CN212109914U - High-precision arc edge diamond cutter cutting edge profile optical measurement device - Google Patents
High-precision arc edge diamond cutter cutting edge profile optical measurement device Download PDFInfo
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- CN212109914U CN212109914U CN202021142499.7U CN202021142499U CN212109914U CN 212109914 U CN212109914 U CN 212109914U CN 202021142499 U CN202021142499 U CN 202021142499U CN 212109914 U CN212109914 U CN 212109914U
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Abstract
The utility model discloses a high accuracy circular arc sword diamond tool blade profile optical measurement device, the device include base, the thick aligning platform of two-dimentional, accurate gyration shafting, fine setting center gyration tool setting mechanism, optical measurement and image acquisition system and display terminal. The two-dimensional coarse aligning platform is used for realizing the rapid alignment of the tool nose of the diamond tool and the center of the field of view of the optical objective; the fine centering rotary tool setting mechanism and the precision rotary shaft system are matched to drive the tool to do precision rotary motion, so that the continuous measurement of the full cutting edge of the diamond tool under one-time centering is ensured; the XY-direction two-dimensional differential feed mechanism of the two-dimensional coarse centering platform and the fine centering rotary tool setting mechanism can be matched to quickly and accurately capture the circular arc profile of the tool in an optical objective with high magnification and small visual field, so that the high-precision positioning of the tool is realized. The utility model discloses can be fast, convenient carry out the full sword mouth profile continuous measurement of circular arc sword diamond cutter, avoid repeated aligning to introduce the error, positioning accuracy is high, has wide application prospect.
Description
Technical Field
The utility model belongs to optics precision measurement field, concretely relates to high accuracy circular arc sword diamond tool blade profile optical measurement device.
Background
The diamond cutter has important application in the ultraprecise cutting processing of core parts in the fields of aerospace, astronomy, nuclear technology, information, traffic and the like. A large number of theoretical and experimental researches show that the quality of the arc profile of the cutting edge of the diamond cutter, including the arc profile degree of the tool nose, the arc waviness, the micro-gap of the cutting edge and the like, are important factors influencing the processing quality of workpieces. Therefore, the accurate measurement of the quality of the full-edge arc profile of the diamond tool is of great importance to the quality of the workpiece to be controlled.
At present, the quality measurement of the arc profile of the cutting edge of the diamond cutter mainly comprises the following methods: atomic Force Microscopy (AFM) measurement, Scanning Electron Microscopy (SEM) measurement, and optical microscopy measurement. In the atomic force microscope measuring method, a probe is in direct contact with the surface of a measured object, and three-dimensional information including a height value is measured through probe feedback, so that the method has a small single-measurement area, is complex and tedious to operate and has high measurement difficulty; the scanning electron microscope measurement method uses high-energy electrons to bombard the surface of a sample, excites secondary electrons, and obtains the surface appearance of the sample through the feedback of the excited secondary electrons, and the method also has the problems of small measurement area, complex operation and the like; the optical microscopy measurement method adopts the optical amplification principle to realize efficient and simple micron-scale precision measurement, and is always the first option of 'rough' measurement (relative to AFM and SEM) and qualitative analysis of the arc profile of the cutting edge of the diamond cutter.
The existing optical microscope measuring system is often provided with a plurality of objective lenses with different parameters to meet different measuring requirements, and in the optical microscope measuring process of the diamond cutter, only a small section area in the circular arc of the diamond cutter can be measured by single measurement due to the limitation of the resolution, the multiplying power and the imaging quality of the optical lenses. The full cutting edge measurement can be performed only by once adjusting the X, Y direction of the two-dimensional feeding mechanism at the same time after measuring a section of the circular arc of the cutter each time, and performing circular interpolation until the full cutting edge measurement is completed. However, under a high-power objective lens, the target area of the tool in the original field of view is very easy to lose by the measuring method, and once the target area is lost, the target area is difficult to retrieve, and at the moment, the tool has to be set again, the two-dimensional feeding mechanism is reset, and the measurement is carried out again. The measurement mode not only leads to repeated resetting and positioning error of the circle center of the arc caused by cutter resetting, but also has the difficult problem of splicing multiple sections of images. The patent with application number 201210508949.3 discloses a manual adjustment platform of a cutter optical measurement system, which is loaded with a CCD camera and has simple structure; patent No. 201310345958.X discloses a tool shape measuring device, which is mainly used for realizing automatic measurement of a tool and avoiding the influence of jitter and other human factors in manual measurement. However, the measuring devices of the two patents are mainly used for measuring the profiles of common turning tools and milling cutters in real time, the optical systems of the measuring devices are low in resolution, the measuring devices cannot be used for high-precision measurement of diamond cutters in the field of ultra-precision machining, and the full-edge continuous measurement of the cutters cannot be realized.
