Metal workpiece inner diameter laser measuring device based on intelligent sensor

Abstract

The invention discloses a metal workpiece inner diameter laser measuring device based on an intelligent sensor, and relates to the technical field of inner diameter laser measurement, the metal workpiece inner diameter laser measuring device comprises a numerical control machine tool and a microcomputer, the top of the numerical control machine tool is provided with a control device, and the output end of the control device is fixedly provided with a measuring column; the surface of the numerical control machine tool is provided with a driving module, the surface of the measuring column is provided with a laser transmitter and a laser receiver, and the device comprises a measuring table which is fixedly installed in the numerical control machine tool; the carrying rod is fixedly mounted at the output end of the numerical control machine tool driving module; through linkage of three-point positioning and matt paint spraying, it is ensured that spraying and measuring areas are consistent, so that signals captured by the laser receiver are clearer, and calculation of the inner diameter is more accurate.

Description

Technical Field

[0001] This invention relates to the field of laser measurement technology for internal diameter, specifically to a laser measurement device for the internal diameter of metal workpieces based on intelligent sensors. Background Technology

[0002] The laser measurement device for the inner diameter of metal workpieces based on intelligent sensors is a non-contact, high-precision measuring device. It is mainly used to measure parameters such as the inner diameter, roundness, and cylindricity of workpieces such as metal pipes, bearings, and cylinders. The inner diameter is calculated by measuring the reflection or obstruction signal of the laser beam on the inner wall of the workpiece.

[0003] Patent publication number CN118794362B relates to a laser measuring instrument for the inner diameter of metal workpieces. It includes a support frame, a main measuring column that is internally mounted on the left side of a mounting plate, and the upper end of the main measuring column connected to the output end of a motor above the mounting plate. An air-storing bladder is installed in a slot inside the support frame. A flow channel is formed inside the main measuring column, and a ring of upper through holes is formed on the upper outer side of the main measuring column, while a ring of lower through holes is formed on the lower outer side. This laser measuring instrument for the inner diameter of metal workpieces facilitates the removal of dust and impurities from the surface of the first laser ranging component, significantly reducing the amount of dust in the surrounding environment and preventing excessive dust from affecting the optical measurement accuracy of the laser measuring instrument. Therefore, it facilitates the first laser ranging component in accurately measuring the inner diameter of metal workpieces.

[0004] The aforementioned patent improves the convenience of laser measurement of the inner diameter of metal workpieces. By blowing away dust and impurities from the surface of the first laser ranging component, it avoids a large amount of dust affecting the optical measurement accuracy of the laser measuring instrument. However, if the laser measuring instrument is continuously in operation and is not turned off in time or is turned on before testing, it will pose a danger to the surrounding working environment and affect its service life. At the same time, for smooth metal workpieces, the laser will be refracted after emission due to the smoothness of the metal surface. This refraction will affect the propagation path of the laser beam, thereby affecting the accuracy of the laser receiver in capturing the reflected light, and further affecting the accuracy of the measurement results. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a laser measurement device for the inner diameter of metal workpieces based on intelligent sensors, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a laser measuring device for the inner diameter of a metal workpiece based on an intelligent sensor, comprising a CNC machine tool and a microcomputer. A control device is mounted on the top of the CNC machine tool, and a measuring column is fixedly installed at the output end of the control device. A drive module is mounted on the surface of the CNC machine tool, and a laser emitter and a laser receiver are mounted on the surface of the measuring column. The device includes: a sensor module housed inside the measuring column; a measuring platform fixedly installed inside the CNC machine tool; and a mounting rod fixedly installed at the output end of the CNC machine tool's drive module. The CNC machine tool's drive module is activated, driving the mounting rod. The system comprises: a movable element; a positioning plate fixedly mounted on the surface of the mounting rod; a movable tube slidably mounted on the circumferential surface of the mounting rod; a support rod fixedly mounted on the circumferential surface of the movable tube; a triangular frame fixedly mounted on the circumferential surface of the support rod, the movable tube driving the support rod to move, and the support rod driving the triangular frame to move synchronously; a sliding frame slidingly penetrating the top of the measuring platform; a spraying device fixedly mounted inside the sliding frame; an outer frame fixedly mounted on the surface of the sliding frame; and a roller rotating through the surface of the outer frame, the roller rising along the inclined plane of the triangular frame, driving the outer frame to rise synchronously.

