CN117969516A - Optical detection device for material test block - Google Patents
Optical detection device for material test block Download PDFInfo
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- CN117969516A CN117969516A CN202410361613.1A CN202410361613A CN117969516A CN 117969516 A CN117969516 A CN 117969516A CN 202410361613 A CN202410361613 A CN 202410361613A CN 117969516 A CN117969516 A CN 117969516A
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- test block
- dust
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- 238000012360 testing method Methods 0.000 title claims abstract description 118
- 238000001514 detection method Methods 0.000 title claims abstract description 114
- 239000000463 material Substances 0.000 title claims abstract description 75
- 230000003287 optical effect Effects 0.000 title claims abstract description 25
- 238000004140 cleaning Methods 0.000 claims abstract description 151
- 239000000428 dust Substances 0.000 claims abstract description 132
- 238000007664 blowing Methods 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims description 58
- 230000003068 static effect Effects 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 7
- 238000007689 inspection Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 241001417527 Pempheridae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Optical Measuring Cells (AREA)
Abstract
The invention relates to an optical detection device for a material test block, belongs to the technical field of material detection, and solves the problem that dust in air falls on the surface of the test block before the material test block is detected in the prior art, so that detection accuracy is affected. The detection device comprises a base, a housing, a driving unit, a detection unit and a dust removing mechanism, wherein the housing is arranged on the base, the driving unit is arranged on the housing, the detection unit is arranged on the driving unit, the driving unit is used for driving the detection unit to carry out optical detection on a material test block, and the dust removing mechanism can be linked with the detection unit and carry out dust removing and cleaning operation on the material test block. The invention can simultaneously link the detection unit, the cleaning unit, the dust blowing unit and the dust collection unit, and ensure the cleaning of the surface of the material test block and the detection device; the cleaning unit, the dust blowing unit and the dust collection unit can automatically keep static immediately, so that a quiet detection environment is provided for detection operation, and the detection quality is ensured.
Description
Technical Field
The invention belongs to the technical field of material detection, and particularly relates to an optical detection device for a material test block.
Background
For the detection of materials, the materials are usually made into test blocks according to the requirements of detection equipment, and then are detected by optical detection equipment, wherein the equipment usually consists of an optical microscope, an image processing system and a computer control system. During detection, a material test block to be detected needs to be placed on a detection platform, and then an optical detection instrument is used for collecting and recording the reflection of the material test block.
The existing optical detection equipment removes dust before detecting the material test block, and then places the test block in a detection area. At this time, dust in the air still possibly falls on the surface of the test block, so that the detection precision is affected, the detection result is finally offset, and in the detection process, dust is sometimes attached to the lens, so that the final image acquisition definition is affected.
There is therefore an urgent need for an optical detection device for a test block of material to solve the above-mentioned problems.
Disclosure of Invention
In view of the above analysis, an embodiment of the present invention is to provide an optical detection device for a material test block, which solves the problem in the prior art that dust in air falls onto a surface of a test block before the material test block is detected, thereby affecting detection accuracy.
The aim of the invention is mainly realized by the following technical scheme:
The optical detection device for the material test block comprises a base, a housing, a driving unit, a detection unit and a dust removing mechanism, wherein the housing is arranged on the base, the driving unit is arranged on the housing, the detection unit is arranged on the driving unit, the driving unit is used for driving the detection unit to carry out optical detection on the material test block, and the dust removing mechanism can be linked with the detection unit and carry out dust removing and cleaning operation on the material test block;
The driving unit comprises a motor, a lead screw and a guide rod, the lead screw is connected with the motor, the motor can drive the lead screw to rotate forwards or backwards, and the guide rod is arranged on the housing; the guide rod is provided with guide threads;
The detection unit comprises a detector, a detector seat and a supporting structure, wherein the detector is arranged on the detector seat, the detector seat is in threaded connection with the lead screw and is connected with the guide rod, and the lead screw can drive the detector seat to reciprocate along the guide rod; the support structure includes a connecting rod disposed on a sidewall of the detector;
The dust removing mechanism comprises the dust blowing unit; the dust blowing unit comprises a first fan, a transmission rotor and a belt; the first fan is rotationally connected with the connecting rod; the transmission rotor is rotationally connected with the detector seat and is in threaded connection with the guide rod; the belt is used for connecting the first fan and the transmission rotor; when the detection unit reciprocates, the transmission rotor can be driven to rotate by the guide screw thread, and the first fan is driven by the belt to rotate and blow off dust on the surface of the material test block; when the detecting unit stops moving, the first fan can stop rotating immediately, so that vibration of the detecting unit caused by rotation of the first fan is prevented, and vibration of a material test block caused by airflow is prevented.
