Camera lens protection mechanism

Abstract

The utility model relates to a camera lens protection mechanism. The camera lens protection mechanism comprises a first mounting block and a second mounting block, a first through hole is formed in the first mounting block, the upper end of the first mounting block is connected with the camera mounting seat, the camera mounting seat is used for mounting a camera, and the camera shoots images through the first through hole; the second mounting block is provided with a second through hole and an air inlet pipeline communicated with the second through hole, and the air inlet pipeline is connected with an air source; the lower end of the first mounting block is configured to extend into the second through hole from the upper end of the second through hole of the second mounting block, and an annular ventilation gap is formed between the lower part of the first mounting block and the second through hole; gas input by the gas source enters the ventilation gap through the gas inlet pipeline and is finally guided out from the lower end of the second through hole in an annular gas curtain mode. The ventilation gap is formed between the lower part of the first mounting block and the second through hole, and air is blown downwards from the ventilation gap, so that a continuous annular air curtain is formed below the lens, the annular air curtain can prevent water vapor from entering, and the camera and the lens can be effectively protected.

Description

Technical Field

[0001] The present application relates to the technical field of wafer dicing, and in particular to a camera lens protection mechanism. Background Art

[0002] During the wafer dicing process, it is necessary to locate the area to be diced and take pictures with a camera regularly to determine whether the cutting path is offset. Generally, the camera and lens are installed on the moving seat of the cutter. During the dicing process, it is necessary to continuously spray water on the wafer surface to cool down and remove dust. At this time, water droplets or water vapor may enter the lens, causing damage to the lens or affecting the accuracy of the camera.

[0003] In order to avoid the influence of water vapor, the existing solution is to set a blowing mechanism under the lens to prevent water vapor from entering the lens by blowing sideways. However, this solution is not effective. Utility Model Content

[0004] In view of the inability of existing wafer dicing cameras to solve the problem of water vapor affecting the lens, the present application provides a camera lens protection mechanism that can effectively prevent water vapor from affecting the lens.

[0005] The technical solution of the present application is as follows: A camera lens protection mechanism comprises a first mounting block and a second mounting block; wherein:

[0006] A first through hole is formed on the first mounting block, and an upper end of the first mounting block is connected to a camera mounting seat, the camera mounting seat is used to mount a camera, and the camera captures an image through the first through hole;

[0007] The second mounting block is provided with a second through hole and an air intake pipeline connected to the second through hole, and the air intake pipeline is connected to an air source;

[0008] The lower end of the first mounting block is configured to extend from the upper end of the second through hole of the second mounting block into the second through hole, and an annular ventilation gap is formed between the lower portion of the first mounting block and the second through hole;

[0009] The gas input from the gas source enters the ventilation gap through the air inlet pipeline, and is finally discharged from the lower end of the second through hole in the form of an annular air curtain.

[0010] A ventilation gap is formed between the lower part of the first mounting block and the second through hole, and air is blown downward from the ventilation gap, thereby forming a continuous annular air curtain under the lens. The annular air curtain can isolate water vapor from entering, thereby effectively protecting the camera and the lens.

[0011] Optionally, the lower portion of the first mounting block and the lower portion of the second through hole are both in the shape of a truncated cone with diameters gradually decreasing from top to bottom.

[0012] The lower part of the first mounting block and the lower part of the second through hole are configured in a truncated cone shape, so the ventilation gap is also correspondingly truncated cone-shaped. The flow rate of the gas blown downward through the truncated cone-shaped ventilation gap will increase, which can increase the isolation performance of the annular air curtain and better protect the lens.

[0013] Optionally, a sealing ring is installed between the lower portion of the first mounting block and the second through hole, and the sealing ring is located between the upper end of the second through hole and the outlet of the air intake pipeline.

[0014] By configuring a sealing ring, the sealing performance above the ventilation gap can be enhanced to prevent gas leakage from above.

[0015] Optionally, a lighting device for irradiating light toward the bottom of the second mounting block is also installed on the second mounting block.

[0016] When the camera takes a picture, the lighting device installed on the second installation block can provide lighting to the photographed object below the second installation block, so as to obtain a clear image.

