Mirror edge grinding equipment for aspheric lens

Abstract

The utility model provides an aspheric lens edge grinding device. The aspheric lens edge grinding device comprises a machine frame, a clamping mechanism and a grinding mechanism, wherein the clamping mechanism is arranged on the machine frame and used for clamping and fixing an aspheric lens, and the grinding mechanism is used for grinding the lens. The clamping mechanism comprises a supporting seat, a first driving mechanism, an upper moving plate and a lower moving plate, the upper moving plate and the lower moving plate are slidably mounted on the supporting seat, the supporting seat is slidably mounted on the rack and connected with the first driving mechanism, a second driving mechanism for driving the upper moving plate and the lower moving plate to move is arranged on the supporting seat, and a rotating shaft is rotatably arranged on the upper moving plate. A driving motor connected with the rotating shaft is arranged at the upper end of the upper moving plate, a first clamping head is arranged at the lower end of the upper moving plate, a supporting shaft is arranged on the lower moving plate, and a second clamping head is rotationally arranged on the supporting shaft. In actual use, the technical problem that in the prior art, when a lens is clamped, the clamping force is too large, and the lens is prone to being damaged can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lens processing equipment, in particular to a lens edge grinding device for an aspherical lens. Background Art

[0002] Lenses can be mainly divided into glass lenses, resin lenses, PC lenses, etc. according to different materials. Commonly used ones are optical lenses, sun lenses, polarized lenses, etc. Lenses can be divided into spherical lenses and aspherical lenses according to surface processing.

[0003] In the prior art, when grinding a lens, it is necessary to clamp the lens, but the lens is prone to overpressure during clamping, and the lens is prone to damage after being subjected to excessive force. The utility model with application number: CN202320846852.7 discloses a lens clamping mechanism for an edge grinder, which belongs to the field of lens processing technology. It includes a box body, on which two electric telescopic rods are symmetrically arranged, the electric telescopic rods are slidably connected to the box body, one end of the electric telescopic rods is provided with a motor, the other end of the electric telescopic rods is fixedly installed with a connecting plate, and the end of the connecting plate away from the electric telescopic rod is fixedly installed with a pressing plate, and auxiliary mechanisms are symmetrically arranged on both sides of the pressing plate. When fixing the lens, the utility model drives one end of the two electric telescopic rods to approach each other, and drives the connecting plate to drive the pressing plate and the auxiliary mechanism to a preset position, and after fixing the middle part of the lens by the pressing plate, the lens position on both sides of the pressing plate is fixed by adjusting the auxiliary mechanism, so as to achieve three-point fixing, thereby achieving the purpose of conveniently fixing lenses with different curved surfaces, solving the problem of unstable fixing when the curvature of the lens is aspherical, and affecting the processing quality.

[0004] However, in actual use, there is still a situation where the clamping force of the lens is uncontrollable. When the lens is clamped and fixed, the clamping force is easily too large to cause damage to the lens. Utility Model Content

[0005] The purpose of the utility model is to provide a lens edge grinding device for aspherical lenses, which can effectively solve the technical problem in the prior art that when the lens is clamped, the clamping force is too large and the lens is easily damaged.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A non-spherical lens edge grinding device comprises a frame, a clamping mechanism arranged on the frame for clamping and fixing the non-spherical lens, and a grinding mechanism for grinding the lens;

[0008] The clamping mechanism includes a support seat, a first driving mechanism, an upper movable plate and a lower movable plate slidably mounted on the support seat, the support seat is slidably mounted on the frame and connected to the first driving mechanism, a second driving mechanism for driving the upper and lower movable plates to move is arranged on the support seat, a rotating shaft is rotatably arranged on the upper movable plate, a driving motor connected to the rotating shaft is arranged on the upper end of the upper movable plate, a first clamping head is arranged at the lower end, a supporting shaft is arranged on the lower movable plate, and a second clamping head is rotatably arranged on the supporting shaft;

[0009] The first clamping head and the second clamping head are made of hard rubber material. A pressure sensor is installed in the first clamping head, and the pressure sensor is connected to the second driving mechanism.

[0010] Among them, the second driving mechanism includes a turntable, a first driving rod, a second driving rod and a motor. The motor is installed on a support seat. The motor output shaft is connected to the turntable. The turntable is provided with protrusions in a centrally symmetrical state. One end of the first driving rod is hinged to one of the protrusions, and the other end is hinged to the upper movable plate. One end of the second driving rod is hinged to the other protrusion, and the other end is hinged to the lower movable plate.

[0011] Furthermore, an auxiliary positioning mechanism is provided on the lower movable plate, and the auxiliary positioning mechanism is used for auxiliary positioning of the lens.

