Clamp mechanism with anti-skid structure

Abstract

The utility model discloses a clamp mechanism with antiskid structure, including clamp structure and positioning structure. The clamp structure includes base plate, fixed cylinder, support column, circular rubber ring and vacuum negative pressure valve, and fixed cylinder is fixed on the base plate through the support column, and circular rubber ring is bonded in fixed cylinder top, and vacuum negative pressure valve is installed in fixed cylinder bottom. The positioning structure includes fixed ring, positioning ring, rubber lining, arc electromagnet and spiral spring, and fixed ring is fixed in fixed cylinder lower part, and positioning ring is movably sleeved in fixed cylinder upper part, and its inner wall is equipped with rubber lining, and arc electromagnet is installed on fixed ring, and spiral spring is connected between fixed ring and positioning ring. The utility model discloses through vacuum adsorption and flexible contact to realize the non - destructive antiskid clamping of lens, and utilizes the quick positioning and processing avoidance of electromagnetic control's lifting type positioning ring, and effectively protects lens surface quality, avoids processing interference.

Description

Technical Field

[0001] This utility model relates to the field of optical glass lens processing technology, specifically a clamping mechanism with an anti-slip structure. Background Technology

[0002] In the production and finishing of optical glass lenses, specialized clamping mechanisms are usually required to stably hold and fix the lenses to ensure the accuracy and quality of subsequent processes such as edge grinding and coating.

[0003] Traditional clamps often use rigid jaws or mechanical blocks to directly contact the lens surface. While this can achieve fixation, the lens surface is prone to scratches, wear, or even microcracks due to localized stress concentration or differences in material hardness during clamping. This damage can seriously affect optical performance and product yield, especially for high-precision or coated lenses.

[0004] Therefore, we propose a clamping mechanism with an anti-slip structure. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a clamping mechanism with an anti-slip structure. By combining vacuum adsorption with an electromagnetically controlled lifting and positioning ring, it achieves non-destructive anti-slip clamping, rapid positioning, and automatic obstacle avoidance of optical lenses, effectively protecting the lens surface and avoiding processing interference. This effectively solves the problems in the background technology.

[0006] (II) Technical Solution To achieve the above objectives, the technical solution adopted by this utility model is as follows: a clamping mechanism with an anti-slip structure, comprising a clamping structure, wherein the clamping structure includes a base plate, a fixed cylinder, support columns, a circular rubber ring and a vacuum negative pressure valve, the fixed cylinder is a cylindrical structure with an open top and a closed bottom, and a positioning structure is installed on the outer wall of the fixed cylinder, wherein the positioning structure includes a fixing ring, a positioning ring, a rubber liner, an arc-shaped electromagnet and a helical spring, and the number of support columns is two sets, the two sets of support columns being fixed between the left and right sides of the upper outer surface of the base plate and the left and right sides of the lower outer surface of the fixed cylinder.

[0007] Preferably, the circular rubber ring is bonded and fixed to the upper outer surface of the fixed cylinder.

[0008] Preferably, the vacuum negative pressure valve is fixed in the middle of the outer surface of the lower end of the fixed cylinder, and the upper end of the vacuum negative pressure valve penetrates the bottom wall of the fixed cylinder and extends into its inner cavity.

[0009] Preferably, the fixing ring is fixed to the outer wall of the lower part of the fixing cylinder, the positioning ring is movably sleeved on the upper part of the fixing cylinder, and the rubber liner is fixed to the inner wall of the positioning ring.

[0010] Preferably, there are two sets of arc-shaped electromagnets and two sets of helical springs. The two sets of arc-shaped electromagnets are fixed on the left and right sides of the upper outer surface of the fixing ring, and the two sets of helical springs are fixed between the front and rear ends of the upper outer surface of the fixing ring and the front and rear ends of the lower outer surface of the positioning ring.

[0011] Preferably, the positioning ring is made of a metal that can be attracted by magnetic force; when the arc-shaped electromagnet is energized, it generates a magnetic force to attract the positioning ring, overcoming the elastic force of the helical spring and causing the positioning ring to descend to a position where its top is lower than the top of the fixed cylinder; when the arc-shaped electromagnet is de-energized, its magnetic force disappears, and the positioning ring rises to a position where its top protrudes above the top of the fixed cylinder under the reset action of the helical spring.

