Equipment for detecting appearance of optical diffraction element

Abstract

The utility model discloses equipment for detecting the appearance of an optical diffraction element. The equipment comprises a feed conveying module and a carrier plate body loaded with a product to be detected, a buffer storage bin, a detection conveying module and a detection module are sequentially arranged in the conveying direction of the feeding conveying module, the feeding conveying module comprises a first conveying driving part and a plurality of first magnetic wheels, and the first conveying driving part can drive the first magnetic wheels to rotate so as to convey a carrier plate body to the buffer storage bin; a plurality of limiting slots for placing the carrier plate bodies are formed in the buffer stock bin from top to bottom, and the buffer stock bin is a mechanism with openings in the two sides, so that the carrier plate bodies are conveniently transferred to the detection conveying module from the openings, and the detection conveying module can convey the carrier plate bodies to the position below the detection module. The surface appearance of the product can be automatically detected, and the accuracy of surface defect detection of the product is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to product appearance detection technical field especially relates to a device for optical diffraction element appearance detection. BACKGROUND

[0002] Optical diffraction element is a kind of new optical element that develops rapidly, is widely used in 3D (3-Dimension, three-dimensional) depth camera laser projection module, and the performance of optical diffraction element directly influences projection pattern quality, further influences the depth imaging effect of depth camera.

[0003] After optical diffraction element is sealed and installed on product chip, the surface of entire product needs to be detected, and its detection item includes whether optical diffraction element surface has dirt, whether the connecting edge of optical diffraction element and product chip has little glue, overflow glue or overflow point glue.

[0004] Therefore, it is needed to provide a device for optical diffraction element appearance detection to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to overcome the above-mentioned shortcomings, the utility model aims at providing a device for optical diffraction element appearance detection, which automatically detects the surface appearance of products and improves the accuracy of product surface defect detection.

[0006] In order to achieve the above purpose, the utility model adopts the technical scheme of a device for optical diffraction element appearance detection, which comprises a feeding conveying module and a carrier plate body loaded with products to be detected;A buffer bin, a detection conveying module and a detection module are sequentially arranged along the conveying direction of the feeding conveying module, the feeding conveying module comprises a conveying driving member one and a plurality of magnetic wheels one, the conveying driving member one can drive the magnetic wheels one to rotate to convey the carrier plate body to the buffer bin, a plurality of limiting slots for placing the carrier plate body are arranged in the buffer bin from top to bottom, and the buffer bin is a mechanism with two open sides, so that the carrier plate body can be moved from the opening to the detection conveying module, and the detection conveying module can convey the carrier plate body to the detection module below.

[0007] Further, the feeding conveying module further comprises a conveying bracket one, the conveying bracket one comprises two vertically and oppositely arranged conveying support plates, and a plurality of magnetic wheels one are arrayed on the conveying support plates along the conveying direction of the feeding conveying module. The upper surfaces of the plurality of arrayed magnetic wheels one on the conveying support plates can support the carrier plate body loaded with products to be detected, and the same direction rotation of the plurality of magnetic wheels one can provide power for conveying the carrier plate body from the feeding conveying module to the buffer bin.

[0008] Further, the feeding conveying module further comprises a pressure roller mechanism, the pressure roller mechanism comprises a downward pressing cylinder and a plurality of downward pressing rollers corresponding to the magnetic rollers one above the magnetic rollers one, when the piston rod of the downward pressing cylinder is retracted, the downward pressing rollers can be driven to move downward to press the carrier plate body on the magnetic rollers one.

[0009] When the carrier plate body enters the feeding conveying module, the sensor senses, at this time, the piston rod of the downward pressing cylinder is retracted to drive the downward pressing rollers to press downward, the carrier plate body is pressed between the downward pressing rollers and the magnetic rollers one, the friction of the magnetic rollers one is increased, so that the carrier plate body and the magnetic rollers one are kept synchronous conveying.

[0010] Further, the bottom of the buffer bin is provided with a bin jacking mechanism, the bin jacking mechanism comprises a bin fixing plate and a bin jacking drive vertically arranged on the lower surface of the bin fixing plate, the driving end of the bin jacking drive penetrates through the bin fixing plate and is connected with a bin jacking plate, the lower surface of the bin jacking plate is provided with a plurality of jacking guide rods penetrating through the bin fixing plate. The piston rod of the bin jacking drive can be retracted to drive the buffer bin to move upward or downward in the vertical direction, so as to connect the corresponding empty limiting slot of the buffer bin with the feeding conveying module, so that the carrier plate body is completely stored in the corresponding limiting slot under the conveying action of the feeding conveying module; after there is no empty limiting slot in the buffer bin, the bin jacking drive lifts and moves the limiting slot of the carrier plate body that is first put into the buffer bin to be connected with the detection conveying module, that is, the carrier plate body that is first stored and loaded with the product to be detected is moved to the subsequent detection station.

