fixedly connected to the back plate of the second degree-of-freedom movement module by bolts.

[0013] Furthermore, the transmission component includes a first pulley a, a belt b, and a second pulley c; wherein, the first pulley a is fixedly sleeved on the first motor shaft passing through the connector, the second pulley c is fixedly sleeved on the lower end of the lead screw passing through the bearing support and the connector, and the first pulley a and the second pulley c are rotatably connected through the belt b.

[0014] Furthermore, the gimbal includes a clamping platform, an extension arm, a fixed shaft, an arc-shaped slider, an arc-shaped rack, an arc-shaped slide rail, a power component, and a housing support. The housing support is primarily a rectangular box-shaped structure. A concave mounting plate is fixed to the front of this box-shaped structure, and the housing support is fixed to the concave surface of the slide plate of the first degree of freedom movement module via side plates with through holes on both sides of the concave mounting plate. Simultaneously, fan-shaped side plates are fixed to both ends of the left side of the box-shaped structure, and a support seat adapted to the fixed shaft is fixed at the center of the fan-shaped side plate. The power component includes a second motor a fixed to the motor mounting base on the rear side of the housing support, an output shaft c fixed inside the housing support, and a gear b fixedly sleeved in the middle of the output shaft c. The arc-shaped rack has a smooth inner wall, and an outer side fixed with a gear b adapted to the gear b. The rack has multiple through holes fixedly provided on both sides of its upper end; the clamping platform is mainly composed of a rectangular plate and side plates fixed on both sides, with through holes fixedly provided on both sides for fixed connection with the infrared camera, and multiple through holes fixedly provided in the middle of the rectangular plate; the extension arm is mainly composed of a rectangular block, a ring and a T-shaped block fixedly connected in sequence, with the rectangular block fixedly provided below the clamping platform; the two ends of the fixed shaft are respectively fixed to the fan-shaped side plate support seat of the outer shell support, and the middle section is sleeved in the ring of the extension arm; the arc-shaped slider is fixed to one side of the T-shaped block of the extension arm by the left side plate and bolts, and is fixed to the same side of the upper end of the arc-shaped rack by the right side plate and bolts, and at the same time, an arc-shaped side plate corresponding to the inner and outer sliding grooves of the arc-shaped slide rail is also fixed on one side. The arc-shaped slide rail is fixed to the inside of the fan-shaped side plate of the outer shell support by bolts. The inner and outer walls are fixed with slide grooves, and baffles are fixed at both ends of the slide grooves to prevent the arc-shaped slide rail from falling off.

[0015] Further, the supporting positioning platform includes: a working platform, a positioning plate, a fixing plate, and a second bolt; wherein, the left side of the working platform is a rectangular flat plate with a fixed positioning mounting hole, and the right side is also fixedly provided with a rectangular side plate, the upper right side of which is also provided with a concave flat plate, the two protruding parts of which are fixedly provided with multiple strip-shaped and circular through holes; the right side of the positioning plate is fixedly provided with a mounting hole adapted to the second bolt, and the upper part of the positioning plate is fixedly provided with a mounting hole for positioning the positioning plate, and the position of the mounting hole corresponds to the position of the strip-shaped through hole of the working platform; the upper part of the fixing plate is fixedly provided with multiple mounting holes that match the circular through hole of the working platform, and the middle part is fixedly provided with a through hole adapted to the second bolt, the position of which corresponds to the position of the mounting hole of the positioning plate; the second bolt is fixedly connected to the fixing plate through the through hole of the positioning plate and the mounting hole of the fixing plate.

[0016] Furthermore, the force gauge includes: a data terminal, a fixed area, and a force measuring area; wherein, the fixed area is fixedly disposed on the left and right sides of the force gauge; the force measuring area is fixedly disposed in the middle of the two fixed areas and is provided with a force sensor; the data terminal is fixedly disposed in the middle of the left side of the fixed area and is fixedly connected to the force measuring area sensor.

[0017] Further, the first clamp includes: a base plate, a side plate, a support rail, a movable block, a fixed block, and a first bolt; wherein, the base plate is fixed above the force measuring area through fixed through holes and bolts; the side plate is generally an L-shaped block, with its short side contacting the base plate and fixed above the base plate through fixed through holes and bolts on its long side; the support rail has grooves on both sides that are adapted to the long sides of the side plate and is fixed above the center of the base plate through the side plate; the left and right sides of the support rail are strip-shaped blocks, and a rectangular block is fixed at the upper rear end. The front upper end is fixed with the same rectangular block and the middle of the block has a through hole that matches the first bolt. The front block and the two strip blocks form a whole with a convex groove at the bottom. The movable block is a convex block with its protruding end matching the upper end of the convex groove of the support rail. The fixed block is fixed to the lower part of the protruding end of the movable block by bolts, and its width is the same as the width of the lower end of the groove of the support rail. The first bolt passes through the through hole fixed in the front rectangular block of the support rail and is fixedly connected to the movable block through the mounting hole on the surface of the movable block.

