Lens edge cutting device and method

Abstract

According to the lens edge cutting device and method, a plurality of fixing through grooves are formed in a lens fixing plate, in cooperation with the design of a turnover base capable of being turned over, a plurality of lenses are allowed to be clamped at a time, angle conversion is completed, seamless switching machining of the edges of the upper sides and the lower sides of the lenses is achieved, secondary clamping is not needed, repeated positioning errors are eliminated, and the clamping frequency is reduced; the batch processing efficiency is improved; the supporting base and the locking assembly cooperate to enable the lens fixing plate to keep rigid supporting after horizontal overturning, displacement deviation caused by machining vibration is avoided, and machining stability is guaranteed. Through the design of the detachable and replaceable lens fixing plates, a plurality of lens fixing plates can be arranged firstly, the other lens fixing plate can clamp a to-be-processed lens while the lens is processed, and then the lens fixing plate can be directly replaced after the lens is processed, so that the processing efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lens processing, and particularly relates to a lens edge cutting device and an edge cutting method. Background Art

[0002] Generally, for optical processing techniques such as lens edge cutting, industrial wax is usually used to bond the lens and graphite into one body for single-piece processing; or multiple lenses are bonded to graphite or other materials with wax or asphalt, and then bonded to a large plate, and then edge cutting processing is carried out. Finally, processes such as unmounting and cleaning of the lens workpiece are carried out.

[0003] With the wide application of optical lenses in fields such as glasses, cameras, and medical devices, the requirements for the edge processing accuracy and efficiency of lenses are increasing day by day. Traditional lens edge cutting devices usually adopt a single-station fixed processing mode, and the lenses need to be clamped and positioned multiple times, resulting in low processing efficiency and easy generation of cumulative errors. Summary of the Invention

[0004] The present invention aims to solve at least one of the problems existing in the related art to a certain extent. For this purpose, the present invention provides a lens edge cutting device and an edge cutting method.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A lens edge cutting device includes an edge cutting and grinding mechanism and a moving mechanism capable of driving the edge cutting and grinding mechanism to move along the XYZ three axes. A cutting edge workbench is arranged below the edge cutting and grinding mechanism. A center seat is arranged on the cutting edge workbench. A flipping seat capable of flipping left and right is arranged on the center seat. A lens fixing plate is detachably installed on the flipping seat. A plurality of fixing through grooves for placing lenses are arranged on the lens fixing plate. Support seats are arranged on both the left and right sides of the center seat on the cutting edge workbench. The support seats are used to support the lens fixing plate to keep the lens fixing plate in a horizontal state. A locking component for locking the lens fixing plate to the support seat is also arranged on the lens fixing plate.

[0007] In some embodiments, a plug-in board is arranged on one side of the lens fixing plate. An insertion port is arranged on the flipping seat. The plug-in board can be inserted into the insertion port. First bolts for locking the plug-in board are also arranged on both sides of the flipping seat.

[0008] In some embodiments, the locking component includes four support columns arranged at the four corners on the end face of the support seat. Threaded holes are arranged on the end face of the support column. Four through holes corresponding to the threaded holes are arranged on the lens fixing plate. A second bolt is also included. The second bolt passes through the through hole and is threadedly connected to the threaded hole.

[0009] In some embodiments, a lens support boss for supporting the lens is provided at the center of the support base.

[0010] In some embodiments, the moving mechanism includes an X-axis linear module, a Y-axis linear module, and a Z-axis linear module. The Y-axis linear module is disposed on the sliding table of the X-axis linear module. A connecting frame is provided on the sliding table of the Y-axis linear module. The Z-axis linear module is disposed on the connecting frame, and the edge trimming and grinding mechanism is disposed on the sliding table of the Z-axis linear module.

[0011] In some embodiments, the connecting frame includes a vertical rod disposed on the sliding table of the Y-axis linear module. A horizontal rod extending forward is provided at the upper end of the vertical rod. The Z-axis linear module is disposed at the front end of the horizontal rod.

[0012] In some embodiments, the edge trimming and grinding mechanism includes a motor mounting base disposed on the sliding table of the Z-axis linear module. A motor is provided on the motor mounting base. The output shaft of the motor extends downward and is provided with a grinding stone.

