A smart hollow truncated cone measurement system and its measurement method

Abstract

This invention provides an intelligent hollow truncated cone measurement system, relating to the field of hollow truncated cone measurement technology. It includes a horizontal hollow truncated cone measuring device and a system control module. The horizontal hollow truncated cone measuring device comprises a rangefinder, base, turntable, support base, extension plate, lifting and fastening screws, connecting plate, support platform, bubble level, leveling screws, angle disc, angle positioning pin, and lifting device. The system control module includes a parameter setting module, an information input module, an online measurement module, and a data module, used to control and process the input and output of information in the intelligent hollow truncated cone measurement system. The intelligent hollow truncated cone measurement system has a simple structure, is easy to carry, convenient to operate during the measurement process, provides intuitive readings, and offers short measurement time and accurate data.

Description

Technical Field

[0001] This invention belongs to the field of hollow frustum measurement technology, and particularly relates to an intelligent hollow frustum measurement system and its measurement method. Background Technology

[0002] Currently, the measurement of the diameter, roundness, height difference between the centers of the large and small openings, and concentricity of the large and small openings of hollow truncated cones is mostly done by placing the hollow truncated cone on a platform and leveling it, then using a plumb line to lay out the height difference between the centers of the large and small openings and the concentricity between the centers of the large and small openings, and using a steel tape measure to measure the diameter. This method is time-consuming, requires many personnel, and produces inaccurate data with large measurement errors, leading to errors in subsequent product assembly and causing the product's length and other dimensions to exceed technical requirements.

[0003] Therefore, it is necessary to develop a convenient and accurate intelligent hollow truncated cone measurement system and method to solve the bottleneck encountered in the inspection process of hollow truncated cone manufacturing. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an intelligent hollow frustum measuring system and its measuring method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides an intelligent hollow truncated cone measurement system, including a horizontal hollow truncated cone measuring device and a system control module;

[0006] The horizontal hollow frustum measuring device includes a rangefinder, a base, a turntable, a support seat, an extension plate, a lifting fastening screw, a connecting plate, a support platform, a bubble level, a horizontal adjustment screw, an angle disc, an angle positioning pin, and a lifting device. The turntable is rotatably installed on the base. The angle disc is installed on the turntable. The support seat is installed on the angle disc. The angle positioning pin is located above the angle disc. The support platform is installed on the side of the support seat. The extension plate is located below the support platform and is connected to the support seat at one end. A positioning lifting groove is provided at the end of the extension plate away from the support seat. The lifting device can be inserted into the positioning lifting groove in a vertically movable manner. A threaded through-hole communicating with the positioning lifting groove is provided on the side of the extension plate. The lifting device is fixed by screwing the lifting fastening screw into the threaded through-hole on the side of the extension plate. The connecting plate is placed above the support platform. The upper end of the lifting device is connected to the connecting plate. The rangefinder is placed above the connecting plate. When the rangefinder is placed horizontally, the rear end face, the front plane of the support seat (the side where the support seat is connected to the support platform is the front end), the central axis of the turntable, and the central axis of the base are in the same plane;

[0007] The bubble level is installed on the support seat. The cross-section of the base is in a "convex" shape, including a coaxial upper cylindrical section and a lower cylindrical section. At least two threaded through-holes are provided on the lower cylindrical section. The horizontal adjustment screw is screwed into the threaded through-hole on the lower cylindrical section. The horizontal hollow frustum measuring device can be adjusted to a horizontal state by rotating the horizontal adjustment screw.

[0008] The system control module includes a parameter setting module, an information input module, an online measurement module, and a data module, and is used to control and process the input and output of information in the intelligent hollow frustum measuring system.

[0009] Furthermore, the parameter setting module is used to set the theoretical value and tolerance of the to-be-measured hollow frustum;

[0010] The information input module is used to input the production order number, drawing number, part number of the to-be-measured hollow frustum, and information of the measuring personnel;

[0011] The online measurement module includes an online module, a measurement information module, a measurement module, a recording module, and a display module;

[0012] The online module is used to achieve the communication connection between the horizontal hollow frustum measuring device and the system control module, as well as the communication connection between the parameter setting module, the information input module, the online measurement module, and the data module in the system control module;

[0013] The measurement information module includes measurement location, number of measurement points, and measurement point names;

[0014] The measurement module is used to send measurement commands;

[0015] The recording module is used to record the horizontal distance, height difference, and horizontal angle information measured by the horizontal hollow truncated cone measuring device.

[0016] The display module is used to display relevant information for a single measurement point;

[0017] The data module includes a data processing module, a data display module, and a result storage module, which are used to process, display, and store the data measured by the horizontal hollow truncated cone measuring device.

[0018] Furthermore, the support base is L-shaped, with its front end being a vertical plane.

[0019] Furthermore, the lifting device includes a first connecting frame, a longitudinal fine-tuning screw, a longitudinal fine-tuning screw, a second connecting frame, and a lifting rod. The first connecting frame is U-shaped and consists of three first horizontal plates and two first vertical plates connected together. The two first horizontal plates of the first connecting frame are connected to the connecting plate. A threaded through hole is provided on the middle first horizontal plate of the first connecting frame. The second connecting frame is U-shaped and consists of two second vertical plates and one second horizontal plate connected together. A threaded through hole is provided on the second horizontal plate of the second connecting frame. The longitudinal fine-tuning screw is fixedly connected to the longitudinal fine-tuning screw. One end of the longitudinal fine-tuning screw is screwed into the threaded through hole on the middle first horizontal plate of the first connecting frame, and the other end is screwed into the threaded through hole on the second horizontal plate of the second connecting frame. The lifting rod is inserted through the positioning lifting groove, and the upper end of the lifting rod is connected to the second connecting frame.

[0020] Furthermore, it also includes a front bracket in the shape of a "U". The front bracket is composed of two third vertical plates and one third horizontal plate connected together. Two threaded through holes are opened on both sides of the connecting plate, the third horizontal plate of the front bracket and the first horizontal plate of the connecting frame. The connecting plate, the front bracket and the connecting frame are placed in sequence from top to bottom and are connected and fixed by fastening screws.

[0021] Furthermore, it also includes a rear bracket and two springs. The rear bracket is U-shaped and consists of two fourth vertical plates and one fourth horizontal plate connected together. The two fourth vertical plates have threaded through holes. The rear bracket is located below the support platform. One end of each of the two springs is fixed to one of the two third vertical plates of the front bracket. Threaded through holes are provided on both sides of the support platform. The other end of each of the two springs is connected to a screw. The two screws are screwed into the two fourth vertical plates of the rear bracket and the threaded through holes on both sides of the support platform, respectively, to fix the two springs to the rear bracket and the two sides of the support platform.

[0022] Furthermore, the turntable is a hollow cylinder with a cover at one end. A through hole is provided at the center of the cover of the turntable. A through hole is provided at the central axis of the base and the angle disk. The through holes on the angle disk, the turntable and the base are aligned and interconnected.

[0023] Furthermore, a threaded through hole is provided on the side of the turntable. By screwing a transverse fastening screw into the threaded through hole on the side of the turntable, the relative position of the turntable and the base can be fixed.

[0024] Furthermore, a handle is installed on the rear end face of the support base, and the lower part of the lifting rod is connected to the lifting handrail.

[0025] Furthermore, the end of the connecting plate away from the support base is connected to the front positioning base, which is located above the connecting plate.

[0026] This application provides a method for measuring a hollow frustum using the aforementioned intelligent hollow frustum measurement system, specifically including the following steps:

[0027] Step 0: Mark the large-mouth measurement points and the small-mouth measurement points.

[0028] Paint the large-mouth baseline and the small-mouth baseline on the inner wall of the hollow truncated cone, and mark a number of large-mouth measurement points and a number of small-mouth measurement points on the large-mouth baseline and the small-mouth baseline. The number of large-mouth measurement points and small-mouth measurement points is more than two.

[0029] Step 1: Placement and adjustment. Place the hollow truncated cone and the horizontal hollow truncated cone measuring device, and adjust the hollow truncated cone and the horizontal hollow truncated cone measuring device to a horizontal state.

[0030] Step 2: System connection. Turn on the system control module and the rangefinder, and establish a communication connection through the online module.

[0031] Step 3: Parameter setting and information input. In the parameter setting module, set the theoretical value and tolerance of the hollow cone to be measured. In the information input module, input the production order number, drawing number, part number and measurement personnel information of the hollow cone to be measured. In the measurement information module, select the measurement location, number of measurement points and measurement point name information.

