Flatness detection device for special optical filter

Abstract

The utility model relates to a flatness detection device for a special optical filter, which comprises a rack, a placing table for placing the optical filter is arranged in the rack, a lead screw transmission system is arranged at the top of the rack, a U-shaped frame is connected below a lead screw nut in the lead screw transmission system, a first cylinder is arranged on the inner surface of the middle section of the U-shaped frame, and a second cylinder is arranged on the inner surface of the middle section of the U-shaped frame. The free end of a piston rod of the first cylinder is connected with a measuring assembly used for making contact with the surface of the optical filter, a second cylinder is arranged outside the rack located on the side face of the containing table, the free end of a piston rod of the vertically-upward second cylinder is connected with a laser sight, and a white board used for observation is arranged outside the rack located on the other side of the containing table. Due to the arrangement of the lead screw transmission system, the measuring assembly and the laser sight, the smoothness of the surface of the optical filter can be judged through the integrity of light spots on the white board, so that the optical filter is detected and selected, the outgoing quality of the optical filter is improved, and the device is suitable for industrial production and has very high practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical component detection devices, and in particular relates to a flatness detection device for a special filter. Background Art

[0002] In the existing Chinese patent database, a patent entitled "An efficient detection device for the surface flatness of a filter with a fitting and wiping function" is disclosed, with application number CN202122267891.5 and application date 2021-09-18. An efficient detection device for the surface flatness of a filter with a fitting and wiping function comprises a shell, which is the main body of the device. A laser measuring instrument is installed on the upper side of one side of the interior of the shell, a slide rail is provided on the lower surface of the interior of the shell, a slider is provided inside the slide rail, a mounting plate is installed on the upper surface of the slider, a gear is provided below the mounting plate, springs are connected on both sides of the mounting plate, the mounting groove is provided on one side of the inner wall of the shell, and pull rods are connected on both sides of the mounting groove. The other end of the pull rod is installed on both sides of the lower end of the blowing pipe, the seepage pipe is provided on one side of the inner wall of the shell, and a wiping head is connected to the top of the seepage pipe. The high-efficiency detection device for the surface flatness of a filter with a fitting and wiping function can be adapted to filters of different sizes and has a wiping function to prevent inaccurate detection results.

[0003] In the prior art, the surface flatness of filters varies after they are manufactured, and each filter needs to be inspected to pick out defective products for reprocessing. Therefore, this article aims to propose a flatness detection device for special filters, which can effectively detect the surface flatness of filters and ensure the process quality of filters. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the surface flatness of the optical filters in the prior art is different after being manufactured, and each optical filter needs to be tested. In order to improve the shortcomings, the utility model provides a flatness detection device for a special optical filter.

[0005] In order to achieve the above object, the utility model is realized by the following technical solutions:

[0006] A flatness detection device for a special filter comprises a frame, a placing table for placing the filter is arranged inside the frame, a lead screw transmission system is arranged on the top of the frame, a U-shaped frame is connected below the lead screw nut in the lead screw transmission system, a first cylinder is arranged on the inner surface of the middle section of the U-shaped frame, a measuring component for contacting the surface of the filter is connected to the free end of the piston rod of the first cylinder, a second cylinder is arranged outside the frame on the side of the placing table, a laser sight is connected to the free end of the second cylinder piston rod pointing vertically upward, and a whiteboard for observation is arranged outside the frame on the other side of the placing table.

[0007] As a preferred embodiment, the measuring assembly includes a measuring frame, which has a plurality of stepped holes horizontally spaced apart in the frame, vertical rods inserted in the stepped holes, the lower ends of the vertical rods protruding from the bottom of the measuring frame, a limiting boss is provided in the middle of the vertical rod, and the limiting boss overlaps the flange in the stepped hole.

[0008] As a preferred solution, the bottom of the vertical rod is spherical.

[0009] As a preferred solution, a control panel is provided on the side of the rack.

[0010] As a preferred solution, the measuring assembly is slidably connected between two ear plate sections of the U-shaped frame.

[0011] Compared with the prior art, the beneficial effect of the utility model is that due to the setting of the screw transmission system, the measuring component and the laser sight, the flatness of the filter surface can be judged by the completeness of the light spot on the white board, so that the filter can be inspected and selected, and the factory quality of the filter can be improved. The device is suitable for industrial production and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 Schematic diagram of the internal structure of the measurement component.