[0013] The present invention also provides a method for trimming the edges of a lens, which uses the above-mentioned lens edge trimming device. The method includes the following steps:

[0014] Step A: Apply industrial wax to the fixed through groove, and then place the lens to be trimmed into the fixed through groove.

[0015] Step B: Place the lens fixing plate in a heating device to heat it, so that the industrial wax in the fixed through groove adheres to the lens to be trimmed.

[0016] Step C: Install the lens fixing plate on the flipping seat, and drive the lens fixing plate to flip and abut against the support base through the flipping seat, so that the lens fixing plate is kept in a horizontal state, and lock the lens fixing plate through the locking assembly.

[0017] Step D: The edge trimming and grinding mechanism trims the upper side of the lens by moving through the moving mechanism.

[0018] Step E: After the upper side edge trimming of the lens is completed, drive the lens fixing plate to flip 180° through the flipping seat and abut against the support base on the other side, and then lock the lens fixing plate through the locking assembly.

[0019] Step F: The edge trimming and grinding mechanism trims the other side of the lens by moving through the moving mechanism.

[0020] Step G: Disassemble the lens fixing plate on the flipping seat, place the lens fixing plate in a heating device to heat it, and then take out the lenses cut on both sides from the fixed through groove.

[0021] In some embodiments, before step A, a protective paint is sprayed on the surface of the lens to be trimmed.

[0022] In some embodiments, in step B, a flat glass is used to press on the lens in the fixed through groove, so that all the lenses are at the same position height.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. By arranging a plurality of fixed through grooves on the lens fixing plate and cooperating with the design of the flip seat that can be flipped, it allows multiple lenses to be clamped at one time and the angle conversion to be completed, realizing seamless switching processing of the upper and lower edges of the lens, without secondary clamping, eliminating repeated positioning errors, reducing the number of clampings, and improving the batch processing efficiency;

[0025] 2. The support seat and the locking component cooperate to keep the lens fixing plate rigidly supported after horizontal flipping, avoiding displacement deviation caused by processing vibration and ensuring processing stability;

[0026] 3. Through the design of the lens fixing plate that can be disassembled and replaced, multiple lens fixing plates can be set first. While the lens is being processed, another lens fixing plate can be used to clamp the lens to be processed. Then, after the lens processing is completed, the lens fixing plate can be directly replaced, improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0028] Figure 2 is a partial exploded schematic diagram of the present invention;

[0029] Figure 3 is a three-dimensional schematic diagram when the lens fixing plate of the present invention is fixed to the right support seat;

[0030] Figure 4 is a front view schematic diagram when the lens fixing plate of the present invention is fixed to the right support seat;

[0031] Figure 5 is a front view schematic diagram when the lens fixing plate of the present invention is fixed to the left support seat. DETAILED DESCRIPTION OF THE INVENTION

[0032] The following specific implementation content provides various different embodiments or examples for implementing the present invention. Of course, these are only embodiments or examples and are not intended to be restrictive. Additionally, repeated reference numerals may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the present invention and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0033] Such as Figures 1 - 5A lens edge-cutting device shown in the figure includes an edge-cutting and grinding mechanism 1 and a moving mechanism 2 that can drive the edge-cutting and grinding mechanism 1 to move along the XYZ three axes. Thus, by driving the edge-cutting and grinding mechanism 1 through the moving mechanism 2 that moves along the XYZ three axes, the omnidirectional path control of the lens 10 in the three-dimensional space can be realized, ensuring the high-precision forming of the edge-cutting contour.

[0034] Further, an edge-cutting workbench 3 is arranged below the edge-cutting and grinding mechanism 1. A center seat 4 is arranged on the edge-cutting workbench 3. A flipping seat 5 that can be flipped left and right is arranged on the center seat 4. A lens fixing plate 6 is detachably installed on the flipping seat 5. A number of fixing through grooves 7 for placing the lens 10 are arranged on the lens fixing plate 6. Support seats 8 are arranged on both the left and right sides of the center seat 4 on the edge-cutting workbench 3. The support seats 8 are used to support the lens fixing plate 6 to keep the lens fixing plate 6 in a horizontal state. A locking component for locking the lens fixing plate 6 to the support seats 8 is also arranged on the lens fixing plate 6.

