CN212872244U - Inner wall defect detection device - Google Patents
Inner wall defect detection device Download PDFInfo
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- CN212872244U CN212872244U CN202022253288.7U CN202022253288U CN212872244U CN 212872244 U CN212872244 U CN 212872244U CN 202022253288 U CN202022253288 U CN 202022253288U CN 212872244 U CN212872244 U CN 212872244U
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- wall defect
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- 230000007547 defect Effects 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 title description 10
- 230000005540 biological transmission Effects 0.000 claims abstract 2
- 230000000694 effects Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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Abstract
The utility model relates to an inner wall defect detecting device, including light deflection subassembly, light source, camera, the light source is used for shining the detected work piece inner wall, and light deflection subassembly is used for getting for the picture for the completion with the camera with inner wall image information transmission, the lower extreme at first support is fixed to light deflection subassembly, and the upper end of first support is equipped with the second support, and the second support includes focusing mechanism, and focusing mechanism includes linear movement's movable block from top to bottom, the camera is installed on the movable block, the second support still is equipped with the guide structure who leads to the removal of camera. The utility model discloses an inner wall defect detecting device is equipped with focusing mechanism, through focusing, improves the definition of taking images.
Description
Technical Field
The utility model relates to a product inner wall defect detection field, concretely relates to inner wall defect detecting device.
Background
After the parts are machined and formed, certain inner wall defects (such as scratches, sand holes, cracks and other defects) may exist, and such products are also unqualified products, and if the parts are subsequently installed in equipment, potential safety hazards exist. Therefore, the inner wall of the machined part needs to be detected, but the detection space of the inner wall of the part is limited, and the camera cannot directly take images from the front side.
The invention discloses a device for detecting defects of an inner wall of a cylinder, which is disclosed in the invention patent with application publication number CN 111025619A. The camera lens is provided with a channel through which light can pass, the light source emits light to illuminate the interior of the workpiece to be detected, the light is transmitted along the channel after passing through the light deflection assembly, and the shooting direction of the camera assembly is just aligned to the other end of the channel. The rotating platform where the workpiece is located rotates, the camera assembly scans and captures the inner wall of the workpiece to be detected, and whether the inner wall of the workpiece has defects or not is judged according to the final picture. The problem of pipe class work piece inner wall detection has been solved to a certain extent, but the distance between this camera subassembly and the light deflection subassembly is not adjustable, and focusing that also is not convenient for just can clearly get for instance the work piece to some needs focusing, and detection effect is unsatisfactory.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a get for instance inner wall defect detection device of in-process focusing to improve and get the image definition.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an inner wall defect detecting device, includes light deflection subassembly, light source, camera, and the light source is used for shining the work piece inner wall that is detected, and light deflection subassembly is used for transmitting inner wall image information for the camera in order to accomplish getting for instance, light deflection subassembly is fixed at the lower extreme of first support, and the upper end of first support is equipped with the second support, and the second support includes focusing mechanism, and focusing mechanism includes linear movement's movable block from top to bottom, the camera is installed on the movable block, the second support still is equipped with the guide structure who leads to the removal of camera.
Furthermore, the light deflection assembly comprises an obliquely arranged lens and a lens mounting seat, and a light source fixing seat is arranged on the lens mounting seat and used for fixing the light source.
Further, the lens is arranged at an inclination of 45 degrees.
Further, first support includes first bottom plate, and first bottom plate is equipped with the stand, the lens mount pad sets up on the first bottom plate, second leg joint is on stand upper portion.
Furthermore, the focusing mechanism adopts a lead screw nut mechanism, two ends of a lead screw in the lead screw nut mechanism are installed on the second support, and a nut in the lead screw nut mechanism forms the moving block.
Further, the guide structure is a guide rod.
Further, the guide bars are provided with two, and the camera is located in a space between the two guide bars.
