Displacement platform and camera focusing test equipment

Abstract

The utility model discloses a displacement platform and camera focusing test equipment, and belongs to the technical field of precise instruments. The displacement platform comprises a base, a sliding block and a driving assembly, and a first mounting piece is arranged on one side of the base; the sliding block is slidably connected to the base, and a second mounting piece is arranged on the side, facing the first mounting piece, of the sliding block. The driving assembly and the first installation part are arranged on the same side of the base, the driving assembly comprises a driving device and a driving part, the driving device is installed on the first installation part, one end of the driving part is fixedly connected to the driving device, and the other end of the driving part is fixedly connected to the second installation part. The driving device is used for driving the driving piece to drive the second mounting piece to move in the connecting line direction of the first mounting piece and the second mounting piece so as to drive the sliding block to slide relative to the base. According to the utility model, smooth and accurate resetting of the sliding block can be ensured, the possibility of clamping stagnation of the displacement platform is reduced, the risk of faults of the displacement platform is reduced, and the reliability and stability of the displacement platform are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to precision instrument technical field, especially a displacement platform and camera focus testing equipment. BACKGROUND

[0002] In the related art, the displacement platform usually adopts the screw rod driving mode to realize the movement of the sliding block, specifically, the screw rod is matched with the stopper arranged on the sliding block, when the screw rod rotates, the stopper moves, and then drives the sliding block to displace relative to the base. However, when the screw rod is separated from the stopper, in order to ensure that the sliding block can return to the initial position, a spring is usually arranged between the base and the sliding block, so as to drive the sliding block to reset by the resilience of the spring. When the weight of the load borne on the sliding block is large, the resilience provided by the spring device is difficult to overcome the weight of the sliding block and the load, so that the sliding block cannot reset. SUMMARY

[0003] The utility model aims at solving one of the technical problems in the prior art. Therefore, the utility model provides a displacement platform, which can ensure that the sliding block can reset smoothly and accurately, and reduce the possibility of the displacement platform being stuck.

[0004] The utility model further provides a camera focus testing equipment comprising the displacement platform.

[0005] According to the displacement platform of the first aspect of the utility model, the base, the sliding block and the driving assembly are provided, one side of the base is provided with the first mounting piece, the sliding block is slidably connected to the base, one side of the sliding block facing the first mounting piece is provided with the second mounting piece, the driving assembly and the first mounting piece are arranged on the same side of the base, the driving assembly comprises the driving device and the driving piece, the driving device is installed on the first mounting piece, one end of the driving piece is fixedly connected to the driving device, the other end is fixedly connected to the second mounting piece, the driving device is used for driving the driving piece to drive the second mounting piece to move along the connecting line direction of the first mounting piece and the second mounting piece, so as to drive the sliding block to slide relative to the base.

[0006] According to the displacement platform of the utility model, at least the following beneficial effects are provided:

[0007] The displacement platform of the embodiment of the utility model drives the driving part to drive the second mounting piece to move along the connecting direction of the first mounting piece and the second mounting piece, to drive the sliding block to slide relative to the base, relative to the spring's resilience to drive the sliding block to reset, the fixed connection of the driving part and the second mounting piece can ensure that the sliding block can reset smoothly and accurately, reduce the possibility of the displacement platform's jamming phenomenon, reduce the risk of the displacement platform's failure, improve the reliability and stability of the displacement platform.

[0008] According to some embodiments of the utility model, the driving device includes adjusting part and driving rod, the adjusting part includes fixed part and knob part that are connected with each other, the fixed part is connected with the first mounting piece, the knob part and the driving rod are screw connected, the knob part can rotate along its axial direction to drive the driving rod to move towards or away from the second mounting piece, and the driving rod is connected with the driving part.

[0009] According to some embodiments of the utility model, the driving part includes first connecting part and second connecting part, one end of the first connecting part is sleeved on the driving rod and is fixedly connected with the driving rod, the other end is fixedly connected with the second connecting part, the driving rod can drive the first connecting part and the second connecting part to rotate, and the second connecting part is rotatably connected with the second mounting piece.