[0035] According to the above structure, the lens fixing plate 6 is provided with a plurality of fixing through grooves 7. Combined with the design of the flippable flipping seat 5, it allows multiple lenses 10 to be clamped at one time and the angle conversion to be completed, realizing the seamless switching processing of the upper and lower edges of the lens 10, without secondary clamping, eliminating the repeated positioning error, reducing the clamping times, and improving the batch processing efficiency.

[0036] The support seats 8 and the locking component cooperate to keep the lens fixing plate 6 in rigid support after horizontal flipping, avoiding the displacement deviation caused by the processing vibration and ensuring the processing stability.

[0037] In addition, through the design of the detachable and replaceable lens fixing plate 6, a plurality of lens fixing plates 6 can be set first. While the lens is being processed, another lens fixing plate 6 can be used to clamp the lens 10 to be processed. Then, after the lens processing is completed, the lens fixing plate 6 can be directly replaced, further improving the batch processing efficiency.

[0038] At the same time, the design of the detachable lens fixing plate 6 can replace and adapt to different specifications of lenses, enhancing the versatility of the equipment.

[0039] See Figures 2 - 3 As shown in the figure, a plug-in board 21 is arranged on one side of the lens fixing plate 6. An insertion port 22 is arranged on the flipping seat 5. The plug-in board 21 can be inserted into the insertion port 22. First bolts 23 for locking the plug-in board 21 are also arranged on both sides of the flipping seat 5; align the plug-in board 21 of the lens fixing plate 6 with the insertion port 22 of the flipping seat 5 and insert it, and then tighten the first bolts 23 on both sides to fix the plug-in board 21 to prevent displacement during processing.

[0040] Thus, through the design of the plug-in board 21 and the plug-in interface 22, quick disassembly and assembly are realized, and the downtime for replacing the lens fixing plate 6 is shortened.

[0041] See Figures 2 - 5 As shown, the locking assembly includes four support columns 31 provided at the end face of the support base 8 and located at the four corners. A threaded hole 32 is provided at the end face of the support column 31. Four through holes 33 corresponding to the threaded holes 32 are provided on the lens fixing plate 6. It also includes a second bolt 34. The second bolt 34 passes through the through hole 33 and is threadedly connected to the threaded hole 32. First, the lens fixing plate 6 is supported by the four support columns 31 to keep the lens fixing plate 6 in a horizontal state. Then, the second bolt 34 is passed through the through hole 33 and screwed into the threaded hole 32 to lock the four corners of the lens fixing plate 6.

[0042] Furthermore, a lens support boss 41 for supporting the lens 10 is provided at the center of the support base 8. When the lens fixing plate 6 is flipped, the lower edge of the lens 10 abuts against the support boss 41, and central support is provided by the lens support boss 41 to prevent the lens from sagging due to gravity and causing processing deformation.

[0043] In addition, it should be noted that the heights of the lens support bosses 41 on the left and right sides are different. First, when the lens 10 is fixed in the fixed through groove 7, the upper and lower edges of the lens 10 are both exposed, and the heights of the exposed parts are the same. Thus, when trimming the first side edge of the lens 10, since the other side edge has not been processed yet, the exposed part is higher. Therefore, in order to allow it to abut against the lens support boss 41, the protruding height of the corresponding lens support boss 41 is lower (see Figure 4 shown); after the first side edge is processed, the lens fixing plate 6 is flipped 180 degrees to the left. At this time, since the first side edge of the lens 10 has been trimmed, the protruding height is lower. Furthermore, the protruding height of the corresponding lens support boss 41 is correspondingly increased so that the trimmed part of the lens 10 completely abuts and fits against the lens support boss 41 (as Figure 5 shown); central support is provided by the lens support boss 41 to prevent the lens from sagging due to gravity and causing processing deformation.

[0044] See Figure 1 As shown, the moving mechanism 2 includes an X-axis linear module 51, a Y-axis linear module 52, and a Z-axis linear module 53. The Y-axis linear module 52 is provided on the sliding table of the X-axis linear module 51. A connecting frame 54 is provided on the sliding table of the Y-axis linear module 52. The Z-axis linear module 53 is provided on the connecting frame 54. The trimming and grinding mechanism 1 is provided on the sliding table of the Z-axis linear module 53.

