Multi-piece optical lens grinding device

Abstract

The utility model provides a multi -piece formula optical lens grinding device, including grinding mechanism and clamp, grinding mechanism includes first bowl type seat and second bowl type seat, and the inner surface of first bowl type seat has bonded abrasive layer, be provided with connecting rod on first bowl type seat, second bowl type seat is provided with connecting shaft, be provided with step hole on connecting shaft, after connecting rod passes through step hole and is connected with a fixed nut, be provided with spring on connecting rod in step hole, spring both ends are connected with step face of step hole and fixed nut respectively, be provided with a plurality of buffer washers between first bowl type seat and second bowl type seat. The utility model can effectively solve the technical problem that the pre -tightening force provided by the thread connection in the prior art is difficult to flexibly adjust according to actual processing demand.

Description

Technical Field

[0001] This utility model relates to the technical field of lens processing equipment, specifically to a multi-element optical lens grinding device. Background Technology

[0002] Lenses can be categorized into four types based on their materials: resin lenses, special lenses, space lenses, and glass lenses. Glass lenses are the primary type, possessing greater scratch resistance than lenses made of other materials, but they are also relatively heavier. Their refractive index is relatively high: ordinary lenses are 1.523, ultra-thin lenses are 1.72 and above, reaching up to 2.0. The main raw material for glass lenses is optical glass. During lens manufacturing, the lens surface needs to be polished to make it smoother.

[0003] Utility model patent CN217371735U discloses a grinding mechanism and equipment for facilitating the grinding of optical lenses of different materials. The grinding mechanism includes a support base and a grinding base. The support base is equipped with a clamping body for holding the lens. The grinding base includes a first bowl-shaped seat, a second bowl-shaped seat, and sandpaper. The first bowl-shaped seat is connected to a connecting post, and the connecting post is provided with a groove for pressing with a stylus. The first bowl-shaped seat has a threaded hole inside, and the second bowl-shaped seat has a threaded part. The first and second bowl-shaped seats are detachably connected by threads. The sandpaper is attached to the inner wall of the first bowl-shaped seat by adhesive.

[0004] In existing technologies, the first and second cup-shaped seats of a grinding mechanism are typically fixedly connected by threads. However, this connection method has significant limitations: since the lens mounted on the carrier needs to contact the sandpaper for grinding, the preload provided by the threaded connection is difficult to adjust flexibly according to actual processing requirements. When grinding lenses of different materials and specifications, a fixed preload may lead to uneven grinding pressure, thereby affecting the grinding accuracy and smoothness of the lens surface. Utility Model Content

[0005] The purpose of this invention is to provide a multi-piece optical lens grinding device that can effectively solve the technical problem that the preload provided by the threaded connection in the prior art is difficult to adjust flexibly according to actual processing requirements.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A multi-element optical lens grinding device includes a grinding mechanism and a fixture. The grinding mechanism includes a first bowl-shaped seat and a second bowl-shaped seat. An abrasive layer is bonded to the inner surface of the first bowl-shaped seat.

[0008] The first bowl-shaped seat is provided with a connecting rod, the second bowl-shaped seat is provided with a connecting shaft, the connecting shaft is provided with a stepped hole, the connecting rod passes through the stepped hole and is connected to a fixing nut, and a spring is provided on the connecting rod located in the stepped hole; the two ends of the spring are respectively connected to the stepped surface of the stepped hole and the fixing nut.

[0009] Several buffer washers are provided between the first and second bowl-shaped seats.

[0010] Furthermore, the second bowl-shaped seat has several mounting grooves arranged along its inner wall, and each mounting groove is provided with the aforementioned buffer washer.

[0011] The first bowl-shaped seat has several first through holes, and the second bowl-shaped seat has several second through holes.

[0012] Furthermore, a linear bearing or bushing is provided between the connecting rod and the stepped hole.

[0013] The stepped hole is also equipped with a first thrust ball bearing and a second thrust ball bearing. The first thrust ball bearing is located between the spring and the stepped surface of the stepped hole, and the second thrust ball bearing is located between the spring and the fixing nut.

[0014] Furthermore, the top of the clamp is provided with a groove, and the clamp is provided with several clamping bodies for clamping optical lenses.