[0018] Furthermore, the infrared camera can be adjusted in a counterclockwise direction in the vertical plane at an angle ranging from -80° to 10°.

[0019] Another aspect of the present invention provides a monitoring method using the aforementioned force-temperature in-situ monitoring device during composite material grinding, characterized by comprising the following steps:

[0020] S1: Ensure the grinding machine, force measuring unit, and temperature measuring unit are in normal working condition; check the power supply, sensors, and connecting cables of the equipment for proper functioning.

[0021] S2: Fix the force gauge to the upper left side of the magnetic base, and fix the first clamp above the force gauge. Then, use the first clamp to clamp the workpiece.

[0022] S3: Fix the support positioning platform on the upper right side of the magnetic base, fix the clamping device in a suitable position on the support positioning platform according to the workpiece grinding requirements, and finely adjust the position and pitch angle of the infrared camera through the motion controller;

[0023] S4: Turn on the power of the grinding machine and perform grinding of the workpiece. Monitor the image transmitted by the infrared camera through the display terminal, and adjust the position and pitch angle of the infrared camera according to the changes in the grinding surface of the workpiece to obtain a good field of view. At the same time, observe whether the infrared camera interferes with the grinding machine.

[0024] S5: After the workpiece grinding operation is completed, turn off the power of the grinding machine and clean the table. Export the force and temperature data of the workpiece from the motion controller for subsequent statistical analysis.

[0025] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects:

[0026] 1. The monitoring device of the present invention controls the temperature measuring unit through the control unit, and measures the force and temperature data of the workpiece being ground in real time during the processing through the force measuring unit and the temperature measuring unit, thereby improving the efficiency and accuracy of measurement, realizing quality control of the grinding process, and revealing potential correlations and regularities by performing statistical and trend analysis on the force and temperature data during the grinding process, providing data support for studying the removal of composite materials and its removal mechanism during the grinding process.

[0027] 2. The monitoring device of the present invention, after initially locating the infrared camera by supporting the positioning platform, uses multiple degrees of freedom movement modules to fine-tune the position of the infrared camera, ensuring the accuracy and stability of the infrared camera focusing process.

[0028] 3. The monitoring device of the present invention obtains accurate measurement results by using a first clamp with a fixed force gauge, monitors force changes in the grinding process in real time, and provides support for quality control, process optimization and fault diagnosis. It helps to improve the stability, efficiency and quality of the grinding process, and provides a basis for data analysis and mining.

[0029] 4. The monitoring device of the present invention controls the position and pitch angle of the infrared camera by means of a motor, which reduces the complexity of focusing operation, improves installation efficiency, and realizes full-process intelligence.

[0030] 5. The monitoring device of the present invention controls the pitch angle of the infrared camera pitch device through a gimbal mainly composed of components such as gears, racks, sliders, slide rails and fixed shafts. This not only reduces the weight of the infrared camera pitch device, but also has the advantages of strong load-bearing capacity and high control precision, ensuring the accuracy and stability of the infrared camera focusing process.

[0031] 6. The monitoring device of the present invention controls the grinding process of the workpiece in real time through a mobile controller, observes and fine-tunes the infrared camera image in real time, effectively improves the efficiency of the infrared camera focusing process, and ensures the accuracy and reliability of the measurement data. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the assembly structure of the monitoring device according to an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the force measuring unit according to an embodiment of the present invention;

[0034] Figure 3 This is a cross-sectional schematic diagram of the first clamp according to an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the supporting platform structure according to an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the front structure of the clamping device according to an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the rear structure of the clamping device according to an embodiment of the present invention;

[0038] Figure 7 This is an exploded view of the gimbal according to an embodiment of the present invention;

[0039] Figure 8 This is a schematic diagram of the structure of the mobile controller according to an embodiment of the present invention;

[0040] Figure 9 This is a schematic flowchart of the in-situ force and temperature monitoring method according to an embodiment of the present invention.