In summary, there is a need for a device that is easy and convenient to operate and can satisfy the requirement of continuous measurement of the full-cutting-edge profile of a circular-arc-edge diamond tool.
Disclosure of Invention
In view of this, the utility model provides an easy operation simply can satisfy the full sword mouth profile continuous measurement's of circular arc sword diamond cutter simultaneously optical measurement device again.
To achieve the purpose, the utility model adopts the following technical proposal: the utility model provides a high accuracy circular arc sword diamond tool blade profile optical measurement device which characterized in that: the device comprises a base, a two-dimensional coarse aligning platform, a precise rotary shaft system, a fine-aligning rotary tool setting mechanism, an optical measurement and image acquisition system, a display terminal and a base support; the base is fixedly connected with the base bracket; the two-dimensional coarse aligning platform bottom plate is fixedly connected to the base; the precise rotation shaft system is fixedly connected to the center position of the two-dimensional coarse aligning platform; the fine adjustment center rotary tool setting mechanism is fixedly connected to the upper surface of the precision rotary shaft system through bolts and nuts; the optical measurement and image acquisition system is connected to the base bracket through a vertical sliding rail and is arranged right above the fine center rotary tool setting mechanism; the display terminal and the optical measurement and image acquisition system are connected through a data transmission line.
Preferably, the base and the base support are integrally formed and are L-shaped
Preferably, the fine tuning center rotary tool setting mechanism comprises a rotary supporting component, a fine tuning center component and a mounting component, the rotary supporting component is directly connected with the precise rotary shaft system, and the fine tuning center component and the mounting component are arranged above the rotary supporting component.
Preferably, the rotary support assembly comprises a semicircular disc, a transition plate, a chute bolt and a nut; the semicircular disc is embedded into a groove on the surface of the precision rotary shaft system through a sliding groove bolt sleeve nut, and the transition plate is fixed on the semicircular disc.
Preferably, the mounting assembly comprises a mounting seat and a chute locking tool apron; the mounting seat is fixed on the transition plate through a connecting screw, and the chute locking tool apron is fixed on the upper surface of the mounting seat.
Preferably, the fine centering assembly comprises an XY-direction two-dimensional differential feeding mechanism and two spring pieces; a shell of the XY-direction two-dimensional differential feeding mechanism is fixed on the upper surface of the mounting seat through a connecting screw, and one end of an X, Y-direction adjusting component of the XY-direction two-dimensional differential feeding mechanism is respectively propped against two adjacent side surfaces of the chute locking tool apron; one ends of the two spring pieces are respectively propped against the other two side surfaces of the sliding groove locking tool apron, and the other ends of the two spring pieces are respectively fixed on the two side surfaces of the mounting seat through connecting screws.
Preferably, the movement range of the two-dimensional coarse aligning platform is 100mm multiplied by 100 mm.
Preferably, the lens resolution of the optical measurement and image acquisition system is less than or equal to 0.32 μm.
Preferably, the radial circular runout of the precise rotary shaft system is less than or equal to 100 mu m, and the end runout is less than or equal to 100 mu m.
Preferably, the motion error of the two-dimensional differential feed mechanism is 1 μm + (L/50) μm, and L is the moving distance of the two-dimensional differential feed mechanism.
