Double-sided flat grinding jig and glass double-sided grinding equipment

Abstract

The utility model discloses a double -sided flat grinding jig and glass double -sided grinding equipment. The jig includes the first structural member made of first material and the second structural member made of second material, and the two combination forms the jig body, the first structural member is the outer ring structure, adopts the resin fiber press fit board material of high hardness, and the outer edge is equipped with the tooth profile structure that cooperates with grinding equipment, the second structural member is the inner ring structure, adopts the iron fluorine dragon material of lower hardness, and forms a plurality of product accommodation parts in its inside, when the lens is placed in the product accommodation part, its straight body position is contacted with the soft iron fluorine dragon material, and effectively prevents the scratch in the grinding process. The outer ring and the inner ring are detachably connected through the buckle structure, and are convenient for maintenance replacement. The case passes through the combination of soft and hard material, guarantees the structural strength of the jig, solves the lens straight body position scratch problem, and improves the product yield.

Description

Technical Field

[0001] This utility model relates to the field of optical lens processing technology, and in particular to a double-sided flat grinding fixture and a double-sided glass grinding equipment. Background Technology

[0002] With the rapid development of electronic products such as smartphones, smart wearable devices, and tablets, the requirements for their accompanying optical lenses in terms of structural design and processing technology are becoming increasingly stringent. In actual production, due to limitations in raw material specifications, many optical lenses require thinning through double-sided grinding to meet product thickness requirements. However, traditional double-sided flat grinding fixtures are typically made of a single hard material (such as resin fiber laminated sheet). While this material has high hardness and good wear resistance, enabling it to withstand prolonged grinding operations, its cutting surface has a relatively high roughness. During the extended grinding process, the edge of the lens (the straight side) placed within the fixture frequently rubs against the fixture's hard sidewalls, resulting in scratches, abrasions, and other cosmetic defects on the straight side of the lens. These cosmetic defects are usually irreparable, severely impacting product yield and quality, and increasing production costs. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a double-sided flat grinding fixture and a glass double-sided grinding equipment that effectively prevents scratches on the straight side of optical lenses during the grinding process.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A double-sided flat grinding fixture includes: a first structural member made of a first material for connecting with a grinding device; a second structural member made of a second material, which is combined with the first structural member to form a fixture body, wherein the hardness of the second material is lower than that of the first material; and at least one product receiving portion formed in the fixture body for receiving an optical lens to be ground; wherein the second structural member forms a sidewall of the product receiving portion, such that the lens placed in the product receiving portion is in direct contact with the second material.

[0006] Furthermore, the first structural component is an outer ring structure, and the second structural component is an inner ring structure, with the inner ring structure disposed on the inner side of the outer ring structure; the outer edge of the outer ring structure is provided with a toothed structure for mating with the toothed plate of the grinding equipment.

[0007] Furthermore, the product accommodating portion comprises multiple parts, which are evenly distributed along the circumferential direction within the inner ring structure.

[0008] Furthermore, the plurality of product accommodating portions are arranged radially, forming a multi-layered concentric circle distribution.

[0009] Furthermore, the first material is a resin fiber laminated board, and the second material is Teflon material.

[0010] Furthermore, the hardness of the Teflon material is 70-80 HRD.

[0011] Furthermore, the inner wall of the outer ring structure is provided with a positioning structure, and the outer wall of the inner ring structure is provided with a mating structure that cooperates with the positioning structure, so that the inner ring structure can be detachably installed inside the outer ring structure.

[0012] Furthermore, the positioning structure is a positioning groove evenly distributed along the circumferential direction on the inner wall of the outer ring structure, and the groove opening width is smaller than the groove cavity width; the mating structure is a positioning protrusion evenly distributed along the circumferential direction on the outer peripheral edge of the inner ring structure, the positioning protrusion includes a narrow neck connected to the inner ring structure and an enlarged head located at the outer end of the neck, the diameter of the enlarged head is larger than the diameter of the neck and matches the groove cavity, and the diameter of the neck matches the groove opening; the clamping connection is achieved by pressing the enlarged head into the groove cavity.

[0013] Furthermore, the surface smoothness of the cutting location of the second material is higher than that of the cutting location of the first material.

[0014] A glass double-sided grinding apparatus includes the aforementioned double-sided flat grinding fixture; wherein, a glass optical element to be ground is placed in the product receiving portion of the double-sided flat grinding fixture, and the hardness value of the second material of the second structural component is lower than the hardness value of the glass optical element.

