Vertical lens edge grinding machine with double edge grinding devices and feeding method of vertical lens edge grinding machine

Abstract

The invention belongs to the technical field of lens machining equipment, and particularly relates to a vertical lens edge grinding machine with double edge grinding devices and a feeding method of the vertical lens edge grinding machine. Comprising a machine frame, a material taking station, a correcting mechanism, a first transferring device, a second transferring device and an edge grinding station, the material taking station, the correcting mechanism, the first transferring device, the second transferring device and the edge grinding station are arranged on the machine frame, and the edge grinding station is provided with clamping devices which are oppositely arranged in the vertical direction to clamp a lens, a first grinding assembly and a second grinding assembly, the first transfer device is configured to transfer the lens back and forth between the material taking station and the correction mechanism, and the second transfer device is configured to transfer the lens back and forth between the correction mechanism and the clamping device. The first grinding assembly and the second grinding assembly are arranged on the two sides of the clamping device, so that the equipment can achieve double grinding efficiency, the machining period of a single lens is greatly shortened, and the productivity is remarkably improved.

Description

TECHNICAL FIELD The application belongs to the technical field of lens processing equipment, and particularly relates to a vertical lens edging machine with a double-edging device and a feeding method thereof. BACKGROUND With the development of the glasses industry, the efficiency and precision requirements for lens edging processing are higher and higher. Traditional vertical lens edging machines usually adopt a single grinding head structure, that is, one clamping station corresponds to one grinding assembly. Although the vertical structure utilizes gravity to assist positioning, which is beneficial to the clamping stability of large-size lenses, the processing efficiency of the single grinding head is low, especially when multiple processes such as rough grinding, fine grinding and up-down chamfering are required, which takes a long time. In order to improve the efficiency, double grinding heads can be arranged on both sides of a station. However, this layout results in extremely narrow space of the edging station. If a traditional single mechanical hand directly sends the lens from the material taking place to the edging station, the mechanical hand has a long stroke, and mechanical interference is prone to occur in the narrow space surrounded by the double grinding heads. In addition, the traditional one-take-one-put feeding method requires the mechanical hand to grab the processed product after taking it out and then put the product to be processed, which causes the edging machine to be in an idle waiting state during the material changing, seriously affecting the production rhythm. SUMMARY The purpose of the present application is to provide a vertical lens edging machine with a double-edging device and a feeding method thereof. Through segmented relay transfer and double-nozzle rapid exchange structure, the space interference problem is solved and the material changing time is shortened while realizing efficient processing of double grinding heads.

[0001] The application is implemented by the following technical solutions: A vertical lens edging machine with a double-edging device, comprising a rack, a material taking station, a correction mechanism, a first transfer device, a second transfer device and an edging station arranged on the rack, a clamping device arranged on the edging station to clamp the lens along the vertical direction, and a first grinding assembly and a second grinding assembly for grinding the lens, the first transfer device is configured to transfer the lens back and forth between the material taking station and the correction mechanism, and the second transfer device is configured to transfer the lens back and forth between the correction mechanism and the clamping device.

[0002] The vertical lens edging machine with a double-edging device as described above, the clamping device comprises an upper clamp and a lower clamp coaxially arranged along the vertical direction, the rack is provided with a first guide channel and a second guide channel, the first guide channel and the second guide channel coaxially extend along the vertical direction; The upper clamp is connected with a first rotary driving mechanism penetrating in the first guide channel, the lower clamp is connected with a second rotary driving mechanism penetrating in the second guide channel, and the upper clamp can move along the vertical direction under the driving of the clamping driving mechanism to clamp or release the lens in cooperation with the lower clamp.

[0003] A vertical lens edging machine with double edging device as described above, the first edging assembly and the second edging assembly each comprises an edging disc, an edging driving mechanism, an edging horizontal moving mechanism and an edging vertical moving mechanism; The edging vertical moving mechanism comprises an edging vertical moving driving member, an edging vertical moving guide rail extending vertically on the machine frame, and an edging vertical moving sliding seat sliding on the edging vertical moving guide rail, the edging vertical moving driving member is used to drive the edging vertical moving sliding seat to move vertically; The edging horizontal moving mechanism comprises an edging horizontal moving driving member, an edging horizontal moving guide rail extending horizontally on the edging vertical moving sliding seat, and an edging horizontal moving sliding seat sliding on the edging horizontal moving guide rail, the edging horizontal moving sliding seat is connected with the edging driving mechanism; The edging driving mechanism is used to drive the edging disc to rotate, the edging horizontal moving driving member drives the edging disc to move horizontally to approach or move away from the clamping device for feed edging, and the edging vertical moving driving member drives the edging disc to move vertically to adjust the edging height or to edging the upper and lower sides of the lens.

[0004] A vertical lens edging machine with double edging device as described above, the second transferring device comprises a second X-axis transferring assembly, a second Y-axis transferring assembly, a second Z-axis transferring assembly, and a second suction assembly connected with the second Z-axis transferring assembly, the second suction assembly comprises a second suction nozzle and a third suction nozzle respectively used to suction the lens to be processed and the processed lens between the edging station and the correcting mechanism.

