CN211696276U - Detection device - Google Patents
Detection device Download PDFInfo
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- CN211696276U CN211696276U CN201922258217.3U CN201922258217U CN211696276U CN 211696276 U CN211696276 U CN 211696276U CN 201922258217 U CN201922258217 U CN 201922258217U CN 211696276 U CN211696276 U CN 211696276U
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Abstract
A detection device comprises a positioning mechanism and a detection mechanism; the positioning mechanism comprises a base, wherein the base is provided with a bearing piece for bearing a product, so that a gap is formed between the product and the upper surface of the base; the detection mechanism comprises a light emitter, a light receiver and a detector, and the light receiver is electrically connected with the detector; the light emitted by the light emitter is transmitted to the light receiver through the gap, the light receiver transmits the received light to the detector, and the detector processes the received light to obtain a detection result. Compared with the prior art, the detection device is convenient and quick to operate and high in precision, and the defect of visual fatigue caused by repeated correction and observation in the traditional manual dial indicator measurement process is overcome.
Description
Technical Field
The utility model relates to a detection device.
Background
During the production process of the product, the product is easy to deform, such as the product bends upwards or downwards from the middle part, and the straightness of the product is beyond the error allowable range. For a product with strict requirement on straightness, the product needs to be shaped, and the straightness of the product needs to be detected before and after shaping so as to determine whether the product is in a control range. The existing detection is usually carried out by manually using a dial indicator, the numerical value of the dial indicator needs to be concerned all the time in the detection process, the visual fatigue is easy to cause, the efficiency is low, and errors exist frequently.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a detection apparatus capable of rapidly and automatically detecting the straightness of a product.
A detection device comprises a positioning mechanism and a detection mechanism;
the positioning mechanism comprises a base, wherein the base is provided with a bearing piece for bearing a product, so that a gap is formed between the product and the upper surface of the base;
the detection mechanism comprises a light emitter, a light receiver and a detector, and the light receiver is electrically connected with the detector;
the light emitted by the light emitter is transmitted to the light receiver through the gap, the light receiver transmits the received light to the detector, and the detector processes the received light to obtain a detection result.
Furthermore, the detection mechanism further comprises a display, and the display is electrically connected with the detector and used for displaying the detection result of the detector.
Further, the number of the bearing parts is two, the base comprises a detection part, the detection part is located between the two bearing parts, and the upper surface of the detection part is the upper surface of the base.
Further, the detection mechanism is an optical fiber sensor.
Furthermore, the detection mechanism also comprises two projection light pipes, one projection light pipe is connected with the light emitter to transmit the light emitted by the light emitter to the gap, and the other projection light pipe is connected with the light receiver to receive the light beam transmitted by the gap and transmit the light beam to the light receiver.
Furthermore, the positioning mechanism further comprises two fixing pieces, the two fixing pieces are respectively positioned on two sides of the gap, and the two light projecting tubes are respectively connected with the one fixing piece.
Further, the fixing piece is provided with connecting holes, and the ends of the light projecting tubes are respectively connected into the corresponding connecting holes.
Furthermore, the detection device comprises a plurality of detection mechanisms, the fixing piece is provided with a plurality of connecting holes arranged at intervals, and one connecting hole is connected with the end part of one light projecting tube.
Furthermore, a connecting piece is arranged on the surface of each connecting hole back to the gap, the connecting piece is provided with a threaded hole communicated with the connecting hole, and the end part of the light projecting tube is provided with an external thread in threaded connection with the threaded hole.
Further, the detecting device further includes a standard block, the standard block is provided with a first correcting surface and a second correcting surface, when the first correcting surface and the second correcting surface are both disposed on the bearing member, a first gap formed between the first correcting surface of the standard block and the upper surface of the base is not equal to a second gap formed between the second correcting surface of the standard block and the upper surface of the base, and both the first correcting surface and the second correcting surface are used for correcting the detector.
The utility model provides a detection device passes through positioning mechanism location product to and be formed with the clearance between the product, the light that sends through detection mechanism's light emitter transmits to light receiver through the clearance, light receiver will receive light transmission to detector, and the detector detects received light beam volume, detects the light beam volume that obtains according to the detector, reachs the testing result to the straightness accuracy that detects. In practical use, the straightness of the product can be automatically detected only by placing the product on the positioning mechanism. Compared with the prior art, the detection device is convenient and quick to operate and high in precision, and the defect of visual fatigue caused by repeated correction and observation in the traditional manual dial indicator measurement process is overcome.
Drawings
Fig. 1 is a schematic plan view of a detection mechanism of a detection device according to an embodiment of the present invention.
Fig. 2 is a perspective view of a positioning mechanism in the detecting device.
Fig. 3 is a partial perspective view of the positioning mechanism shown in fig. 2.
