CN220625205U - Flexible needle tube detection system - Google Patents
Flexible needle tube detection system Download PDFInfo
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- CN220625205U CN220625205U CN202321947846.7U CN202321947846U CN220625205U CN 220625205 U CN220625205 U CN 220625205U CN 202321947846 U CN202321947846 U CN 202321947846U CN 220625205 U CN220625205 U CN 220625205U
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- sliding block
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- acquisition device
- detection system
- light source
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- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 238000012937 correction Methods 0.000 claims abstract description 19
- 230000003287 optical effect Effects 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 description 6
- 239000002994 raw material Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000003698 laser cutting Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The utility model relates to a flexible needle tube detection system. The flexible needle tube detection system of the utility model comprises: the device comprises a first image acquisition device, a second image acquisition device, a positioning device and a light path adjusting device; the positioning device comprises a base, a support column and a correction device, wherein the support column is arranged on the base, the correction device is arranged on the support column, and the first image acquisition device is arranged on the correction device; the light path of the second image acquisition device is coaxial with the first image acquisition device after being adjusted by the light path adjusting device. The flexible needle tube detection system has the advantages of simultaneously detecting the aperture sizes and the positions of the upper and lower holes of the needle tube, and being convenient and accurate in correction.
Description
Technical Field
The utility model relates to the field of detection, in particular to detection after laser hole cutting.
Background
In some flexible needle tube manufacturing processes, a raw material is cut by a laser cutting device, laser is irradiated onto the cut raw material by a laser head, and a material on the raw material is melted or gasified by using the high temperature of the laser to punch holes, so that a flexible needle tube is manufactured, and the aperture of the obtained flexible needle tube is a conical hole.
However, after laser cutting, fine dust may adhere to the inside of the needle tube aperture, and because there may be deviation of cutting position and cutting size after cutting the flexible product, the actual use of the product is directly affected. Therefore, a novel detection system is needed to detect the qualification rate of the flexible needle tube, however, a common detection system can only detect one direction of the flexible needle tube, and the aperture of the flexible needle tube is a conical hole, so that the cutting position, the deviation of the cutting size and dust in a needle hole can be accurately detected only by detecting the two ends of the aperture.
Disclosure of Invention
Accordingly, an object of the present utility model is to provide a flexible needle tube detection system that has the advantage of being able to detect the size and position of the upper and lower hole diameters of a needle tube simultaneously.
A flexible needle tube detection system comprises a first image acquisition device, a second image acquisition device, a positioning device and a light path adjustment device; the positioning device comprises a base, a support column and a correction device, wherein the support column is arranged on the base, the correction device is arranged on the support column, and the first image acquisition device is arranged on the correction device; the light path of the second image acquisition device is coaxial with the first image acquisition device after being adjusted by the light path adjusting device.
According to the flexible needle tube detection system, the light path of the second image acquisition device is coaxial with the light path of the first image acquisition device after deflection through the light path adjustment device, so that the effect of detecting the aperture size and the position of the upper hole and the lower hole of the needle tube simultaneously is achieved, and the first image acquisition device can be corrected conveniently and accurately through the correction device.
Further, the first image acquisition device comprises a first camera, a first coaxial light source and a first lens; the first camera is connected with the first coaxial light source, and the other end of the first coaxial light source is connected with the first lens; the second image acquisition device comprises a second camera, a second coaxial light source and a second lens; the second camera is connected with the second coaxial light source, and the other end of the second coaxial light source is connected with the second lens.
Further, the correction device comprises a first sliding block, a second sliding block, a third sliding block, an L-shaped plate and a fourth sliding block; the first sliding block is fixedly connected with the support column, the second sliding block is arranged above the first sliding block, the third sliding block is arranged above the second sliding block, and one side of the L-shaped plate is connected with the third sliding block; the fourth sliding block is connected with the other side of the L-shaped plate, the sliding direction of the first sliding block is parallel to the plane where the base is located, and the sliding direction of the fourth sliding block is perpendicular to the plane where the base is located.
Further, the sliding direction of the second sliding block is parallel to the plane where the base is located and perpendicular to the sliding direction of the first sliding block; the sliding direction of the third sliding block is parallel to the sliding direction of the first sliding block.
Further, the optical axis of the first image acquisition device is perpendicular to the plane where the base is located, and the light path adjusting device is arranged right below the first image acquisition device.
By the correction device, the first image pickup device can be subjected to four-axis correction, and the optical path of the first image pickup device can be accurately adjusted so as to be coaxial with the optical path adjustment device.
Further, the light path adjusting device is a prism.
Further, a chute is arranged on the base, and the prism is arranged in the chute.
Further, the second image acquisition device is arranged on the base through an adjustable seat, and an optical axis of the second image acquisition device is parallel to the base.
Further, the device also comprises an external light source, wherein the external light source is arranged beside the positioning device.
For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.