[0011] Further, the bottom of the buffer bin is provided with a bin jacking mechanism, the bin jacking mechanism comprises a bin fixing plate and a bin jacking drive vertically arranged on the lower surface of the bin fixing plate, the driving end of the bin jacking drive penetrates through the bin fixing plate and is connected with a bin jacking plate, the lower surface of the bin jacking plate is provided with a plurality of jacking guide rods penetrating through the bin fixing plate. The piston rod of the bin jacking drive can be retracted to drive the buffer bin to move upward or downward in the vertical direction, so as to connect the corresponding empty limiting slot of the buffer bin with the feeding conveying module, so that the carrier plate body is completely stored in the corresponding limiting slot under the conveying action of the feeding conveying module; after there is no empty limiting slot in the buffer bin, the bin jacking drive lifts and moves the limiting slot of the carrier plate body that is first put into the buffer bin to be connected with the detection conveying module, that is, the carrier plate body that is first stored and loaded with the product to be detected is moved to the subsequent detection station.

[0012] Further, the detection conveying module comprises a conveying drive two, a conveying support two and a plurality of magnetic rollers two located on both sides of the conveying support two, the conveying drive two drives the magnetic rollers two to rotate to convey the carrier plate body to the lower side of the detection module.

[0013] The magnetic wheels two on both sides of the conveying support correspond to each other in position, so as to support and drive the carrier plate body to move thereon.

[0014] Further, the carrier plate jacking mechanism located below the magnetic wheel two comprises a carrier plate jacking cylinder, a jacking fixed plate and a supporting jacking plate, the carrier plate jacking cylinder is fixedly arranged on the lower surface of the jacking fixed plate, and the top end of the carrier plate jacking cylinder penetrates through the jacking fixed plate and is connected with the supporting jacking plate, the supporting jacking plate is connected with a placing plate for carrying the carrier plate body through a connecting column, and the upper surface of the placing plate is provided with a plurality of positioning pins for positioning the carrier plate body.

[0015] Further, the detection module comprises a three-axis displacement assembly and a detection camera located thereon, the three-axis displacement assembly can drive the detection camera to move in X, Y and Z directions, so as to ensure that all the products to be detected on the carrier plate body are completely photographed and detected.

[0016] Further, the product code reading module comprises a code reading camera and a horizontal displacement module one for driving the code reading camera to move along the y-axis, and the code reading camera corresponds to the position of the feeding conveying module in position. The code reading camera is arranged above the carrier plate body loaded with products to photograph and record the two-dimensional codes on the products, so as to obtain the position information of each product, and the horizontal displacement module one can drive the code reading camera to move back and forth along the y-axis, so as to ensure that all the products on the carrier plate body are scanned, and the loss of position data of a single product is avoided to affect the subsequent appearance detection.

[0017] Further, the product code reading module, the feeding conveying module, the buffer bin, the detection conveying module and the detection module are arranged on the workbench.

[0018] The utility model discloses the beneficial effects of:

[0019] In the utility model, the feeding conveying module, the buffer bin, the detection conveying module and the detection module cooperate with each other, the feeding conveying module moves the carrier plate body loaded with products to be detected into the empty limiting slot in the buffer bin through the magnetic wheel one, and the buffer bin is used to make the glue on the products have enough standing and solidifying time, the detection conveying module can move the products after standing to the detection module to carry out unified product surface appearance detection, and the accuracy of product surface defect detection can be effectively improved. DRAWINGS

[0020] Figure 1 It is the overall structure axial side view of an embodiment of the utility model;

[0021] Figure 2 It is Figure 1 It is the enlarged structural schematic view of A in the utility model;

[0022] Figure 3The axial side view of the overall structure of the buffer stock bin and the stock bin jacking mechanism of an embodiment of the utility model;

[0023] Figure 4 The axial side view of the overall structure of the buffer stock bin and the carrier plate pushing-out mechanism of an embodiment of the utility model;