FIG. 4 is a schematic plan view of the base and product of the positioning mechanism of FIG. 2.
Fig. 5 is a perspective view of a standard block of the detection apparatus.
Fig. 6 is a perspective view of the detecting device.
Description of the main elements
Positive deviation indicating lamp 111
Negative deviation indicating lamp 113
Display 24
Fixing member 32
Connecting hole 321
Connecting piece 322
The following detailed description of the invention will be further described in conjunction with the above-identified drawings.
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 all belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following embodiments, features of the embodiments may be combined with each other without conflict.
Referring to fig. 1, fig. 2, fig. 3 and fig. 6, the present invention provides a detecting device 100, which includes a detecting mechanism 20 and a positioning mechanism 30.
The positioning mechanism 30 includes a base 31, and the base 31 is provided with a carrier 311 for carrying the product 200, so that a gap is formed between the product 200 and the upper surface of the base 31.
The detecting mechanism 20 includes a light emitter 21, a light receiver 22, and a detector 23, and the light receiver 22 is electrically connected to the detector 23.
The light emitted by the light emitter 21 is transmitted to the light receiver 22 through the gap, the light receiver 22 transmits the received light to the detector 23, and the detector 23 processes the received light to obtain a detection result.
When the product detecting device is used, the product 200 is placed on the bearing 311, and the detector 23 can judge the straightness of the gap according to the received light quantity.
Referring to fig. 1 to 6, in a preferred embodiment of the present invention, the detecting device 100 further includes a housing 10 and a standard block 40. The detecting mechanism 20 and the positioning mechanism 30 are disposed in the housing 10 and adjacent to each other.
The casing 10 is disposed around the detection device 100, and a plurality of other components are fixed in the casing 10. The casing 10 is provided with a display mechanism 11 and a power switch 12. The display mechanism 11 is located above the casing 10 and electrically connected to the detection mechanism 20, and the power switch 12 is located on the side of the casing 10 for switching on and off the detection device 100.
The display mechanism 11 is connected with the detection mechanism 20 and displays the data measured by the detection mechanism 20. The display mechanism 11 includes a positive deviation indicator 111, a pass indicator 112, and a negative deviation indicator 113, which are used to display whether the straightness of the product 200 is pass or not and the type of error, respectively. During operation, the positive deviation indicator lamp 111 is turned on when detecting that the product 200 has a positive deviation, the negative deviation indicator lamp 113 is turned on when detecting that the product 200 has a negative deviation, and the qualified indicator lamp 112 is turned on when detecting that the straightness of the product 200 is qualified.
In the present embodiment, the display mechanism 11 further includes a power indicator lamp 114. The power indicator 114 is used to indicate whether the detection apparatus 100 is powered on.
In this embodiment, the product 200 is an anisotropic long condition, and includes a detection surface 201, which is a surface of the product 200 to be tested for straightness. The detection surface 201 of the product 200 is placed on the base 31 with a gap from the base 31. In other embodiments of the present application, the shape of the product 200 is not limited as long as the product has the detection surface 201 to be measured for straightness.
The detection mechanism 20 further includes a display 24, a housing 25 and a light projecting pipe 26, the light emitter 21, the light receiver 22 and the detector 23 are all disposed in the housing 25, the display 24 is disposed on the surface of the housing 25, and the light projecting pipe 26 is communicated with the light emitter 21 and the light receiver 22 and communicated with the positioning mechanism 30.
The light emitted by the light emitter 21 is transmitted through the gap by the light projecting tube 26 and received by the light projecting tube 26 communicated with the corresponding light receiver 22, and the detector 23 can judge whether the straightness at the gap is qualified or not by comparing the value of the received light quantity with a qualified threshold value. The display 24 correspondingly displays the value measured by the detector 23 and the straightness qualified threshold value of the product 200 for comparison reference.
In particular, the detection mechanism 20 may be a fiber optic sensor that includes several elements within the detection mechanism 20 described above.
The positioning mechanism 30 further comprises two fixing members 32, and the two fixing members 32 are respectively arranged at two sides of the gap between the product 200 and the base 31; during the test, the product 200 is placed on the base 31 and clamped by the fixture 32.
In the present embodiment, the number of the carriers 311 is two, two carriers 311 are disposed on the upper surface of the base 31, and the two carriers 311 are used for carrying the product 200 at the same time.
In an embodiment, the base 31 further includes a detecting portion 312, the detecting portion 312 is located between the two bearing members 311, an upper surface of the detecting portion 312 is an upper surface of the base 31, and a gap is formed between the detecting portion 312 and the product 200. The upper surface of the detection portion 312 is regarded as an absolute plane. During the detection process, the light passes through the gap between the detection surface 201 and the detection part 312 to determine whether the straightness of the detection surface 201 is qualified.