[0005] A vertical lens edging machine with double edging device as described above, the second X-axis transferring assembly comprises a second X-axis transferring guide rail, a second X-axis transferring sliding seat sliding on the second X-axis transferring guide rail, and a second X-axis transferring driving member connected with the second X-axis transferring sliding seat, the second X-axis transferring driving member drives the second X-axis transferring sliding seat to move along the second X-axis transferring guide rail; The second Y-axis transferring assembly comprises a second Y-axis transferring guide rail, a second Y-axis transferring sliding seat sliding on the second Y-axis transferring guide rail, and a second Y-axis transferring driving member connected with the second Y-axis transferring sliding seat, the second Y-axis transferring driving member drives the second Y-axis transferring sliding seat to move along the second Y-axis transferring guide rail; The second Z-axis transferring assembly comprises a second Z-axis transferring guide rail, a second Z-axis transferring sliding seat sliding on the second Z-axis transferring guide rail, and a second Z-axis transferring driving member connected with the second Z-axis transferring sliding seat, the second Z-axis transferring driving member drives the second Z-axis transferring sliding seat to move along the second Z-axis transferring guide rail.

[0006] The vertical lens edger with double edging devices as described above, the correcting mechanism comprises a correcting support for placing the lens to be processed, correcting clamping arms located on both sides of the correcting support for centering the lens to be processed, and a correcting drive for driving the correcting clamping arms to move closer to or away from each other.

[0007] The vertical lens edger with double edging devices as described above, the first transferring device comprises a first X-axis transferring assembly, a first Y-axis transferring assembly, a first Z-axis transferring assembly, and a first suction assembly connected with the first Z-axis transferring assembly, the first suction assembly comprises first suction nozzles for sucking the lens to be processed and the processed lens between the material taking station and the correcting mechanism respectively.

[0008] The vertical lens edger with double edging devices as described above, the first X-axis transferring assembly comprises a first X-axis transferring guide rail, a first X-axis transferring sliding seat slidingly arranged on the first X-axis transferring guide rail, and a first X-axis transferring drive connected with the first X-axis transferring sliding seat, the first X-axis transferring drive drives the first X-axis transferring sliding seat to move along the first X-axis transferring guide rail. The first Y-axis transferring assembly comprises a first Y-axis transferring guide rail, a first Y-axis transferring sliding seat slidingly arranged on the first Y-axis transferring guide rail, and a first Y-axis transferring drive connected with the first Y-axis transferring sliding seat, the first Y-axis transferring drive drives the first Y-axis transferring sliding seat to move along the first Y-axis transferring guide rail. The first Z-axis transferring assembly comprises a first Z-axis transferring guide rail, a first Z-axis transferring sliding seat slidingly arranged on the first Z-axis transferring guide rail, and a first Z-axis transferring drive connected with the first Z-axis transferring sliding seat, the first Z-axis transferring drive drives the first Z-axis transferring sliding seat to move along the first Z-axis transferring guide rail.

[0009] A feeding method based on the vertical lens edger with double edging devices as described above, comprising the following steps: S1: the first transferring device sucks the lens to be processed from the material taking station and transfers and places it on the correcting mechanism, and then the first transferring device resets or avoids; S2: the correcting mechanism corrects the position of the lens to be processed; S3: the second transferring device sucks the corrected lens to be processed by using the second suction nozzle, the third suction nozzle remains empty, and moves to the edging station; S4: the second transferring device places the lens to be processed on the clamping device; S5: the clamping device clamps the lens and starts rotating, the first grinding assembly and the second grinding assembly approach the lens according to the preset program to grind the outer periphery, the upper side and the lower side of the lens respectively or synchronously. S6: while grinding is in progress, the second transfer device sends the lens that has finished grinding back to the correction mechanism, and is transferred back to the material taking station by the first transfer device, and then the first transfer device carries the next piece of lens to be processed to the correction mechanism for waiting.

[0010] The feeding method as described above, step S4 further comprises the following steps: S41: the second transfer device uses the third suction nozzle to adsorb and remove the lens that has finished grinding on the clamping device; S42: the second transfer device is displaced and adjusted, and uses the second suction nozzle to place the lens to be processed on the clamping device.

[0011] Compared with the prior art, the present application has the following advantages: 1. The present application breaks the limitation of the traditional vertical edging machine with single work station and single grinding head, and sets the first grinding assembly and the second grinding assembly on both sides of the clamping device, so that the equipment can realize double grinding efficiency, such as feeding and grinding the outer circle at the same time, or realize composite process, such as the grinding assembly on one side is responsible for the upper side grinding, and the grinding assembly on the other side is responsible for the lower side grinding at the same time. Compared with the single grinding head equipment which needs to be frequently lifted to switch the processing position, the present application greatly shortens the processing period of a single lens, and the production capacity is significantly improved.

[0012] 2. The present application adopts the segmented relay structure of the first transfer device + correction mechanism + second transfer device, and the structure design is more compact and smart, which can easily explore into the narrow clamping space surrounded by double grinding heads to work, and perfectly solves the space interference hidden trouble brought by the double grinding head upgrade.

[0013] 3. The second transfer device is equipped with a double suction nozzle structure, which can complete the quick exchange of taking out the processed lens and putting in the lens to be processed at the edging station through one-time in-out action. Compared with the long back-and-forth process of the traditional mechanical hand, the double suction nozzle design of the present application compresses the idle waiting time of the edging station to the shortest, so as to further improve the production rhythm of the whole machine.