[0012] Preferably, the auxiliary positioning mechanism includes a carrying plate, a guide block and a guide column arranged on the carrying plate, the guide column passes through the lower movable plate and is slidably connected to the lower movable plate, the guide block is installed on the frame, an inclined groove is arranged on the guide block, a guide wheel is arranged at the lower end of the guide column, and the guide wheel is located in the inclined groove, when the lower movable plate moves in the horizontal direction, the carrying plate can move upward or downward under the action of the guide wheel and the inclined groove, and a placement groove matching the lens is arranged on the carrying plate.

[0013] Wherein, a guide surface connected with the placement groove is arranged on the carrying plate.

[0014] Furthermore, the grinding mechanism includes a mounting plate and a first grinding component, the first grinding component includes a grinding disc, a first motor, an adjusting rod, a support plate and a spring, the mounting plate is fixedly mounted on the frame, one end of the support plate is hinged to the mounting plate, and the other end is suspended, the first motor is mounted on the support plate and connected to the grinding disc, a clearance groove is provided on the mounting plate, the adjusting rod is hinged to the support plate after passing through the clearance groove, an adjusting nut is provided on the adjusting rod, one end of the spring is connected to the support plate, and the other end is connected to the mounting plate.

[0015] The grinding mechanism further includes a second grinding assembly, and the first grinding assembly and the second grinding assembly are symmetrically arranged on the mounting plate.

[0016] Wherein, the adjusting nut is an adjusting bolt with a hand wheel.

[0017] Furthermore, the first driving mechanism includes a telescopic rod, a movable end of the telescopic rod is connected to the support seat, and a fixed end is fixedly mounted on the frame.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] In actual use, the utility model drives the support seat to move on the frame through the first driving mechanism, so that the aspherical lens can approach or move away from the grinding mechanism, thereby realizing the edge grinding of the lens; the upper movable plate and the lower movable plate are driven to move through the second driving mechanism, so that the first clamping head and the second clamping head can approach or move away from each other, thereby realizing the clamping of the lens. In actual use, the first clamping head and the second clamping head are provided with matching surfaces that match the lens, so that the first clamping head and the second clamping head can have a larger contact area with the lens, thereby improving the anti-breakage property of the lens. at the same time, since the first clamping head and the second clamping head are made of hard rubber material, and a pressure sensor is installed in the first clamping head, the pressure sensor is connected to the second driving mechanism, when the lens is clamped, the first clamping head and the second clamping head will be deformed, and a buffer is formed during clamping. At the same time, the arranged pressure sensor can realize real-time detection of the clamping force of the lens. When the preset clamping pressure is reached, the second driving mechanism can stop driving the upper moving plate and the lower moving plate to move, so as to clamp and fix the lens, and can effectively avoid the situation where the lens is damaged due to excessive clamping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a schematic diagram of the connection relationship between the turntable and the first and second drive rods of the utility model.

[0023] Figure 3 For this utility model Figure 1 A partial enlarged schematic diagram in the middle.

[0024] Reference numerals:

[0025] 101-frame, 102-clamping mechanism, 103-grinding mechanism, 104-support seat, 105-first driving mechanism, 106-upper moving plate, 107-lower moving plate, 108-rotating shaft, 109-driving motor, 110-first clamping head, 111-supporting shaft, 112-second clamping head, 113-rotating disk, 114-first driving rod, 115-second driving rod, 116-motor, 117-cam , 118-auxiliary positioning mechanism, 119-carrying plate, 120-guide block, 121-guide column, 122-bevel groove, 123-guide wheel, 124-handwheel, 125-mounting plate, 126-first grinding assembly, 127-grinding plate, 128-first motor, 129-adjusting rod, 130-support plate, 131-spring, 132-adjusting nut, 133-allowing groove, 134-second grinding assembly. DETAILED DESCRIPTION

[0026] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0027] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0029] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0030] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0032] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0033] Embodiment 1

[0034] See also Figure 1-Figure 3 This embodiment discloses a lens edge grinding device, specifically a non-spherical lens edge grinding device, including a frame 101, a clamping mechanism 102 disposed on the frame 101 for clamping and fixing the non-spherical lens, and a grinding mechanism 103 for grinding the lens;

[0035] The clamping mechanism 102 includes a support seat 104, a first driving mechanism 105, an upper movable plate 106 and a lower movable plate 107 slidably mounted on the support seat 104, the support seat 104 is slidably mounted on the frame 101 and connected to the first driving mechanism 105, a second driving mechanism for driving the upper and lower movable plates 107 to move is provided on the support seat 104, a rotating shaft 108 is rotatably provided on the upper movable plate 106, a driving motor 109 connected to the rotating shaft 108 is provided at the upper end of the upper movable plate 106, and a first clamping head 110 is provided at the lower end, a support shaft 111 is provided on the lower movable plate 107, and a second clamping head 112 is rotatably provided on the support shaft 111;

[0036] The first clamping head 110 and the second clamping head are made of hard rubber material. A pressure sensor is installed in the first clamping head 110, and the pressure sensor is connected to the second driving mechanism.

