Life test apparatus

Abstract

The utility model belongs to optical lens testing technical field discloses a kind of life test equipment, it includes support seat, clamping assembly, angle detection component and drive assembly.Clamping assembly is set on support seat, clamping assembly is used to clamping fixed rotating part;Part of angle detection component is set on fixed part, another part of angle detection component is set on support seat;Drive assembly includes first driving part and rotating fixed part, the fixed end of first driving part is set on support seat, the output end of first driving part is connected with rotating fixed part, rotating fixed part is detachably connected with fixed part, first driving part can drive rotating fixed part to drive fixed part relative to rotating part rotation, and trigger angle detection component detects the rotation angle of fixed part.The life test equipment can replace artificial rotation life test, and it is convenient to control rotation angle, effectively improve the efficiency and accuracy of test.

Description

Technical Field

[0001] This utility model relates to the field of optical lens testing technology, and in particular to a life testing device. Background Technology

[0002] Vision lenses are an essential component of machine vision systems, directly affecting image quality and the implementation and effectiveness of algorithms. As the use of vision lenses becomes more widespread, the requirements for adjustable lens lifespan become increasingly stringent. Lens quality has become one of the most important competitive advantages, demanding not only high optical performance but also adjustable rotational lifespan that meets operational needs.

[0003] In existing technologies, lens rotation life testing mostly employs manual rotation testing, analyzing and judging the results of hundreds or thousands of cyclic rotation tests to determine the lens's lifespan standard. However, manual rotation testing has the following drawbacks: 1. It consumes a lot of manpower; 2. The angle range of each rotation cannot be guaranteed to be consistent; 3. Manual calculation of the number of rotations is prone to errors.

[0004] Therefore, there is an urgent need for a life testing device to solve the above problems. Utility Model Content

[0005] According to one aspect of this utility model, a life testing device is provided that can replace manual rotational life testing and facilitates control of the rotation angle, effectively improving the efficiency and accuracy of the test.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A life testing device for performing rotational life testing on a workpiece, the workpiece including a fixed part and a rotating part, the rotating part being rotatably disposed on the fixed part, the life testing device comprising:

[0008] Support base;

[0009] A clamping assembly is disposed on the support base, and the clamping assembly is used to clamp and fix the rotating part;

[0010] An angle detection component, a portion of which is disposed on the fixing part, and another portion of which is disposed on the support base;

[0011] The driving assembly includes a first driving member and a rotating fixing member. The fixed end of the first driving member is disposed on the support base, and the output end of the first driving member is connected to the rotating fixing member. The rotating fixing member is detachably connected to the fixing part. The first driving member can drive the rotating fixing member to rotate the fixing part relative to the rotating part and trigger the angle detection assembly to detect the rotation angle of the fixing part.

[0012] Optionally, the angle detection component includes a sensor and at least two angle detection elements. The sensor is disposed on the rotating fixing member, and the two angle detection elements are arranged in a circular array on the support base with the intersection of the rotation axis of the rotating fixing member and the support base as the center. The rotating fixing member can drive the sensor to trigger the two angle detection elements respectively.

[0013] Optionally, the sensing element includes a connecting piece and a sensing piece. The connecting piece is fixed to the rotating fixing member. The sensing piece is set at an angle to the connecting piece and extends toward the support base. The angle detection element includes a detection groove. The rotating fixing member can drive the sensing piece to rotate so that the end of the sensing piece away from the connecting piece extends into the detection groove.

[0014] Optionally, the angle detection assembly further includes a mounting ring, which is detachably mounted on the support base. The center of the mounting ring coincides with the rotation axis of the rotating fixing member, and two angle detection members are spaced apart on the mounting ring.

[0015] Optionally, the mounting ring has an annular mounting groove, the center of which coincides with the center of the mounting ring, and the two angle detection elements are spaced apart in the annular mounting groove along an arc direction.

[0016] Optionally, the angle detection element is slidably disposed within the annular mounting groove along the arc direction.

[0017] Optionally, the clamping assembly includes a mounting plate, a first clamp, and a second clamp. The mounting plate is disposed on the support base, and the first clamp and the second clamp are movably disposed on the mounting plate. The first clamp and the second clamp can move toward or away from each other to clamp or release the rotating part.