[0014] 4. The advantages of the vertical edging machine are retained, and the gravity is used for auxiliary positioning to effectively prevent the large size and large mass lens from falling or deviating during clamping. At the same time, the integrated correction mechanism completes the center calibration before the lens enters the edging station, which cooperates with the automatic feeding and discharging process to reduce the labor cost, and ensures the consistency and yield of processing. BRIEF DESCRIPTION OF DRAWINGS In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without creative labor.

[0015] Figure 1 is a three-dimensional view of the edge grinding machine of the present application; Figure 2 is an exploded schematic view of the clamping device of the edge grinding machine of the present application; Figure 3 is a three-dimensional view of the first grinding assembly of the edge grinding machine of the present application; Figure 4 is a three-dimensional view of the second conveying device of the edge grinding machine of the present application; Figure 5 is a three-dimensional view of the correction mechanism of the edge grinding machine of the present application; Figure 6 is a three-dimensional view of the first conveying device of the edge grinding machine of the present application; Figure 7 is a flowchart of the loading method of the present application Figure 1 ; Figure 8 is a flowchart of the loading method of the present application Figure 2 .

DETAILED DESCRIPTION

[0016] Please refer to Figures 1 to 8 , a vertical lens edge grinding machine with double edge grinding devices, comprising a rack 1, a material taking station 2, a correction mechanism 3, a first conveying device 4, a second conveying device 5 and an edge grinding station 6 arranged on the rack 1, the edge grinding station 6 is provided with a clamping device 7 arranged oppositely along the vertical direction to clamp the lens, and two first grinding assemblies 8 and second grinding assemblies 9 for grinding the lens, the first conveying device 4 is configured to convey the lens back and forth between the material taking station 2 and the correction mechanism 3, the second conveying device 5 is configured to convey the lens back and forth between the correction mechanism 3 and the clamping device 7, and the second conveying device 5 has a double nozzle structure for quickly exchanging the lens.

[0017] In this embodiment, the traditional single transfer path is split into a relay conveying system composed of a first transfer device and a second transfer device, and a correction mechanism is used as a transfer node. This segmented design makes the second transfer device more compact, so it can easily move to the edging station between the first grinding assembly and the second grinding assembly, effectively solving the space interference problem caused by the double grinding head layout. The clamping device drives the lens to rotate, and the first grinding assembly and the second grinding assembly on the left and right sides can be fed simultaneously or step by step, for example, one side performs up-bevel grinding, the other side simultaneously performs down-bevel grinding, or simultaneously performs outer contour rough grinding, which significantly improves the processing efficiency of single lens. In addition, the present application is not limited to the above specific structure, the feeding mechanism of the first grinding assembly and the second grinding assembly can be driven by a screw module or a linear motor, the driving of the clamping device can be driven by a cylinder or an electric push rod, the moving module of the second transfer device can be cantilevered or gantry according to the space layout, the arrangement of the double suction nozzles can be horizontal or vertical parallel, and the type of grinding disc can be replaced by a bevel wheel, a polishing wheel or a slotting knife according to the process requirement.

[0018] Further, as a preferred embodiment of the present application but not limited, the clamping device 7 comprises an upper clamp 71 and a lower clamp 72 coaxially arranged in the vertical direction, the rack 1 is provided with a first guide channel 11 and a second guide channel 12, the first guide channel 11 and the second guide channel 12 are coaxially extended in the vertical direction; The upper clamp 71 is connected with a first rotary driving mechanism 73 penetrating in the first guide channel 11, the lower clamp 72 is connected with a second rotary driving mechanism 74 penetrating in the second guide channel 12, and the upper clamp 71 can move in the vertical direction under the driving of a clamping driving mechanism 75 to clamp or release the lens together with the lower clamp 72.

[0019] In this embodiment, the first guide channel and the second guide channel are coaxially arranged on the rack to provide high-precision physical guidance and support for the first rotary driving mechanism connected to the upper clamp and the second rotary driving mechanism connected to the lower clamp. During operation, the clamping driving mechanism drives the upper clamp to stably descend in the vertical direction, and the lower clamp firmly clamps the horizontally placed lens. Then, the first and second rotary driving mechanisms are synchronously operated to drive the lens to rotate around the vertical axis to receive grinding. This structure uses gravity to assist the initial positioning of the lens, effectively avoiding the center deviation problem caused by the lens sliding downward due to gravity in the horizontal clamping. Meanwhile, the upper and lower double driving structure can provide more uniform clamping torque to prevent the lens from slipping during high-torque grinding. The precise coaxial guide channel maximally eliminates rotational bounce, ensuring the edge grinding accuracy. In addition, as a possible variant, the specific form of the first and second rotary driving mechanisms can be servo motor direct drive or transmission through belt and gear, and the specific form of the clamping driving mechanism can be air cylinder, oil cylinder or electric push rod.

