Lens bending tester

Abstract

The utility model relates to a kind of lens bending tester, including base, clamping sliding seat and camber table, two described clamping sliding seat slidingly set on base and transmission structure transmission connection, the camber table is set on clamping sliding seat top, two described clamping sliding seat each is provided with one positioning sliding seat that can slide along with the direction perpendicular to the sliding direction of clamping sliding seat, two described positioning sliding seat between being provided with the positioning plate parallel with the sliding direction of clamping sliding seat, the positioning plate both ends each forms a support arm, two described support arms are respectively slidably set on two positioning sliding seats along with the direction parallel with the sliding direction of clamping sliding seat, positioning adjusting screw rod on base is screw-connected and is rotatably provided on the positioning plate.This kind of lens bending tester reduces the operation difficulty when lens bending test by the positioning effect of positioning plate, also ensure the accuracy of test.

Description

Technical Field

[0001] This utility model relates to the field of eyeglass manufacturing equipment technology, and in particular to a lens bending tester. Background Technology

[0002] Lens bending testers are used to perform bending tests on spectacle lenses. For example, the applicant previously disclosed a device for performing lens bending tests through a utility model patent: a spectacle lens curvature testing device (publication number: CN204988905U). When using the above device to perform lens bending tests, the lens needs to be accurately placed on the slide plate so that the center of the lens is aligned with the detection contact point of the curvature meter. This requires the operator to be very careful and meticulous in placing the lens on the slide plate. However, in continuous testing, the operator's human error will affect the accuracy of the test results.

[0003] To address the aforementioned problems, this utility model provides improvements. Utility Model Content

[0004] This invention proposes a lens bending tester, which solves the above-mentioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows: A lens bending tester includes a base, clamping slides, and a curvature gauge. Two clamping slides are slidably mounted on the base and connected to a transmission structure. The curvature gauge is positioned above the clamping slides. Each of the two clamping slides has a positioning slide that can slide in a direction perpendicular to the sliding direction of the clamping slide. A positioning plate parallel to the sliding direction of the clamping slides is positioned between the two positioning slides. A support arm is formed at each end of the positioning plate. The two support arms are slidably mounted on the two positioning slides in a direction parallel to the sliding direction of the clamping slides. A positioning adjustment screw screwed to the base is rotatably mounted on the positioning plate.

[0006] Preferably, the base is provided with two sliding support rods, the clamping slide is passed through the sliding support rods and a sliding bearing is provided between the clamping slide and the sliding support rods, the base is rotatably provided with a first drive screw, and the two clamping slides are respectively screwed to two threaded sections with opposite directions of rotation formed on the first drive screw.

[0007] Preferably, a support column is fixedly installed on the base and erected on one side of the clamping slide. A longitudinal sliding groove is opened on the support column. A vertical second drive screw is rotatably installed in the sliding groove. A mounting slide that matches the sliding groove and is screwed onto the second drive screw is installed in the sliding groove. The curvature gauge is installed on the mounting slide. The positioning adjustment screw is screwed onto the support column.

[0008] Preferably, the mounting slide has a mounting groove that matches the curvature gauge, and the curvature gauge is fitted into the mounting groove.

[0009] Preferably, a fastening groove is provided on the side wall of the sliding groove, which passes through the support column. A fastening bolt that extends out of the fastening groove is fixedly connected to the mounting slide. The end of the fastening bolt that extends out of the fastening groove is screwed with a fastening nut that abuts against the support column.

[0010] Preferably, the clamping slide is provided with a scale located on one side of the positioning slide, and a pointer pointing to the scale is fixedly connected to the positioning slide.

[0011] Preferably, the ends of the first drive screw and the second drive screw are respectively fixedly connected to a first handwheel and a second handwheel.

[0012] In summary, the beneficial effects of this utility model are as follows: by using the positioning plate to position the lens to be tested, the positioning plate ensures that the lens to be tested is aligned with the detection contact point of the curvature meter after placement, thus ensuring the accuracy of the bending test. Furthermore, it reduces the operational difficulty of placing and positioning the lens to be tested, making it easier for operators to perform lens bending tests. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This is an exploded view of the present invention; Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0015] In the diagram: 1. Base; 2. Support column; 21. Sliding groove; 22. Fastening groove; 3. Clamping slide; 4. Curvature gauge; 5. Positioning slide; 51. Pointer; 6. Positioning plate; 61. Support arm; 7. Positioning adjustment screw; 8. Sliding support rod; 9. Sliding bearing; 10. First drive screw; 11. Second drive screw; 12. Mounting slide; 121. Mounting groove; 122. Fastening bolt; 123. Fastening nut; 13. Scale; 14. First handwheel; 15. Second handwheel. Detailed Implementation