[0010] According to some embodiments of the utility model, the fixed part and the second connecting part are columnar structures, the first mounting piece is provided with a first mounting hole, the fixed part is arranged in the first mounting hole, the second mounting piece is provided with a second mounting hole, the second mounting hole is coaxially arranged with the first mounting hole, a first bearing is arranged in the second mounting hole, and the second connecting part is arranged in the first bearing.

[0011] According to some embodiments of the utility model, the second mounting hole penetrates the second mounting piece along the connecting direction of the first mounting piece and the second mounting piece, a second bearing is further arranged in the second mounting hole, the second bearing is arranged in a spaced manner with the first bearing, and the second connecting part is arranged in the first bearing and the second bearing in sequence.

[0012] According to some embodiments of the utility model, one end of the second connecting part away from the first connecting part is provided with a connecting hole, the connecting hole exposes the surface of the second mounting piece, and the displacement platform further includes a first fastener, the first fastener is arranged in the connecting hole to limit the second connecting part from being separated from the second bearing.

[0013] According to some embodiments of the present invention, the first mounting member includes a third connecting part and a fourth connecting part that are connected to each other. The third connecting part and the fourth connecting part are arranged sequentially along the direction of the base toward the slider. The third connecting part is fixedly connected to the side wall of the base. The fourth connecting part is located on one side of the slider and is spaced apart from the slider. The first mounting hole is formed in the fourth connecting part.

[0014] According to some embodiments of the present invention, the side wall of the fourth connecting part is provided with a through hole communicating with the first mounting hole, and the displacement platform further includes a second fastener, which passes through the through hole and abuts against the outer peripheral wall of the fixing part to restrict the movement of the adjusting member.

[0015] According to some embodiments of the present invention, the base is provided with at least two first slide rails spaced apart, and the slider is provided with at least two second slide rails. The at least two second slide rails are arranged in a one-to-one correspondence with the at least two first slide rails. The second slide rails and the first slide rails extend along the line connecting the first mounting member and the second mounting member, respectively. The second slide rail is located on one side of the first slide rail, and the second slide rail and the first slide rail slide in cooperation.

[0016] The camera focusing test device according to a second aspect embodiment of the present invention includes the displacement platform described in the first aspect embodiment.

[0017] The camera focus testing device according to the embodiments of the present utility model has at least the following beneficial effects:

[0018] The camera focusing test equipment adopts the displacement platform of the first aspect embodiment. By setting a first mounting member on one side of the base and a second mounting member on the side of the slider facing the first mounting member, the driving device can be mounted on the first mounting member. The driving member is fixedly connected to the driving device and the second mounting member respectively. Based on this, the driving device can drive the driving member to move the second mounting member along the line connecting the first and second mounting members, so as to drive the slider to slide relative to the base. Compared with relying solely on the spring force to drive the slider to reset, the fixed connection between the driving member and the second mounting member can ensure that the slider can be reset smoothly and accurately, reducing the possibility of jamming of the displacement platform, reducing the risk of displacement platform failure, improving the reliability and stability of the displacement platform, and thus reducing the possibility of test interruption or inaccurate test results caused by displacement platform failure, thereby improving the reliability and accuracy of the camera focusing test equipment.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a structural schematic diagram (first view) of a displacement platform according to an embodiment of the present invention;

[0022] Figure 2 This is an exploded view of a displacement platform according to an embodiment of the present invention;

[0023] Figure 3 This is a structural schematic diagram (second perspective) of a displacement platform according to an embodiment of the present invention;

[0024] Figure 4 This is a structural schematic diagram (third-view) of a displacement platform according to an embodiment of the present invention.

[0025] Icon labels:

[0026] Displacement platform 1000;

[0027] Base 100; First mounting component 110; First mounting hole 111; Third connecting part 112; Fourth connecting part 113; Through hole 1131; First slide rail 120;

[0028] Slider 200; Second mounting component 210; Second mounting hole 211; Second slide rail 220;

[0029] Drive assembly 300; drive device 310; adjusting member 311; fixing part 3111; knob part 3112; drive rod 312; drive member 320; first connecting part 321; second connecting part 322; connecting hole 3221;

[0030] First bearing 400;

[0031] Second bearing 500. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0035] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0036] In existing displacement platform technologies, screw drive is a common method for achieving slider movement. This mechanism works through the interaction of a screw and a stop on the slider: when the screw rotates, the stop moves along the screw's helical path, thereby causing the slider to displace relative to the base. To ensure that the slider accurately returns to its initial position after displacement, a spring device is traditionally installed between the base and the slider. The spring's restoring force is used to drive the slider to reset after the screw disengages from the stop.

