Thrust test fixture structure for camera lens

Abstract

The utility model relates to a camera lens thrust test fixture structure in the technical field of lens test fixtures, which comprises a base, a workbench, a portal frame and a push test assembly, and the push test assembly comprises a push cylinder, a push rod, a push block and a polyformaldehyde thrust column; small-batch testing operation is completed in a mode between full-automatic operation and full-manual operation, so that the effect of reducing the cost is achieved; through the design of the pushing air cylinder and the height adjusting plate, accurate pushing force control can be achieved, the accuracy and consistency of test results are ensured, and when lenses with different pressures need to be tested, the position of the height adjusting plate on the surface of the fixing plate can be adjusted, so that the driving force of the pushing air cylinder is the best force, and pressure pushing is assisted; according to the structure, the advantages of full automation and full manual operation are combined, the testing efficiency is improved while the testing precision is guaranteed, expensive full-automatic equipment is avoided, the cost is effectively reduced, and the maintenance cost dependent on complex equipment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lens testing fixture technology, and in particular to a camera lens thrust testing fixture structure. Background Technology

[0002] The adhesive strength of a camera lens refers to the bonding strength between the lens and the lens frame or between the lens and the lens itself. This is crucial in the camera assembly process. Good adhesive strength ensures that the lens will not detach during use, thereby guaranteeing the camera's performance and reliability. The camera lens push force test fixture is a test fixture used to check whether the adhesive strength of the camera lens meets the process requirements.

[0003] A relevant reference is Chinese Patent CN209283392U, which discloses a camera lens thrust testing fixture, including a base, a product placement box, and a thrust testing component. The thrust testing component includes a pressure plate, a top head assembly, a sealing plate, and a pressure application device. The top head assembly includes multiple top head units. The pressure plate has multiple through holes for accommodating the top head units. Each top head unit includes a vertically arranged elastic element and a top head. The top head can move up and down to compress the elastic element, which applies a downward thrust to the top head. The top head applies a downward thrust to the camera lens, the magnitude of which is determined by the amount of compression of the elastic element by the top head. The sealing plate is horizontally positioned above the pressure plate to seal the elastic element during thrust testing. The pressure application device includes a vertically arranged push rod for moving the sealing plate up and down. The push rod has a length adjustment device for adjusting its length. This design overcomes the problems of high energy consumption and high testing costs associated with traditional testing fixtures.

[0004] A relevant reference is Chinese Patent CN104483101B, which discloses a high-efficiency fully automatic lens thrust testing machine. The machine includes a frame, a worktable mounted on the frame, and a testing device mounted on the worktable. The testing device includes a feeding platform, a transfer mechanism slidably connected to the feeding platform, and a product positioning fixture mounted on the transfer mechanism. The product positioning fixture holds several products to be tested arranged in a matrix. It also includes a displacement sensor assembly and a pressure sensor assembly. The pressure sensor assembly is located at the end of the feeding platform to control the testing pressure of the products to be tested on the product positioning fixture. The displacement sensor assembly is located below the pressure sensor assembly to detect the displacement change of the products to be tested on the product positioning fixture under pressure. All of the above devices are connected to a PLC control device. This testing machine has high measurement efficiency and high measurement accuracy, solving the problem of precise quantitative detection of lens adhesion firmness.

[0005] While the aforementioned structures all address the issue of pressure testing, they are designed for both fully manual and fully automatic operation. When conducting small-batch testing or in small workshops, the lack of flexibility in manual operation can lead to lengthy testing times, and the time required varies depending on the operator's skill level. Fully automatic operation offers higher cost-effectiveness, but this increases the reliance on complex equipment and maintenance costs. Therefore, further structural modifications are needed, adding steps and reducing efficiency. To address these issues, the inventors have proposed a camera lens thrust testing fixture structure. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the aforementioned problems.

