CN210220994U - Measuring mechanism for measuring thread parameters by image method - Google Patents
Measuring mechanism for measuring thread parameters by image method Download PDFInfo
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- CN210220994U CN210220994U CN201921298865.5U CN201921298865U CN210220994U CN 210220994 U CN210220994 U CN 210220994U CN 201921298865 U CN201921298865 U CN 201921298865U CN 210220994 U CN210220994 U CN 210220994U
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Abstract
The utility model relates to a screw thread parameter measurement technical field just discloses a measuring mechanism of image method measurement screw thread parameter, the on-line screen storage device comprises a base, base top fixed mounting has quantity to be two green light filter. This measuring mechanism of image method measurement screw thread parameter, through the profile of image method projection measurement external screw thread, utilize image processing technique to calculate the pitch of screw thread and major/well/path isoparametric, according to the helix angle of screw thread during the measurement, adjust the angular displacement platform, after the rotatory angle of spiral work piece, make light pass through the screw thread work piece completely, telecentric light source launches parallel light source, enter into two telecentric mirror heads through the screw thread work piece, become clear screw thread profile by the industrial camera, wherein green filter can inject in two telecentric mirror heads by injecing the light in the tunm scope, avoid other wave band visible light, influence to screw thread measuring error, thereby can the precision measurement screw thread, reach the high effect of convenient easy operation screw thread measurement accuracy.
Description
Technical Field
The utility model relates to a technical field is measured to the screw thread parameter, specifically is a measuring mechanism of screw thread parameter is measured to image method.
Background
The screw is most widely applied in various industries, and is a connecting piece for connecting various parts into a whole to form an equipment assembly and a machine, and the development of the industry, the agriculture and the military industry of the present day is not existed without the screw. The variety of screws is many, such as square thread, trapezoidal thread, saw-tooth thread, triangular thread and tapered thread; triangular threads are most widely used.
In actual use, a frequently damaged area of a screw is a damaged part with threads, the original part and the parameters of the screw need to be mapped for replacing and repairing, and the inner diameter and the outer diameter of the threads are measured by using a vernier caliper in the conventional measuring method; the thread form angle is measured by a thread gauge, the measuring method is already available from the moment of the existence of a screw, the measuring method is simple and practical, certain working experience and technical requirements are required, errors can occur even if people with certain working experience measure the thread form angle, and therefore the measuring mechanism for measuring the thread parameters by the image method is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a measuring mechanism of thread parameter is measured to image method possesses the advantage of measuring the precision height and simply easily operating, has solved the problem that the measurement precision is low.
(II) technical scheme
For the purpose that realizes above-mentioned measurement precision height and simple easy operation, the utility model provides a following technical scheme: a measuring mechanism for measuring thread parameters by an image method comprises a base, wherein two green light filters are fixedly mounted at the top of the base, an angular displacement table positioned between the two green light filters is fixedly mounted at the top of the base, a threaded workpiece is fixedly mounted at the top of the angular displacement table, a spring collet is sleeved on the outer side of the threaded workpiece, a telecentric light source positioned on the right side of the green light filter is fixedly mounted at the top of the base, a fixed support plate positioned on the left side of the green light filter on the left side is fixedly mounted at the top of the base, a double telecentric lens with one end penetrating through and extending to the left side of the fixed support plate is fixedly mounted at the right side of the fixed support plate, an industrial camera is fixedly mounted on the left side of the double telecentric lens, baffles are fixedly mounted at, base top fixed mounting has quantity to be two safety covers, the left side green filter, left side baffle, two telecentric mirror heads and industry camera all are located the left side safety cover, the right side green filter, telecentric light source and right side baffle all are located the right side safety cover.
Preferably, the base is marble, four the supporting leg is the equidistance symmetric distribution.
Preferably, the two baffles and the two green filters are symmetrically distributed, and the top corners of the two baffles and the top corners of the two green filters are chamfered.
Preferably, through holes are formed in the two green filters, and the two green filters are perpendicular to the base.
Preferably, an opening is formed in the fixed supporting plate, and the diameter of the opening is matched with the diameter of the double telecentric lens.
