CN215725723U - Visual field expanding device for measuring long part by CCD camera - Google Patents
Visual field expanding device for measuring long part by CCD camera Download PDFInfo
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- CN215725723U CN215725723U CN202122129968.2U CN202122129968U CN215725723U CN 215725723 U CN215725723 U CN 215725723U CN 202122129968 U CN202122129968 U CN 202122129968U CN 215725723 U CN215725723 U CN 215725723U
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Abstract
The utility model discloses a visual field expanding device for a CCD camera to measure a long part, which comprises: the device comprises a measuring light table, a part positioning seat and a vision field expansion box, wherein the part positioning seat is fixed on the measuring light table, the vision field expansion box covers the part positioning seat, a camera interface is arranged in the middle of an upper cover of the vision field expansion box and is connected with a lens of a CCD (charge coupled device) camera, two groups of prism groups with reflection angles of 45 degrees are symmetrically arranged on two sides of the camera interface, each prism group comprises an end prism box and an interface prism, the end prisms are far away from the camera interface, the interface prisms are arranged under the camera interface and are attached back to back together, the whole camera interface is just shielded by projection on the upper cover of the vision field expansion box, and a prism adjusting mechanism is arranged on the vision field expansion box. By the mode, the utility model can effectively increase the world of the CCD camera lens and improve the measuring range of the whole measuring system.
Description
Technical Field
The utility model relates to the field of measuring instruments, in particular to a visual field expanding device for a CCD (charge coupled device) camera to measure long parts.
Background
With the development of the modern technology, the automation level of the production line is higher and higher, and the efficiency requirement of the on-line inspection matched with the production line is higher and higher. In the production process of small parts, the traditional inspection mode is manual measurement by field personnel, visual inspection is carried out, the detection speed is low, the error is high, the traditional inspection mode is not suitable for the production condition of the existing high-speed production line, in order to improve the detection efficiency, the existing common detection mode is to use a CCD camera to match with a corresponding detection system to carry out rapid measurement on the parts in a photographing mode, but the measurement mode is limited by the size of a camera lens, and if the longitudinal length of the parts is too large, the measurement range of the CCD camera is easily exceeded.
Disclosure of Invention
The utility model mainly solves the technical problem of providing a device which can expand the measurement visual field of a CCD camera and is convenient for detecting longer parts.
In order to solve the technical problems, the utility model adopts a technical scheme that: there is provided a visual field expanding device for a CCD camera to measure a long part, the visual field expanding device for a CCD camera to measure a long part comprising: the device comprises a measuring light table, a part positioning seat and a vision extension box, wherein the part positioning seat is fixed on the measuring light table, the vision extension box is covered on the part positioning seat, a camera interface is arranged in the middle of an upper cover of the vision extension box and is connected with a lens of a CCD (charge coupled device) camera, two groups of prism groups with reflection angles of 45 degrees are symmetrically arranged on two sides of the camera interface, each prism group comprises two prisms, one prism is an end prism and the other prism is an interface prism, the end prism is far away from the camera interface, the interface prisms are arranged under the camera interface, the two interface prisms are attached back to back, the whole camera interface is just covered by projection on the upper cover of the vision extension box, a prism adjusting mechanism is arranged on the vision extension box, and the prism adjusting mechanism can adjust the horizontal position of the end of the prism.
In a preferred embodiment of the present invention, the prism adjusting mechanism includes a mirror rail disposed at an upper portion of the field expansion box and an adjusting screw rod mounted at a back portion of the end prism, the mirror rail is symmetrically mounted at two ends of the end prism, rail sliders matched with the mirror rail are further mounted at two ends of the end prism, the adjusting screw rod includes a screw rod and an adjusting nut, one end of the screw rod is fixed at the back portion of the end prism, the other end of the screw rod passes through a screw rod hole preset on a side wall of one side of the field expansion box, and the adjusting nut is mounted on the screw rod and located outside the screw rod hole. And a positioning nut matched with the lead screw is arranged on the lead screw hole. And a limiting ball is arranged at the end of one end of the lead screw, which is positioned outside the visual field expansion box.
In a preferred embodiment of the present invention, a back plate is installed on the back of the end prism, and the length of the back plate is 2 to 4 times of the length of the side edge of the end prism.
In a preferred embodiment of the present invention, a light shielding plate is further disposed below the interface prism, and the width of the light shielding plate is 3 to 5 times the width of the camera interface.
The utility model has the beneficial effects that: according to the utility model, the patterns of the two ends of the slender part are spliced by the pair of reflecting prism groups and then reflected into the lens of the CCD camera, and then the measurement is carried out by the detection system matched with the CCD camera, so that the visual field of the CCD camera detection lens is effectively improved, and the application range of the CCD camera measurement system is expanded.
