Spherical lens multi-angle compression resistance detection equipment

Abstract

The invention, which relates to the technical field of lens detection, discloses a spherical lens multi-angle compression resistance detection device comprising a main body, a lateral sliding clamping mechanism, a connection driving frame and a descending mechanism. Three groups of lateral sliding clamping mechanisms are triangularly distributed, a lateral sensor module is combined to accurately detect the radial compression resistance of the side surface of a lens and simulate the stress environment when the lens and a lens frame are assembled, a driving mechanism and a descending mechanism are linked through a connecting mechanism, and an annular electromagnet controls an inserting block to be separated from an inserting hole after lateral detection reaches the standard. The axial pressure head independently carries out axial compression resistance detection under the condition of keeping a lateral clamping state, multi-angle detection is completed through one-time clamping, the positioning error caused by multiple times of clamping is avoided, the detection efficiency and the data consistency are improved, the axial sensor module and the lateral sensor module work cooperatively, the pressure value is accurately recorded, and the detection precision is improved. A reliable basis is provided for lens quality judgment, and the requirements for accuracy and high efficiency of batch detection of optical lenses are met.

Description

Technical Field

[0001] This invention relates to the field of lens testing technology, specifically to a multi-angle pressure resistance testing device for spherical lenses. Background Technology

[0002] In the quality inspection of spherical lenses, the compressive strength test is a crucial step, as its results directly affect the reliability of the lens in actual application scenarios, such as whether it can withstand external forces without breaking or deforming during assembly, transportation, and use. Currently, the industry commonly uses the method of testing the compressive strength of the spherical surface and the side surface of the spherical lens separately. However, due to the significant differences in structural morphology between the spherical surface and the side surface of a spherical lens, existing technologies require the use of different tooling fixtures to clamp and fix the lens. Specifically, when testing the spherical surface, a fixture that matches the curvature of the spherical surface is required, while when testing the side surface, a fixture that matches the characteristics of the side plane or cylindrical surface is required. This operation, which involves frequently changing tooling fixtures due to different test locations, inevitably requires the lens to be repositioned and adjusted between tests. Even if the standardized procedures are strictly followed during the operation, it is difficult to completely eliminate the slight deviations caused by repositioning. These deviations directly affect the accuracy of pressure application, resulting in a lack of consistent benchmarks between the two test results. Ultimately, this leads to test data that cannot accurately reflect the actual compressive strength of the spherical lens, causing confusion in the judgment of lens quality, reducing testing efficiency, and increasing manpower and time costs. Summary of the Invention