[0007] A camera lens thrust testing fixture structure includes a base, a worktable, a gantry frame, and a pushing test assembly. The worktable and gantry frame are both mounted on the surface of the base. The surface of the worktable is the test area. A fixing plate is mounted on the surface of the gantry frame, and a height adjustment plate is connected to the surface of the fixing plate. The pushing test assembly is mounted on the surface of the height adjustment plate and is located above the test area. The pushing test assembly includes a pushing cylinder, a pushing rod, a pushing block, and a acetal thrust column. One end of the pushing cylinder abuts against the surface of the height adjustment plate. The pushing rod is located inside the pushing cylinder, and one end extends beyond the surface of the pushing cylinder and abuts against the pushing block. The acetal thrust column has a cylindrical protruding structure and is mounted on one end of the pushing block. This equipment operates between fully automated and fully manual operation. This structure enables small-batch operations, achieving cost reduction.

[0008] The design employing a push cylinder and height adjustment plate enables precise thrust control, ensuring the accuracy and consistency of test results. When testing lenses with different pressures, the position of the height adjustment plate on the fixed plate surface can be adjusted to optimize the driving force of the push cylinder, facilitating the push rod, push block, and P-type thrust column. This structure falls between fully automated and fully manual operation, combining the advantages of both. It improves testing efficiency while ensuring testing accuracy. This structure is suitable for small-batch operations, avoiding the use of expensive fully automated equipment, effectively reducing costs and easing reliance on complex equipment maintenance. Furthermore, the semi-automated structure frees up some manual labor, reducing hand and shoulder fatigue and improving production testing efficiency.

[0009] Furthermore, the surface of the workbench is provided with a placement slot for placing the test area, and both sides of the workbench are provided with an opening slot for operators to easily pick up and put down products. The opening slot is connected to the interior of the placement slot. The design of the opening slot allows operators to quickly pick up and put down products, reducing operation time and complexity, improving work efficiency, and reducing the risk of operators getting their hands pinched when picking up and putting down products, thus improving operational safety. It also facilitates human identification and operation, reducing damage and safety accidents caused by misoperation.

[0010] Furthermore, a time relay is installed inside the base, with one end of the time relay extending to the surface of the base. The surface of the base is provided with a data interface for connecting external data and a power interface for connecting an external power cord.

[0011] Time relays enable timed control of equipment, automatically turning the power on or off according to preset times, improving the automation level of the pressure system. When a specified time and pressure are set, the relays ensure that the pressure operates normally within the specified time period, avoiding overpressure. The design of the data and power interfaces allows for quick connection of external data and power lines, reducing installation and debugging time and facilitating data transmission and exchange, as well as data acquisition, monitoring, and analysis.

[0012] Furthermore, a test plate is mounted on the surface of the test area, and the surface of the test plate is provided with a number of test mating holes that are coaxial with the lens being tested.

[0013] The test mating hole is coaxial with the lens being tested, ensuring precise alignment of the lens during testing, reducing positional deviations, and improving the accuracy of test results. When testing, the lens being tested is placed in the same position, ensuring the repeatability of test results, while reducing preparation time and operational complexity, and improving testing efficiency. When different lens models need to be tested, a matching lens test plate can be used for quick installation and rapid testing.

[0014] Furthermore, the surface of the test area is provided with several positioning blocks for auxiliary positioning and limiting blocks for auxiliary product position limitation. One end of the test area is provided with a pad block of the same height as the test plate. The positioning blocks can ensure the precise alignment of the product to be tested on the test area, reduce position deviation, and improve the accuracy of test results. Each time the product is tested, it can be placed in the same position to ensure the repeatability of test results. The limiting blocks can ensure that the product will not move during the test, providing a stable fixing effect and reducing test errors caused by position changes. The limiting blocks restrict the product from both ends to ensure its stability and consistency during the test. Through precise positioning and fixing, the risk to operators during the test can be reduced.

[0015] The pads are used to ensure that the product is level, so as to avoid uneven pressure and damage to the product caused by the acetal thrust column pressing down on the product due to height errors.

