Line-width-variable optical target mechanism

Abstract

The invention discloses a variable line width optical target mechanism which comprises a bottom plate and two moving plates, the two moving plates are assembled on the upper side and the lower side of the front end of the bottom plate respectively, and sliding ways are formed in the upper ends and the lower ends of the front side walls of the moving plates; stripe adjusting frames are evenly assembled between the two sliding ways from left to right, and driving blocks are installed at the left ends and the right ends of the front side walls of the upper moving plate and the lower moving plate correspondingly. A guide rail sliding block is installed on the side wall of the upper side driving block, a gear rack is installed on the side wall of the lower side driving block, and the gear rack is matched with the guide rail sliding block. A test mounting mechanism is assembled at the center of the top end of the upper side moving plate, and a micrometer head is assembled at the top end of the test mounting mechanism; a mounting hole is formed in the front side wall of the stripe adjusting frame; the line-width-variable optical target mechanism can adapt to parameters of different optical systems to adjust targets with different widths, so that the targets can be reused, the manufacturing money cost and time cost of a camera target plate are reduced, and the line-width-variable optical target mechanism is compact, light and handy in structure, convenient to carry and carry and convenient for testing.

Description

Technical Field

[0001] The invention relates to the technical field of optical testing, and in particular to a variable line width optical target mechanism. Background Art

[0002] The width of the optical target needs to be changed to adapt to different optical parameters. The target is indispensable in confirming the optical imaging quality and testing the camera imaging performance. In these applications, the quality and detection accuracy of the target are directly related to the accuracy of the system. Therefore, accurate target width and clear boundary imaging are crucial for target applications. However, traditional optical target products are mostly in the form of fixed line width, large size and heavy weight. In order to adapt to different camera imaging parameters, targets with different line widths need to be processed multiple times. Therefore, a variable line width optical target mechanism is needed to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a variable line width optical target mechanism to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a variable line width optical target mechanism, comprising a base plate and two movable plates, the two movable plates are respectively mounted on the upper and lower sides of the front end of the base plate, and slideways are provided at the upper and lower ends of the front side walls of the movable plates; Stripe adjustment frames are evenly installed between the two slideways from left to right, and driving blocks are installed at both left and right ends of the front side walls of the upper and lower moving plates; The side wall of the upper driving block is installed with a guide rail slider, and the side wall of the lower driving block is installed with a gear rack, and the gear rack and the guide rail slider cooperate; (there may be no driving block, the guide rail slider is directly installed on the moving plate, and the rack can also be directly installed on the moving plate) A test installation mechanism is installed at the top center of the upper movable plate, and a micrometer head is installed at the top of the test installation mechanism; the test installation mechanism can be omitted, and the micrometer head is the driving mechanism, and no other mechanism is required. A mounting hole is provided on the front side wall of the stripe adjustment frame, a hinge assembly is installed in the mounting hole, and a hinge rod is installed between the hinge assemblies on the upper and lower sides.

[0005] Compared with the prior art, this solution designs a variable line width optical target mechanism, which has the following beneficial effects: The scheme can reduce the size and weight of the optical target, change the line width, and use it multiple times. It can adjust targets of different widths according to the parameters of different optical systems, reduce the production cost of the camera target board, and thus facilitate carrying and testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a front view of the present invention; Figure 3 It is a schematic diagram of the test installation mechanism of the present invention; Figure 4 It is a schematic diagram of the fixed shaft, the mounting tube and the bearing rod of the present invention; Figure 5 is a schematic diagram of a hinge assembly of the present invention; Figure 6 It is a schematic structural diagram of part A of the present invention; Figure 7 It is a schematic diagram of the screw of the present invention; Figure 8 It is a schematic diagram of the anti-slip structure of the first embodiment of the present invention.

[0007] In the figure: 1 base plate, 2 moving plate, 3 stripe adjustment frame, 4 gear rack, 5 guide rail slider, 6 micrometer head, 7 mounting mechanism, 71 mounting cylinder, 72 bearing rod, 73 fixed shaft, 8 hinge assembly, 81 shaft seat a, 82 hinge shaft, 83 shaft seat b, 9 hinge rod, 10 limit ring, 11 mounting hole, 12 internal thread, 13 external thread, 14 limit ring b, 15 rubber block, 16 fixing ring, 17 limit ring a, 18 hole plug, 19 fixing plate, 20 fixing hole, 21 oil filling hole, 22 screw, 221 nut, 23 connecting plate, 24 screw hole, 25 ball, 26 rotating cavity, 27 anti-slip screw, 28 slot, 29 anti-slip screw hole, 30 anti-slip rod, 31 spiral teeth, 32 reverse thread. DETAILED DESCRIPTION

[0008] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0009] See also Figures 1 to 7, which is the first technical solution provided by the present invention: a variable line width optical target mechanism, comprising a base plate 1 and two movable plates 2, the two movable plates 2 are respectively mounted on the upper and lower sides of the front end of the base plate 1, slideways are provided at the upper and lower ends of the front side wall of the movable plate 2, and a stripe adjustment frame 3 is evenly installed between the two slideways from left to right, and driving blocks are installed at the left and right ends of the front side walls of the upper and lower movable plates 2; a guide rail slider 5 is installed on the side wall of the upper driving block, and a gear rack 4 is installed on the side wall of the lower driving block, and the gear rack 4 and the guide rail slider 5 cooperate; a test installation mechanism 7 is installed at the top center of the upper movable plate 2, and a micrometer head 6 is installed at the top of the test installation mechanism 7; a mounting hole is provided on the front side wall of the stripe adjustment frame 3, a hinge assembly 8 is installed in the mounting hole, and a hinge rod 9 is installed between the upper and lower hinge assemblies 8.