[0032] Step 4: Measurement and Recording. Send a measurement command to the measurement module. The horizontal hollow truncated cone measuring device measures the hollow truncated cone to obtain the horizontal distance, height difference, and horizontal angle information. The recording module and display module record and display the measurement data respectively.

[0033] Step 5: Data processing. The horizontal hollow truncated cone measuring device measures the hollow truncated cone and transmits the data to the data module. The data processing module processes the data to obtain data on radius, roundness, flatness, height difference between the centers of the large and small openings, and concentricity between the centers of the large and small openings.

[0034] Step 6: Result display. The data display module displays the measurement data, processed data, and the parameters, inputs, and selections set in Step 3, and judges and displays whether the measurement results are qualified.

[0035] Step 7: Generate and store the report. The results storage module generates and stores the report.

[0036] Further, the specific steps of step 1 are as follows: place the hollow cone on the assembly platform with the large opening of the hollow cone at the bottom and the small opening at the top, and adjust the hollow cone to a horizontal state using shims.

[0037] Near the center of the large opening of the hollow truncated cone, place the horizontal hollow truncated cone measuring device on the assembly table, then rotate the turntable to check the deviation of the bubble level, turn the level adjustment screw to center the bubble in the bubble level, and adjust the horizontal hollow truncated cone measuring device to a horizontal state.

[0038] Furthermore, in step 4, the specific steps for the horizontal hollow truncated cone measuring device to measure the hollow truncated cone are as follows:

[0039] Step 4.1: Measure and record the measurement points on the large opening of the hollow truncated cone.

[0040] Step 4.1.1: Rotate the turntable so that the angle positioning pin coincides with the 0° mark on the angle disc in the vertical direction; in the measurement information module, select the hollow truncated cone large opening as the measurement position, and select the number of measurement points and the name of the measurement points; turn on the rangefinder, loosen the lifting fastening screw, raise or lower the lifting rod so that the laser point emitted by the rangefinder falls near the baseline of the hollow truncated cone large opening, and tighten the lifting fastening screw;

[0041] Loosen the horizontal fastening screws and rotate the turntable. When the laser point emitted by the rangefinder falls directly above or below the first large-aperture measurement point on the large-aperture baseline, tighten the horizontal fastening screws. Then, rotate the longitudinal fine-tuning screws until the laser point emitted by the rangefinder falls on the first large-aperture measurement point. Send a measurement command to the measurement module. The display module displays the horizontal distance, height difference, and horizontal angle information of the first large-aperture measurement point of the hollow cone. Check the relevant information of the first large-aperture measurement point. If the information is accurate, the recording module records the data.

[0042] Step 4.1.2: Loosen the horizontal fastening screws, rotate the turntable, and when the laser point emitted by the rangefinder falls directly above or below the second large-aperture measurement point on the large-aperture baseline, tighten the horizontal fastening screws; then, rotate the longitudinal fine-tuning screws until the laser point emitted by the rangefinder falls on the second large-aperture measurement point; send a measurement command to the measurement module, and the measurement data is automatically transmitted to the display module. The display module displays the horizontal distance, height difference, and horizontal angle information of the second large-aperture measurement point of the hollow cone truncated cone. Check the relevant information of the second large-aperture measurement point. If the information is accurate, the recording module records the data.

[0043] Step 4.1.3: Similarly, following the method in Step 4.1.2, measure and record the horizontal distance, height difference, and horizontal angle information of other large-diameter measurement points of the hollow truncated cone;

[0044] Step 4.2: Measure and record the measurement points on the small opening of the hollow truncated cone.

[0045] Refer to step 4.1 to measure and record the horizontal distance, height difference, and horizontal angle information of the measurement points on the small opening of the hollow truncated cone.

[0046] Furthermore, in step 5, the calculation method for the data processing module to process the measured horizontal distance, height difference, and horizontal angle information is as follows:

[0047] X i =H i cosθ............(1)

[0048] Y i =H i sinθ............(2)

[0049] Z i =V i ............(3)

[0050] (X i -X O ) 2 +(Y i -Y O )2 +(Z i -Z O ) 2 -R 2 =0............(4)

[0051]

[0052] ΔR i =R i -R............(6)

[0053]

[0054]

[0055] x i =h i cosθ............(9)

[0056] y i =h i sinθ............(10)

[0057] z i =v i ............(11)

[0058] (x i -x O ) 2 +(y i -y O ) 2 +(z i -z O ) 2 -r 2 =0............(12)

[0059]

[0060] Δr i =r i -r............(14)

[0061]

[0062]

[0063] Δ 高 =|z0-Z0|............(17)

[0064]

[0065] In formulas (1) to (18), X i (i = 1, 2...n) represents the measured value of the large-aperture measuring point Pi of the hollow truncated cone in the X direction of the measurement coordinate system, Yi represents the measured value of the large-aperture measuring point Pi of the hollow truncated cone in the Y direction of the measurement coordinate system, and Z represents the measured value of the large-aperture measuring point Pi of the hollow truncated cone in the Y direction of the measurement coordinate system. i Measurement point P of the large opening of the hollow truncated cone i The measured value in the Z direction under the measurement coordinate system, H i Measurement point P of the large opening of the hollow truncated cone i V is the horizontal distance relative to the horizontal hollow truncated cone measuring device. i Measurement point P of the large opening of the hollow truncated cone i Relative to the height difference of the rangefinder in the horizontal state of the horizontal hollow truncated cone measuring device, X0 is the coordinate value of the center of the large opening of the hollow truncated cone in the X direction, Y0 is the coordinate value of the center of the large opening of the hollow truncated cone in the Y direction, Z0 is the coordinate value of the center of the large opening of the hollow truncated cone in the Z direction, and R is the radius of the large opening of the hollow truncated cone. i Measurement point P of the large opening of the hollow truncated cone i The distance from the center of the large opening of the hollow truncated cone, ΔR i Measurement point P of the large opening of the hollow truncated cone i The deviation of the distance from the center of the large opening of the hollow truncated cone relative to the radius of the large opening of the hollow truncated cone; ΔR is the roundness of the large opening of the hollow truncated cone; ΔZ is the flatness of the large opening of the hollow truncated cone.

[0066] x i (i = 1, 2...n) represents the measuring point p at the small opening of the hollow frustum. i The measured value in the X direction under the measurement coordinate system, y i For the small opening measurement point p of the hollow truncated cone i The measured value in the Y direction under the measurement coordinate system, z i For the small opening measurement point p of the hollow truncated cone i The measured value in the Z direction under the measurement coordinate system, h i For the small opening measurement point p of the hollow truncated cone i Relative to the horizontal distance of the horizontal hollow truncated cone measuring device, v i For the small opening measurement point p of the hollow truncated cone i Relative to the height difference of the rangefinder in the horizontal state of the horizontal hollow truncated cone measuring device, x0 is the coordinate value of the center of the small opening of the hollow truncated cone in the x-direction, y0 is the coordinate value of the center of the small opening of the hollow truncated cone in the y-direction, z0 is the coordinate value of the center of the small opening of the hollow truncated cone in the z-direction, and r is the radius of the small opening of the hollow truncated cone. i For the small opening measurement point p of the hollow truncated cone i The distance Δr from the center of the small opening of the hollow frustum of cones i For the small opening measurement point p of the hollow truncated conei The deviation of the distance from the center of the small opening of the hollow truncated cone relative to the radius of the small opening of the hollow truncated cone; Δr is the roundness of the small opening of the hollow truncated cone; Δz is the flatness of the small opening of the hollow truncated cone.

[0067] θ is the measurement point P i p i Δ is the angle of rotation relative to the 0° horizontal direction on the angle disk (horizontal angle). 高 Let Δ be the height difference between the center of the large opening and the center of the small opening of the hollow truncated cone. 水 The concentricity of the center of the large opening of the hollow truncated cone and the center of the small opening of the hollow truncated cone.

[0068] Furthermore, in step 6, if the calculation result is within the tolerance range, the measurement result is qualified; otherwise, it is unqualified.