[0016] Furthermore, the surface of the fixing plate is provided with several adjustment slots for assisting in adjusting the position of the fixing plate on the gantry surface. The adjustment slots are arranged in a matrix on the surface of the fixing plate. The design of adding adjustment slots provides multiple adjustment points, allowing for fine adjustment of the position of the fixing plate on the gantry, ensuring the accuracy of the installation position. This design can also quickly locate the position of the fixing plate, reducing installation time and improving work efficiency. The matrix arrangement of the adjustment slots allows them to adapt to different working conditions and installation requirements, improving compatibility and enabling the installation of fixing plates and gantry frames of different specifications, thus expanding the scope of application.

[0017] Furthermore, the surface of the base is provided with a valve port for placing a precision pressure regulating valve; the precision pressure regulating valve can provide high-precision pressure control to ensure that the system can maintain a stable working pressure under different working conditions, so as to effectively maintain the pressure stability within the system, reduce pressure failures and performance degradation caused by pressure fluctuations, and reduce product damage and safety accidents caused by overpressure.

[0018] The pressure regulating valve is a key component used to control the cylinder pressure. By adjusting the gas pressure input to the cylinder, it ensures that the cylinder operates at a predetermined pressure. Its principle is as follows: by adjusting the gas pressure input to the cylinder to reach a predetermined value, the pressure regulating valve has an adjustable spring and a diaphragm or piston system inside, which are used to sense and regulate the pressure. When the pressure in the cylinder reaches the set value, the pressure regulating valve will automatically close and stop supplying gas to the cylinder. When the pressure in the cylinder is lower than the set value, the pressure regulating valve will reopen and continue to supply gas until the pressure reaches the set value again.

[0019] Furthermore, the surface of the push cylinder is provided with weight-reducing grooves to reduce its weight. These grooves reduce the weight of the push cylinder, thereby lowering the overall weight of the structure, improving portability and ease of operation. In addition, the lighter weight allows the push cylinder to respond to control signals more quickly, improving the dynamic performance and operational accuracy of the equipment. It also helps control the inertia of the push cylinder, making it faster and more stable during start-up and shutdown, thus improving overall control performance. On the other hand, the reduced weight makes it easier to install and disassemble the push cylinder, improving the convenience of maintenance and repair, and reducing the difficulty of handling and installation, thereby improving operational convenience and safety.

[0020] Compared with the prior art, the advantages of this utility model are: it completes small-batch testing operations in a way that is between fully automated and fully manual operation, thereby reducing costs; the design of the push cylinder and height adjustment plate enables precise thrust control, ensuring the accuracy and consistency of test results; when testing lenses with different pressures, the position of the height adjustment plate on the fixed plate surface can be adjusted to make the driving force of the push cylinder optimal, so as to assist the push rod, push block and acetal thrust column in pushing;

[0021] This structure combines the advantages of both fully automated and fully manual operation, ensuring testing accuracy while improving testing efficiency, avoiding the use of expensive fully automated equipment, effectively reducing costs, and alleviating the dependence on and maintenance costs of complex equipment.

[0022] In addition, the semi-automated structure frees up some manual labor, reduces hand and shoulder fatigue, and improves production and testing efficiency while reducing labor costs. This camera lens thrust test fixture is used to check whether the adhesion of the camera lens meets the process requirements. Attached Figure Description

[0023] Figure 1 This is a front view of a camera lens thrust testing fixture structure;

[0024] Figure 2 This is a left view of a camera lens thrust testing fixture structure.