The utility model has the advantages that: 1. the tool is driven to do precise rotary motion by the aid of the precise rotary shaft system and the fine-centering rotary tool setting mechanism, and the continuous measurement of the full-cutting-edge arc profile of the arc-edge diamond tool can be realized only by carrying out tool setting centering once, so that the difficult problems that complicated resetting remeasurement and image splicing are required to be carried out if full-cutting-edge measurement is carried out in the prior art are solved, the operation is simple and convenient, and the arc circle center positioning error caused by repeated resetting remeasurement is avoided, so that the measurement precision is improved; 2. the two-dimensional differential feed device of the two-dimensional coarse centering platform and the fine centering rotary tool setting mechanism can be used for quickly and accurately capturing the circular arc profile of the tool in a high-magnification small-field-of-view optical system, so that the measurement efficiency is improved; 3. the observation precision can be ensured by adopting the high-resolution optical measurement and the lens of the image acquisition system.
Drawings
FIG. 1 is a schematic structural view of the optical measuring device for the cutting edge profile of the high-precision arc-edge diamond tool of the present invention;
FIG. 2 is a front view of a fine center rotary tool setting mechanism;
FIG. 3 is a top view of a fine center rotary tool setting mechanism;
FIG. 4 is a view of a structure of a slide slot lock tool apron;
FIG. 5 is a view of the mount structure;
FIG. 6 is a block diagram of a transition plate;
in the figure: 1. the device comprises a base 2, a two-dimensional coarse aligning platform 3, a precise rotating shaft system 4, a fine aligning rotary tool setting mechanism 5, an optical measurement and image acquisition system 6, a display terminal 7, a base support 4-1, an XY direction two-dimensional differential feeding mechanism 4-2, a sliding groove locking tool apron 4-3, a mounting seat 4-4, a transition plate 4-5, a semicircular disc 4-6, a short spring piece 4-7, a long spring piece 4-9, a sliding groove bolt 4-10, a nut 4-11 and a connecting screw.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the optical measuring device for the cutting edge profile of the circular-arc-edge diamond cutter of the present invention comprises a base 1, a two-dimensional coarse centering platform 2, a precise rotation axis system 3, a fine centering rotation tool setting mechanism 4, an optical measurement and image acquisition system 5, a display terminal 6 and a base support 7; the base 1 and the base bracket 7 are integrally formed and are L-shaped; a base plate of the two-dimensional coarse centering platform 2 is fixedly connected to the base 1; the precise rotary shaft system 3 is arranged at the central position of the two-dimensional coarse aligning platform 2 and fixedly connected with the two-dimensional coarse aligning platform; the fine adjustment center rotary tool setting mechanism 4 is embedded in a groove on the upper surface of the precision rotary shaft system 3 through a bolt sleeve nut to be fixed; the optical measurement and image acquisition system 5 is connected to the base bracket 7 through a vertical sliding rail and is arranged right above the fine center rotary tool setting mechanism 4; the display terminal 6 and the optical measurement and image acquisition system 5 are connected through a data transmission line.
The motion range of the two-dimensional coarse centering platform 2 is 100mm multiplied by 100 mm; the resolution of the lens of the optical measurement and image acquisition system 5 is less than or equal to 0.32 μm, and the height of the resolution of the lens determines the observation precision of the measurement device; the radial circular runout of the precise rotary shaft system 3 is less than or equal to 100 mu m, the end runout is less than or equal to 100 mu m, and the radial circular runout parameter influences the positioning precision of the circular arc center of the cutter during the rotation measurement of the cutter.
The precision rotary shaft system 3 and the fine centering rotary tool setting mechanism 4 are core components of the utility model, the precision rotary shaft system 3 drives the diamond tool to rotate, and the fine centering rotary tool setting mechanism is matched with the diamond tool to realize the continuous measurement of the full cutting edge of the tool; the two-dimensional coarse centering platform and the two-dimensional differential feeding device are matched for use, so that the circular arc profile of the cutter can be quickly and accurately positioned in an optical system with high magnification and a small visual field.
As shown in fig. 2 and 3, the fine center rotary tool setting mechanism is composed of a rotary supporting component, a fine center component and a mounting component.
