High-efficiency polishing and positioning device for aspherical lens

Abstract

The utility model discloses a kind of aspherical lens high-efficiency polishing positioning device, it is related to lens polishing technical field, including assembly ring, several installation grooves are set in the outer wall of assembly ring, and inside fixed mounting has connecting arm, the inner wall of installation groove is set with snap groove and several positioning holes one, and installation assembly is provided, permanent magnet is fixedly installed in snap groove, installation assembly includes mounting plate and several installation rods, the one end of mounting plate is provided with grabbing component, and the other end is fixedly installed with several iron sheet;Through the cooperation between permanent magnet and iron sheet, after several installation rods are inserted into positioning hole one, permanent magnet is adsorbed iron sheet and mounting plate by magnetism, so that several installation rods are not manually exerted force before locking, installation rod also cannot fall from positioning hole one, staff is not needed to hold installation assembly all the time, and then reduce operation difficulty, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lens polishing technology, specifically to a high-efficiency polishing and positioning device for aspherical lenses. Background Technology

[0002] Aspherical lenses are lenses whose surfaces are not spherical or cylindrical. In photography, lenses containing aspherical optical elements have a different surface curvature than ordinary spherical lenses. To achieve thinner lenses, the curvature of the lens needs to be changed. Modern aspherical designs correct images and solve problems such as field of vision distortion. At the same time, they make the lenses lighter, thinner, and flatter, while still maintaining excellent impact resistance, ensuring safe use for the wearer. During the manufacturing process of aspherical lenses, the lenses need to be polished. To improve polishing efficiency, the lenses usually need to be gripped and positioned during polishing to prevent the lenses from moving and affecting polishing efficiency and quality.

[0003] Existing aspherical lens grinding positioning devices do not install different types of gripping components on the same assembly structure. When different types of lenses need to be gripped and ground, the equipment or gripping mechanism needs to be changed, which cannot be done quickly, affecting work efficiency and having poor applicability. At the same time, there is no positioning auxiliary structure when installing gripping components. When installing bolts or flanges, deviations during installation can easily lead to more installation time, thus affecting installation efficiency and having great limitations. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides an efficient grinding and positioning device for aspherical lenses to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] A high-efficiency grinding and positioning device for aspherical lenses includes an assembly ring. The outer wall of the assembly ring has several mounting grooves, and a connecting arm is fixedly installed inside. The inner wall of each mounting groove has a slot and several positioning holes, and a mounting assembly is provided. A permanent magnet is fixedly installed in each slot. The mounting assembly includes a mounting plate and several mounting rods. One end of the mounting plate has a gripping component, and the other end has several iron plates fixedly installed. The gripping component includes a conical contact head, which can grip the lens through negative pressure. The number of mounting rods corresponds to the number of positioning holes. The connecting arm is slidably fitted with a fixed ring and a limiting ring on its outer wall. A plurality of positioning slide rods are fixedly installed at one end of the limiting ring. A cover plate is slidably fitted on the outer wall of the plurality of positioning slide rods, and a fixing screw is fixedly installed at one end of the fixing screw. A fastening nut is threaded on the fixing screw. A plurality of insert rods are fixedly installed at one end of the cover plate. A single insert rod can penetrate two mounting rods and abut against the inner wall of the assembly ring. The permanent magnet is magnetically engaged with the iron sheet and initially positions the mounting plate. The mounting rod and the positioning hole are in a transition fit.

[0006] Preferably, the gripping assembly further includes a vent pipe and an adsorption column. The adsorption column is fixedly connected to and communicates with the vent pipe and the conical contact head. The vent pipe is fixedly installed on the top of the mounting plate. The conical contact heads are of different types. The six mounting grooves are evenly distributed along the circumferential direction of the outer wall of the assembly ring. The fixing ring is fixedly connected to the limiting ring.

[0007] Preferably, the gripping assembly further includes a threaded sleeve and a protective cover, the threaded sleeve being fixedly installed at one end of the vent pipe, the protective cover being threaded onto the threaded sleeve, and the end face of the conical contact head being covered with an elastic pad.

[0008] Preferably, the cover plate is slidably sleeved on the fixing ring and abuts against one end of the limiting ring, and the insert rod is slidably engaged with the mounting rod.

[0009] Preferably, one end of the cover plate is provided with a plurality of positioning holes II, the positioning holes II penetrate the cover plate, the positioning slide rod is slidably engaged with the positioning holes II, and the plurality of positioning slide rods and the plurality of positioning holes II are arranged in a circumferential array along the limiting ring and the cover plate respectively.

