Line-width-variable optical target mechanism

Abstract

The utility model discloses a variable line width optical target mechanism, which comprises a bottom plate and two moving plates, the two moving plates are respectively assembled on the upper side and the lower side of the front end of the bottom plate, and the upper end and the lower end of the front side wall of each moving plate are respectively provided with a slide way; 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 utility model relates to optical testing technical field, concretely is a kind of variable line width optical target mechanism. BACKGROUND

[0002] Optical target width needs to adapt to different optical parameters to change target width, in confirming optical imaging quality, test camera imaging performance, target is indispensable, in these applications, the quality and detection precision of target are directly related to the accuracy of system, therefore, target width is accurate, and boundary imaging is clear to target application is important;

[0003] However, the traditional optical target product is mostly fixed line width form, size is big, weight is big, to adapt to different camera imaging parameters, different line width target needs to be processed multiple times, therefore, a kind of variable line width optical target mechanism is needed to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of variable line width optical target mechanism to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of variable line width optical target mechanism, including bottom plate and two moving plates, two the moving plate is respectively assembled on the upper and lower sides of the front end of bottom plate, the front side wall of the moving plate is evenly provided with slide on upper and lower ends;

[0006] Two the slide between from left to right are evenly assembled with stripe adjustment frame, and the front side wall of the upper and lower moving plates is installed with driving block on left and right ends;

[0007] The sidewall of upper side the driving block is installed with guide rail sliding block, and the sidewall of lower side the driving block is installed with gear rack, the gear rack and guide rail sliding block are matched;(can not have driving block, guide rail sliding block is directly installed to moving plate, rack can also be directly installed to moving plate)

[0008] The top center of upper side the moving plate is assembled with test installation mechanism, and the top of test installation mechanism is assembled with micrometer head;Test installation mechanism can be omitted, and micrometer head is driving mechanism, and other mechanisms are not needed

[0009] The front side wall of the stripe adjustment frame is provided with mounting hole, the mounting hole is assembled with hinged component, and hinged rod is assembled between the hinged component of upper and lower sides.

[0010] Compared with prior art, the present scheme designs a kind of variable line width optical target mechanism, with the following beneficial effects:

[0011] The scheme can reduce the optical target size and weight variable line width, can be used multiple times, can adjust the target with different width according to the parameters of different optical systems, can reduce the camera target plate manufacturing cost, and is convenient to carry and test. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of the utility model;

[0013] Figure 2 It is a front view of the utility model;

[0014] Figure 3 It is a schematic view of the test installation mechanism of the utility model;

[0015] Figure 4 It is a schematic view of the fixed shaft, installation cylinder and bearing rod of the utility model;

[0016] Figure 5 It is a schematic view of the hinged assembly of the utility model;

[0017] Figure 6 It is a schematic view of the A part structure of the utility model;

[0018] Figure 7 It is a schematic view of the screw rod of the utility model

[0019] Figure 8 It is a schematic view of the anti-drop structure of the first embodiment of the utility model.

[0020] In the drawing: 1 bottom plate, 2 moving plate, 3 stripe adjustment frame, 4 gear rack, 5 guide rail sliding block, 6 micrometer head, 7 test installation mechanism, 71 installation cylinder, 72 bearing rod, 73 fixed shaft, 8 hinged assembly, 81 shaft seat a, 82 hinged shaft, 83 shaft seat b, 9 hinged rod, 10 limit ring, 11 mounting hole, 12 internal thread, 13 external thread, 14 limit ring b, 15 rubber block, 16 fixed ring, 17 limit ring a, 18 hole plug, 19 fixed plate, 20 fixed hole, 21 oil injection hole, 22 screw rod, 221 nut, 23 connecting plate, 24 screw hole, 25 ball, 26 rotating cavity, 27 anti-drop screw rod, 28 slot, 29 anti-drop screw hole, 30 anti-drop rod, 31 helical tooth, 32 reverse thread. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1 to 7 The utility model provides a first kind of technical scheme: a variable line width optical target mechanism, including bottom plate 1 and two moving plate 2, two moving plate 2 are assembled respectively on the upper and lower sides of the front end of bottom plate 1, and the upper and lower ends of the front side wall of moving plate 2 are all provided with slide, and the even stripe adjustment frame 3 is assembled between the two slides from left to right, and the left and right ends of the front side wall of the upper and lower moving plate 2 are all installed with drive block, the side wall of the upper side drive block is installed with guide rail sliding block 5, the side wall of the lower side drive block is installed with gear rack 4, and the gear rack 4 and guide rail sliding block 5 are matched, the top center of the upper moving plate 2 is assembled with test installation mechanism 7, and the top of test installation mechanism 7 is assembled with micrometer head 6, the front side wall of stripe adjustment frame 3 is provided with mounting hole, and the mounting hole is assembled with hinged component 8, and the hinged component 8 between the upper and lower sides is assembled with hinged rod 9.