Drawings
FIG. 1 is a schematic structural diagram illustrating the operation of a preferred embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of the structure within the circle;
the parts in the drawings are numbered as follows:
1. the system comprises a part, a light table 2, a CCD camera 3, a part positioning seat 4, a vision field expansion box 5, an interface prism 6, an end prism 7, a back plate 8, an adjusting screw rod 9, a mirror rail 10 and a rail sliding block 11;
901. the screw rod, 902, an adjusting nut, 903, a positioning nut, 904, a limiting ball and 905, and an end positioning block.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.
Referring to fig. 1 and 2, an embodiment of the present invention includes:
example 1
A field of view expanding apparatus for a CCD camera to measure a long part, comprising: a measuring light table 2, a part positioning seat 4 and a vision field expansion box 5, wherein the part positioning seat 4 is fixed on the measuring light table 2, the visual field expansion box 5 is covered on the part positioning seat 4, a camera interface is arranged in the middle of an upper cover of the visual field expansion box 5, the camera interface is connected with the lens of the CCD camera 3, two groups of prism groups with a reflection angle of 45 degrees are symmetrically arranged at two sides of the camera interface, each prism group comprises two prisms, one is an end prism 7 and the other is an interface prism 6, the end prism 7 is far away from the camera interface, the interface prism 6 is arranged right below the camera interface, the two interface prisms 6 are attached together back to back, the projection on the upper cover of the visual field expansion box 5 just covers the whole camera interface, a prism adjusting mechanism is arranged on the visual field expansion box 5, and the prism adjusting mechanism can adjust the horizontal position of the end prism 7.
The prism adjusting mechanism comprises a mirror rail 10 arranged on the upper portion of the visual field expansion box 5 and an adjusting lead screw 9 arranged on the back of the end prism 7, the mirror rail 10 is symmetrically arranged at two ends of the end prism 7, two ends of the end prism 7 are further provided with a track sliding block 11 matched with the mirror rail 10, the adjusting lead screw 9 comprises a lead screw 901 and an adjusting nut 902, one end of the lead screw 901 is fixed on the back of the end prism 7, the other end of the lead screw 901 penetrates through a preset lead screw hole in the side wall of one side of the visual field expansion box 5, and a limiting ball 905 is arranged at the end position of one end, located on the outer side of the visual field expansion box, of the lead screw 9, so that the lead screw end can be prevented from falling into the visual field expansion box 5 due to excessive adjustment of the lead screw 901. The adjusting nut 902 is mounted on the lead screw 901 and located outside the lead screw hole, and the lead screw hole is mounted with a positioning nut 903 matched with the lead screw 901. Through the structure, the adjusting nut 902 can be rotated to adapt the end prism 7 to the slender parts 1 with different specification lengths. And the positioning nut 903 arranged on the screw hole can prevent the damage of the screw thread on the screw 901 to the side wall in the long-term use process, thereby prolonging the service life.
A light shielding plate 12 is further arranged below the interface prism 6, the width of the light shielding plate 12 is 5 times of the width of the camera interface, and the light shielding plate 12 is used for reducing light rays received by the camera interface right below and improving the contrast of images received by a lens of the CCD camera 3.
Example 2
A field of view expanding apparatus for a CCD camera to measure a long part, comprising: a measuring light table 2, a part positioning seat 4 and a vision field expansion box 5, wherein the part positioning seat 4 is fixed on the measuring light table 2, the visual field expansion box 5 is covered on the part positioning seat 4, a camera interface is arranged in the middle of an upper cover of the visual field expansion box 5, the camera interface is connected with the lens of the CCD camera 3, two groups of prism groups with a reflection angle of 45 degrees are symmetrically arranged at two sides of the camera interface, each prism group comprises two prisms, one is an end prism 7 and the other is an interface prism 6, the end prism 7 is far away from the camera interface, the interface prism 6 is arranged right below the camera interface, the two interface prisms 6 are attached together back to back, the projection on the upper cover of the visual field expansion box 5 just covers the whole camera interface, a prism adjusting mechanism is arranged on the visual field expansion box 5, and the prism adjusting mechanism can adjust the horizontal position of the end prism 7.