[0024] Figure 5 The axial side view of the overall structure of the detection conveying module of an embodiment of the utility model;

[0025] Figure 6 The axial side view of the overall structure of the carrier plate jacking mechanism of an embodiment of the utility model;

[0026] In the figure: 1, workbench; 2, product code reading module; 21, code reading camera; 22, horizontal displacement module one; 3, feeding conveying module; 31, conveying driving part one; 32, conveying support one; 34, magnetic wheel one; 35, pressure wheel mechanism; 351, lower pressure cylinder; 352, lower pressure wheel; 4, carrier plate body; 5, buffer stock bin; 51, limiting slot; 52, strip-shaped groove; 6, stock bin jacking mechanism; 61, stock bin fixing plate; 62, jacking guide rod; 63, stock bin jacking plate; 7, carrier plate pushing-out mechanism; 71, pushing-out cylinder; 72, pushing pawl; 73, horizontal displacement module two; 8, detection conveying module; 81, conveying driving part two; 82, magnetic wheel two; 83, upper limiting block; 84, stopping mechanism; 85, conveying support two; 9, carrier plate jacking mechanism; 91, carrier plate jacking cylinder; 92, jacking fixing plate; 93, placing plate; 94, supporting jacking plate; 10, detection module; 101, detection camera; 102, three-axis displacement assembly. DETAILED DESCRIPTION

[0027] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined.

[0028] Referring to the drawings Figures 1 to 6As shown, the device for appearance detection of optical diffraction elements in the embodiment includes a feeding conveying module 3 and a carrier plate body 4 loaded with products to be detected; a buffer bin 5, a detection conveying module 8 and a detection module 10 are sequentially arranged along the conveying direction of the feeding conveying module 3, the feeding conveying module 3 includes a conveying driving member one 31 and a plurality of magnetic wheels one 34, the conveying driving member one 31 can drive the magnetic wheels one 34 to rotate to convey the carrier plate body 4 to the buffer bin 5, the driving end of the conveying driving member one 31 is fixedly connected with one of the magnetic wheels one 34, when the magnetic wheel one 34 is driven to rotate by the conveying driving member one 31, the magnetic wheels one 34 on the same side of the magnetic wheel one 34 also rotate correspondingly, so as to drive the carrier plate body 4 placed on the magnetic wheels one 34 to move towards the buffer bin 5 until the carrier plate body 4 is completely stored in the buffer bin 5.

[0029] In some embodiments, the conveying driving member one 31 is a driving motor.

[0030] Specifically, regarding the arrangement of the magnetic wheels, when one of the magnetic wheels one 34 rotates, the magnetic pole position changes, and the adjacent magnetic poles of different polarities are used to drive other magnetic wheels one 34 to rotate, so as to realize non-contact magnetic transmission of power. Using the above magnetic wheels one 34 as a power bridge to convey the carrier plate body 4 can achieve the effect of non-contact, non-friction and no dust. In some embodiments, the surface of the magnetic wheels one 34 is sleeved with a friction-resistant rubber ring to make the conveying of the carrier plate body 4 more smooth.

[0031] After the optical diffraction element is glued to the product, it needs to be rested for a certain period of time to solidify the glue, so that the two are more stable, and then appearance detection can be carried out, therefore, the buffer bin 5 for temporarily storing a plurality of carrier plate bodies 4 is arranged in the present application, a plurality of limiting slots 51 for placing the carrier plate bodies 4 are arranged from top to bottom in the buffer bin 5, and the buffer bin 5 is an open mechanism on both sides, so as to move the carrier plate bodies 4 from the opening to the detection conveying module 8,

[0032] The detection conveying module 8 can convey the carrier plate body 4 to the detection module 10 below to realize the final visual detection of the product appearance.

[0033] The feeding conveying module 3 further includes a conveying support one 32, the conveying support one 32 includes two vertically and oppositely arranged conveying support plates, and a plurality of magnetic wheels one 34 are arrayed on the conveying support plates along the conveying direction of the feeding conveying module 3. The upper surfaces of the plurality of arrayed magnetic wheels one 34 on the conveying support plates can support the carrier plate bodies 4 loaded with products to be detected, and the same direction rotation of the plurality of magnetic wheels one 34 can provide power for conveying the carrier plate bodies 4 from the feeding conveying module 3 to the buffer bin 5.