[0016] The following will refer to the appendix in the embodiments of this utility model. Figure 1-4 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] As shown in the figure, a lens bending tester includes a base 1, clamping slides 3, and a curvature gauge 4. The two clamping slides 3 are slidably mounted on the base 1 and are connected to a transmission structure. The curvature gauge 4 is positioned above the clamping slides 3. Each of the two clamping slides 3 is provided with a positioning slide 5 that can slide in a direction perpendicular to the sliding direction of the clamping slide 3. A positioning plate 6 parallel to the sliding direction of the clamping slides 3 is provided between the two positioning slides 5. A support arm 61 is formed at each end of the positioning plate 6. The two support arms 61 are slidably mounted on the two positioning slides 5 in a direction parallel to the sliding direction of the clamping slides 3. A positioning adjustment screw 7 is rotatably mounted on the positioning plate 6 and screwed to the base 1.

[0018] Specifically, the clamping base 1 slides on the base 1 and is connected to the transmission structure: the base 1 is provided with two sliding support rods 8, the clamping slide 3 passes through the sliding support rods 8 and a sliding bearing 9 is provided between the clamping slide 3 and the sliding support rods 8, the base 1 is rotatably provided with a first drive screw 10, and the two clamping slides 3 are respectively screwed to two threaded sections with opposite directions of rotation on the first drive screw 10. When the first drive screw is rotated, the first drive screw, through the threaded sections with opposite directions of rotation at both ends, simultaneously drives the two clamping slides 3 to slide towards or away from each other on the sliding support rod, ensuring the synchronicity of the sliding of the two clamping slides 3 and ensuring that the center of the distance between the two clamping slides 3 remains stable. The sliding bearing 9 enhances the stability and smoothness of the clamping slides 3 sliding on the sliding support rod 8.

[0019] Specifically, the curvature gauge 4 is positioned above the clamping slide 3 in the following structure: a support column 2 is fixedly mounted on the base 1 and stands upright on one side of the clamping slide 3. A longitudinal sliding groove 21 is provided on the support column 2. A vertical second drive screw 11 is rotatably mounted in the sliding groove 21. A mounting slide 12, which matches the sliding groove 21 and is screwed onto the second drive screw 11, is provided in the sliding groove 21. The curvature gauge 4 is mounted on the mounting slide 12. The positioning adjustment screw 7 is screwed onto the support column 2. When the second drive screw 11 is rotated, the second drive screw 11 drives the mounting slide 12 to slide longitudinally within the sliding groove 21 through its threaded engagement with the mounting slide 12, thereby causing the curvature gauge 4 to slide longitudinally.

[0020] Specifically, the curvature gauge 4 is mounted on the mounting slide 12 with a mounting groove 121 that matches the curvature gauge 4. The curvature gauge 4 is fitted into the mounting groove 121. This method facilitates the disassembly and assembly of the curvature gauge 4 and makes it easier to clean and maintain the curvature gauge 4.

[0021] In the above structure, before placing the lens to be tested between the two clamping slides 3, the positioning adjustment screw 7 is rotated to move the positioning adjustment screw 7 on the support column 2 in a direction perpendicular to the sliding direction of the clamping slides 3. This causes the positioning plate 6 to move in a direction perpendicular to the sliding direction of the clamping slides 3. The positioning plate 6, through the support arms 61 at both ends, simultaneously drives the two positioning slides 5 to slide on the two clamping slides in a direction perpendicular to the sliding direction of the clamping slides 3, thereby adjusting the position of the positioning plate 6. Through the position adjustment of the positioning plate 6, the horizontal distance between the positioning plate 6 and the detection contact point of the curvature meter 4 is made consistent with the radius of the lens to be tested. Then, the lens to be tested is placed on the two clamping slides 3 and abuts against the positioning plate 6. The positioning effect of the positioning plate 6 ensures that the center of the lens to be tested is aligned with the detection contact point of the curvature meter 4. Then, the first drive screw 10 is rotated to drive the lens to move between the two clamping slides 3 and the positioning plate 6. Two clamping slides 3 slide synchronously towards each other and abut against the lens to be tested. At the same time, the positioning plate 6 remains stable as the support arm 61 slides on the positioning slide 5 in a direction parallel to the sliding direction of the clamping slides 3. Then, the second drive screw 11 is rotated to drive the mounting slide 12, which in turn moves the curvature gauge 4 downward, so that the detection contact of the curvature gauge 4 comes into contact with the lens to be tested, and the value of the curvature gauge 4 is zeroed. Then, by continuously rotating the first drive screw 10, the two clamping slides 3 are driven to squeeze the lens to be tested and, together with the curvature gauge 4, perform the bending test on the lens. In the above lens bending test process, the positioning plate 6 plays a positioning role when placing the lens to be tested, ensuring that the lens to be tested is aligned with the detection contact of the curvature gauge 4 after placement, thus ensuring the accuracy of the bending test. It also reduces the difficulty of placing and positioning the lens to be tested, making it easier for operators to perform lens bending tests.