[0041] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-force gauge, 11-data terminal, 12-fixed area, 13-force measuring area, 2-first clamp, 21-base plate, 22-side plate, 23-support rail, 24-moving block, 25-fixed block, 26-first bolt, 3-infrared camera, 4-support positioning platform, 41-working platform, 42-positioning plate, 43-fixed plate, 44-second bolt, 5-clamping device, 51-first degree of freedom moving module, 52-second degree of freedom moving module, 53-third degree of freedom moving module, 501-cover plate, 502-bearing support seat, 503-lead screw, 504-back plate, 505-slide plate, 506- 507-Connector, 508-Transmission component, 508a-First pulley, 508b-Belt, 508c-Second pulley, 54-Gimbal, 541-Clamping platform, 542-Extendable arm, 543-Fixed shaft, 544-Arc-shaped slider, 545-Arc-shaped rack, 546-Arc-shaped slide rail, 547-Power component, 547a-Second motor, 547b-Gear, 547c-Output shaft, 548-Outer housing support, 6-Motion controller, 61-Display end, 62-Input end, 63-Printer, 8-Grinding machine, 81-Grinding wheel component, 82-Grinding machine frame, 83-Baffle, 84-Magnetic base, 85-Magnetic support, 86-Grinding machine controller, 9-Workpiece. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0043] like Figures 1 to 8As shown, one embodiment of the present invention provides a force-temperature in-situ monitoring device during composite material grinding, including a force measuring unit, a temperature measuring unit, and a control unit. The force measuring unit is fixedly mounted on the upper left side of a magnetic base 84, used to clamp the workpiece 9 and measure the force on the workpiece 9 during grinding. The temperature measuring unit is fixedly mounted on the upper right side of the magnetic base 84, including an infrared camera 3 for real-time measurement of temperature changes on the grinding surface and surrounding area of ​​the workpiece 9. The control unit is fixedly connected to the force measuring unit and the temperature measuring unit via cables, used to monitor the overall grinding situation. During grinding, the force measuring unit remains fixed below the workpiece 9, and the temperature measuring unit, under the control of the control unit, ensures that the lens of the infrared camera 3 is aligned with the workpiece 9 and that the image is clear. By controlling the temperature measuring unit through the control unit, and by using the force measuring unit and the temperature measuring unit to measure the force and temperature data of the workpiece 9 during the grinding process in real time, the efficiency and accuracy of the measurement are improved, achieving quality control of the grinding process. Furthermore, by performing statistical and trend analysis on the force and temperature data during the grinding process, potential correlations and regularities can be revealed, providing data support for studying the removal of composite materials and its removal mechanism during grinding.

[0044] like Figures 1 to 3 As shown, the force measuring unit includes a force gauge 1 and a first clamp 2. The force gauge 1 is a rectangular block and is fixed to the upper left side of the magnetic base 84 with bolts. It is used to measure the grinding force of the workpiece 9 in the x, y, and z axes during grinding. It also includes a data terminal 11, a fixing area 12, and a force measuring area 13. The fixing area 12 is a rectangular block and is fixed to the left and right sides of the force gauge 1. It has multiple through holes in the vertical direction for fixing the force gauge 1. The force measuring area 13 is fixed in the middle of the two fixing areas 12 and has a force sensor for providing the working surface and measuring the grinding force on the workpiece 9. The data terminal 11 is fixed in the middle left side of the fixing area 12 and is fixedly connected to the sensor in the force measuring area 13. It is fixedly connected to the control unit via a cable for transmitting grinding force data.

[0045] In addition, the first clamp 2 is fixedly mounted above the force measuring area 13 of the force gauge 1 to stably clamp the workpiece 9. It also includes: a base plate 21, a side plate 22, a support rail 23, a movable block 24, a fixed block 25, and a first bolt 26. The base plate 21 is a rectangular block with chamfered edges. The width between its left and right sides is less than the corresponding width of the force measuring area 13, and it is fixed above the force measuring area 13 via through holes and bolts. The side plate 22 is an L-shaped block, with its short side contacting the base plate 21 and fixed above the base plate 21 via through holes and bolts along its long side. The rail 23 has grooves on both sides that fit the long side of the side plate 22 and is fixed to the upper center of the base plate 21 through the side plate 22; the left and right sides of the support rail 23 are strip blocks, the upper rear side is fixed with a rectangular block, and the upper front side is fixed with the same rectangular block with a through hole in the middle that fits the first bolt 26; at the same time, the two rectangular blocks at the front and rear ends of the support rail 23 are fixed with chamfers at the contact positions with the strip blocks on the left and right sides to facilitate the assembly of parts; furthermore, the front block and the two strip blocks form a convex groove at the bottom; the movable block 24 is a convex square. The block has a protruding end that matches the upper end of the convex groove of the support rail 23, and the width and thickness of the upper end can be changed according to the size of the workpiece 9 to be clamped. It is used to assist in clamping the workpiece 9. The fixed block 25 is fixed to the lower part of the protruding end of the movable block 24 by bolts. Its width is the same as the width of the lower end of the groove of the support rail 23. It is used to restrict the movable block 24 in the middle groove of the support rail 23. The first bolt 26 passes through the through hole fixed in the rectangular block on the front side of the support rail 23 and is fixedly connected to the movable block 24 through the mounting hole on the surface of the movable block 24. It is used to clamp the workpiece 9 with the movable block 24. In the measurement preparation In the first stage, after the fixed block 25 fixes the movable block 24 in the middle of the support rail 23, the support rail 23 is fixed above the base plate 21 by the side plates 22 on both sides, thus completing the assembly of the first clamp 2. Then, the first clamp 2 is firmly fixed above the force measuring area 13 of the force gauge 1 by bolts. By using the first clamp 2 in conjunction with the fixed force gauge 1, accurate measurement results can be obtained, the force changes during the grinding process can be monitored in real time, and support can be provided for quality control, process optimization and fault diagnosis. This helps to improve the stability, efficiency and quality of the grinding process, and at the same time provides a basis for data analysis and mining.