[0037] In actual use, the utility model drives the support seat 104 to move on the frame 101 through the first driving mechanism 105, so that the aspheric lens can approach or move away from the grinding mechanism 103, thereby realizing the edge grinding of the lens; the upper moving plate 106 and the lower moving plate 107 are driven to move through the second driving mechanism, so that the first clamping head and the second clamping head can approach or move away from each other, thereby realizing the clamping of the lens. In actual use, the first clamping head and the second clamping head are provided with matching surfaces that match the lens, so that the first clamping head and the second clamping head can have a larger contact area with the lens, thereby improving the lens anti-slip Crushing effect; at the same time, since the first clamping head and the second clamping head are made of hard rubber material, and a pressure sensor is installed in the first clamping head 110, the pressure sensor is connected to the second driving mechanism, when the lens is clamped, the first clamping head 110 and the second clamping head 112 will be deformed, and a buffer will be formed during clamping. At the same time, the set pressure sensor can realize real-time detection of the clamping force of the lens. When the preset clamping pressure is reached, the second driving mechanism can stop driving the upper moving plate 106 and the lower moving plate 107 to move, thereby clamping and fixing the lens, which can effectively avoid the situation where the lens is damaged due to excessive clamping force.

[0038] Among them, the second driving mechanism includes a turntable 113, a first driving rod 114, a second driving rod 115 and a motor 116. The motor 116 is installed on the support base 104. The output shaft of the motor 116 is connected to the turntable 113. The turntable 113 is provided with protrusions 117 in a centrally symmetrical state. One end of the first driving rod 114 is hinged to one of the protrusions 117, and the other end is hinged to the upper movable plate 106. One end of the second driving rod 115 is hinged to the other protrusion 117, and the other end is hinged to the lower movable plate 107.

[0039] In actual use, the motor 116 is a torque motor, which drives the turntable 113 to rotate, and then drives the upper moving plate 106 and the lower moving plate 107 to move on the support base 104 through the hinged first drive rod 114 and the second drive rod 115. The upper moving plate 106 and the lower moving plate 107 are slidably installed on the support base 104 through sliders and slide rails.

[0040] Wherein, an auxiliary positioning mechanism 118 is disposed on the lower movable plate 107, and the auxiliary positioning mechanism 118 is used for auxiliary positioning of the lens.

[0041] Furthermore, the auxiliary positioning mechanism 118 includes a carrying plate 119, a guide block 120 and a guide column 121 arranged on the carrying plate 119, the guide column 121 passes through the lower movable plate 107 and is slidably connected to the lower movable plate 107, the guide block 120 is installed on the frame 101, an inclined groove 122 is arranged on the guide block 120, a guide wheel 123 is arranged at the lower end of the guide column 121, and the guide wheel 123 is located in the inclined groove 122. When the lower movable plate moves in the horizontal direction, under the action of the guide wheel 123 and the inclined groove 122, the carrying plate 119 can move upward or downward, and a placement groove matching the lens is arranged on the carrying plate 119.

[0042] This can assist in positioning the lens when it is placed. After the lens is clamped and fixed, when the first driving mechanism 105 drives the mounting seat to move, the carrier plate 119 will automatically move downward under the action of the inclined groove 122 on the guide block 120 to expose the lens for easy grinding of the lens.

[0043] The carrier plate 119 is provided with a guide surface connected to the placement groove, and the provided guide surface facilitates the placement of the lens on the carrier plate 119 .

[0044] Among them, the grinding mechanism 103 includes a mounting plate 125 and a first grinding assembly 126, the first grinding assembly 126 includes a grinding disc 127, a first motor 128, an adjusting rod 129, a support plate 130 and a spring 131, the mounting plate 125 is fixedly installed on the frame 101, one end of the support plate 130 is hinged to the mounting plate 125, and the other end is suspended, the first motor 128 is installed on the support plate 130 and connected to the grinding disc 127, a clearance groove 133 is provided on the mounting plate 125, the adjusting rod 129 is hinged to the support plate 130 after passing through the clearance groove 133, an adjusting nut 132 is provided on the adjusting rod 129, one end of the spring 131 is connected to the support plate 130, and the other end is connected to the mounting plate 125.

[0045] In actual use, the angle of the support plate 130 can be adjusted as needed to adjust the edge grinding angle of the lens. At the same time, under the action of the spring 131, a buffer can be formed to avoid hard contact between the lens and the grinding disk 127 and avoid damage to the lens.

[0046] In actual use, the adjusting nut 132 is an adjusting bolt with a hand wheel 124, which improves the convenience during adjustment.