[0023] Bottom plate 1 can distinguish resolution stripe board, moving plate 2 drives stripe adjustment frame to move, stripe adjustment frame 3 shields resolution stripe board, gear rack 4 synchronously drives the upper and lower two moving plates, guide rail sliding block 5 guarantees the movement accuracy of moving plate, and micrometer head 6 drives moving plate to change display resolution stripe width.

[0024] The test installation mechanism 7 includes a fixed shaft 73, an installation cylinder 71 and a bearing rod 72, the fixed shaft 73 is installed at the top center of the moving 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 through the installation cylinder 71, the fixed shaft 73 is vertically fixed at the top center of the upper moving plate 2, the fixed shaft 73 and the bearing rod 72 are connected through the installation cylinder 71, so that the micrometer head 6 is installed at the top of the fixed shaft 73, and then installed on the moving plate 2 at the top.

[0025] The upper and lower side walls of the installation cylinder 71 are provided with mounting holes 11, the fixed shaft 73 is inserted into one side mounting hole 11, and the bearing rod 72 is inserted into the other side mounting hole 11.

[0026] The outer wall of the bearing rod 72 is provided with external threads 13, the inner wall of the installation cylinder 71 is provided with internal threads 12, the internal threads 12 and the external threads 13 are matched, the end of the fixed shaft 72 is provided with a limiting ring 10 in the installation cylinder 71, the bearing rod 72 is installed in the installation cylinder 71 by means of threaded connection, the outer diameter of the limiting ring 10 is greater than the inner diameter of the mounting hole 11, so that the movement range of the installation cylinder 71 is set in the limiting ring 10.

[0027] The inside of the installation cylinder 71 is sleeved with a limiting ring a 17 and a limiting ring b 14 outside the bearing rod 72.

[0028] The side wall of the limiting ring a17 facing the limiting ring b14 is provided with a fixed ring 16, and the side wall of the fixed ring 16 is uniformly and equidistantly provided with rubber blocks 15 along the axis.

[0029] The hinge assembly 8 comprises shaft seats a81 and b83 installed in the mounting holes, the hinge shaft 82 is installed in the shaft seats a81 and b83, the hinge rod 9 is connected to the hinge shaft 82, the inner walls of the shaft seats a81 and b83 are uniformly and equidistantly provided with rotating cavities 26 along the axis, the rotating cavities 26 are internally provided with balls 25, the balls 25 are arranged in close contact with the outer wall of the hinge shaft 82, the rear walls of the shaft seats a81 and b83 are provided with fixed plates 19, the side wall of the fixed plate 19 is provided with a fixed hole 20, the shaft seats a81 and b83 are oppositely arranged and installed in the mounting holes through the fixed plate 19, and the hinge shaft 82 is installed in the combined shaft seats a81 and b83.

[0030] The outer walls of the shaft seats a81 and b83 are provided with oil injection holes 21, the oil injection holes 21 are internally provided with hole plugs 18, the outer walls of the shaft seats a81 and b83 are both provided with connecting plates 23, the side wall of the connecting plate 23 is provided with a threaded hole 24, the threaded hole 24 is internally screwed with a screw rod 22, the outer part of the screw rod 22 is screwed with a nut 221 at the lower end of the connecting plate 23, the bottom end of the screw rod 22 is provided with an anti-loosening mechanism, the oil injection hole 21 is in communication with the inside of the rotating cavity 26, and lubricating oil can be added to the inside, the two connecting plates 23 are connected through the threaded connection, so that the shaft seats a81 and b83 are combined and fixed.

[0031] The anti-loosening mechanism comprises an anti-loosening threaded hole 29 formed in the bottom end of the screw rod 22, the inner wall of the anti-loosening threaded hole 29 is provided with a slot 28 around, the anti-loosening threaded hole 29 is internally screwed with an anti-loosening screw rod 27, after the screw rod 22 is screwed into the threaded hole 24, and the nut 221 is screwed into the outer part of the screw rod 22, the two connecting plates 23 are fastened by pushing up the connecting plate 23, and the screw rod 22 which is divided into four parts by the slot 28 is expanded by the anti-loosening screw rod 27, so as to prevent the nut 221 from falling off.

[0032] The working principle of the first embodiment is as follows: 1, the bottom plate is the base body of the entire target mechanism; 2, the moving plate is linked with the guide rail slider for high-precision movement, and drives the stripe adjustment frame to move along the bottom plate groove; 3, the stripe adjustment frame is driven by the moving plate to move along the bottom plate groove to adjust the resolution stripe width; 4, the gear and rack are matched with each other to make the moving plates move in opposite directions and synchronously; 5, the guide rail slider is connected with the moving plate and cooperates with the guide rail to achieve high-precision movement; 6, the micrometer head is a high-precision micrometer head, which drives the moving plate to translate.