Further, the housing comprises a positioning groove which is parallel to the screw rod and is arranged on the inner wall of the housing; the supporting structure further comprises a positioning block and a vertical rod, the positioning block is arranged at one end of the connecting rod, and the vertical rod is arranged on the positioning block; the vertical rod can be connected with the positioning groove and can slide along the positioning groove.
Further, the dust removing mechanism further comprises a cleaning unit, the cleaning unit comprises a cleaning support and a cleaning part, and the cleaning part is connected with the positioning block through the cleaning support.
Further, the cleaning part comprises a first cleaning brush and a second cleaning brush, and the first cleaning brush and the second cleaning brush are perpendicular to the screw rod; the distance between the first brush and the detector is greater than the distance between the second brush and the detector; the density of bristles of the first brush is less than the density of bristles of the second brush; the first cleaning brush and the second cleaning brush are used for cleaning dust on the surface of the material test block.
Further, the dust removing mechanism further comprises a test block seat, the test block seat comprises a supporting shell, a supporting rod, dust collection holes, a second fan and a transmission gear, the supporting shell is fixedly connected with the base through the supporting rod, the dust collection holes are formed in the supporting shell, the second fan is fixedly connected with the transmission gear, the second fan and the transmission gear are both rotationally connected with the supporting rod, and the transmission gear can drive the second fan to rotate around the supporting rod, so that negative pressure is generated in the supporting shell, and dust is sucked into the test block seat through the dust collection holes.
Further, the dust removing mechanism further comprises a dust collecting transmission assembly, the dust collecting transmission assembly comprises a first toothed plate, a connecting assembly and a second toothed plate, the connecting assembly is connected with the cleaning unit, and the first toothed plate and the second toothed plate are connected through the connecting assembly; the first toothed plate and the second toothed plate are used for driving the transmission gear.
Further, the dust collection transmission assembly further comprises a reversing mechanism and a guiding mechanism, wherein the reversing mechanism comprises a first reversing block and a second reversing block, and the first reversing block and the second reversing block are fixedly arranged on the base; the guide mechanism comprises a first limit guide rail, a second limit guide rail, a first guide groove and a second guide groove, and the first limit guide rail and the second limit guide rail are arranged on the base; the first guide groove is formed in the first toothed plate, the second guide groove is formed in the second toothed plate, and the first limit guide rail, the second limit guide rail, the first guide groove and the second guide groove are parallel to the screw rod.
Further, still include the clear unit of camera lens, the clear unit of camera lens includes cleaning brush, cleaning brush seat, rotatory connecting rod and piston board, rotatory connecting rod with cleaning brush seat threaded connection, rotatory connecting rod one end with cleaning brush fixed connection, rotatory connecting rod the other end with the piston board rotates to be connected, the outer wall of piston board with the inner wall of cleaning brush seat is connected.
Further, the lens cleaning unit further comprises an air bag, a vertical pipe, an adapter seat and a transverse pipe, wherein the air bag is communicated with the adapter seat through the vertical pipe, one end of the transverse pipe is connected with the adapter seat, and the other end of the transverse pipe is connected with the cleaning brush seat; when the detection unit moves towards one end of the screw rod, the detector seat can be connected with the air bag and continuously extrude the air bag, and air in the air bag is conveyed into the cleaning brush seat sequentially through the vertical pipe, the adapter seat and the transverse pipe, so that the piston plate is pushed to move towards a direction away from the base.
Compared with the prior art, the invention has at least one of the following beneficial effects:
(1) The testing device is simple to control and high in automation degree. The testing device can drive the detection unit, the cleaning unit, the dust blowing unit and the dust collection unit simultaneously only by means of the unique power of the driving unit, and the cleaning unit, the dust blowing unit and the dust collection unit can be automatically linked with the detection unit without manual intervention; along with the movement of the detection unit to the direction of the test block, the test device can sequentially clean and blow dust on the surface of the test block, and simultaneously perform dust collection operation, thereby ensuring the cleaning of the surface of the material test block and the detection device; when the detection unit stops moving and detects, the cleaning unit, the dust blowing unit and the dust collection unit can automatically keep static immediately, so that a quiet detection environment is provided for detection operation, and the detection quality is ensured;
(2) The density of the bristles of the first cleaning brush of the testing device is smaller than that of the bristles of the second cleaning brush; the first cleaning brush is used for cleaning large-particle dust, and the second cleaning brush is used for cleaning small-particle dust;
(3) When the detection unit of the testing device reciprocates, the transmission rotor can be driven to rotate by the guide screw thread on the guide rod, and the first fan is driven by the belt to rotate and generate air flow, and the air flow can blow dust on the surface of the material test block off the surface of the material test block; when the detection unit stops moving, the first fan can stop rotating immediately, so that the vibration of the detection unit caused by the rotation of the first fan is prevented, the vibration of the material test block caused by air flow is prevented, and the error in the detection process is avoided;
(4) When the dust collection transmission component of the testing device reciprocates in the testing unit, the dust collection transmission component can transmit the motion to the test block seat, and the dust cleaned by the cleaning unit from the surface of the material test block and the dust blown off by the dust blowing unit are absorbed, so that the detecting device of the embodiment does not have dust any more, and the detecting quality is ensured;
(5) The lens cleaning unit of the testing device can automatically clean the lens when the detection unit moves to one end of the driving unit.