[0010] Preferably, the mounting groove has six openings, and there are three positioning holes and three positioning slide rods. The inner diameter of the positioning hole is the same as the diameter of the positioning slide rod.

[0011] Preferably, a flange is fixedly installed at one end of the connecting arm.

[0012] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows: This utility model provides a high-efficiency grinding and positioning device for aspherical lenses. Through the mutual cooperation between a permanent magnet and an iron sheet, after several mounting rods are inserted into the positioning hole, the permanent magnet magnetically attracts the iron sheet and the mounting plate. This ensures that the mounting rods will not fall out of the positioning hole before locking, even if no manual force is applied. This improves installation efficiency. At the same time, several mounting slots are provided, allowing different types of gripping components to be selected by rotating the assembly ring. This provides high adjustment efficiency, a wide range of applications, and further enhances applicability.

[0013] This utility model provides a high-efficiency grinding and positioning device for aspherical lenses. Through the cooperation between positioning slide rods, fixing screws, fixing rings, limiting rings, and cover plates, the cover plate slides on the fixing ring and engages with several positioning slide rods until one side of the cover plate abuts against the limiting ring. Then, several fastening nuts are installed to lock the cover plate. The positioning method reduces the installation time and improves installation efficiency. At the same time, several insert rods on one side of the cover plate can pass through several mounting rods and lock the mounting rods, thereby enabling the simultaneous installation of multiple mounting components and effectively improving installation efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the assembly ring in this utility model; Figure 3 for Figure 2 A magnified structural diagram of part A in the middle; Figure 4 This is a three-dimensional structural diagram of the mounting component and the gripping component in this utility model; Figure 5 This is a schematic diagram showing the fit between the insertion rod and the mounting rod in this utility model.

[0015] In the picture: 1. Assembly ring; 101. Mounting groove; 102. Slot; 103. Permanent magnet; 104. Positioning hole one; 2. Mounting assembly; 200. Protective cover; 201. Mounting plate; 202. Vent pipe; 203. Adsorption column; 204. Threaded sleeve; 205. Conical contact head; 206. Mounting rod; 207. Iron sheet; 3. Connecting arm; 301. Fixing ring; 302. Limiting ring; 303. Positioning slide rod; 304. Fixing screw; 305. Fastening nut; 4. Flange; 5. Cover plate; 501. Positioning hole two; 502. Insert rod. Detailed Implementation

[0016] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments: like Figure 1-5 As shown, this utility model provides a high-efficiency grinding and positioning device for aspherical lenses, including an assembly ring 1. The outer wall of the assembly ring 1 has several mounting grooves 101, and a connecting arm 3 is fixedly installed inside. The inner wall of the mounting grooves 101 has slots 102 and several positioning holes 104, and an installation component 2 is provided. A permanent magnet 103 is fixedly installed in the slots 102. The installation component 2 includes an installation plate 201 and several installation rods 206. One end of the installation plate 201 is provided with a gripping component, and the other end is fixedly installed with several iron pieces 207. The gripping component includes a conical contact head 205, which can grip the lens through negative pressure. The number of installation rods 206 corresponds to the number of positioning holes 104 and they slide together. One end of the cover plate 5 is fixedly installed with several insertion rods 502. A single insertion rod 502 can penetrate two installation rods 206 and abut against the inner wall of the assembly ring 1. The permanent magnet 103 and the iron pieces 207 are magnetically coupled. The assembly is assembled and the mounting plate 201 is initially positioned. The mounting rod 206 and the positioning hole 104 are in transition fit. The gripping assembly also includes a vent pipe 202 and an adsorption column 203. The adsorption column 203 is fixedly connected to the vent pipe 202 and the conical contact head 205 and they are interconnected. The vent pipe 202 is fixedly installed on the top of the mounting plate 201. The gripping assembly also includes a threaded sleeve 204 and a protective cover 200. The threaded sleeve 204 is fixedly installed on one end of the vent pipe 202. The protective cover 200 is threaded onto the threaded sleeve 204. The end face of the conical contact head 205 is covered with an elastic pad. A flange 4 is fixedly installed on one end of the connecting arm 3. Several conical contact heads 205 are of different types. Six mounting grooves 101 are evenly distributed along the circumferential direction of the outer wall of the assembly ring 1. Three positioning slide rods 303 and three positioning holes 501 are arranged in a circumferential array along the limiting ring 302 and the cover plate 5, respectively. The fixing ring 301 is fixedly connected to the limiting ring 302.

