A laser cutting production line for mobile phone screen glass

Abstract

This invention discloses a laser cutting production line for mobile phone screen glass, including a feeding mechanism, a mobile phone screen glass positioning and cutting device, and a mobile phone screen glass laser cutting precision testing device. The feeding mechanism is used to feed the screen glass to be processed. The mobile phone screen glass positioning and cutting device is used for double-sided cutting of the C-corner and U-corner portions of the screen glass. The mobile phone screen glass laser cutting precision testing device is used to remove the C-corner fragments and U-corner fragments of the cut screen glass. This invention has high overall collaborative efficiency and can ensure processing stability.

Description

Technical Field

[0001] This invention relates to the field of screen glass processing technology, and in particular to a laser cutting production line for mobile phone screen glass. Background Technology

[0002] With the rapid development of the smartphone industry, the demand for mobile phone screen glass continues to rise, placing increasingly higher demands on the precision, efficiency, and automation of screen glass processing. Mobile phone screen glass typically requires multiple processes, including laser cutting, sharding (waste separation), inspection, and blanking, to reach the final product. In existing technologies, after the screen glass is picked up from the conveyor belt, it often relies solely on mechanical limits for coarse positioning, lacking a vision system to assist in precise positioning. This results in deviations in the glass's placement on the cutting table. Furthermore, the failure to perform secondary precise positioning correction on the cutting table during laser cutting leads to accumulated errors between the cutting path and the actual glass position, resulting in insufficient cutting dimensional accuracy and a high product defect rate. Simultaneously, waste is usually handled manually or by a single mechanism. It is difficult to simultaneously handle C-corner shards (suitable for ejection) and U-corner shards (suitable for gripping and pulling out) with different shapes and separation methods, leading to incomplete waste removal, product scratches, or waste contamination of finished products. Waste collection and management are also quite chaotic. Meanwhile, the material feeding process of existing production lines usually uses a single conveyor belt for linear conveying, and the gripping mechanism can only process a single piece of glass at a time, resulting in a mismatch between the material feeding cycle and the cutting cycle, which limits the overall production line capacity. At the same time, the conveyor belt layout lacks reasonable planning, occupies a large amount of production space, and the overall integration of the production line is not high. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a laser cutting production line for mobile phone screen glass.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: This invention provides a laser cutting production line for mobile phone screen glass, including a feeding mechanism, a mobile phone screen glass positioning and cutting equipment, and a mobile phone screen glass laser cutting precision testing equipment. The feeding mechanism includes a feeding conveyor belt. The mobile phone screen glass positioning and cutting equipment includes a cutting component, a positioning component, and a flipping component. The positioning component includes a primary positioning vision, a first fine positioning vision, a second fine positioning vision, and a pre-positioning robot. The cutting component includes a first laser cutting head, a second laser cutting head, a first cutting platform, and a second cutting platform. The pre-positioning robot picks up the screen glass from the feeding conveyor belt. Based on the primary positioning vision, the pre-positioning robot adjusts the position of the screen glass and places it at a predetermined position on the first cutting platform. The first laser cutting head performs a first-side cut on the screen glass located on the first cutting platform based on the first fine positioning vision. The flipping component flips the screen glass after the first-side cut... The screen glass is flipped and placed on the second cutting platform. The second laser cutting head performs a second-side cut on the screen glass located on the second cutting platform based on the second precision positioning vision. The mobile phone screen glass laser cutting precision detection equipment includes a mobile phone screen glass laser cutting sharding mechanism and a feeding mechanism. The feeding mechanism includes a rotating feeding component, a first conveyor belt, a second conveyor belt, a third conveyor belt, and a material transfer component. The rotating feeding component includes a feeding and suction component, and the material transfer component includes multiple material transfer and suction components. The mobile phone screen glass laser cutting sharding mechanism is used to push off the C-corner shards of the cut screen glass and pull out the U-corner shards of the cut screen glass. The feeding and suction component picks up the sharded screen glass from the first conveyor belt and places it on the second conveyor belt. The multiple material transfer and suction components simultaneously pick up multiple screen glasses from the second conveyor belt and place them on the third conveyor belt.

[0005] Furthermore, the first laser cutting head and the second laser cutting head are located above the first cutting stage and the second cutting stage, and the first laser cutting head and the second laser cutting head are arranged side by side and can move along a first direction; the first cutting stage and the second cutting stage are arranged side by side and can move along a second direction, and the first direction and the second direction are perpendicular to each other.