[0007] According to the above technical solution, an elastic telescopic rod is fixedly installed on the surface of the movable tube, a rectangular plate is fixedly installed on the circumferential surface of the moving end of the elastic telescopic rod, and a handle is fixedly installed on the top of the moving end of the elastic telescopic rod. Pulling the handle upward causes the moving end of the elastic telescopic rod to rise, thereby causing the rectangular plate to move upward, and the bottom of the triangular frame to contact the surface of the measuring table.

[0008] According to the above technical solution, four limiting rods are fixedly installed at the bottom of the rectangular plate, and four through holes are opened on the side of the movable tube near the rectangular plate. The four limiting rods are in contact with the inner wall of the corresponding through holes. A blind hole is opened on the surface of the mounting rod. The side of the limiting rod away from the rectangular plate is in contact with the blind hole. When the rectangular plate moves upward, the rectangular plate moves to make the limiting rod disengage from the blind hole of the mounting rod.

[0009] According to the above technical solution, the measuring platform is equipped with a stabilizing device to ensure the smooth operation of laser measurement. The stabilizing device is equipped with a protective device to improve the safety of the sliding frame movement. The stabilizing device includes a pad, a vertical rod, a contact plate, a lifting tube, and a connecting plate. The movement of the outer frame causes the connecting plate to rise synchronously. The connecting plate causes the lifting tube to slide vertically along the vertical rod. The pad is fixedly installed on the surface of the measuring platform. The vertical rod is fixedly installed on the top of the pad. The contact plate is fixedly installed on the top of the vertical rod. The lifting tube is slidably installed on the circumferential surface of the vertical rod. The connecting plate is fixedly installed on the circumferential surface of the lifting tube. The side of the connecting plate away from the lifting tube is fixedly connected to the outer frame.

[0010] According to the above technical solution, a fixed frame is fixedly installed on the circumferential surface of the lifting tube, and a rubber plate is rotatably passed through the surface of the fixed frame. A reset spring is provided between the rubber plate and the fixed frame. When the rubber plate rotates, it compresses the reset spring, and the reset spring generates a reverse elastic force to press the rubber plate tightly against the contact plate.

[0011] According to the above technical solution, the top of the pad and the bottom of the sliding frame are in contact, the top of the contact plate is in contact with the surface of the measuring table, and the pad and the contact plate that are in stable contact with the measuring table provide stable support for the vertical rod to prevent it from shaking. The surface of the contact plate is provided with anti-slip texture.

[0012] According to the above technical solution, the protective device includes a connecting frame, a movable block, a round rod, a rotating plate, a mounting frame, a cylindrical rod, a stop plate, and several arc-shaped pieces. The fixed frame drives the cylindrical rod to move upward, and the cylindrical rod drives the mounting frame to move upward synchronously. The connecting frame is fixedly installed on the top of the pad. The movable block is slidably installed on the surface of the connecting frame. The round rod is fixedly inserted through the surface of the movable block. One end of the rotating plate is rotatably installed on the surface of the movable block. The mounting frame is rotatably installed on the other end of the rotating plate. The upward movement of the mounting frame drives one end of the rotating plate to rise, causing the rotating plate to tilt, thereby pulling the movable block at the other end towards the mounting frame. The cylindrical rod is fixedly inserted through the surface of the mounting frame. The stop plate is fixedly installed on the circumferential surface of the round rod. Several arc-shaped pieces are fixedly installed on the bottom of the inner wall of the connecting frame. A groove is opened on the side of the connecting frame near the round rod. The round rod contacts the groove. The cylindrical rod is fixedly inserted through the surface of the fixed frame.

[0013] According to the above technical solution, the side of the abutment plate near the mounting frame is provided with an inclined surface. The arc-shaped piece itself is elastic. After the inclined surface of the abutment plate and the curved surface of the arc-shaped piece come into contact, they are squeezed, forcing the arc-shaped piece to deform.

[0014] This invention provides a laser measurement device for the inner diameter of metal workpieces based on intelligent sensors. It has the following advantages: (1) The laser measuring device for the inner diameter of metal workpiece based on intelligent sensor can control the electrical connection of the laser emitter and laser receiver through an inductive proximity sensor. When the metal workpiece has not reached the accurate position, the laser emitter and laser receiver will not work, preventing the laser emitter and laser receiver from being in a continuous working state, which would cause the working temperature of the laser emitter and laser receiver to rise continuously and affect the service life of the laser emitter and laser receiver. At the same time, it prevents the laser emitter and laser receiver from being in a continuous working state, which would cause laser reflection when placing the metal workpiece to cause eye damage, thereby improving the safety around the laser emitter and laser receiver.