[0015] The beneficial effects of this utility model are:

[0016] This utility model discloses a double-sided grinding fixture, comprising a first structural component made of a first material and a second structural component made of a second material, which are combined to form the fixture body. The first structural component is an outer ring structure made of high-hardness resin fiber laminated sheet, with a toothed structure on its outer edge to cooperate with the grinding equipment. The second structural component is an inner ring structure made of low-hardness Teflon material, with multiple product receiving parts formed inside. When the lens is placed in the product receiving part, its straight side contacts the soft Teflon material, effectively preventing scratches during the grinding process. The outer ring and inner ring are detachably connected by a snap-fit ​​structure for easy maintenance and replacement. This double-sided glass grinding equipment, through the combination of hard and soft materials, ensures the structural strength of the fixture while solving the problem of scratches on the straight side of the lens, thus improving product yield. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the first component of this utility model;

[0020] Figure 3 This is a structural schematic diagram of the second component of this utility model.

[0021] in,

[0022] 1. First structural component; 11. Toothed structure; 12. Positioning structure;

[0023] 2. Second structural component; 21. Product housing; 22. Mating structure. Detailed Implementation

[0024] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0025] This invention provides a double-sided flat grinding fixture, which is suitable for double-sided grinding of optical lenses in smart products such as mobile phones, wearable devices, and tablets, and can effectively solve the problem of direct-side scratches on lenses in traditional grinding processes.

[0026] Reference Figure 1 , 2 The double-sided flat grinding fixture includes a first structural component 1 and a second structural component 2, which together form the fixture body. The first structural component 1 is made of a first material, specifically a resin fiber laminated board. This material has the characteristics of high hardness and good wear resistance, and can withstand mechanical stress and wear during the grinding process, but the roughness of the cutting position is high. At the same time, the first structural component 1 is an outer ring structure, and its outer edge is provided with a toothed structure 11. The toothed structure 11 is used to cooperate with the toothed plate of the grinding equipment to ensure that the fixture can be stably fixed on the grinding equipment and rotate with it during the grinding process.

[0027] Reference Figure 3The second structural component 2 is made of a second material, specifically Teflon, which has a hardness of 70-80 HRD, lower than that of the first material. Teflon has excellent self-lubricating properties and a low coefficient of friction. The surface smoothness of its cutting position is higher than that of the resin fiber laminated board. The second structural component 2 is an inner ring structure, located inside the outer ring structure. Multiple product accommodating parts 21 are formed in the fixture body. The multiple product accommodating parts 21 are evenly distributed along the circumferential direction inside the inner ring structure and are arranged radially to form a multi-layer concentric circle distribution. Each product accommodating part 21 is used to accommodate the optical lens to be ground. Figure 1 The image shows the product housing 21 with or without the product being placed. Black indicates that the optical lens to be ground has been placed, and white indicates that it has not been placed.

[0028] The size, shape, and thickness of the product housing 21 can be customized according to the specific specifications of the optical lens to be processed. For example, it can be designed as a circle, square, oval, or other irregular shape to meet the grinding requirements of optical components of different types of smart products such as mobile phone camera protective lenses, smart watch watch lenses, and tablet touch panel glass, ensuring that the lens is accurately positioned in the housing and will not be displaced or flipped during the grinding process.

[0029] In practical use, when optical components such as mobile phone camera protective lenses, smart watch watch lenses, or tablet touch panel glass are placed in the product housing 21, the straight part of the lens (i.e., the side wall of the lens) is in direct contact with the Teflon material of the second material. Since the hardness of the Teflon material is lower than that of the glass lens and its surface is smoother, even if there is relative movement or friction between the lens and the fixture during the grinding process, the Teflon material will be worn down preferentially than the glass lens, thereby forming a soft protective layer, effectively preventing scratches, abrasions and other appearance defects on the straight part of the lens.

[0030] For ease of maintenance and replacement, in some embodiments, reference is made to... Figure 1-3 The outer ring structure and the inner ring structure are detachably connected. The inner wall of the outer ring structure has a positioning structure 12, and the outer wall of the inner ring structure has a mating structure 22 that cooperates with the positioning structure 12, allowing the inner ring structure to be detachably installed inside the outer ring structure.