[0003] Therefore, the purpose of this invention is to provide a multi-angle pressure resistance testing device for spherical lenses to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a multi-angle pressure resistance testing device for spherical lenses, comprising a main body, wherein a fixing column is fixed inside the main body, and a support plate is fixed on the top of the fixing column; The top triangular part of the support plate is slidably connected to a lateral sliding clamping mechanism, which is used to apply radial pressure to the side of the lens to achieve the function of lateral pressure resistance detection. A lowering mechanism is sleeved on the outside of the fixed column, and the top of the axial sliding cylinder of the lowering mechanism and the three sets of lateral sliding clamping mechanisms are connected by a connecting inclined plate. The axial sliding cylinder descends to achieve the self-centering clamping function of the three sets of lateral sliding clamping mechanisms on the side of the lens. Specifically, the lateral sliding clamping mechanism includes a sliding frame, a clamping frame, a lateral sensor module, and a pressing plate; The sliding frame and the support plate are radially slidably connected, and the clamping frame is fixed on the top of the sliding frame and is used to install and fix the lateral sensor module inside it. The extrusion plate is fixed at the end of the lateral sensor module and is used to directly contact the side of the lens. The lateral sliding clamping mechanism also includes an auxiliary clamping arm. The auxiliary clamping arm is rotatably connected to both ends of the clamping frame by a torsion spring. The roller movably connected at its end is used to assist in centering the lens. The support plate is equipped with a drive mechanism that can output axial driving force on one side. The output end of the drive mechanism is provided with a connecting mechanism that works with the lowering mechanism. The output end of the drive mechanism is also fixed with an axial pressure head located above the spherical lens. The drive mechanism also includes a telescopic push rod, a lower pressure arm, and an axial sensor module. The telescopic push rod is fixed on one side of the support plate, and one end of the lower pressure arm is fixed to the output end of the telescopic push rod, while the bottom of the other end is fixedly connected to the axial pressure head through the axial sensor module. The connecting mechanism includes a connecting drive frame and plug blocks. The connecting drive frame is fixed to the bottom of the output end of the telescopic push rod, and the three sets of plug blocks are located inside the connecting drive frame and are elastically slidably connected. The lowering mechanism also includes a central sliding hole, a plug-in hole, and an annular electromagnet. The axial sliding cylinder has a plug-in hole on one side that mates with multiple sets of plug-in blocks, and the annular electromagnet is installed inside the axial sliding cylinder. The central sliding hole is used to mate with the fixed column, so that the axial sliding cylinder can slide stably up and down outside the fixed column. The bottom of the fixed column is fixed with a fixed cylinder, and the bottom of the axial sliding cylinder is provided with an annular groove that matches the fixed cylinder. The axial sliding cylinder slides down along the fixed cylinder, which increases stability. Driven by the driving mechanism, the descent mechanism enables the lateral sliding clamping mechanism to complete the self-centering clamping of the lens and simultaneously achieve lateral pressure resistance testing. After the lateral test meets the standard, it can be separated from the connecting mechanism, allowing the driving mechanism to drive the axial pressure head independently to perform axial pressure resistance testing, thus achieving the function of completing the lateral and axial multi-angle pressure resistance testing of the lens in one clamping. The connecting mechanism also includes a spring and a guide rod. A spring is fixed between the plug block and the connecting drive frame, and the guide rod guides the connecting drive frame when it slides. The main body has a display screen at the front and connection holes on the side, which are used to connect to external devices via power cords and signal lines.

[0005] In summary, the present invention has the following main advantages: The present invention uses three sets of lateral sliding clamping mechanisms arranged in a triangular pattern, combined with auxiliary clamping arms, to achieve self-centering clamping of the lens, ensuring uniform lateral pressure application. Combined with a lateral sensor module, it accurately detects the radial compressive strength of the lens side, simulating the stress environment during lens-frame assembly. The drive mechanism and the lowering mechanism are linked through a connecting mechanism. After the lateral detection meets the standard, the annular electromagnet controls the separation of the insertion block from the insertion hole, allowing the axial pressure head to perform axial compressive strength testing independently while maintaining lateral clamping. This enables multi-angle testing to be completed in a single clamping operation, avoiding positioning errors from multiple clamping operations, improving testing efficiency and data consistency. The axial sensor module and the lateral sensor module work together to accurately record pressure values, and the results are output in real time on the display screen, providing a reliable basis for lens quality judgment and meeting the accuracy and efficiency requirements of batch testing of optical lenses. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the entire invention; Figure 3 For the present invention Figure 2 Enlarged view of point A; Figure 4 This is a schematic diagram of the internal structure of the present invention; Figure 5 This is a magnified view of a partial structure from a first perspective of the present invention; Figure 6 This is a magnified view of a partial structure from a second perspective of the present invention; Figure 7 This is a partial structural schematic diagram of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point B; Figure 9 This is an enlarged exploded view of the structure of the auxiliary clamping arm of the present invention.

[0007] In the diagram: 1. Main body; 2. Fixed column; 201. Fixed cylinder; 3. Support plate; 4. Lateral sliding clamping mechanism; 401. Sliding frame; 402. Clamping frame; 403. Lateral sensor module; 404. Extrusion plate; 405. Auxiliary clamping arm; 5. Drive mechanism; 501. Telescopic push rod; 502. Lower pressure arm; 503. Axial sensor module; 504. Axial pressure head; 6. Connecting mechanism; 601. Connecting drive frame; 602. Insertion block; 603. Spring; 604. Guide rod; 7. Lowering mechanism; 701. Axial sliding cylinder; 702. Connecting inclined plate; 703. Central sliding hole; 704. Insertion hole; 705. Ring electromagnet; 8. Display screen; 9. Connecting hole. Detailed Implementation

[0008] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0009] The embodiments of the present invention will now be described. Example