[0012] (III) Beneficial Effects Compared with the prior art, this utility model provides a clamping mechanism with an anti-slip structure, which has the following beneficial effects: 1. This clamping mechanism with an anti-slip structure, through the combination of a fixed cylinder, a circular rubber ring, and a vacuum negative pressure valve, can fix optical glass lenses by negative pressure adsorption. The circular rubber ring not only enhances the adsorption sealing, but its flexible contact characteristics also effectively avoid scratches, indentations, or wear on the lens surface caused by traditional rigid clamps, and also plays an anti-slip role, improving the stability and safety of clamping, and is especially suitable for high-precision or surface-coated optical lenses.

[0013] 2. This clamping mechanism with an anti-slip structure, through its positioning structure and the use of a lifting positioning ring controlled by an electromagnet, achieves rapid and accurate positioning of the lens during loading. In the initial state (when the electromagnet is de-energized), the positioning ring rises under the action of a spring, forming a positioning cavity, which facilitates the operator in placing the lens and aligning it with the center, improving loading efficiency and accuracy. After the lens is fixed, the electromagnet is energized to attract the positioning ring and lower it, causing it to completely exit the processing area, realizing the automated switching of "positioning-avoidance" and effectively avoiding interference between the clamp and the cutting tool or processing equipment during processing.

[0014] 3. The clamping mechanism with anti-slip structure has a rubber liner fixed to the inner wall of the positioning ring, which flexibly contacts the outer edge of the lens during the positioning process, preventing the lens edge from being scratched during the positioning process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a clamping mechanism with an anti-slip structure according to the present invention.

[0016] Figure 2 This is a schematic diagram of the clamping structure in a clamping mechanism with an anti-slip structure according to the present invention.

[0017] Figure 3 This is a schematic diagram of the bottom structure of the fixed cylinder in a clamping mechanism with an anti-slip structure according to the present invention.

[0018] Figure 4 This is a schematic diagram of the positioning structure in a clamping mechanism with an anti-slip structure according to the present invention.

[0019] In the diagram: 1. Clamp structure; 2. Positioning structure; 3. Base plate; 4. Fixing cylinder; 5. Support column; 6. Circular rubber ring; 7. Vacuum negative pressure valve; 8. Fixing ring; 9. Positioning ring; 10. Rubber liner; 11. Arc electromagnet; 12. Helical spring. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figure 1-4 As shown, the present invention provides a clamping mechanism with an anti-slip structure, which mainly includes a clamping structure 1 and a positioning structure 2 mounted thereon.

[0022] The fixture structure 1 includes a base plate 3 serving as the mounting base. The base plate 3 is preferably fixed to a workbench or processing equipment by bolts. A cylindrical fixing cylinder 4, open at the top and closed at the bottom, is fixedly connected to the top of the base plate 3 by two sets of left and right support columns 5. A circular rubber ring 6, which is soft, elastic, and has good sealing properties, is fixed to the outer surface of the top of the fixing cylinder 4 by adhesive bonding. A vacuum pressure valve 7 is installed in the middle of the lower outer surface of the fixing cylinder 4, with its upper end penetrating the bottom wall of the fixing cylinder 4 and extending into its inner cavity. The vacuum pressure valve 7 is used to connect an external vacuum device (such as a vacuum pump) to generate negative pressure in the inner cavity of the fixing cylinder 4.

[0023] The positioning structure 2 is fitted onto the outside of the fixing cylinder 4. It includes a fixing ring 8, a positioning ring 9, a rubber liner 10, two sets of arc-shaped electromagnets 11, and two sets of helical springs 12. The fixing ring 8 is fixedly installed on the lower outer wall of the fixing cylinder 4. The positioning ring 9 is movably fitted onto the upper part of the fixing cylinder 4, and its inner wall is fixed with a rubber liner 10 to ensure flexible contact with the edge of the lens. The positioning ring 9 is made of a metal that can be attracted by magnetic force, such as low-carbon steel. The two sets of arc-shaped electromagnets 11 are fixedly installed on the left and right sides of the upper outer surface of the fixing ring 8, respectively. The two sets of helical springs 12 are installed between the front and rear ends of the upper outer surface of the fixing ring 8 and the front and rear ends of the lower outer surface of the positioning ring 9, respectively.