[0017] Optionally, the camera lens protection mechanism also includes a lens blocking assembly, which includes a driving member and a baffle, wherein the first end of the baffle is fixedly connected to the driving end of the driving member, and the driving member is configured to drive the baffle to move to the bottom of the second through hole after the camera stops working to block the second through hole of the second mounting block.

[0018] When the camera does not need to take pictures, the lens can be covered by the lens cover assembly, which effectively reduces the risk of water vapor entering the lens and further protects the lens.

[0019] Optionally, a cover body surrounding the second mounting block is arranged at the lower part and periphery of the second mounting block, a gap is formed between the bottom plate and the side plate of the cover body and the second mounting block, and a through hole corresponding to the second through hole is opened on the bottom plate of the cover body;

[0020] The driving member is installed in the gap and is located beside the second mounting block; the baffle is an L-shaped elastic baffle, and the second end of the baffle is located between the lower end of the second mounting block and the bottom plate of the cover body;

[0021] The driving member drives the first end of the baffle to move downward along the gap, and when the baffle contacts the bottom plate of the cover body, the second end of the baffle moves horizontally along the bottom plate until it blocks the second through hole of the second mounting block.

[0022] The cover arranged around the second mounting block can protect the lens from impact. The baffle of the lens shielding assembly is set as an L-shaped elastic baffle. The baffle can move vertically and then horizontally in the narrow space inside the cover, so as to reliably cover the lens in a limited space.

[0023] Optionally, the driving member is a pen-shaped cylinder vertically mounted on the side plate of the cover body.

[0024] The pen-shaped cylinder is small in size and can better utilize the narrow space inside the cover.

[0025] Optionally, a stopper is installed on the second mounting block, and the stopper is installed between the second mounting block and the baffle plate to prevent the baffle plate from contacting the second mounting block during movement.

[0026] The stopper installed between the second mounting block and the stopper plate enables the stopper plate to maintain a certain distance from the second mounting block during movement, thereby preventing the stopper plate from scratching the lower part of the second mounting block.

[0027] Optionally, a guide plate is also installed on the second mounting block, and the guide plate is arranged along the horizontal movement direction of the second end of the baffle plate to guide the horizontal movement of the second end of the baffle plate and prevent the second end of the baffle plate from contacting the bottom of the second mounting block.

[0028] The guide plate guides the horizontal movement of the baffle plate and keeps a certain distance between the second end of the baffle plate and the bottom of the second mounting block, thereby preventing the baffle plate from scratching the bottom of the second mounting block.

[0029] Optionally, the camera lens protection mechanism further includes an air blowing assembly, which is mounted on the second mounting block and is used for blowing air toward the bottom of the second mounting block.

[0030] Before the camera takes a picture, the air blowing assembly installed on the second mounting block can blow air toward the surface of the object to be photographed below the second mounting block, so as to facilitate the positioning of the camera for taking a picture. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of a three-dimensional structure of an optional embodiment of the present application;

[0032] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure from another perspective;

[0033] Figure 3 for Figure 1 The main view;

[0034] Figure 4 for Figure 3 Left view of

[0035] Figure 5 for Figure 1 A schematic diagram of the three-dimensional structure of the first mounting block and the second mounting block;

[0036] Figure 6 for Figure 5 A cross-sectional view of a second mounting block in FIG.

[0037] Figure 7 This is a schematic diagram of a three-dimensional structure of another optional embodiment of the present application;

[0038] Figure 8 for Figure 7 A schematic diagram of the three-dimensional structure of the lens shielding assembly in the illustrated embodiment;

[0039] Fig. 9 for Figure 8 The main view;

[0040] Fig.10 for Figure 1 Schematic diagram of the three-dimensional structure of the stopper.

[0041] Figures 1 to 10 Including:

[0042] Camera lens protection mechanism 1;

[0043] A first mounting block 10, a first through hole 11, and a truncated cone-shaped column 12;

[0044] The second mounting block 20, the second through hole 21, the air inlet pipe 22, the sealing groove 23, the air vent 24, the truncated cone-shaped through hole 25, the stopper 26, the fillet 261, and the guide plate 27;

[0045] A lens shielding assembly 30, a driving member 31, a baffle 32, a first end 321, and a second end 322;

[0046] lighting device 40;

[0047] Blowing assembly 50;

[0048] Cover body 60;

[0049] Camera 100 , lens 101 , camera mounting base 102 . DETAILED DESCRIPTION

[0050] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0051] like Figure 1 to Figure 4 As shown, the present application is a camera lens protection mechanism 1, which is used to protect the lens of a detection camera in a wafer dicing machine.