[0018] Optionally, a first clamping ring and a second clamping ring are respectively provided on the side of the first clamping jaw and the second clamping jaw facing each other. The annular openings of the first clamping ring and the second clamping ring are facing each other. The first clamping ring and the second clamping ring can respectively abut against the outer wall of the rotating part to clamp the rotating part.

[0019] Optionally, the clamping assembly further includes a second driving member, which is disposed on the mounting plate. The output end of the second driving member is connected to the first gripper and the second gripper, respectively, and the second driving member can drive the first gripper and the second gripper to move.

[0020] Optionally, it also includes a control component, which is communicatively connected to the clamping component, the angle detection component and the first drive component, respectively.

[0021] The beneficial effects of this utility model are:

[0022] This utility model provides a life testing device for performing rotational life testing on a workpiece. The workpiece includes a fixed part and a rotating part, with the rotating part rotatably mounted on the fixed part. The life testing device includes a support base, a clamping assembly, an angle detection assembly, and a drive assembly. The clamping assembly is mounted on the support base and can clamp and fix the rotating part, thereby limiting and fixing the workpiece. A portion of the angle detection assembly is mounted on the fixed part, and another portion is mounted on the support base. The drive assembly includes a first drive member and a rotating fixed member. The fixed end of the first drive member is mounted on the support base, and the output end of the first drive member is connected to the rotating fixed member. The rotating fixed member is detachably connected to the fixed part. In other words, during the workpiece life test, the first drive member drives the rotating fixed member to rotate, thereby causing the fixed part to rotate relative to the rotating part. Simultaneously, the rotation of the fixed part also causes a portion of the angle detection assembly connected to the fixed part to move, thereby triggering the angle detection assembly to detect the rotation angle of the fixed part. This life testing equipment can replace manual testing of workpiece rotational life, effectively improving testing efficiency. Furthermore, by detecting and controlling the rotation angle of the fixed part through angle detection, it effectively avoids damage to the workpiece caused by excessive rotation angle of the fixed part, making the rotation angle more standardized and the test results more accurate. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the life testing device provided in this embodiment of the utility model from one perspective;

[0025] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0026] Figure 3 This is a structural schematic diagram of the life testing device provided in this embodiment of the present invention from another perspective;

[0027] Figure 4 This is a top view of the life testing device provided in this embodiment of the utility model;

[0028] Figure 5 This is an exploded view of the life testing device provided in an embodiment of this utility model.

[0029] In the picture:

[0030] 100. Workpiece; 101. Fixed part; 102. Rotating part;

[0031] 1. Support base; 11. Support plate;

[0032] 2. Clamping assembly; 21. Mounting plate; 22. First gripper; 221. First clamping ring; 23. Second gripper; 231. Second clamping ring; 24. Second drive component;

[0033] 3. Angle detection component; 31. Sensing element; 311. Connecting piece; 312. Sensing piece; 32. Angle detection component; 321. Detection groove; 33. Mounting ring; 331. Annular mounting groove;

[0034] 4. Drive assembly; 41. First drive component; 42. Rotating fixing component;

[0035] 51. Display screen. Detailed Implementation

[0036] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for 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. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this utility model, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this utility model, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0044] 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.

[0045] like Figure 1 and Figure 3 As shown, this embodiment provides a life testing device for performing rotational life testing on the rotating part 102 of a workpiece 100. The workpiece 100 includes a fixed part 101 and a rotating part 102, with the rotating part 102 rotatably mounted on the fixed part 101. Exemplarily, the workpiece 100 may be an optical lens, with the fixed part 101 being the lens body and the rotating part 102 being a rotatable structure such as a focusing ring or an actuating aperture ring of the optical lens. Of course, the workpiece 100 may also be other components with rotatable structures; this is not limited here.