[0047] In actual use, the grinding mechanism 103 further includes a second grinding assembly 134, and the first grinding assembly 126 and the second grinding assembly 134 are symmetrically arranged on the mounting plate 125. The first grinding assembly 126 and the second grinding assembly 134 have the same structure.

[0048] This allows the upper and lower edges of the lens to be ground.

[0049] In this example, the first driving mechanism 105 includes a telescopic rod, a movable end of the telescopic rod is connected to the support base 104 , and a fixed end is fixedly mounted on the frame 101 .

[0050] It should be noted that the hinges involved in the present application can all be implemented by means of pins, and their specific mechanisms can be those in the prior art, which will not be described in detail here.

[0051] In some embodiments, the mounting plate 125 is slidably mounted on the frame 101, and a first telescopic rod is mounted on the frame 101, the first telescopic rod is connected to the mounting plate 125, and the first telescopic rod is used to drive the mounting plate 125 to move on the frame 101, thereby achieving adjustment of the height of the mounting plate 125. In actual use, the heights of the first grinding assembly 126 and the second grinding assembly 134 can be adjusted as needed to better achieve the grinding of the lens.

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

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for polishing the edge of an aspherical lens, characterized in that: It includes a frame, a clamping mechanism arranged on the frame for clamping and fixing the aspheric lens, and a grinding mechanism for grinding the lens; The clamping mechanism includes a support seat, a first driving mechanism, an upper movable plate and a lower movable plate slidably mounted on the support seat, the support seat is slidably mounted on the frame and connected to the first driving mechanism, a second driving mechanism for driving the upper and lower movable plates to move is arranged on the support seat, a rotating shaft is rotatably arranged on the upper movable plate, a driving motor connected to the rotating shaft is arranged on the upper end of the upper movable plate, a first clamping head is arranged at the lower end, a supporting shaft is arranged on the lower movable plate, and a second clamping head is rotatably arranged on the supporting shaft; The first clamping head and the second clamping head are made of hard rubber material. A pressure sensor is installed in the first clamping head, and the pressure sensor is connected to the second driving mechanism.

2. The aspherical lens edge grinding device according to claim 1, characterized in that: The second driving mechanism includes a turntable, a first driving rod, a second driving rod and a motor. The motor is installed on a support seat. The motor output shaft is connected to the turntable. The turntable is provided with protrusions in a centrally symmetrical state. One end of the first driving rod is hinged to one of the protrusions, and the other end is hinged to the upper movable plate. One end of the second driving rod is hinged to the other protrusion, and the other end is hinged to the lower movable plate.

3. The aspherical lens edge grinding device according to claim 1, characterized in that: An auxiliary positioning mechanism is arranged on the lower movable plate, and the auxiliary positioning mechanism is used for auxiliary positioning of the lens.

4. The aspherical lens edge grinding device according to claim 3, characterized in that: The auxiliary positioning mechanism includes a carrying plate, a guide block and a guide column arranged on the carrying plate, the guide column passes through the lower moving plate and is slidably connected to the lower moving plate, the guide block is installed on the frame, an inclined groove is arranged on the guide block, a guide wheel is arranged at the lower end of the guide column, and the guide wheel is located in the inclined groove, when the lower moving plate moves in the horizontal direction, the carrying plate can move upward or downward under the action of the guide wheel and the inclined groove, and a placement groove matching the lens is arranged on the carrying plate.

5. The aspherical lens edge grinding device according to claim 4, characterized in that: The carrying plate is provided with a guide surface connected with the placement groove.

6. The aspherical lens edge grinding device according to any one of claims 1 to 5, characterized in that: The grinding mechanism includes a mounting plate and a first grinding component. The first grinding component includes a grinding disc, a first motor, an adjusting rod, a support plate and a spring. The mounting plate is fixedly mounted on the frame. One end of the support plate is hinged to the mounting plate, and the other end is suspended. The first motor is mounted on the support plate and connected to the grinding disc. A clearance groove is provided on the mounting plate. The adjusting rod is hinged to the support plate after passing through the clearance groove. An adjusting nut is provided on the adjusting rod. One end of the spring is connected to the support plate, and the other end is connected to the mounting plate.

7. The aspherical lens edge grinding device according to claim 6, characterized in that: The grinding mechanism also includes a second grinding assembly, and the first grinding assembly and the second grinding assembly are symmetrically arranged on the mounting plate.

8. The aspherical lens edge grinding device according to claim 6, characterized in that: The adjusting nut is an adjusting bolt with a handwheel.

9. The aspherical lens edge grinding device according to claim 1, characterized in that: The first driving mechanism comprises a telescopic rod, a movable end of the telescopic rod is connected to the supporting seat, and a fixed end is fixedly mounted on the frame.

Images