[0010] like Figure 1-9 As shown, the spherical lens multi-angle compressive strength testing equipment of this embodiment achieves multi-angle compressive strength testing in a single clamping operation through the linkage of lateral and axial testing mechanisms. The specific structure is as follows: The main body 1 serves as the equipment installation foundation, and a fixing column 2 is fixed inside. A fixing cylinder 201 is welded to the bottom of the fixing column 2 to enhance the overall stability. The support plate 3 is horizontally fixed to the top of the fixed column 2, and three radial grooves are provided on its surface for installing the lateral sliding clamping mechanism 4; Each set of lateral sliding clamping mechanisms 4 includes: Sliding bracket 401: It slides in conjunction with the radial groove of the support plate 3 and can extend and retract radially; Clamping bracket 402: Vertically fixed to the top of the sliding bracket 401, used to install the lateral sensor module 403; Lateral sensor module 403: fixed inside the clamping bracket 402, used to detect the pressure applied to the side of the lens; Extrusion plate 404: Fixed to the end of the lateral sensor module 403, it directly contacts the side of the lens to transmit pressure; Auxiliary clamping arm 405: It is rotatably connected to both ends of the clamping frame 402 by a torsion spring, and a roller is installed at the end to assist in lens centering; The drive mechanism 5 includes: Telescopic push rod 501: Fixed to one side of support plate 3, providing axial driving force; The lower pressure arm 502 has one end fixed to the output end of the telescopic push rod 501 and the other end used to install the axial detection component. The axial sensor module 503 is fixed at the bottom of the lower pressure arm 502 and is used to detect the pressure applied to the lens axially. The axial pressure head 504 is fixed at the bottom of the axial sensor module 503 and is located above the spherical lens to directly apply axial pressure to the lens. The connecting mechanism 6 includes: Connecting drive frame 601: fixed to the bottom of the output end of telescopic push rod 501; Insertion block 602: There are three sets, which are elastically and slidably connected inside the connecting drive frame 601 by spring 603, and are used to cooperate with the lowering mechanism 7. The guide rod 604 is used to guide the connecting drive frame 601 during the lifting process. The descent mechanism 7 includes: Axial sliding cylinder 701: Sleeved on the outside of fixed column 2, and can slide up and down along fixed column 2; Connecting inclined plates 702: There are three sets. Each set of connecting inclined plates 702 has a hinge seat installed at both ends. The two ends are respectively connected to the top of the axial sliding cylinder 701 and the lateral sliding clamping mechanism 4, which drives the lateral sliding clamping mechanism 4 to move radially. Central sliding hole 703: It is opened in the middle of the axial sliding cylinder 701 and cooperates with the fixed column 2 to ensure the stable lifting and lowering of the axial sliding cylinder 701; Insertion hole 704: It is opened on one side of the axial sliding cylinder 701 and cooperates with the insertion block 602 to realize the connection between the connecting mechanism 6 and the lowering mechanism 7; Annular electromagnet 705: Installed inside the axial sliding cylinder 701, used to control the extension and retraction of the plug block 602; The display screen 8 is located at the front of the main body 1 and is used to display test data and results. The connection hole 9 is located on the side of the main body 1 and is connected to external devices through power cord and signal line. Equipment workflow: Lens placement: Place the spherical lens to be tested between the three sets of lateral sliding clamping mechanisms 4, and use the auxiliary clamping arm 405 to assist in the initial centering of the lens; Lateral clamping and detection: The telescopic push rod 501 drives the axial sliding cylinder 701 of the lowering mechanism 7 to descend along the fixed column 2 through the connecting mechanism 6. The connecting inclined plate 702 drives the lateral sliding clamping mechanism 4 to retract radially. The extrusion plate 404 applies pressure to the side of the lens. The lateral sensor module 403 records the pressure value to complete the lateral pressure resistance detection. Mechanism separation: After the lateral detection meets the standard, the magnetic poles of the annular electromagnet 705 reverse, repelling the plug block 602 and causing it to be pulled out of the plug hole 704. The connecting mechanism 6 separates from the lowering mechanism 7, and the lateral clamping state remains unchanged. Axial detection: The telescopic push rod 501 continues to descend, driving the axial pressure head 504 to apply axial pressure to the lens. The axial sensor module 503 records the pressure value, completing the axial compressive strength test. Reset and Data Output: After the test is completed, each mechanism resets and the test results are output on display screen 8.