(III) advantageous effects
Compared with the prior art, the utility model provides a measuring mechanism of thread parameter is measured to image method possesses following beneficial effect:
this measuring mechanism of image method measurement screw thread parameter, through the profile of image method projection measurement external screw thread, utilize image processing technique to calculate the pitch of screw thread and major/well/path isoparametric, according to the helix angle of screw thread during the measurement, adjust the angular displacement platform, can rotate because of the angle of spiral work piece, after the spiral work piece rotates an angle, make light pass through the screw thread work piece completely, telecentric light source launches parallel light source, enter into two telecentric mirror heads through the screw thread work piece, become clear screw thread profile by the industry camera, wherein green filter can inject two telecentric mirror heads in tu25nm within range light incidence, avoid the visible light of all the other wave bands, the influence to screw thread measuring error, thereby can the accurate measurement screw thread, reach the high effect of convenient easy operation screw thread measurement accuracy.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the structural base of the present invention;
fig. 3 is a schematic view of the structure light source of the present invention passing through the thread.
In the figure: the device comprises a base 1, a collet chuck 2, an angular displacement table 3, a green light filter 4, a telecentric light source 5, a double telecentric lens 6, an industrial camera 7, a protective cover 8, a baffle 9, a threaded workpiece 10 and supporting legs 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, a measuring mechanism for measuring thread parameters by an image method comprises a base 1, two green filters 4 are fixedly installed on the top of the base 1, through holes are formed in the two green filters 4, the two green filters 4 are perpendicular to the base 1, and can stably allow a light source of a telecentric light source 5 to pass through, the base 1 is made of marble, so that the base 1 is more firmly supported, an angular displacement table 3 is fixedly installed on the top of the base 1 and is positioned between the two green filters 4, a threaded workpiece 10 is fixedly installed on the top of the angular displacement table 3, a spring collet chuck 2 is sleeved on the outer side of the threaded workpiece 10, the telecentric light source 5 is fixedly installed on the top of the base 1 and is positioned on the right side of the green filter 4 on the right side, a fixed support plate 12 is fixedly installed on the top of the base 1 and, the opening diameter is matched with the diameter of a double-telecentric lens 6, the double-telecentric lens 6 can be stably supported, one end of the right side of a fixed supporting plate 12 is fixedly arranged to penetrate through and extend to the double-telecentric lens 6 on the left side of the fixed supporting plate, an industrial camera 7 is fixedly arranged on the left side of the double-telecentric lens 6, baffles 9 are fixedly arranged on the left side and the right side of the top of a base 1, the two baffles 9 and the two green filters 4 are symmetrically distributed, the top corners of the two baffles 9 and the two green filters 4 are in a chamfer shape, two supporting legs 11 are fixedly arranged on the front side and the back side of the bottom of the base 1, the four supporting legs 11 are symmetrically distributed in an equal distance, the base 1 can be stably supported, two protective covers 8 are fixedly arranged on the top of the base 1, the left green filters 4, the left baffle 9, The telecentric light source 5 and the right baffle 9 are both positioned in the right protective cover 8, the measuring mechanism for measuring the thread parameters by the image method, the contour of the external thread is measured by projection of an image method, parameters such as the thread pitch, the major/minor diameter and the like of the thread are calculated by utilizing an image processing technology, the angular displacement table 3 is adjusted according to the helix angle of the thread during measurement, the helical workpiece 10 can rotate due to the angle, when the spiral workpiece 10 rotates for an angle, the light rays completely penetrate through the thread workpiece 10, the telecentric light source 5 emits parallel light sources, the parallel light sources enter the double telecentric lens 6 through the thread workpiece 10, the clear thread profile is formed by the industrial camera 7, wherein the green filter 4 can limit the incidence of the light in the tu25nm range into the double telecentric lens 6, avoid the visible light in the rest wave bands, the influence on the thread measuring error, thereby being capable of accurately measuring the thread and achieving the effect of convenient and easy operation and high thread measuring accuracy.