[0020] Further, as a preferred embodiment of the present scheme but not limited, the first grinding assembly 8 and the second grinding assembly 9 each include a grinding disc 81, an edge grinding driving mechanism 82, an edge grinding horizontal moving mechanism 83 and an edge grinding lifting mechanism 84. The edge grinding lifting mechanism 84 includes an edge grinding lifting driving member 841, an edge grinding lifting guide rail 842 extending in the vertical direction and arranged on the rack 1, and an edge grinding lifting sliding seat 843 slidingly arranged on the edge grinding lifting guide rail 842, and the edge grinding lifting driving member 841 is used to drive the edge grinding lifting sliding seat 843 to lift. The edge grinding horizontal moving mechanism 83 includes an edge grinding horizontal moving driving member 831, an edge grinding horizontal moving guide rail 832 extending in the horizontal direction and arranged on the edge grinding lifting sliding seat 843, and an edge grinding horizontal moving sliding seat 833 slidingly arranged on the edge grinding horizontal moving guide rail 832, and the edge grinding horizontal moving sliding seat 833 is connected with the edge grinding driving mechanism 82. The edge grinding driving mechanism 82 is used to drive the grinding disc 81 to rotate, the edge grinding horizontal moving driving member 831 drives the grinding disc 81 to move close to or away from the clamping device 7 in the horizontal direction to perform feed grinding, and the edge grinding lifting driving member 841 drives the grinding disc 81 to move in the vertical direction to adjust the grinding height or grind the upper and lower sides of the lens.

[0021] In this embodiment, the grinding edge lifting mechanism is fixed to the frame as a vertical axis (Z-axis) base, driving the entire grinding edge traversing mechanism and the grinding disc to lift and lower precisely to position the processing height. The grinding edge traversing mechanism is mounted on the lifting slide as a horizontal axis (X-axis), independently driving the grinding disc to feed horizontally to control the cutting depth and lens forming size. This structure is not only rigid and stable, effectively resisting grinding vibration, but also gives the grinding wheel two-dimensional freedom of movement in the vertical plane. Combined with the rotation of the clamping device, it can flexibly realize flat edge grinding, bevel grinding, and safe grinding of the upper and lower sides of the lens. The chamfering process, especially when the grinding components on both sides work together, can be adjusted to different heights to simultaneously chamfer the upper and lower edges of the lens, significantly improving the processing efficiency of complex processes. In addition, as a possible variant implementation, the specific form of the edge grinding lifting drive and the edge grinding traverse drive is not limited to a servo motor with a ball screw, but can also use a linear motor module or a gear and rack transmission. The guide rail can be a linear guide rail, a cross roller guide rail, or a dovetail guide rail. The grinding disc can also be replaced with a combined grinding wheel that integrates rough grinding, fine grinding, and polishing, and the working slot can be switched by lifting.

[0022] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the second transfer device 5 includes a second X-axis transfer assembly 51, a second Y-axis transfer assembly 52, a second Z-axis transfer assembly 53, and a second suction assembly 54 connected to the second Z-axis transfer assembly 53. The second suction assembly 54 includes a second suction nozzle 541 and a third suction nozzle 542 for suctioning the lens to be processed and the processed lens between the edge grinding station 6 and the correction mechanism 3, respectively.

[0023] In this embodiment, a high-precision three-dimensional moving module constructed by the second X-axis, second Y-axis, and second Z-axis transfer components endows the second suction component with the ability to flexibly shuttle between the correction mechanism and the narrow grinding station. In particular, the dual-suction head structure formed by the second and third suction nozzles integrated at its end enables the device to perform a highly efficient synchronous replacement operation mode when loading and unloading materials at the grinding station. That is, after the device carries the lens to be processed to the grinding station, it first uses the empty suction nozzle to pick up and remove the processed lens, and then uses the other suction nozzle to accurately place the lens to be processed into the clamping device through micro-displacement. This process eliminates the long back-and-forth travel required by traditional single-suction nozzle robots between picking up and unloading materials, compressing the idle waiting time of the grinding machine to the limit, thereby greatly improving the production cycle. At the same time, this dedicated three-axis rectangular coordinate structure has higher rigidity and linear motion accuracy than general robotic arms, and is more suitable for stable operation in the confined space surrounded by two grinding heads. The drive mechanism of each axis can be a ball screw, a synchronous belt module, or a linear motor.

[0024] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the second X-axis transfer assembly 51 includes a second X-axis transfer guide rail 511, a second X-axis transfer slide 512 slidably disposed on the second X-axis transfer guide rail 511, and a second X-axis transfer drive member 513 connected to the second X-axis transfer slide 512, wherein the second X-axis transfer drive member 513 drives the second X-axis transfer slide 512 to move along the second X-axis transfer guide rail 511; The second Y-axis transfer assembly 52 includes a second Y-axis transfer guide rail 521, a second Y-axis transfer slide 522 slidably disposed on the second Y-axis transfer guide rail 521, and a second Y-axis transfer drive 523 connected to the second Y-axis transfer slide 522. The second Y-axis transfer drive 523 drives the second Y-axis transfer slide 522 to move along the second Y-axis transfer guide rail 521. The second Z-axis transfer assembly 53 includes a second Z-axis transfer guide rail 531, a second Z-axis transfer slide 532 slidably disposed on the second Z-axis transfer guide rail 531, and a second Z-axis transfer drive member 533 connected to the second Z-axis transfer slide 532. The second Z-axis transfer drive member 533 drives the second Z-axis transfer slide 532 to move along the second Z-axis transfer guide rail 531.