[0011] The working principle of this invention is as follows: When in use, the power is turned on, the device is initialized, the display screen 8 is started, and each sensor module performs a self-test and returns to zero. The spherical lens to be tested is placed inside the clamping frame 402 of the three sets of lateral sliding clamping mechanisms 4 to prepare for subsequent self-centering clamping. At this time, the telescopic push rod of the drive mechanism 5 drives the axial sliding cylinder 701 of the lowering mechanism 7 to slide down along the axis of the fixed column 2 through the connecting mechanism 6. At this time, the axial sliding cylinder 701 descends, which will cause the three sets of connecting inclined plates 702 to rotate to a certain extent when they descend, so that the lateral sliding clamping mechanism 4 at its top can be radially contracted on the support plate 3. During the contraction process, the three sets of lateral sliding clamping mechanisms 4 can perform self-centering clamping operation on the spherical lens. When the clamping frame 402 gradually clamps the side of the spherical lens, the extrusion plate 404 fixed at the output end of the lateral sensor module 403 first contacts the side of the spherical lens. During the continuous clamping process described above, the three sets of lateral sensor modules 403 can apply pressure to the side of the spherical lens. In other words, the lateral sliding clamping mechanism 4 can perform radial pressure resistance detection on the side of the spherical lens, thereby simulating the environment when the spherical lens is assembled with the frame. The lateral sensor module 403 records the pressure value in real time until it reaches the preset threshold (i.e., the actual pressure after the lens and frame are assembled). In other words, the above operation method can restore the force situation of the spherical lens installed in the frame; Once the three sets of lateral sensor modules 403 reach the preset pressure, which is the pressure value of the frame on the spherical lens after the spherical lens is assembled with the frame, the spherical lens undergoing lateral pressure resistance testing is photographed and inspected using external optical high-intensity visual inspection equipment. If a crack is found, the spherical lens is considered a defective product. If no damage occurs, that is, after the lateral detection meets the standard, the ring electromagnet 705 of the lowering mechanism 7 reverses its magnetic poles after being processed by the controller. At this time, the ring electromagnet 705 repels multiple sets of plug blocks 602, causing them to be pulled out of the plug holes 704. At this time, the spring 603 at the corresponding position is in a compressed state. When the magnetic poles of the annular electromagnet 705 are reversed, the annular electromagnet 705 will attract the fixed column 2 in an irregular shape. That is to say, the lowering mechanism 7 is fixed at a position on the fixed column 2 and will no longer descend with the descent of the driving mechanism 5. In other words, the lateral sliding clamping mechanism 4 stably maintains the lateral clamping and fixing effect on the spherical lens. As the drive mechanism 5 continues to descend, the connecting mechanism 6 and the descending mechanism 7 have separated. At the same time, the output end of the telescopic push rod 501 of the drive mechanism 5 drives the axial sensor module 503 and the axial pressure head 504 to descend through the lower pressure arm 502, so that the bottom end of the axial pressure head 504 contacts the upper surface of the spherical lens and applies force under the action of the drive mechanism 5. The axial compressive strength of the spherical lens can be detected through the axial sensor module 503. Furthermore, when the axial compressive strength of the spherical lens is tested, the multiple sets of lateral sliding clamping mechanisms 4 can simultaneously simulate the assembly state of the spherical lens and the frame, thus performing the compressive strength test operation more comprehensively and in a more realistic manner. After the axial test is completed, each mechanism resets in sequence: the axial pressure head 504 rises, the magnetic poles of the annular electromagnet 705 return to normal, the lateral sliding clamping mechanism 4 loosens, the lens can be removed, and the equipment automatically integrates the lateral and axial test data and outputs the pressure-deformation curve, critical pressure value and other results through the display screen 8 to support pass / fail judgment.