Furthermore, the second bracket comprises a second bottom plate, and the lower ends of the lead screw and the two guide rods are fixed on the second bottom plate; the second bottom plate is an arc-shaped plate with a radial opening; the radial opening forms an abdication notch for the lens of the camera to move up and down.
Further, the second support comprises a second top plate positioned above the second bottom plate, and a motor for driving the lead screw to rotate is mounted on the second top plate; the upper ends of the screw rod and the two guide rods are fixed on the second top plate.
The utility model has the advantages that:
the utility model discloses an inner wall defect detection device is equipped with focusing mechanism, and the camera can be driven in order to carry out linear motion, adjusts its and light offset assembly (like the lens) distance between to reach the purpose of focusing, according to the dimensional parameter of the work piece of actually being surveyed, adjustment camera to preferred position improves and gets the definition of making an image, and then can improve and detect the precision.
Drawings
Fig. 1 is a schematic structural view of an inner wall defect detecting apparatus according to the present invention;
fig. 2 is a schematic structural view of an inner wall defect detecting device according to another aspect of the present invention;
fig. 3 is a schematic diagram of a usage state of the inner wall defect detecting apparatus according to the present invention (a partial structure of a workpiece is shown in the figure).
Names corresponding to the marks in the figure:
11. the lens comprises a first bottom plate, 12, a vertical column, 2, a lens, 3, a light source fixing seat, 4, a camera, 41, a lens, 51, a second bottom plate, 52, a second top plate, 53, a guide rod, 54, an abdicating notch, 61, a lead screw, 62, a moving block, 7, a motor, 8 and a workpiece.
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 all belong to the protection scope of the present invention.
The embodiment of the utility model provides a:
as shown in fig. 1-3, an inner wall defect detecting apparatus includes a light deflection assembly, a light source and a camera, wherein the light source is used for irradiating the inner wall of a detected workpiece 8, the light deflection assembly is used for transmitting image information of the inner wall to the camera to complete image capture, and the light deflection assembly is fixed at the lower end of a first bracket. The light beam deflection assembly comprises a lens 2 which is obliquely arranged and a lens mounting seat for fixing the lens 2, and the lens 2 adopts a plane mirror. And a light source fixing seat 3 is arranged on the lens mounting seat and used for fixing the light source, and the lens is inclined by 45 degrees.
The first support comprises a first bottom plate 11, the first bottom plate 11 is provided with two upright posts 12, the lens mounting seat is arranged on the first bottom plate 11 and located between the two upright posts 12, and the structure is simple and does not affect the reflection of images.
The upper end of the upper part of the upright post 12 of the first support is provided with a second support, the second support comprises a focusing mechanism, the focusing mechanism comprises a moving block 62 capable of linearly moving up and down, and the moving block is used for driving the camera to linearly move up and down, so that the distance between the moving block and the lens is changed, and focusing is realized.
In this embodiment, the focusing mechanism is a lead screw nut mechanism, two ends of a lead screw 61 in the lead screw nut mechanism are mounted on the second support, and a nut in the lead screw nut mechanism forms the moving block 62. The camera 4 is mounted on the moving block 62, and the second bracket is further provided with a guide structure for guiding the movement of the camera.
The guide structure is guide rod 53, and guide rod 53 is provided with two, and the camera is located the space between two guide rods. The moving block 62 is provided with a corresponding guide sleeve which is arranged on the guide rod in a penetrating way.
The second bracket comprises a second bottom plate 51, and the lower ends of the screw 61 and the two guide rods 53 are fixed on the second bottom plate 51; in this embodiment, the second bottom plate belongs to the second bracket, but in other embodiments, it can be considered as belonging to the first bracket and serving as the first top plate of the first bracket. The second bottom plate 51 is an arc plate with a radial opening; the radial opening forms a clearance notch 54 for the lens of the camera to move up and down, which does not affect the movement and image capture of the lens 51 of the camera 4.
