CN111521115A - MCP glass tube overall dimension non-contact intelligent test system - Google Patents
MCP glass tube overall dimension non-contact intelligent test system Download PDFInfo
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- CN111521115A CN111521115A CN202010425369.2A CN202010425369A CN111521115A CN 111521115 A CN111521115 A CN 111521115A CN 202010425369 A CN202010425369 A CN 202010425369A CN 111521115 A CN111521115 A CN 111521115A
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- glass tube
- tube material
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- glass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
- G01B11/12—Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/2408—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring roundness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B11/272—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes using photoelectric detection means
Abstract
The invention provides a MCP glass tube material overall dimension non-contact intelligent test system which comprises a conveying system, a carrying system, a measuring system and a computer system. The conveying system is used for conveying the glass tube material through the conveying belt. And the conveying system takes off the glass tube materials conveyed by the conveying belt and conveys the glass tube materials to a tube fitting clamp of the measuring system. The measuring system receives the glass tube material, senses the transmitted light beam passing through the glass tube material through the optical detection assembly and outputs an electric signal; and the computer system is in signal connection with the testing system and is used for receiving the electric signals output by the photoelectric sensing receiver, fitting the glass tube material through a three-dimensional reconstruction algorithm and calculating the overall dimension data of the glass tube material. The invention measures the data of the external dimensions such as the internal diameter, the external diameter, the wall thickness, the straightness, the ovality and the like of any position of the glass tube material by a non-contact measurement method, and realizes the automatic grading of products according to requirements.
Description
Technical Field
The invention relates to the technical field of microchannel plates, in particular to a non-contact intelligent testing system for the overall dimension of an MCP glass tube material.
Background
Microchannel plates (MCPs) are a parallel array of millions of microporous electron multipliers, are two-dimensional vacuum electron multipliers of thin sheet construction, are sensitive to electrons, ions, accelerated neutral particles, ultraviolet photons, and X-rays, and are widely used in the fields of image intensifiers, displays, space science, and analytical instruments.
In the conventional preparation process of the microchannel plate, an alkali lead silicate coated glass tube and a core rod matched with the alkali lead silicate coated glass tube are prepared and drawn into a monofilament at high temperature by depending on a glass multi-fiber drawing technology (GMD), and the multichannel array type sheet is manufactured by a series of processes such as screen arrangement, slicing, polishing, corrosion and the like.
At present, a manual inspection method is adopted for the inspection of the MCP glass material, and particularly, the inspection of the cladding glass needs to measure the external dimension data of the inspected material, such as the inner diameter, the outer diameter, the wall thickness, the straightness, the ovality and the like. The caliper is used for manual measurement, so that the quality of a product is out of control due to difference of detection personnel and human errors, the measurement efficiency is extremely low, and only the overall dimension data of the end face can be measured. At present, MCP leather glass is produced by adopting a blowing manufacturing method, the consistency of the external shape and the size is poor, the size data of the whole tested pipe fitting is represented by only manually detected end face data, and the expected performance effect cannot be achieved in the subsequent MCP manufacturing production.
Disclosure of Invention
The invention aims to provide a MCP glass tube material overall dimension non-contact intelligent test system, which comprises a conveying system, a carrying system, a measuring system and a computer system, wherein:
a conveying system arranged to convey the glass tube material by a conveyor belt;
the conveying system is butted with the conveying system and is used for taking down the glass tube materials conveyed by the conveying belt and conveying the glass tube materials to a tube clamp of the measuring system;
the measuring system is provided with a pipe fitting clamp for receiving the glass pipe material, the pipe fitting clamp receives the glass pipe material through two rotatable rollers, and the rollers of the pipe fitting clamp drive the glass pipe material to rotate circumferentially; the pair of pipe fitting clamps are arranged on a two-dimensional electric translation table, the two-dimensional electric translation table can move in the vertical direction and the axial direction of the glass pipe material, and the concentricity and the levelness of the glass pipe material are kept;
the measuring system is also provided with an optical detection assembly perpendicular to the axial direction of the glass tube material, the optical detection assembly comprises a light source emitter positioned on one side of the glass tube material and used for emitting parallel light towards the glass tube material and vertically irradiating the surface of the axial line of the glass tube material, and the optical detection assembly is also correspondingly provided with a photoelectric sensing receiver positioned on the other side of the glass tube material and used for sensing the transmitted light beam passing through the glass tube material and outputting an electric signal;
and the computer system is in signal connection with the testing system and is used for receiving the electric signals output by the photoelectric sensing receiver, fitting the glass tube material through a three-dimensional reconstruction algorithm and calculating the overall dimension data of the glass tube material.