[0006] Furthermore, the pre-positioning robot arm is capable of moving along a first direction. The pre-positioning robot arm includes a suction cup assembly for picking up screen glass and a Z-axis drive module and an R-axis drive module capable of driving the suction cup assembly to rise, fall, and rotate.

[0007] Furthermore, the flipping assembly is capable of reciprocating along a first direction between the first cutting stage and the second cutting stage. The flipping assembly includes a flipping rod for flipping the screen glass, a rotational power component and a lifting drive module for driving the flipping rod to rotate and rise. The flipping rod is provided with a suction component for suctioning the screen glass.

[0008] Furthermore, both the first cutting stage and the second cutting stage include a base and a support portion disposed on the base. The top of the support portion forms a horizontal support surface for supporting the screen glass. The support portion is also provided with an air suction hole for adsorbing the screen glass. The support portion includes a first support plate and a second support plate. The first support plate and the second support plate are arranged in parallel and spaced apart, so that a gap space is formed between the first support plate and the second support plate, and the gap space allows the flipping rod to be placed therein.

[0009] Furthermore, the first conveyor belt and the second conveyor belt are arranged at a 90-degree angle, and the rotating feeding assembly is arranged at the angle between the first conveyor belt and the second conveyor belt; the third conveyor belt is arranged side by side with the second conveyor belt, and the third conveyor belt is far away from the second conveyor belt.

[0010] Furthermore, the rotary feeding assembly also includes a rotary drive module and a rotary arm. One end of the rotary arm is connected to the rotary drive module to rotate between the first conveyor belt and the second conveyor belt under the drive of the rotary drive module. The feeding and suction component is located at the other end of the rotary arm. The rotary feeding assembly also includes an angle adjustment power component located at the other end of the rotary arm. The feeding and suction component is connected to the angle adjustment power component so that the feeding and suction component adjusts its gripping position in the horizontal direction under the drive of the angle adjustment power component.

[0011] Furthermore, the laser cutting and shaving mechanism for the mobile phone screen glass includes a material pulling component and a material ejecting component. The material pulling component is used to pull out the U-corner shards of the screen glass after cutting. The material ejecting component includes a material pulling clamp and a material pulling drive module. The material pulling clamp can clamp or release the U-corner shards. The material pulling drive module is used to drive the material pulling clamp to move horizontally in the clamped state to pull out the U-corner shards. The material ejecting component includes a material ejecting rod and a material ejecting drive module. The material ejecting drive module is used to drive the material ejecting rod to move to eject the C-corner shards.

[0012] Furthermore, the mobile phone screen glass laser cutting and sharding mechanism also includes a waste removal and positioning component. The waste removal and positioning component includes a suction and positioning group located above the screen glass for suction and fixing the screen glass. The waste removal and positioning component also includes a positioning frame, a positioning lifting module, and a positioning lateral movement module. The positioning lifting module is connected to the positioning lateral movement module. The positioning frame is connected to the positioning lifting module. The suction and positioning group is located on the positioning frame and can be lifted, lowered, and moved laterally under the drive of the positioning lifting module and the positioning lateral movement module.

[0013] Furthermore, the mobile phone screen glass laser cutting and sharding mechanism also includes a waste receiving assembly, which includes a waste receiving hopper located below the material pulling clamp to catch the pulled-out U-corner shards and the pushed-out C-corner shards. The waste receiving assembly also includes a waste dropping hopper and a waste guiding hopper. The waste dropping hopper is located inside the waste guiding hopper, and the bottom of the waste guiding hopper is arranged at an incline. The waste receiving hopper is located on one side of the waste guiding hopper and is positioned lower than the waste guiding hopper.

[0014] The beneficial effects of this invention compared to existing technologies are as follows: By setting up a multi-level vision positioning system including initial positioning vision, first fine positioning vision, and second fine positioning vision, combined with a pre-positioning robot and two sets of laser cutting heads, precise automated control of the entire process of screen glass from loading to double-sided precision cutting is achieved, effectively improving cutting positioning accuracy and product yield; the flipping component operates efficiently back and forth between the two cutting platforms, eliminating the manual flipping step between the two sides of the cut and significantly shortening the production cycle; the waste removal mechanism adopts ejection and clamping / pulling methods to work in coordination for different shapes of C-corner and U-corner cracks, and is equipped with a waste receiving component to achieve orderly collection of waste, ensuring thorough waste removal without contaminating the finished product; the unloading mechanism adopts a multi-conveyor layout combining a rotating unloading component with a multi-suction component transfer component, realizing the synchronous transfer of multiple pieces of glass, significantly improving unloading efficiency and overall line capacity; the entire line highly integrates loading, cutting, waste removal, inspection, and unloading, minimizing manual intervention and effectively ensuring the consistency and stability of batch production, and has high application value.