[0025] Figure 3 This is a top view of a camera lens thrust testing fixture structure;

[0026] Figure 4 This is a three-dimensional diagram of a camera lens thrust testing fixture structure;

[0027] Figure 5 Another perspective view of the structure of a camera lens thrust testing fixture;

[0028] Figure 6 This is another perspective view of the structure of a camera lens thrust testing fixture;

[0029] Figure 7 This is a three-dimensional view of the pushing test component in the structure of a camera lens thrust testing fixture;

[0030] Figure 8 This is a three-dimensional view of the worktable in the structure of a camera lens thrust testing fixture;

[0031] Figure 9 This is a partial 3D view of the worktable in the structure of a camera lens thrust testing fixture;

[0032] Figure 10 This is another partial perspective view of the workbench in a camera lens thrust testing fixture structure.

[0033] In the diagram: Base-1, Workbench-2, Gantry-3, Test Area-4, Fixing Plate-5, Height Adjustment Plate-6, Push Cylinder-7, Push Rod-8, Push Block-9, Pneumatic Thrust Column-10, Opening Slot-11, Time Relay-12, Data Interface-13, Power Interface-14, Test Plate-15, Test Fitting Hole-16, Positioning Block-17, Limit Block-18, Pad Block-19, Adjustment Slot-20, Valve Port-21, Weight Reduction Slot-22, Placement Slot-23. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0035] For this embodiment, please refer to Figures 1-10 The present invention relates to a camera lens thrust testing fixture structure, comprising a base 1, a workbench 2, a gantry 3, and a push testing component. The workbench 2 and the gantry 3 are both mounted on the surface of the base 1. The surface of the workbench 2 is the testing area 4. A fixing plate 5 is mounted on the surface of the gantry 3, and a height adjustment plate 6 is connected to the surface of the fixing plate 5. The push testing component is mounted on the surface of the height adjustment plate 6 and is located above the testing area 4. The push testing component includes a push cylinder 7, a push rod 8, a push block 9, and a acetal thrust column 10. One end of the push cylinder 7 abuts against the surface of the height adjustment plate 6. The push rod 8 is located inside the push cylinder 7, and one end extends beyond the surface of the push cylinder 7 and abuts against the push block 9. The acetal thrust column 10 has a cylindrical protruding structure and is mounted on one end of the push block 9. This equipment is between fully automated and fully manual operation. This structure is used to complete small-batch operations, thereby reducing costs.

[0036] The design employing a push cylinder 7 and a height adjustment plate 6 enables precise thrust control, ensuring the accuracy and consistency of test results. When testing lenses with different pressures, the position of the height adjustment plate 6 on the surface of the fixed plate 5 can be adjusted to optimize the driving force of the push cylinder 7, facilitating the push rod 8, push block 9, and acetal thrust column 10. This structure falls between fully automated and fully manual operation, combining the advantages of both. It improves testing efficiency while ensuring testing accuracy. This structure is suitable for small-batch operations, avoiding the use of expensive fully automated equipment, effectively reducing costs and lessening the dependence on complex equipment and maintenance costs. Furthermore, the semi-automated structure frees up some manual labor, reducing hand and shoulder fatigue, thus improving production testing efficiency.

[0037] The surface of the workbench 2 is provided with a placement slot 23 for placing the test area 4. Both sides of the workbench 2 are provided with an opening slot 11 to facilitate the operator to pick up and put down the product. The opening slot 11 is connected to the interior of the placement slot 23. The design of the opening slot 11 allows the operator to quickly pick up and put down the product, reducing operation time and complexity, improving work efficiency, and reducing the risk of the operator's hand being pinched when picking up and putting down the product, thus improving the safety of operation. It is also convenient for human identification and operation, reducing damage and safety accidents caused by misoperation.

[0038] A time relay 12 is installed inside the base 1. One end of the time relay 12 extends to the surface of the base 1. The surface of the base 1 is provided with a data interface 13 for connecting external data and a power interface 14 for connecting external power lines.

[0039] The time relay 12 enables timed control of the equipment, automatically turning the power on or off according to a preset time, improving the automation level of the pressure system. When a specified time and pressure are set, it ensures that the pressure works normally within the specified time period, avoiding overpressure. The design of the data interface 13 and the power interface 14 allows for quick connection of external data and power lines, reducing installation and debugging time and facilitating data transmission and exchange, making it convenient for data acquisition, monitoring, and analysis.

