Split type lens real shooting jig

Abstract

The utility model discloses a split type lens real shooting jig. The jig comprises a displacement platform which comprises a fixed end at the front part of the platform and a sliding table capable of moving back and forth along a first direction; the clamp is arranged at the fixed end, and the clamp is composed of a fixed block and a pressing plate which are sequentially arranged in the first direction; the fixing block and the pressing plate are matched to form a cavity, and a first mounting part and a second mounting part are arranged at the center of the fixing block and the center of the pressing plate respectively; and the sliding block is arranged on the sliding table and is provided with a mounting plate parallel to the pressing plate. The utility model solves the problems that the real shooting jig of the zoom lens with small back focus is difficult to take and place, the lens cannot be fixed, and the sensor is easy to collide and scratch.

Description

Technical Field

[0001] The utility model relates to the technical field of lens fixtures, in particular to a split-type lens actual shooting fixture. Background Art

[0002] When actually shooting and detecting a lens, focusing is generally performed by adjusting the distance between the lens and the sensor. In the existing actual shooting fixtures, the lens and the sensor are fixed separately and focusing is performed by adjusting the relative positions. At present, for some zoom lenses, the theoretical back focus is extremely small and the space between the lens and the sensor is narrow, making it difficult to pick up and place the lens and impossible to fix it by conventional methods, and the sensor is easily collided and scratched. Summary of the Utility Model

[0003] In view of this, the purpose of the present utility model is to provide a split-type lens actual shooting fixture, which solves the problems that it is difficult to pick up and place the actual shooting fixture of a zoom lens with a small back focus, the lens cannot be fixed, and the sensor is easily collided and scratched.

[0004] According to one aspect of the present utility model, there is provided a split-type lens actual shooting fixture, including:

[0005] A displacement platform, which includes a fixed end at the front of the platform and a sliding table that can move back and forth along a first direction; and,

[0006] A fixture provided at the fixed end, which is composed of a fixed block and a pressing plate arranged in sequence along the first direction; a cavity is formed by the cooperation of the fixed block and the pressing plate, and a first mounting portion and a second mounting portion are respectively arranged at the centers of the fixed block and the pressing plate;

[0007] A slider provided on the sliding table, and an installation plate parallel to the pressing plate is arranged on the slider.

[0008] In the above technical solution, the lens can be picked up and placed conveniently, can be used for batch production, and the lens can also be fixed when the space is narrow.

[0009] In some embodiments, the first mounting portion adopts a waist-shaped hole that is wide at both ends and narrow in the middle.

[0010] In the above technical solution, the front-end butterfly shape (waist-shaped hole) enables the lens to be placed with the lens cap and is convenient to remove after placement, reducing scratches.

[0011] In some embodiments, the fixed block is a C-shaped member composed of two side plates and a front plate, the pressing plate is located on the opposite side of the front plate, and the fixed block and the pressing plate are magnetically connected.

[0012] In the above technical solution, the magnetic connection is convenient for installation.

[0013] In some embodiments, the pressing plate is composed of a front pressing plate, a middle pressing plate, and a rear pressing plate arranged in parallel; among them,

[0014] The front pressing plate and the rear pressing plate are connected to form a receiving cavity, the middle pressing plate is slidably arranged in the receiving cavity, and is provided with a plurality of springs for sliding the middle pressing plate towards the front pressing plate.

[0015] In the above technical solution, the middle pressing plate can avoid the rear-end structure of the lens by limiting sliding, so as to avoid scratching the lens.

[0016] In some embodiments, the fixing block and the pressing plate are assisted and matched by a positioning mechanism.

[0017] In the above technical solution, the auxiliary cooperation of the positioning mechanism can improve the installation accuracy.

[0018] In some embodiments, the mounting plate is slidably connected to the slider, and a magnetic attraction device is arranged between the two.

[0019] In the above technical solution, the mounting plate slides for avoidance, so that the sensor mounted on the mounting plate can avoid collision and scratching; and because a magnetic attraction device is arranged between the two and is respectively equipped with magnets, the mounting plate and the slider are attached due to the suction force under the test state, so as to be stable during the actual shooting detection.

[0020] In some embodiments, the displacement platform is provided with scales at the sliding table.

[0021] In the above technical solution, through the scales, it is convenient to read the moving distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic exploded view of the structure of an embodiment of a split lens actual shooting fixture of the present invention;

[0024] Figure 2 It is a schematic view of an embodiment of a split lens actual shooting fixture of the present invention under assembly, where ① is a three-dimensional structure schematic view of the right front side, and ② is a three-dimensional structure schematic view of the left rear side;

[0025] Figure 3 It is a schematic exploded view of the structure of the right rear side of an embodiment of a split lens actual shooting fixture of the present invention;

[0026] Figure 4 It is a schematic diagram of the fixed block structure of an embodiment of a split lens actual shooting fixture of the present utility model; among them, ① is the three-dimensional structure diagram of the right rear side, ② is the structure diagram in the direction of fixed block A, and ③ is the structure diagram in the direction of fixed block B.