The prism adjusting mechanism comprises a mirror rail 10 arranged on the upper portion of the visual field expansion box 5 and an adjusting lead screw 9 arranged on the back of the end prism 7, the mirror rail 10 is symmetrically arranged at two ends of the end prism 7, two ends of the end prism 7 are further provided with a track sliding block 11 matched with the mirror rail 10, the adjusting lead screw 9 comprises a lead screw 901 and an adjusting nut 902, one end of the lead screw 901 is fixed on the back of the end prism 7, the other end of the lead screw 901 penetrates through a preset lead screw hole in the side wall of one side of the visual field expansion box 5, and a limiting ball 905 is arranged at the end position of one end, located on the outer side of the visual field expansion box, of the lead screw 9, so that the lead screw end can be prevented from falling into the visual field expansion box 5 due to excessive adjustment of the lead screw 901. The adjusting nut 902 is mounted on the lead screw 901 and located outside the lead screw hole, and the lead screw hole is mounted with a positioning nut 903 matched with the lead screw 901. Through the structure, the adjusting nut 902 can be rotated to adapt the end prism 7 to the slender parts 1 with different specification lengths. And the positioning nut 903 arranged on the screw hole can prevent the damage of the screw thread on the screw 901 to the side wall in the long-term use process, thereby prolonging the service life.
A light shielding plate 12 is further arranged below the interface prism 6, the width of the light shielding plate 12 is 3 times of the width of the camera interface, and the light shielding plate 12 is used for reducing light rays received by the camera interface right below and improving the contrast of images received by a lens of the CCD camera 3.
The working principle of the above two embodiments of the utility model is as follows:
during measurement, a corresponding part is placed on the part positioning seat 4, the vision field expansion box 5 covers the part 1, the light table 2 is started, the position of the end prism 7 on the vision field expansion box 5 is adjusted, the whole part 1 is in a vision field range, light on the light table 2 reflects an end image of the part 1 through the end prism 7 and then enters the interface prism 6, the image is reflected into the lens of the CCD camera 3 through the interface prism 6, and the CCD measurement system is used for detecting the part 1.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A visual field expanding device for a CCD camera to measure a long part, comprising: the device comprises a measuring light table, a part positioning seat and a vision extension box, wherein the part positioning seat is fixed on the measuring light table, the vision extension box is covered on the part positioning seat, a camera interface is arranged in the middle of an upper cover of the vision extension box and is connected with a lens of a CCD (charge coupled device) camera, two groups of prism groups with reflection angles of 45 degrees are symmetrically arranged on two sides of the camera interface, each prism group comprises two prisms, one prism is an end prism and the other prism is an interface prism, the end prism is far away from the camera interface, the interface prisms are arranged under the camera interface, the two interface prisms are attached back to back, the whole camera interface is just covered by projection on the upper cover of the vision extension box, a prism adjusting mechanism is arranged on the vision extension box, and the prism adjusting mechanism can adjust the horizontal position of the end of the prism.
2. The vision field expanding device for the CCD camera to measure the long part as claimed in claim 1, wherein the prism adjusting mechanism comprises a mirror rail disposed on the top of the vision field expanding box and an adjusting screw rod mounted on the back of the end prism, the mirror rail is symmetrically mounted on both ends of the end prism, rail sliders matched with the mirror rail are further mounted on both ends of the end prism, the adjusting screw rod comprises a screw rod and an adjusting nut, one end of the screw rod is fixed on the back of the end prism, the other end of the screw rod passes through a screw rod hole preset on one side wall of the vision field expanding box, and the adjusting nut is mounted on the screw rod and located outside the screw rod hole.
3. The vision field expanding device for the CCD camera measuring long part as claimed in claim 2, wherein a positioning nut matching with the lead screw is mounted on the lead screw hole.
4. The vision field expanding device for the CCD camera to measure the long part as claimed in claim 2, wherein a position limiting ball is installed at the end of one end of the screw rod located outside the vision field expanding box.
5. The vision field expanding device for the CCD camera to measure the long part as claimed in claim 1, wherein a back plate is installed at the back of the end prism, and the length of the back plate is 2-4 times of the length of the side edge of the end prism.
6. The visual field expanding device for the CCD camera to measure the long part as claimed in claim 1, wherein a light shielding plate is further arranged below the interface prism, and the width of the light shielding plate is 3-5 times of the width of the camera interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122129968.2U CN215725723U (en) | 2021-09-06 | 2021-09-06 | Visual field expanding device for measuring long part by CCD camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122129968.2U CN215725723U (en) | 2021-09-06 | 2021-09-06 | Visual field expanding device for measuring long part by CCD camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215725723U true CN215725723U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122129968.2U Active CN215725723U (en) | 2021-09-06 | 2021-09-06 | Visual field expanding device for measuring long part by CCD camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215725723U (en) |
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2021
- 2021-09-06 CN CN202122129968.2U patent/CN215725723U/en active Active
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