[0034] It should be noted that the plurality of magnetic wheels 34 on the two conveying support plates are one-to-one corresponding in position to ensure that the conveying of the carrier plate body 4 loaded with the products to be detected can be stably transferred to the next station when the magnetic wheels 34 rotate.

[0035] In some embodiments, one of the conveying support plates is movably connected to the bottom of the conveying bracket 32 through a linear guide rail, and the length direction of the linear guide rail is perpendicular to the conveying direction of the carrier plate body 4, so as to facilitate the staff to adjust the distance between the two conveying support plates to adapt to the support and placement of carrier plate bodies 4 of different sizes, thereby improving the applicability of the detection equipment.

[0036] The feeding conveying module 3 further comprises a pressing wheel mechanism 35, which comprises a pressing cylinder 351 and a plurality of pressing wheels 352 corresponding to the magnetic wheels 34 and located above the magnetic wheels 34. When the piston rod of the pressing cylinder 351 retracts, the pressing wheels 352 can be driven to move downward to press the carrier plate body 4 on the magnetic wheels 34.

[0037] In some embodiments, the pressing end of the pressing cylinder 351 is fixedly connected with a movable plate that can move up and down, the movable plate is located above the conveying support plate and is connected through guide bolts penetrating both, and when the piston rod of the pressing cylinder 351 moves upward or downward, the movable plate can be driven to move upward or downward, thereby enabling the plurality of pressing wheels 352 located on the movable plate and corresponding to the positions of the magnetic wheels 34 to move upward or downward.

[0038] When the carrier plate body 4 enters the feeding conveying module 3, the inductor senses, at which time the piston rod of the pressing cylinder 351 retracts to drive the pressing wheels 352 to press downward, thereby pressing the carrier plate body 4 between the pressing wheels 352 and the magnetic wheels 34 to increase the friction of the magnetic wheels 34, so that the carrier plate body 4 and the magnetic wheels 34 keep synchronous conveying.

[0039] The bottom of the buffer bin 5 is provided with a bin jacking mechanism 6, which comprises a bin fixing plate 61 and a bin jacking drive arranged vertically on the lower surface of the bin fixing plate 61. The driving end of the bin jacking drive penetrates the bin fixing plate 61 and is connected with a bin jacking plate 63. The lower surface of the bin jacking plate 63 is provided with a plurality of jacking guide rods 62 penetrating the bin fixing plate 61. The extension and retraction of the piston rod of the bin jacking drive can drive the buffer bin 5 to move upward or downward in the vertical direction, so as to dock the corresponding empty limiting slot 51 of the buffer bin 5 with the feeding conveying module 3, so that the carrier plate body 4 is completely stored in the corresponding limiting slot 51 under the conveying action of the feeding conveying module 3 and is kept stationary. After there is no empty limiting slot 51 in the buffer bin 5, the bin jacking drive lifts and moves the limiting slot 51 in which the carrier plate body 4 is first placed to dock with the detection conveying module 8, that is, to transfer the carrier plate body 4 loaded with the products to be detected, which is first kept stationary, to the subsequent detection station.

[0040] In some embodiments, the carrier plate body 4 is placed from the top layer of the buffer magazine 5 when the feeding and conveying module 3 conveys it, that is, at this time, the driving end of the magazine jacking drive is in the retracted state, and after the carrier plate body 4 is placed in the top layer, the magazine jacking drive drives the buffer magazine 5 to move layer by layer upwards to sequentially dock the empty limiting slot 51 on it with the feeding and conveying module 3.

[0041] In some embodiments, the magazine jacking drive is a lifting cylinder or a servo jacking module.

[0042] Further comprising a carrier plate pushing mechanism 7 and a horizontal displacement module two 73, the carrier plate pushing mechanism 7 comprises a pushing cylinder 71 and a pushing pawl 72 at the driving end thereof, and a plurality of strip grooves 52 are formed in the length direction of the buffer magazine 5 along the height direction thereof, and the strip grooves 52 are horizontally arranged, the piston rod of the pushing cylinder 71 can drive the pushing pawl 72 to pass through the strip groove 52 and enter the buffer magazine 5, the horizontal displacement module two 73 is horizontally arranged along the conveying direction of the feeding and conveying module 3, and the pushing cylinder 71 is located on the horizontal displacement module two 73. After the limiting slot 51 on the buffer magazine 5 is docked with the detection conveying module 8, the piston rod of the pushing cylinder 71 is extended to drive the pushing pawl 72 to pass through the strip groove 52 corresponding to the limiting slot 51, at this time, the pushing pawl 72 is located on the side of the carrier plate body 4 close to the feeding and conveying module 3, the horizontal displacement module two 73 is started to drive the pushing cylinder 71 to move towards the direction close to the detection conveying module 8, during the process, the pushing pawl 72 pushes the carrier plate body 4 from left to right into the detection conveying module 8, thereby realizing automatic transfer of the carrier plate body 4 to the next station.