[0010] The bottom plate 1 can be a resolution stripe plate, the moving plate 2 drives the stripe adjustment frame to move, the stripe adjustment frame 3 blocks the resolution stripe plate, the gear rack 4 synchronously drives the upper and lower moving plates, the guide rail slider 5 ensures the movement accuracy of the moving plate, and the micrometer head 6 drives the moving plate to change the display resolution stripe width.

[0011] The test installation mechanism 7 includes a fixed shaft 73, a mounting tube 71 and a bearing rod 72. The fixed shaft 73 is installed at the top center of the movable plate 2. The micrometer head 6 is installed at the top of the bearing rod 72. The top of the fixed shaft 73 and the bearing rod 72 are connected by the mounting tube 71. The fixed shaft 73 is vertically fixed at the top center of the upper movable plate 2. The fixed shaft 73 and the bearing rod 72 are connected by the mounting tube 71, so that the micrometer head 6 is installed at the top of the fixed shaft 73 and then installed on the movable plate 2 at the upper end.

[0012] The upper and lower side walls of the mounting tube 71 are both provided with mounting holes 11 , the fixed shaft 73 is inserted into the mounting hole 11 on one side, and the bearing rod 72 is inserted into the mounting hole 11 on the other side.

[0013] The outer wall of the load-bearing rod 72 is provided with an external thread 13, and the inner wall of the mounting tube 71 is provided with an internal thread 12. The internal thread 12 and the external thread 13 cooperate with each other. The end of the fixed shaft 72 is located in the mounting tube 71 and a limiting ring 10 is installed. The load-bearing rod 72 is installed inside the mounting tube 71 by means of a threaded connection. The outer diameter of the limiting ring 10 is larger than the inner diameter of the mounting hole 11, thereby setting the moving range of the mounting tube 71 within the limiting ring 10.

[0014] The interior of the installation tube 71 is located outside the bearing rod 72 and a limiting ring a17 and a limiting ring b14 are sleeved thereon.

[0015] A fixing ring 16 is installed on the side wall of the limiting ring a17 facing the limiting ring b14, and rubber blocks 15 are evenly and equidistantly installed on the side wall of the fixing ring 16 along its axis.

[0016] The hinge assembly 8 includes an axle seat a81 and an axle seat b83 installed in the mounting hole, and the inside of the axle seat a81 and the axle seat b83 is installed with an articulated shaft 82, and the inner walls of the axle seat a81 and the axle seat b83 are evenly and equidistantly provided with rotation cavities 26 along their axes, and the inside of the rotation cavities 26 is installed with balls 25, and the balls 25 are arranged in contact with the outer wall of the articulated shaft 82, and the rear side walls of the axle seat a81 and the axle seat b83 are installed with fixing plates 19, and the side walls of the fixing plates 19 are provided with fixing holes 20, and the axle seats a81 and the axle seat b83 are arranged opposite to each other and are installed in the mounting hole through the fixing plates 19, and the articulated shaft 82 is installed in the combined axle seats a81 and b83.

[0017] The outer walls of the shaft seat a81 and the shaft seat b83 are provided with an oil filling hole 21, and a hole plug 18 is installed inside the oil filling hole 21. The outer walls of both sides of the shaft seat a81 and the shaft seat b83 are installed with connecting plates 23. The side walls of the connecting plate 23 are provided with screw holes 24. The inside of the screw hole 24 is screwed with a screw rod 22. The outside of the screw rod 22 is located at the lower end of the connecting plate 23 and is screwed with a nut 221. The bottom end of the screw rod 22 is equipped with an anti-slip mechanism. The oil filling hole 21 is connected to the interior of the rotating cavity 26, and lubricating oil can be added to the interior thereof. The two connecting plates 23 are connected by threaded connection, so that the shaft seat a81 and the shaft seat b83 are combined and fixed.

[0018] The anti-slip mechanism includes an anti-slip screw hole 29 opened at the bottom end of the screw rod 22, and the inner wall of the anti-slip screw hole 29 is provided with slots 28 around it. The interior of the anti-slip screw hole 29 is screwed with an anti-slip screw 27. After the screw rod 22 is screwed into the screw hole 24, the nut 221 is screwed into the outside of the screw rod 22, so that the connecting plate 23 is pushed upward to fasten the two connecting plates 21, and the screw rod 22 which is divided into four petals by the slot 28 is stretched open by the anti-slip screw 27, so as to prevent the nut 221 from falling off.