[0046] The life testing equipment includes a support base 1, a clamping assembly 2, an angle detection assembly 3, and a drive assembly 4. The clamping assembly 2 is mounted on the support base 1 and clamps and fixes the rotating part 102, thereby limiting and fixing the workpiece 100. A portion of the angle detection assembly 3 is mounted on the fixed part 101, and another portion is mounted on the support base 1. The drive assembly 4 includes a first drive member 41 and a rotating fixing member 42. The fixed end of the first drive member 41 is mounted on the support base 1, and the output end of the first drive member 41 is connected to the rotating fixing member 42. The rotating fixing member 42 is detachably connected to the fixed part 101. In other words, during the life testing of the workpiece 100, the first drive member 41 drives the rotating fixing member 42 to rotate, thereby causing the fixed part 101 to rotate relative to the rotating part 102. Simultaneously, the rotation of the fixed part 101 also causes a portion of the angle detection assembly 3 connected to the fixed part 101 to move, thereby triggering the angle detection assembly 3 to detect the rotation angle of the fixed part 101. This life testing equipment can replace manual testing of the rotational life of the workpiece 100, effectively improving testing efficiency. Furthermore, by detecting and controlling the rotation angle of the fixed part 101 through angle detection, it effectively avoids damage to the workpiece 100 caused by excessive rotation angle of the fixed part 101, making the rotation angle more standardized and the test results more accurate.

[0047] In this embodiment, when the workpiece 100 to be tested is an optical lens, the focusing ring or actuating aperture ring on the optical lens needs to undergo rotational life testing. Using the life testing equipment provided in this embodiment, the rotating part 102 (i.e., the focusing ring or actuating aperture ring) is fixed by the clamping assembly 2, and the fixed part 101 (i.e., the lens body) is driven to rotate by the first driving member 41. This method allows for testing the rotational life of multiple rotating parts 102 by adjusting the clamping position of the clamping assembly 2, while maintaining the connection between the driving assembly 4 and the fixed part 101 of the workpiece 100. Compared to the prior art method of clamping the rotating part 102 and driving the clamping member and the rotating part 102 to rotate synchronously for rotational testing, this method effectively avoids damage to the rotating part 102 caused by the clamping assembly 2 and the problem of disengagement, greatly improving the efficiency and success rate of the test.

[0048] Specifically, refer to Figures 1-3 The angle detection component 3 includes a sensor 31 and at least two angle detection elements 32. The sensor 31 is mounted on the rotating fixed component 42, and the two angle detection elements 32 are arranged in a circular array on the support base 1 with the intersection of the rotation axis of the rotating fixed component 42 and the support base 1 as the center. When the driving component 4 drives the rotating fixed component 42 to rotate, the rotating fixed component 42 can drive the sensor 31 to rotate, thereby triggering the two angle detection elements 32 respectively. Since the two angle detection elements 32 are arranged in a circular array, the central angle formed by the line connecting the two angle detection elements 32 and the center is the rotation angle of the rotating fixed component 42.

[0049] More specifically, the sensing element 31 includes a connecting piece 311 and a sensing piece 312. The connecting piece 311 is fixed to the rotating fixing member 42, and the sensing piece 312 is set at an angle to the connecting piece 311 and extends toward the support base 1. The angle detection element 32 includes a detection groove 321. The rotating fixing member 42 can drive the sensing piece 312 to rotate, so that the end of the sensing piece 312 away from the connecting piece 311 extends into the detection groove 321. When the sensing piece 312 extends into the detection groove 321, the angle detection element 32 can be triggered to detect the position of the sensing piece 312. Through the sequential triggering of the two angle detection elements 32, not only the rotation direction of the sensing piece 312 can be detected, but also the rotation angle of the sensing piece 312 can be detected.

[0050] In this embodiment, the angle detection element 32 can be selected as a slot-type photoelectric switch. A slot-type photoelectric switch (also known as a U-shaped photoelectric switch) is a through-beam infrared sensing photoelectric product, commonly used in industrial automation as a non-contact position detection device. The working principle of the slot-type photoelectric switch is that an object blocks the infrared beam within the U-shaped slot, triggering photoelectric signal conversion to achieve non-contact detection. The slot-type photoelectric switch adopts a U-shaped slot structure, with an infrared emitting tube and a receiving tube installed on both sides, forming a fixed optical axis. The emitting end (i.e., the emitting tube) continuously emits an infrared beam, while the receiving end (i.e., the receiving tube) monitors the optical path status in real time. When the object being detected (sensing element 312) enters the U-shaped slot, it blocks the infrared beam between the emitting and receiving ends. At this time, the receiving end generates an electrical signal change because it cannot receive the light signal, triggering an internal circuit state switch. After detecting the light intensity attenuation, the receiving end converts the analog signal into a digital switching signal (such as high / low level changes) through a comparator circuit, outputting a control command to complete the object position detection. Slotted photoelectric switches have advantages such as non-contact detection, fast response speed (supporting high-speed moving objects), and resistance to electromagnetic interference.