[0015] Furthermore, the outer wall of the first bowl-shaped seat is provided with several polishing liquid channels.

[0016] The stepped hole has threads on its inner wall, and the second bowl-shaped seat is used to connect to the drive shaft via the threads.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention allows for flexible adjustment of the preload between the first and second cup-shaped seats by rotating a fixing nut to compress or stretch a spring. The preload is adjusted by squeezing a buffer washer. According to the grinding requirements of lenses of different materials and specifications, the grinding pressure can be precisely adjusted to ensure uniform pressure during the grinding process, significantly improving the grinding accuracy and surface finish of the lenses. Simultaneously, the buffer washer between the first and second cup-shaped seats effectively absorbs vibrations generated during the grinding process, reducing surface defects on the lenses caused by vibration, while also reducing wear on various components of the device and extending its service life. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This utility model Figure 1 A magnified view of a portion of point A in the middle.

[0022] Figure label:

[0023] 101 First bowl-shaped seat, 102 Second bowl-shaped seat, 103 Grinding layer, 104 Connecting rod, 105 Connecting shaft, 106 Stepped hole, 107 Fixing nut, 108 Spring, 109 Buffer washer, 110 Mounting groove, 111 Second through hole, 112 Linear bearing, 113 First thrust ball bearing, 114 Second thrust ball bearing, 115 Clamp, 116 Lens, 117 Drive shaft. Detailed Implementation

[0024] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0025] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0028] In this embodiment of the invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0030] The following is in conjunction with the appendix Figure 1 and attached Figure 2 The embodiments of this utility model will be described in detail below.

[0031] Example 1:

[0032] The multi-element optical lens grinding device disclosed in this embodiment includes a grinding mechanism and a fixture 115. The grinding mechanism includes a first bowl-shaped seat 101 and a second bowl-shaped seat 102. The inner surface of the first bowl-shaped seat 101 is fixed with a grinding layer 103 by an adhesive method. The grinding layer 103 can be selected with different grit grinding materials according to different grinding requirements.

[0033] The first bowl-shaped seat 101 has a connecting rod 104 on its outer side, and the second bowl-shaped seat 102 has a corresponding connecting shaft 105 with a stepped hole 106 machined inside. After the connecting rod 104 passes through the stepped hole 106, its end is threadedly connected to a fixing nut 107. A spring 108 is fitted onto the connecting rod 104 inside the stepped hole 106, with one end of the spring 108 abutting against the stepped surface of the stepped hole 106 and the other end contacting the fixing nut 107.

[0034] An adjustment gap is formed between the first bowl-shaped seat 101 and the second bowl-shaped seat 102, which also enables the flow of grinding fluid.

[0035] Several buffer washers 109 are provided between the first cup-shaped seat 101 and the second cup-shaped seat 102. By rotating the fixing nut 107 to compress the spring 108, the buffer washers 109 are squeezed, thereby adjusting the preload between the first cup-shaped seat 101 and the second cup-shaped seat 102.

[0036] The inner wall of the second bowl-shaped seat 102 is evenly arranged with several mounting grooves 110 along the circumference, and a buffer washer 109 is embedded in each mounting groove 11010. The buffer washer 109 is made of elastic material, such as rubber or silicone, which can effectively absorb vibrations during the grinding process, protect the lens 116 and improve the grinding accuracy.

[0037] The first bowl-shaped seat 101 has several first through holes, and the second bowl-shaped seat 102 has several second through holes 111. Polishing fluid can flow into the grinding area through the first and second through holes 111, which not only cools and dissipates heat, but also removes debris generated during the grinding process, ensuring the smooth progress of grinding.

[0038] A linear bearing 112 is provided between the connecting rod 104 and the stepped hole 106, which makes the movement of the connecting rod 104 within the stepped hole 106 smoother.

[0039] Alternatively, a bushing is provided between the connecting rod 104 and the stepped hole 106.

[0040] The top of the fixture 115 is machined with a groove. The groove is for contact with the iron pen; the fixture 115 is also provided with multiple clamping bodies for clamping optical lenses 116. Multiple optical lenses 116 can be clamped at the same time through the clamping bodies, realizing multi-piece grinding and improving production efficiency.