The detection unit 312 is used to reduce the width of the gap to further improve the detection result.
It is understood that in other embodiments of the present application, the detection unit 312 may be omitted, and the detection surface 201 of the product 200 may be directly spaced from the upper surface of the base 31.
The fixing member 32 further includes a plurality of connecting holes 321 and connecting members 322, the plurality of connecting holes 321 are disposed through the fixing member 32 at positions adjacent to the gaps, and one connecting member 322 is correspondingly disposed on a side of each connecting hole 321 opposite to the gap.
Specifically, the connecting member 322 is provided with a threaded hole (not shown) communicating with the connecting hole 321, and the end of the projection tube 26 is provided with an external thread (not shown) threadedly coupled with the threaded hole. The external thread is rotated to enter the threaded hole, so that the light projecting tube 26 is fixed on the connecting piece 322, and the light projecting tube 26 can project light and receive light just opposite to the gap.
In this embodiment, the number of the detecting mechanism 20, the number of the connecting holes 321 and the number of the connecting pieces 322 are twelve, and the connecting holes 321 and the connecting pieces 322 are respectively arranged on two sides of the base 31 in a linear manner for detecting the straightness of twelve points of the detecting surface 201 of the product 200; in other embodiments, the arrangement may be selected according to the shape or actual condition of the product 200.
In the present embodiment, the standard gap value is 0.15mm, that is, in the detection flow of the present embodiment, the positive deviation of the default product 200 is less than 0.15mm, that is, the product is qualified; in other embodiments, the allowable positive deviation eligibility range may be selected based on the actual situation.
It is understood that the detection device 100 has a circuit therein for communicating a plurality of components. Through the circuit connection, when the power switch 12 is closed, the power indicator lamp 114 is turned on. Twelve sets of detection mechanisms 20. After the circuits are conducted, when all twelve point positions of the detection surface 201 detected by the twelve groups of detection mechanisms 20 are qualified, the circuits corresponding to the qualified indicator lamps 112 are always conducted, and the qualified indicator lamps 112 are lightened; when the detection surface 201 has positive deviation, the circuit corresponding to the positive deviation indicator lamp 111 is conducted, so that the positive deviation indicator lamp 111 is lighted; when a negative deviation exists on the detection surface 201, a circuit corresponding to the negative deviation indicating lamp 113 is conducted, so that the negative deviation indicating lamp 113 is lighted.
In one embodiment, the detection apparatus 100 further includes a standard block 40. One end of the standard block 40 is a first calibration surface 41, and the other end is a second calibration surface 42. The standard block 40 is used to put the detection device 100 in preference to the product 200, calibrate the detection threshold by detecting the straightness of the first correction surface 41, and test the performance of the detection mechanism 20 by detecting the straightness of the second correction surface 42.
Before the product 200 is detected by the detection device 100, the equipment is calibrated and tested by using the standard block 40, the first correction surface 41 of the standard block 40 is firstly placed in the positioning mechanism 30, and the measured value is the detection threshold value displayed on each display 24; at the same time, the qualified indicator lamp 112 is on. Then the second calibration surface 42 of the standard block 40 is placed in the positioning mechanism 30, and the measured values are displayed in the actual value areas of the displays 24; at the same time, the positive deviation indicator lamp 111 or the negative deviation indicator lamp 113 lights. The calibration and testing steps of the test apparatus 100 are completed.
In this embodiment, the first calibration surface 41 of the standard block 40 is actually a negative offset surface with two high ends and a low middle, and the difference is-0.05 mm, that is, in the detection flow of this embodiment, the negative offset of the default product 200 is less than or equal to 0.05mm, that is, the negative offset is qualified; the second calibration surface 42 of the standard block 40 is actually a negative offset surface with two higher ends and a lower middle, and the difference is-0.06 mm, namely, when the second calibration surface 42 is used for testing, the negative offset indicator light 113 is lighted. In other embodiments, the first calibration surface 41 and the second calibration surface 42 of the standard block 40 may have different offset values according to actual conditions, and the detecting apparatus 100 may also select different negative offset acceptable ranges.
Specifically, the detection device 100 completes the calibration and test through the standard block 40, and then the product 200 is placed, the light emitter 21 projects light to the light projecting tube 26, the detection mechanism 20 receives light from another light projecting tube 26 through the light receiver 22, detects the amount of light received, compares the amount of light received with the detection threshold value, thereby determining whether the straightness of the product 200 is qualified, and transmits a signal to the display mechanism 11, and the display mechanism 11 displays data for reference.
