A clamping mechanism for optical lens grinding and polishing

Abstract

This invention provides a clamping mechanism for optical lens grinding and polishing, including an upper connector, a lower connector, and a sliding sleeve. The upper connector is used to connect to a motor, and the lower connector is used to rotatably connect to a lifting cylinder. The sliding sleeve is disposed on the side of the lower connector and is used to fix it to the frame of the grinding and polishing equipment. When the sliding sleeve is located at the upper part of the lower connector, the lower connector and the sliding sleeve form a positioning area. A channel is provided inside the lower connector, and the channel is connected to a negative pressure pump through a rotating sealing unit. A cavity is provided at the top of the lower connector, communicating with the channel. A support plate is provided on the lower connector to seal the cavity, and the support plate has several suction holes. This invention effectively solves the technical problems in the prior art where lenses easily slip during movement, causing lens position shift, and mechanical clamping may cause lens displacement due to uneven clamping force, affecting the grinding and polishing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of lens processing technology, specifically to a fixture mechanism for grinding and polishing optical lenses. Background Technology

[0002] In the grinding and polishing process of optical lenses, the stability and reliability of the fixture mechanism directly affect the processing accuracy and production efficiency of the lenses.

[0003] Utility model CN210756918U discloses a special fixture assembly for grinding dual-plane lenses, including a motor, an upper connector, a lifting cylinder, and a lower connector. The upper connector is connected to the motor and also includes a sliding sleeve, a first connecting shaft, a second connecting shaft, a bearing, and a connecting bracket. The sliding sleeve has a stepped through hole, through which it is slidably fitted onto the lower connector. The upper end of the connecting bracket is connected to the sliding sleeve, and the lower end is connected to the fixed end of the lifting cylinder. After connection, the end face of the lower connector extends 2-3 mm beyond the stepped surface of the stepped through hole. This fixture assembly can clamp the lens and allow the sliding sleeve to move automatically, preventing damage to the grinding mechanism due to forgetting to move the sliding sleeve, thus providing good protection.

[0004] In practical applications, the above solutions are prone to lens slippage, causing lens position to shift. Mechanical clamping may also cause lens displacement due to uneven clamping force, affecting polishing accuracy. Utility Model Content

[0005] The purpose of this utility model is to provide a clamping mechanism for grinding and polishing optical lenses, which can effectively solve the technical problems in the prior art where the lens is prone to slipping when it moves, causing the lens to shift position, and the mechanical clamping may cause the lens to shift due to uneven clamping force, thus affecting the grinding and polishing accuracy.

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

[0007] An optical lens grinding and polishing fixture mechanism includes an upper connector, a lower connector, and a sliding sleeve. The upper connector is used to connect to a motor, the lower connector is used to rotatably connect to a lifting cylinder, and the sliding sleeve is disposed on the side of the lower connector and is used to fixally connect to the frame of the grinding and polishing equipment. When the sliding sleeve is located at the upper part of the lower connector, the lower connector and the sliding sleeve form a positioning area.

[0008] The lower connector has a channel inside, which is connected to the negative pressure pump through a rotating sealing unit; the top of the lower connector has a cavity that communicates with the channel, and a support plate for sealing the cavity is provided on the lower connector, with several adsorption holes on the support plate.

[0009] The support plate is provided with an extension, which is threaded to the inner wall of the cavity.

[0010] Furthermore, a guide ramp is provided at the top of the sliding sleeve.

[0011] Preferably, the side of the sliding sleeve is provided with at least two notches that communicate with the positioning area.

[0012] Furthermore, the lower connector has a stepped structure as a whole, and a first guide slope is provided on the side of the lower connector.

[0013] The rotating sealing unit includes a sealing shell, which is rotatably sealed to the lower connector via a rotating sealing ring. A cavity is formed between the sealing shell and the side of the lower connector. The sealing shell is connected to a negative pressure pump via a pipe. An anti-rotation unit is connected to the sealing shell.

[0014] The anti-rotation unit includes a connecting plate and a guide rod. The guide rod is fixedly installed on the sliding sleeve, and the connecting plate is set on the sealed outer shell. The guide rod and the connecting plate are in sliding fit.

