Rotary body profile detection apparatus and method of use thereof

Abstract

The application discloses a rotating body profile detection device and a use scheme thereof. The detection device is provided with a rotating axis, and comprises a placing table, a measuring assembly provided with a first axis inclined relative to the rotating axis, the measuring assembly comprising a measuring head moving in a direction parallel to the first axis, and an angle adjusting assembly for adjusting the included angle between the first axis and the rotating axis. The use method of the rotating body profile detection device comprises the following steps: placing a workpiece; adjusting the inclination angle of the adjusting guide rail and the measuring head; moving the measuring head to a starting position; moving the measuring head close to the workpiece to be detected; moving the measuring head by a set distance to detect the profile of the workpiece to be detected; resetting the measuring head while outputting the profile data; and rotating the workpiece to be detected. The angle adjusting assembly can adjust the inclination angle of the measuring head, so that the measuring head can be adapted to the taper of the workpiece. Compared with manual alignment, the scheme has higher stability and repeatability.

Description

Technical Field

[0001] This invention relates to the field of workpiece inspection equipment technology, and in particular to a rotating body profile inspection device and its usage method. Background Technology

[0002] In the production of glass bottles and jars, the unevenness of the labeling area must be strictly controlled to avoid localized bubbling or wrinkling after the label is affixed.

[0003] Therefore, measuring the concavity and convexity of the profile of a solid of revolution is very important. Currently, the methods for measuring the concavity and convexity of solids of revolution mainly rely on coordinate measuring machines or laser scanning equipment, but these methods have the following limitations: 1. Poor adaptability of transparent / high reflective materials: Laser scanning is easily affected by light penetration interference, resulting in data distortion.

[0004] 2. Low measurement accuracy of conical products: Traditional contact probes require manual adjustment of the normal direction, have cosine error, and cannot guarantee that the probe trajectory is parallel to the contour line of the object being measured.

[0005] 3. Insufficient automation: Existing methods, such as the tilting platform method, require manual angle adjustment, which is inefficient and cannot meet the needs of rapid testing in the workshop.

[0006] 4. Manual measurement requires the use of feeler gauges for passability testing, which is cumbersome and prone to errors. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a rotating body contour detection device and its usage method to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0008] The solution to the technical problem of this invention is: A rotating body profile detection device, comprising a rotation axis, and the rotating body profile detection device includes: A placement platform for placing a rotating body; the placement platform is rotatable about a rotation axis parallel to the vertical direction. The measuring component includes a first axis that is inclined relative to the rotation axis. The measuring component is tiltable relative to the placement stage to adjust the angle between the first axis and the rotation axis. The measuring component includes a measuring head for acquiring contour data. The measuring head moves in a direction parallel to the first axis to detect the contour of the rotating body. An angle adjustment component is provided to adjust the tilt angle of the measuring component to adjust the angle between the first axis and the rotation axis.

[0009] As a further improvement to the above technical solution, the measurement component further includes: An adjusting guide rail extends in a direction parallel to the first axis, and the measuring head is slidably connected to the adjusting guide rail; A measurement drive structure is provided, which is connected to the measurement head, and drives the measurement head to move relative to the adjustment guide rail in a direction parallel to the first axis.

[0010] As a further improvement to the above technical solution, the adjusting guide rail is provided with a hinge point in the middle, and the adjusting guide rail can rotate around the hinge point; the output end of the angle adjustment component is connected to the end of the adjusting guide rail, and the angle adjustment component drives the adjusting guide rail to rotate around the hinge point.

[0011] As a further improvement to the above technical solution, the angle adjustment component includes: Linear drive device; A drive link, one end of which is fixed to the output end of the linear drive device, and the other end of which is hinged to the end of the adjusting guide rail.

[0012] As a further improvement to the above technical solution, a pressing and fixing component is also included, which is used to cooperate with the placement platform to clamp and fix the rotating body.

[0013] As a further improvement to the above technical solution, the pressing and fixing component includes: Press down the fixing bracket; A pressure head is provided, which is positioned above the placement platform. The pressure head is slidably connected to the pressure frame, and the pressure head can move closer to or further away from the placement platform relative to the pressure frame. A pressure elastic element is disposed between the pressure fixing frame and the pressure fixing head, and the pressure elastic element is used to make the pressure fixing head always tend to move closer to the placement platform.

[0014] As a further improvement to the above technical solution, the lower end face of the pressing and fixing head is a conical surface.

[0015] As a further improvement to the above technical solution, the pressing elastic element is configured as a columnar spring, and the two ends of the pressing elastic element abut against the pressing fixing frame and the pressing fixing head, respectively.