[0046] like Figure 1 , Figures 4 to 7As shown, the temperature measurement unit includes an infrared camera 3, a support and positioning platform 4, and a clamping device 5. The infrared camera 3 is a rectangular column and is fixed using the clamping device 5. One end of its lens is aligned with the grinding surface of the workpiece 9 and used to monitor the temperature information of the area surrounding the grinding machine in real time. The support and positioning platform 4 is fixed to the upper right side of the magnetic base via a magnetic support and is used to adjust the position of the clamping device 5. It includes a working platform 41, a positioning plate 42, a fixing plate 43, and a second bolt 44. The left side of the working platform 41 is a rectangular flat plate with a fixed positioning mounting hole. A rectangular side plate is also fixed to its right side. A concave flat plate is also provided on the upper right side of this side plate. Multiple strip-shaped and circular through holes are fixed to the protruding parts at both ends of this concave flat plate. Furthermore, inclined beams for strengthening the plate are fixed to the front and rear sides of the working platform 41. The positioning plate 42 is a rectangular block with a mounting hole on its right side that matches the second bolt 44. Its upper part has a mounting hole for positioning the positioning plate 42, and this mounting hole corresponds to the position of the strip-shaped through hole on the work platform 41. The fixing plate 43 is a rectangular block with multiple mounting holes on its upper end that match the circular through hole on the work platform 41, used for fixing the fixing plate 43 by the positioning machine. Its middle part has a through hole that matches the second bolt 44, and this through hole corresponds to the position of the mounting hole on the positioning plate 42. The second bolt 44 is fixedly connected to the fixing plate 43 through the through hole of the positioning plate 42 and the mounting hole of the fixing plate 43, driving the positioning plate 42 to clamp the magnetic support 85, thereby firmly fixing the supporting positioning platform 4 to the right side of the magnetic base 84.

[0047] In addition, the clamping device 5 is fixedly mounted on the upper part of the working platform 41 through the positioning and mounting holes fixedly provided on the working platform 41. It includes: a first degree of freedom movement module 51, a second degree of freedom movement module 52, a third degree of freedom movement module 53, and a gimbal 54. Among them, the first degree of freedom movement module 51 is used to adjust the overall height of the infrared camera 3, and includes: a cover plate 501, a bearing support seat 502, a lead screw 503, a back plate 504, a sliding plate 505, a first motor 506, a connector 507, and a transmission component 508; the cover plate 501 is a stepped block, which is fixedly mounted at the top of the first degree of freedom movement module 51; the top of the bearing support seat 502 is fixedly connected to the lower left side of the cover plate 501 by bolts, and a rolling bearing matching the lead screw 503 is fixedly mounted in the middle of its lower side to support the rotational movement of the lead screw 503, and a matching bearing cover plate is fixedly mounted thereon; the lead screw 503 is... Rolling bearings are fixedly mounted between two bearing support seats 502. The back plate 504 is a rectangular block, its upper end fixedly connected to the lower right side of the cover plate 501 by bolts, and a crossed roller bearing is fixedly mounted on its side facing the lead screw 503. The sliding plate 505 is a rectangular block with three concave sides, fitted onto the outside of the lead screw 503 by a lead screw nut fixed in its central through hole. Its side facing the back plate 504 is concave and matches the width of the back plate 504. Furthermore, a crossed roller bearing compatible with the crossed roller bearing on the back plate 504 is fixedly mounted on this concave surface, thus allowing it to slide linearly up and down on the lead screw 503 without rotation. The connecting piece 507 is a hollow stepped block with an opening on the front. Its upper left side is fixedly connected to the bearing support seat 502 at the lower end of the lead screw 503 and the lower end of the back plate 504 by bolts. The first motor 506 is a rectangular block, its lower end fixedly mounted to the upper right side of the connecting piece 507 by bolts. The transmission component 508 is fixedly disposed inside the connector 507 and is used to assist the first motor 506 in driving the lead screw 503 to rotate. It includes a first pulley 508a, a belt 508b, and a second pulley 508c. The first pulley 508a is fixedly sleeved on the shaft of the first motor 506 that passes through the connector 507, and the second pulley 508c is fixedly sleeved on the lower end of the lead screw 503 that passes through the bearing support 502 and the connector 507. The first pulley 508a and the second pulley 508c are rotatably connected by the belt 508b.

