Positioning gripper for laser engraving of lenses

Abstract

The utility model provides a kind of for lens laser etching's positioning clamping jaw, it is related to lens processing technical field, comprising: clamping jaw, clamping jaw is used to hold lens;First air bag, first air bag is set on the clamping surface of clamping jaw;Second air bag, second air bag is suitable for holding lens;The first air bag is set on the clamping surface of clamping jaw by being provided with first air bag and second air bag in the clamping jaw, second air bag holds lens, forms flexible clamping structure, can buffer lens in clamping process, effectively reduce the risk of lens breakage, in addition, using the mode of adjusting air bag expansion range, so that the same clamping jaw can adapt to different specifications, different shape lens optical surface in a certain range, improve the adaptability of device, clamping jaw cooperates air bag and holds lens, so that clamping is more stable, meet the positioning demand of laser etching.

Description

Technical Field

[0001] This utility model relates to the field of lens processing technology, specifically to a positioning gripper for laser etching of lenses. Background Technology

[0002] In the field of lens manufacturing, lens processing typically requires clamping and positioning as well as laser etching. Currently, the common method of lens clamping is to use clamping components that match the shape of the lens; however, laser etching (especially small-scale laser etching) requires extremely high precision in lens clamping and positioning. To ensure stable positioning and prevent lens displacement, these clamping components usually apply significant pressure when holding the lens.

[0003] Most existing lens clamping devices use rigid mechanical structures for clamping, which can easily damage the lens surface and requires high clamping precision, increasing the difficulty of control. During clamping, the optical surface of the lens cannot directly contact other objects to avoid contamination, a characteristic that makes positioning difficult during lens processing. Furthermore, existing clamping devices often require redesigning the grippers for different lens specifications, which not only increases resource, time, and labor costs but also reduces production efficiency.

[0004] Therefore, there is an urgent need for a new type of lens positioning gripper that can adapt to lenses of different sizes, effectively buffer the lenses during the clamping process to reduce the risk of lens breakage, and at the same time ensure the accuracy and stability of the clamping. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a positioning gripper for laser etching of lenses, which solves the problems of existing rigid grippers that easily damage lenses and are difficult to adapt to lenses of different specifications.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This application provides a positioning gripper for laser etching of lenses, comprising:

[0008] Grippers, used to hold lenses;

[0009] The first airbag is disposed on the clamping surface of the gripper;

[0010] The second airbag is used to receive the lens.

[0011] In a preferred embodiment, the first airbag and the second airbag are independently connected to the cylinder.

[0012] In one embodiment, it also includes:

[0013] The mounting mechanism is adapted to detachably connect the first airbag, the second airbag, and the gripper.

[0014] In a preferred embodiment, the mounting mechanism includes:

[0015] The clamping jaws are provided with at least two mounting slots.

[0016] The first connecting block is fixedly connected to the first airbag on one side;

[0017] The second connecting block is fixedly connected to the second airbag on one side;

[0018] The first connecting block and the second connecting block respectively engage with their corresponding mounting slots.

[0019] In one embodiment, the side of the first airbag that contacts the lens has anti-slip texture.

[0020] In a preferred embodiment, the side of the second airbag that contacts the lens is provided with anti-slip texture.

[0021] In a further preferred embodiment, the second airbag is provided with reinforcing ribs on both sides of the lens radially.

[0022] In one embodiment, the gripper is provided with a connecting groove.

[0023] In a preferred embodiment, both the first and second airbags are made of silicone rubber.

[0024] In a further preferred embodiment, both the surface of the first airbag and the second airbag are provided with a silicone coating.

[0025] This invention provides a positioning gripper for laser etching of lenses. Compared with the prior art, it has the following advantages:

[0026] This application incorporates a first airbag and a second airbag on the gripper. The first airbag is positioned on the gripper's holding surface, while the second airbag supports the lens, forming a flexible gripping structure. This structure cushions the lens during gripping, effectively reducing the risk of lens breakage. Furthermore, by adjusting the expansion amplitude of the airbags, the same gripper can adapt to different specifications and shapes of lens optical surfaces within a certain range, improving the adaptability of the device. The gripper, in conjunction with the airbags, grips the lens more stably, meeting the positioning requirements of laser etching. Attached Figure Description

[0027] 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.