[0031] Specifically, the positioning structure 12 consists of positioning grooves evenly distributed along the circumference on the inner wall of the outer ring structure. The width of the groove opening of each positioning groove is smaller than the width of the groove cavity, forming an inverted groove shape. Correspondingly, the mating structure 22 consists of positioning protrusions evenly distributed along the circumference on the outer periphery of the inner ring structure. Each positioning protrusion includes a narrow neck connected to the inner ring structure and an enlarged head located at the outer end of the neck. The diameter of the enlarged head is larger than the diameter of the neck and matches the groove cavity. The diameter of the neck matches the groove opening. During assembly, the enlarged head is pressed into the groove cavity to achieve a snap-fit ​​connection. The snap-fit ​​connection structure not only ensures a stable connection between the inner and outer rings and prevents relative rotation during grinding, but also facilitates individual replacement when the inner ring structure is worn, reducing the cost of use.

[0032] In a specific application example, when processing the protective glass for a smartphone rear camera module, due to the limitations of raw material thickness specifications, it is necessary to reduce the 2.0mm thick glass sheet to 1.2mm. Using the double-sided grinding fixture of this invention, multiple round or square lenses are placed in the respective product receiving parts 21 of the fixture. After starting the double-sided grinding equipment, the upper and lower grinding discs grind the lenses on both sides. During the grinding process, the edge of the lens continuously contacts and rubs against the side wall of the Teflon material. However, due to the protective effect of the Teflon material, the straight part of the lens remains smooth, avoiding the scratch problem caused by traditional hard fixtures. After grinding, the lens not only meets the tolerance requirement of 1.2±0.02mm in thickness, but also meets the strict standards of smartphone camera modules in appearance quality, without the need for additional repair procedures.

[0033] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A double-sided flat grinding jig, characterized by, include: The first structural component, made of the first material, is used to connect with the grinding equipment. The second structural component is made of a second material and is combined with the first structural component to form the jig body. The hardness of the second material is lower than that of the first material. At least one product receiving portion is formed in the fixture body for receiving an optical lens to be ground; The second structural member forms the sidewall of the product receiving portion, so that the lens placed in the product receiving portion is in direct contact with the second material.

2. The double-sided surface grinding fixture according to claim 1, characterized in that: The first structural component is an outer ring structure, and the second structural component is an inner ring structure, wherein the inner ring structure is disposed inside the outer ring structure; The outer edge of the outer ring structure is provided with a toothed structure for mating with the toothed plate of the grinding equipment.

3. The double-sided surface grinding fixture according to claim 2, characterized in that: The product accommodating part is multiple and is evenly distributed along the circumferential direction inside the inner ring structure.

4. The double-sided surface grinding fixture according to claim 3, characterized in that: The multiple product accommodating parts are arranged radially, forming a multi-layered concentric circle distribution.

5. The double-sided surface grinding fixture according to any one of claims 1-4, characterized in that: The first material is a resin fiber laminated board, and the second material is Teflon material.

6. The double-sided surface grinding fixture according to claim 5, characterized in that: The Teflon material has a hardness of 70-80 HRD.

7. The double-sided surface grinding fixture according to claim 2, characterized in that: The inner wall of the outer ring structure is provided with a positioning structure, and the outer wall of the inner ring structure is provided with a mating structure that cooperates with the positioning structure, so that the inner ring structure can be detachably installed inside the outer ring structure.

8. The double-sided surface grinding fixture according to claim 7, characterized in that: The positioning structure is a positioning groove evenly distributed along the circumferential direction on the inner wall of the outer ring structure, and the groove opening width is smaller than the groove cavity width. The mating structure consists of positioning protrusions evenly distributed along the circumferential direction on the outer periphery of the inner ring structure. Each positioning protrusion includes a narrow neck connected to the inner ring structure and an enlarged head located at the outer end of the neck. The diameter of the enlarged head is larger than the diameter of the neck and matches the groove cavity. The diameter of the neck matches the groove opening. A locking connection is achieved by pressing the enlarged head into the groove cavity.

9. The double-sided surface grinding fixture according to claim 1, characterized in that: The surface smoothness of the cut location of the second material is higher than that of the cut location of the first material.

10. A glass double-sided polishing apparatus characterized by comprising: include: The double-sided surface grinding fixture as described in any one of claims 1-9; The double-sided grinding fixture contains a glass optical element to be ground within its product housing. The second material of the second structural component has a hardness value lower than that of the glass optical element.

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