[0043] It should be noted that the strip grooves 52 correspond to the positions of the limiting slots 51.

[0044] The detection conveying module 8 comprises a conveying drive two 81, a conveying support two 85, and a plurality of magnetic wheels two 82 located on both sides of the conveying support two 85, the conveying drive two 81 drives the magnetic wheels two 82 to rotate to convey the carrier plate body 4 to the lower side of the detection module 10.

[0045] The magnetic wheels two 82 on both sides of the conveying support two 85 are in one-to-one correspondence to support and drive the carrier plate body 4 to move thereon.

[0046] Further comprising a carrier plate lifting mechanism 9 located below the magnetic wheel two 82, the carrier plate lifting mechanism 9 comprises a carrier plate lifting cylinder 91, a lifting fixed plate 92 and a supporting lifting plate 94, the carrier plate lifting cylinder 91 is fixedly arranged on the lower surface of the lifting fixed plate 92, and the top end of the carrier plate lifting cylinder 91 penetrates through the lifting fixed plate 92 and is connected with the supporting lifting plate 94, the supporting lifting plate 94 is connected with a placing plate 93 for carrying the carrier plate body 4 through a connecting column, and a plurality of positioning pins for positioning the carrier plate body 4 are arranged on the upper surface of the placing plate 93. The carrier plate pushing mechanism 7 pushes the carrier plate body 4 from the buffer bin 5 to the magnetic wheel two 82, the transmission driving part two 81 drives the magnetic wheel two 82 to rotate to move the carrier plate body 4 to below the detection module 10, at this time, the carrier plate lifting mechanism 9 starts to work, the piston cylinder of the carrier plate lifting cylinder 91 extends to push the placing plate 93 to move upward, the positioning pins on the upper surface of the placing plate 93 are inserted into the corresponding positioning holes on the carrier plate body 4, and the placing plate 93 is moved upward until the carrier plate body 4 abuts against the upper limiting block 83, at this time, the position of the carrier plate body 4 is fixed, so that the position of the carrier plate body 4 does not change during the camera shooting detection, thereby ensuring the accuracy of the detection result.

[0047] In some embodiments, the top of the transmission bracket two 85 is provided with an upper limiting block 83, and the side of the detection transmission module 8 away from the feeding transmission module 3 is provided with a stopping mechanism 84. The upper limiting block 83 can limit the distance of the carrier plate lifting mechanism 9 upwardly lifting the carrier plate body 4.

[0048] It should be noted that the carrier plate lifting mechanism 9 corresponds to the position of the detection module 10.

[0049] The detection module 10 comprises a three-axis displacement assembly 102 and a detection camera 101 located thereon. The three-axis displacement assembly 102 can drive the detection camera 101 to move in X, Y and Z directions, so as to ensure that all the products on the carrier plate body 4 are completely photographed and detected.

[0050] Further comprising a product code reading module 2, the product code reading module 2 comprises a code reading camera 21 and a horizontal displacement module one 22 for driving the code reading camera 21 to move along the y-axis, and the code reading camera 21 corresponds to the position of the feeding transmission module 3. The code reading camera 21 photographs and records the two-dimensional codes on the products from above the carrier plate body 4 loaded with the products, so as to obtain the position information of each product, and the horizontal displacement module one 22 can drive the code reading camera 21 to move back and forth along the y-axis, so as to ensure that all the products on the carrier plate body 4 are scanned, and avoid that the position data of a single product is lost and affects the subsequent appearance detection.

[0051] Specifically, the y-axis is perpendicular to the conveying direction of the feeding transmission module 3.

[0052] It should be noted that it is not limited to horizontal displacement module 22, as long as it can drive the code reading camera 21 to move in the direction perpendicular to the feeding direction of the carrier plate body 4, such as a reciprocating cylinder.

[0053] The product code reading module 2, the feeding conveying module 3, the buffer bin, the detection conveying module 8 and the detection module 10 are arranged on the workbench 1. Specifically, the bin fixing plate 61 is fixedly arranged on the workbench 1 to support the arrangement of the bin jacking cylinder.