[0028] Figure 1 This is a three-dimensional schematic diagram of a positioning gripper for laser etching of lenses, provided in this application.

[0029] Figure 2 This is a three-dimensional schematic diagram of a mounting mechanism for a positioning gripper used in laser etching of a lens, provided as an embodiment of this application.

[0030] In the diagram: 1. Gripper; 2. First airbag; 3. Second airbag; 4. Mounting mechanism;

[0031] 31. Reinforcing rib; 41. Mounting slot; 42. First connecting block; 43. Second connecting block. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, 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.

[0033] This application provides a positioning gripper for laser etching of lenses, which solves the problems of existing rigid clamping methods that easily damage lenses and are difficult to adapt to lenses of different specifications.

[0034] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0035] Example 1:

[0036] This application provides a positioning gripper for laser etching of lenses, comprising: a gripper 1 for holding a lens; a first airbag 2 disposed on the gripping surface of the gripper 1; and a second airbag 3 for receiving the lens.

[0037] In this embodiment, it should be noted that, see Figures 1-2As shown, when clamping a lens, the gripper 1 is generally used in conjunction with multiple grippers 1 to clamp the lens radially. The number of grippers 1 is determined according to the actual production process requirements, and is generally used in conjunction with a three-jaw cylinder or a four-jaw cylinder, that is, three or four grippers 1 are used simultaneously to clamp the lens radially to restrict the lens's degrees of freedom in order to meet the positioning requirements of laser etching. In addition, compared with the fully flexible gripper design, since the gripper 1 itself is not made of flexible material, it can form a firm clamping with the airbag, and the risk of falling off is relatively small.

[0038] See Figure 1 As shown, since the first airbag 2 is located on the clamping surface of the gripper 1, the first airbag 2 contacts the lens first during the clamping process of the gripper 1. Therefore, the first airbag 2 can buffer the lens during the clamping process, which reduces the risk of lens breakage compared with the existing common rigid clamping. In addition, since the material of the airbag is generally soft, it can adapt to the edge curvature of the lens with different radii within a certain range during the clamping process.

[0039] In addition, participate Figure 1 As shown, the second airbag 3 is suitable for receiving lenses. When a lens is placed on the gripper 1 for clamping, one optical surface of the lens needs to be supported by the gripper 1. It can be imagined that the second airbag 3 can buffer the lens placed on it and stably support the lens by inflating, reducing the risk of scratches and bumps to the optical surface of the lens that may be caused by the traditional rigid tray. Since the curvature of the optical surface of different lenses is often different, such as the convex lens protruding outward and the concave lens concave inward, the second airbag 3 adopts the method of inflating to adapt to the optical surface of the lens, thereby ensuring the receiving effect of different lenses and improving the versatility of this device.

[0040] In a preferred embodiment, the first airbag 2 and the second airbag 3 are independently connected to the cylinder.

[0041] In this embodiment, it should be noted that the power source for gripper 1 when gripping the lens is varied, and can be such as motor, hydraulic, cylinder, etc., which are existing technologies and their specific principles will not be elaborated here. When gripper 1 is driven by a cylinder, the driving cylinder of gripper 1 can be connected to the first airbag 2 and the second airbag 3 by setting up connecting pipes, solenoid valves, etc., so as to control the inflation of the first airbag 2 and the second airbag 3, saving equipment space. If gripper 1 is not driven by a cylinder, a cylinder is set up independently to inflate the first airbag 2 and the second airbag 3.

[0042] Furthermore, it is conceivable that independently adjusting the expansion amplitude of the first airbag 2 and the second airbag 3 can more flexibly adapt to lenses of different specifications, and even clamp some irregularly shaped lenses by adjusting the expansion amplitude of the first airbag 2 and the second airbag 3 on multiple grippers 1, thereby improving the versatility of this device.

[0043] Example 2:

[0044] This application provides a positioning gripper for laser etching of lenses, including all the contents of Embodiment 1 and its preferred embodiments, and further including:

[0045] Mounting mechanism 4 is adapted to detachably connect the first airbag 2, the second airbag 3 and the gripper 1.