[0069] Beneficial effects:

[0070] This invention provides an intelligent hollow truncated cone measuring system, comprising a horizontal hollow truncated cone measuring device and a system control module. The horizontal hollow truncated cone measuring device includes a rangefinder, a base, a turntable, a support base, an extension plate, a lifting fastening screw, a connecting plate, a support platform, a bubble level, a leveling screw, an angle disc, an angle positioning pin, and a lifting device. The turntable is rotatably mounted on the base, the angle disc is mounted on the turntable, the support base is mounted on the angle disc, the angle positioning pin is located above the angle disc, the support platform is mounted on the side of the support base, and the extension plate is located below the support platform, with one end connected to the support base. A positioning lifting groove is formed at the end of the extension plate away from the support base, and the lifting device can be vertically inserted into the positioning lifting groove. A positioning lifting groove is formed on the side of the extension plate. The lifting device is fixed by screwing the lifting fastening screw into the threaded through hole on the side of the extension plate through the threaded through hole of the lifting slot. The connecting plate is placed above the support platform, and the upper end of the lifting device is connected to the connecting plate. The rangefinder is placed above the connecting plate, and the rear end of the rangefinder is always in contact with the front end plane of the support base. When the rangefinder is placed horizontally, the rear end face of the rangefinder, the front end plane of the support base, the central axis of the turntable, and the central axis of the base are all on the same plane. The lower end of the base has a threaded through hole, and the horizontal hollow truncated cone measuring device can be adjusted to a horizontal state by rotating the horizontal adjustment screw. The system control module includes a parameter setting module, an information input module, an online measurement module, and a data module, which are used to control and process the input and output of information in the intelligent hollow truncated cone measuring system. The above-mentioned intelligent hollow truncated cone measuring system has a simple structure and is easy to carry. Compared with the measurement method of using a steel tape measure to encircle the circle and a plumb line to lay out the measurement, the method of measuring a hollow truncated cone using the intelligent hollow truncated cone measuring system provided by this invention is convenient to operate, provides intuitive readings, and has a short measurement time and accurate data.

[0071] The following will further explain the concept, specific structure, and technical effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Attached Figure Description

[0072] Figure 1 This is a front view schematic diagram of a horizontal hollow truncated cone measuring device.

[0073] Figure 2 Right view schematic diagram of a horizontal hollow truncated cone measuring device;

[0074] Figure 3 A top view schematic diagram of a horizontal hollow truncated cone measuring device;

[0075] Figure 4 This is a front view schematic diagram of the support base and support platform;

[0076] Figure 5 This is a top view of the support base and support platform;

[0077] Figure 6 This is a schematic diagram of the main view of the extension board;

[0078] Figure 7 This is a top view of the extension plate;

[0079] Figure 8 This is a schematic diagram illustrating the application of an intelligent hollow truncated cone measurement system.

[0080] Figure 9 Flowchart of the measurement method for an intelligent hollow truncated cone measurement system;

[0081] Figure 10 Diagram of the system control module;

[0082] The attached figures are labeled as follows:

[0083] 1. Hollow truncated cone; 2. Assembly table; 3. Support pier; 4. Large opening of hollow truncated cone; 5. Small opening of hollow truncated cone; 6. Intelligent hollow truncated cone measuring system; 7. Horizontal hollow truncated cone measuring device; 8. System control module; 9. Base; 10. Turntable; 11. Support seat; 12. Support platform; 13. Extension plate; 14. Positioning lifting groove; 15. Connecting plate; 16. Front positioning seat; 17. Front bracket; 18. Rear bracket; 19. Connecting frame 1. 20. Connecting frame 2. 21. Lifting rod 22. Support frame 23. Angle positioning pin 24. Scale amplifier 25. Angle disc 26. Horizontal adjustment screw 27. Magnet 28. Lower handle 29. Horizontal fastening screw 30. Spring 31. Longitudinal fine-tuning screw 32. Longitudinal fine-tuning screw 33. Lifting handrail 34. Lifting fastening screw 35. Handle 36. Bubble level 37. Upper handle 38. Rangefinder Detailed Implementation

[0084] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0085] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. The dimensions and thicknesses of each component shown in the drawings are arbitrary, and the present invention does not limit the dimensions and thicknesses of each component. To make the illustrations clearer, the thickness of some components has been appropriately exaggerated in the drawings.

[0086] Example:

[0087] like Figures 1-10 As shown, in a preferred embodiment, an intelligent hollow truncated cone measurement system is provided, including a horizontal hollow truncated cone measuring device 7 and a system control module 8;

[0088] The horizontal hollow truncated cone measuring device 7 includes a rangefinder 38, a base 9, a turntable 10, a support base 11, an extension plate 13, a lifting fastening screw 34, a connecting plate 15, a support platform 12, a lifting device, a front bracket 17, a rear bracket 18, a bubble level 36, a level adjustment screw 26, an angle disc 25, an angle positioning pin 23, and two springs 30. The support base 11 is L-shaped with a vertical front end. The turntable 10 is rotatably mounted on the base 9. The angle disc 25 has angle markings on its upper surface and is mounted on the turntable 10. Together, the angle disc 25 and the turntable 10 can rotate 360° on the base 9. The support base 11 is mounted on the angle disk 25. The angle positioning pin 23 is a red pointer, which is mounted above the angle disk 25 via a support frame 22. The support frame 22 includes upper and lower support surfaces. The angle positioning pin 23 is mounted on the upper support surface of the support frame 22. To better view the position of the pointer, a scale amplifier 24 is mounted on the angle positioning pin 23. The lower support surface of the support frame 22 is connected to the lower cylindrical section of the base 9. The turntable 10 is a hollow cylinder with a cover at one end. A through hole is opened at the center of the cover of the turntable 10. Through holes are opened at the central axis of the base 9 and the angle disk 25. The through holes on the angle disk 25, the turntable 10, and the base 9 are aligned and interconnected. A threaded through hole is opened on the side of the turntable 10. By screwing the transverse fastening screw 29 into the threaded through hole on the side of the turntable 10, the relative position of the turntable 10 and the base 9 is fixed. The support platform 12 is installed on the side of the support base 11, and the extension plate 13 is located below the support platform 12, with one end connected to the support base 11. The end of the extension plate 13 away from the support base 11 has a positioning lifting groove 14. The lifting device can be inserted into the positioning lifting groove 14 vertically. The side of the extension plate 13 has a threaded through hole communicating with the positioning lifting groove 14. The lifting device is fixed by screwing the lifting fastening screw 34 into the threaded through hole on the side of the extension plate 13.

[0089] The lifting device includes a first connecting frame 19, a longitudinal fine-tuning screw 31, a longitudinal fine-tuning screw 32, a second connecting frame 20, and a lifting rod 21. The first connecting frame 19 is U-shaped and is composed of three first horizontal plates and two first vertical plates connected together. A threaded through hole is opened on the middle first horizontal plate of the first connecting frame 19. The second connecting frame 20 is U-shaped and is composed of two second vertical plates and one second horizontal plate connected together. A threaded through hole is opened on the second horizontal plate of the second connecting frame 20. The longitudinal fine-tuning screw 32 is fixedly connected to the longitudinal fine-tuning screw 31. One end of the longitudinal fine-tuning screw 31 is screwed into the threaded through hole opened on the middle first horizontal plate of the first connecting frame 19, and the other end is screwed into the threaded through hole opened on the second horizontal plate of the second connecting frame 20. The height of the laser point can be finely adjusted by rotating the longitudinal fine-tuning screw 32. The lifting rod 21 is inserted through the positioning lifting groove 14, and the upper end of the lifting rod 21 is connected to the second connecting frame 20.

[0090] The front bracket 17 is U-shaped and is composed of two third vertical plates and one third horizontal plate. Two threaded through holes are opened on both sides of the connecting plate 15, the third horizontal plate of the front bracket 17 and the first horizontal plate of the connecting frame 19. The connecting plate 15, the front bracket 17 and the connecting frame 19 are placed in order from top to bottom and are connected and fixed by fastening screws.

[0091] The connecting plate 15 is placed above the support platform 12, and the rangefinder 38 is placed above the connecting plate 15. The rear end of the rangefinder 38 is always in contact with the support base 11. When the rangefinder 38 is placed horizontally, the rear end face of the support base 11, the front end face of the support base 11 (the side of the support base 11 connected to the support platform 12 is the front end), the central axis of the turntable 10 and the central axis of the base 9 are on the same plane.

[0092] The rear bracket 18 is U-shaped and consists of two fourth vertical plates and one fourth horizontal plate connected together. The two fourth vertical plates have threaded through holes. The rear bracket 18 is located below the support platform 12. One end of each of the two springs 30 is fixed to the two third vertical plates of the front bracket 17. Threaded through holes are provided on both sides of the support platform 12. The other end of each of the two springs 30 is connected to a screw. The two screws are screwed into the two fourth vertical plates of the rear bracket 18 and the threaded through holes on both sides of the support platform 12, thereby fixing the two springs 30 to the rear bracket 18 and the support platform 12 respectively.