[0048] Furthermore, the second degree of freedom movement module 52 is used to adjust the overall front-back linear position of the infrared camera 3. It includes a cover plate 501, a bearing support seat 502, a lead screw 503, a back plate 504, a slide plate 505, a first motor 506, a connector 507, and a transmission component 508. The connection method of each component is the same as that of the first degree of freedom movement module 51. The whole module can be obtained by rotating the first degree of freedom movement module 51 counterclockwise by 90 degrees in the vertical direction. At the same time, the slide plate 505 of the second degree of freedom movement module 52 is fixedly connected to the connector 507 of the first degree of freedom movement module 51 by bolts. In addition, the third degree of freedom movement module 53 is used to adjust the overall left and right linear position of the infrared camera 3. It includes a cover plate 501, a bearing support seat 502, a lead screw 503, a back plate 504, a slide plate 505, a first motor 506, a connector 507, and a transmission component 508. The connection method of each component is the same as that of the first degree of freedom movement module 51. The whole module can be obtained by rotating the second degree of freedom movement module 52 counterclockwise by 90 degrees in the horizontal direction. At the same time, the slide plate 505 of the third degree of freedom movement module 53 is fixedly connected to the back plate 504 of the second degree of freedom movement module 52 by bolts. In addition, the lower end of the back plate 504 of the third degree of freedom movement module 53 is fixedly connected to the working platform 41 by bolts.

[0049] Furthermore, the gimbal 54 is fixedly mounted on the concave rear surface of the slide plate 505 of the first degree of freedom movement module 51, and is used to control the pitch angle of the infrared camera 3. It includes a clamping platform 541, an extension arm 542, a fixed shaft 543, an arc-shaped slider 544, an arc-shaped rack 545, an arc-shaped slide rail 546, a power component 547, and a housing support 548. The housing support 548 has a rectangular box-shaped structure, with a closed rectangular panel on the top, bottom, front and rear sides, and right side, and an opening on the front. A concave mounting plate is fixedly mounted on the front side of the box-shaped structure, and the housing support 548 is fixedly mounted on the concave rear surface of the slide plate 505 of the first degree of freedom movement module 51 through side plates with through holes on both sides of the concave mounting plate. At the same time, a motor mounting seat adapted to the second motor 547a is fixedly mounted on the rear side of the box-shaped structure, and fan-shaped side plates are fixedly mounted at both ends on the left side. A support seat adapted to the fixed shaft 543 is fixedly mounted at the center of the fan-shaped side plate. The power unit 547 includes a second motor 547a, a gear 547b, and an output shaft 547c. The second motor 547a is cylindrical and is fixedly mounted on a motor mounting base at the rear of the housing support 548. One end of the motor passes through the rear of the housing support 548 and is fixedly connected to the output shaft 547c, which is fixedly mounted inside the housing support 548. The gear 547b is fixedly sleeved in the middle of the output shaft 547c and is in rolling connection with the outer side of the arc-shaped rack 545, driving the arc-shaped rack 545 to rotate. The arc-shaped rack 545 is an incomplete C-shaped ring structure with a smooth inner wall. A rack adapted to the gear 547b is fixedly mounted on its outer side, and multiple through holes are fixedly provided on both sides of its upper end. The clamping platform 541 is mainly composed of a rectangular plate and side plates fixedly mounted on both sides. The side plates have through holes fixedly provided for fixed connection with the infrared camera 3, and multiple through holes are fixedly provided in the middle of the rectangular plate. The extension arm 542 is mainly composed of rectangular blocks, a ring, and a T-shaped block connected in sequence. The rectangular block is fixed to the bottom of the clamping platform 541 by bolts and through holes corresponding to the through holes in the middle of the rectangular plate of the clamping platform 541. The fixed shaft 543 is a rotating shaft that is thin at both ends and thick in the middle. Its two ends are respectively fixed to the fan-shaped side plate support seat of the outer shell support 548, and the middle section is fitted into the ring of the extension arm 542, thereby realizing the rotation of the extension arm 542 carrying the support platform around the fixed shaft 543. The arc-shaped slider 544 is fixed to one side of the T-shaped block of the extension arm 542 by the left side plate and bolts, and is fixed to the same side of the upper end of the arc-shaped rack 545 by the right side plate and bolts. At the same time, an arc-shaped side plate corresponding to the inner and outer grooves of the arc-shaped slide rail 546 is also fixed on one side. The arc-shaped slide rail 546 is fixed to the inside of the fan-shaped side plate of the outer shell support 548 by bolts. The whole is an incomplete C-shaped ring structure. The inner and outer walls are fixed with slide grooves, and baffles are fixed at both ends of the slide grooves to prevent the arc-shaped slider 544 from falling off.During the grinding process, after the infrared camera 3 is initially positioned by the support positioning platform 4, the position of the infrared camera 3 is finely adjusted using multiple degree-of-freedom movement modules, ensuring the accuracy and stability of the focusing process of the infrared camera 3. Furthermore, the position and pitch angle of the infrared camera 3 are controlled by a motor, reducing the complexity of the focusing operation, improving installation efficiency, and realizing full-process intelligence. In addition, the pitch angle of the infrared camera 3's pitch device is controlled by a gimbal 54, which is mainly composed of components such as gears, racks, sliders, slide rails, and fixed shafts 543. This not only reduces the weight of the infrared camera 3's pitch device but also has the advantages of strong load-bearing capacity and high control precision, ensuring the accuracy and stability of the infrared camera 3's focusing process.