[0022] Furthermore, based on the above structure, a fastening groove 22 is provided on the side wall of the sliding groove 21, which passes through the support column 2. A fastening bolt 122 is fixedly connected to the mounting slide 12, which extends out of the fastening groove 22. The end of the fastening bolt 122 extending out of the fastening groove 22 is screwed with a fastening nut 123 that abuts against the support column 2. When the position of the mounting slide 12 is adjusted by rotating the second drive screw 11 so that the detection contact of the curvature gauge 4 abuts against the lens to be tested, the fastening nut 123 is loosened so that the fastening bolt 122 slides with the mounting slide 12 in the fastening groove 22. After the height of the curvature gauge 4 is adjusted to the correct position, the fastening nut 123 is tightened so that it abuts against the support column 2. The friction force generated between the fastening nut 123 and the support column 2 limits the longitudinal sliding of the mounting slide 12, thereby keeping the curvature gauge 4 stably in the adjusted position, thus ensuring the accuracy of the lens bending test.

[0023] Furthermore, based on the above structure, the clamping slide 3 is provided with a scale 13 located on one side of the positioning slide 5. The positioning slide 5 is fixedly connected with a pointer 51 pointing to the scale 13. When the position of the positioning plate 6 is adjusted by rotating the positioning adjustment screw 7, the position of the positioning plate 6 can be more easily determined by the scale value of the scale 13 pointed to by the pointer 51, making the position adjustment operation of the positioning plate 6 more convenient and accurate, thereby ensuring that the lens to be tested plays a more accurate positioning role.

[0024] In addition, based on the above structure, the ends of the first drive screw 10 and the second drive screw 11 are respectively fixedly connected to a first handwheel 14 and a second handwheel 15. The first handwheel 14 and the second handwheel 15 can be used to rotate the first drive screw 10 and the second drive screw 11 more conveniently, which facilitates the operation during lens bending test.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lens bending tester, comprising a base (1), clamping slides (3) and a bending table (4), two of the clamping slides (3) are slidingly arranged on the base (1) and are drivingly connected with a transmission structure, and the bending table (4) is arranged above the clamping slides (3), characterized in that: Each of the two clamping slides (3) is provided with a positioning slide (5) that can slide in a direction perpendicular to the sliding direction of the clamping slide (3). A positioning plate (6) parallel to the sliding direction of the clamping slide (3) is provided between the two positioning slides (5). A support arm (61) is formed at each end of the positioning plate (6). The two support arms (61) can slide through the two positioning slides (5) in a direction parallel to the sliding direction of the clamping slide (3). A positioning adjustment screw (7) screwed to the base (1) is rotatably provided on the positioning plate (6). ​ 2. The lens bending tester of claim 1, wherein: Two sliding support rods (8) are provided on the base (1). The clamping slide (3) passes through the sliding support rod (8) and a sliding bearing (9) is provided between the clamping slide (3) and the sliding support rod (8). A first drive screw (10) is rotatably provided on the base (1). The two clamping slides (3) are respectively screwed onto two threaded sections with opposite directions formed on the first drive screw (10).

3. The lens bending tester of claim 2, wherein: A support column (2) is fixedly installed on the base (1) and is erected on one side of the clamping slide (3). A longitudinal sliding groove (21) is provided on the support column (2). A vertical second drive screw (11) is rotatably installed in the sliding groove (21). A mounting slide (12) that matches the sliding groove (21) and is screwed onto the second drive screw (11) is provided in the sliding groove (21). The curvature gauge (4) is installed on the mounting slide (12). The positioning adjustment screw (7) is screwed onto the support column (2).

4. The lens bending tester of claim 3, wherein: The mounting slide (12) has a mounting groove (121) that matches the curvature gauge (4), and the curvature gauge (4) is fitted into the mounting groove (121).

5. The lens bending tester of claim 4, wherein: The sliding groove (21) has a fastening groove (22) that passes through the support column (2) on its side wall. The mounting slide (12) is fixedly connected with a fastening bolt (122) that passes through the fastening groove (22). The end of the fastening bolt (122) that passes through the fastening groove (22) is screwed with a fastening nut (123) that abuts against the support column (2).

6. The lens bending tester of claim 5, wherein: The clamping slide (3) is provided with a scale (13) located on one side of the positioning slide (5), and a pointer (51) pointing to the scale (13) is fixedly connected to the positioning slide (5).

7. The lens bending tester of claim 6, wherein: The first drive screw (10) and the second drive screw (11) are respectively fixedly connected to the ends of the first handwheel (14) and the second handwheel (15).

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