[0093] The bubble level 36 is mounted on the support base 11. The cross-section of the base 9 is convex, including a coaxial upper cylindrical section and a lower cylindrical section. Three threaded through holes are opened on the lower cylindrical section. The level adjustment screw 26 is screwed into the threaded through holes on the lower cylindrical section. The horizontal hollow cone measuring device can be adjusted to a horizontal state by rotating the level adjustment screw 26.

[0094] Three semi-circular through holes are opened on the lower cylindrical section of the base 9;

[0095] A top handle 37 is installed on the upper end of the support base 11, and a bottom handle 28 is installed on the outer side of the cylindrical section of the base 9. The horizontal hollow cone truncated cone measuring device can be disassembled into upper and lower parts for easy carrying. After separation: the bottom handle can lift the lower base and other parts; the top handle can lift the turntable, support base, rangefinder and other components.

[0096] A handle 35 is installed on the rear end face of the support base 11. The handle 35 can drive the angle disc 25, turntable 10, support base 11 and rangefinder 38 to rotate horizontally around the base 9. The lower part of the lifting rod 21 is connected to the lifting handrail 33.

[0097] The end of the connecting plate 15 away from the support base 11 is connected to the front positioning base 16, which is located above the connecting plate 15.

[0098] The system control module 8 includes a parameter setting module, an information input module, an online measurement module, and a data module, which are used to control and process the input and output of information in the intelligent hollow cone truncated cone measurement system 6.

[0099] The parameter setting module is used to set the theoretical value and tolerance of the hollow truncated cone 1 to be measured;

[0100] The information input module is used to input the production order number, drawing number, part number, and measurement personnel information of the hollow cone 1 to be measured;

[0101] The online measurement module includes an online module, a measurement information module, a measurement module, a recording module, and a display module;

[0102] The online module is used to realize the communication connection between the horizontal hollow truncated cone measuring device 7 and the system control module 8, as well as the communication connection between the parameter setting module, information input module, online measurement module and data module in the system control module 8.

[0103] The measurement information module includes information such as measurement location, number of measurement points, and measurement point names;

[0104] The measurement module is used to send measurement commands;

[0105] The recording module is used to record the horizontal distance, height difference, and horizontal angle information measured by the horizontal hollow truncated cone measuring device 7;

[0106] The display module is used to display relevant information for a single measurement point;

[0107] The data module, including a data processing module, a data display module, and a result storage module, is used to process, display, and store the data measured by the horizontal hollow truncated cone measuring device 7.

[0108] This embodiment provides a method for measuring a hollow frustum using the above-mentioned intelligent hollow frustum measurement system, specifically including the following steps:

[0109] Step 0: Mark the large-mouth measurement points and the small-mouth measurement points.

[0110] Paint the large-mouth baseline and the small-mouth baseline on the inner wall of the hollow truncated cone 1, and mark a number of large-mouth measurement points and a number of small-mouth measurement points on the large-mouth baseline and the small-mouth baseline. The number of large-mouth measurement points and small-mouth measurement points is more than two.

[0111] The large-mouth baseline and the small-mouth baseline are the lines where the large-mouth 4 and the small-mouth 5 of the hollow truncated cone are located, respectively;

[0112] Step 1: Placement and adjustment: Place the hollow truncated cone 1 and the horizontal hollow truncated cone measuring device 7, and adjust the hollow truncated cone 1 and the horizontal hollow truncated cone measuring device 7 to a horizontal state.

[0113] The specific steps of step 1 are as follows: Place the hollow cone 1 on the assembly table 2 through the support block 3, with the large opening 4 of the hollow cone 1 at the bottom and the small opening 5 of the hollow cone 1 at the top, and adjust the hollow cone 1 to a horizontal state using shims.

[0114] Near the center of the large opening 4 of the hollow truncated cone, place the horizontal hollow truncated cone measuring device 7 on the assembly table 2, then rotate the turntable 10 to check the deviation of the bubble level 36, rotate the three horizontal adjusting screws 26 to center the bubble in the bubble level 36, adjust the horizontal hollow truncated cone measuring device 7 to a horizontal state, and put the three magnets 27 into the semi-circular through holes at the lower end of the base 9 respectively, and fix the base 9 on the assembly table 2;

[0115] Step 2: System connection. Turn on the system control module 8 and the rangefinder 38, and establish a communication connection through the online module; for example, through a Bluetooth device to achieve a Bluetooth connection.

[0116] Step 3: Parameter setting and information input. In the parameter setting module, set the theoretical value and tolerance of the hollow cone 1 to be measured. In the information input module, input the production order number, drawing number, part number and measurement personnel information of the hollow cone 1 to be measured. In the measurement information module, select the measurement location, number of measurement points and measurement point name information.

[0117] Step 4: Measurement and Recording. Send a measurement command to the measurement module. The horizontal hollow truncated cone measuring device 7 measures the hollow truncated cone 1 to obtain the horizontal distance, height difference, and horizontal angle information. The recording module and display module record and display the measurement data respectively.

[0118] In step 4, the specific steps for the horizontal hollow truncated cone measuring device 7 to measure the hollow truncated cone 1 are as follows:

[0119] Step 4.1: Measure and record the measurement points on the large opening 4 of the hollow truncated cone.

[0120] Step 4.1.1: Rotate the turntable 10 so that the angle positioning pin 23 coincides with the 0° mark on the angle disc in the vertical direction; in the measurement information module, select the hollow truncated cone large opening 4 as the measurement position, and select the number of measurement points and the name of the measurement points; turn on the rangefinder 38; loosen the lifting fastening screw 34; hold the lifting handle 33; raise or lower the lifting rod 21 so that the laser point emitted by the rangefinder 38 falls near the reference line of the large opening of the hollow truncated cone 1; tighten the lifting fastening screw 34.

[0121] Loosen the horizontal fastening screw 29, hold the handle 35, and rotate the turntable 10. When the laser point emitted by the rangefinder 38 falls directly above or below the first large-aperture measurement point on the large-aperture baseline, tighten the horizontal fastening screw 29. Then, rotate the longitudinal fine-tuning screw 32. The longitudinal fine-tuning screw 31 will rise and fall through the through holes of connecting frame 19 and connecting frame 20, allowing for fine-tuning in the vertical direction by about 5mm, until the laser point emitted by the rangefinder 38 falls on the first large-aperture measurement point. Send a measurement command to the measurement module. The rangefinder 38 performs the measurement according to the command. The display module displays the horizontal distance, height difference, and horizontal angle information of the first large-aperture measurement point of the hollow cone 1. Check the relevant information of the first large-aperture measurement point. If the information is accurate, the recording module records the data. If the information is incorrect, reselect the incorrect information such as the number of measurement points, measurement point name, and measurement location, and click the "Measure" dialog box to re-measure and record.

[0122] Step 4.1.2: Loosen the transverse fastening screw 29, hold the handle 35, and rotate the turntable 10. When the laser point emitted by the rangefinder 38 falls directly above or below the second large-aperture measurement point on the large-aperture baseline, tighten the transverse fastening screw 29. Then, rotate the longitudinal fine-tuning screw 32 until the laser point emitted by the rangefinder 38 falls on the second large-aperture measurement point. Send a measurement command to the measurement module. The rangefinder 38 performs the measurement according to the command. The display module displays the horizontal distance, height difference, and horizontal angle information of the second large-aperture measurement point of the hollow truncated cone 1. Check the relevant information of the second large-aperture measurement point. If the information is accurate, the recording module records the data. If the information is inaccurate, reset and measure again. Record the data again if the information is accurate.

[0123] Step 4.1.3: Similarly, following the method in Step 4.1.2, measure and record the horizontal distance, height difference, and horizontal angle information of other large-diameter measurement points of the hollow truncated cone 1;

[0124] The height difference when the distance measuring instrument is 38 degrees above the horizontal position is a "+" value; the height difference when the distance measuring instrument is 38 degrees below the horizontal position is a "-" value.

[0125] Step 4.2: Measure and record the measurement points on the small opening 5 of the hollow truncated cone.

[0126] Refer to step 4.1 to measure and record the horizontal distance, height difference, and horizontal angle information of the measurement points on the small opening 5 of the hollow truncated cone.