In the invention, the above technical schemes can be mutually combined to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, like reference numerals being used to designate like parts throughout the drawings;
FIG. 1 is a schematic diagram of the overall structure of a detection device according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of the detecting device of the present invention;
FIG. 3 is a schematic diagram of the overall structure of the dust removing mechanism;
FIG. 4 is a schematic view of the longitudinal section of the housing;
FIG. 5 is a schematic view of a longitudinal section of the dust removing mechanism and the lens cleaning unit;
FIG. 6 is an enlarged schematic view of the portion A in FIG. 5;
fig. 7 is an enlarged schematic view of the portion B in fig. 5.
Reference numerals:
1-a base; 2-a housing; a 3-drive unit; a 4-detection unit; 5-a cleaning unit; 6-dust blowing unit; 7-a test block seat; 8-dust collection transmission assembly; 9-a lens cleaning unit; 21-a positioning groove; 31-an electric motor; 32-screw rod; 33-a guide bar; 41-a detector; 42-a detector mount; 43-connecting rod; 44-positioning blocks; 45-vertical rods; 51-cleaning a bracket; 52-a first cleaning brush; 53-a second sweeper brush; 61-a first fan; 62-a drive rotor; 63-a belt; 71-a support shell; 72-supporting rods; 73-dust collection holes; 74-a second fan; 75-a transmission gear; 76-a block chuck; 77-an activated carbon layer; 81-a first toothed plate; 82-a connection assembly; 83-a second toothed plate; 84-a first commutation block; 85-a second commutation block; 86-a second curb rail; 87-a second guide groove; 91-cleaning brush; 92-cleaning a brush holder; 93-rotating the connecting rod; 94-a piston plate; 95-balloon; 96-riser; 97-adapter; 98-horizontal tube; 99-springs; 821-cross bar.
Detailed Description
The following detailed description of preferred embodiments of the invention is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the invention, are used to explain the principles of the invention and are not intended to limit the scope of the invention.
In one embodiment of the present invention, as shown in fig. 1 and 2, an optical inspection device (hereinafter referred to as inspection device) for a material test block is disclosed, which comprises a base 1, a housing 2, a driving unit 3, an inspection unit 4, and a dust removing mechanism, wherein the housing 2 is disposed on the base 1, the driving unit 3 is disposed on the housing 2, the inspection unit 4 is disposed on the driving unit 3, the driving unit 3 is used for driving the inspection unit 4 to optically inspect a surface defect of the material test block, and the dust removing mechanism can be linked with the inspection unit 4 and perform dust removing cleaning operation on the material test block.
Preferably, as shown in fig. 3, the driving unit 3 includes a motor 31 and a screw 32, the screw 32 is connected to the motor 31, and the motor 31 can rotate forward or backward and drive the screw 32 to rotate forward or backward.
Preferably, the drive unit 3 further comprises a guide bar 33, the guide bar 33 being provided on the housing 2. The detecting unit 4 includes a detector 41 and a detector holder 42, the detector 41 is disposed on the detector holder 42, the detector holder 42 is screwed with the lead screw 32 and is connected with the guide rod 33, and the lead screw 32 can drive the detector holder 42 to reciprocate linearly along the guide rod 33, thereby driving the detector 41 to reciprocate. The detector 41 includes a lens provided at one end of the detector 41.
Preferably, the number of the guide rods 33 is two, and two ends of the detector seat 42 are respectively connected with one guide rod 33.
Preferably, as shown in fig. 3 and 4, the housing 2 includes a positioning groove 21, and the positioning groove 21 is provided on an inner wall of the housing 2 in parallel with the screw 32. The detecting unit 4 further comprises a supporting structure, the supporting structure comprises a connecting rod 43, a positioning block 44 and a vertical rod 45, the connecting rod 43 is arranged on the side wall of the detector 41, the positioning block 44 is arranged at one end of the connecting rod 43, and the vertical rod 45 is arranged on the positioning block 44. The vertical rod 45 is connected to the positioning groove 21 and is slidable along the positioning groove 21. The support structure is used for supporting the detector 41, and preventing the detector 41 from shaking during movement.