[0045] Further, the connecting frame 54 includes a vertical rod 61 provided on the sliding table of the Y-axis linear module 52. A horizontal rod 62 extending forward is provided at the upper end of the vertical rod 61, and the Z-axis linear module 53 is provided at the front end of the horizontal rod 62. Since the edge cutting and grinding mechanism 1 needs to spray liquids such as cutting fluid during the cutting and grinding work, in order to prevent the liquid from flowing directly onto the X-axis linear module 51 and the Y-axis linear module 52, through the setting of the connecting frame 54, the edge cutting and grinding mechanism 1 is extended forward and is not directly provided directly below the X-axis linear module 51 and the Y-axis linear module 52, thereby being able to prevent the liquid from flowing onto the X-axis linear module 51 and the Y-axis linear module 52 and improving the service life of the equipment.

[0046] Further, the edge cutting and grinding mechanism 1 includes a motor mounting seat 71 provided on the sliding table of the Z-axis linear module 53. A motor 72 is provided on the motor mounting seat 71. The output shaft of the motor 72 extends downward and is installed with a grinding stone 73. Different grinding materials can be selected according to the lens material.

[0047] Of course, the edge cutting and grinding mechanism 1 is a conventional existing design and will not be elaborated in detail here.

[0048] The present invention also provides a lens edge cutting method, which adopts the above-mentioned lens edge cutting device, and includes the following steps:

[0049] Step A: Apply industrial wax to the fixed through groove 7, and then place the lens 10 to be edge cut into the fixed through groove 7.

[0050] Step B: Place the lens fixing plate 6 in a heating device to heat it, so that the industrial wax in the fixed through groove 7 adheres to the lens 10 to be edge cut.

[0051] Step C: Install the lens fixing plate 6 on the flipping seat 5, drive the lens fixing plate 6 to flip by the flipping seat 5 and abut against the support seat 8, so that the lens fixing plate 6 is kept in a horizontal state, and lock the lens fixing plate 6 through the locking component.

[0052] Step D: The edge cutting and grinding mechanism 1 performs edge cutting on the upper side of the lens 10 through the movement of the moving mechanism 2.

[0053] Step E: After the upper side edge cutting of the lens 10 is completed, drive the lens fixing plate 6 to flip 180° by the flipping seat 5 and abut against the support seat 8 on the other side, and then lock the lens fixing plate 6 through the locking component.

[0054] Step F: The edge cutting and grinding mechanism 1 performs edge cutting on the other side of the lens 10 through the movement of the moving mechanism 2.

[0055] Step G: Remove the lens fixing plate 6 from the flipping seat 5, place the lens fixing plate 6 in a heating device for heating, and then take out the cut lenses 10 on both sides from the fixing through slots 7.

[0056] According to the above lens edge cutting method, when fixing the lens 10 to be processed, industrial wax bonding is used to achieve non-destructive fixing, avoiding mechanical clamping damage to the lens, especially suitable for ultra-thin lenses; after single fixing, the flipping seat is flipped 180° and locked with the support seat 8 and the locking component to achieve seamless switching processing of the upper and lower edges of the lens, without secondary clamping.

[0057] In addition, the industrial wax is quickly melted and solidified in the heating device. Combining with the detachable design of the lens fixing plate 6, batch bonding and rapid demoulding of the lens are realized, and the single batch processing time is shortened by more than 40%.

[0058] Furthermore, before step A, a protective paint is sprayed on the surface of the lens 10 to be edge-cut. The protective paint forms a temporary protective layer to prevent the edge-cut debris from scratching the optical surface of the lens.

[0059] A soluble resin protective paint is used. After spraying, it is left standing for 5 minutes to form a film, and after processing, it is soaked in deionized water for 10 minutes to remove the protective layer.

[0060] Furthermore, in step B, a flat glass is pressed on the lens 10 in the fixing through slot 7 to make all the lenses 10 at the same position height, and the pressure of the flat glass is used to ensure that all the lenses have the same height.