[0024] The working principle and usage process of this utility model are as follows: In the initial state or when lens loading and positioning are required, the arc-shaped electromagnet 11 is de-energized. At this time, the positioning ring 9 is pushed upward by the restoring force of the two sets of helical springs 12, so that its top end protrudes beyond the top opening plane of the fixed cylinder 4. In this way, the positioning ring 9 and the circular rubber ring 6 at the top of the fixed cylinder 4 together form a positioning cavity. The operator can easily place the optical glass lens on the circular rubber ring 6, and the raised positioning ring 9 performs preliminary circumferential positioning and limiting, effectively improving the loading efficiency and centering accuracy.

[0025] After the lens is vacuum-adsorbed and fixed, energizing the two sets of arc-shaped electromagnets 11 is applied. The energized arc-shaped electromagnets 11 generate a strong magnetic force, attracting the positioning ring 9, made of magnetic metal material, to move downwards. The positioning ring 9 overcomes the elastic force of the helical spring 12 and descends until its top is completely below the opening plane of the top of the fixing cylinder 4. This action allows the positioning ring 9 to completely exit the clamping and processing area where the lens is located, achieving automated switching between "positioning and avoidance," thus effectively preventing interference between the positioning ring 9 and processing tools or equipment during subsequent edge grinding, coating, and other processing.

[0026] Throughout the entire lifting and lowering process of the positioning ring 9, the rubber liner 10 on its inner wall always maintains flexible contact with the outer edge of the lens or is in a non-interference state, preventing the lens edge from being scratched during positioning or avoidance.

[0027] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., 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.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A clamping mechanism with an anti-slip structure, comprising a clamping structure (1), characterized in that: The clamp structure (1) includes a base plate (3), a fixed cylinder (4), a support column (5), a circular rubber ring (6), and a vacuum negative pressure valve (7). The fixed cylinder (4) is a cylindrical structure with an open top and a closed bottom. A positioning structure (2) is installed on the outer wall of the fixed cylinder (4). The positioning structure (2) includes a fixing ring (8), a positioning ring (9), a rubber liner (10), an arc electromagnet (11), and a spiral spring (12). The number of support columns (5) is two sets. The two sets of support columns (5) are fixed between the left and right sides of the upper outer surface of the base plate (3) and the left and right sides of the lower outer surface of the fixed cylinder (4).

2. The clamping mechanism with an anti-slip structure according to claim 1, characterized in that: The circular rubber ring (6) is bonded and fixed to the upper outer surface of the fixed cylinder (4).

3. A clamping mechanism with an anti-slip structure according to claim 2, characterized in that: The vacuum negative pressure valve (7) is fixed in the middle of the outer surface of the lower end of the fixed cylinder (4), and the upper end of the vacuum negative pressure valve (7) penetrates the bottom wall of the fixed cylinder (4) and extends into its inner cavity.

4. A clamping mechanism with an anti-slip structure according to claim 1, characterized in that: The fixing ring (8) is fixed to the outer wall of the lower part of the fixing cylinder (4), the positioning ring (9) is movably sleeved on the upper part of the fixing cylinder (4), and the rubber liner (10) is fixed to the inner wall of the positioning ring (9).

5. A clamping mechanism with an anti-slip structure according to claim 4, characterized in that: The number of arc electromagnets (11) and helical springs (12) are both two sets. The two sets of arc electromagnets (11) are fixed on the left and right sides of the upper outer surface of the fixing ring (8), and the two sets of helical springs (12) are fixed between the front and rear ends of the upper outer surface of the fixing ring (8) and the front and rear ends of the lower outer surface of the positioning ring (9).

6. A clamping mechanism with an anti-slip structure according to claim 5, characterized in that: The positioning ring (9) is made of a metal that can be attracted by magnetic force. When the arc electromagnet (11) is energized, it generates a magnetic force to attract the positioning ring (9), overcoming the elastic force of the helical spring (12) and causing the positioning ring (9) to descend to a position where its top end is lower than the top end of the fixed cylinder (4). When the arc electromagnet (11) is de-energized, its magnetic force disappears, and the positioning ring (9) rises to a position where its top end protrudes above the top end of the fixed cylinder (4) under the reset action of the helical spring (12).

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