[0015] Furthermore, the upper connector is connected to a buffer unit, which includes a bracket, a spring, and a first guide rod. The first guide rod is fixedly connected to the upper connector, and the spring is fitted onto the first guide rod and located between the bracket and the upper connector. The first guide rod passes through the bracket and is connected to a locking nut. The bracket is used to connect to the motor.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention uses negative pressure adsorption to fix the lens, resulting in uniform and stable adsorption force. This effectively prevents the lens from shifting during processing, improving the processing accuracy of the lens. At the same time, a buffer unit is set up to adjust the pressure on the lens during grinding in real time, preventing excessive pressure from causing lens damage. It can also adapt to different grinding process requirements, improving the versatility of the fixture mechanism. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram showing the state when the lens of this utility model is fixed.

[0021] Figure label:

[0022] 101 Upper connector, 102 Lower connector, 103 Sliding sleeve, 104 Positioning area, 105 Channel, 106 Cavity, 107 Bearing plate, 108 Adsorption hole, 109 Extension, 110 Guide slope, 111 First guide slope, 112 Sealing shell, 113 Rotating sealing ring, 114 Anti-rotation unit, 115 Connecting plate, 116 Guide rod, 117 Buffer unit, 118 Bracket, 119 Spring, 120 First guide rod, 121 Locking nut. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0030] See Figure 1 and Figure 2 This embodiment discloses a fixture mechanism for grinding and polishing optical lenses, including an upper connector 101, a lower connector 102, and a sliding sleeve 103. The upper connector 101 is used to connect with a motor, and the lower connector 102 is used to rotatably connect with a lifting cylinder.

[0031] The sliding sleeve 103 is disposed on the side of the lower connector 102 and is used to be fixedly connected to the frame of the grinding and polishing equipment. When the sliding sleeve 103 is located at the upper part of the lower connector 102, the lower connector 102 and the sliding sleeve form a positioning area 104.

[0032] The lower connector 102 has a channel 105 inside, which is connected to the negative pressure pump through a rotating sealing unit; the lower connector 102 has a cavity 106 at the top, which is connected to the channel 105; the lower connector 102 has a support plate 107 for sealing the cavity 106, and the support plate 107 has a plurality of adsorption holes 108.

[0033] Furthermore, it should be noted that the carrier plate 107 is provided with an arc-shaped surface that matches the lens.

[0034] The support plate 107 is provided with an extension 109, which is threadedly connected to the inner wall of the cavity 106, making it easy to assemble and disassemble the support plate 107.

[0035] Furthermore, the top of the sliding sleeve 103 is provided with a guide slope 110, which serves as a guide to facilitate the placement of the lens within the positioning area 104.

[0036] The sliding sleeve 103 has at least two notches on its side that communicate with the positioning area 104. In this embodiment, three notches are provided to facilitate the removal of the lens.

[0037] The lower connector 102 has a stepped structure, and a first guide slope 110 is provided on the side of the lower connector 102. The first guide slope 111 is used to guide the sliding sleeve 103.

[0038] Furthermore, the rotating sealing unit includes a sealing housing 112, which is rotatably sealed to the lower connector 102 via a rotating sealing ring 113. The sealing housing 112 and the side of the lower connector 102 form a cavity. The sealing housing 112 is connected to the negative pressure pump via a pipe, and the sealing housing 112 is connected to an anti-rotation unit 114.

[0039] The anti-rotation unit 114 includes a connecting plate 115 and a guide rod 116. The guide rod 116 is fixedly mounted on the sliding sleeve 103, and the connecting plate 115 is disposed on the sealing housing 112. The guide rod 116 and the connecting plate 115 are in sliding engagement. The anti-rotation unit 114 can prevent the sealing housing 112 from rotating, ensuring that the sealing housing 112 and the lower connector 102 can move vertically.

[0040] Furthermore, the upper connector 101 is connected to a buffer unit 117, which includes a bracket 118, a spring 119, and a first guide rod 120. The first guide rod 120 is fixedly connected to the upper connector 101. The spring 119 is fitted onto the first guide rod 120 and is located between the bracket 118 and the upper connector 101. The first guide rod 120 passes through the bracket 118 and is connected to a locking nut 121. The bracket 118 is used to connect to the motor.