[0019] The working principle of the first embodiment: 1. Bottom plate: serves as the base of the entire target mechanism; 2. Moving plate: connected to the guide rail slider for high-precision movement, and drives the stripe adjustment frame to move along the bottom plate groove; 3. Stripe adjustment frame: driven by the moving plate to move along the bottom plate groove to adjust the resolution stripe width; 4. Gear rack: the gear rack cooperates with each other to make the upper and lower moving plates move in opposite directions and move synchronously; 5. Guide rail slider: the slider is connected to the moving plate, and cooperates with the guide rail to achieve high-precision movement; 6. Micrometer head: a micrometer head with high-precision motion accuracy drives the moving plate to translate.

[0020] See also Figures 1 to 8, which is the second technical solution provided by the present invention: a variable line width optical target mechanism, comprising a base plate 1 and two movable plates 2, the two movable plates 2 are respectively mounted on the upper and lower sides of the front end of the base plate 1, slideways are provided at the upper and lower ends of the front side wall of the movable plate 2, and a stripe adjustment frame 3 is evenly installed between the two slideways from left to right, and driving blocks are installed at the left and right ends of the front side walls of the upper and lower movable plates 2; a guide rail slider 5 is installed on the side wall of the upper driving block, and a gear rack 4 is installed on the side wall of the lower driving block, and the gear rack 4 and the guide rail slider 5 cooperate; a test installation mechanism 7 is installed at the top center of the upper movable plate 2, and a micrometer head 6 is installed at the top of the test installation mechanism 7; a mounting hole is provided on the front side wall of the stripe adjustment frame 3, a hinge assembly 8 is installed in the mounting hole, and a hinge rod 9 is installed between the upper and lower hinge assemblies 8.

[0021] The bottom plate 1 can be a resolution stripe plate, the moving plate 2 drives the stripe adjustment frame to move, the stripe adjustment frame 3 blocks the resolution stripe plate, the gear rack 4 synchronously drives the upper and lower moving plates, the guide rail slider 5 ensures the movement accuracy of the moving plate, and the micrometer head 6 drives the moving plate to change the display resolution stripe width.

[0022] The outer walls of the shaft seat a81 and the shaft seat b83 are provided with an oil filling hole 21, and a hole plug 18 is installed inside the oil filling hole 21. The outer walls of both sides of the shaft seat a81 and the shaft seat b83 are installed with connecting plates 23. The side walls of the connecting plate 23 are provided with screw holes 24. The inside of the screw hole 24 is screwed with a screw rod 22. The outside of the screw rod 22 is located at the lower end of the connecting plate 23 and is screwed with a nut 221. The bottom end of the screw rod 22 is equipped with an anti-slip mechanism. The oil filling hole 21 is connected to the interior of the rotating cavity 26, and lubricating oil can be added to the interior thereof. The two connecting plates 23 are connected by threaded connection, so that the shaft seat a81 and the shaft seat b83 are combined and fixed.

[0023] The anti-slip mechanism includes an anti-slip cylinder 33 sleeved on the outside of the screw 22, the inner wall of the anti-slip cylinder 33 is provided with a reverse thread 32 that matches the external thread of the screw 22, and anti-slip rods 30 are installed at both ends of the outer wall of the anti-slip cylinder 33. The inner wall of the anti-slip rod 30 is provided with spiral teeth 31, and the reverse thread 32 of the anti-slip cylinder 33 matches the external thread of the screw 22. Therefore, after the nut 221 is installed to the outside of the screw 22, the anti-slip cylinder 33 is screwed into the outside of the screw 22, and the top end of the anti-slip rod 30 is released from the nut 221, and the spiral teeth 31 are meshed with the outer wall of the screw 22, thereby fixing the nut 221.

[0024] The difference from the first technical solution is that the nut is fixed by different anti-slipping methods.

[0025] The other components in the second technical solution are the same as those in the first technical solution.

[0026] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A variable line width optical target mechanism, comprising a base plate (1) and two movable plates (2), characterized in that: The bottom plate (1) is provided with a slideway, and the two movable plates (2) are respectively mounted on the upper and lower sides of the front end of the bottom plate (1), and the upper and lower ends of the front side walls of the movable plates (2) are provided with slideways; Stripe adjustment frames (3) are evenly installed between the two slideways from left to right, and sliders are installed at both left and right ends of the front side walls of the upper and lower moving plates (2) and cooperate with the slide rails installed on the bottom plate (1); The upper and lower moving plates (2) are both equipped with racks that mesh with the dimensions fixed on the bottom plate (1) to drive the upper and lower moving plates (2) to move in opposite directions; A test installation mechanism (7) is installed at the center of the top end of the movable plate (2) on the upper side, and a micrometer head (6) is installed at the top end of the test installation structure (7); A mounting hole is provided on the front side wall of the stripe adjustment frame (3), a hinge assembly (8) is installed in the mounting hole, and a hinge rod (9) is installed between the hinge assemblies (8) at the upper and lower sides.

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