[0051] More specifically, the angle detection assembly 3 also includes a mounting ring 33. The mounting ring 33 is detachably mounted on the support base 1, and its center coincides with the rotation axis of the rotating fixing member 42. Two angle detection members 32 are spaced apart on the mounting ring 33. The mounting ring 33 provides mounting positions for the angle detection members 32. The angle detection members 32 can be pre-installed on the mounting ring 33. When detecting workpieces 100 of different diameters, since the mounting ring 33 is detachably connected to the support base 1, only the corresponding size mounting ring 33 needs to be replaced, which is simple to operate and helps to improve detection efficiency.

[0052] Furthermore, the mounting ring 33 has an annular mounting groove 331, the center of which coincides with the center of the mounting ring 33. Two angle detection elements 32 are spaced apart in the annular mounting groove 331 along an arc direction. The annular mounting groove 331 provides guidance for the installation of the angle detection elements 32, thereby ensuring that the sensing plate 312 can extend into the detection groove 321 when rotating, improving installation and detection accuracy.

[0053] In this embodiment, the angle detection element 32 is slidably disposed in the annular mounting groove 331 along the arc direction. By adjusting the position of the angle detection element 32 along the annular mounting groove 331, the size of the central angle formed by the line connecting the two angle detection elements 32 and the center of the circle can be quickly adjusted, thereby adjusting the rotation angle of the rotating fixing element 42.

[0054] Optionally, such as Figure 1 and Figures 3-5As shown, the support base 1 includes a housing and a support plate 11 covering the top opening of the housing. A first driving member 41 is disposed in the inner cavity of the housing to provide safety protection for the first driving member 41 through the housing. The workpiece 100 to be tested, the angle detection component 3, and the clamping component 2 are all disposed on the support plate 11 to facilitate operation by the operator. Exemplarily, the first driving member 41 is a motor.

[0055] Continuing, the clamping assembly 2 includes a mounting plate 21, a first gripper 22, and a second gripper 23. The mounting plate 21 is disposed on the support plate 11, and the first gripper 22 and the second gripper 23 are movably disposed on the mounting plate 21. The first gripper 22 and the second gripper 23 can move towards or away from each other to clamp or release the rotating part 102. When the first gripper 22 and the second gripper 23 clamp the rotating part 102, the operator can test the rotational life of the workpiece 100 to be tested by rotating the fixed part 101; when the first gripper 22 and the second gripper 23 release the rotating part 102, the workpiece 100 to be tested can be replaced. At the same time, the first gripper 22 and the second gripper 23 can clamp workpieces 100 of various specifications, effectively improving the compatibility and practicality of the life testing equipment.

[0056] Specifically, a first clamping ring 221 and a second clamping ring 231 are respectively provided on the opposite sides of the first gripper 22 and the second gripper 23. The annular openings of the first clamping ring 221 and the second clamping ring 231 are directly opposite each other, and the first clamping ring 221 and the second clamping ring 231 can respectively abut against the outer wall of the rotating part 102 to clamp the rotating part 102. The first clamping ring 221 and the second clamping ring 231 are adapted to the shape of the rotating part 102, resulting in a better clamping effect.

[0057] Furthermore, the first clamping ring 221 and the second clamping ring 231 can be made of materials such as silicone or rubber to increase the friction between the first clamping ring 221, the second clamping ring 231 and the rotating part 102. Alternatively, an anti-slip layer can be provided on the side of the first clamping ring 221 and the second clamping ring 231 facing each other, which also helps to improve the clamping force of the first clamping ring 221 and the second clamping ring 231 on the rotating part 102.

[0058] More specifically, the clamping assembly 2 further includes a second driving member 24, which is disposed on the mounting plate 21. The output end of the second driving member 24 is connected to the first gripper 22 and the second gripper 23 respectively. The second driving assembly 4 can drive the first gripper 22 and the second gripper 23 to move respectively. In this embodiment, the second driving assembly 4 can be selected as a cylinder.