[0015] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other objectives, features and advantages of the present invention more obvious and understandable, preferred embodiments are described in detail below. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of a laser cutting production line for mobile phone screen glass is provided for a specific embodiment of the present invention; Figure 2 A schematic diagram of the structure of a mobile phone screen glass positioning and cutting device provided in a specific embodiment of the present invention; Figure 3 A partial structural schematic diagram of a mobile phone screen glass positioning and cutting device provided in a specific embodiment of the present invention; Figure 4 A schematic diagram of the structure of the first laser cutting head provided in a specific embodiment of the present invention; Figure 5 A schematic diagram of the structure of the first cutting stage provided in a specific embodiment of the present invention; Figure 6 This is a schematic diagram of the pre-positioning robot provided in a specific embodiment of the present invention; Figure 7 A schematic diagram of the structure of a surface cleaning component provided in a specific embodiment of the present invention; Figure 8 A schematic diagram of the structure of a mobile phone screen glass laser cutting precision testing device provided in a specific embodiment of the present invention; Figure 9 This is a schematic diagram of the feeding mechanism provided in a specific embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the rotary feeding assembly provided in a specific embodiment of the present invention; Figure 11 This is a schematic diagram of the structure of the material transfer assembly provided in a specific embodiment of the present invention; Figure 12 A schematic diagram of the structure of the laser cutting and sharding mechanism for mobile phone screen glass provided in a specific embodiment of the present invention; Figure 13 This is a schematic diagram of the material extraction assembly provided in a specific embodiment of the present invention; Figure 14 This is a schematic diagram of the material pulling clamp provided in a specific embodiment of the present invention; Figure 15 This is a schematic diagram of the structure of the top material assembly provided in a specific embodiment of the present invention; Figure 16 This is a schematic diagram of the waste discharge positioning component provided in a specific embodiment of the present invention.

[0018] Figure Labels 1. Mobile phone screen glass positioning and cutting equipment; 11. Cutting assembly; 111. First laser cutting head; 112. First cutting stage; 1121. Base; 1122. First support plate; 1123. Second support plate; 1124. Suction hole; 1125. Interval space; 113. Second cutting stage; 114. Second laser cutting head; 13. Flipping assembly; 131. Flipping rod; 14. Surface cleaning assembly; 141. Brush; 2. Mobile phone screen glass laser cutting precision testing equipment; 21. Mobile phone screen glass laser cutting and sharding mechanism; 211. Material pulling assembly; 2111. Material pulling clamp; 21111. Material pulling clamp plate; 2112. Material pulling drive module; 212. Ejector assembly; 2121. Ejector rod; 2122. Ejector seat; 2123. Ejector transverse movement 213. Linear module; 213. Waste discharge positioning component; 2131. Suction positioning group; 2132. Positioning frame; 2133. Positioning lifting module; 2134. Positioning lateral movement module; 214. Waste receiving component; 2141. Waste receiving hopper; 2142. Waste dropping hopper; 2143. Waste guide hopper; 22. Unloading mechanism; 221. Rotary unloading component; 2211. Unloading suction component; 2212. Rotary drive module; 2213. Rotary arm; 2214. Angle adjustment power component; 222. First conveyor belt; 223. Second conveyor belt; 224. Third conveyor belt; 225. Transfer component; 2251. Transfer suction component; 2252. Transfer bracket; 2253. Transfer lateral movement module; 3. Loading mechanism; 31. Loading conveyor belt; 100. Screen glass. Detailed Implementation

[0019] The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0025] like Figures 1 to 16 As shown, this embodiment of the invention provides a mobile phone screen glass laser cutting production line, including a feeding mechanism 3, a mobile phone screen glass positioning and cutting equipment 1, and a mobile phone screen glass laser cutting precision testing equipment 2. The feeding structure 3 includes a feeding conveyor belt 31.