[0015] (2) The laser measuring device for the inner diameter of metal workpieces based on intelligent sensors releases the fixation of the movable tube, allowing it to slide freely. By adjusting the position of the movable tube, it can quickly adapt to workpieces of different sizes, ensuring the accurate positioning of the spraying device and improving the applicability of laser measurement of inner diameter. At the same time, the spraying device uniformly sprays matte paint to form a high reflectivity measurement surface. Through the linkage of three-point positioning and matte paint spraying, it ensures that the spraying and measurement areas are consistent, thereby making the signal captured by the laser receiver clearer and the calculation of the inner diameter more accurate.

[0016] (3) The laser measuring device for the inner diameter of metal workpiece based on intelligent sensors has a lifting tube that enhances the overall stability of the outer frame through a connecting plate. By enhancing the stability of the outer frame, the sliding frame is prevented from shaking during movement, which would affect the accuracy of the matte paint spraying and ensure the smooth progress of the laser measurement operation. At the same time, the rubber plate and anti-slip texture are tightly attached to form a high-friction contact. Through the high-friction contact between the rubber plate and the contact plate, the stability of the outer frame is enhanced, and the normal movement resistance is restored after the contact is broken.

[0017] (4) The laser measuring device for the inner diameter of metal workpiece based on intelligent sensor has a fixed frame that drives the cylindrical rod to move, and the cylindrical rod drives the mounting frame to move synchronously. The fixed frame drives the moving block to move synchronously, which enhances the response speed and ensures the continuity of movement, thereby improving the overall efficiency of measurement. At the same time, the deformed arc plate applies continuously increasing resistance to the backing plate. By increasing the additional resistance when the sliding frame is reset downward, it ensures that the sliding frame can make smooth contact with the backing plate, reduces the impact vibration during reset, and extends the service life of the spraying device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the CNC machine tool of the present invention; Figure 2 This is a schematic diagram of the overall structure of the measuring platform of the present invention; Figure 3 This is a schematic diagram of the internal structure of the measuring platform of the present invention; Figure 4 This is a schematic diagram of the rectangular plate position structure of the present invention; Figure 5 This is a schematic diagram of the position and structure of the elastic telescopic rod of the present invention; Figure 6 This is a schematic diagram of the position and structure of the spraying device of the present invention; Figure 7 This is a schematic diagram showing the position and structure of the stabilizing device and the protective device of the present invention; Figure 8 This is a schematic diagram of the position structure of the fixing frame and cylindrical rod of the present invention; Figure 9 This is a schematic diagram of the overall structure of the rotating plate of the present invention.

[0019] In the diagram: 1. CNC machine tool; 2. Control device; 3. Measuring column; 4. Measuring table; 5. Mounting rod; 6. Positioning plate; 7. Movable tube; 8. Support rod; 9. Triangular frame; 10. Sliding frame; 11. Spraying device; 12. Outer frame; 13. Roller; 14. Elastic telescopic rod; 15. Rectangular plate; 16. Handle; 171. Pad; 172. Vertical rod; 173. Contact plate; 174. Lifting tube; 175. Connecting plate; 176. Fixed frame; 177. Rubber plate; 178. Reset spring; 181. Connecting frame; 182. Moving block; 183. Round rod; 184. Rotating plate; 185. Mounting bracket; 186. Cylindrical rod; 187. Support plate; 188. Arc-shaped piece. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-6One embodiment of the present invention is: a laser measuring device for the inner diameter of a metal workpiece based on an intelligent sensor, comprising a CNC machine tool 1 and a microcomputer. A control device 2 is provided on the top of the CNC machine tool 1, and a measuring column 3 is fixedly installed at the output end of the control device 2. A drive module is provided on the surface of the CNC machine tool 1, and a laser emitter and a laser receiver are provided on the surface of the measuring column 3. The device includes: a sensor module is provided inside the measuring column 3, and an inductive proximity sensor is provided inside the sensor module. The inductive proximity sensor is electrically connected to the laser emitter and the laser receiver. The inductive proximity sensor is used to control the switch of the electrical connection between the laser emitter and the laser receiver. The inductive proximity sensor is used to detect when the metal workpiece is placed in an accurate position. When the metal workpiece is not detected to be placed in an accurate position, the laser emitter and the laser receiver will not work, preventing the laser emitter and the laser receiver from continuously operating, which would cause the operating temperature of the laser emitter and the laser receiver to continuously rise, affecting the service life of the laser emitter and the laser receiver. Simultaneously, it prevents the laser emitter and the laser receiver from... The continuous operation of the device can cause laser reflection when placing metal workpieces, which may damage the eyes. A proximity sensor protects the operator. The system includes: a measuring platform 4, fixedly installed inside the CNC machine tool 1; a mounting rod 5, fixedly installed at the output end of the CNC machine tool 1's drive module; a positioning plate 6, fixedly installed on the surface of the mounting rod 5; a movable tube 7, slidably installed on the circumference of the mounting rod 5; a support rod 8, fixedly installed on the circumference of the movable tube 7; a triangular frame 9, fixedly installed on the circumference of the support rod 8; a sliding frame 10, slidingly extending through the top of the measuring platform 4; a spraying device 11, fixedly installed inside the sliding frame 10; an outer frame 12, fixedly installed on the surface of the sliding frame 10; and a roller 13, rotating through the surface of the outer frame 12. Through the linkage of three-point positioning and matte paint spraying, the spraying and measurement areas are ensured to be consistent, resulting in a clearer signal captured by the laser receiver and more accurate inner diameter calculation.