[0014] In the figure: 1 frame, 2 placement table, 3 screw drive system, 4 U-shaped frame, 5 first cylinder, 6 measuring assembly, 601 measuring frame, 602 stepped hole, 603 vertical rod, 604 limiting boss, 7 second cylinder, 8 laser sight, 9 whiteboard, 10 control screen. DETAILED DESCRIPTION

[0015] The technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0016] like Figure 1-2As shown, a flatness detection device for a special filter is provided, comprising a frame 1, a placing table 2 for placing the filter is arranged inside the frame 1, a lead screw transmission system 3 is arranged on the top of the frame 1, a U-shaped frame 4 is connected below the lead screw nut in the lead screw transmission system 3, a first cylinder 5 is arranged on the inner surface of the middle section of the U-shaped frame 4, a measuring component 6 for contacting the surface of the filter is connected to the free end of the piston rod of the first cylinder 5, a second cylinder 7 is arranged outside the frame 1 on the side of the placing table 2, a laser sight 8 is connected to the free end of the piston rod of the second cylinder 7 pointing vertically upward, and a whiteboard 9 for observation is arranged outside the frame 1 on the other side of the placing table 2. The measuring assembly 6 includes a measuring frame 601, in which a plurality of stepped holes 602 are horizontally spaced apart, and a vertical rod 603 is inserted into the stepped hole 602. The lower end of the vertical rod 603 protrudes from the bottom of the measuring frame 601, and a limiting boss 604 is provided in the middle of the vertical rod 603, and the limiting boss 604 overlaps the flange in the stepped hole 602. The bottom of the vertical rod 603 is spherical. A control panel 10 is provided on the side of the frame 1. The measuring assembly 6 is slidably connected between the two ear plate sections of the U-shaped frame 4.

[0017] When this solution is working, the operator clamps the filter to be tested on the placement table 2, controls the measuring assembly 6 to move vertically downward through the first cylinder 5 until the lower free end of the vertical rod 603 in the measuring assembly 6 contacts the upper surface of the filter, and then controls the height of the laser sight 8 through the second cylinder 7, so that the light emitted by the laser sight 8 fits with the upper surface of the measuring frame 601 in the measuring assembly 6. If the surface flatness of the filter is high, the upper ends of the vertical rods 603 are all located in the stepped holes 602, and the middle part of the light will not be blocked, so that A complete light spot is seen on the whiteboard 9. If the surface flatness of the filter is low, the upper end of part of the vertical rod 603 in the measuring component 6 will protrude from the upper surface of the measuring frame 601, thereby partially blocking the light of the laser sight 8, causing the integrity of the light spot on the whiteboard 9 to be reduced. The longitudinal position movement of the measuring component 6 is controlled by the screw transmission system 3 on the top of the frame 1, so that each position of the filter surface can be detected, and the corresponding bottom of the laser sight 8 can also move longitudinally, thereby satisfying the position movement relationship with the measuring component 6.

[0018] The present utility model is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present utility model, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model.

Claims

1. A flatness detection device for a special filter, characterized in that: The invention comprises a frame (1), wherein a placement table (2) for placing an optical filter is arranged inside the frame (1), a lead screw transmission system (3) is arranged on the top of the frame (1), a U-shaped frame (4) is connected below the lead screw nut in the lead screw transmission system (3), a first cylinder (5) is arranged on the inner surface of the middle section of the U-shaped frame (4), a free end of the piston rod of the first cylinder (5) is connected to a measuring component (6) for contacting the surface of the optical filter, a second cylinder (7) is arranged outside the frame (1) on the side of the placement table (2), a free end of the piston rod of the second cylinder (7) pointing vertically upward is connected to a laser sight (8), and a white board (9) for observation is arranged outside the frame (1) on the other side of the placement table (2).

2. The flatness detection device for a special optical filter according to claim 1, characterized in that: The measuring assembly (6) comprises a measuring frame (601), wherein a plurality of stepped holes (602) are horizontally spaced apart in the measuring frame (601), wherein a vertical rod (603) is inserted into the stepped hole (602), wherein the lower end of the vertical rod (603) protrudes out of the bottom of the measuring frame (601), and a limiting boss (604) is arranged in the middle of the vertical rod (603), wherein the limiting boss (604) overlaps the flange in the stepped hole (602).

3. The flatness detection device for a special optical filter according to claim 2, characterized in that: The bottom of the vertical rod (603) is spherical.

4. The device for detecting the flatness of a special optical filter according to claim 3, characterized in that: A control panel (10) is arranged on the side of the frame (1).

5. A flatness detection device for a special optical filter according to any one of claims 1 to 4, characterized in that: The measuring assembly (6) is slidably connected between two ear plate sections of the U-shaped frame (4).

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