[0016] As a further improvement to the above technical solution, it also includes a proximity drive component, which drives the measuring component to move closer to or away from the rotation axis.

[0017] The method of using the rotating body profile detection device includes the following steps: Place the workpiece to be tested on the placement table; Adjust the tilt angle of the guide rail and measuring head to make the guide rail parallel to the surface of the workpiece to be inspected; Move the measuring head to the starting position; Bring the measuring head close to the workpiece to be measured; The measuring head is moved a set distance to perform contour detection on the workpiece. The measuring head resets and simultaneously outputs contour data; Rotate the workpiece to be tested; Repeat the above steps of bringing the measuring head close to the workpiece, moving the measuring head, and resetting the measuring head, and output all contour data.

[0018] The beneficial effects of this invention are: the angle adjustment component of this solution can adjust the tilt angle of the measuring head and make the measuring head move along the first axis so that the measuring head can adapt to the taper of the rotating body, thereby obtaining the contour data of the rotating body. Compared with manual alignment, this solution has higher stability and repeatability.

[0019] This invention relates to the field of workpiece inspection device technology. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of the present invention, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a flowchart of the usage method according to an embodiment of the present invention.

[0022] In the diagram, 100 is the placement platform; 200 is the measuring component; 210 is the measuring head; 220 is the adjusting guide rail; 300 is the angle adjustment component; 310 is the linear drive device; 320 is the drive linkage; 500 is the pressure fixing component; 510 is the pressure fixing frame; 520 is the pressure fixing head; and 530 is the pressure elastic element. Detailed Implementation

[0023] The following will clearly and completely describe the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Furthermore, all connections / linkages mentioned herein do not simply refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0024] Reference Figure 1 and Figure 2 A rotating body contour detection device includes: a frame (not shown in the figure), a placement stage 100, a measuring component 200, an angle adjustment component 300, a proximity drive component, and a pressing and fixing component 500.

[0025] The rotating body profile detection device is equipped with a rotation axis.

[0026] The placement stage 100 is mounted on the frame, with its center resting on the rotation axis, and the measuring moving frame can rotate around the rotation axis. A rotary platform is provided between the placement stage 100 and the frame. The rotary platform is driven by a servo motor and integrates a high-precision angle sensor (resolution ≤0.1°).

[0027] The frame is equipped with a measuring moving frame (not shown in the figure), which is movably connected to the frame and can move closer to or further away from the axis of rotation relative to the frame.

[0028] A proximity drive assembly (not shown in the figure) is mounted on the frame. The proximity drive assembly is configured as an electric linear drive structure. Specifically, the proximity drive assembly can be a rotatable screw-type linear drive structure or a belt-type linear drive structure. Those skilled in the art can choose the specific structure of the proximity drive assembly according to actual needs. The output end of the proximity drive assembly is connected to the measuring moving frame, and the proximity drive assembly drives the measuring moving frame to move closer to or away from the axis of rotation.

[0029] The measuring assembly 200 is mounted on the measuring moving frame. The measuring assembly 200 includes: a measuring head 210, an adjusting guide rail 220, and a measuring drive structure (the measuring drive structure is not shown in the figure).

[0030] The measuring component 200 is provided with a first axis, and the angle between the first axis and the rotation axis is adjustable.

[0031] The adjusting guide rail 220 is mounted on the measuring moving frame, and the first axis is arranged parallel to the length direction of the adjusting guide rail 220. A hinge point is provided in the middle of the adjusting guide rail 220. The adjusting guide rail 220 can rotate relative to the measuring moving frame around the hinge point to adjust the angle between the adjusting guide rail 220 and the rotation axis, thereby adjusting the angle between the first axis and the rotation axis.

[0032] The measuring head 210 is used to acquire contour data of the rotating body. The measuring head 210 includes a contact ruby ​​probe or a non-contact spectral confocal sensor. The measuring head 210 is mounted on the adjusting guide rail 220 and is slidably connected to the adjusting guide rail 220. The measuring head 210 can move relative to the adjusting guide rail 220 in a direction parallel to the first axis, so that the measuring head 210 can measure the contour of the outer peripheral surface of the rotating body.

[0033] The measurement drive structure is fixedly installed on the adjustment guide rail 220, and the measuring head 210 is fixedly installed on the output end of the measurement drive structure. The measurement drive structure drives the measuring head 210 to move relative to the adjustment guide rail 220 in a direction parallel to the first axis.

[0034] Specifically, in this embodiment, the measurement drive structure is set as a combination of a rotary motor, a lead screw, and a lead screw seat. The measuring head 210 is fixedly installed on the lead screw seat. The rotary motor drives the lead screw to rotate, thereby driving the lead screw seat, which is threadedly connected to the lead screw, to move, so as to drive the measuring head 210 to move.