[0025] In this embodiment, by constructing the second X-axis, second Y-axis, and second Z-axis transfer components as an orthogonally superimposed three-axis Cartesian coordinate movement system, the driving components of each axis precisely drive the corresponding slide to move along the guide rail, thereby synthesizing an arbitrary motion trajectory of the end effector in three-dimensional space. This structure not only provides extremely high rigidity and repeatability, ensuring that the second transfer device can carry the lens smoothly and accurately into the narrow edging station surrounded by the dual grinding components to complete the precision docking, but also avoids lens collisions or clamping misalignment caused by mechanical vibration. At the same time, the three axes are linked. The control system provides the device with flexible path planning capabilities, allowing for optimization of the movement path based on the height difference and horizontal distance between the correction mechanism and the clamping device. Furthermore, the transmission method between the transfer drive components and the slide can be flexibly selected according to accuracy and speed requirements. For example, ball screw drives can be used to pursue high rigidity and high precision, synchronous belt drives can be used to achieve high-speed and quiet operation, or gear and rack drives can be used to adapt to long strokes. The guide rail type can be roller linear guides or sliding guides, and the overall architecture layout can also be designed as a cantilever, gantry, or modular assembly structure according to the rack space.

[0026] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the correction mechanism 3 includes a correction support 31 for placing the lens to be processed, correction clamping arms 32 located on both sides of the correction support 31 for centering the lens to be processed, and a correction drive 33 for driving the correction clamping arms 32 to move closer or further apart from each other.

[0027] In this embodiment, by setting a correction support and symmetrically distributed correction clamps on both sides at the transfer node between the first and second transfer devices, when the first transfer device places the lens to be processed taken from the material handling station onto the correction support, the correction drive unit drives the correction clamps on both sides to move inward synchronously. Utilizing the physical compression and guiding effect of the inner contour of the clamps on the lens edge, the lens, which may have positional deviations, is forcibly pushed and positioned to the geometric center of the correction support. This mechanism not only serves as a physical transfer station for the two-stage transfer system but also effectively connects long-distance rough handling with short-distance fine handling. More importantly, it eliminates the cumulative error during the lens transfer process, ensuring that the second transfer device can accurately pick up the center of the lens, thereby ensuring that the lens is accurately clamped at the rotation center of the edging station, effectively preventing uneven grinding allowance or processing scrap caused by eccentric loading; in addition, the specific form of the correction drive can be a double piston cylinder, a motor-driven forward and reverse rotary screw module or a connecting rod opening and closing mechanism, and the shape of the correction clamp arm can be designed as V-shaped, arc-shaped or multi-point contact type according to the lens type. Anti-slip pads or vacuum suction cups can also be added to the surface of the correction support to maintain the position of the lens after correction.

[0028] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the first transfer device 4 includes a first X-axis transfer component 41, a first Y-axis transfer component 42, a first Z-axis transfer component 43, and a first suction component 44 connected to the first Z-axis transfer component 43. The first suction component 44 includes a first suction nozzle 441 for suctioning the lens to be processed and the processed lens between the material handling station 2 and the correction mechanism 3, respectively.

[0029] In this embodiment, a large-stroke three-dimensional Cartesian coordinate movement system composed of integrated first X-axis, first Y-axis, and first Z-axis transfer components provides the first suction component with a wide spatial operation capability between the material handling station and the calibration mechanism. During operation, the first Z-axis transfer component drives the first suction nozzle to descend and, in conjunction with the negative pressure generated by the vacuum generator, firmly adsorbs the lens. Subsequently, through the linkage control of the first X-axis and first Y-axis transfer components, the lens is smoothly and quickly transported to the top of the calibration mechanism for precise placement or for retrieving the processed lens; effectively covering the material handling station. With a large operating range, it realizes fully automated and unmanned flow between the lens to be processed and the processed lens at the material handling station and the calibration mechanism, completely replacing manual loading and unloading and avoiding lens contamination or scratches caused by human contact. In addition, the drive transmission method of each axis transfer component can be flexibly selected according to the load and speed requirements, such as ball screw, synchronous belt module, gear rack or linear motor. The overall structure layout can be designed as gantry type, cantilever type or hanging type. The first suction nozzle at the end can also be replaced with a flexible gripper adapted to special lens edges or a non-contact Bernoulli suction cup.

[0030] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the first X-axis transfer assembly 41 includes a first X-axis transfer guide rail 411, a first X-axis transfer slide 412 slidably disposed on the first X-axis transfer guide rail 411, and a first X-axis transfer drive member 413 connected to the first X-axis transfer slide 412, wherein the first X-axis transfer drive member 413 drives the first X-axis transfer slide 412 to move along the first X-axis transfer guide rail 411; The first Y-axis transfer assembly 42 includes a first Y-axis transfer guide rail 421, a first Y-axis transfer slide 422 slidably disposed on the first Y-axis transfer guide rail 421, and a first Y-axis transfer drive 423 connected to the first Y-axis transfer slide 422. The first Y-axis transfer drive 423 drives the first Y-axis transfer slide 422 to move along the first Y-axis transfer guide rail 421. The first Z-axis transfer assembly 43 includes a first Z-axis transfer guide rail 431, a first Z-axis transfer slide 432 slidably disposed on the first Z-axis transfer guide rail 431, and a first Z-axis transfer drive 433 connected to the first Z-axis transfer slide 432. The first Z-axis transfer drive 433 drives the first Z-axis transfer slide 432 to move along the first Z-axis transfer guide rail 431.