In the present embodiment, the detection mechanism 20 performs comparative analysis on twelve sets of light receiving amounts, that is, the straightness of the gap between the twelve different regions between the product 200 and the detection portion 312, which also represents the unevenness of the product 200 at twelve different positions; if at least one group of actual values exceed the detection threshold, the detection mechanism 20 judges that the product 200 has negative deviation and the negative deviation indicator light 113 is on; if at least one group of actual values is 0, namely at least one bulge of the product 200 contacts the detection part 312 of the base 31, the detection mechanism 20 judges that the product 200 is in positive deviation, and the positive deviation indicator lamp 111 is on; if all the actual values are greater than 0 and less than or equal to the detection threshold, the detection mechanism 20 judges that the product 200 is qualified, and the qualified indicator light 112 is on; each set of sensed values is displayed for reference on a corresponding display 24.
The utility model provides a detection device 100 passes through positioning mechanism 30 and fixes a position product 200 to and be formed with the clearance between the product, the light that sends through the light emitter 21 of detection mechanism 20 transmits to light receiver 22 through the clearance, and light receiver 22 transmits the light that receives to detector 23, and detector 23 detects received light beam volume, detects the light beam volume that obtains according to detector 23, reachs the testing result. In actual use, the straightness of the product 200 can be automatically detected by simply placing the product 200 on the positioning mechanism 30. Compared with the prior art, the detection device 100 is convenient and quick to operate and high in precision, and the defect of visual fatigue caused by repeated correction and observation in the traditional manual dial indicator measurement process is overcome.
It is understood that various other changes and modifications may be made by those skilled in the art based on the technical idea of the present invention, and all such changes and modifications should fall within the protective scope of the claims of the present invention.
Claims (10)
1. A detection device, characterized by: the detection device comprises a positioning mechanism and a detection mechanism;
the positioning mechanism comprises a base, wherein the base is provided with a bearing piece for bearing a product, so that a gap is formed between the product and the upper surface of the base;
the detection mechanism comprises a light emitter, a light receiver and a detector, and the light receiver is electrically connected with the detector;
the light emitted by the light emitter is transmitted to the light receiver through the gap, the light receiver transmits the received light to the detector, and the detector processes the received light to obtain a detection result.
2. The detection device of claim 1, wherein: the detection mechanism further comprises a display, and the display is electrically connected with the detector and used for displaying the detection result of the detector.
3. The detection device of claim 1, wherein: the bearing parts are two, the base comprises a detection part, the detection part is positioned between the two bearing parts, and the upper surface of the detection part is the upper surface of the base.
4. The detection device of claim 1, wherein: the detection mechanism is an optical fiber sensor.
5. The detection device of claim 1, wherein: the detection mechanism also comprises two projection light tubes, one projection light tube is connected with the light emitter to transmit the light emitted by the light emitter to the gap, and the other projection light tube is connected with the light receiver to receive the light beam transmitted by the gap and transmit the light beam to the light receiver.
6. The detection device of claim 5, wherein: the positioning mechanism further comprises two fixing pieces, the two fixing pieces are respectively positioned on two sides of the gap, and the two light projecting tubes are respectively connected with the fixing pieces.
7. The detection device of claim 6, wherein: the fixing piece is provided with connecting holes, and the end parts of the light projecting tubes are respectively connected into the corresponding connecting holes.
8. The detection device of claim 7, wherein: the detection device comprises a plurality of detection mechanisms, the fixing piece is provided with a plurality of connecting holes arranged at intervals, and one connecting hole is connected with the end part of one light projecting tube.
9. The detection device of claim 7, wherein: and the surface of each connecting hole back to the gap is provided with a connecting piece, the connecting piece is provided with a threaded hole communicated with the connecting hole, and the end part of the light projecting tube is provided with an external thread in threaded connection with the threaded hole.
10. The detection device of claim 1, wherein: the detection device further comprises a standard block, wherein the standard block is provided with a first correction surface and a second correction surface, when the first correction surface and the second correction surface are both arranged on the bearing part, a first gap formed between the first correction surface of the standard block and the upper surface of the base is not equal to a second gap formed between the second correction surface of the standard block and the upper surface of the base, and the first correction surface and the second correction surface are both used for correcting the detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922258217.3U CN211696276U (en) | 2019-12-16 | 2019-12-16 | Detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922258217.3U CN211696276U (en) | 2019-12-16 | 2019-12-16 | Detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211696276U true CN211696276U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922258217.3U Active CN211696276U (en) | 2019-12-16 | 2019-12-16 | Detection device |
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|---|---|
| CN (1) | CN211696276U (en) |
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2019
- 2019-12-16 CN CN201922258217.3U patent/CN211696276U/en active Active
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Address after: 030032 No.1 Longfei street, Taiyuan Economic and Technological Development Zone, Shanxi Province Patentee after: Fulian Technology (Shanxi) Co.,Ltd. Address before: 030032 No.1 Longfei street, Taiyuan Economic and Technological Development Zone, Shanxi Province Patentee before: SHANXI YUDING PRECISION TECHNOLOGY CO.,LTD. |