[0040] A test plate 15 is installed on the surface of the test area 4, and a plurality of test mating holes 16 coaxial with the lens being tested are respectively opened on the surface of the test plate 15.

[0041] The test mating hole 16 is coaxial with the lens under test, which ensures the precise alignment of the lens under test during the test, reduces positional deviation, and improves the accuracy of the test results. When the lens under test is placed in the same position during the test, the repeatability of the test results can be ensured, while reducing preparation time and operational complexity and improving test efficiency. When different models of lenses need to be tested, a matching lens test plate can be used for mating, which can achieve the effect of quick installation and quick testing.

[0042] The surface of the test area 4 is provided with a plurality of positioning blocks 17 for auxiliary positioning and limiting blocks 18 for auxiliary product position limitation. One end of the test area 4 is provided with a pad block 19 of the same height as the test plate 15. The positioning blocks 17 can ensure the precise alignment of the product to be tested on the test area 4, reduce position deviation, and improve the accuracy of test results. Each time the product is tested, it can be placed in the same position to ensure the repeatability of test results. The limiting blocks 18 can ensure that the product will not move during the test, providing a stable fixing effect and reducing test errors caused by position changes. The limiting blocks 18 restrict the product from both ends to ensure its stability and consistency during the test. Through precise positioning and fixing, the risk to the operator during the test can be reduced.

[0043] The pad 19 is to ensure that the product is raised to a certain level, so as to avoid uneven pressure and damage to the product caused by the acetal thrust column 10 pressing down on the product due to height error.

[0044] The surface of the fixing plate 5 is provided with a plurality of adjustment grooves 20 for assisting in adjusting the position of the fixing plate 5 on the surface of the gantry 3. The adjustment grooves 20 are arranged in a matrix on the surface of the fixing plate 5. The design of adding adjustment grooves 20 provides multiple adjustment points, allowing the position of the fixing plate 5 on the gantry 3 to be finely adjusted, ensuring the accuracy of the installation position. This design can also quickly locate the position of the fixing plate 5, reducing installation time and improving work efficiency. The matrix arrangement of the adjustment grooves 20 allows them to adapt to different working conditions and installation requirements, improving compatibility and enabling the installation of fixing plates 5 and gantry 3 of different specifications, thus expanding the scope of application.

[0045] The surface of the base 1 is provided with a valve port 21, which is used to place a precision pressure regulating valve. The precision pressure regulating valve can provide high-precision pressure control to ensure that the system can maintain a stable working pressure under different working conditions, so as to effectively maintain the pressure stability in the system, reduce pressure failure and performance degradation caused by pressure fluctuations, and reduce product damage and safety accidents caused by overpressure.

[0046] The pressure regulating valve is a key component used to control the cylinder pressure. By adjusting the gas pressure input to the cylinder, it ensures that the cylinder operates at a predetermined pressure. Its principle is as follows: by adjusting the gas pressure input to the cylinder to reach a predetermined value, the pressure regulating valve has an adjustable spring and a diaphragm or piston system inside, which are used to sense and regulate the pressure. When the pressure in the cylinder reaches the set value, the pressure regulating valve will automatically close and stop supplying gas to the cylinder. When the pressure in the cylinder is lower than the set value, the pressure regulating valve will reopen and continue to supply gas until the pressure reaches the set value again.

[0047] The surface of the push cylinder 7 is provided with a weight-reducing groove 22 for reducing the weight of the push cylinder 7. The weight-reducing groove 22 can reduce the weight of the push cylinder 7, thereby reducing the total weight of the entire structure, improving portability and ease of operation. In addition, the lighter weight allows the push cylinder 7 to respond to control signals more quickly, improving the dynamic performance and operational accuracy of the equipment. It also controls the inertia of the push cylinder 7, making it faster and more stable when starting and stopping, thus improving the overall control performance. On the other hand, the reduced weight makes it easier to install and disassemble the push cylinder 7, improving the convenience of maintenance and repair, and reducing the difficulty of handling and installation, thereby improving the convenience and safety of operation.