[0127] Step 4.2.1: Rotate the turntable 10 so that the angle positioning pin 23 and the 0° mark on the angle disc 25 coincide in the vertical direction; in the measurement information module, select the hollow truncated cone small opening 5 as the measurement position, and select the number of measurement points and the name of the measurement points; turn on the rangefinder 38; loosen the lifting fastening screw 34; hold the lifting handle 33; raise or lower the lifting rod 21 so that the laser point emitted by the rangefinder 38 falls near the small opening reference line of the hollow truncated cone 1; tighten the lifting fastening screw 34.

[0128] Loosen the horizontal fastening screw 29, hold the handle 35, and rotate the turntable 10. When the laser point emitted by the rangefinder 38 falls directly above or below the first small-aperture measurement point on the small-aperture baseline, tighten the horizontal fastening screw 29. Then, rotate the longitudinal fine-tuning screw 32. The longitudinal fine-tuning screw 31 will rise and fall through the through holes of connecting frame 19 and connecting frame 20, allowing for fine-tuning in the vertical direction by about 5mm, until the laser point emitted by the rangefinder 38 falls on the first small-aperture measurement point. Send a measurement command to the measurement module. The rangefinder 38 performs the measurement according to the command. The display module displays the horizontal distance, height difference, and horizontal angle information of the first small-aperture measurement point of the hollow cone 1. Check the relevant information of the first small-aperture measurement point. If the information is accurate, the recording module records the data. If the information is incorrect, reselect the incorrect information such as the number of measurement points, measurement point name, and measurement location, and click the "Measure" dialog box to re-measure and record.

[0129] Step 4.2.2: Loosen the horizontal fastening screw 29, hold the handle 35, and rotate the turntable 10. When the laser point emitted by the rangefinder 38 falls directly above or below the second small-aperture measurement point on the small-aperture baseline, tighten the horizontal fastening screw 29. Then, rotate the longitudinal fine-tuning screw 32 until the laser point emitted by the rangefinder 38 falls on the second small-aperture measurement point. Send a measurement command to the measurement module. The rangefinder 38 performs the measurement according to the command. The display module displays the horizontal distance, height difference, and horizontal angle information of the second small-aperture measurement point of the hollow truncated cone 1. Check the relevant information of the second small-aperture measurement point. If the information is accurate, the recording module records the data. If the information is inaccurate, reset and measure again. Record the data again if the information is accurate.

[0130] Step 4.2.3: Similarly, following the method in Step 4.2.2, measure and record the horizontal distance, height difference, and horizontal angle information of other small-mouth measurement points of the hollow truncated cone 1;

[0131] The height difference between the small-diameter measurement points is a "-" value.

[0132] The system control module 8 can directly obtain the horizontal angle data through calculation. When the measurement points are evenly marked, 360 degrees divided by the number of large-mouth or small-mouth measurement points gives the angle between two adjacent measurement points. Then, combined with the measurement point name, the horizontal angle information can be obtained.

[0133] Adjust the three leveling screws to center the level bubble. After the measuring device is leveled, the rangefinder rotates 38 degrees horizontally to form a reference horizontal plane. All height differences are relative to this reference horizontal plane. When the pitch angle is zero degrees, the horizontal plane of the rangefinder is the reference horizontal plane.

[0134] Existing rangefinders can measure and display the slant distance, horizontal distance, height difference, and pitch angle relative to the measurement position (the reference set by the rangefinder). The slant distance, horizontal distance, and height form a right triangle. Since the horizontal hollow cone measuring device has been adjusted to a horizontal state, the height difference can be read directly.

[0135] Step 5: Data processing. The horizontal hollow truncated cone measuring device 7 measures the hollow truncated cone 1 and transmits the data to the data module. The data processing module processes the data to obtain data on radius, roundness, flatness, height difference between the centers of the large and small openings, and concentricity between the centers of the large and small openings.

[0136] In step 5, the data processing module performs the following calculations on the measured horizontal distance, height difference, and horizontal angle information:

[0137] X i =H i cosθ............(1)

[0138] Y i =H i sinθ............(2)

[0139] Z i =V i ............(3)

[0140] (X i -X O ) 2 +(Y i -Y O ) 2 +(Z i -Z O ) 2 -R 2 =0............(4)

[0141]

[0142] ΔRi =R i -R............(6)

[0143]

[0144]

[0145] x i =h i cosθ............(9)

[0146] y i =h i sinθ............(10)

[0147] z i =v i ............(11)

[0148] (x i -x O ) 2 +(y i -y O ) 2 +(z i -z O ) 2 -r 2 =0............(12)

[0149]

[0150] Δr i =r i -r............(14)

[0151]

[0152]

[0153] Δ 高 =|z0-Z O |............(17)

[0154]

[0155] In formulas (1) to (18), X i (i = 1, 2...n) represents the measured value of the large-aperture measuring point Pi of the hollow truncated cone in the X direction of the measurement coordinate system, Yi represents the measured value of the large-aperture measuring point Pi of the hollow truncated cone in the Y direction of the measurement coordinate system, and Z represents the measured value of the large-aperture measuring point Pi of the hollow truncated cone in the Y direction of the measurement coordinate system. i Measurement point P of the large opening of the hollow truncated cone iThe measured value in the Z direction under the measurement coordinate system, H i Measurement point P of the large opening of the hollow truncated cone i V is the horizontal distance relative to the horizontal hollow truncated cone measuring device. i Measurement point P of the large opening of the hollow truncated cone i Relative to the height difference of the rangefinder in the horizontal state of the horizontal hollow truncated cone measuring device, X0 is the coordinate value of the center of the large opening of the hollow truncated cone in the X direction, Y0 is the coordinate value of the center of the large opening of the hollow truncated cone in the Y direction, Z0 is the coordinate value of the center of the large opening of the hollow truncated cone in the Z direction, and R is the radius of the large opening of the hollow truncated cone. i Measurement point P of the large opening of the hollow truncated cone i The distance from the center of the large opening of the hollow truncated cone, ΔR i ΔR is the deviation of the distance between the measuring point Pi at the large opening of the hollow truncated cone and the center of the large opening of the hollow truncated cone relative to the radius of the large opening of the hollow truncated cone; ΔR is the roundness of the large opening of the hollow truncated cone; ΔZ is the flatness of the large opening of the hollow truncated cone.

[0156] x i (i = 1, 2...n) represents the measuring point p at the small opening of the hollow frustum. i The measured value in the X direction under the measurement coordinate system, y i For the small opening measurement point p of the hollow truncated cone i The measured value in the Y direction under the measurement coordinate system, z i For the small opening measurement point p of the hollow truncated cone i The measured value in the Z direction under the measurement coordinate system, h i For the small opening measurement point p of the hollow truncated cone i Relative to the horizontal distance of the horizontal hollow truncated cone measuring device, v i For the small opening measurement point p of the hollow truncated cone i Relative to the height difference of the rangefinder in the horizontal state of the horizontal hollow truncated cone measuring device, x0 is the coordinate value of the center of the small opening of the hollow truncated cone in the x-direction, y0 is the coordinate value of the center of the small opening of the hollow truncated cone in the y-direction, z0 is the coordinate value of the center of the small opening of the hollow truncated cone in the z-direction, and r is the radius of the small opening of the hollow truncated cone. i For the small opening measurement point p of the hollow truncated cone i The distance Δr from the center of the small opening of the hollow frustum of cones i For the small opening measurement point p of the hollow truncated cone i The deviation of the distance from the center of the small opening of the hollow truncated cone relative to the radius of the small opening of the hollow truncated cone; Δr is the roundness of the small opening of the hollow truncated cone; Δz is the flatness of the small opening of the hollow truncated cone.

[0157] θ represents the measurement points Pi and p. i Δ is the angle of rotation relative to the 0° horizontal direction on the angle disk (horizontal angle). 高Let Δ be the height difference between the center of the large opening and the center of the small opening of the hollow truncated cone. 水 The concentricity of the center of the large opening of the hollow truncated cone and the center of the small opening of the hollow truncated cone.

[0158] The large aperture center (X0, Y0, Z0) and the small aperture center (x0, y0, z0) are both fitted from three-dimensional coordinate points in the rangefinder coordinate system, representing the absolute positions of the large aperture center and the small aperture center in the rangefinder coordinate system. In this embodiment, the large aperture center (X0, Y0, Z0) is defined as (0, 0, 0).