Preferably, the positioning slots 21 are two, namely a first positioning slot and a second positioning slot, the vertical rods 45 are two, namely a first vertical rod and a second vertical rod, the first vertical rod and the second vertical rod are arranged at two ends of the positioning block 44, the first vertical rod can be connected with the first positioning slot, and the second vertical rod can be connected with the second positioning slot. Further, the two support structures are respectively arranged at two sides of the detector 41, so that the support structures can provide more stable support for the detector 41.
In order to clean the material test block and prevent an error from occurring in optical detection, preferably, as shown in fig. 2, the dust removing mechanism includes a cleaning unit 5, a dust blowing unit 6, and a dust collecting unit, both of which are disposed on the detecting unit 4, and the dust collecting unit is disposed on the base 1. The cleaning unit 5, the dust blowing unit 6 and the dust collection unit can be linked with the detection unit 4 and automatically perform cleaning operation on the material test block.
Preferably, as shown in fig. 3, the cleaning unit 5 includes a cleaning holder 51 and a cleaning portion connected to the detection unit 4 through the cleaning holder 51, specifically, the cleaning portion is connected to the positioning block 44 through the cleaning holder 51. The detection unit 4 can drive the cleaning unit 5 to move, and the cleaning part can clean the surface of the material block before the detector 41 reaches the upper part of the material block.
Preferably, the cleaning portion includes a first cleaning brush 52 and a second cleaning brush 53, the first cleaning brush 52 and the second cleaning brush 53 being disposed perpendicular to the screw 32. The distance between the first brush 52 and the detector 41 is greater than the distance between the second brush 53 and the detector 41. The density of bristles of the first brush 52 is less than the density of bristles of the second brush 53. The first cleaning brush 52 is used for cleaning large particle dust, and the second cleaning brush 53 is used for cleaning small particle dust.
Preferably, there are two cleaning units 5, namely a first cleaning unit and a second cleaning unit, which are respectively disposed at two sides of the detecting unit 4, and one cleaning unit 5 can clean the surface of the material test block before the detector 41 reaches the upper part of the material test block when the detecting unit 4 performs reciprocating detection.
Preferably, as shown in fig. 3 and 4, the guide bar 33 is provided with guide screw threads. The dust blowing unit 6 comprises a first fan 61, a transmission rotor 62 and a belt 63. The first fan 61 is provided on the connection rod 43 and is rotatable about the connection rod 43; the transmission rotor 62 is rotatably connected with the detector seat 42 and is in threaded connection with the guide rod 33; a belt 63 is used to connect the first fan 61 and the driving rotor 62. When the detecting unit 4 reciprocates, the transmission rotor 62 can be driven to rotate by the guide screw thread on the guide rod 33, and the belt 63 drives the first fan 61 to rotate, so that the first fan 61 generates air flow, and the air flow can blow dust on the surface of the material test block off the surface of the material test block; when the detecting unit 4 stops moving, the first fan 61 can also stop rotating, so that the detecting unit 4 is prevented from vibrating due to the rotation of the first fan 61, and the material test block is prevented from vibrating due to air flow, and errors in the detecting process are avoided.
Preferably, the number of the dust blowing units 6 is two, namely a first dust blowing unit and a second dust blowing unit, the first dust blowing unit and the second dust blowing unit are respectively arranged at two sides of the detection unit 4, and when the detection unit 4 performs reciprocating detection, one dust blowing unit 6 can perform dust blowing operation on the surface of the material test block before the detector 41 reaches the upper part of the material test block.
Preferably, as shown in fig. 2, the dust collection unit comprises a test block seat 7 and a dust collection transmission assembly 8, wherein the test block seat 7 is arranged on the base 1, and the dust collection transmission assembly 8 is connected with the test unit 4 through the cleaning unit 5. When the test unit 4 reciprocates, the dust collection transmission assembly 8 can transmit motion to the test block seat 7, and can absorb dust cleaned by the cleaning unit 5 from the surface of the material test block and dust blown off from the surface of the material test block by the dust blowing unit 6, so that the possibility that the dust falls on the surface of the material test block is reduced, and the detection quality is ensured.
Preferably, as shown in fig. 5 and 6, the test block seat 7 includes a supporting shell 71, a supporting rod 72, a dust collection hole 73, a second fan 74 and a transmission gear 75, the supporting shell 71 is fixedly connected with the base 1 through the supporting rod 72, the dust collection hole 73 is arranged at the connection end of the supporting shell 71 and the material test block, the second fan 74 is fixedly connected with the transmission gear 75, the second fan 74 and the transmission gear 75 are both rotationally connected with the supporting rod 72, and the transmission gear 75 can drive the second fan 74 to rotate around the supporting rod 72, so that negative pressure is generated in the supporting shell 71, and dust is sucked into the test block seat 7 through the dust collection hole 73.