The computer system is further arranged for grading according to the overall dimension data of the glass tube material and marking through a laser marking machine arranged above the glass tube material based on grading.
The measuring system further comprises a one-dimensional electric moving platform, the optical detection assembly is mounted on the one-dimensional electric moving platform, the one-dimensional electric moving platform can move along a guide rail which is arranged in parallel with the axis direction of the glass tube material, and the optical detection assembly is driven to move along the axis direction of the glass tube material so as to realize axial scanning detection of the glass tube material.
The conveying belt is driven by a stepping motor, and a plurality of adjacent tooth-shaped arc grooves are formed in the surface of the conveying belt and used for accommodating the glass tube material.
The carrying system comprises a driving motor, a connecting rod mechanism and an arc-shaped rotating handle, the connecting rod mechanism comprises a first driving rod, a second driving rod and a driven connecting rod hinged with the first driving rod and the second driving rod, the arc-shaped rotating handle is fixed at the tail end of the driven connecting rod, the driving motor is used for driving the first driving rod and the second driving rod to move synchronously, so that the arc-shaped rotating handle is lifted or lowered, the glass tube is received from a conveying belt through the arc-shaped rotating handle, and the glass tube is conveyed to the pipe fitting clamp of the measuring system through the movement of the connecting rod mechanism.
Preferably, the roller is a rubber roller.
According to the technical scheme, the MCP glass tube material overall dimension non-contact intelligent test system can automatically load and unload the MCP glass tube material, measure overall dimension data such as inner diameter, outer diameter, wall thickness, straightness, ellipticity and the like at any position of the glass tube material by a non-contact measurement method, automatically grade products according to requirements, realize comprehensive digital detection and avoid errors caused by manual detection on one hand, realize non-contact rapid detection on the other hand, improve efficiency and prevent pollution and damage to the glass tube material.
The testing system provided by the invention is not influenced by the measurement precision of different refractive indexes at different positions due to the fact that components of a sample tube material are uneven, non-contact measurement is used, the measurement is carried out through a high-precision CCD camera and high-precision laser, the repetition precision of the measuring system is 5 micrometers, when the measurement precision is 0.01mm, the confidence coefficient reaches 99.92%, the detection efficiency can be improved by 10 times to the maximum, namely 1 full-automatic measurement and detection system can replace 8-10 manual detection and detection systems; meanwhile, the scratch in the measuring process can be effectively avoided, and the damage is prevented.
In the manual detection used in the prior art, the quality of the product may be out of control due to the difference of detection personnel and human errors, so that the automatic detection system adopted by the invention standardizes the test process, ensures the complete consistency of the quality of the product, gives a measurement result, can automatically grade the product, and can correspondingly mark and distinguish the product.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of this disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the presently disclosed subject matter.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic diagram of an MCP glass tube frit overall dimension non-contact intelligent test system according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a toothed conveyor belt according to an embodiment of the present invention.
Fig. 3 is a schematic view of a handling system of an embodiment of the invention.
Figure 4 is a schematic view of a pipe clamp of an embodiment of the present invention.
FIG. 5 is a schematic view of a measurement system of an embodiment of the present invention.
Detailed Description
In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any one implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.
The MCP glass tube material overall dimension non-contact intelligent test system shown in the combined drawings of FIGS. 1-5 comprises a conveying system, a carrying system, a measuring system and a computer system, is suitable for entry inspection of the MCP glass material overall dimension, and realizes automation of product detection through system linkage control. When the measurement precision is 0.01mm, the confidence coefficient reaches 99.92 percent, and the measurement efficiency is 10 times that of manual measurement.
The conveying system aims at controlling the movement of the belt conveying, so that the conveying belt can move according to a set fixed step length, and the movement position of the glass pipe fitting to be detected is guaranteed to be fixed every time. Preferably, the conveyor belt is servo-controlled by a stepping motor, so that the precise motion control of a fixed step length is realized, the pipe is conveyed to a position determined in advance, and after the pipe is taken away by the conveying mechanism, the position of the pipe to be conveyed is fixed each time by the conveyor belt which advances for fixing the step length.
Preferably, the conveyer belt is the design of profile of tooth structure, guarantees the fixed position of pipe material on the conveyer belt and the stability of transportation process.