[0159] Step 6: Result display. The data display module displays the measurement data, processed data, and the parameters, inputs, and selections set in Step 3, and judges and displays whether the measurement results are qualified.

[0160] The data display module can display all measurement information, process calculation data, and final data processing information such as radius, roundness, flatness, height difference, and concentricity for all measurement points at both the large and small openings.

[0161] If the calculation result is within the tolerance range, the measurement result is qualified; otherwise, it is unqualified.

[0162] Step 7: Generate and store the report. The results storage module generates and stores the report. If needed, the report can be exported.

[0163] The method for manufacturing the horizontal hollow frustum cone measuring device in this embodiment is as follows:

[0164] 1. Find a round steel bar, and precision machine the top and bottom planes and the outer diameter of the round steel bar to form base 9. After precision machining, the top and bottom ends of base 9 are both cylinders, and the cross-section of base 9 is convex.

[0165] 2. Drill three semi-circular through holes of equal diameter symmetrically on the lower cylindrical section of base 9, and drill three through holes of 8mm diameter symmetrically on the lower cylindrical section of base 9.

[0166] 3. Drill a through hole with a diameter of 3mm at the center of the upper plane of the base 9, and drill two holes with a diameter of 5mm and a depth of 8mm symmetrically on the outer side of the upper cylindrical section of the base 9.

[0167] 4. Find another round steel bar, and precision machine the top and bottom planes and inner and outer diameters of the round steel bar to form a hollow cylinder with a cap at one end, which is turntable 10; drill a 3mm diameter through hole in the center of the plane on the turntable, drill and tap two 2mm diameter through holes near the center of the plane on the turntable, and then drill and tap a 2mm diameter through hole on the side of the turntable.

[0168] 5. Finish machine an angled disk 25 with graduations on its surface, and drill two through holes with a diameter of 2mm near the center of the plane on the angled disk 25;

[0169] 6. Drill two through holes in the scale amplifier 24 for drilling and tapping.

[0170] 7. Find a sheet material and finely process it into a support frame 22, including a first support part in an L shape and a second support part connected to the first support part and inclined. Drill two through holes symmetrically on each of the lower plane (lower support surface) of the first support part and the second support part (upper support surface).

[0171] 8. Find a copper sheet material and finely process it into a support base 11. The support base 11 is in a square structure with a smaller upper part and a larger lower part, and its cross-section is in an L shape.Drill two holes with a diameter of 2 mm and a depth of 5 mm on the lower plane of the support base 11; drill two holes with a diameter of 2 mm and a depth of 5 mm along the long-axis center line at the lower ends of the front plane and the rear plane of the support base 11; the upper part of the front end of the support base 11 is connected to the support platform 12. Drill two holes with a diameter of 2 mm and a depth of 5 mm along the horizontal direction at the upper end of the rear plane of the support base 11. Drill a through hole with a diameter of 5 mm on the upper side surface of the support base 11; drill 1 hole with a diameter of 2 mm and a depth of 5 mm symmetrically on both sides of the support platform 12.

[0172] 9. Find an aluminum alloy sheet material and precisely turn it into an extension plate 13. The cross-section of the extension plate 13 is in an "L" shape. Drill two through holes with a diameter of 2 mm on the short axis of the extension plate 13. Cut a rectangular positioning and lifting groove 14 at the front end of the long axis of the extension plate 13. Drill 1 through hole with a diameter of 2 mm at the middle position corresponding to the positioning and lifting groove 14 on the side surface of the front end of the long axis of the extension plate 13.

[0173] 10. Find an aluminum alloy sheet material and finely process the six surfaces of the sheet material into a cuboid shape, which is the connecting plate 15. Drill two through holes with a diameter of 2 mm symmetrically at the upper part of the front end of the connecting plate 15. The front end of the connecting plate 15 is connected to the front positioning seat 16.

[0174] 11. Find an aluminum alloy sheet material and process it into brackets in a right-angled symmetric "concave" shape, namely the front bracket 17 and the rear bracket 18. Drill 1 through hole with a diameter of 2 mm symmetrically on both sides of the front bracket 17. Drill 1 through hole with a diameter of 2 mm symmetrically at the lower ends of the front bracket 17. Drill 1 through hole with a diameter of 2 mm symmetrically on both sides of the rear bracket 18.

[0175] 12. Find a copper sheet material and process it into two connecting frames, namely connecting frame one 19 and connecting frame two 20. The connecting frame one 19 is in a symmetric "U" shape as a whole, and the connecting frame two 12 is in a symmetric "U" shape as a whole. Drill 1 through hole with a diameter of 2 mm in the middle and on both sides of the connecting frame one 19. Drill 1 through hole with a diameter of 2 mm at the upper end of the connecting frame two 12. Drill 1 through hole with a diameter of 2 mm on the side surface of the connecting frame two 12.

[0176] 13. Find another aluminum alloy sheet and process it into a rectangular lifting rod 21. Drill a through hole with a diameter of 2mm at each end of the lifting rod 21.

[0177] 14. Machin three 8mm diameter screws as leveling screws 26, and screw the three leveling screws 26 into the through holes at the lower end of the base 9 respectively; find three cylindrical magnets 27, and place the three magnets 27 into the semi-circular through holes respectively;

[0178] 15. Place the lower handle 28 on the outside of the cylindrical section of the base 9. After the through holes at both ends of the lower handle 28 correspond one-to-one with the two deep holes on the outside of the cylindrical section of the base 9, fix the lower handle 28 on the base 9 by screwing in the screws.

[0179] 16. Place the angle disc 25 and the support base 11 on the turntable 10 in sequence. After the two 2mm diameter through holes near the center of the plane on the angle disc 25, the two 2mm diameter and 5mm depth holes on the lower plane of the support base 11, and the two 2mm through holes on the turntable 10 are aligned, connect and fix the angle disc 25, the support base 11 and the turntable 10 together with screws. Place the turntable 10 on the upper plane of the base 9, and screw the transverse fastening screw 29 into the 2mm through hole on the side of the turntable 10 to fix the turntable 10 and the base 9 together with the transverse fastening screw 29.

[0180] 17. Place the angle positioning pin 23 and the scale amplifier 24 sequentially on the upper support surface of the support frame 2. After the hole on the scale amplifier 24 corresponds one-to-one with the through hole on the upper support surface of the support frame 22, fix the angle positioning pin 23 and the scale amplifier 24 on the upper support surface of the support frame 22 by screwing in the screws; install the lower plane of the first support part of the support frame 22 on the lower cylindrical section of the base 9 by screws.

[0181] 18. After the two 2mm diameter through holes of the short shaft of the extension plate 13 correspond to the two 2mm diameter and 5mm depth holes of the front end plane of the support base 11, the extension plate 13 is fixed to the support base 11 with screws.

[0182] 19. Place the rear bracket 18 at the lower end of the support platform 12. When the symmetrical 2mm diameter through holes on both sides of the rear bracket 18 correspond to the 2mm diameter and 5mm depth holes on both sides of the support platform 12, connect one end of the two springs 30 to the screws. By tightening the screws, fix one end of the two springs 30 to the rear bracket 18 and the support platform 12 on both sides respectively.

[0183] 20. Place the connecting plate 15, the front bracket 17 and the connecting frame 19 from top to bottom. When the two 2mm diameter through holes of the connecting plate 15 and the two 2mm diameter through holes at the bottom of the front bracket 17 correspond one-to-one with the 2mm diameter through holes on both sides of the connecting frame 19, fix the connecting plate 15, the front bracket 17 and the connecting frame 19 together by screwing in the fastening screws.

[0184] 21. Screw the two ends of the longitudinal fine-tuning screw 31 into the middle 2mm through hole of the first connecting frame 19 and the upper 2mm through hole of the second connecting frame 20 respectively, and connect the first connecting frame 19 and the second connecting frame 20 together through the longitudinal fine-tuning screw 31; fix the longitudinal fine-tuning screw 32 together with the longitudinal fine-tuning screw 31.

[0185] 22. Place the lifting rod 21 into the positioning lifting slot 14. When the 2mm through hole at one end of the lifting rod 21 aligns with the 2mm through holes on both sides of the connecting frame 20, connect the connecting frame 20 and the lifting rod 21 together by screwing in the screws. When the lifting handrail 33 aligns with the 2mm through hole at the other end of the lifting rod 21, connect the lifting handrail 33 and the lifting rod 21 together by screwing in the screws. Screw the lifting fastening screw 34 into the 2mm through hole on the side of the extension plate 13 to fix the lifting rod 21 onto the extension plate 13.