[0054] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made in accordance with the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. An apparatus for optical diffractive element appearance detection, characterized by: The application relates to a feeding conveying module and a carrier plate body loaded with products to be detected; a buffer bin, a detection conveying module and a detection module are sequentially arranged along the conveying direction of the feeding conveying module; the feeding conveying module comprises a conveying driving element one and a plurality of magnetic wheels one; the conveying driving element one can drive the magnetic wheels one to rotate to convey the carrier plate body to the buffer bin; a plurality of limiting insertion slots for placing the carrier plate body are formed in the buffer bin from top to bottom; the buffer bin is a two-side opening mechanism so as to move the carrier plate body from the opening to the detection conveying module; the detection conveying module can convey the carrier plate body to the lower side of the detection module.

2. A device for optical diffractive element appearance inspection according to claim 1, characterized in that: The feeding conveying module further comprises a conveying support one; the conveying support one comprises two vertically and oppositely arranged conveying support plates; a plurality of magnetic wheels one are arrayed on the conveying support plates along the conveying direction of the feeding conveying module.

3. A device for optical diffractive element appearance inspection according to claim 2, characterized in that: The feeding conveying module further comprises a pressing wheel mechanism; the pressing wheel mechanism comprises a pressing cylinder and a plurality of pressing wheels corresponding to the magnetic wheels one; when the pressing cylinder piston rod is retracted, the pressing wheels can be driven to move downwards to press the carrier plate body on the magnetic wheels one.

4. The apparatus for optical diffractive element appearance inspection according to claim 1, wherein: The bottom of the buffer bin is provided with a bin jacking mechanism; the bin jacking mechanism comprises a bin fixing plate and a bin jacking driving element vertically arranged on the lower surface of the bin fixing plate; the driving end of the bin jacking driving element penetrates through the bin fixing plate and is connected with a bin jacking plate; the lower surface of the bin jacking plate is provided with a plurality of jacking guide rods penetrating through the bin fixing plate.

5. The apparatus for optical diffractive element appearance inspection according to claim 1, wherein: The application further comprises a carrier plate pushing-out mechanism and a horizontal displacement module two; the carrier plate pushing-out mechanism comprises a pushing-out cylinder and a pushing pawl arranged on the driving end of the pushing-out cylinder; a plurality of strip-shaped grooves are formed in the height direction of the two sides of the buffer bin along the length direction of the buffer bin; the strip-shaped grooves are horizontally arranged; the pushing-out cylinder piston rod can drive the pushing pawl to pass through the strip-shaped grooves and enter the buffer bin; the horizontal displacement module two is horizontally arranged along the conveying direction of the feeding conveying module; the pushing-out cylinder is arranged on the horizontal displacement module two.

6. The apparatus for optical diffractive element appearance inspection according to claim 1, wherein: The detection conveying module comprises a conveying driving element two, a conveying support two and a plurality of magnetic wheels two arranged on the two sides of the conveying support two; the conveying driving element two drives the magnetic wheels two to rotate to convey the carrier plate body to the lower side of the detection module.

7. A device for optical diffractive element appearance inspection according to claim 6, characterized in that: The application further comprises a carrier plate jacking mechanism arranged below the magnetic wheels two; the carrier plate jacking mechanism comprises a carrier plate jacking cylinder, a jacking fixing plate and a supporting jacking plate; the carrier plate jacking cylinder is fixedly arranged on the lower surface of the jacking fixing plate and penetrates through the jacking fixing plate and is connected with the supporting jacking plate; the supporting jacking plate is connected with a placing plate for carrying the carrier plate body through connecting columns; the upper surface of the placing plate is provided with a plurality of positioning pins for positioning the carrier plate body.

8. The apparatus for optical diffractive element appearance inspection according to claim 1, wherein: The detection module comprises a three-axis displacement assembly and a detection camera arranged thereon.

9. The apparatus for optical diffractive element appearance inspection according to claim 1, wherein: The application further comprises a product code reading module; the product code reading module comprises a code reading camera and a horizontal displacement module one for driving the code reading camera to move along the y-axis; the code reading camera corresponds to the position of the feeding conveying module.

10. A device for optical diffractive element appearance inspection according to claim 9, characterized in that: The product code reading module, the feeding conveying module, the buffer bin, the detection conveying module and the detection module are arranged on a workbench.

Images