[0026] exist Figures 2 to 7In the illustrated embodiment, the mobile phone screen glass positioning and cutting device 1 includes a cutting component 11, a positioning component, and a flipping component 13. The positioning component is used to precisely position the screen glass 100, the cutting component 11 is used to perform laser cutting on the positioned screen glass 100, and the flipping component 13 is used to flip the screen glass 100 after the first side is cut to allow for a second side cutting.

[0027] Specifically, the positioning components include a preliminary positioning vision, a first fine positioning vision, a second fine positioning vision, and a pre-positioning robot. The preliminary positioning vision is used to perform initial position detection on the screen glass 100 entering the device, obtaining approximate position and orientation information of the screen glass 100. The first fine positioning vision is used to perform precise position detection on the screen glass 100 located on the first cutting stage 112, so that the first laser cutting head 111 can perform a first-side cut based on the precise position information. The second fine positioning vision is used to perform precise position detection on the screen glass 100 located on the second cutting stage 113, so that the second laser cutting head 114 can perform a second-side cut based on the precise position information. The preliminary positioning vision, the first fine positioning vision, and the second fine positioning vision can all employ CCD vision.

[0028] The pre-positioning robot is used to pick up the screen glass 100 from the feeding conveyor belt 31 and transport it to the first cutting stage 112. During the transport process, the pre-positioning robot adjusts the position of the screen glass 100 based on the position information obtained from the initial positioning vision, including translational and rotational adjustments, and finally accurately places the screen glass 100 at the predetermined position on the first cutting stage 112. This pre-positioning mechanism can greatly improve the efficiency of subsequent precision positioning, reduce the working waiting time of the first laser cutting head 111, and thus improve the overall production efficiency.

[0029] The cutting assembly 11 includes a first laser cutting head 111, a second laser cutting head 114, a first cutting stage 112, and a second cutting stage 113. The first laser cutting head 111 and the second laser cutting head 114 are used to laser cut the first and second surfaces of the screen glass 100, respectively, and the first cutting stage 112 and the second cutting stage 113 are used to support the screen glass 100 to be cut.

[0030] The working process of the equipment is as follows: First, the pre-positioning robot adjusts the position of the screen glass 100 based on the position information of the screen glass 100 obtained by the initial positioning vision, and accurately places it in the predetermined position of the first cutting stage 112; then, the first laser cutting head 111 cuts the screen glass 100 on the first cutting stage 112 based on the precise position information obtained by the first fine positioning vision, completing the cutting trajectory processing of the first side; then, the flipping component 13 flips the screen glass 100 after the first side is cut, and places the flipped screen glass 100 on the second cutting stage 113; finally, the second laser cutting head 114 cuts the screen glass 100 on the second cutting stage 113 based on the precise position information obtained by the second fine positioning vision, completing the double-sided cutting processing of the screen glass 100.

[0031] By coordinating the initial positioning vision, the first fine positioning vision, the second fine positioning vision, and the pre-positioning robot, multi-level position calibration of the screen glass 100 is achieved: the pre-positioning robot initially adjusts the glass posture based on the initial positioning vision and places it on the platform, then the first fine positioning vision guides the first laser cutting head 111 to perform precise first-side cutting, effectively eliminating errors caused by inconsistent incoming material posture; after the flipping component 13 transfers the glass with the first-side cut to the second cutting platform 113, the second fine positioning vision again precisely positions the glass and guides the second laser cutting head 114 to perform second-side cutting, ensuring that the graphics processed on both sides can be accurately aligned, significantly improving the product yield. At the same time, the flipping component 13 automatically completes the flipping and transfer of the glass between the first cutting platform 112 and the second cutting platform 113 set side by side, realizing the fully automated connection of the double-sided cutting process, avoiding manual intervention, and greatly improving processing efficiency and equipment production cycle.

[0032] like Figure 2 As shown, the first laser cutting head 111 and the second laser cutting head 114 are located above the first cutting stage 112 and the second cutting stage 113. The first laser cutting head 111 and the second laser cutting head 114 are arranged side by side and can move along the first direction; the first cutting stage 112 and the second cutting stage 113 are arranged side by side and can move along the second direction. The first direction and the second direction are perpendicular to each other.