[0037] It should be noted that the slider's reset process relies on the spring's tension. Therefore, in screw-driven slider designs, the screw and the stop are typically not directly connected. When the screw rotates and drives the slider, it achieves this process simply by contacting the stop and applying a pushing force. However, when the slider bears a heavy load, the spring force may be insufficient to overcome the weight of the slider and load, preventing the slider from resetting smoothly and causing a malfunction in the displacement platform.

[0038] Therefore, some embodiments of this utility model propose a displacement platform 1000, suitable for camera focusing test equipment, as detailed below. Figures 1 to 4 The displacement platform 1000 is described in the figure.

[0039] Reference Figure 1 and Figure 2As shown in the present invention, the displacement platform 1000 includes a base 100, a slider 200 and a drive assembly 300. The base 100 and the slider 200 are arranged along the height direction of the displacement platform 1000. The slider 200 is slidably connected to the base 100. For example, the slider 200 can slide relative to the base 100 along the length direction of the displacement platform 1000.

[0040] Continue to refer to Figure 1 and Figure 2 As shown, a first mounting member 110 is provided on one side of the base 100 along the width direction of the displacement platform 1000, and the first mounting member 110 is fixedly connected to the side wall of the base 100. A second mounting member 210 is provided on the side of the slider 200 facing the first mounting member 110. The second mounting member 210 and the first mounting member 110 are located on the same side of the base 100, and the second mounting member 210 is fixedly connected to the side wall of the slider 200. It should be noted that the first mounting member 110 and the base 100 can be integrally formed, or they can be connected by fasteners, or they can be connected by other types of fastening connection methods. This embodiment does not limit this. The second mounting member 210 and the slider 200 can be integrally formed, or they can be connected by fasteners, or they can be connected by other types of fastening connection methods. This embodiment does not limit this.

[0041] Reference Figure 1 and Figure 2 As shown, in this embodiment of the present invention, the drive assembly 300 and the first mounting member 110 are located on the same side of the base 100. The drive assembly 300 includes a drive device 310 and a drive member 320. The drive device 310 is mounted on the first mounting member 110, and one end of the drive member 320 is fixedly connected to the drive device 310, and the other end is fixedly connected to the second mounting member 210. It can be understood that the drive device 310 is indirectly connected to the second mounting member 210 through the drive member 320. In this embodiment, the drive device 310 can drive the drive member 320 to move along the line connecting the first mounting member 110 and the second mounting member 210. Based on this, the drive member 320 can drive the second mounting member 210 to move, thereby causing the slider 200 to slide relative to the base 100. It should be noted that the drive device 310 can be a screw, a motor, or a cylinder, etc., and this embodiment does not limit this.

[0042] The displacement platform 1000 of this utility model embodiment has a first mounting member 110 on one side of the base 100 and a second mounting member 210 on the side of the slider 200 facing the first mounting member 110. This allows the drive device 310 to be mounted on the first mounting member 110, and the drive member 320 to be fixedly connected to the drive device 310 and the second mounting member 210 respectively. Based on this, the drive device 310 can drive the drive member 320 to move the second mounting member 210 along the line connecting the first mounting member 110 and the second mounting member 210, thereby causing the slider 200 to slide relative to the base 100. Compared to relying solely on the spring force to drive the slider 200 to reset, the fixed connection between the drive member 320 and the second mounting member 210 ensures that the slider 200 can reset smoothly and accurately, reducing the possibility of jamming in the displacement platform 1000, reducing the risk of malfunction in the displacement platform 1000, and improving the reliability and stability of the displacement platform 1000.

