Zoom movement test fixing jig

Abstract

The utility model belongs to the technical field of zoom movement testing, and particularly relates to a zoom movement testing fixing jig which comprises a bottom plate and a supporting frame, a fixing device is arranged on the upper surface of the bottom plate, and the fixing device comprises a positioning unit, a fixing unit and a tension unit. According to the zoom machine core test fixing jig, the zoom machine core is placed on one side of the fixing unit, then the sliding block plate is pushed to move on the sliding rail from left to right, and therefore the machine core positioning plate at the top of the sliding block plate is driven to move rightwards till the right side surface of the machine core positioning plate makes contact with the outer surface of the zoom machine core, and the zoom machine core is clamped and positioned in cooperation with the fixing unit; after the zoom movement is clamped on the fixed back plate, the thrust generated by the zoom movement pushes the fixed back plate to slightly move rightwards along the stud and extrudes the thrust spring, the elasticity of the thrust spring pushes the fixed back plate to move leftwards, and two strands of opposite forces are matched to fix and position the zoom movement, so that the zoom movement is prevented from being clamped too tightly, and the service life of the zoom movement is prolonged. And the zoom movement is damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of zoom movement testing, in particular to a zoom movement testing fixing fixture. Background Art

[0002] Generally speaking, a surveillance camera is divided into the front end and the back end. The front end is the camera part, and the back end is the processing and storage part. The zoom mechanism belongs to the front end, which mainly includes optical lenses, imaging chips, control circuit boards, etc., and can be separated from the camera independently. It basically determines the picture of a camera, such as pixels, clarity, field of view, depth of field and other factors that affect the shooting picture.

[0003] The zoom movement is an important component of the camera. During the production process of the zoom movement, the zoom movement needs to be inspected and tested. The current zoom movement testing process cannot be tightened, the maximum test magnification is difficult to align with the test drawing, the production efficiency is low, and there are deviations in the test. Therefore, there are certain limitations.

[0004] For this reason, we urgently need to provide a zoom movement test fixture. Utility Model Content

[0005] The purpose of the utility model is to provide a zoom movement test fixture to solve the problems of the existing zoom movement test process proposed in the above background technology, such as the inability to tighten, the difficulty in aligning the maximum test magnification with the test drawing, low production efficiency and test deviation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a zoom movement test fixture, comprising a base plate and a support frame, the two support frames are respectively fixedly connected to the front and rear ends of the right side of the upper surface of the base plate, and a fixing device is provided on the upper surface of the base plate.

[0007] The fixing device comprises a positioning unit, a fixing unit and a pulling unit.

[0008] Said Positioning unit It includes a slide rail, a slider plate, a limit plate, and a movement positioning plate. The slide rail is fixedly connected to the left side of the upper surface of the bottom plate, the slider plate is slidably connected to the slide rail, the two limit plates are respectively fixedly connected to the left and right ends of the slide rail, and the movement positioning plate is fixedly connected to the top of the limit plate. First, the zoom movement is placed on one side of the fixed unit, and then the slider plate is pushed to move from left to right on the slide rail, thereby driving the movement positioning plate on the top of the slider plate to move to the right until its right side surface contacts the outer surface of the zoom movement, thereby cooperating with the fixed unit to clamp and position the zoom movement.

[0009] A further improvement is that the fixing unit includes a fixed back plate, a stud, and a thrust spring. The fixed back plate is arranged on the left side of the support frame. Studs are respectively installed on the four corners of the outer surface of the fixed back plate. The four thrust springs are arranged around the outer surfaces of the four studs.

[0010] A further improvement is that a threaded hole is respectively opened in the upper middle part of the left outer surface of the support frame, and the stud is threadedly connected to the inside of the threaded hole. After the zoom movement is pushed and clamped on the fixed back plate by the movement positioning plate moving to the right, the thrust generated pushes the fixed back plate to move slightly to the right along the stud. At the same time, the fixed back plate squeezes the thrust spring, and the elasticity of the thrust spring itself pushes the fixed back plate to move to the left. The two relative forces cooperate to fix the zoom movement in position, thereby avoiding excessive clamping and causing damage to the zoom movement.