[0033] Please refer to Figures 1 to 8The utility model provides a second technical scheme: A variable line width optical target mechanism, including bottom plate 1 and two moving plate 2, two moving plate 2 are respectively assembled on the upper and lower sides of the front end of bottom plate 1, and the upper and lower ends of the front side wall of moving plate 2 are provided with slide, and the left and right of two slides are uniformly provided with stripe adjusting frame 3, and the left and right ends of the front side wall of upper and lower moving plate 2 are all installed with drive block, the side wall of upper side drive block is installed with guide rail sliding block 5, the side wall of lower side drive block is installed with gear rack 4, and gear rack 4 and guide rail sliding block 5 are matched, the top center of upper moving plate 2 is assembled with test installation mechanism 7, and the top of test installation mechanism 7 is assembled with micrometer head 6, the front side wall of stripe adjusting frame 3 is provided with mounting hole, and the mounting hole is assembled with hinged component 8, and hinged rod 9 is assembled between the upper and lower hinged components 8.

[0034] Bottom plate 1 discernible resolution stripe board, moving plate 2 drives stripe adjusting frame to move, stripe adjusting frame 3 shields discernible resolution stripe board, gear rack 4 synchronously drives two moving plates, guide rail sliding block 5 guarantees moving plate movement accuracy, and micrometer head 6 drives moving plate to change display resolution stripe width.

[0035] The outer wall of the shaft seat a81 and the shaft seat b83 is provided with an oil injection hole 21, the inside of the oil injection hole 21 is provided with a hole plug 18, the two side walls of the shaft seat a81 and the shaft seat b83 are provided with a connecting plate 23, the side wall of the connecting plate 23 is provided with a screw hole 24, the inside of the screw hole 24 is screwed with a screw rod 22, the outside of the screw rod 22 is screwed with a nut 221 at the lower end of the connecting plate 23, the bottom end of the screw rod 22 is provided with an anti-dropping mechanism, the oil injection hole 21 is connected with the inside of the rotating cavity 26, the inside of the rotating cavity 26 can be added with lubricating oil, the two connecting plates 23 are connected by the threaded connection, so that the shaft seat a81 and the shaft seat b83 are combined and fixed.

[0036] The anti-dropping mechanism includes a anti-dropping cylinder 33 sleeved on the outside of the screw rod 22, the inner wall of the anti-dropping cylinder 33 is provided with a reverse thread 32 matched with the outer thread of the screw rod 22, the outer wall of the anti-dropping cylinder 33 is provided with an anti-dropping rod 30 at both ends, the inner wall of the anti-dropping rod 30 is provided with a helical tooth 31, the reverse thread 32 of the anti-dropping cylinder 33 is matched with the outer thread of the screw rod 22, so that after the nut 221 is installed on the outside of the screw rod 22, the anti-dropping cylinder 33 is screwed into the outside of the screw rod 22, the top end of the anti-dropping rod 30 is separated from the nut 221, the helical tooth 31 is engaged with the outer wall of the screw rod 22, so that the nut 221 is fixed.

[0037] The difference between the first and second technical solutions is that the nut is fixed by different anti-dropping methods.

[0038] The other components in the second technical solution are the same as those in the first technical solution.

[0039] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0040] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment according to the present specification needs to exhibit each and every characteristic specified in the present specification. The specification can also be described in terms of a single preferred embodiment, it being understood that this single preferred embodiment can exhibit not every aspect or feature of the present specification. The specification can also be described in terms of a generic statement that the disclosure can include one, some, or all of a list of features. It is further understood that the specification is to be considered as a whole and not with reference to a single feature or design element alone.

Claims

1. A variable linewidth optical target mechanism, comprising a base plate (1) and two movable plates (2), characterized in that: The base plate (1) has a slide rail, and the two movable plates (2) are respectively assembled on the upper and lower sides of the front end of the base plate (1). The upper and lower ends of the front sidewall of the movable plate (2) are provided with slide rails. Striped adjustment frames (3) are evenly fitted between the two slides from left to right. Sliders are installed on the left and right ends of the front sidewalls of the upper and lower movable plates (2) and cooperate with the slide rails installed on the base plate (1). Both the upper and lower movable plates (2) are equipped with racks, which mesh with the dimensions fixed on the base plate (1) to drive the upper and lower movable plates (2) to move in opposite directions; A test mounting mechanism (7) is mounted at the top center of the upper movable plate (2), and a micrometer head (6) is mounted at the top of the test mounting mechanism (7). The front side wall of the stripe adjustment frame (3) is provided with a mounting hole, and a hinge assembly (8) is installed in the mounting hole. A hinge rod (9) is installed between the upper and lower sides of the hinge assembly (8).

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