[0012] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A multi-angle compressive strength testing device for spherical lenses, comprising a main body (1), characterized in that: The main body (1) has a fixed column (2) inside, and a support plate (3) is fixed on the top of the fixed column (2). The support plate (3) is slidably connected to the triangular top of the support plate (3) with a lateral sliding clamping mechanism (4) to apply radial pressure to the side of the lens to achieve the function of lateral pressure resistance detection. The fixed column (2) is fitted with a lowering mechanism (7), and the top of the axial sliding cylinder (701) of the lowering mechanism (7) and the three sets of lateral sliding clamping mechanisms (4) are connected by a connecting inclined plate (702). The axial sliding cylinder (701) descends to achieve the self-centering clamping function of the three sets of lateral sliding clamping mechanisms (4) on the side of the lens. The support plate (3) is equipped with a drive mechanism (5) that can output axial driving force on one side. The output end of the drive mechanism (5) is provided with a connecting mechanism (6) that works with the lowering mechanism (7). The output end of the drive mechanism (5) is fixed with an axial pressure head (504) located above the spherical lens. The lowering mechanism (7) drives the lateral sliding clamping mechanism (4) to complete the self-centering clamping of the lens and simultaneously realize the lateral pressure resistance test. After the lateral test meets the standard, it can be separated from the connecting mechanism (6) so that the driving mechanism (5) can drive the axial pressure head (504) to perform the axial pressure resistance test, thus realizing the lateral and axial multi-angle pressure resistance test of the lens in one clamping.

2. The spherical lens multi-angle compressive strength testing device according to claim 1, characterized in that: The lateral sliding clamping mechanism (4) includes a sliding frame (401), a clamping frame (402), a lateral sensor module (403), and a pressing plate (404). The sliding frame (401) and the support plate (3) are radially slidably connected, and the clamping frame (402) is fixed on the top of the sliding frame (401) and is used to install and fix the lateral sensor module (403) inside it. The extrusion plate (404) is fixed at the end of the lateral sensor module (403) and is used to directly contact the side of the lens.

3. The spherical lens multi-angle compressive strength testing device according to claim 1, characterized in that: The lateral sliding clamping mechanism (4) also includes an auxiliary clamping arm (405), which is rotatably connected to both ends of the clamping frame (402) by a torsion spring. The rollers movably connected at the ends of the auxiliary clamping arm (405) are used to assist in centering the lens.

4. The spherical lens multi-angle compressive strength testing device according to claim 1, characterized in that: The drive mechanism (5) also includes a telescopic push rod (501), a lower pressure arm (502), and an axial sensor module (503). The telescopic push rod (501) is fixed on one side of the support plate (3), and one end of the lower pressure arm (502) is fixed to the output end of the telescopic push rod (501), while the bottom of the other end is fixedly connected to the axial pressure head (504) through the axial sensor module (503).

5. The spherical lens multi-angle compressive strength testing device according to claim 4, characterized in that: The connecting mechanism (6) includes a connecting drive frame (601) and plug blocks (602). The connecting drive frame (601) is fixed at the bottom of the output end of the telescopic push rod (501), and the three sets of plug blocks (602) are elastically slidably connected inside the connecting drive frame (601).

6. The spherical lens multi-angle compressive strength testing device according to claim 5, characterized in that: The lowering mechanism (7) also includes a central sliding hole (703), a plug-in hole (704) and an annular electromagnet (705). The axial sliding cylinder (701) has a plug-in hole (704) on one side that cooperates with multiple sets of plug-in blocks (602), and the annular electromagnet (705) is installed inside the axial sliding cylinder (701). The bottom of the fixed column (2) is fixed with a fixed cylinder (201), and the bottom of the axial sliding cylinder (701) is provided with an annular groove that cooperates with the fixed cylinder (201). The axial sliding cylinder (701) slides down along the fixed cylinder (201), which increases stability.

7. The spherical lens multi-angle compressive strength testing device according to claim 6, characterized in that: The central sliding hole (703) is used to cooperate with the fixed column (2) so that the axial sliding cylinder (701) can slide stably up and down outside the fixed column (2).

8. The spherical lens multi-angle compressive strength testing device according to claim 5, characterized in that: The connecting mechanism (6) further includes a spring (603) and a guide rod (604). The spring (603) is fixed between the plug block (602) and the connecting drive frame (601), and the guide rod (604) guides the connecting drive frame (601) when it slides.

9. The spherical lens multi-angle compressive strength testing device according to claim 1, characterized in that: The main body (1) is provided with a display screen (8) at the front end, and a connection hole (9) is provided on the side of the main body (1). The connection hole (9) is connected to external devices through power lines and signal lines.

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