[0011] A further improvement is that the tension unit includes a fixing bolt and a tension spring, the two fixing bolts are respectively installed at the front end of the upper surface of the slider plate and the front end of the right outer surface of the bottom plate, and the left and right ends of the tension spring are respectively fixed by two fixing bolts. Before fixing the zoom movement, the slider plate is pulled to the left to stretch the tension spring, and then one side of the zoom movement is placed on the fixed back plate. After that, the slider plate is released, and the tension spring is reset under the action of its own elasticity, thereby pulling the slider plate and the movement positioning plate on top of it to move to the right, thereby realizing automatic clamping and fixing, without the need for manpower to push the slider plate, thus avoiding excessive manpower force and squeezing and damaging the zoom movement.

[0012] A further improvement is that there are two groups of tension units, which are symmetrically installed on the front and rear sides of the base plate with the center line of the base plate as the axis, and the two tension springs cooperate with each other to make the tension more uniform and the pulling more stable.

[0013] A further improvement is that the movement positioning plate and the fixed back plate correspond horizontally, and a zoom movement is clamped and fixed between the two. The horizontally corresponding movement positioning plate and the fixed back plate can better clamp and fix the zoom movement.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The zoom movement test fixture places the zoom movement on one side of the fixing unit, and then pushes the slider plate to move from left to right on the slide rail, thereby driving the movement positioning plate on the top of the slider plate to move to the right until its right side surface contacts the outer surface of the zoom movement, thereby cooperating with the fixing unit to clamp and position the zoom movement.

[0016] 2. The zoom movement test fixture, after the zoom movement is clamped on the fixed back plate, the thrust it generates pushes the fixed back plate to move slightly to the right along the stud and squeezes the thrust spring, and the elasticity of the thrust spring itself pushes the fixed back plate to the left. The two relative forces cooperate to fix the zoom movement in place, avoiding over-tightening and damage to the zoom movement.

[0017] 3. The zoom movement test fixing fixture, before fixing the zoom movement, pull the slider plate to the left to stretch the tension spring, then place one side of the zoom movement on the fixed back plate, then release the slider plate, the tension spring resets under the action of its own elasticity, thereby pulling the slider plate and the movement positioning plate on top of it to move to the right, thereby achieving automatic clamping and fixing, without the need for manual labor to push the slider plate, avoiding excessive manual force and squeezing and damaging the zoom movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view structural schematic diagram of the utility model;

[0019] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0020] Figure 3 It is a right side structural schematic diagram of the utility model;

[0021] Figure 4 It is a left side structural schematic diagram of the utility model.

[0022] In the figure: 1, bottom plate; 2, support frame; 301, slide rail; 302, slider plate; 303, limit plate; 304, movement positioning plate; 305, fixed back plate; 306, stud; 307, thrust spring; 308, fixing bolt; 309, tension spring; 4, zoom movement. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0025] Embodiment 1: A zoom movement test fixture comprises a base plate 1 and a support frame 2, wherein the two support frames 2 are respectively fixedly connected to the front and rear ends of the right side of the upper surface of the base plate 1, and a fixing device is arranged on the upper surface of the base plate 1.

[0026] The fixing device comprises a positioning unit and a fixing unit.

[0027] The positioning unit includes a slide rail 301, a slider plate 302, a limit plate 303, and a movement positioning plate 304. The slide rail 301 is fixedly connected to the left side of the upper surface of the base plate 1, the slider plate 302 is slidably connected to the slide rail 301, and the two limit plates 303 are respectively fixedly connected to the left and right ends of the slide rail 301. The movement positioning plate 304 is fixedly connected to the top of the limit plate 303. First, the zoom movement 4 is placed on one side of the fixed unit, and then the slider plate 302 is pushed to move from left to right on the slide rail 301, thereby driving the movement positioning plate 304 on the top of the slider plate 302 to move to the right until its right side surface contacts the outer surface of the zoom movement 4, thereby cooperating with the fixed unit to clamp and position the zoom movement 4.

[0028] The fixing unit includes a fixing back plate 305 , a stud 306 , and a thrust spring 307 . The fixing back plate 305 is arranged on the left side of the support frame 2 . The four corners of the outer surface of the fixing back plate 305 are respectively installed with studs 306 . Four thrust springs 307 are arranged around the outer surfaces of the four studs 306 .