[0031] In this embodiment, by constructing the first X-axis, first Y-axis, and first Z-axis transfer components into an orthogonally superimposed three-degree-of-freedom Cartesian coordinate motion system, the corresponding transfer slide is precisely driven by the transfer drive components of each axis to move linearly along the transfer guide rail, thereby synthesizing the arbitrary motion trajectory of the first suction component in three-dimensional space. This structure gives the first transfer device the ability to flexibly and accurately transport materials between a wide range of material picking stations and fixed-point correction mechanisms, effectively covering the external trunk line of material flow. It not only ensures the repeatability and positioning accuracy of picking and placing materials, preventing suction failure or placement interference caused by position deviation, but also realizes unmanned continuous material supply from warehousing to the front end of the production line through automated control.

[0032] A feeding method for a vertical lens edging machine with dual edging devices as described in any of the preceding claims includes the following steps: S1: The first transfer device 4 picks up the lens to be processed from the material picking station 2 and transfers it to the correction mechanism 3. Then the first transfer device 4 resets or avoids it. S2: The correction mechanism 3 corrects the position of the lens to be processed; S3: The second transfer device 5 uses the second suction nozzle 541 to pick up the corrected lens to be processed, while its third suction nozzle 542 remains empty, and moves to the edge grinding station 6. S4: The second transfer device 5 places the lens to be processed onto the clamping device 7; S5: The clamping device 7 clamps the lens and begins to rotate. The first grinding component 8 and the second grinding component 9 approach the lens according to a preset program and grind the outer periphery, upper side and lower side of the lens respectively or simultaneously. S6: While grinding is in progress, the second transfer device 5 sends the finished grinding lens back to the calibration mechanism 3, and the first transfer device 4 transfers it back to the material handling station 2. Then, the first transfer device 4 transports the next lens to be processed to the calibration mechanism 3 to wait.

[0033] In this embodiment, the complex feeding process is broken down into a segmented relay process of external material handling, intermediate correction, and internal loading. A first transfer device handles the long-distance external transport between the material handling station and the correction mechanism, the correction mechanism handles the transfer and correction of the lens's center position, and a second transfer device handles the short-distance, high-frequency internal interaction between the correction mechanism and the grinding station, thus achieving parallel operation of material transport and grinding. In steps S1 to S2, the first transfer device transports the lens to the correction mechanism for centering, effectively eliminating the accumulated positional error during the feeding process and ensuring the concentricity of the lens when it is clamped at the grinding station. In steps S3 to... In step S4, the second transfer device uses its specific nozzle configuration to precisely deliver the calibrated lens into the grinding station. In particular, in steps S5 and S6, a highly efficient strategy of synchronizing processing and logistics is adopted. That is, while the clamping device clamps the lens and the first and second grinding components perform efficient grinding on both sides, the transfer system is not idle. The second transfer device sends the lens that has been completed in the previous cycle back to the calibration mechanism, and the first transfer device puts it back into storage. The first transfer device then immediately moves the next lens to be processed to the calibration mechanism to wait. This assembly line operation mode greatly reduces the non-processing idle time of the equipment and significantly improves the production cycle of the whole machine.

[0034] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, step S4 also includes the following steps; S41: The second transfer device 5 uses the third suction nozzle 542 to adsorb and remove the polished lens from the clamping device 7; S42: The second transfer device 5 is displaced and adjusted, and the lens to be processed is placed on the clamping device 7 using the second suction nozzle 541.

[0035] In this embodiment, by utilizing the coordinated operation of the second and third suction nozzles with a preset spacing on the second transfer device, a rapid exchange action of taking out the old and replacing it with the new is performed at the edging station. When the second transfer device arrives at the edging station with the lens to be processed, the third suction nozzle, which is in an empty state, first picks up and removes the finished lens that has just been processed from the clamping device. Then, the device only needs to make a slight displacement adjustment equivalent to the distance between the two suction nozzles, and can quickly and accurately load the new lens into the clamping device using the second suction nozzle that has the lens to be processed. This process simplifies the traditional long-cycle back-and-forth action of "unloading-transporting-picking-returning-loading" into a stationary action of "unloading-micro-movement-loading", which greatly reduces the non-processing idle time of the clamping device due to waiting for material replacement, thereby significantly improving the production cycle and effective utilization rate of the whole machine.

[0036] Furthermore, as a preferred embodiment of this solution and not a limitation, the grinding lateral slide 833 is provided with a clamping part 8331 at the middle position for cooperating with fasteners to clamp and fix the grinding drive mechanism 82, and the distance from the clamping part 8331 to the top and bottom of the grinding lateral slide 833 is equal.

[0037] In this embodiment, the components are universalized and modularized. That is, the same grinding lateral slide can be used in both the first grinding assembly on the left and the second grinding assembly on the right, without the need for special design and manufacturing. This significantly reduces mold development costs, the variety of components in inventory, and the assembly error rate. At the same time, the center clamping method makes the grinding reaction force closer to the geometric center of the sliding block and its back guide rail mating surface, effectively reducing the sliding block overturning or unilateral wear of the guide rail caused by eccentric torque, and improving the smoothness and rigidity of the feed motion.

[0038] The working principle of this embodiment is as follows: After the equipment is started, the first transfer device 4 first performs the external material picking action. Its first Z-axis transfer component 43 drives the first suction nozzle 441 to descend and pick up a lens to be processed from the material picking station 2, such as the material tray. Through the linkage of the first X-axis transfer component 41 and the first Y-axis transfer component 42, the lens is transported and placed on the correction support 31 of the correction mechanism 3. Then the first transfer device 4 resets or moves to a safe position to avoid it.