[0061] Combined with the drawings and the above display and description of the basic principles, main features and advantages of the present invention, those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lens edging device, characterized in that: It includes a trimming and grinding mechanism (1) and a moving mechanism (2) capable of driving the trimming and grinding mechanism (1) to move along the XYZ three axes. A trimming workbench (3) is arranged below the trimming and grinding mechanism (1). A central seat (4) is arranged on the trimming workbench (3). A flipping seat (5) capable of flipping left and right is arranged on the central seat (4). A lens fixing plate (6) is detachably installed on the flipping seat (5). A plurality of fixing through grooves (7) for placing lenses (10) are arranged on the lens fixing plate (6). Support seats (8) are arranged on both the left and right sides of the central seat (4) on the trimming workbench (3). The support seats (8) are used to support the lens fixing plate (6) to keep the lens fixing plate (6) in a horizontal state. A locking component for locking the lens fixing plate (6) to the support seats (8) is also arranged on the lens fixing plate (6).

2. The lens edge cutting device according to claim 1, characterized in that: A plug-in board (21) is arranged on one side of the lens fixing plate (6). An insertion port (22) is arranged on the flipping seat (5). The plug-in board (21) can be inserted into the insertion port (22). First bolts (23) for locking the plug-in board (21) are also arranged on both sides of the flipping seat (5).

3. The lens edge cutting device according to claim 1, characterized in that: The locking component includes four support columns (31) arranged at the four corners on the end face of the support seat (8). A threaded hole (32) is arranged on the end face of the support column (31). Four through holes (33) corresponding to the threaded holes (32) are arranged on the lens fixing plate (6). It also includes a second bolt (34). The second bolt (34) passes through the through hole (33) and is threadedly connected to the threaded hole (32).

4. A lens edge cutting device according to claim 1, characterized in that: A lens support boss (41) for supporting the lens (10) is arranged at the center of the support seat (8).

5. A lens edge cutting device according to claim 1, characterized in that: The moving mechanism (2) includes an X-axis linear module (51), a Y-axis linear module (52), and a Z-axis linear module (53). The Y-axis linear module (52) is arranged on the sliding table of the X-axis linear module (51). A connecting frame (54) is arranged on the sliding table of the Y-axis linear module (52). The Z-axis linear module (53) is arranged on the connecting frame (54). The trimming and grinding mechanism (1) is arranged on the sliding table of the Z-axis linear module (53).

6. The lens edge cutting device according to claim 5, wherein: The connecting frame (54) includes a vertical rod (61) arranged on the sliding table of the Y-axis linear module (52). A horizontal rod (62) extending forward is arranged at the upper end of the vertical rod (61). The Z-axis linear module (53) is arranged at the front end of the horizontal rod (62).

7. A lens edge cutting device according to claim 5, characterized in that: The trimming and grinding mechanism (1) includes a motor mounting seat (71) arranged on the sliding table of the Z-axis linear module (53). A motor (72) is arranged on the motor mounting seat (71). The output shaft of the motor (72) extends downward and is installed with a grinding stone (73).

8. A lens edge cutting method, characterized in that: Using the lens trimming device according to any one of claims 1-7, wherein the following steps are included: Step A: Apply industrial wax into the fixed through groove (7), and then place the lens (10) to be edge-cut into the fixed through groove (7); Step B: Place the lens fixing plate (6) in a heating device to heat it, so that the industrial wax in the fixed through groove (7) adheres to the lens (10) to be edge-cut; Step C: Install the lens fixing plate (6) on the flipping seat (5), drive the lens fixing plate (6) to flip and abut against the support seat (8) through the flipping seat (5), keep the lens fixing plate (6) in a horizontal state, and lock the lens fixing plate (6) through the locking assembly; Step D: The edge-cutting and grinding mechanism (1) cuts the upper side of the lens (10) by moving the moving mechanism (2); Step E: After the upper side edge-cutting of the lens (10) is completed, drive the lens fixing plate (6) to flip 180° through the flipping seat (5) and abut against the support seat (8) on the other side, and then lock the lens fixing plate (6) through the locking assembly; Step F: The edge-cutting and grinding mechanism (1) cuts the other side of the lens (10) by moving the moving mechanism (2); Step G: Dismantle the lens fixing plate (6) on the flipping seat (5), place the lens fixing plate (6) in a heating device to heat it, and then take out the lenses (10) with both sides cut from the fixed through groove (7).

9. A lens edge cutting method according to claim 8, characterized in that: Before step A, spray protective paint on the surface of the lens (10) to be edge-cut.

10. A method for trimming a lens according to claim 8, characterized in that: In step B, use a flat glass to press on the lens (10) in the fixed through groove (7) to make all the lenses (10) at the same position height.

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