[0050] Preferably, the length of the lead screw 503 in the first degree-of-freedom movement module 51 is greater than the length of the lead screw 503 in the second degree-of-freedom movement module 52 and the third degree-of-freedom movement module 53.

[0051] Preferably, all motors are brushless motors and are connected to the control unit via wired and / or wireless means, thereby realizing intelligent adjustment of the position and pitch of the infrared camera 3.

[0052] Preferably, the gimbal 54 enables the infrared camera 3 to adjust its pitch angle from -80° to 10° in a counterclockwise direction in the vertical plane.

[0053] like Figure 1 and Figure 8 As shown, the control unit is used to acquire real-time data on the force and temperature of the workpiece 9 and to intelligently adjust the position, pitch, and lens focal length of the infrared camera 3. It includes a motion controller 6. The motion controller 6 is connected to the first motor and the second motor via wired and / or wireless means, and includes a display terminal 61, an input terminal 62, and a printer 63. The display terminal 61 is fixedly mounted on the surface of the motion controller 6 and displays the force and temperature data of the workpiece 9, as well as the motor control interface. The input terminal 62 is fixedly mounted on the surface of the motion controller 6 and located to one side of the display terminal 61, and is used to control the motor to achieve intelligent adjustment of the position, pitch, and lens focal length of the infrared camera 3. The printer 63 is located to one side of the motion controller 6 and is used to print the force and temperature data of the workpiece 9 to visualize the measurement results. By controlling the grinding process of the workpiece 9 in real-time through the motion controller 6, and observing and fine-tuning the image from the infrared camera 3 in real-time, the efficiency of the focusing process of the infrared camera 3 is effectively improved, ensuring the accuracy and reliability of the measurement data.

[0054] Preferably, the mobile controller 6 is fixedly provided with a magnetic attraction device on its back side and can be attracted to the area around the grinding machine controller 86, thereby enabling convenient operation by the staff and improving work efficiency and safety.

[0055] like Figure 9As shown, another embodiment of the present invention provides a method for in-situ monitoring of force and temperature during composite material grinding, which is implemented using the aforementioned monitoring device and includes the following steps:

[0056] S1: Ensure the grinding machine, force measuring unit, and temperature measuring unit are in normal working condition; check the power supply, sensors, and connecting cables of the equipment for proper functioning.

[0057] S2: Fix the force gauge 1 on the upper left side of the magnetic base 84, and fix the first clamp 2 on the upper side of the force gauge 1. Then, use the first clamp 2 to clamp the workpiece 9.

[0058] S3: Fix the support positioning platform 4 on the upper right side of the magnetic base 84, and fix the clamping device 5 in a suitable position on the support positioning platform 4 according to the grinding requirements of the workpiece 9. Fine-tune the position and pitch angle of the infrared camera 3 through the motion controller 6.

[0059] S4: Turn on the power of the grinding machine and perform grinding of workpiece 9. Monitor the image transmitted by infrared camera 3 through display terminal 61, and adjust the position and pitch angle of infrared camera according to the changes of grinding surface of workpiece 9 to obtain a good field of view. At the same time, observe whether the infrared camera interferes with the grinding machine.

[0060] S5: After the grinding operation of workpiece 9 is completed, turn off the power of the grinding machine and clean the table. Export the force and temperature data of workpiece 9 from the motion controller 6 for subsequent statistical analysis.