[0039] Next, the calibration mechanism 3 operates, and the calibration drive 33 drives the calibration clamps 32 on both sides to move towards the center synchronously, eliminating the positional deviation of the lens and ensuring that the center of the lens coincides with the system reference.

[0040] Subsequently, the second transfer device 5 intervenes, moving above the correction mechanism 3 and using one of the suction nozzles in its second suction assembly 54 to pick up the corrected lens to be processed, while the other suction nozzle remains idle. The second transfer device 5 then carries the lens to be processed to the edging station 6.

[0041] At the edge grinding station 6, the equipment performs a rapid material change process: if there is already a finished lens on the clamping device 7, the second transfer device 5 first uses the empty third suction nozzle 542 to pick up and remove the finished lens; then, the second transfer device 5 makes a slight displacement adjustment through the X / Y axis assembly so that the second suction nozzle 541 holding the lens to be processed is aligned with the clamping center, and the lens to be processed is placed on the lower clamp 72.

[0042] The upper clamp 71 of the clamping device 7 then descends, cooperating with the lower clamp 72 to firmly clamp the lens, and the lens is driven to rotate at a predetermined speed by the rotary drive mechanism. At this time, the first grinding assembly 8 and the second grinding assembly 9 located on the left and right sides begin to work. They use their respective edge-grinding traverse mechanism 83 to control the feed depth and the edge-grinding lifting mechanism 84 to adjust the processing height. During the processing, the two grinding assemblies can adopt an asynchronous cooperative mode: for example, the two grinding heads simultaneously feed and grind the outer contour of the lens to double the amount of material removed; then, the first grinding assembly 8 adjusts to the height of the upper edge of the lens to perform an upper chamfer, and the second grinding assembly 9 simultaneously adjusts to the height of the lower edge of the lens to perform a lower chamfer. This dual-side parallel processing significantly shortens the total grinding time of a single lens.

[0043] While the grinding process is underway, the second transfer device 5 transports the finished lens it has picked up back to the calibration mechanism 3 for placement. Subsequently, the first transfer device 4 retrieves the finished lens back to the material handling station 2 and picks up the next lens to be processed, placing it into the calibration mechanism 3 to await processing. Through this parallel operation mode, when the edge grinding station 6 completes its processing, a new lens to be processed is already ready in the calibration mechanism 3, thus realizing a fully automated and highly efficient continuous production cycle.

[0044] The above are implementation methods provided in conjunction with specific content, and it is not intended that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. A vertical lens edger having a double edging device, characterized in that, The edge grinding machine comprises a rack (1), a taking station (2), a correcting mechanism (3), a first transferring device (4), a second transferring device (5) and an edge grinding station (6) arranged on the rack (1), the edge grinding station (6) is provided with a clamping device (7) arranged in a vertical direction to clamp a lens, and two first grinding assemblies (8) and second grinding assemblies (9) for grinding the lens, the first transferring device (4) is configured to transfer the lens back and forth between the taking station (2) and the correcting mechanism (3), and the second transferring device (5) is configured to transfer the lens back and forth between the correcting mechanism (3) and the clamping device (7).

2. A vertical lens edger with double edging device according to claim 1, characterized in that, The clamping device (7) comprises an upper clamp (71) and a lower clamp (72) coaxially arranged in a vertical direction, the rack (1) is provided with a first guide channel (11) and a second guide channel (12), and the first guide channel (11) and the second guide channel (12) coaxially extend in a vertical direction; The upper clamp (71) is connected with a first rotary driving mechanism (73) penetrating in the first guide channel (11), the lower clamp (72) is connected with a second rotary driving mechanism (74) penetrating in the second guide channel (12), and the upper clamp (71) is driven by a clamping driving mechanism (75) to move in a vertical direction to clamp or release the lens together with the lower clamp (72).

3. A vertical lens edger with double edging device according to claim 1, characterized in that, The first grinding assembly (8) and the second grinding assembly (9) each comprise a grinding disc (81), an edge grinding driving mechanism (82), an edge grinding horizontal moving mechanism (83) and an edge grinding lifting mechanism (84); The edge grinding lifting mechanism (84) comprises an edge grinding lifting driving member (841), an edge grinding lifting guide rail (842) extending in a vertical direction and arranged on the rack (1), and an edge grinding lifting sliding seat (843) slidingly arranged on the edge grinding lifting guide rail (842), and the edge grinding lifting driving member (841) is used to drive the edge grinding lifting sliding seat (843) to lift and lower; The edge grinding horizontal moving mechanism (83) comprises an edge grinding horizontal moving driving member (831), an edge grinding horizontal moving guide rail (832) extending in a horizontal direction and arranged on the edge grinding lifting sliding seat (843), and an edge grinding horizontal moving sliding seat (833) slidingly arranged on the edge grinding horizontal moving guide rail (832), and the edge grinding horizontal moving sliding seat (833) is connected with the edge grinding driving mechanism (82); The edge grinding driving mechanism (82) is used to drive the grinding disc (81) to rotate, the edge grinding horizontal moving driving member (831) drives the grinding disc (81) to move close to or away from the clamping device (7) in a horizontal direction to feed and grind, and the edge grinding lifting driving member (841) drives the grinding disc (81) to move in a vertical direction to adjust the grinding height or grind the upper and lower sides of the lens.