Drawings
FIG. 1 is a perspective view of a flexible needle cannula detection system of the present utility model;
FIG. 2 is a side view of the flexible needle cannula detection system of the present utility model;
fig. 3 is a perspective view of the calibration device.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical direction", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific azimuth, and are constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, thermally conductive, detachably or integrally connected, mechanically connected, electrically connected, directly connected, or connected via an intermediary, or may be a communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Examples
Referring to fig. 1, the flexible needle tube detection system provided by the utility model comprises a first image acquisition device 1, a second image acquisition device 2, a positioning device 3 and a light path adjustment device 4. The first image acquisition device 1 is arranged on the positioning device 3 and is used for acquiring an image of one end of the aperture of the needle tube to be detected, and the positioning device 3 is used for correcting the position of the first image acquisition device 1; the second image acquisition device 2 is used for acquiring images of the other end of the aperture of the needle tube to be detected, and the light path adjustment device 4 is used for adjusting light beams passing through the images of the other end of the aperture of the needle tube to be detected.
The positioning device 3 comprises a base 31, a support column 32 and a correction device 33, wherein the support column 32 is arranged on the base 31, and the correction device 33 is arranged on the support column 32 and is used for correcting the position of the first image acquisition device 1. In some embodiments, the correction device 33 includes a first slider 331, a second slider 332, a third slider 333, an L-shaped plate 334, and a fourth slider 335. The sliding block comprises a sliding seat and a sliding block, a sliding groove is formed in the sliding seat, and the sliding block is slidably arranged on the sliding groove. One side of the first sliding block 331 is fixedly connected with the support column 32, the other side of the first sliding block 331 can slide relative to the support column 32, and the sliding direction of the first sliding block 331 is parallel to the direction of the base 31; the second sliding block 332 is disposed above the first sliding block 331, one side of the second sliding block 332 is connected to the sliding side of the first sliding block 331, the other side of the second sliding block 332 can slide relative to the sliding side of the first sliding block 331, and the sliding direction of the second sliding block 332 is parallel to the plane of the base 31 and perpendicular to the sliding direction of the sliding side of the first sliding block 331; the third sliding block 333 is disposed above the second sliding block 332, one side of the third sliding block 333 is connected to the sliding side of the second sliding block 332, the other side of the third sliding block 333 can slide relative to the sliding side of the second sliding block 332, and the sliding direction of the third sliding block 333 is parallel to the plane of the base 31 and perpendicular to the sliding direction of the sliding side of the second sliding block 332; one side of the L-shaped plate 334 is connected with the sliding side of the third sliding block 333, and the movable end of the L-shaped plate 334 is perpendicular to the sliding direction of the third sliding block 333; one side of the fourth sliding block 335 is connected to the movable end of the L-shaped plate 334, the other side of the fourth sliding block 335 can slide relative to the movable end of the L-shaped plate 334, and the sliding direction of the fourth sliding block 335 is perpendicular to the plane of the base 31.
The first image capturing device 1 comprises a first camera 101, a first coaxial light source 102 and a first lens 103. The first camera 101 is connected to a first coaxial light source 102, and the other end of the first coaxial light source 102 is connected to a first lens 103, and the three are coaxial. The light of the first coaxial light source 102 is emitted from the first lens 103 onto the needle tube to be detected, reflected by the needle tube to be detected, and then sequentially received by the first camera 101 through the first lens 103 and the first coaxial light source 102.
The first image pickup device 1 is connected to the sliding side of the fourth slider 335. In some embodiments, the optical axis of the first image capturing device 1 is perpendicular to the plane of the base 31. By adjusting the fourth slider 335, the height (i.e., Z-axis position) of the first image pickup device 1 can be corrected, then the third slider 333 is adjusted, the position of the first image pickup device 1 on the horizontal plane on the Y-axis is corrected, then the second slider 332 is adjusted, and the position of the first image pickup device 1 on the horizontal plane on the X-axis is corrected; after the second slider 332, the third slider 333, and the fourth slider 335 are adjusted, the first slider 331 is adjusted, and the Y-axis position of the first image capturing device 1 can be further fine-tuned after the position of the X, Y axis of the first image capturing device is corrected.
The second image capturing device 2 comprises a second camera 201, a second coaxial light source 202 and a second lens 203. The second camera 201 is connected to the second coaxial light source 202, and the other end of the second coaxial light source 202 is connected to the second lens 203, and the three are coaxial. The light of the second coaxial light source 202 is emitted from the second lens 203 onto the needle tube to be detected, reflected by the needle tube to be detected, and then sequentially received by the first camera 101 through the second lens 203 and the second coaxial light source 202.
The second image acquisition device 2 is arranged on the base 31, and the second image acquisition device 2 is coaxial with the light path adjusting device 4; the optical path of the second image acquisition device 2 is coaxial with the first image acquisition device 1 after being deflected by the optical path adjusting device 4. In some embodiments, the optical path adjusting device 4 is a prism, the prism is disposed directly under the first image capturing device 1, a detection space is formed between the prism and the first image capturing device 1, and an optical axis formed by the second image capturing device 2 and the prism is parallel to a plane on which the base 31 is located.