[0048] The key design features of this invention are: it employs a method that balances full automation and manual operation to complete small-batch operations, thereby reducing costs; the design of the cylinder 7 and height adjustment plate 6 enables precise thrust control, ensuring the accuracy and consistency of test results; when testing lenses with different pressures, the position of the height adjustment plate 6 on the surface of the fixed plate 5 can be adjusted to optimize the driving force of the cylinder 7, thus facilitating the pushing of the push rod 8, push block 9, and acetal thrust column 10.

[0049] This structure combines the advantages of both fully automated and fully manual operation, ensuring testing accuracy while improving testing efficiency, avoiding the use of expensive fully automated equipment, effectively reducing costs, and alleviating the dependence on and maintenance costs of complex equipment.

[0050] In addition, the semi-automated structure frees up some manual labor, reduces fatigue in the hands and shoulders, and improves production and testing efficiency while reducing labor costs. When the inspection process is carried out, the cylinder 7 drives the push rod 8, push block 9 and acetal push column 10 to move together toward the product being inspected. Then the acetal push column 10 applies pressure to the lens. If the lens has not fallen off the surface of the product when the pressure is applied to the specified pressure value, it means that the lens has good adhesion and the inspection is qualified.

[0051] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A camera lens thrust testing fixture structure, comprising a base, a worktable, a gantry frame, and a push testing assembly, characterized in that: Both the workbench and the gantry are mounted on the surface of the base. The surface of the workbench is the test area. A fixing plate is mounted on the surface of the gantry. A height adjustment plate is connected to the surface of the fixing plate. The push test assembly is mounted on the surface of the height adjustment plate and is located above the test area. The push test assembly includes a push cylinder, a push rod, a push block, and a acetal thrust column. One end of the push cylinder abuts against the surface of the height adjustment plate. The push rod is located inside the push cylinder, and one end extends beyond the surface of the push cylinder and abuts against the push block. The acetal thrust column has a cylindrical protruding structure and is mounted on one end of the push block.

2. The camera lens thrust testing fixture structure according to claim 1, characterized in that: The surface of the workbench is provided with a placement slot for placing the test area, and both sides of the workbench are provided with an opening slot for easy access for the operator to pick up and put down the product. The opening slot and the placement slot are connected internally.

3. The camera lens thrust testing fixture structure according to claim 1, characterized in that: A time relay is installed inside the base, with one end of the time relay extending to the surface of the base. The surface of the base is provided with a data interface for connecting external data and a power interface for connecting an external power cord.

4. A camera lens thrust testing fixture structure according to any one of claims 1-3, characterized in that: A test plate is mounted on the surface of the test area, and the surface of the test plate has a number of test mating holes that are coaxial with the lens being tested.

5. The camera lens thrust testing fixture structure according to claim 4, characterized in that: The surface of the test area is provided with several positioning blocks for auxiliary positioning and limiting blocks for auxiliary product position limitation, and one end of the test area is provided with a pad block of the same height as the test plate.

6. A camera lens thrust testing fixture structure according to any one of claims 1-3, characterized in that: The surface of the fixing plate is provided with a number of adjustment grooves for assisting in adjusting the position of the fixing plate on the gantry surface, and the adjustment grooves are arranged in a matrix on the surface of the fixing plate.

7. A camera lens thrust testing fixture structure according to any one of claims 1-3, characterized in that: The surface of the base is provided with a valve port for placing a precision pressure regulating valve.

8. A camera lens thrust testing fixture structure according to any one of claims 1-3, characterized in that: The surface of the push cylinder is provided with weight-reducing grooves to reduce the weight of the push cylinder.

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