[0052] The camera lens protection mechanism 1 mainly includes a first mounting block 10 and a second mounting block 20 .

[0053] Wherein: a first through hole 11 is opened on the first mounting block 10, the upper end of the first mounting block 10 is connected to a camera mounting seat 102, the camera mounting seat 102 is used to mount a camera 100, the camera 100 captures an image through the first through hole 11, and the lens 101 is mounted below the camera 100;

[0054] The second mounting block 20 is provided with a second through hole 21 and an air intake pipe 22 connected to the second through hole 21, and the air intake pipe 22 is connected to an air source;

[0055] The lower end of the first mounting block 10 is configured to extend from the upper end of the second through hole 21 of the second mounting block 20 into the second through hole 21, and an annular ventilation gap is formed between the lower portion of the first mounting block 10 and the second through hole 21;

[0056] The gas input from the gas source enters the ventilation gap through the air inlet pipeline 22 and is finally discharged from the lower end of the second through hole 21 in the form of an annular air curtain.

[0057] A ventilation gap is formed between the lower portion of the first mounting block 10 and the second through hole 21 , and air is blown downward from the ventilation gap, thereby forming a continuous annular air curtain under the lens 101 . The annular air curtain can isolate water vapor from entering, thereby effectively protecting the camera 100 and the lens 101 .

[0058] like Figure 5 , Figure 6 As shown, optionally, the lower part of the first mounting block 10 and the lower part of the second through hole 21 are both truncated cones with diameters gradually decreasing from top to bottom. Specifically, the lower part of the first mounting block 10 forms a truncated cone-shaped column 12, and the lower part of the second through hole 21 forms a truncated cone-shaped through hole 25, and the outer diameter of the truncated cone-shaped column 12 is smaller than the diameter of the truncated cone-shaped through hole 25 at the same height, so that a truncated cone-shaped ventilation gap is formed between the truncated cone-shaped column 12 and the truncated cone-shaped through hole 25.

[0059] The lower part of the first mounting block 10 and the lower part of the second through hole 21 are configured in a truncated cone shape, so the ventilation gap is also correspondingly truncated cone-shaped. The flow rate of the gas blown downward through the truncated cone-shaped ventilation gap will increase, which can increase the isolation performance of the annular air curtain and better protect the lens 101.

[0060] Optionally, a sealing ring is installed between the lower part of the first mounting block 10 and the second through hole 21, and the sealing ring is located between the upper end of the second through hole 21 and the outlet of the intake pipe 22. Optionally, a sealing groove 23 is opened on the second through hole 21, and the sealing ring is installed in the sealing groove 23.

[0061] By configuring a sealing ring, the sealing performance above the ventilation gap can be enhanced to prevent gas leakage from above; installing the sealing ring in the sealing groove 23 in the second through hole 21 can prevent the sealing ring from moving.

[0062] Optionally, a vertical vent hole 24 is further provided on the second mounting block 20, the upper end of the vent hole 24 opens to the top surface of the second mounting block 20, and the lower end thereof is connected to the air inlet pipe 22. The opening of the vent hole 24 is arranged on the top surface of the second mounting block 20, and the opening is connected to the air source through an air pipe, so as to avoid interference caused by arranging the air pipe on the side of the second mounting block 20.

[0063] Optionally, the second mounting block 20 is further provided with an illumination device 40 for irradiating light to the lower part of the second mounting block 20. Optionally, the illumination device 40 uses an optical fiber, through which light is introduced into the second mounting block 20 and output from the illumination area below the second mounting block 20, thereby providing fill light for the position to be photographed.

[0064] When the camera 100 takes a picture, the lighting device 40 installed on the second mounting block 20 can provide lighting to the photographed object below the second mounting block 20, so as to obtain a clear image.