[0033] Specifically, the first direction is the X-axis direction, and the second direction is the Y-axis direction. The first laser cutting head 111 and the second laser cutting head 114 are arranged side-by-side along the X-axis direction, connected together by a crossbeam or other supporting structure, and capable of independent movement along the X-axis direction. The first laser cutting head 111 is located above the first cutting stage 112 and is used to cut the screen glass 100 on the first cutting stage 112; the second laser cutting head 114 is located above the second cutting stage 113 and is used to cut the screen glass 100 on the second cutting stage 113.

[0034] In this embodiment, the first laser cutting head 111 and the second laser cutting head 114 are used to cut the C-corners and U-corners of the screen glass 100. The C-corner cutting refers to making a C-shaped cut on the four corners of the screen to remove the sharp edges of the four corners of the screen, while the U-corner cutting refers to making a U-shaped cut on the middle part of the top edge of the screen glass 100.

[0035] The first cutting stage 112 and the second cutting stage 113 are arranged side by side along the Y-axis. They are connected together by a base plate or other supporting structure and can move independently along the Y-axis. When the screen glass 100 is fed to the moving position in the Y-axis direction, the first laser cutting head 111 can cut the screen glass 100 on the first cutting stage 112 along a preset cutting trajectory. Similarly, the second laser cutting head 114 cuts the screen glass 100 on the second cutting stage 113 along a preset cutting trajectory.

[0036] By moving the first laser cutting head 111 and the second laser cutting head 114 along the first direction, and the first cutting stage 112 and the second cutting stage 113 along the second direction, with the first direction being perpendicular to the second direction, the laser cutting head and the cutting stage can move in coordination in two mutually perpendicular directions, thereby realizing the planar cutting trajectory processing of the screen glass 100.

[0037] In some embodiments, the prepositioning robot can move along a first direction. The prepositioning robot includes a suction cup assembly for picking up the screen glass 100 and a Z-axis drive module and an R-axis drive module that can drive the suction cup assembly to rise, fall and rotate.

[0038] Specifically, the pre-positioning robot also includes an X-axis drive module capable of driving the entire robot along a first direction. The X-axis drive module can use a linear motor, a servo motor in conjunction with a ball screw or belt drive, etc., to realize the reciprocating motion of the pre-positioning robot in the first direction. Through the X-axis drive module, the pre-positioning robot can reciprocate between the waiting position, the detection position of the initial positioning vision, and the loading position of the first cutting table 112 to complete the grasping, positioning, and placement of the screen glass 100.

[0039] The suction cup assembly is used to pick up the screen glass 100. The assembly includes multiple suction cups arranged in a predetermined pattern on the suction cup mounting plate. The suction cups can be vacuum suction cups or pneumatic suction cups, using a vacuum pump or air pump to generate negative pressure, thus achieving the picking up and releasing of the screen glass 100. The number and arrangement of the suction cups are designed according to the size and shape of the screen glass 100 to ensure stable picking up of the screen glass 100 without causing damage during the picking process.

[0040] The Z-axis drive module is used to drive the suction cup assembly to move vertically, that is, to move along the Z-axis direction, which is perpendicular to the first and second directions. The Z-axis drive module can use a servo motor with a ball screw, a servo motor with a linear module, or a cylinder as the drive method. Through the Z-axis drive module, the suction cup assembly can achieve precise height control, which facilitates accurate height positioning when gripping and releasing the screen glass 100, and avoids collisions between the screen glass 100 and other components.

[0041] The R-axis drive module is used to drive the suction cup assembly to rotate, that is, to rotate around the Z-axis. The R-axis drive module can use a servo motor with a harmonic reducer or planetary reducer to achieve precise rotation control of the suction cup assembly. Through the R-axis drive module, the pre-positioning robot can rotate and adjust the screen glass 100 according to the posture information of the screen glass 100 obtained from the initial positioning vision, so that the cutting trajectory of the screen glass 100 matches the preset trajectory of the first laser cutting head 111.

[0042] The pre-positioning robot's working process is as follows: First, the pre-positioning robot moves to the waiting position, and the Z-axis drive module drives the suction cup assembly to descend, picking up the screen glass 100. Then, the Z-axis drive module drives the suction cup assembly to rise, raising the screen glass 100 to a safe height. Next, the pre-positioning robot moves to the detection position of the initial positioning vision, which takes a picture of the screen glass 100 to obtain its position and orientation information. Based on this position and orientation information, the R-axis drive module drives the suction cup assembly to rotate, and the X-axis drive module drives the entire pre-positioning robot to move in the first direction, thereby pre-adjusting the position and orientation of the screen glass 100. Finally, the pre-positioning robot moves to the loading position of the first cutting stage 112, the Z-axis drive module drives the suction cup assembly to descend, placing the screen glass 100 at the predetermined position on the first cutting stage 112. The suction cups are released, and the Z-axis drive module drives the suction cup assembly to rise, completing one loading process.