[0017] After the mounting plate 201 is aligned with the mounting groove 101 and several mounting rods 206 are inserted into the positioning holes 104, the permanent magnet 103 magnetically attracts the iron sheet 207, thereby applying a certain attraction force to the mounting plate 201. This ensures that the mounting plate 201 is stably attached to the mounting groove 101, preventing the already installed mounting components 2 from falling off when installing other mounting plates 201. This reduces installation difficulty, eliminates the need for multiple workers to cooperate, and has strong applicability. Furthermore, after the equipment is mounted on the rotating mechanism via the flange 4, the rotating mechanism can rotate the assembly ring... The positions of several gripping components are changed in a certain way, so that different types of conical contact heads 205 in several gripping components can grip different types of lenses. The adjustment efficiency is high. The protective cover 200 can protect the unused conical contact heads 205 and prevent damage to the remaining unused conical contact heads 205 during lens processing, thereby improving the protection effect. At the same time, when the equipment is running, the vent pipe 202 needs to be connected to the negative pressure source so that the negative pressure source can turn the gripping end of the conical contact head 205 into a negative pressure adsorption state by drawing air, thereby gripping the lens.

[0018] like Figure 3-5 As shown, in one embodiment, a fixing ring 301 and a limiting ring 302 are fixedly sleeved on the outer wall of the connecting arm 3. A plurality of positioning slide rods 303 are fixedly installed at one end of the limiting ring 302. A cover plate 5 is slidably sleeved on the outer wall of the plurality of positioning slide rods 303, and a fixing screw 304 is fixedly installed at one end. A fastening nut 305 is threaded on the fixing screw 304. The cover plate 5 is slidably sleeved on the fixing ring 301 and is in contact with one end of the limiting ring 302. The insertion rod 502 is slidably engaged with the mounting rod 206. A plurality of positioning holes 501 are opened at one end of the cover plate 5. The positioning holes 501 penetrate the cover plate 5. The positioning slide rods 303 are slidably engaged with the positioning holes 501. The mounting groove 101 has six openings. There are three positioning holes 501 and three positioning slide rods 303. The inner diameter of the positioning holes 501 is the same as the diameter of the positioning slide rods 303.

[0019] After the mounting plate 201 and mounting rod 206 are installed, the cover plate 5 aligns several positioning holes 501 with the positioning slide rods 303 during installation and is fitted onto the three positioning slide rods 303. At this time, several insertion rods 502 move synchronously and pass through the mounting rods 206, thereby locking the mounting rods 206. Since there are six mounting slots 101, the ratio of the number of positioning slide rods 303 to the number of positioning slide rods 303 is 2:1. The number of positioning slide rods 303 and positioning holes 501 is three, and their distribution positions are the same. Therefore, no matter what angle the cover plate 5 is rotated for installation, the insertion rods 502 can pass through the mounting rods 206, which further reduces the installation difficulty, eliminates the need for a lot of positioning and calibration time, and improves installation efficiency.

[0020] The working principle of this high-efficiency grinding and positioning device for aspherical lenses will be explained in detail below: Align the mounting rod 206 of mounting component 2 with the positioning hole 104 of the mounting groove 101 of assembly ring 1, and push the mounting plate 201 to make the iron piece 207 magnetically adhere to the permanent magnet 103 in the slot 102, completing the initial positioning of the mounting component. At this time, the transition fit between the mounting rod and the positioning hole 1 restricts radial movement. Next, put the cover plate 5 on the positioning slide rod 303 through the positioning hole 2 501 and slide it until it is in contact with the limit ring 302, so that the insertion rod 502 passes through the mounting rod 206 in the adjacent mounting groove and the end abuts against the inner wall of the assembly ring. Tighten the fastening nut 305 on the fixing screw 304 to lock the cover plate, realizing the final fixation of the mounting component. In use, finally connect the device to the rotating mechanism of the CNC machine tool through the flange 4 to ensure that the connecting arm 3 can rotate and the lens is added. The overall working time is fixed. Then, the vent pipe 202 is connected to an external negative pressure source, and the negative pressure source is activated to generate negative pressure inside the vent pipe 202, the adsorption column 203, and the conical contact head 205. Then, the aspherical lens is attached to the elastic pad of the conical contact head 205. Finally, the lens is fixed by adsorption using negative pressure. Then, the grinding equipment is started to grind the lens. During the grinding process, the negative pressure continues to adsorb, and the insertion rod 502 and the mounting rod 206 together limit the lens displacement. The elastic pad protects the lens surface. When changing the lens, the negative pressure source can be turned off and the lens can be removed. When changing to different specifications of lenses, the assembly ring 1 is rotated at a certain angle by the rotating mechanism, so that several mounting components 2 rotate clockwise, thereby selecting different types of conical contact heads 205 to grab the lens. The adjustment efficiency is high and the work efficiency is improved. When it is necessary to remove and maintain several installation components 2, the worker rotates and removes several fastening nuts 305, then moves the cover plate 5 horizontally a certain distance so that several insert rods 502 are no longer inserted into the installation rods 206. After disconnecting the vent pipe 202 from the negative pressure source, the worker grabs the vent pipe 202 and applies force so that the iron plate 207 at the bottom of the installation plate 201 gradually leaves the magnetic attraction range of the permanent magnet 103, thus enabling disassembly. The remaining installation components 2 to be disassembled will not easily fall off and be damaged when attracted by the permanent magnet 103.