[0065] See also Figure 1 to Figure 4 Optionally, the camera lens protection mechanism 1 further includes a lens shielding assembly 30. The lens shielding assembly 30 includes a driving member 31 and a baffle 32, wherein a first end 321 of the baffle 32 is fixedly connected to a driving end of the driving member 31, and the driving member 31 is configured to drive the baffle 32 to move to the lower side of the second through hole 21 after the camera 100 stops working, so as to shield the second through hole 21 of the second mounting block 20.

[0066] When the camera 100 does not need to take pictures, the lens 101 is shielded by the lens shielding assembly 30 , which effectively reduces the risk of moisture entering the lens 101 and further protects the lens 101 .

[0067] When there is enough space around the lens 101 , the driving member 31 and the baffle 32 can be arranged horizontally, and the driving member 31 drives the baffle 32 to directly move horizontally to cover the lens 101 .

[0068] When the space around the lens 101 is narrow, for example Figure 7 In one embodiment shown, a cover body 60 surrounding the second mounting block 20 is arranged at the lower part and periphery of the second mounting block 20, a gap is formed between the bottom plate and side plates of the cover body 60 and the second mounting block 20, and a through hole corresponding to the second through hole 21 is opened on the bottom plate of the cover body 60.

[0069] At this time, the driving member 31 is installed in the gap and is located beside the second mounting block 20. Figure 8 , Fig. 9 As shown, the baffle plate 32 is designed as an L-shaped elastic baffle plate, and the second end 322 of the baffle plate 32 is located between the lower end of the second mounting block 20 and the bottom plate of the cover body 60 .

[0070] In this case, the driving member 31 drives the first end 321 of the baffle 32 to move downward along the gap. When the baffle 32 contacts the bottom plate of the cover body 60, the second end 322 of the baffle 32 moves horizontally along the bottom plate until it blocks the second through hole 21 of the second mounting block 20.

[0071] The cover body 60 arranged around the second mounting block 20 can protect the lens 101 from impact. The baffle 32 of the lens shielding assembly 30 is set as an L-shaped elastic baffle. The baffle 32 can move vertically first and then horizontally in the narrow space inside the cover body 60, so as to reliably cover the lens 101 in a limited space.

[0072] like Figure 8 , Fig. 9 As shown, optionally, the driving member 31 is a pen-shaped cylinder vertically mounted on the side plate of the cover body 60.

[0073] The pen-shaped cylinder is small in size and can make better use of the narrow space inside the cover body 60.

[0074] See also Figure 1 to Figure 4 Optionally, a stopper 26 is installed on the second mounting block 20, and the stopper 26 is installed between the second mounting block 20 and the baffle 32 to prevent the baffle 32 from contacting the second mounting block 20 during movement. Fig.10 As shown, optionally, the portion of the stopper 26 that contacts the baffle 32 is configured as a rounded corner 261 , and the rounded corner 261 can serve as a guide for the movement of the baffle 32 and facilitate the movement of the baffle 32 .

[0075] The stopper 26 installed between the second mounting block 20 and the baffle 32 keeps a certain distance from the second mounting block 20 during the movement of the baffle 32 , thereby preventing the baffle 32 from scratching the lower part of the second mounting block 20 .

[0076] Optionally, a guide plate 27 is further mounted on the second mounting block 20, and the guide plate 27 is arranged along the horizontal movement direction of the second end 322 of the baffle 32, and is used to guide the second end 322 of the baffle 32 to move horizontally and prevent the second end 322 of the baffle 32 from contacting the bottom of the second mounting block 20. At this time, the lower surface of the guide plate 27 is lower than the lower surface of the second mounting block 20.

[0077] The guide plate 27 guides the horizontal movement of the baffle plate 32 and keeps a certain distance between the second end 322 of the baffle plate 32 and the bottom of the second mounting block 20 , thereby preventing the baffle plate 32 from scratching the bottom of the second mounting block 20 .

[0078] like Figure 2 to Figure 4 As shown, optionally, the camera lens protection mechanism 1 further includes an air blowing assembly 50 , which is mounted on the second mounting block 20 and is used for blowing air toward the bottom of the second mounting block 20 .