[0043] Reference Figure 2 As shown in the embodiment of this utility model, the driving device 310 includes an adjusting member 311 and a driving rod 312. The adjusting member 311 includes a fixing part 3111 and a knob part 3112 connected to each other. The fixing part 3111 is connected to the first mounting member 110. Specifically, the fixing part 3111 is fixedly connected to the first mounting member 110, which can be a snap-fit ​​connection or a fastening connection. This embodiment does not limit this. The knob part 3112 and the driving rod 312 are threadedly connected. It can be understood that the fixing part 3111 can be a hollow structure. The knob part 3112 and the driving rod 312 are respectively inserted into the fixing part 3111, and the knob part 3112 and the driving rod 312 are connected inside the fixing part 3111.

[0044] In this embodiment of the invention, the knob portion 3112 is rotatable along its axial direction, thereby driving the drive rod 312 to rotate while moving towards or away from the second mounting member 210. The drive rod 312 is connected to the drive member 320, therefore, the drive rod 312 can drive the drive member 320 to move. It is understood that the knob portion 3112 can be rotated by a human hand, a robotic arm, or a drive device; this embodiment does not limit this. In one example, when the knob portion 3112 rotates clockwise, the drive rod 312 can drive the drive member 320 to rotate clockwise and move towards the second mounting member 210; when the knob portion 3112 rotates counterclockwise, the drive rod 312 can drive the drive member 320 to rotate counterclockwise and move away from the second mounting member 210.

[0045] Continue to refer to Figure 2As shown, in this embodiment of the present invention, the driving member 320 includes a first connecting portion 321 and a second connecting portion 322. One end of the first connecting portion 321 is sleeved on and fixedly connected to the driving rod 312, and the other end is fixedly connected to the second connecting portion 322. In this embodiment, the first connecting portion 321 and the second connecting portion 322 can be integrally formed or fixedly connected to each other. The end of the first connecting portion 321 facing the driving rod 312 can be provided with a slot that matches the driving rod 312, and the driving rod 312 passes through the slot. The first connecting portion 321 and the driving rod 312 can be connected by fasteners or by interference fit, etc., and this embodiment does not limit this. It is understood that the driving rod 312 can drive the first connecting portion 321 and the second connecting portion 322 to rotate, and based on this, the second connecting portion 322 is rotatably connected to the second mounting member 210.

[0046] Reference Figure 1 and Figure 2 As shown, in this embodiment of the present invention, the fixing part 3111 and the second connecting part 322 are columnar structures. The first mounting member 110 is provided with a first mounting hole 111, the size of which is suitable for the fixing part 3111 to pass through. The fixing part 3111 passes through the first mounting hole 111. The second mounting member 210 is provided with a second mounting hole 211, which is coaxially arranged with the first mounting hole 111. A first bearing 400 is provided in the second mounting hole 211, and the second connecting part 322 passes through the first bearing 400. Based on this, since the adjusting member 311 drives the driving rod 312 to move and rotate it, the first connecting part 321 and the second connecting part 322 will rotate with the rotation of the driving rod 312. Only the setting of the first bearing 400 can enable the second connecting part 322 to be fixedly connected to the second mounting member 210 while rotating.

[0047] Reference Figure 2 and Figure 3As shown, in this embodiment of the present invention, the second mounting hole 211 extends through the second mounting member 210 along the line connecting the first mounting member 110 and the second mounting member 210. A second bearing 500 is also provided in the second mounting hole 211, and the second bearing 500 is spaced apart from the first bearing 400. Specifically, the first bearing 400 is located in the second mounting hole 211 near the end of the first mounting member 110, and the second bearing 500 is located in the second mounting hole 211 near the end of the first mounting member 110. Based on this, the second connecting portion 322 is sequentially inserted through the first bearing 400 and the second bearing 500. In one example, the first bearing 400 and the second bearing 500 are interference-fitted with the second mounting hole 211. The arrangement of the first bearing 400 and the second bearing 500 can further enhance the connection stability between the second connecting portion 322 and the second mounting member 210, while reducing the possibility of slippage of the second connecting portion 322, ensuring that the driving member 320 can drive the slider 200 to move through the second mounting member 210.