[0059] Optionally, continue to refer to Figure 1 and Figures 3-5The lifespan testing equipment also includes a control component. The control component includes a control element (not shown) and a display screen 51. The control element is housed within the enclosure and is communicatively connected to the display screen 51, the first drive element 41, the second drive element 24, and the angle detection component 3. The control element can control the rotation angle, number of rotation steps, and number of rotations of the fixed part 101. The display screen 51 is located on the side of the enclosure facing the operator and can display the set number of rotation steps, the set target lifespan count, and the current number of actions. Exemplarily, the control element can be a PLC or a microcontroller, as is available in the prior art.

[0060] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A life testing device, characterized in that, For performing rotational life testing on a workpiece (100), the workpiece (100) includes a fixed part (101) and a rotating part (102), the rotating part (102) being rotatably disposed on the fixed part (101), the life testing device includes: Support base (1); A clamping assembly (2) is disposed on the support base (1) and is used to clamp and fix the rotating part (102). An angle detection component (3), a part of which is disposed on the fixing part (101), and another part of which is disposed on the support base (1); The drive assembly (4) includes a first drive member (41) and a rotating fixing member (42). The fixed end of the first drive member (41) is disposed on the support base (1). The output end of the first drive member (41) is connected to the rotating fixing member (42). The rotating fixing member (42) is detachably connected to the fixing part (101). The first drive member (41) can drive the rotating fixing member (42) to drive the fixing part (101) to rotate relative to the rotating part (102) and trigger the angle detection assembly (3) to detect the rotation angle of the fixing part (101).

2. The life testing equipment according to claim 1, characterized in that, The angle detection component (3) includes a sensor (31) and at least two angle detection components (32). The sensor (31) is disposed on the rotating fixing component (42). The two angle detection components (32) are arranged in a circular array on the support base (1) with the intersection of the rotation axis of the rotating fixing component (42) and the support base (1) as the center. The rotating fixing component (42) can drive the sensor (31) to trigger the two angle detection components (32) respectively.

3. The life testing equipment according to claim 2, characterized in that, The sensing element (31) includes a connecting piece (311) and a sensing piece (312). The connecting piece (311) is fixed to the rotating fixing member (42). The sensing piece (312) is set at an angle to the connecting piece (311) and extends toward the support base (1). The angle detection element (32) includes a detection groove (321). The rotating fixing member (42) can drive the sensing piece (312) to rotate so that the end of the sensing piece (312) away from the connecting piece (311) extends into the detection groove (321).

4. The life testing equipment according to claim 2, characterized in that, The angle detection component (3) further includes a mounting ring (33), which is detachably mounted on the support base (1). The center of the mounting ring (33) coincides with the rotation axis of the rotating fixing member (42), and two angle detection members (32) are spaced apart on the mounting ring (33).

5. The life testing equipment according to claim 4, characterized in that, The mounting ring (33) has an annular mounting groove (331) with the center of the annular mounting groove (331) coinciding with the center of the mounting ring (33). Two angle detection elements (32) are spaced apart in the annular mounting groove (331) along the arc direction.

6. The life testing equipment according to claim 5, characterized in that, The angle detection element (32) is slidably disposed in the annular mounting groove (331) along the arc direction.

7. The life testing equipment according to any one of claims 1-6, characterized in that, The clamping assembly (2) includes a mounting plate (21), a first clamp (22) and a second clamp (23). The mounting plate (21) is disposed on the support base (1). The first clamp (22) and the second clamp (23) are movably disposed on the mounting plate (21). The first clamp (22) and the second clamp (23) can move toward or away from each other to clamp or release the rotating part (102).

8. The life testing equipment according to claim 7, characterized in that, The first clamping jaw (22) and the second clamping jaw (23) are respectively provided with a first clamping ring (221) and a second clamping ring (231) on the side facing each other. The annular openings of the first clamping ring (221) and the second clamping ring (231) are facing each other. The first clamping ring (221) and the second clamping ring (231) can respectively abut against the outer wall of the rotating part (102) to clamp the rotating part (102).

9. The life testing equipment according to claim 7, characterized in that, The clamping assembly (2) further includes a second driving member (24), which is disposed on the mounting plate (21). The output end of the second driving member (24) is connected to the first gripper (22) and the second gripper (23) respectively. The second driving member (24) can drive the first gripper (22) and the second gripper (23) to move respectively.

10. The life testing equipment according to any one of claims 1-6, characterized in that, It also includes a control component, which is communicatively connected to the clamping component (2), the angle detection component (3) and the first drive component (41).

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