Preferably, the block holder 7 further includes a block chuck 76, the block chuck 76 being provided on the support housing 71. The test block chuck 76 is used for placing a material test block, and the inner molded surface of the test block chuck 76 is identical to the outer molded surface of the material test block, so that the material test block is ensured to be placed stably, and the material test block is prevented from shaking during detection, and the detection quality is influenced.
Preferably, the test block holder 7 further includes an activated carbon layer 77, and the activated carbon layer 77 is disposed on an inner wall of the support case 71. The activated carbon layer 77 is used for adsorbing dust, preventing the dust from escaping from the test block seat 7 and falling onto the material test block, thereby affecting the accuracy of detection and improving the detection quality.
Preferably, the second fan 74 is a propeller fan, and in order to maintain the negative pressure in the test block holder 7 at all times, it is necessary that the rotation direction of the second fan 74 is kept unchanged. The dust collection transmission assembly 8 comprises a first toothed plate 81, a connecting assembly 82 and a second toothed plate 83, wherein the connecting assembly 82 is connected with the cleaning support 51, and the first toothed plate 81 and the second toothed plate 83 are connected through the connecting assembly 82. When the test unit 4 moves, the cleaning unit 5 can drive the connecting component 82 to move, and the connecting component 82 drives the first toothed plate 81 and the second toothed plate 83 to synchronously move in the same direction; at this time, the first toothed plate 81 is connected with the transmission gear 75, and the transmission gear 75 drives the second fan 74 to rotate around the support rod 72; when the test unit 4 moves reversely, the second toothed plate 83 is connected with the transmission gear 75, the transmission gear 75 drives the second fan 74 to rotate around the support rod 72, and the rotation direction of the second fan 74 is unchanged all the time.
In order to switch the connection of the first and second toothed plates 81, 83 to the transmission gear 75, it is preferable that the connection assembly 82 includes a first upright, a second upright, and a cross bar 821, the cross bar 821 is slidably connected to the cleaning support 51, the first toothed plate 81 is connected to one end of the cross bar 821 through the first upright, and the second toothed plate 83 is connected to the other end of the cross bar 821 through the second upright. The first toothed plate 81 and the second toothed plate 83 can slide on the cleaning carriage 51 in a direction perpendicular to the screw shaft 32 by the connection assembly 82, so that the connection of the first toothed plate 81, the second toothed plate 83 and the transmission gear 75 can be switched.
Preferably, the dust collection transmission assembly 8 further comprises a reversing mechanism, the reversing mechanism comprises a first reversing block 84 and a second reversing block 85, and the first reversing block 84 and the second reversing block 85 are fixedly arranged on the base 1. When the detection unit 4 leaves the test block seat 7 and moves towards the direction of the first reversing block 84, the first toothed plate 81 can be connected with the side wall of the first reversing block 84, the detection unit 4 continues to move, the first toothed plate 81 is extruded by the first reversing block 84 and is connected with the transmission gear 75, and the second toothed plate 83 is separated from the transmission gear 75; when the detection unit 4 leaves the test block seat 7 and moves towards the direction of the second reversing block 85, the second toothed plate 83 can be connected with the side wall of the second reversing block 85, the detection unit 4 continues to move, the second toothed plate 83 is extruded by the second reversing block 85 and is connected with the transmission gear 75, and the first toothed plate 81 is separated from the transmission gear 75.
Preferably, in order to prevent the first toothed plate 81 or the second toothed plate 83 from being separated from the transmission gear 75, the dust collection transmission assembly 8 further comprises a guiding mechanism, wherein the guiding mechanism comprises a first limit rail (not shown in the figure), a second limit rail 86, a first guiding groove and a second guiding groove 87, and the first limit rail and the second limit rail 86 are identical in structure and are both arranged on the base 1; the first guide groove is provided on the first toothed plate 81, the second guide groove 87 is provided on the second toothed plate 83, and the first limit rail, the second limit rail 86, the first guide groove and the second guide groove 87 are all parallel to the screw 32.