[0048] Reference Figure 3 As shown in this embodiment of the invention, the second connecting portion 322 has a connecting hole 3221 at one end facing away from the first connecting portion 321. It can be understood that when the second connecting portion 322 passes through the first bearing 400 and the second bearing 500, the opening direction of the connecting hole 3221 faces away from the direction of the first mounting member 110. Therefore, the connecting hole 3221 exposes the surface of the second mounting member 210. Based on this, the displacement platform 1000 also includes a first fastener, which passes through the connecting hole 3221, thereby achieving a tight connection between the second connecting portion 322 and the first bearing 400 and the second bearing 500, preventing the second connecting portion 322 from detaching from the second bearing 500, and improving the connection stability between the second connecting portion 322 and the first bearing 400 and the second bearing 500.

[0049] Reference Figure 2 and Figure 3 As shown, in this embodiment of the present invention, the first mounting member 110 includes a third connecting portion 112 and a fourth connecting portion 113 connected to each other. In one example, the third connecting portion 112 and the fourth connecting portion 113 are integrally formed. The third connecting portion 112 and the fourth connecting portion 113 are arranged sequentially along the direction from the base 100 toward the slider 200. It is understood that, in order to make the first mounting hole 111 and the second mounting hole 211 coaxial, the fourth connecting portion 113 is located on one side of the base 100. The third connecting portion 112 is fixedly connected to the side wall of the base 100. In this embodiment, the third connecting portion 112 and the base 100 can be connected by fasteners or by welding; this embodiment does not limit this. The fourth connecting portion 113 is spaced apart from the slider 200 to prevent interference with the movement of the slider 200. The first mounting hole 111 is formed in the fourth connecting portion 113. Figure 3As shown, in one example, the slider 200 is located on the upper side of the base 100, the second mounting member 210 is located at the same height as the slider 200, the third connecting part 112 is at the same height as the base 100, and the fourth connecting part 113 is located on the upper side of the third connecting part 112 and at the same height as the second mounting member 210.

[0050] Continue to refer to Figure 2 and Figure 3 As shown in this embodiment of the present invention, the side wall of the fourth connecting part 113 is provided with a through hole 1131 communicating with the first mounting hole 111. The displacement platform 1000 also includes a second fastener. The second fastener is adapted to pass through the through hole 1131 and abuts against the outer peripheral wall of the fixing part 3111 to restrict the movement of the adjusting member 311, thereby improving the installation stability of the adjusting member 311 and ensuring that it can accurately drive the driving rod 312 to move.

[0051] Reference Figure 1 and Figure 4 As shown in this embodiment of the invention, the base 100 is provided with at least two first slide rails 120 spaced apart, and the slider 200 is provided with at least two second slide rails 220. The at least two second slide rails 220 correspond one-to-one with the at least two first slide rails 120. The second slide rails 220 and the first slide rails 120 extend along the line connecting the first mounting member 110 and the second mounting member 210, respectively. In one example, two first slide rails 120 and two second slide rails 220 are provided. The first slide rails 120 and the second slide rails 220 extend along the length of the displacement platform 1000. The second slide rail 220 is located on one side of the first slide rail 120, and the second slide rail 220 and the first slide rail 120 slide in a sliding fit, thereby limiting the movement direction of the slider 200 and ensuring the accuracy of the displacement platform 1000.

[0052] An embodiment of this utility model also proposes a camera focusing test device (not shown in the figure), which includes the displacement platform 1000 of the above embodiment.

[0053] It is understood that the camera focusing test equipment uses the displacement platform 1000 of the above embodiment. By setting a first mounting member 110 on one side of the base 100 and a second mounting member 210 on the side of the slider 200 facing the first mounting member 110, the driving device 310 can be mounted on the first mounting member 110. The driving member 320 is fixedly connected to the driving device 310 and the second mounting member 210 respectively. Based on this, the driving device 310 can drive the driving member 320 to move the second mounting member 210 along the line connecting the first mounting member 110 and the second mounting member 210, so as to drive the slider 200. The sliding of the slider 200 relative to the base 100, compared to the slider 200 being driven to reset by the spring force alone, ensures that the slider 200 can be reset smoothly and accurately by the fixed connection between the driving component 320 and the second mounting component 210. This reduces the possibility of jamming of the displacement platform 1000, reduces the risk of failure of the displacement platform 1000, and improves the reliability and stability of the displacement platform 1000. In turn, it reduces the possibility of test interruption or inaccurate test results caused by the failure of the displacement platform 1000, and improves the reliability and accuracy of the camera focusing test equipment.