[0022] An elastic telescopic rod 14 is fixedly installed on the surface of the movable tube 7. A rectangular plate 15 is fixedly installed on the circumferential surface of the moving end of the elastic telescopic rod 14. A handle 16 is fixedly installed on the top of the moving end of the elastic telescopic rod 14. The bottom of the triangular frame 9 is in contact with the surface of the measuring table 4. By adjusting the position of the movable tube 7, workpieces of different sizes can be quickly adapted to ensure the accurate positioning of the spraying device 11 and improve the applicability of laser measurement of inner diameter.

[0023] Four limiting rods are fixedly installed at the bottom of the rectangular plate 15. Four through holes are opened on the side of the movable tube 7 near the rectangular plate 15. The four limiting rods are in contact with the inner wall of the corresponding through holes. Blind holes are opened on the surface of the mounting rod 5. The side of the limiting rod away from the rectangular plate 15 fits into the blind hole. By installing four limiting rods at the bottom of the rectangular plate 15, the fixation of the movable tube 7 is enhanced.

[0024] In this embodiment, the workpiece to be measured is placed in the positioning area of ​​the measuring table 4. The drive module of the CNC machine tool 1 is activated, driving the mounting rod 5 to move towards the sliding frame 10. The movement of the mounting rod 5 causes the positioning plate 6 and the movable tube 7 to move synchronously. After the positioning plate 6 contacts the outer wall of the workpiece, the workpiece is automatically positioned through three-point contact to ensure accurate workpiece positioning. At the same time, the movable tube 7 drives the support rod 8 to move, and the support rod 8 drives the triangular frame 9 to move synchronously. The triangular frame 9 provides support for the mounting rod 5 through the support rod 8 to prevent the mounting rod 5 from shifting. When the triangular frame 9 contacts the roller 13, the roller 13... The roller 13 and spraying device 11 rise to their initial positions as the roller 13 and spraying device 11 ascend along the inclined surface of the triangular frame 9. The roller 12 then rises synchronously, driving the sliding frame 10 to rise as well. The spraying device 11 is activated to uniformly spray matte paint onto a designated area of ​​the workpiece's inner wall, forming a high-reflectivity measuring surface. After spraying, the drive module resets the mounting rod 5, the positioning plate 6 detaches from the workpiece, and the triangular frame 9 descends, forcing the roller 13 and spraying device 11 back to their initial positions. Subsequently, the control device 2 drives the mounting rod 5 to descend to the preset height, activating the laser emitter to generate laser light in the matte paint area, refracting the light... The laser signal is captured by the receiver and transmitted to a microcomputer. An algorithm calculates the workpiece's inner diameter. Through the linkage of three-point positioning and matte paint spraying, the spraying and measurement areas are ensured to be consistent, resulting in a clearer signal from the laser receiver and more accurate inner diameter calculations. When measuring workpieces of different sizes, the movement of the positioning plate 6 changes accordingly. The position of the movable tube 7 needs to be adjusted to adapt to the new measurement requirements. The operator pulls the handle 16 upwards, causing the moving end of the elastic telescopic rod 14 to rise, which in turn moves the rectangular plate 15 upwards. The movement of the rectangular plate 15 causes the limiting rod to exit through the blind hole of the mounting rod 5. Release the fixation of the movable tube 7, allowing it to slide freely; push the movable tube 7 to a preset position to match the new measurement requirements; release the handle 16, and the moving end of the elastic telescopic rod 14 will reset under elastic action, causing the rectangular plate 15 to descend. The rectangular plate 15 will drive the limiting rod to descend synchronously, allowing the limiting rod to re-enter the corresponding blind hole of the mounting rod 5, locking the position of the movable tube 7 and ensuring that it is stable and does not shift. By adjusting the position of the movable tube 7, it can quickly adapt to workpieces of different sizes, ensuring the accurate positioning of the spraying device 11 and improving the applicability range of laser measurement of inner diameter.