When the first toothed plate 81 is connected with the transmission gear 75, the first limiting guide rail can be connected with the side wall of the first toothed plate 81, the first limiting guide rail can prevent the first toothed plate 81 from being separated from the transmission gear 75, meanwhile, the second limiting guide rail 86 is connected with the second guide groove 87, the second toothed plate 83 can slide along the second limiting guide rail 86, and the second limiting guide rail 86 can prevent the second toothed plate 83 from being connected with the transmission gear 75; when the second toothed plate 83 is connected with the drive gear 75, the second spacing rail 86 is connected with the side wall of the second toothed plate 83, the second spacing rail 86 can prevent the second toothed plate 83 from being separated from the drive gear 75, and simultaneously, the first spacing rail is connected with the first guide groove, the first toothed plate 81 can slide along the first spacing rail, and the first spacing rail can prevent the first toothed plate 81 from being connected with the drive gear 75.
The testing device of the embodiment can drive the detection unit 4, the cleaning unit 5, the dust blowing unit 6 and the dust collection unit simultaneously by only the unique power of the driving unit 3, and the cleaning unit 5, the dust blowing unit 6 and the dust collection unit do not need manual intervention and can be automatically linked with the detection unit 4, before the detection unit 4 detects, the cleaning and dust blowing operation can be sequentially carried out on the surface of the test block along with the movement of the detection unit 4 to the direction of the test block, and meanwhile, the dust collection operation is carried out, so that the cleaning of the surface of the material test block and the detection device is ensured; when the detection unit 4 stops moving and detects, the cleaning unit 5, the dust blowing unit 6 and the dust collecting unit can all automatically and immediately keep still, thereby providing a quiet detection environment for detection operation and ensuring detection quality. The testing device is simple to control and high in automation degree.
Preferably, in order to clean the lens of the detector 41 at the detected gap, the detecting device of the present embodiment further includes a lens cleaning unit 9 as shown in fig. 2, the lens cleaning unit 9 being disposed at one end of the base 1. The lens cleaning unit 9 is used to automatically clean the lens when the detecting unit 4 moves to one end of the driving unit 3.
Preferably, as shown in fig. 5 and 7, the lens cleaning unit 9 includes a cleaning brush 91 and a cleaning brush holder 92, the cleaning brush 91 is rotatably connected to the cleaning brush holder 92, and the cleaning brush holder 92 is fixedly provided on the base 1. The cleaning brush 91 is rotatable and wipes the cleaning lens.
Preferably, in order to drive the cleaning brush 91 to rotate, the lens cleaning unit 9 further includes a rotation link 93, a piston plate 94, and a pneumatic mechanism. The cleaning brush holder 92 is a cylindrical cleaning brush holder, and one end far from the base 1 is closed. The rotary connecting rod 93 is in threaded connection with the cleaning brush seat 92, one end of the rotary connecting rod 93 is fixedly connected with the cleaning brush 91, the other end of the rotary connecting rod 93 is in rotary connection with the piston plate 94, and the outer wall of the piston plate 94 is connected with the inner wall of the cleaning brush seat 92. The pneumatic mechanism is used for inflating the cleaning brush seat 92 so as to push the piston plate 94 to move, the piston plate 94 drives the rotary connecting rod 93 to extend out of the cleaning brush seat 92 and rotate simultaneously, the cleaning brush 91 is pushed to the lens by the rotary connecting rod 93, meanwhile, the cleaning brush 91 rotates to clean the surface of the lens, dust at the lens is removed, the detection accuracy is improved, and the working quality of the detection device is improved.
Preferably, the pneumatic mechanism comprises an air bag 95, a vertical pipe 96, an adapter 97 and a transverse pipe 98, wherein the air bag 95 is communicated with the adapter 97 through the vertical pipe 96, one end of the transverse pipe 98 is connected with the adapter 97, and the other end of the transverse pipe 98 is connected with the cleaning brush base 92. When the detecting unit 4 moves toward one end of the screw rod 32, the detector seat 42 can be connected with the air bag 95 and continuously squeeze the air bag 95, and air in the air bag 95 is sequentially conveyed into the cleaning brush seat 92 through the vertical pipe 96, the adapter 97 and the transverse pipe 98, so that the piston plate 94 is pushed to move in a direction away from the base 1.
Preferably, the lens cleaning unit 9 further includes a spring 99, one end of the spring 99 is connected to the inner wall of the cleaning brush holder 92, the other end of the spring 99 is connected to the piston plate 94, and the spring 99 is used for driving the piston plate 94 to move toward the base 1. When the detection unit 4 moves in the direction of the material block, the detector seat 42 is disengaged from the air bag 95, and the spring 99 urges the piston plate 94 in the direction of the base 1 and conveys air back to the air bag 95.
Preferably, the number of the lens cleaning units 9 is two, namely a first lens cleaning unit and a second lens cleaning unit, which are respectively arranged at two ends of the base 1, and when the detecting unit 4 moves to any one end of the screw rod 32, one lens cleaning unit 9 can clean the lens.