[0043] With the above settings, the pre-positioning robot can achieve precise pre-positioning of the screen glass 100, adjusting the position and orientation of the screen glass 100 to a position close to the ideal cutting position, thereby reducing the workload of the first precision positioning vision and improving positioning efficiency.

[0044] In some embodiments, the flipping assembly 13 is capable of reciprocating along a first direction on the first cutting stage 112 and the second cutting stage 113. The flipping assembly 13 includes a flipping rod 131 for flipping the screen glass 100 and a rotational power component and a lifting drive module for driving the flipping rod 131 to rotate and lift. The flipping rod 131 is provided with a suction component for suctioning the screen glass 100.

[0045] Specifically, the flipping assembly 13 also includes an X-axis drive module capable of driving the entire flipping assembly 13 to move along the first direction. This X-axis drive module can employ a linear motor, a servo motor in conjunction with a ball screw, or a belt drive to achieve the reciprocating motion of the flipping assembly 13 in the first direction. Through this X-axis drive module, the flipping assembly 13 can move between the material-picking position of the first cutting table 112 and the material-discharging position of the second cutting table 113.

[0046] The flip lever 131 is a slender rod-shaped structure used to support and flip the screen glass 100. The length of the flip lever 131 is designed according to the size of the screen glass 100 to ensure stable support of the screen glass 100. The flip lever 131 can be made of lightweight, high-strength materials such as aluminum alloy or stainless steel to reduce the moment of inertia of the flip assembly 13 and improve the speed and accuracy of movement.

[0047] The rotating power component drives the flip rod 131 to rotate, thereby enabling the screen glass 100 to flip. The rotating power component can be driven by a servo motor with a reducer, a stepper motor, or a pneumatic motor. It is installed at the output end of the lifting drive module and moves up and down with it. The flip rod 131 is connected to the output shaft of the rotating power component, and under its drive, it rotates around its own axis. The flip angle of the flip rod 131 can be set according to actual needs, typically 180 degrees, to achieve the vertical flipping of the screen glass 100.

[0048] The lifting drive module is used to drive the flip rod 131 to move up and down, facilitating height adjustment of the flip rod 131 when picking up and releasing the screen glass 100. The lifting drive module can employ a servo motor with a ball screw, a servo motor with a linear module, or a cylinder as the driving method. Through the lifting drive module, the flip rod 131 can achieve precise height control, facilitating the transfer of the screen glass 100 between cutting platforms of different heights.

[0049] A suction component is mounted on the flip rod 131 and is used to suction the screen glass 100. The suction component can be a vacuum suction cup or a pneumatic suction cup, which generates negative pressure through a vacuum pump or air pump to achieve the suction and release of the screen glass 100. The number and arrangement of the suction components are designed according to the size of the screen glass 100 to ensure stable suction of the screen glass 100.

[0050] The working process of the flipping component 13 is as follows: First, the flipping component 13 moves to the material picking position of the first cutting table 112, the lifting drive module drives the flipping rod 131 to descend, and the suction component picks up the screen glass 100 after the first side is cut; then, the lifting drive module drives the flipping rod 131 to rise, raising the screen glass 100 to a safe height; next, the flipping component 13 moves along the first direction to above the material placement position of the second cutting table 113; then, the rotation power component drives the flipping rod 131 to rotate 180 degrees, flipping the screen glass 100; next, the lifting drive module drives the flipping rod 131 to descend, placing the flipped screen glass 100 on the second cutting table 113; finally, the suction component releases the screen glass 100, and the lifting drive module drives the flipping rod 131 to rise, completing one flipping and transfer process.

[0051] With the above configuration, the flipping assembly 13 can efficiently and stably complete the flipping and transfer of the screen glass 100, realizing the automation of the double-sided cutting process. The setting of the flipping assembly 13 moving along the first direction allows it to move flexibly between the two cutting platforms, improving the space utilization and production efficiency of the equipment.