[0025] Please see Figures 1-9In another embodiment of the present invention, based on the above embodiments, the measuring platform 4 is provided with a stabilizing device to ensure the smooth operation of laser measurement. The stabilizing device is provided with a protective device to improve the safety of the sliding frame 10 during movement. The stabilizing device includes a pad 171, a vertical rod 172, a contact plate 173, a lifting tube 174, and a connecting plate 175. The pad 171 is fixedly installed on the surface of the measuring platform 4, the vertical rod 172 is fixedly installed on the top of the pad 171, the contact plate 173 is fixedly installed on the top of the vertical rod 172, the lifting tube 174 is slidably installed on the circumferential surface of the vertical rod 172, and the connecting plate 175 is fixedly installed on the circumferential surface of the lifting tube 174. The side of the connecting plate 175 away from the lifting tube 174 is fixedly connected to the outer frame 12. By enhancing the stability of the outer frame 12, the sliding frame 10 is prevented from shaking during movement, which would affect the accuracy of the matte paint spraying and ensure the smooth operation of the laser measurement.

[0026] A fixed frame 176 is fixedly installed on the circumferential surface of the lifting tube 174. A rubber plate 177 is rotatably passed through the surface of the fixed frame 176. A reset spring 178 is provided between the rubber plate 177 and the fixed frame 176. The rubber plate 177 contacts the contact plate 173 with high friction, which enhances the stability of the outer frame 12 and restores normal movement resistance after the contact is broken.

[0027] The top of the pad 171 contacts the bottom of the sliding frame 10, and the top of the contact plate 173 contacts the surface of the measuring table 4. The surface of the contact plate 173 is provided with anti-slip texture. By providing anti-slip texture, the coefficient of friction between the rubber plate 177 and the contact plate 173 is enhanced, thereby stabilizing and enhancing the stability of the outer frame 12.

[0028] The protective device includes a connecting frame 181, a movable block 182, a round rod 183, a rotating plate 184, a mounting bracket 185, a cylindrical rod 186, a stop plate 187, and several arc-shaped pieces 188. The connecting frame 181 is fixedly installed on the top of the pad 171. The movable block 182 is slidably installed on the surface of the connecting frame 181. The round rod 183 is fixedly inserted through the surface of the movable block 182. One end of the rotating plate 184 is rotatably installed on the surface of the movable block 182, and the mounting bracket 185 is rotatably installed on the other end of the rotating plate 184. A cylindrical rod 186 is fixedly inserted through the surface of the mounting bracket 185, abutment 187 is fixedly installed on the circumferential surface of the cylindrical rod 183, and several arc-shaped pieces 188 are fixedly installed on the bottom of the inner wall of the connecting frame 181. A sliding groove is provided on the side of the connecting frame 181 near the cylindrical rod 183, and the cylindrical rod 183 contacts the sliding groove. The cylindrical rod 186 is fixedly inserted through the surface of the fixing frame 176. The moving block 182 is driven to move synchronously through the fixing frame 176, which enhances the response speed, ensures the continuity of movement, and thus improves the overall efficiency of measurement.

[0029] The side of the back plate 187 near the mounting bracket 185 has an inclined surface, and the arc-shaped piece 188 itself is elastic. By increasing the additional resistance when the sliding frame 10 is reset downward, it ensures that the sliding frame 10 can make smooth contact with the pad plate 171, reduces the impact vibration during reset, and extends the service life of the spraying device 11.