In summary, the measuring mechanism for measuring thread parameters by the image method measures the profile of the external thread by the image projection method, calculates the thread pitch and major/minor diameters of the thread by the image processing technology, adjusts the angular displacement table 3 according to the helix angle of the thread during measurement, can rotate due to the angle of the helical workpiece 10, when the spiral workpiece 10 rotates for an angle, the light rays completely penetrate through the thread workpiece 10, the telecentric light source 5 emits parallel light sources, the parallel light sources enter the double telecentric lens 6 through the thread workpiece 10, the clear thread profile is formed by the industrial camera 7, wherein the green filter 4 can limit the incidence of the light in the tu25nm range into the double telecentric lens 6, avoid the visible light in the rest wave bands, the influence to screw thread measuring error to can the precision measurement screw thread, reach the effect that convenient easy operation screw thread measurement accuracy is high, solved the above-mentioned problem that measures the precision and hang down.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a measuring mechanism of image method measurement screw thread parameter, includes base (1), its characterized in that: the LED lamp holder is characterized in that the number of two green light filters (4) is fixedly mounted at the top of the base (1), an angular displacement table (3) located between the two green light filters (4) is fixedly mounted at the top of the base (1), a threaded workpiece (10) is fixedly mounted at the top of the angular displacement table (3), a spring collet chuck (2) is sleeved on the outer side of the threaded workpiece (10), a telecentric light source (5) located on the right side of the green light filter (4) is fixedly mounted at the top of the base (1), a fixed support plate (12) located on the left side of the green light filter (4) on the left side is fixedly mounted at the top of the base (1), one end of the fixed support plate (12) penetrates through and extends to a double telecentric lens (6) on the left side of the fixed support plate, an industrial camera (7) is fixedly mounted on the left side, the utility model discloses a light-emitting device, including base (1), base (1) top fixed mounting have the quantity to be two supporting legs (11) around the bottom, base (1) top fixed mounting have quantity to be two safety cover (8), left side green filter (4), left side baffle (9), two telecentric mirror head (6) and industry camera (7) all are located left side safety cover (8), right side green filter (4), telecentric light source (5) and right side baffle (9) all are located right side safety cover (8).
2. The apparatus of claim 1, wherein the screw thread parameter measuring device comprises: the base (1) is marble, four the supporting legs (11) are equidistance symmetric distribution.
3. The apparatus of claim 1, wherein the screw thread parameter measuring device comprises: two equal symmetric distribution of baffle (9) and two green filters (4), two baffle (9) and two green filters (4) top corner all are the chamfer form.
4. The apparatus of claim 1, wherein the screw thread parameter measuring device comprises: through holes are formed in the two green filters (4), and the two green filters (4) are perpendicular to the base (1).
5. The apparatus of claim 1, wherein the screw thread parameter measuring device comprises: an opening is formed in the fixed supporting plate (12), and the diameter of the opening is matched with that of the double telecentric lens (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921298865.5U CN210220994U (en) | 2019-08-12 | 2019-08-12 | Measuring mechanism for measuring thread parameters by image method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921298865.5U CN210220994U (en) | 2019-08-12 | 2019-08-12 | Measuring mechanism for measuring thread parameters by image method |
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| CN210220994U true CN210220994U (en) | 2020-03-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111578836A (en) * | 2020-04-27 | 2020-08-25 | 深圳市富优驰科技有限公司 | Mobile phone lifting camera ejector rod thread detection machine |
| CN113118871A (en) * | 2021-05-31 | 2021-07-16 | 包头职业技术学院 | Online measuring equipment for geometric dimension of lathe workpiece |
| CN116295019A (en) * | 2023-05-22 | 2023-06-23 | 中国石油大学(华东) | Automatic detection device for pipe threads of pipe |
-
2019
- 2019-08-12 CN CN201921298865.5U patent/CN210220994U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111578836A (en) * | 2020-04-27 | 2020-08-25 | 深圳市富优驰科技有限公司 | Mobile phone lifting camera ejector rod thread detection machine |
| CN113118871A (en) * | 2021-05-31 | 2021-07-16 | 包头职业技术学院 | Online measuring equipment for geometric dimension of lathe workpiece |
| CN116295019A (en) * | 2023-05-22 | 2023-06-23 | 中国石油大学(华东) | Automatic detection device for pipe threads of pipe |
| CN116295019B (en) * | 2023-05-22 | 2023-08-15 | 中国石油大学(华东) | Automatic detection device for pipe threads of pipe |
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