The conveying system is used for completing two movements through the movement of the hinge mechanism of the connecting rod mechanism, wherein one movement is to convey the glass tube materials conveyed in place by the conveying mechanism to the measuring system, and the other movement is to convey the measured glass tubes to different grading areas according to different measuring results to complete final grading. In the grading process, marking may be performed by laser.
Preferably, the hinge mechanism is configured as a link mechanism, and is configured to remove the tube material on the conveyor belt, convey the tube material to a tube clamp of the measuring system, remove the tube material from the testing system after the measurement is completed, and convey the tube material to a placement area of a corresponding gear according to the measurement result.
Preferably, as an exemplary link mechanism, two driving rods pass through, a servo motor provides power for synchronous driving, a driven connecting rod is driven to move up and down, position feedback is provided, an arc-shaped gripper is adopted at the tail end (tail end) of the driven connecting rod, the rotation angle of the gripper can be controlled by the servo motor, and a measured pipe is released.
Preferably, after the pipe fitting to be measured is placed on the pipe material clamp, the measuring system firstly aligns the glass pipe material according to a real-time acquisition picture of the high-precision CCD imaging camera, and the axis of the pipe material is enabled to be horizontal through the pipe material clamp and the two-dimensional electric translation table. The CCD imaging camera is oriented towards the direction of the glass tube material, and real-time imaging is carried out after the glass tube material is transferred to the tube material clamp from the carrying system.
Then, a high-precision laser probe (laser emitter) measures data of axial measuring points (the positions and the number of the axial measuring points can be specified), and at each axial measuring point, a roller of a pipe clamp drives a pipe to rotate circumferentially by a fixed angle for measurement (the rotating angle can be specified). Thus, after the measurement is finished, the pipe material is taken away by the carrying system.
And the computer system fits the whole 3D image of the product through a three-dimensional reconstruction algorithm, automatically calculates the size information of the pipe materials, inputs the information into a database and realizes automatic grading according to requirements.
Exemplary implementations of the foregoing schemes are described in greater detail below in conjunction with fig. 1-5.
The conveying system 1 is provided with a servo motor, in particular a stepping motor, and is used for driving a conveying belt to convey glass tube materials. Referring to fig. 2, the conveyor belt is a toothed conveyor belt, and a plurality of adjacent toothed arc grooves are formed on the surface of the conveyor belt and used for accommodating the glass tube material.
And the conveying system 2 is butted with the conveying system and is used for taking off the glass tube materials conveyed by the conveying belt and conveying the glass tube materials to a tube clamp of the measuring system.
As shown in fig. 3, the carrying system 2 includes a driving motor, a link mechanism and an arc-shaped rotating handle, the link mechanism includes a first driving rod 21, a second driving rod 22 and a driven link 23 hinged to the first driving rod and the second driving rod, the arc-shaped rotating handle 24 is fixed at the end of the driven link, the driving motor is preferably a stepping motor, and is used for driving the first driving rod and the second driving rod to move synchronously so as to lift or lower the arc-shaped rotating handle, so as to receive the glass tube material from the conveyor belt through the arc-shaped rotating handle, and convey the glass tube material to the tube fixture of the measuring system through the movement of the link mechanism.
The measuring system 3 has a tube holder 33 for holding the glass tube, as shown in fig. 4, the tube holder holds the glass tube by two rotatable rollers, and the rollers 33 of the tube holder, especially rubber rollers, drive the glass tube to rotate circumferentially.
A pair of pipe fittings fixtures as shown in fig. 4 are arranged on a two-dimensional electric translation table 32, the two-dimensional electric translation table can move in the vertical direction and the axial direction of the glass tube, the concentricity and the levelness of the glass tube are kept, and the leveling and the aligning of the glass tube are realized.
The measuring system is also provided with an optical detection component perpendicular to the axis direction of the glass tube material, the optical detection component comprises a light source emitter 34 positioned on one side of the glass tube material and used for emitting parallel light towards the glass tube material and vertically irradiating the surface of the axis of the glass tube material, and a photoelectric sensing receiver 35 correspondingly positioned on the other side of the glass tube material and used for sensing the transmitted light beam passing through the glass tube material and outputting an electric signal. And the computer system is in signal connection with the test system and is used for receiving the electric signals output by the photoelectric sensing receiver, fitting the glass tube material through a three-dimensional reconstruction algorithm and calculating the overall dimension data of the glass tube material.
Preferably, the computer system is further configured to grade according to the outside dimension data of the glass tubing and mark based on the grading by the laser marking machine 36 disposed above the glass tubing, as in the previous embodiment.