[0035] In other embodiments, the measurement drive structure may also be configured as a synchronous belt drive structure. Those skilled in the art can select the specific construction of the measurement drive structure according to actual needs.

[0036] The angle adjustment component 300 is used to drive the end of the adjustment guide rail 220, so that the adjustment guide rail 220 moves around the hinge point to adjust the angle between the first axis and the rotation axis.

[0037] Specifically, the angle adjustment components include: a linear drive device 310 and a drive linkage 320.

[0038] The driving direction of the linear drive device 310 is towards or away from the axis of rotation. The linear drive device 310 is configured as an electric telescopic motor. In other embodiments, the linear drive device 310 can also be configured as a pneumatic linear drive structure or other conventional linear drive structures. Those skilled in the art can select the specific structure of the linear drive device 310 according to actual needs.

[0039] The drive link 320 is disposed between the adjusting guide rail 220 and the linear drive device 310. The two ends of the drive link 320 abut against the output end of the linear drive device 310 and the lower end of the adjusting guide rail 220, respectively. When the output end of the linear drive device 310 moves closer to the rotation axis, the drive link 320 will drive the lower end of the adjusting guide rail 220 to move closer to the rotation axis, so that the adjusting guide rail 220 rotates around the hinge point.

[0040] The pressing and fixing assembly 500 is used to cooperate with the placement stage 100 to clamp and fix the rotating body.

[0041] Specifically, the pressing and fixing assembly 500 includes: a pressing and fixing bracket 510, a pressing and fixing head 520, and a pressing elastic element 530.

[0042] The pressure fixing bracket 510 is fixedly connected to the frame.

[0043] The pressing and fixing head 520 is positioned above the placement platform 100. The pressing and fixing head 520 is slidably connected to the pressing and fixing bracket 510 in the vertical direction, allowing the pressing and fixing head 520 to move closer to or further away from the placement platform 100. Specifically, the lower end face of the pressing and fixing head 520 is a conical surface, with the pointed end of the lower end facing the placement platform 100. Setting the lower end of the pressing and fixing head 520 as a conical surface structure can guide the bottle mouth of the rotating body, allowing the rotating body to move to a certain extent, thereby achieving centering of the rotating body.

[0044] A pressing elastic element 530 is disposed between the pressing fixed head 520 and the pressing fixed frame 510. The pressing elastic element 530 ensures that the pressing fixed head 520 always tends to move closer to the placement platform 100. Specifically, in this embodiment, the pressing elastic element 530 is a columnar spring, with its two ends abutting against the pressing fixed frame 510 and the pressing fixed head 520, respectively. In other embodiments, the pressing elastic element 530 can also be a spring sheet or other conventional elastic structures. Those skilled in the art can select the specific structure of the pressing elastic element 530 according to actual needs.

[0045] This rotating body contour measuring device includes a control system and an operation panel. The control system is based on a PLC or embedded processor, integrates a path planning algorithm, automatically calculates the cone's half-cone angle, and controls the trajectory of the measuring head 210.

[0046] The method of using the rotating body profile detection device includes the following steps: S100. Place the workpiece to be tested on the placement stage 100; S110, Press down the fixed pressure head 520 to press the upper end of the workpiece to be tested; S200: The operator inputs the starting height, measurement distance, tilt angle, and number of circumferential measurements. Step S200 can be set before step S100. S300, the angle adjustment component 300 drives the adjustment guide rail 220 to adjust the tilt angle of the adjustment guide rail 220 and the measuring head 210, so that the adjustment guide rail 220 is parallel to the surface of the workpiece to be inspected; S400, the measuring head 210 moves along the adjusting guide rail 220 to the starting position (at the starting position, the measuring end of the measuring head 210 has a certain distance from the surface of the workpiece to be measured). S500, the proximity drive assembly operates, bringing the measuring head 210 close to the workpiece to be measured; S600, the measuring drive structure drives the measuring head 210 to move along the adjusting guide rail 220 to the measuring distance, so as to perform contour detection on the workpiece to be measured; S700, the measurement drive structure works, causing the measuring head 210 to return to the starting position and work close to the drive assembly, causing the measuring head 210 to move away from the workpiece to be measured, while simultaneously outputting contour data; S800, the placement stage 100 rotates, causing the workpiece to be measured to rotate to the next measurement position and be directly opposite the measuring head 210; S900, Repeat steps S500-S700 to output all contour data.

[0047] Taking the testing of a glass bottle with a cone angle of 30° as an example: 1. The worker places the workpiece on the placement platform 100, and then enters the parameter of half cone angle 15° on the operation panel, and enters the number of circumferential direction measurements 8.