[0186] 23. After the through hole of the handle 35 aligns with the two holes with a diameter of 2mm and a depth of 5mm on the rear end plane of the support base 11, fix the handle 35 to the support base 11 with screws;

[0187] 24. Connect the other ends of the two springs 30 to the screws and screw the screws into the 2mm through holes on both sides of the front bracket 17; fix the other ends of the two springs 30 to both sides of the front bracket 17 with the screws.

[0188] 25. Place a horizontal bubble 28 at the rear end of the support base 11. When the two through holes on the horizontal bubble 28 correspond one-to-one with the two 2mm diameter holes at the upper end of the rear plane of the support base 11, fix the horizontal bubble 28 on the support base 11 by screwing in the screw.

[0189] 26. Place the upper handle 37 on the upper end of the support base 11. When the through holes at both ends of the upper handle 37 correspond to the 5mm through holes on the upper side of the support base 11, connect the upper handle 37 to the support base 11 by screwing in the screw and bolt.

[0190] 27. Place the rangefinder 38 on top of the connecting plate 15, with the front end of the rangefinder 38 close to the front positioning seat 16;

[0191] When the rangefinder 38 is placed horizontally, the rear end face, the front end plane of the support base 11, the central axis of the turntable 10, and the central axis of the base 9 are all on the same plane.

[0192] The rear end of the rangefinder 38 serves as a reference for measurement and recording. Regardless of how the rangefinder 38 moves up or down, as long as any position (straight line) of the rear end contacts the vertical reference plane (the front plane of the support base 11), the measurement value in the horizontal direction will be equal. This is the most crucial point for the success of the measurement.

[0193] In the manufacturing process of a horizontal hollow truncated cone measuring device, if the hole is drilled, it will not have threads; if the hole is tapped, it will have threads.

Claims

1. An intelligent hollow frustum measuring system, characterized in that, It includes a horizontal hollow truncated cone measuring device (7) and a system control module (8); The horizontal hollow truncated cone measuring device (7) includes a rangefinder (38), a base (9), a turntable (10), a support base (11), an extension plate (13), a lifting fastening screw (34), a connecting plate (15), a support platform (12), a bubble level (36), a leveling screw (26), an angle disc (25), an angle positioning pin (23), and a lifting device. The turntable (10) is rotatably mounted on the base (9), and the angle disc (25) is mounted on the turntable (10). A support base (11) is mounted on the angle disc (25), the angle positioning pin (23) is located above the angle disc (25), the support platform (12) is mounted on the side of the support base (11), and the extension plate (13) is located below the support platform (12), with one end connected to the support base (11). A positioning lifting groove (14) is provided at the end of the extension plate (13) away from the support base (11), and the lifting device can be inserted vertically into the positioning lifting groove (14). The extension plate (13) has a threaded through hole on its side that communicates with the positioning lifting groove (14). The lifting device is fixed by screwing the lifting fastening screw (34) into the threaded through hole on the side of the extension plate (13). The connecting plate (15) is placed above the support platform (12). The upper end of the lifting device is connected to the connecting plate (15). The rangefinder (38) is placed above the connecting plate (15). The rear end face of the rangefinder (38) when it is placed horizontally and the support base (14) are connected to the support platform (12). 1) The front end plane, the central axis of the turntable (10) and the central axis of the base (9) are on the same plane; the bubble level (36) is installed on the support base (11), the cross-section of the base (9) is "convex" shaped, including a coaxial upper cylindrical section and a lower cylindrical section, at least two threaded through holes are opened on the lower cylindrical section, the horizontal adjustment screw (26) is screwed into the threaded through hole on the lower cylindrical section, and the horizontal hollow cone measuring device (7) can be adjusted to a horizontal state by rotating the horizontal adjustment screw (26); The system control module (8) includes a parameter setting module, an information input module, an online measurement module, and a data module, which are used to control and process the input and output of information in the intelligent hollow truncated cone measurement system (6).

2. The intelligent hollow truncated cone measurement system as described in claim 1, characterized in that, The parameter setting module is used to set the theoretical value and tolerance of the hollow truncated cone (1) to be measured; The information input module is used to input the production order number, drawing number, part number and measurement personnel information of the hollow cone frustum (1) to be measured; The online measurement module includes an online module, a measurement information module, a measurement module, a recording module, and a display module; The online module is used to implement the communication connection between the horizontal hollow frustum measuring device (7) and the system control module (8), as well as the communication connection between the parameter setting module, information input module, online measurement module and data module in the system control module; The measurement information module includes measurement position, number of measurement points and measurement point name information; The measurement module is used to send measurement instructions; The recording module is used to record the horizontal distance, height difference and horizontal angle information measured by the horizontal hollow frustum measuring device (7); The display module is used to display the relevant information of a single measurement point; The data module, including a data processing module, a data display module and a result storage module, is used to process, display and store the data measured by the horizontal hollow frustum measuring device (7).

3. The intelligent hollow truncated cone measurement system as described in claim 2, characterized in that, The lifting device includes a connecting frame one (19), a longitudinal fine-tuning screw rod (31), a longitudinal fine-tuning screw (32), a connecting frame two (20) and a lifting rod (21). The connecting frame one (19) is in a "C" shape and is composed of three first horizontal plates and two first vertical plates connected. The two first horizontal plates on both sides of the connecting frame one (19) are connected to the connecting plate (15). A threaded through hole is opened on the middle first horizontal plate of the connecting frame one (19). The connecting frame two (20) is in a "U" shape and is composed of two second vertical plates and a second horizontal plate connected. A threaded through hole is opened on the second horizontal plate of the connecting frame two (20). The longitudinal fine-tuning screw (32) is fixedly connected to the longitudinal fine-tuning screw rod (31). One end of the longitudinal fine-tuning screw rod (31) is screwed into the threaded through hole opened on the middle first horizontal plate of the connecting frame one (19), and the other end is screwed into the threaded through hole opened on the second horizontal plate of the connecting frame two (20). The lifting rod (21) is inserted through the positioning lifting groove (14), and the upper end of the lifting rod (21) is connected to the connecting frame two (20).

4. The intelligent hollow truncated cone measurement system as described in claim 3, characterized in that, It further includes a front support (17) in an "L" shape, which is composed of two third vertical plates and a third horizontal plate connected. Two threaded through holes are opened on the connecting plate (15), the third horizontal plate of the front support (17) and the two first horizontal plates on both sides of the connecting frame one (19). The connecting plate (15), the front support (17) and the connecting frame one (19) are placed in sequence from top to bottom and are fixedly connected by fastening screws.

5. The intelligent hollow truncated cone measurement system as described in claim 4, characterized in that, It also includes a rear bracket (18) and two springs (30). The rear bracket (18) is U-shaped and is composed of two fourth vertical plates and one fourth horizontal plate connected together. The two fourth vertical plates have threaded through holes. The rear bracket (18) is located below the support platform (12). One end of the two springs (30) is fixed to the two third vertical plates of the front bracket (17). The support platform (12) has threaded through holes on both sides. The other end of the two springs (30) is connected to a screw. The two screws are screwed into the two fourth vertical plates of the rear bracket (18) and the threaded through holes on both sides of the support platform (12) in sequence, so as to fix the two springs (30) to the rear bracket (18) and the support platform (12) respectively.

6. The intelligent hollow truncated cone measurement system as described in claim 5, characterized in that, The turntable (10) is a hollow cylinder with a cover at one end. A through hole is provided at the center of the cover of the turntable (10). A through hole is provided at the central axis of the base (9) and the angle disk (25). The through holes on the angle disk (25), the turntable (10) and the base (9) are aligned and connected to each other.

7. The intelligent hollow truncated cone measurement system as described in claim 6, characterized in that, A threaded through hole is provided on the side of the turntable (10). By screwing the transverse fastening screw (29) into the threaded through hole on the side of the turntable (10), the relative position of the turntable (10) and the base (9) can be fixed.