The rotary supporting component comprises a semicircular disc 4-5, a transition plate 4-4, a sliding groove bolt 4-9 and a nut 4-10, the semicircular disc 4-5 is sleeved with the nut 4-10 through the sliding groove bolt 4-9 to be embedded into a groove on the surface of the precision rotary shafting 3, and the transition plate 4-4 is fixed on the semicircular disc 4-5 through a connecting screw 4-11;
the mounting assembly comprises a mounting seat 4-3 and a chute locking tool apron 4-2, the mounting seat 4-3 is fixed on the transition plate 4-4 through a connecting screw 4-11, and the chute locking tool apron 4-2 is used for mounting the upper surface of the mounting seat 4-3 through the connecting screw 4-11;
the fine centering component comprises an XY-direction two-dimensional differential feeding mechanism 4-1 and two spring pieces, and the spring pieces in the figures 2 and 3 are respectively provided with a long spring piece 4-7 and a short spring piece 4-6 according to the distance between two side surfaces of the installation spring piece of the installation seat 4-3 and the corresponding side surface of the chute lock tool apron 4-2; the shell of the XY direction two-dimensional differential feed mechanism 4-1 is fixed on the mounting seat 4-3 through a connecting screw, one end of an X-direction adjusting part and one end of a Y-direction adjusting part of the two-dimensional differential feeding mechanism 4-1 are respectively propped against two adjacent side surfaces of the chute locking tool apron 4-2, one end of a long spring piece 4-7 and one end of a short spring piece 4-6 are respectively fixed on two side surfaces of the mounting seat 4-3 through connecting screws, and the other ends of the long spring piece 4-7 and the short spring piece 4-6 are respectively propped against the other two adjacent side surfaces of the sliding groove locking tool apron 4-2, matched with a two-dimensional differential feeding mechanism 4-1, tightly pushes a chute to lock a tool apron 4-2, when the two-dimensional differential feed mechanism 4-1 reversely returns, the rebound support is provided for the sliding groove locking tool apron 4-2.
The motion error of the two-dimensional differential feed mechanism 4-1 is 1 μm + (L/50) μm, L is the moving distance of the two-dimensional differential feed mechanism, and the parameter determines the positioning precision of the center before the measurement of the cutter.
The specific working flow of the arc edge diamond cutter cutting edge profile optical device is as follows: firstly, fixedly mounting a diamond cutter to be measured on a sliding groove locking cutter holder 4-2, adjusting, determining that a precise rotary shaft system passes through the arc center of the cutter, and then clamping the cutter; and then starting the optical measurement and image acquisition system 5, selecting a low power objective lens (multiplied by 10), respectively adjusting the X direction and the Y direction of the two-dimensional coarse aligning platform 2 according to the image observed by an eyepiece of the optical measurement and image acquisition system 5, enabling the arc profile of the cutting edge of the diamond cutter to enter the field range of the optical microscope, and stopping adjusting the two-dimensional coarse aligning platform 2 and locking when the tool tip of the diamond cutter is close to the center of the field of the optical microscope. Secondly, properly adjusting the tiny feed amounts of the two-dimensional differential feed mechanism 4-1 in the X direction and the Y direction according to a real-time feedback image of the display terminal 6 to enable the tool nose to be positioned at the center of a visual field, then sequentially replacing an objective lens with higher magnification, and adjusting the corresponding object distance and the feed amounts of the two-dimensional differential feed mechanism 4-1 in the X direction and the Y direction to enable the tool nose to be always positioned at the center of the visual field of the optical objective lens (note that the two-dimensional coarse centering platform 2 cannot be adjusted at the moment), so that a complete and clear image of the tool nose under high magnification (X100) can be obtained; and finally, driving the precision rotary table 3 to drive the cutter to do rotary motion, so that the measurement of parameters such as the full-cutting-edge arc profile degree, the waviness, the tipping and the cutting edge micro-gap of the diamond cutter can be realized.
It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention, and it is to be understood that the scope of the invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on the teachings of the present invention without departing from the spirit of the invention, and such modifications and combinations are still within the scope of the invention.
Claims (10)
1. The utility model provides a high accuracy circular arc sword diamond tool blade profile optical measurement device which characterized in that: the device comprises a base (1), a two-dimensional coarse aligning platform (2), a precise rotary shaft system (3), a fine aligning rotary tool setting mechanism (4), an optical measurement and image acquisition system (5), a display terminal (6) and a base support (7); the base (1) is fixedly connected with a base bracket (7); the two-dimensional coarse aligning platform (2) is fixedly connected to the base (1); the precise rotary shaft system (3) is fixedly connected to the central position of the two-dimensional coarse aligning platform (2); the fine adjustment center rotary tool setting mechanism (4) is fixedly connected to the upper surface of the precision rotary shaft system (3) through bolts and nuts; the optical measurement and image acquisition system (5) is connected to the base bracket (7) through a vertical sliding rail and is arranged right above the micro-aligning rotary tool setting mechanism (4); the display terminal (6) and the optical measurement and image acquisition system (5) are connected through a data transmission line.