As shown in fig. 5, the measuring system further includes a one-dimensional electric moving table, the optical detection assembly is mounted on the one-dimensional electric moving table, and the one-dimensional electric moving table can move along a guide rail 31 parallel to the axial direction of the glass tube material to drive the optical detection assembly to move along the axial direction of the glass tube material, so as to implement axial scanning detection on the glass tube material. Preferably, the one-dimensional motorized mobile station is measured with an accuracy of 0.01mm, and is set to be a scanning test point every 0.01mm-0.04 mm.
Therefore, the external dimension data such as the internal diameter, the external diameter, the wall thickness, the straightness, the ovality and the like of any position of the glass tube material can be measured by a non-contact measurement method, and the automatic grading of the product can be realized according to the requirements.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (8)
1. The utility model provides a MCP glass tube material overall dimension non-contact intelligent test system which characterized in that, includes conveying system, handling system, measurement system and computer system, wherein:
a conveying system arranged to convey the glass tube material by a conveyor belt;
the conveying system is butted with the conveying system and is used for taking down the glass tube materials conveyed by the conveying belt and conveying the glass tube materials to a tube clamp of the measuring system;
the measuring system is provided with a pipe fitting clamp for receiving the glass pipe material, the pipe fitting clamp receives the glass pipe material through two rotatable rollers, and the rollers of the pipe fitting clamp drive the glass pipe material to rotate circumferentially; the pair of pipe fitting clamps are arranged on a two-dimensional electric translation table, the two-dimensional electric translation table can move in the vertical direction and the axial direction of the glass pipe material, and the concentricity and the levelness of the glass pipe material are kept;
the measuring system is also provided with an optical detection assembly perpendicular to the axial direction of the glass tube material, the optical detection assembly comprises a light source emitter positioned on one side of the glass tube material and used for emitting parallel light towards the glass tube material and vertically irradiating the surface of the axial line of the glass tube material, and the optical detection assembly is also correspondingly provided with a photoelectric sensing receiver positioned on the other side of the glass tube material and used for sensing the transmitted light beam passing through the glass tube material and outputting an electric signal;
and the computer system is in signal connection with the testing system and is used for receiving the electric signals output by the photoelectric sensing receiver, fitting the glass tube material through a three-dimensional reconstruction algorithm and calculating the overall dimension data of the glass tube material.
2. The MCP glass tube stock outline non-contact intelligent test system of claim 1 wherein the computer system is further configured to rank according to the outline size data of the glass tube stock and mark on a rank basis by a laser marking machine positioned above the glass tube stock.
3. An MCP glass tube blank outline dimension non-contact intelligent test system according to claim 1, wherein the measurement system further comprises a one-dimensional electric moving table, the optical detection assembly is mounted on the one-dimensional electric moving table, the one-dimensional electric moving table can move along a guide rail arranged in parallel with the axis direction of the glass tube blank, and the optical detection assembly is driven to move along the axis direction of the glass tube blank so as to realize axial scanning detection on the glass tube blank.
4. An MCP glass tube blank outline dimension non-contact intelligent test system according to claim 3, wherein the one-dimensional electric moving table is set to scan test points every 0.01mm-0.04 mm.
5. A MCP glass tube blank dimension non-contact intelligent test system according to claim 1 wherein said conveyor is driven by a stepper motor and a plurality of adjacent toothed arcuate grooves are formed in the conveyor surface for receiving said glass tube blank.
6. The MCP glass tube material outline dimension non-contact intelligent test system of claim 1, wherein the handling system comprises a driving motor, a link mechanism and an arc-shaped turning hand, the link mechanism comprises a first driving rod, a second driving rod and a driven link hinged with the first driving rod and the second driving rod, the arc-shaped turning hand is fixed at the tail end of the driven link, and the driving motor is used for driving the first driving rod and the second driving rod to move synchronously so as to lift or lower the arc-shaped turning hand, so that the glass tube material is received from a conveyor belt through the arc-shaped turning hand and is conveyed to a tube clamp of the measurement system through the movement of the link mechanism.
7. An MCP glass tube blank outline dimension non-contact intelligent test system according to claim 1, wherein the rollers are rubber rollers.
8. A MCP glass tube blank outline dimension non-contact intelligent test system according to any one of claims 1 to 7, wherein the measurement system is further provided with a CCD imaging component facing the glass tube blank for imaging the glass tube blank.
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| CN2020103891836 | 2020-05-09 | ||
| CN202010389183 | 2020-05-09 |
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| Publication number | Publication date |
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| CN111521115B (en) | 2021-11-05 |
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