Compared with the prior art, the testing device of the embodiment can drive the detection unit 4, the cleaning unit 5, the dust blowing unit 6 and the dust collection unit simultaneously by only the unique power of the driving unit 3, and the cleaning unit 5, the dust blowing unit 6 and the dust collection unit can be automatically linked with the detection unit 4 without manual intervention, and before the detection unit 4 detects, the cleaning and dust blowing operation can be sequentially carried out on the surface of a test block along with the movement of the detection unit 4 to the direction of the test block, and meanwhile, the dust collection operation is carried out, so that the cleaning of the surface of a material test block and the testing device is ensured; when the detection unit 4 stops moving and detects, the cleaning unit 5, the dust blowing unit 6 and the dust collection unit can automatically and immediately keep still, so that a quiet detection environment is provided for detection operation, and the detection quality is ensured; the testing device is simple to control and high in automation degree; the density of bristles of the first brush 52 is less than the density of bristles of the second brush 53; the first cleaning brush 52 is used for cleaning large particle dust, and the second cleaning brush 53 is used for cleaning small particle dust.
When the detecting unit 4 reciprocates, the transmission rotor 62 can be driven to rotate by the guide screw thread on the guide rod 33, and the belt 63 drives the first fan 61 to rotate, so that the first fan 61 generates air flow, and the air flow can blow dust on the surface of the material test block off the surface of the material test block; when the detecting unit 4 stops moving, the first fan 61 can also stop rotating immediately, so that the detecting unit 4 is prevented from vibrating due to the rotation of the first fan 61, and the material test block is prevented from vibrating due to air flow, and errors in the detecting process are avoided; when the test unit 4 reciprocates, the dust collection transmission assembly 8 can transmit the motion to the test block seat 7, and the dust cleaned by the cleaning unit 5 from the surface of the material test block and the dust blown off from the surface of the material test block by the dust blowing unit 6 are absorbed, so that the detection device of the embodiment has no dust any more, and the detection quality is ensured; the lens cleaning unit 9 is used to automatically clean the lens when the detecting unit 4 moves to one end of the driving unit 3.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.
Claims (10)
1. An optical detection device for a material test block is characterized by comprising a base (1), a housing (2), a driving unit (3), a detection unit (4) and a dust removing mechanism, wherein the housing (2) is arranged on the base (1), the driving unit (3) is arranged on the housing (2), the detection unit (4) is arranged on the driving unit (3), the driving unit (3) is used for driving the detection unit (4) to optically detect the material test block, and the dust removing mechanism can be linked with the detection unit (4) and is used for carrying out dust removing and cleaning operations on the material test block;
the driving unit (3) comprises a screw (32) and a guide rod (33), and the screw (32) and the guide rod (33) are respectively arranged on the housing (2); the guide rod (33) is provided with guide threads;
the detection unit (4) comprises a detector (41), a detector seat (42) and a supporting structure, wherein the detector (41) is arranged on the detector seat (42), the detector seat (42) is connected with the driving unit (3), and the driving unit (3) can drive the detector seat (42) to reciprocate in a linear mode; the support structure comprises a connecting rod (43), the connecting rod (43) being arranged on a side wall of the detector (41);
The dust removing mechanism comprises a dust blowing unit (6); the dust blowing unit (6) comprises a first fan (61), a transmission rotor (62) and a belt (63); the first fan (61) is rotationally connected with the connecting rod (43); the transmission rotor (62) is rotationally connected with the detector seat (42) and is in threaded connection with the guide rod (33); the belt (63) is used for connecting the first fan (61) and the transmission rotor (62); when the detection unit (4) reciprocates, the transmission rotor (62) can be driven to rotate by the guide screw thread, and the belt (63) drives the first fan (61) to rotate so as to blow off dust on the surface of the material test block; when the detection unit (4) stops moving, the first fan (61) can stop rotating, so that the detection unit (4) is prevented from vibrating due to the rotation of the first fan (61), and the material test block is prevented from vibrating due to air flow.
2. The optical detection device for a material test block according to claim 1, further comprising a lens cleaning unit (9), wherein the lens cleaning unit (9) comprises a cleaning brush (91), a cleaning brush seat (92), a rotary connecting rod (93), a piston plate (94) and a pneumatic mechanism, the rotary connecting rod (93) is in threaded connection with the cleaning brush seat (92), one end of the rotary connecting rod (93) is fixedly connected with the cleaning brush (91), the other end of the rotary connecting rod (93) is in rotary connection with the piston plate (94), and the outer wall of the piston plate (94) is connected with the inner wall of the cleaning brush seat (92); the pneumatic mechanism is used for inflating the cleaning brush seat (92) so as to push the piston plate (94) to move, and the piston plate (94) drives the rotary connecting rod (93) to extend out of the cleaning brush seat (92) and rotate simultaneously.