[0054] Since the camera focusing test equipment adopts all the technical solutions of the displacement platform 1000 in the above embodiments, it has at least all the beneficial effects brought about by the technical solutions in the above embodiments, which will not be repeated here.

[0055] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A displacement platform, characterized in that, include: The base has a first mounting component on one side; A slider is slidably connected to the base, and a second mounting member is provided on the side of the slider facing the first mounting member; A driving assembly is located on the same side of the base as the first mounting member. The driving assembly includes a driving device and a driving member. The driving device is mounted on the first mounting member. One end of the driving member is fixedly connected to the driving device, and the other end is fixedly connected to the second mounting member. The driving device is used to drive the driving member to move the second mounting member along the line connecting the first mounting member and the second mounting member, so as to drive the slider to slide relative to the base.

2. The displacement platform according to claim 1, characterized in that, The driving device includes an adjusting component and a driving rod. The adjusting component includes a fixed part and a knob part that are connected to each other. The fixed part is connected to the first mounting component. The knob part is threadedly connected to the driving rod. The knob part is rotatable along its axial direction to drive the driving rod to move toward or away from the second mounting component. The driving rod is connected to the driving component.

3. The displacement platform according to claim 2, characterized in that, The driving component includes a first connecting part and a second connecting part. One end of the first connecting part is sleeved on the driving rod and fixedly connected to the driving rod, and the other end is fixedly connected to the second connecting part. The driving rod can drive the first connecting part and the second connecting part to rotate. The second connecting part is rotatably connected to the second mounting component.

4. The displacement platform according to claim 3, characterized in that, The fixing part and the second connecting part are columnar structures. The first mounting member is provided with a first mounting hole. The fixing part passes through the first mounting hole. The second mounting member is provided with a second mounting hole. The second mounting hole is coaxially arranged with the first mounting hole. A first bearing is provided in the second mounting hole. The second connecting part passes through the first bearing.

5. The displacement platform according to claim 4, characterized in that, The second mounting hole extends through the second mounting member along the line connecting the first mounting member and the second mounting member. A second bearing is also provided in the second mounting hole. The second bearing is spaced apart from the first bearing. The second connecting part passes through the first bearing and the second bearing in sequence.

6. The displacement platform according to claim 5, characterized in that, The second connecting part has a connecting hole at one end opposite to the first connecting part, the connecting hole exposing the surface of the second mounting part, and the displacement platform also includes a first fastener, which passes through the connecting hole to prevent the second connecting part from disengaging from the second bearing.

7. The displacement platform according to claim 4, characterized in that, The first mounting component includes a third connecting portion and a fourth connecting portion that are connected to each other. The third connecting portion and the fourth connecting portion are arranged sequentially along the direction from the base toward the slider. The third connecting portion is fixedly connected to the side wall of the base. The fourth connecting portion is located on one side of the slider and is spaced apart from the slider. The first mounting hole is formed in the fourth connecting portion.

8. The displacement platform according to claim 7, characterized in that, The side wall of the fourth connecting part is provided with a through hole that connects to the first mounting hole. The displacement platform also includes a second fastener, which passes through the through hole and abuts against the outer peripheral wall of the fixing part to restrict the movement of the adjusting member.

9. The displacement platform according to claim 1, characterized in that, The base is provided with at least two first slide rails spaced apart, and the slider is provided with at least two second slide rails. The at least two second slide rails are provided in a one-to-one correspondence with the at least two first slide rails. The second slide rails and the first slide rails extend along the line connecting the first mounting member and the second mounting member, respectively. The second slide rail is located on one side of the first slide rail, and the second slide rail and the first slide rail slide together.

10. A camera focus testing device, characterized in that, Includes the displacement platform as described in any one of claims 1 to 9.

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