[0027] Figure 5 It is a schematic diagram of the pressing plate structure of an embodiment of a split lens actual shooting fixture of the present utility model; among them, ① is the three-dimensional structure diagram of the pressing plate, ② is the exploded structure diagram in the direction of pressing plate C, and ③ is the exploded structure diagram in the direction of pressing plate D;

[0028] Figure 6 It is a schematic diagram of the lens installation of an embodiment of a split lens actual shooting fixture of the present utility model;

[0029] Figure 7 It is a schematic diagram of the mounting plate and slider of an embodiment of a split lens actual shooting fixture of the present utility model; among them, ① is the schematic diagram of the lower front side, ② is the schematic diagram of the lower rear side, and ③ is the schematic diagram of the upper front side;

[0030] Figure 8 It is a schematic diagram of the structure of an embodiment of a split lens actual shooting fixture of the present utility model in the working state. Specific embodiments

[0031] The following combines the accompanying drawings and embodiments to make a further detailed description of the present utility model. It should be particularly noted that the following embodiments are only used to illustrate the present utility model, but do not limit the scope of the present utility model. Similarly, the following embodiments are only partial embodiments of the present utility model rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present utility model.

[0032] The present utility model provides a split lens actual shooting fixture, which solves the problems that it is difficult to pick up and place the actual shooting fixture of a zoom lens with a small back focus, the lens cannot be fixed, and the sensor is easily collided and scratched.

[0033] Embodiment 1

[0034] Please refer to Figure 1 、 Figure 2 and Figure 3, A split - type lens actual - shooting fixture, comprising: a displacement platform 1, the platform 1 including a fixed end 11 at the front of the platform and a sliding table 12 that can move back and forth along the first direction Y; and a fixture provided at the fixed end 11, the fixture being composed of a fixed block 2 and a pressing plate 3 arranged in sequence along the first direction Y. The displacement platform 1 is provided with a scale 15 at the sliding table 12, and through the scale, it is convenient to read the moving distance. The structure set in this embodiment makes it convenient to pick up and place the lens, can be used for mass production, and can also fix the lens when the space is narrow.

[0035] Among them, for the fixed block 2, please refer to Figure 4 , the fixed block 2 is a C - shaped component composed of two side plates 22 and a front plate 21. Combining Figure 1 and Figure 2 , the pressing plate 3 is located on the opposite side of the front plate 21, and a number of connection holes are provided at the connection points of the fixed block 2 and the pressing plate 3. Magnets 4 are placed in the connection holes, so that the fixed block 2 and the pressing plate 3 can be positioned by magnetic attraction connection. At the same time, the fixed block 2 is connected to the fixed end 11 through a connecting plate 13, and the connecting plate 13 and the fixed block 2 are positioned by a positioning pin 14; the purpose of such a setting is to facilitate the replacement of the fixed block and ensure the positioning accuracy. At the same time, the magnetic attraction connection is convenient for installation.

[0036] Among them, for the pressing plate 3, please refer to Figure 5 , the pressing plate 3 is composed of a front pressing plate 31, a middle pressing plate 32, and a rear pressing plate 33 arranged in parallel; combining Figure 1 , Figure 2 , Figure 3 and Figure 5 , the front pressing plate 31 and the rear pressing plate 33 are connected to form a receiving cavity 3 - 1, the middle pressing plate 32 is slidably arranged in the receiving cavity 3 - 1, and is provided with a number of springs 35 for making the middle pressing plate 32 slide forward towards the front pressing plate 31. Specifically, the springs 35 are assembled between the middle pressing plate 32 and the rear pressing plate 33, and the two ends respectively abut against the middle pressing plate 32 and the rear pressing plate 33. When in use, overcoming the action of the springs 35, the middle pressing plate is moved backward, and then the lens is placed into the fixture; the lens is clamped by the middle pressing plate 32 and the front plate 21. Therefore, the slidable setting of the middle pressing plate 32 can avoid the rear - end structure of the lens and prevent scratching the lens.

[0037] Please refer to Figure 1 , Figure 2 , the fixed block 2 and the pressing plate 3 cooperate to form a cavity 1 - 2. The fixed block 2 and the pressing plate 3 are respectively provided with a number of positioning holes and are assisted in cooperation by a positioning pin 34. At the centers of the fixed block 2 and the pressing plate 3, a first mounting portion 21 and a second mounting portion 38 are respectively provided; the cavity 1 - 2 is used for placing the lens, and the first mounting portion 21 and the second mounting portion 38 are used for fixing the front and rear ends of the lens. Please refer to Figure 6Among them, the first installation part 21 is in a butterfly shape, that is, the installation holes are wide - narrow - wide in sequence along the normal direction of the first direction Y. The butterfly shape enables the lens to be placed with the lens cap and is convenient to remove after placement.