The second bracket comprises a second top plate 52 positioned above the second bottom plate 51, and the upper ends of the screw 61 and the two guide rods 53 are fixed on the second top plate 52. The second top plate 52 is provided with a motor 7, i.e. a servo motor, for driving the lead screw to rotate, or in other embodiments, a stepping motor or the like may be used. The lead screw rotates to drive the nut on the lead screw, namely the moving block to move linearly up and down, the camera moves along with the lead screw, and the lens is fixed, so that the purpose of focusing is achieved, and the image taking and cleaning are guaranteed to be reliable. The workpiece to be detected performs rotary motion on the placing platform under the action of an external driving mechanism and completes image capture of a circle in cooperation with the camera; whole detection device in this embodiment reciprocates by doing under the external drive mechanism effect, can accomplish the detection of whole product inner wall under the cooperation of up-down and rotary motion, and this part content belongs to prior art, the utility model discloses a focus lies in the focusing.
In other embodiments, a focusing mechanism for driving the camera to move may be a mechanism such as an electric push rod, instead of the screw nut mechanism in the above embodiments.
Claims (9)
1. The utility model provides an inner wall defect detecting device, includes light deflection subassembly, light source, camera, and the light source is used for shining and is detected the work piece inner wall, and light deflection subassembly is used for getting for instance its characterized in that with the completion with inner wall image information transmission for the camera: the light deflection assembly is fixed at the lower end of the first support, the second support is arranged at the upper end of the first support and comprises a focusing mechanism, the focusing mechanism comprises a moving block capable of linearly moving up and down, the camera is mounted on the moving block, and the second support is further provided with a guide structure for guiding the movement of the camera.
2. The inner wall defect detecting apparatus according to claim 1, wherein: the light deflection assembly comprises a lens and a lens mounting seat which are obliquely arranged, and a light source fixing seat is arranged on the lens mounting seat and used for fixing the light source.
3. The inner wall defect detecting apparatus according to claim 2, wherein: the lens is arranged at an inclination of 45 degrees.
4. The inner wall defect detecting apparatus according to claim 2, wherein: the first support comprises a first bottom plate, the first bottom plate is provided with a stand column, the lens mounting seat is arranged on the first bottom plate, and the second support is connected to the upper portion of the stand column.
5. The inner wall defect detecting apparatus according to claim 1, wherein: the focusing mechanism adopts a lead screw nut mechanism, two ends of a lead screw in the lead screw nut mechanism are arranged on the second support, and a nut in the lead screw nut mechanism forms the moving block.
6. The inner wall defect detecting apparatus according to claim 5, wherein: the guide structure is a guide rod.
7. The inner wall defect detecting apparatus according to claim 6, wherein: the guide bars are provided with two, and the camera is located in the space between two guide bars.
8. The inner wall defect detecting apparatus according to claim 7, wherein: the second support comprises a second bottom plate, and the lower ends of the lead screw and the two guide rods are fixed on the second bottom plate; the second bottom plate is an arc-shaped plate with a radial opening; the radial opening forms an abdication notch for the lens of the camera to move up and down.
9. The inner wall defect detecting apparatus according to claim 8, wherein: the second support comprises a second top plate positioned above the second bottom plate, and a motor for driving the lead screw to rotate is mounted on the second top plate; the upper ends of the screw rod and the two guide rods are fixed on the second top plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022253288.7U CN212872244U (en) | 2020-10-10 | 2020-10-10 | Inner wall defect detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022253288.7U CN212872244U (en) | 2020-10-10 | 2020-10-10 | Inner wall defect detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212872244U true CN212872244U (en) | 2021-04-02 |
Family
ID=75201039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022253288.7U Active CN212872244U (en) | 2020-10-10 | 2020-10-10 | Inner wall defect detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212872244U (en) |
-
2020
- 2020-10-10 CN CN202022253288.7U patent/CN212872244U/en active Active
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