[0021] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A high-efficiency polishing positioning device for aspherical lenses, comprising an assembly ring (1), characterized in that: The outer wall of the assembly ring (1) is provided with several mounting grooves (101), and a connecting arm (3) is fixedly installed inside. The inner wall of the mounting groove (101) is provided with a slot (102) and several positioning holes (104), and a mounting assembly (2) is provided. A permanent magnet (103) is fixedly installed in the slot (102). The mounting assembly (2) includes a mounting plate (201) and several mounting rods (206). One end of the mounting plate (201) is provided with a gripping component, and the other end is fixedly installed with several iron pieces (207). The gripping component includes a conical contact head (205). The conical contact head (205) can grip the lens through negative pressure. The number of mounting rods (206) corresponds to the number of positioning holes (104) and they are slidably engaged. The connecting arm (3) A fixing ring (301) and a limiting ring (302) are fixedly sleeved on the outer wall. A plurality of positioning slide rods (303) are fixedly installed on one end of the limiting ring (302). A cover plate (5) is slidably sleeved on the outer wall of the plurality of positioning slide rods (303), and a fixing screw (304) is fixedly installed on one end. A fastening nut (305) is threaded on the fixing screw (304). A plurality of insert rods (502) are fixedly installed on one end of the cover plate (5). A single insert rod (502) can penetrate two mounting rods (206) and abut against the inner wall of the assembly ring (1). The permanent magnet (103) and the iron sheet (207) are magnetically engaged and preliminarily position the mounting plate (201). The mounting rod (206) and the positioning hole (104) are transitionally engaged.

2. The high efficiency polishing and positioning device for aspherical lenses of claim 1, wherein: The gripping assembly also includes a vent pipe (202) and an adsorption column (203). The adsorption column (203) is fixedly connected to the vent pipe (202) and the conical contact head (205) and they are interconnected. The vent pipe (202) is fixedly installed on the top of the mounting plate (201). The conical contact heads (205) are of different types. The six mounting grooves (101) are evenly distributed along the circumferential direction of the outer wall of the assembly ring (1). The fixing ring (301) is fixedly connected to the limiting ring (302).

3. The high efficiency polishing and positioning device for aspherical lenses of claim 2, wherein: The gripping assembly also includes a threaded sleeve (204) and a protective cover (200). The threaded sleeve (204) is fixedly installed at one end of the vent pipe (202), and the protective cover (200) is threaded onto the threaded sleeve (204). The end face of the tapered contact head (205) is covered with an elastic pad.

4. The high efficiency polishing and positioning device for aspherical lenses of claim 1, wherein: The cover plate (5) is slidably sleeved on the fixing ring (301) and is in contact with one end of the limiting ring (302). The insertion rod (502) is slidably engaged with the mounting rod (206).

5. The high efficiency polishing and positioning device for aspherical lenses of claim 1, wherein: One end of the cover plate (5) is provided with a plurality of positioning holes (501), the positioning holes (501) penetrate the cover plate (5), the positioning slide rod (303) slides in cooperation with the positioning hole (501), and the plurality of positioning slide rods (303) and the plurality of positioning holes (501) are arranged in a circumferential array along the limiting ring (302) and the cover plate (5).

6. The high efficiency polishing and positioning device for aspherical lenses of claim 5, wherein: The mounting groove (101) has six openings, and the second positioning hole (501) and the positioning slide rod (303) each have three openings. The inner diameter of the second positioning hole (501) is the same as the diameter of the positioning slide rod (303).

7. The high efficiency polishing and positioning device for aspherical lenses of claim 1, wherein: A flange (4) is fixedly installed at one end of the connecting arm (3).

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