2. The optical measuring device for the cutting edge profile of the high-precision circular-arc-edge diamond cutter according to claim 1, is characterized in that: the base (1) and the base support (7) are integrally formed and are L-shaped.
3. The optical measuring device for the cutting edge profile of the high-precision circular-arc-edge diamond cutter according to claim 1, is characterized in that: the fine adjustment center rotary tool setting mechanism (4) comprises a rotary supporting component, a fine adjustment center component and a mounting component, the rotary supporting component is directly connected with the precision rotary shaft system (3), and the fine adjustment center component and the mounting component are arranged above the rotary supporting component.
4. The optical measuring device for the cutting edge profile of the high-precision circular-arc-edge diamond cutter according to claim 3, is characterized in that: the rotary support component comprises a semicircular disc (4-5), a transition plate (4-4), a sliding groove bolt (4-9) and a nut (4-10); the semicircular disc (4-5) is sleeved with a nut (4-10) through a sliding groove bolt (4-9) and embedded into a groove on the surface of the precision rotary shaft system (3), and the transition plate (4-4) is fixed on the semicircular disc (4-5).
5. The optical measuring device for the cutting edge profile of the high-precision circular-arc-edge diamond cutter according to claim 3, is characterized in that: the mounting assembly comprises a mounting seat (4-3) and a chute locking tool apron (4-2); the mounting seat (4-3) is fixed on the transition plate (4-4), and the chute locking tool apron (4-2) is fixed on the upper surface of the mounting seat (4-3) through a connecting screw.
6. The optical measuring device for the cutting edge profile of the high-precision circular-arc-edge diamond cutter according to claim 3, is characterized in that: the fine adjustment center component comprises an XY-direction two-dimensional differential feeding mechanism (4-1) and two spring pieces; a shell of the XY-direction two-dimensional differential feeding mechanism (4-1) is fixed on the upper surface of the mounting seat (4-3), and one ends of the X, Y-direction adjusting components of the XY-direction two-dimensional differential feeding mechanism (4-1) are respectively propped against two adjacent side surfaces of the chute locking tool holder (4-2); one ends of the two spring pieces are respectively pressed to the other two side surfaces of the chute locking tool apron (4-2), and the other ends of the two spring pieces are respectively fixedly arranged on the two side surfaces of the mounting seat (4-3); the spring piece is adjustable in length.
7. The optical measuring device for the cutting edge profile of the high-precision circular-arc-edge diamond cutter according to claim 1, is characterized in that: the motion range of the two-dimensional coarse aligning platform (2) is 100mm multiplied by 100 mm.
8. The optical measuring device for the cutting edge profile of the high-precision circular-arc-edge diamond cutter according to claim 1, is characterized in that: the lens resolution of the optical measurement and image acquisition system (5) is less than or equal to 0.32 mu m.
9. The optical measuring device for the cutting edge profile of the high-precision circular-arc-edge diamond cutter according to claim 1, is characterized in that: the radial circular runout of the precise rotary shaft system (3) is less than or equal to 100 mu m, and the end runout is less than or equal to 100 mu m.
10. The optical measuring device for the cutting edge profile of the high-precision circular-arc-edge diamond cutter according to claim 6, is characterized in that: the motion error of the two-dimensional differential feed mechanism (4-1) is 1 mu m plus (L/50) mu m, and L is the moving distance of the two-dimensional differential feed mechanism (4-1).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023042947A1 (en) * | 2021-09-18 | 2023-03-23 | 주식회사 윈텍오토메이션 | Automated system for inspecting curved surface of edge portion of carbide insert |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023042947A1 (en) * | 2021-09-18 | 2023-03-23 | 주식회사 윈텍오토메이션 | Automated system for inspecting curved surface of edge portion of carbide insert |
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