[0046] In this embodiment, it should be noted that the mounting mechanism 4 is suitable for detachably connecting the first airbag 2, the second airbag 3 and the gripper 1, in ways including but not limited to threaded connection, snap-fit ​​connection, magnetic connection, etc. The purpose is to realize the modular design of the gripper 1. If the gripper 1 is damaged individually during use, it is not necessary to replace the entire gripper for repair, which can effectively save resources and extend the service life of the gripper 1 in this embodiment.

[0047] See Figure 2 As shown, in a preferred embodiment, the installation mechanism 4 includes: an installation slot, with at least two installation slots 41 provided on the gripper 1; a first connecting block 42, with a first airbag 2 fixedly connected to one side of the first connecting block 42; a second connecting block 43, with a second airbag 3 fixedly connected to one side of the second connecting block 43; the first connecting block 42 and the second connecting block 43 respectively engage with the corresponding installation slots 41.

[0048] In this embodiment, it should be noted that, as Figures 1-2 As shown, in this embodiment, the mounting mechanism 4 uses a snap-fit ​​method to detachably install the first airbag 2, the second airbag 3, and the gripper. Snap-fit ​​structures typically involve creating grooves and using protrusions and recesses to achieve a fit; this is existing technology, and its specific principles will not be elaborated here. The advantage of snap-fit ​​compared to other detachable connection methods lies in its mature technology and simple structure, making it easy to process and assemble.

[0049] Example 4:

[0050] This application provides a positioning gripper for laser etching of lenses, including all the contents of Embodiments 1 to 3 and their preferred embodiments. In addition, the side of the first airbag 2 that contacts the lens is provided with anti-slip texture.

[0051] In this embodiment, it should be noted that the outer surface of the first airbag 2 is provided with anti-slip texture to increase the friction with the lens and reduce the risk of the lens accidentally slipping during clamping. Anti-slip texture is commonly found in tires, gloves and other structures and is existing technology. Its specific principle will not be described here.

[0052] In a preferred embodiment, the side of the second airbag 3 that contacts the lens is provided with anti-slip texture.

[0053] In this embodiment, it should be noted that the outer surface of the second airbag 3 is provided with anti-slip texture to increase the friction with the lens and reduce the risk of the lens accidentally slipping off during clamping.

[0054] In a further preferred embodiment, the second airbag 3 is provided with reinforcing ribs 31 on both sides of the lens radially.

[0055] In this embodiment, it should be noted that, for details, please refer to [link / reference]. Figure 1 As shown, it can be imagined that the airbag generally expands in the direction of the thinner part of the airbag during the expansion process. By setting the reinforcing rib 31, the direction of airbag expansion can be controlled. In this embodiment, the reinforcing rib 31 controls the second airbag 3 to expand in the direction of the optical surface of the lens to enhance the support effect on the lens. In addition, the expansion of the second airbag 3 in the direction of the optical surface of the lens can achieve the adaptation of lenses with different curvature optical surfaces, especially lenses with concave inward lens surfaces.

[0056] Example 5:

[0057] This application provides a positioning gripper for laser etching of lenses, including all the contents of Embodiments 1 to 4 and their preferred embodiments. In addition, the gripper 1 is provided with a connecting groove.

[0058] In this embodiment, it should be noted that, generally, the gripper 1 and the power component of the driving gripper are designed to be assembled separately so that the gripper 1 can be replaced when it is damaged. Common ways of driving the gripper include motor drive, pneumatic drive, magnetic drive, etc. The connection methods between the gripper and the power component include, but are not limited to, threaded connection, snap-fit ​​connection, interference fit, magnetic connection, etc. The connecting groove provided on the gripper 1 can facilitate the installation and positioning of the gripper 1 on the power component. This is the prior art, and its specific principle will not be described here.

[0059] In a preferred embodiment, both the first airbag 2 and the second airbag 3 are made of silicone rubber.