[0079] Before the camera 100 takes a picture, the blowing assembly 50 installed on the second mounting block 20 can blow air toward the surface of the object to be photographed below the second mounting block 20, so as to facilitate the positioning of the camera 100 for taking a picture.

[0080] It should be noted that Figure 1 to Figure 4 In the embodiment shown, there are two cameras 100, and accordingly, there are two lenses 101. The two cameras 100 have different functions and different usage scenarios, so two camera lens protection mechanisms 1 need to be provided to protect the two lenses 101 respectively. However, a common lens shielding assembly 30 can be used to shield the two lenses 101 at the same time. Of course, two lens shielding assemblies 30 can also be provided to shield the two lenses 101 respectively.

[0081] The present application is described in sufficient detail above with certain particularity. It should be understood by those skilled in the art that the description in the embodiments is merely exemplary, and all changes made without departing from the true spirit and scope of the present application should fall within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, rather than by the above description in the embodiments.

Claims

1. A camera lens protection mechanism, characterized in that: The camera lens protection mechanism comprises a first mounting block and a second mounting block; wherein: A first through hole is formed on the first mounting block, and an upper end of the first mounting block is connected to a camera mounting seat, the camera mounting seat is used to mount a camera, and the camera captures an image through the first through hole; The second mounting block is provided with a second through hole and an air intake pipeline connected to the second through hole, and the air intake pipeline is connected to an air source; The lower end of the first mounting block is configured to extend from the upper end of the second through hole of the second mounting block into the second through hole, and an annular ventilation gap is formed between the lower portion of the first mounting block and the second through hole; The gas input from the gas source enters the ventilation gap through the air inlet pipeline, and is finally discharged from the lower end of the second through hole in the form of an annular air curtain.

2. The camera lens protection mechanism according to claim 1, characterized in that: The lower portion of the first mounting block and the lower portion of the second through hole are both in the shape of a truncated cone with diameters gradually decreasing from top to bottom.

3. The camera lens protection mechanism according to claim 1, characterized in that: A sealing ring is installed between the lower portion of the first mounting block and the second through hole, and the sealing ring is located between the upper end of the second through hole and the outlet of the air intake pipeline.

4. The camera lens protection mechanism according to claim 1, characterized in that: The second mounting block is also provided with an illumination device for irradiating light toward the lower side of the second mounting block.

5. The camera lens protection mechanism according to claim 1, characterized in that: The camera lens protection mechanism also includes a lens blocking assembly, which includes a driving member and a baffle, wherein the first end of the baffle is fixedly connected to the driving end of the driving member, and the driving member is configured to drive the baffle to move to the bottom of the second through hole after the camera stops working to block the second through hole of the second mounting block.

6. The camera lens protection mechanism according to claim 5, characterized in that: A cover body surrounding the second mounting block is arranged at the lower part and the periphery of the second mounting block, a gap is formed between the bottom plate and the side plate of the cover body and the second mounting block, and a through hole corresponding to the second through hole is opened on the bottom plate of the cover body; The driving member is installed in the gap and is located beside the second mounting block; the baffle is an L-shaped elastic baffle, and the second end of the baffle is located between the lower end of the second mounting block and the bottom plate of the cover body; The driving member drives the first end of the baffle to move downward along the gap, and when the baffle contacts the bottom plate of the cover body, the second end of the baffle moves horizontally along the bottom plate until it covers the second through hole of the second mounting block.

7. The camera lens protection mechanism according to claim 6, characterized in that: The driving member is a pen-shaped cylinder vertically mounted on the side plate of the cover body.

8. The camera lens protection mechanism according to claim 6, characterized in that: A stopper is installed on the second mounting block. The stopper is installed between the second mounting block and the baffle plate to prevent the baffle plate from contacting the second mounting block during movement.

9. The camera lens protection mechanism according to claim 8, characterized in that: A guide plate is also mounted on the second mounting block. The guide plate is arranged along the horizontal movement direction of the second end of the baffle plate to guide the horizontal movement of the second end of the baffle plate and prevent the second end of the baffle plate from contacting the bottom of the second mounting block.

10. The camera lens protection mechanism according to claim 1, characterized in that: The camera lens protection mechanism further comprises an air blowing assembly, which is mounted on the second mounting block and is used for blowing air toward the bottom of the second mounting block.

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