[0041] In practical applications, the specific usage method is as follows:

[0042] Step 1: Place the lens in the positioning area 104 formed by the sliding sleeve 103 and the lower connector 102. Guided by the guide slope 110 of the sliding sleeve 103, the lens falls accurately into the positioning position.

[0043] Step 2: Start the negative pressure pump. The negative pressure pump transmits negative pressure to the channel 105 and cavity 106 of the lower connector 102 by rotating the sealing unit, and then adsorbs and fixes the lens through the adsorption hole 108 on the carrier plate 107.

[0044] Step 3: Activate the lifting cylinder. The piston rod of the lifting cylinder drives the lower connector 102 to move upward, so that the lens contacts the upper connector 101.

[0045] Step 4: Start the motor. The motor drives the lens to rotate through the upper connector 101, while the grinding mechanism grinds and polishes the lens.

[0046] The buffer unit 117 can adjust the preload on the lens and can adjust the preload of the spring 119 by rotating the locking nut 121 as needed.

[0047] After the grinding and polishing process is completed, the lifting cylinder drives the lower connector 102 to move downward, shuts off the negative pressure pump, stops the adsorption, releases the lens, and removes the lens through the notch on the side of the sliding sleeve 103.

[0048] This invention employs negative pressure adsorption to fix the lens, resulting in uniform and stable adsorption force. This effectively prevents lens displacement during processing and improves lens processing accuracy. The inclusion of a rotating sealing unit and an anti-rotation unit 114 ensures the sealing performance and stability of the negative pressure system, guaranteeing the reliability of the negative pressure adsorption effect.

[0049] 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.

[0050] 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 clamping mechanism for grinding and polishing optical lenses, comprising an upper connector, a lower connector, and a sliding sleeve, wherein the upper connector is used for connection to a motor, and the lower connector is used for rotatable connection to a lifting cylinder, characterized in that: The sliding sleeve is located on the side of the lower connector and is used to fix it to the frame of the grinding and polishing equipment. When the sliding sleeve is located at the upper part of the lower connector, the lower connector and the sliding sleeve form a positioning area. The lower connector has a channel inside, which is connected to the negative pressure pump through a rotating sealing unit; the top of the lower connector has a cavity that communicates with the channel, and a support plate for sealing the cavity is provided on the lower connector, with several adsorption holes on the support plate.

2. The fixture mechanism for polishing and grinding optical lenses according to claim 1, wherein: An extension is provided on the support plate, and the extension is threaded to the inner wall of the cavity.

3. The fixture mechanism for polishing and grinding optical lenses according to claim 1, wherein: The top of the sliding sleeve is provided with a guide slope.

4. The fixture mechanism for polishing and grinding optical lenses according to claim 1, wherein: The side of the sliding sleeve has at least two notches that communicate with the positioning area.

5. The fixture mechanism for polishing and grinding optical lenses according to claim 1, wherein: The lower connector has a stepped structure and a first guide slope is provided on the side of the lower connector.

6. A fixture mechanism for grinding and polishing optical lenses according to any one of claims 1-5, characterized in that: The rotary sealing unit includes a sealing housing, which is rotatably sealed to the lower connector via a rotary sealing ring. A cavity is formed between the sealing housing and the side of the lower connector. The sealing housing is connected to a negative pressure pump via a pipe. An anti-rotation unit is connected to the sealing housing.

7. The clamping mechanism for grinding and polishing optical lenses according to claim 6, characterized in that: The anti-rotation unit includes a connecting plate and a guide rod. The guide rod is fixedly installed on the sliding sleeve, and the connecting plate is set on the sealed outer shell. The guide rod and the connecting plate are in sliding fit.

8. The clamping mechanism for grinding and polishing optical lenses according to claim 1, characterized in that: The upper connector is connected to a buffer unit, which includes a bracket, a spring, and a first guide rod. The first guide rod is fixedly connected to the upper connector. The spring is fitted onto the first guide rod and is located between the bracket and the upper connector. The first guide rod passes through the bracket and is connected to a locking nut. The bracket is used to connect to the motor.

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