3. The optical detection device for a material test block according to claim 2, wherein the pneumatic mechanism comprises an air bag (95), a vertical pipe (96), an adapter seat (97) and a transverse pipe (98), the air bag (95) is communicated with the adapter seat (97) through the vertical pipe (96), one end of the transverse pipe (98) is connected with the adapter seat (97), and the other end of the transverse pipe (98) is connected with the cleaning brush seat (92); when the detection unit (4) moves towards one end of the screw rod (32), the detector seat (42) can be connected with the air bag (95) and continuously squeeze the air bag (95), and air in the air bag (95) is conveyed into the cleaning brush seat (92) through the vertical pipe (96), the adapter seat (97) and the transverse pipe (98) in sequence, so that the piston plate (94) is pushed to move towards a direction away from the base (1).
4. The optical detection device for a material test block according to claim 1, wherein the supporting structure further comprises a positioning block (44), the positioning block (44) is disposed at one end of the connecting rod (43), the dust removing mechanism further comprises a cleaning unit (5), the cleaning unit (5) comprises a cleaning support (51) and a cleaning part, and the cleaning part is connected with the positioning block (44) through the cleaning support (51).
5. The optical detection device for a test block of material according to claim 4, characterized in that the cleaning section comprises a first cleaning brush (52) and a second cleaning brush (53), the first cleaning brush (52) and the second cleaning brush (53) being arranged perpendicular to the lead screw (32); -the distance between the first brush (52) and the detector (41) is greater than the distance between the second brush (53) and the detector (41); the density of bristles of the first brush (52) is less than the density of bristles of the second brush (53); the first cleaning brush (52) and the second cleaning brush (53) are used for cleaning dust on the surface of a material test block.
6. The optical detection device for material test blocks according to claim 4, wherein the dust removing mechanism further comprises a test block seat (7), the test block seat (7) comprises a supporting shell (71), a supporting rod (72), a dust collection hole (73), a second fan (74) and a transmission gear (75), the supporting shell (71) is fixedly connected with the base (1) through the supporting rod (72), the dust collection hole (73) is arranged on the supporting shell (71), the second fan (74) is fixedly connected with the transmission gear (75), the second fan (74) and the transmission gear (75) are both rotatably connected with the supporting rod (72), and the transmission gear (75) can drive the second fan (74) to rotate around the supporting rod (72), so that negative pressure is generated in the supporting shell (71) to suck dust into the test block seat (7) through the dust collection hole (73).
7. The optical detection device for material test blocks according to claim 6, characterized in that the dust removal mechanism further comprises a dust collection transmission assembly (8), the dust collection transmission assembly (8) comprising a first toothed plate (81), a connection assembly (82) and a second toothed plate (83), the connection assembly (82) being connected with the cleaning unit (5), the first toothed plate (81) and the second toothed plate (83) being connected by the connection assembly (82); the first toothed plate (81) and the second toothed plate (83) are used for driving the transmission gear (75).
8. The optical detection device for material test blocks according to claim 7, characterized in that the dust suction transmission assembly (8) further comprises a reversing mechanism and a guiding mechanism, the reversing mechanism comprises a first reversing block (84) and a second reversing block (85), and the first reversing block (84) and the second reversing block (85) are fixedly arranged on the base (1); the guide mechanism comprises a first limit guide rail, a second limit guide rail (86), a first guide groove and a second guide groove (87), and the first limit guide rail and the second limit guide rail (86) are arranged on the base (1); the first guide groove is formed in the first toothed plate (81), and the second guide groove (87) is formed in the second toothed plate (83).
9. The optical detection device for material test blocks according to claim 4, characterized in that the drive unit (3) further comprises a motor (31), the lead screw (32) is connected with the motor (31), and the motor (31) can drive the lead screw (32) to rotate forward or backward; the detector seat (42) is in threaded connection with the lead screw (32) and is connected with the guide rod (33), and the lead screw (32) can drive the detector seat (42) to reciprocate linearly along the guide rod (33).
10. The optical detection device for material test blocks according to claim 9, characterized in that the housing (2) comprises a positioning groove (21), the positioning groove (21) being parallel to the lead screw (32) and being provided on an inner wall of the housing (2); the supporting structure further comprises a vertical rod (45), and the vertical rod (45) is arranged on the positioning block (44); the vertical rod (45) can be connected with the positioning groove (21) and can slide along the positioning groove (21).
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| CN117969516B (en) | 2024-06-11 |
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