[0029] A threaded hole is provided in the upper middle part of the left outer surface of the support frame 2, and the stud 306 is threadedly connected to the inside of the threaded hole. After the zoom movement 4 is pushed and clamped on the fixed back plate 305 by the movement positioning plate 304 moving to the right, the thrust generated pushes the fixed back plate 305 to move slightly to the right along the stud 306. At the same time, the fixed back plate 305 squeezes the thrust spring 307, and the elasticity of the thrust spring 307 itself pushes the fixed back plate 305 to move to the left. The two relative forces cooperate to fix the zoom movement 4 in place, avoiding excessive clamping and damage to the zoom movement 4.

[0030] The movement positioning plate 304 and the fixed back plate 305 correspond horizontally, and the zoom movement 4 is clamped and fixed between the two. The horizontally corresponding movement positioning plate 304 and the fixed back plate 305 can better clamp and fix the zoom movement 4.

[0031] Embodiment 2: On the basis of embodiment 1, the fixing device also includes a tension unit, and the tension unit includes a fixing bolt 308 and a tension spring 309. The two fixing bolts 308 are respectively installed at the front end of the upper surface of the slider plate 302 and the front end of the right outer surface of the bottom plate 1. The left and right ends of the tension spring 309 are respectively fixed by the two fixing bolts 308. Before fixing the zoom movement 4, the slider plate 302 is pulled to the left to stretch the tension spring 309. Subsequently, one side of the zoom movement 4 is placed on the fixed back plate 305. After that, the slider plate 302 is released. The tension spring 309 is reset under the action of its own elasticity, thereby pulling the slider plate 302 and the movement positioning plate 304 on its top to move to the right, thereby realizing automatic clamping and fixing. There is no need for manpower to push the slider plate 302, thereby avoiding excessive manpower force and squeezing and damaging the zoom movement 4.

[0032] There are two groups of tension units, which are symmetrically installed on the front and rear sides of the bottom plate 1 with the center line of the bottom plate 1 as the axis. The two tension springs 309 cooperate with each other to make the tension more uniform and the pulling more stable.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A zoom movement test fixture, comprising a base plate (1) and a support frame (2), wherein two support frames (2) are respectively fixedly connected to the front and rear ends of the right side of the upper surface of the base plate (1), characterized in that: A fixing device is provided on the upper surface of the bottom plate (1); The fixing device comprises a positioning unit, a fixing unit and a tension unit; The positioning unit comprises a slide rail (301), a slider plate (302), a limit plate (303), and a movement positioning plate (304); the slide rail (301) is fixedly connected to the left side of the upper surface of the bottom plate (1); the slider plate (302) is slidably connected to the slide rail (301); the two limit plates (303) are respectively fixedly connected to the left and right ends of the slide rail (301); and the movement positioning plate (304) is fixedly connected to the top of the limit plate (303).

2. A zoom movement test fixture according to claim 1, characterized in that: The fixing unit comprises a fixing back plate (305), a stud (306), and a thrust spring (307); the fixing back plate (305) is arranged on the left side of the support frame (2); the studs (306) are respectively installed at four corners of the outer surface of the fixing back plate (305); and four thrust springs (307) are arranged around the outer surfaces of the four studs (306).

3. A zoom movement test fixture according to claim 2, characterized in that: A threaded hole is respectively provided in the upper middle portion of the left outer surface of the support frame (2), and the stud (306) is threadedly connected to the inside of the threaded hole.

4. The zoom movement test fixture according to claim 1, characterized in that: The tension unit comprises a fixing bolt (308) and a tension spring (309), wherein the two fixing bolts (308) are respectively mounted on the front end of the upper surface of the slider plate (302) and the front end of the right outer surface of the bottom plate (1), and the left and right ends of the tension spring (309) are respectively fixed by the two fixing bolts (308).

5. A zoom movement test fixture according to claim 4, characterized in that: There are two groups of tension units in total, and the two groups of tension units are symmetrically installed on the front and rear sides of the bottom plate (1) with the center line of the bottom plate (1) as the axis.

6. A zoom movement test fixture according to claim 2, characterized in that: The movement positioning plate (304) corresponds horizontally to the fixed back plate (305), and a zoom movement (4) is clamped and fixed between the two.

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