4. A vertical lens edger with double edging device according to claim 1, characterized in that, The second transferring device (5) comprises a second X-axis transferring assembly (51), a second Y-axis transferring assembly (52), a second Z-axis transferring assembly (53), and a second suction assembly (54) connected with the second Z-axis transferring assembly (53), wherein the second suction assembly (54) comprises a second suction nozzle (541) and a third suction nozzle (542) respectively used for sucking the lens to be processed and the processed lens between the edging station (6) and the correcting mechanism (3).

5. A vertical lens edger with double edging device according to claim 4, characterized in that, The second X-axis transferring assembly (51) comprises a second X-axis transferring guide rail (511), a second X-axis transferring sliding base (512) slidingly arranged on the second X-axis transferring guide rail (511), and a second X-axis transferring driving member (513) connected with the second X-axis transferring sliding base (512) and used for driving the second X-axis transferring sliding base (512) to move along the second X-axis transferring guide rail (511). The second Y-axis transferring assembly (52) comprises a second Y-axis transferring guide rail (521), a second Y-axis transferring sliding base (522) slidingly arranged on the second Y-axis transferring guide rail (521), and a second Y-axis transferring driving member (523) connected with the second Y-axis transferring sliding base (522) and used for driving the second Y-axis transferring sliding base (522) to move along the second Y-axis transferring guide rail (521). The second Z-axis transferring assembly (53) comprises a second Z-axis transferring guide rail (531), a second Z-axis transferring sliding base (532) slidingly arranged on the second Z-axis transferring guide rail (531), and a second Z-axis transferring driving member (533) connected with the second Z-axis transferring sliding base (532) and used for driving the second Z-axis transferring sliding base (532) to move along the second Z-axis transferring guide rail (531).

6. A vertical lens edger with double edging device according to claim 1, characterized in that, The correcting mechanism (3) comprises a correcting support (31) used for placing the lens to be processed, correcting clamping arms (32) located on both sides of the correcting support (31) and used for center correcting the lens to be processed, and a correcting driving member (33) used for driving the correcting clamping arms (32) to move close to or away from each other.

7. A vertical lens edger with double edging device according to claim 1, characterized in that, The first transferring device (4) comprises a first X-axis transferring assembly (41), a first Y-axis transferring assembly (42), a first Z-axis transferring assembly (43), and a first suction assembly (44) connected with the first Z-axis transferring assembly (43), wherein the first suction assembly (44) comprises a first suction nozzle (441) used for sucking the lens to be processed between the material taking station (2) and the correcting mechanism (3).

8. A vertical lens edger with double edging device according to claim 7, characterized in that, The first X-axis transfer assembly (41) comprises a first X-axis transfer guide rail (411), a first X-axis transfer sliding base (412) slidingly arranged on the first X-axis transfer guide rail (411), and a first X-axis transfer driving member (413) connected with the first X-axis transfer sliding base (412), wherein the first X-axis transfer driving member (413) drives the first X-axis transfer sliding base (412) to move along the first X-axis transfer guide rail (411); The first Y-axis transfer assembly (42) comprises a first Y-axis transfer guide rail (421), a first Y-axis transfer sliding base (422) slidingly arranged on the first Y-axis transfer guide rail (421), and a first Y-axis transfer driving member (423) connected with the first Y-axis transfer sliding base (422), wherein the first Y-axis transfer driving member (423) drives the first Y-axis transfer sliding base (422) to move along the first Y-axis transfer guide rail (421); The first Z-axis transfer assembly (43) comprises a first Z-axis transfer guide rail (431), a first Z-axis transfer sliding base (432) slidingly arranged on the first Z-axis transfer guide rail (431), and a first Z-axis transfer driving member (433) connected with the first Z-axis transfer sliding base (432), wherein the first Z-axis transfer driving member (433) drives the first Z-axis transfer sliding base (432) to move along the first Z-axis transfer guide rail (431).

9. A method for loading a vertical lens edger with double edging device according to any one of claims 1 to 8, characterized in that, The method comprises the following steps: S1: the first transfer device (4) sucks the lens to be processed from the material taking station (2) and places it on the correction mechanism (3), and then the first transfer device (4) resets or avoids; S2: the correction mechanism (3) corrects the position of the lens to be processed; S3: the second transfer device (5) sucks the corrected lens to be processed by using the second suction nozzle (541), and the third suction nozzle (542) remains empty and moves to the edging station (6); S4: the second transfer device (5) places the lens to be processed on the clamping device (7); S5: the clamping device (7) clamps the lens and starts rotating, and the first grinding assembly (8) and the second grinding assembly (9) approach the lens according to a preset program to grind the outer periphery, the upper side and the lower side of the lens respectively or synchronously; S6: while grinding, the second transfer device (5) sends the lens that has completed grinding back to the correction mechanism (3), and the first transfer device (4) transfers it back to the material taking station (2), and then the first transfer device (4) carries the next lens to be processed to the correction mechanism (3) for waiting.

10. The method of claim 9, wherein, Step S4 further comprises the following steps: S41: the second transfer device (5) uses the third suction nozzle (542) to adsorb and remove the lens that has completed grinding on the clamping device (7); S42: the second transfer device (5) adjusts the displacement and places the lens to be processed on the clamping device (7) by using the second suction nozzle (541).

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