[0038] A slider 16 is arranged on the sliding table 12, and an installation plate 5 parallel to the pressure plate 3 is arranged on the slider 16. At the same time, a positioning pin 17 is arranged between the slider 16 and the connecting plate 13 for auxiliary positioning.

[0039] Among them, for the installation plate 5, please refer to Figure 7 , the installation plate 5 further includes a bottom plate 51 extending along the first direction Y and a connecting part 52 extending in the vertically downward direction of the first direction Y at the tail end of the bottom plate 51; two relief holes are arranged on the connecting part 52; corresponding threaded holes and magnet installation positions are arranged on the wall surfaces of the slider 16 corresponding to the two relief holes; two guiding bolts 6 pass through the two relief holes and are thread - connected to install the installation plate 5 and the slider 16, and the installation plate 5 can move forward and backward in the first direction Y through the non - threaded area 61 of the guiding bolt 6. At the same time, the magnet installation position is used to place the magnet 53. The sensor installation part 54 of the installation plate 5 is used to install the sensor. The installation plate slides to avoid collision and scratching, and because a magnetic attraction device with magnets is arranged between the two, the installation plate and the slider are attached due to suction in the test state, so as to be stable during actual shooting detection.

[0040] The installation process is as follows:

[0041] Please refer to Figure 8 , the magnet and the positioning post are respectively fixed to the fixed block 2, the pressure plate 3, the installation plate 5, the connecting plate 13, and the slider 16 by dispensing. The connecting plate 13 is connected to the displacement platform 1 by bolts, the slider 16 is connected to the sliding table 12 by bolts, the sensor is fixed to the installation plate 5 by dispensing, the guiding bolt 6 is connected to the slider 16 through screw thread matching, the installation plate 5 is connected to the slider 16 through the guiding bolt 6 and has a certain stroke, the lens is placed in the fixed block 1 through the positioning post for limitation, the pressure plate 2 is connected to the fixed block 1 through the positioning post and the magnet and fixes the lens, and the fixed block 1 is placed on the connecting plate 13 through the positioning post.

[0042] The working principle is as follows:

[0043] Since the fixing block 2 and the pressing plate 3 are respectively provided with magnets and are connected by the suction force of the magnets, and since the middle pressing plate 32 is under the spring pressure, after the pressing plate 3 and the fixing block 2 are connected, the middle pressing plate 32 applies pressure to the lens, thereby fixing the lens. Since the fixing block 2 can be taken and placed, the lens can be fixed and then placed on the overall jig, which makes it convenient to take and place the lens and can avoid the rear-end structure of the lens. Since the mounting plate 5 is connected to the slider 16 through the guiding bolt 6, the mounting plate 5 has a certain movable distance. During the taking and placing process of the fixing block 2, the mounting plate 5 can be manually slid to avoid, so that the sensor is prevented from being collided and scratched. Since the mounting plate 5 and the slider 16 are respectively provided with magnets, the mounting plate 5 fits due to the suction force under the test state, so that the actual shooting detection is stable. Since the sliding table 12 can adjust the position by rotating the knob, the position of the mounting plate 5 can be adjusted, so that the lens is focused clearly.

[0044] The above are only some embodiments of the present invention, and thus do not limit the protection scope of the present invention. Any equivalent device or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A split-type lens actual shooting fixture, characterized in that Including: A displacement platform, which includes a fixed end at the front of the platform and a slide that can move back and forth along a first direction; And, A fixture provided at the fixed end, which is composed of a fixed block and a pressing plate arranged in sequence along the first direction; the fixed block and the pressing plate cooperate to form a cavity, and a first mounting portion and a second mounting portion are respectively provided at the centers of the fixed block and the pressing plate; A slider provided on the slide, and the slider is provided with a mounting plate parallel to the pressing plate.

2. The split lens actual shooting fixture according to claim 1, characterized in that, The first mounting portion adopts a waist-shaped hole that is wide at both ends and narrow in the middle.

3. The split lens actual shooting fixture according to claim 1, characterized in that, The fixed block is a C-shaped member composed of two side plates and a front plate, the pressing plate is located on the opposite side of the front plate, and the fixed block and the pressing plate are magnetically connected.

4. The split lens actual shooting fixture according to claim 1 or 3, characterized in that, The pressing plate is composed of a front pressing plate, a middle pressing plate, and a rear pressing plate arranged in parallel; wherein, The front pressing plate and the rear pressing plate are connected to form a receiving cavity, the middle pressing plate is slidably arranged in the receiving cavity, and is provided with a plurality of springs for making the middle pressing plate slide towards the front pressing plate.

5. The split lens actual shooting fixture according to claim 1 or 3, characterized in that, The fixed block and the pressing plate are assisted in cooperation by a positioning mechanism.

6. The split lens actual shooting fixture according to claim 1, characterized in that, The mounting plate is slidably connected to the slider, and magnetic positioning is adopted between the slider and the mounting plate.

7. The split lens actual shooting fixture according to claim 1, characterized in that, The displacement platform is provided with a scale at the slide.

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