[0060] In this embodiment, it should be noted that silicone rubber itself generally has a high elongation at break, and can deform slightly with the lens contour when clamped, which not only avoids excessive local pressure that could cause the lens to chip or leave indentations, but also ensures clamping stability through elastic fit; secondly, silicone rubber is highly inert and will not chemically react with the coatings on the lens surface (such as anti-reflective coatings), and releases less particulate residue to contaminate the lens, thus maintaining stable clamping performance and eliminating the need for frequent replacement.

[0061] In a further preferred embodiment, both the surface of the first airbag 2 and the second airbag 3 are provided with a silicone coating.

[0062] In this embodiment, it should be noted that silicone coatings are commonly used in electronic components, clothing, airbags, and other applications, and are considered existing technology. Using this coating can optimize the friction coefficient and wear resistance of the surfaces of the first airbag 2 and the second airbag 3, preventing slippage and displacement when the lens is clamped. At the same time, the coating can reduce particle release and surface adsorption, meeting the cleanliness requirements of lithography lenses.

[0063] In summary, compared with existing technologies, it has the following beneficial effects:

[0064] 1. This application forms a flexible clamping structure by setting a first airbag and a second airbag on the gripper, which can buffer the lens during the clamping process, effectively reducing the risk of lens breakage and avoiding the problem of damage to the lens surface caused by traditional rigid clamping structures.

[0065] 2. This application adopts a structural design in which the first airbag is set on the clamping surface of the gripper and the second airbag supports the lens. This design can adapt to the optical surfaces of lenses of different specifications and shapes within a certain range. By adjusting the expansion range of the airbag, the same gripper can be used for lenses of various specifications, which improves the versatility and adaptability of the device and reduces the resource investment required to redesign the gripper. The gripper and the airbag work together to hold the lens, making the clamping more stable and meeting the positioning requirements of laser etching.

[0066] 3. This application adopts a detachable installation mechanism (installation slot, first connecting block, second connecting block, etc.), which facilitates quick replacement and maintenance, reduces equipment downtime, has a simple structure, is easy to process and assemble, and improves production efficiency.

[0067] 4. The first and second airbags of this application are designed with soft materials such as silicone rubber, silicone coating, and anti-slip texture, which have good wear resistance and elasticity, prevent the lens from slipping, maintain good performance during long-term use, and extend service life.

[0068] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0069] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A positioning gripper for laser etching of lenses, characterized in that, include: Gripper (1), the gripper (1) is used to hold the lens; The first airbag (2) is disposed on the gripper (1); The second airbag (3) is disposed on one side of the gripper (1) and is suitable for receiving the lens.

2. The positioning gripper for laser etching of lenses as described in claim 1, characterized in that, The first airbag (2) and the second airbag (3) are independently connected to the cylinder.

3. The positioning gripper for laser etching of lenses as described in claim 1, characterized in that, It also includes an installation mechanism (4) adapted to detachably connect the first airbag (2), the second airbag (3) and the gripper (1).

4. A positioning gripper for laser etching of lenses as described in claim 3, characterized in that, The installation mechanism (4) includes: Multiple mounting slots (41), at least two of the mounting slots (41) are disposed on the gripper (1); The first connecting block (42) is fixedly connected to the first airbag (2) on one side; The second connecting block (43) is fixedly connected to the second airbag (3) on one side; The first connecting block (42) and the second connecting block (43) are respectively engaged with the corresponding mounting slots (41).

5. A positioning gripper for laser etching of lenses as described in claim 1, characterized in that, The first airbag (2) has anti-slip texture on the side that contacts the lens.

6. A positioning gripper for laser etching of lenses as described in claim 1, characterized in that, The second airbag (3) has anti-slip texture on the side that contacts the lens.

7. A positioning gripper for laser etching of lenses as described in claim 1, characterized in that, The second airbag (3) is provided with reinforcing ribs (31) on both sides along the radial direction of the lens.

8. A positioning gripper for laser etching of lenses as described in claim 1, characterized in that, The gripper (1) is provided with a connecting groove.

9. A positioning gripper for laser etching of lenses as described in claim 1, characterized in that, Both the first airbag (2) and the second airbag (3) are made of silicone rubber.

10. A positioning gripper for laser etching of lenses as described in claim 1, characterized in that, Both the first airbag (2) and the second airbag (3) have a silicone coating on their surfaces.

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