[0030] In this embodiment, during operation, the outer frame 12 moves, causing the connecting plate 175 to rise synchronously. The connecting plate 175 then causes the lifting tube 174 to slide vertically along the vertical rod 172. The lifting tube 174 further causes the fixed frame 176 to move upward, and the movement of the fixed frame 176 causes the rubber plate 177 to move upward. During this process, the pad 171 and contact plate 173, which are in stable contact with the measuring table 4, provide stable support for the vertical rod 172, preventing it from swaying. The stability of the vertical rod 172 itself enhances the stability of the sliding of the lifting tube 174. The lifting tube 174, through the connecting plate 175, further enhances the overall stability of the outer frame 12, keeping it stable during the lifting process. By enhancing the stability of the outer frame 12, the sliding frame 10 is prevented from swaying during movement, which would affect the accuracy of the matte paint spraying and ensure the accuracy of the coating. As the optical measurement operation proceeds smoothly, when the rubber plate 177 moves upward, the side of it away from the fixed frame 176 contacts the contact plate 173. The contact plate 173 applies continuous resistance to the rubber plate 177, forcing the rubber plate 177 to rotate towards the fixed frame 176. During rotation, the rubber plate 177 compresses the reset spring 178, and the reset spring 178 generates a reverse elastic force to press the rubber plate 177 tightly against the contact plate 173, so that the anti-slip texture of the rubber plate 177 and the contact plate 173 are tightly fitted, forming a high-friction contact. The increased friction can suppress the slight vibration of the outer frame 12 and enhance the stability of the spraying device 11 during operation. Through the high-friction contact between the rubber plate 177 and the contact plate 173, the stability of the outer frame 12 is enhanced, and the normal movement resistance is restored after the contact is broken. The fixed frame 176 drives the cylindrical rod 186 to move upward, which in turn drives the mounting frame 185 to move upward synchronously. The upward movement of the mounting frame 185 drives one end of the rotating plate 184 to rise, causing the rotating plate 184 to tilt. This pulls the moving block 182 at the other end towards the mounting frame 185. The movement of the moving block 182 drives the cylindrical rod 183 to move synchronously. Simultaneously, the cylindrical rod 183 drives the abutment plate 187 towards the mounting frame 185. When the inclined surface of the abutment plate 187 contacts the curved surface of the arc-shaped piece 188, pressure is generated, forcing the arc-shaped piece 188 to deform. The deformed arc-shaped piece 188 and the abutment plate 187 quickly separate and rapidly recover under their own elasticity. The fixed frame 176 drives the moving block 182 to move synchronously, enhancing the response speed and ensuring continuous motion, thereby improving the overall measurement efficiency. The fixed frame 176 drives the cylindrical rod 186 to move downward, which in turn drives the mounting frame 185 to move downward. The mounting bracket 185 moves downward, driving one end of the rotating plate 184 to descend, restoring the rotating plate 184 to parallelism, thereby pushing the moving block 182 at the other end to reset. The reset of the moving block 182 drives the round rod 183 to move away from the mounting bracket 185, and the round rod 183 drives the abutment plate 187 to move synchronously. The abutment plate 187 and the concave surface of the arc-shaped piece 188 come into contact. The moving abutment plate 187 presses against the arc-shaped piece 188, causing the arc-shaped piece 188 to deform under pressure. The deformed arc-shaped piece 188 applies continuously increasing resistance to the abutment plate 187, effectively slowing down the movement speed of the abutment plate 187 until the arc-shaped piece 188 and the abutment plate 187 disengage. At this time, the abutment plate 187 has obtained sufficient deceleration and buffering. By increasing the additional resistance when the sliding frame 10 resets downward, it is ensured that the sliding frame 10 can smoothly contact the pad 171, reducing the impact vibration during reset and extending the service life of the spraying device 11.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kind of intelligent sensor-based metal workpiece inner diameter laser measuring device, including numerical control machine tool (1) and microcomputer, the top of the numerical control machine tool (1) is provided with control device (2), the output of the control device (2) is fixedly installed with measuring column (3), the surface of the numerical control machine tool (1) is provided with driving module, the surface of the measuring column (3) is provided with laser emitter and laser receiver, it is characterized by, Include: The inside of the measuring column (3) is provided with a sensor module; Measuring table (4), the measuring table (4) is fixedly installed inside the numerical control machine tool (1); The mounting rod (5) is fixedly installed at the output end of the driving module of the numerical control machine tool (1); The positioning plate (6) is fixedly installed on the surface of the mounting rod (5); The movable pipe (7) is slidingly installed on the circumference of the mounting rod (5); The support rod (8) is fixedly installed on the circumference of the movable pipe (7); The triangular frame (9) is fixedly installed on the circumference of the support rod (8); The sliding frame (10) is slidingly penetrated in the top of the measuring table (4); The spraying device (11) is fixedly installed in the sliding frame (10); The outer frame (12) is fixedly installed on the surface of the sliding frame (10); The roller (13) is rotatably penetrated in the surface of the outer frame (12).