Preferably, the base 31 is provided with a chute 34, the prism is arranged in the chute 34, and the sliding direction is parallel to the sliding direction of the second sliding block; the second image acquisition device 2 is arranged on the base 31 through an adjustable seat 35, and the adjustable seat 35 is used for adjusting the horizontal position of the second image acquisition device 2 on the base 31.
In some embodiments, the first coaxial light source 102 and the second coaxial light source 202 each comprise a point light source, a convex lens, and a beam splitter; the spectroscope forms 45 degrees with the optical axis, the light emitted by the point light source forms parallel light through the convex lens to irradiate the spectroscope, and the parallel light is reflected to the first lens 103 or the second lens 203; the light reflected by the needle tube to be detected passes through the first lens 103 or the second lens 203, and then passes through the spectroscope to be received by the first camera 101 or the second camera 201.
In some embodiments, the flexible needle cannula detection system further comprises an external light source 5; the external light source 5 is arranged beside the positioning device and faces the detection space; preferably, the external light source 5 is a strip light source.
When the device is used, the needle tube to be detected is clamped in the detection space, the needle hole at one end of the needle tube to be detected is opposite to the first image acquisition device 1, and the needle hole at the other end is opposite to the second image acquisition device 2. The first coaxial light source 102, the second coaxial light source 202 and the external light source 5 are turned on. The light of the first coaxial light source 102 irradiates the needle tube to be measured through the first lens, and the light of the second coaxial light source 202 irradiates the needle tube to be measured through the second lens. Light reflected by one end of the needle tube to be detected is sequentially emitted into the first camera 101 through the first lens and the first coaxial light source 102; light reflected by the other end of the needle tube to be detected is sequentially emitted into the second camera 201 through the prism, the second lens and the second coaxial light source 202. Thereby realizing up-and-down detection of the needle tube to be detected.
According to the flexible needle tube detection system, the light path of the second image acquisition device 2 is coaxial with the first image acquisition device 1 after being turned through the light path adjusting device 4, so that the size and the position of the upper hole and the lower hole of the flexible needle tube can be detected simultaneously. By the correction device 33, the position of the first image pickup device 1 can be corrected accurately.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the spirit of the utility model, and the utility model is intended to encompass such modifications and improvements.
Claims (9)
1. A flexible needle cannula detection system, comprising: the device comprises a first image acquisition device, a second image acquisition device, a positioning device and a light path adjusting device; the positioning device comprises a base, a support column and a correction device, wherein the support column is arranged on the base, the correction device is arranged on the support column, and the first image acquisition device is arranged on the correction device; the light path of the second image acquisition device is coaxial with the first image acquisition device after being adjusted by the light path adjusting device.
2. A flexible needle cannula detection system as defined in claim 1, wherein: the first image acquisition device comprises a first camera, a first coaxial light source and a first lens; one end of the first coaxial light source is connected with the first camera, and the other end of the first coaxial light source is connected with the first lens; the second image acquisition device comprises a second camera, a second coaxial light source and a second lens; one end of the second coaxial light source is connected with the second camera, and the other end of the second coaxial light source is connected with the second lens.
3. A flexible needle cannula detection system as defined in claim 2, wherein: the correction device comprises a first sliding block, a second sliding block, a third sliding block, an L-shaped plate and a fourth sliding block; the first sliding block is fixedly connected with the support column, the second sliding block is arranged above the first sliding block, the third sliding block is arranged above the second sliding block, and one side of the L-shaped plate is connected with the third sliding block; the other side of the L-shaped plate is connected with the fourth sliding block, the sliding direction of the first sliding block is parallel to the plane where the base is located, and the sliding direction of the fourth sliding block is perpendicular to the plane where the base is located.
4. A flexible needle cannula detection system as defined in claim 3, wherein: the sliding direction of the second sliding block is parallel to the plane where the base is located and is perpendicular to the sliding direction of the first sliding block; the sliding direction of the third sliding block is parallel to the sliding direction of the first sliding block.
5. A flexible needle cannula detection system as defined in any of claims 1-4, wherein: the optical axis of the first image acquisition device is perpendicular to the plane where the base is located, and the light path adjusting device is arranged right below the first image acquisition device.
6. A flexible needle cannula detection system as defined in claim 5, wherein: the light path adjusting device is a prism.
7. A flexible needle cannula detection system as defined in claim 6, wherein: the base is provided with a chute, and the prism is arranged in the chute.
8. A flexible needle cannula detection system as defined in claim 7, wherein: the second image acquisition device is arranged on the base through an adjustable seat, and the optical axis of the second image acquisition device is parallel to the base.
9. A flexible needle cannula detection system as defined in claim 8, wherein: the positioning device also comprises an external light source, wherein the external light source is arranged beside the positioning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321947846.7U CN220625205U (en) | 2023-07-21 | 2023-07-21 | Flexible needle tube detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321947846.7U CN220625205U (en) | 2023-07-21 | 2023-07-21 | Flexible needle tube detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220625205U true CN220625205U (en) | 2024-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321947846.7U Active CN220625205U (en) | 2023-07-21 | 2023-07-21 | Flexible needle tube detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220625205U (en) |
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2023
- 2023-07-21 CN CN202321947846.7U patent/CN220625205U/en active Active
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