8. A method for measuring a hollow frustum using the intelligent hollow frustum measuring system as described in claim 7, characterized in that, Specifically, the following steps are included: Step 0: Mark the large-mouth measurement points and the small-mouth measurement points. Paint the large opening baseline and the small opening baseline inside the hollow truncated cone (1), and mark a number of large opening measurement points and a number of small opening measurement points on the large opening baseline and the small opening baseline. The number of large opening measurement points and small opening measurement points is more than two. Step 1: Place and adjust the hollow truncated cone (1) and the horizontal hollow truncated cone measuring device (7), and adjust the hollow truncated cone (1) and the horizontal hollow truncated cone measuring device (7) to a horizontal state; Step 2: System connection. Turn on the system control module (8) and the rangefinder (38) and establish a communication connection through the online module. Step 3: Parameter setting and information input. In the parameter setting module, set the theoretical value and tolerance of the hollow cone frustum (1) to be measured. In the information input module, input the production order number, drawing number, part number and measurement personnel information of the hollow cone frustum (1) to be measured. In the measurement information module, select the measurement location, number of measurement points and measurement point name information. Step 4: Measurement and recording. Send measurement instructions to the measurement module. The horizontal hollow truncated cone measuring device (7) measures the hollow truncated cone (1) to obtain horizontal distance, height difference and horizontal angle information. The recording module and display module record and display the measurement data respectively. Step 5: Data processing. The horizontal hollow truncated cone measuring device (7) measures the hollow truncated cone (1) and transmits the data to the data module. The data processing module processes the data to obtain data on radius, roundness, flatness, height difference between the centers of the large and small openings, and concentricity between the centers of the large and small openings. Step 6: Result display. The data display module displays the measurement data, processed data, and the parameters, inputs, and selections set in Step 3, and judges and displays whether the measurement results are qualified. Step 7: Generate and store the report. The results storage module generates and stores the report.

9. The method as described in claim 8, characterized in that, The specific steps of step 1 are as follows: Place the hollow cone (1) on the assembly table (2) through the support block (3), with the large opening (4) of the hollow cone (1) at the bottom and the small opening (5) of the hollow cone (1) at the top, and adjust the hollow cone (1) to a horizontal state through the shims. Place the horizontal hollow truncated cone measuring device (7) on the assembly table (2), then rotate the turntable (10) to check the deviation of the bubble level (36), rotate the level adjustment screw (26) to center the bubble in the bubble level (36), and adjust the horizontal hollow truncated cone measuring device (7) to a horizontal state.

10. The method as described in claim 9, characterized in that, In step 4, the specific steps for the horizontal hollow truncated cone measuring device (7) to measure the hollow truncated cone (1) are as follows: Step 4.1: Measure and record the measurement points on the large opening (4) of the hollow truncated cone. step 4.1.1: Rotate the turntable (10) so that the angle positioning pin (23) and the 0° mark of the angle disk (25) coincide in the vertical direction; select the hollow truncated cone large opening (4) in the measurement position in the measurement information module, and select the number of measurement points and the name of the measurement points; turn on the rangefinder (38); loosen the lifting fastening screw (34); raise or lower the lifting rod (21) so that the laser point emitted by the rangefinder (38) falls near the reference line of the large opening of the hollow truncated cone (1); tighten the lifting fastening screw (34). Loosen the transverse fastening screw (29), rotate the turntable (10), and when the laser point emitted by the rangefinder (38) falls directly above or below the first large-mouth measurement point on the large-mouth baseline, tighten the transverse fastening screw (29); then, rotate the longitudinal fine-tuning screw (32) until the laser point emitted by the rangefinder (38) falls on the first large-mouth measurement point; send a measurement command to the measurement module, and the display module displays the horizontal distance, height difference, and horizontal angle information of the first large-mouth measurement point of the hollow cone (1). Check the relevant information of the first large-mouth measurement point. If the information is accurate, the recording module records the data. Step 4.1.2: Loosen the transverse fastening screw (29), rotate the turntable (10), and when the laser point emitted by the rangefinder (38) falls directly above or below the second large-mouth measurement point on the large-mouth baseline, tighten the transverse fastening screw (29); then, rotate the longitudinal fine-tuning screw (32) until the laser point emitted by the rangefinder (38) falls on the second large-mouth measurement point; send a measurement command to the measurement module, and the display module displays the horizontal distance, height difference, and horizontal angle information of the second large-mouth measurement point of the hollow cone (1), check the relevant information of the second large-mouth measurement point, and if the information is accurate, the recording module records the data; Step 4.1.3: Similarly, following the method in step 4.1.2, measure and record the horizontal distance, height difference, and horizontal angle information of other large-diameter measurement points of the hollow truncated cone (1); Step 4.2: Measure and record the measurement points on the small opening (5) of the hollow frustum of cones. Refer to step 4.1 to measure and record the horizontal distance, height difference, and horizontal angle information of the measurement points on the small opening (5) of the hollow truncated cone.

11. The method as described in claim 10, characterized in that, In step 5, the data processing module performs the following calculations on the measured horizontal distance, height difference, and horizontal angle information: X i =H i cosθ............(1) Y i =H i sinθ............(2) With i =V i ............(3) (X i -X O ) 2 +(Y i -Y O ) 2 +(Z i -Z O ) 2 -R 2 =0............(4) ΔR i =R i -R............(6) x i =h i cosθ............(9) y i =h i sinθ............(10) with i =in i ............(11) (x i -x O ) 2 +(y i -y O ) 2 +(z i -z O ) 2 -r 2 =0............(12) Δr i =r i -r............(14) Δ 高 =|z0-Z O |...........(17) In formulas (1) to (18), X i (i = 1, 2...n) are the measurement points P of the large opening of the hollow frustum. i The measured value in the X direction in the measurement coordinate system, Y i Measurement point P of the large opening of the hollow truncated cone i The measured value in the Y direction in the measurement coordinate system, Z i Measurement point P of the large opening of the hollow truncated cone i The measured value in the Z direction under the measurement coordinate system, H i Measurement point P of the large opening of the hollow truncated cone i V is the horizontal distance relative to the horizontal hollow truncated cone measuring device. i Measurement point P of the large opening of the hollow truncated cone i Relative to the height difference of the rangefinder in the horizontal state of the horizontal hollow truncated cone measuring device, X0 is the coordinate value of the center of the large opening of the hollow truncated cone in the X direction, Y0 is the coordinate value of the center of the large opening of the hollow truncated cone in the Y direction, Z0 is the coordinate value of the center of the large opening of the hollow truncated cone in the Z direction, and R is the radius of the large opening of the hollow truncated cone. i Measurement point P of the large opening of the hollow truncated cone i The distance from the center of the large opening of the hollow truncated cone, ΔR i Measurement point P of the large opening of the hollow truncated cone i The deviation of the distance from the center of the large opening of the hollow truncated cone relative to the radius of the large opening of the hollow truncated cone; ΔR is the roundness of the large opening of the hollow truncated cone; ΔZ is the flatness of the large opening of the hollow truncated cone. x i (i = 1, 2...n) represents the measuring point p at the small opening of the hollow frustum. i The measured value in the X direction under the measurement coordinate system, y i For the small opening measurement point p of the hollow truncated cone i The measured value in the Y direction under the measurement coordinate system, z i For the small opening measurement point p of the hollow truncated cone i The measured value in the Z direction under the measurement coordinate system, h i For the small opening measurement point p of the hollow truncated cone i Relative to the horizontal distance of the horizontal hollow truncated cone measuring device, v i For the small opening measurement point p of the hollow truncated cone i Relative to the height difference of the rangefinder in the horizontal state of the horizontal hollow truncated cone measuring device, x0 is the coordinate value of the center of the small opening of the hollow truncated cone in the x-direction, y0 is the coordinate value of the center of the small opening of the hollow truncated cone in the y-direction, z0 is the coordinate value of the center of the small opening of the hollow truncated cone in the z-direction, and r is the radius of the small opening of the hollow truncated cone. i For the small opening measurement point p of the hollow truncated cone i The distance Δr from the center of the small opening of the hollow frustum of cones i For the small opening measurement point p of the hollow truncated cone i The deviation of the distance from the center of the small opening of the hollow truncated cone relative to the radius of the small opening of the hollow truncated cone; Δr is the roundness of the small opening of the hollow truncated cone; Δz is the flatness of the small opening of the hollow truncated cone. θ is the measurement point P i p i Δ is the angle of rotation relative to the 0° horizontal direction on the angle disk (horizontal angle). 高 Let Δ be the height difference between the center of the large opening and the center of the small opening of the hollow truncated cone. 水 The concentricity of the center of the large opening of the hollow truncated cone and the center of the small opening of the hollow truncated cone.

12. The method as described in claim 11, characterized in that, In step 6, if the calculation result is within the tolerance range, the measurement result is qualified; otherwise, it is unqualified.

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