[0041] The stepped hole 106 of the second bowl-shaped seat 102 has threads machined on its inner wall. The second bowl-shaped seat 102 can be threadedly connected to the drive shaft through these threads, so that the grinding disc mechanism can perform grinding work as the drive shaft rotates.

[0042] Example 2:

[0043] This embodiment is a further optimization based on embodiment 1, and a first thrust ball bearing 113 and a second thrust ball bearing 114 are also provided in the stepped hole 106.

[0044] The first thrust ball bearing 113 is located between the spring 108 and the stepped surface of the stepped hole 106, and the second thrust ball bearing 114 is located between the spring 108 and the fixing nut 107. The thrust ball bearings reduce the friction between the spring 108 and the stepped hole 106 and the fixing nut 107 during compression, making the adjustment of the preload easier and smoother, and also improving the service life of the device.

[0045] Example 3:

[0046] This embodiment, based on Embodiment 1, adds several polishing fluid channels to the outer wall of the first bowl-shaped seat 101. These channels are connected to the first through hole, allowing more polishing fluid to flow into the grinding area, enhancing heat dissipation and debris removal capabilities, and further improving grinding quality and efficiency.

[0047] In actual use:

[0048] First, based on the material and specifications of the lens 116 to be ground, the compression of the spring 108 is adjusted by rotating the fixing nut 107, thereby determining the preload between the first bowl-shaped seat 101 and the second bowl-shaped seat 102.

[0049] Then the second bowl-shaped seat 102 is connected and fixed to the drive shaft 117 through the thread on the inner wall of the stepped hole 106.

[0050] Next, multiple optical lenses 116 are clamped onto the fixture 115 body, so that the lenses 116 come into contact with the polishing layer 103 of the first cup-shaped seat 101.

[0051] The drive shaft is started, which drives the grinding mechanism to rotate, while polishing fluid is injected into the polishing fluid channels and through holes. During the grinding process, the buffer washer 109 absorbs vibration, the spring 108 maintains a stable preload, and the polishing fluid dissipates heat and removes chips through the channels and through holes, thereby achieving efficient and high-precision grinding of multiple optical lenses 116.

[0052] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that any modifications, equivalent substitutions and improvements 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 multi-lens optical lens grinding apparatus, comprising a grinding mechanism and a fixture, characterized in that: The grinding mechanism includes a first bowl-shaped seat and a second bowl-shaped seat, and the inner surface of the first bowl-shaped seat is bonded with a grinding layer; The first bowl-shaped seat is provided with a connecting rod, the second bowl-shaped seat is provided with a connecting shaft, the connecting shaft is provided with a stepped hole, the connecting rod passes through the stepped hole and is connected to a fixing nut, and a spring is provided on the connecting rod located in the stepped hole; the two ends of the spring are respectively connected to the stepped surface of the stepped hole and the fixing nut. Several buffer washers are provided between the first and second bowl-shaped seats.

2. The multi-element optical lens grinding apparatus according to claim 1, characterized in that: The second bowl-shaped seat has several mounting grooves arranged along its inner wall, and each mounting groove is provided with the aforementioned buffer washer.

3. The multi-element optical lens grinding apparatus according to claim 1, characterized in that: The first bowl-shaped seat has several first through holes, and the second bowl-shaped seat has several second through holes.

4. The multi-element optical lens grinding apparatus according to claim 1, characterized in that: A linear bearing or bushing is installed between the connecting rod and the stepped hole.

5. The multi-element optical lens grinding apparatus according to claim 1, characterized in that: The stepped hole is also equipped with a first thrust ball bearing and a second thrust ball bearing. The first thrust ball bearing is located between the spring and the stepped surface of the stepped hole, and the second thrust ball bearing is located between the spring and the fixing nut.

6. The multi-element optical lens grinding apparatus according to claim 1, characterized in that: The top of the clamp is provided with a groove, and the clamp is provided with several clamping bodies for clamping optical lenses.

7. The multi-element optical lens grinding apparatus according to any one of claims 1-6, characterized in that: The outer wall of the first bowl-shaped seat is provided with several polishing liquid channels.

8. The multi-element optical lens grinding apparatus according to claim 1, characterized in that: The inner wall of the stepped hole is threaded, and the second bowl-shaped seat is used to connect with the drive shaft through the thread.

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