[0048] 2. The control system automatically calculates the tilt angle, and the angle adjustment component 300 drives the measuring component 200 to adjust the angle between the first axis of the measuring component 200 and the rotation axis to 15° to match the taper of the workpiece being measured.

[0049] 3. The measuring head 210 moves along the adjusting guide rail 220, and the numerical value is output and displayed in real time.

[0050] 4. The control system automatically outputs the profile value (e.g., 0.12mm) and stores it in memory. An alarm is triggered when the profile value exceeds the tolerance.

[0051] 5. The measuring head 210 stops outputting data and returns to the starting point along the adjusting guide rail 220.

[0052] 6. The rotating platform drives the placement stage 100 and the glass bottle placed on the placement stage 100 to rotate 45° (360° / 8 times = 45° of circumference), and the probe repeats steps 3-5 to perform the measurement.

[0053] 7. Measurement complete. Eight contour data points are output to the control panel's interactive interface and recorded in memory.

[0054] This solution can achieve the following: High precision: normal alignment error ≤0.01mm, suitable for complex materials such as transparent glass bottles.

[0055] High efficiency and automation: single detection time ≤ 10 seconds, improving efficiency by 80% compared to manual adjustment.

[0056] High adaptability: It can be matched with workpieces of different cone angles (range 1°-60°) by adjusting parameters.

[0057] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A rotating body profile detection device, characterized in that: The rotating body contour detection device includes a rotation axis and comprises: A placement platform for placing a rotating body; the placement platform is rotatable about a rotation axis parallel to the vertical direction. The measuring component includes a first axis that is inclined relative to the rotation axis. The measuring component is tiltable relative to the placement platform to adjust the angle between the first axis and the rotation axis. The measuring component includes a measuring head for acquiring contour data. The measuring head moves in a direction parallel to the first axis to detect the contour of the rotating body. An angle adjustment component is provided to adjust the tilt angle of the measuring component to adjust the angle between the first axis and the rotation axis.

2. The rotating body contour detection device according to claim 1, characterized in that: The measurement component also includes: An adjusting guide rail extends in a direction parallel to the first axis, and the measuring head is slidably connected to the adjusting guide rail; A measurement drive structure is provided, which is connected to the measurement head, and drives the measurement head to move relative to the adjustment guide rail in a direction parallel to the first axis.

3. The rotating body contour detection device according to claim 2, characterized in that: The adjusting guide rail has a hinge point in the middle, and the adjusting guide rail can rotate around the hinge point; the output end of the angle adjustment component is connected to the end of the adjusting guide rail, and the angle adjustment component drives the adjusting guide rail to rotate around the hinge point.

4. The rotating body contour detection device according to claim 2, characterized in that: The angle adjustment component includes: Linear drive device; A drive link, one end of which is fixed to the output end of the linear drive device, and the other end of which is hinged to the end of the adjusting guide rail.

5. The rotating body contour detection device according to claim 1, characterized in that: It also includes a pressing and fixing component, which is used to cooperate with the placement platform to clamp and fix the rotating body.

6. The rotating body contour detection device according to claim 5, characterized in that: The pressing and fixing assembly includes: Press down the fixing bracket; A pressure head is provided, which is positioned above the placement platform. The pressure head is slidably connected to the pressure frame, and the pressure head can move closer to or further away from the placement platform relative to the pressure frame. A pressure elastic element is disposed between the pressure fixing frame and the pressure fixing head, and the pressure elastic element is used to make the pressure fixing head always tend to move closer to the placement platform.

7. The rotating body contour detection device according to claim 6, characterized in that: The lower end face of the pressing head is a conical surface.

8. The rotating body contour detection device according to claim 6, characterized in that: The pressing elastic element is configured as a columnar spring, and its two ends abut against the pressing fixing frame and the pressing fixing head, respectively.

9. The rotating body contour detection device according to claim 1, characterized in that: It also includes a proximity drive assembly that drives the measuring assembly to move closer to or away from the rotation axis.

10. A method for using a rotating body contour detection device, characterized in that: Includes the following steps: Place the workpiece to be tested on the placement table; Adjust the tilt angle of the guide rail and measuring head to make the guide rail parallel to the surface of the workpiece to be inspected; Move the measuring head to the starting position; Bring the measuring head close to the workpiece to be measured; The measuring head is moved a set distance to perform contour detection on the workpiece. The measuring head resets and simultaneously outputs contour data; Rotate the workpiece to be tested; Repeat the above steps of bringing the measuring head close to the workpiece, moving the measuring head, and resetting the measuring head, and output all contour data.

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