[0061] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0062] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0063] In this patent, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit it; those skilled in the art will readily understand that the above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A force-temperature in-situ monitoring device during composite material grinding, characterized in that, include: Force measuring unit, temperature measuring unit, and control unit, wherein: The force measuring unit includes a force gauge (1) fixedly disposed on the upper left side of the magnetic base (84) for measuring the force on the workpiece (9) during grinding, and a first clamp (2) fixedly disposed above the middle part of the force gauge (1) for clamping the workpiece (9). The force gauge (1) includes: a data terminal (11), a fixed area (12), and a force measuring area (13); wherein, the fixed area (12) is fixedly disposed on the left and right sides of the force gauge (1); the force measuring area (13) is fixedly disposed in the middle of the two fixed areas (12) and is provided with a force sensor; the data terminal (11) is fixedly disposed in the middle left side of the fixed area (12) and is fixedly connected to the sensor of the force measuring area (13); The first clamp (2) includes: a base plate (21), a side plate (22), a support rail (23), a movable block (24), a fixed block (25), and a first bolt (26); wherein, the base plate (21) is fixed above the force measuring area (13) through a fixed through hole and bolt; the side plate (22) is an L-shaped block, its short side contacts the base plate (21) and is fixed above the base plate (21) through a fixed through hole and bolt on its long side; the support rail (23) has grooves on both sides that are adapted to the long side of the side plate (22) and is fixed above the center of the base plate (21) through the side plate (22); the left and right sides of the support rail (23) are strip blocks, and the rear A rectangular block is fixedly provided on the upper side, and the same rectangular block is fixedly provided on the upper front side with a through hole in the middle that is compatible with the first bolt (26). The front block and the two side strip blocks form a convex groove at the bottom. The movable block (24) is a convex-shaped block with its protruding end compatible with the upper end of the convex groove of the support rail (23). The fixed block (25) is fixedly provided on the lower part of the protruding end of the movable block (24) by bolts, and its width is the same as the width of the lower end of the groove of the support rail (23). The first bolt (26) passes through the through hole fixedly provided on the front rectangular block of the support rail (23) and is fixedly connected to the movable block (24) through the mounting hole provided on the surface of the movable block (24). The temperature measuring unit includes a support and positioning platform (4) fixed on the upper right side of the magnetic base (84) via a magnetic support (85), a clamping device (5) fixed on the support and positioning platform (4), and an infrared camera (3) fixed on one side of the upper end of the clamping device (5). The clamping device (5) includes a first degree of freedom moving module (51) for adjusting the overall height of the infrared camera (3), a second degree of freedom moving module (52) for adjusting the overall front-back linear position of the infrared camera (3), a third degree of freedom moving module (53) for adjusting the overall left-right linear position of the infrared camera (3), and a gimbal (54) for controlling the pitch angle of the infrared camera (3). The first degree-of-freedom movement module (51), the second degree-of-freedom movement module (52), and the third degree-of-freedom movement module (53) each include: a cover plate (501), a bearing support seat (502), a lead screw (503), a back plate (504), a sliding plate (505), a first motor (506), a connecting piece (507), and a transmission component (508); wherein, the cover plate (501) is fixedly disposed at the uppermost end of the first degree-of-freedom movement module (51); the top of the bearing support seat (502) is fixedly connected to the lower left side of the cover plate (501) by bolts, and a rolling bearing matching the lead screw (503) is fixedly disposed in the middle of its lower side and a matching bearing cover plate is fixedly disposed thereon; the lead screw (503) is fixedly disposed between the two bearing support seats (502) by rolling bearing; the upper end of the back plate (504) is open to the light source. The cover plate (501) is fixedly connected to the lower right side of the cover plate (501) by bolts, and a cross roller bearing is fixedly provided on the side facing the lead screw (503); the slide plate (505) is sleeved on the outside of the lead screw (503) by a lead screw nut fixedly provided in the middle through hole, and its side facing the back plate (504) is concave and adapted to the width of the back plate (504). In addition, a cross roller bearing adapted to the cross roller bearing of the back plate (504) is fixedly provided on the concave surface; the upper left side of the connector (507) is fixedly connected to the bearing support seat (502) at the lower end of the lead screw (503) and the lower end of the back plate (504) by bolts; the lower end of the first motor (506) is fixedly provided on the upper right side of the connector (507) by bolts; the transmission component (508) is fixedly provided inside the connector (507); The gimbal (54) includes a clamping platform (541), an extension arm (542), a fixed shaft (543), an arc-shaped slider (544), an arc-shaped rack (545), an arc-shaped slide rail (546), a power component (547), and a housing support (548). The housing support (548) is primarily a rectangular box-shaped structure. A concave mounting plate is fixed to the front of this box-shaped structure, and the housing support (548) is fixed to the concave rear surface of the sliding plate (505) of the first degree-of-freedom movement module (51) via side plates with through holes on both sides of the concave mounting plate. Simultaneously, the box-shaped structure… The structure has fan-shaped side plates fixed at both ends on the left side, and a support seat adapted to the fixed shaft (543) is fixed at the center of the fan-shaped side plate; the power component (547) includes a second motor (547a) fixedly mounted on the motor mounting base behind the housing support (548), an output shaft (547c) fixedly mounted inside the housing support (548), and a gear (547b) fixedly sleeved in the middle of the output shaft (547c); the inner wall of the arc-shaped rack (545) is smooth, and a rack adapted to the gear (547b) is fixedly mounted on the outer side, with the upper ends recessed inward on both sides. The clamping platform (541) is mainly composed of a rectangular plate and side plates fixed on both sides. The side plates are fixed with through holes for fixed connection with the infrared camera (3), and the rectangular plate is fixed with multiple through holes in the middle. The extension arm (542) is mainly composed of a rectangular block, a ring and a T-shaped block fixedly connected in sequence. The rectangular block is fixed below the clamping platform (541). The two ends of the fixed shaft (543) are respectively fixed to the fan-shaped side plate support of the outer shell support (548), and the middle section is sleeved on the extension arm (541). 2) Inside the ring; the arc-shaped slider (544) is fixed to one side of the T-shaped block of the extension arm (542) by the left side plate and bolts and is fixed to the same side of the upper end of the arc-shaped rack (545) by the right side plate and bolts. At the same time, an arc-shaped side plate corresponding to the inner and outer grooves of the arc-shaped slide rail (546) is also fixed on one side; the arc-shaped slide rail (546) is fixed to the inside of the fan-shaped side plate of the outer shell support (548) by bolts. The inner and outer walls of the slide rail are fixed with grooves and baffles for preventing the arc-shaped slider (544) from falling off are fixed at both ends of the grooves. The control unit includes a motion controller (6) for real-time acquisition of the force and temperature data of the workpiece (9) and intelligent adjustment of the position, pitch and focal length of the infrared camera (3); the control unit controls the temperature measuring unit, and the force and temperature data of the grinding workpiece during the processing are measured in real time through the force measuring unit and the temperature measuring unit, so as to provide data support for the study of the removal of composite materials and its removal mechanism during the grinding process.