2. The intelligent sensor based laser measurement device for inner diameter of metal workpiece as claimed in claim 1 wherein: The surface of the movable pipe (7) is fixedly installed with an elastic telescopic rod (14), the circumference of the moving end of the elastic telescopic rod (14) is fixedly installed with a rectangular plate (15), the top of the moving end of the elastic telescopic rod (14) is fixedly installed with a handle (16), the bottom of the triangular frame (9) is in contact with the surface of the measuring table (4); Wherein, the measuring table (4) is provided with a stabilizing device for ensuring the smooth operation of laser measurement, and the stabilizing device is provided with a protection device for improving the safety of the sliding frame (10).

3. The intelligent sensor based laser measurement device for inner diameter of metal workpiece as claimed in claim 2 wherein: The bottom of the rectangular plate (15) is fixedly installed with four limiting rods, one side of the movable pipe (7) close to the rectangular plate (15) is provided with four through holes, the inner walls of the four limiting rods and the corresponding through holes are in contact, the surface of the mounting rod (5) is provided with a blind hole, and one side of the limiting rod away from the rectangular plate (15) is attached to the blind hole.

4. The intelligent sensor based laser measurement device for inner diameter of metal workpiece as claimed in claim 3 wherein: The stabilizing device includes a pad (171), a vertical rod (172), a contact plate (173), a lifting pipe (174) and a connecting plate (175), the pad (171) is fixedly installed on the surface of the measuring table (4), the vertical rod (172) is fixedly installed on the top of the pad (171), the contact plate (173) is fixedly installed on the top of the vertical rod (172), the lifting pipe (174) is slidingly installed on the circumference of the vertical rod (172), the connecting plate (175) is fixedly installed on the circumference of the lifting pipe (174), and one side of the connecting plate (175) away from the lifting pipe (174) is fixedly connected with the outer frame (12).

5. The intelligent sensor based laser measurement device for inner diameter of metal workpiece as claimed in claim 4 wherein: The circumference of the lifting pipe (174) is fixedly installed with a fixed frame (176), the surface of the fixed frame (176) is rotatably penetrated with a rubber plate (177), and the rubber plate (177) and the fixed frame (176) are provided with a reset spring (178).

6. The intelligent sensor based laser measurement device for inner diameter of metal workpiece as claimed in claim 5 wherein: The top of the cushion plate (171) is in contact with the bottom of the sliding frame (10), the top of the contact plate (173) is in contact with the surface of the measuring table (4), and the surface of the contact plate (173) is provided with anti-skid lines.

7. The intelligent sensor based laser measurement device for inner diameter of metal workpiece as claimed in claim 6 wherein: The protection device comprises a connecting frame (181), a moving block (182), a round rod (183), a rotating plate (184), a mounting frame (185), a cylindrical rod (186), a resisting plate (187) and a plurality of arc-shaped pieces (188), the connecting frame (181) is fixedly installed at the top of the cushion plate (171), the moving block (182) is slidingly installed on the surface of the connecting frame (181), the round rod (183) is fixedly penetrated through the surface of the moving block (182), one end of the rotating plate (184) is rotatably installed on the surface of the moving block (182), the mounting frame (185) is rotatably installed at the other end of the rotating plate (184), the cylindrical rod (186) is fixedly penetrated through the surface of the mounting frame (185), the resisting plate (187) is fixedly installed on the circumferential surface of the round rod (183), and the plurality of arc-shaped pieces (188) are fixedly installed at the bottom of the inner wall of the connecting frame (181); one side of the connecting frame (181) close to the round rod (183) is provided with a sliding groove, the round rod (183) is in contact with the sliding groove, and the cylindrical rod (186) is fixedly penetrated through the surface of the fixed frame (176).

8. The intelligent sensor based laser measurement device for inner diameter of metal workpiece as claimed in claim 7 wherein: The side of the resisting plate (187) close to the mounting frame (185) is provided with an inclined surface, and the arc-shaped piece (188) is elastic by itself.

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