2. The monitoring device according to claim 1, characterized in that, The second degree of freedom movement module (52) slide plate (505) is fixedly connected to the first degree of freedom movement module (51) connector (507) by bolts; the third degree of freedom movement module (53) slide plate (505) is fixedly connected to the second degree of freedom movement module (52) back plate (504) by bolts.

3. The monitoring device according to claim 1, characterized in that, The transmission component (508) includes a first pulley (508a), a belt (508b), and a second pulley (508c); wherein the first pulley (508a) is fixedly sleeved on the shaft of the first motor (506) passing through the connector (507), and the second pulley (508c) is fixedly sleeved on the lower end of the lead screw (503) passing through the bearing support (502) and the connector (507), and the first pulley (508a) and the second pulley (508c) are rotatably connected by the belt (508b).

4. The monitoring device according to any one of claims 1-3, characterized in that, The supporting positioning platform (4) includes: a working platform (41), a positioning plate (42), a fixing plate (43), and a second bolt (44); wherein, the left side of the working platform (41) is a rectangular flat plate with a fixed positioning mounting hole, and the right side is also fixedly provided with a rectangular side plate, the upper right side of which is also provided with a concave flat plate, and the protruding parts at both ends of the concave flat plate are fixedly provided with multiple strip-shaped and circular through holes; the right side of the positioning plate (42) is fixedly provided with a mounting hole that matches the second bolt (44), and the upper part of it is fixedly provided with a mounting hole for positioning the plate (42). The mounting holes are positioned and their positions correspond to the positions of the strip-shaped through holes of the working platform (41); the upper end of the fixing plate (43) is fixedly provided with multiple mounting holes and these mounting holes match the circular through holes of the working platform (41), and a through hole adapted to the second bolt (44) is fixedly provided in the middle of the fixing plate (43), the position of which corresponds to the position of the mounting hole of the positioning plate (42); the second bolt (44) is fixedly connected to the fixing plate (43) through the through holes of the positioning plate (42) and the mounting holes of the fixing plate (43).

5. The monitoring device according to any one of claims 1-3, characterized in that, The infrared camera (3) can be adjusted in a counterclockwise direction in the vertical plane at an angle of -80° to 10°.

6. A monitoring method using the force-temperature in-situ monitoring device in the composite material grinding process according to any one of claims 1-5, characterized in that, Includes the following steps: S1: Ensure the grinding machine, force measuring unit, and temperature measuring unit are in normal working condition; check the power supply, sensors, and connecting cables of the equipment for proper functioning. S2: Fix the force gauge (1) on the upper left side of the magnetic base (84), and fix the first clamp (2) on the upper side of the force gauge (1). Then, use the first clamp (2) to clamp the workpiece (9). S3: Fix the support positioning platform (4) on the upper right side of the magnetic base (84), fix the clamping device (5) in a suitable position on the support positioning platform (4) according to the grinding requirements of the workpiece (9), and finely adjust the position and pitch angle of the infrared camera (3) through the motion controller (6); S4: Turn on the power of the grinding machine and perform grinding of the workpiece (9). Monitor the image transmitted by the infrared camera (3) through the display terminal (61), and adjust the position and pitch angle of the infrared camera according to the change of the grinding surface of the workpiece (9) to obtain a good field of view. At the same time, observe whether the infrared camera interferes with the grinding machine. S5: After the workpiece (9) is finished grinding, turn off the power of the grinding machine and clean the table. Export the force and temperature data of the workpiece (9) in the mobile controller (6) for subsequent statistical analysis.

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