[0052] exist Figure 5 In the embodiment shown, both the first cutting stage 112 and the second cutting stage 113 include a base 1121 and a support portion disposed on the base 1121. The top of the support portion forms a horizontal support surface for supporting the screen glass 100. The support portion is also provided with an air suction hole 1124 for adsorbing the screen glass 100.

[0053] Specifically, the support 1121 is used to support and fix the support component. The support 1121 can be made of materials such as cast iron, cast steel, or aluminum alloy, and has sufficient strength and rigidity to maintain a stable support state during the cutting process. The support component is integrally formed with the support 1121, or the support 1121 has a mounting surface or mounting groove for installing the support component, and the support component is fixedly installed on the support 1121 by bolts, locating pins, and other connecting parts.

[0054] The support part is used to directly support the screen glass 100. The top of the support part forms a horizontal support surface, which must ensure that the screen glass 100 can maintain a stable state during the cutting process.

[0055] A suction hole 1124 is disposed on the support portion, extending through the top and bottom of the support portion. The suction hole 1124 is connected to a vacuum system to generate negative pressure, thereby adsorbing the screen glass 100. The number and distribution of the suction holes 1124 are designed according to the size of the screen glass 100 to ensure uniform adsorption of the screen glass 100 and prevent the screen glass 100 from shifting or warping during the cutting process. As a preferred embodiment, the suction holes 1124 are evenly distributed on the top of the support portion, and the diameter and spacing of the suction holes 1124 are optimized to ensure adsorption force while avoiding damage to the screen glass 100.

[0056] The support portion can also be provided with a sealing groove, in which a sealing ring is installed. The sealing ring surrounds the air intake 1124 to improve the sealing performance of the air intake 1124 and enhance the adsorption effect. As a further preferred embodiment, the support portion can be made of a porous material, with the entire top of the support portion being breathable. Negative pressure is generated through the vacuum cavity inside the base 1121 to achieve overall adsorption of the screen glass 100. This porous support portion can provide a more uniform adsorption force.

[0057] The first cutting stage 112 and the second cutting stage 113 operate on the same principle. When the screen glass 100 is placed on the horizontal support surface of the support, the vacuum system is activated, generating negative pressure at the suction port 1124. This suction force adheres the screen glass 100 to the support, ensuring its stability during the cutting process and preventing movement due to cutting heat or vibration. After cutting, the vacuum system is shut off, releasing the negative pressure, and the screen glass 100 can then be removed by the robotic arm or the flipping assembly 13.

[0058] With the above configuration, the first cutting platform 112 and the second cutting platform 113 can stably support and fix the screen glass 100, ensuring the positional accuracy of the screen glass 100 during the cutting process and improving the cutting quality. The suction hole 1124 can adsorb the screen glass 100 through negative pressure, avoiding damage to the screen glass 100 caused by mechanical clamping. At the same time, the adsorption and fixing method can adapt to screen glass 100s of different shapes and sizes, improving the versatility of the equipment.

[0059] exist Figure 4 In the embodiment shown, the support includes a first support plate 1122 and a second support plate 1123. The first support plate 1122 and the second support plate 1123 are arranged in parallel and spaced apart, so that a gap space 1125 is formed between the first support plate 1122 and the second support plate 1123. The gap space 1125 allows the flipping rod 131 to be placed therein.

[0060] Specifically, the first support plate 1122 and the second support plate 1123 are elongated plate-like structures, arranged parallel to each other on the pedestal 1121. The tops of the first support plate 1122 and the second support plate 1123 form a horizontal support surface, and the tops of the two support plates are at the same height to ensure stable support for the screen glass 100. The spacing between the first support plate 1122 and the second support plate 1123 is designed according to the dimensions of the flip rod 131 to ensure that the flip rod 131 can smoothly enter the interval space 1125.

[0061] Both the first support plate 1122 and the second support plate 1123 are provided with air suction holes 1124. The air suction holes 1124 can be evenly distributed on the top of the support plate or arranged in multiple rows along the length of the support plate. When the screen glass 100 is placed on the first support plate 1122 and the second support plate 1123, the air suction holes 1124 of the two support plates generate negative pressure simultaneously, which together adsorbs the screen glass 100, ensuring the stable fixation of the screen glass 100.

[0062] The gap space 1125 is the space between the first support plate 1122 and the second support plate 1123, which allows the flipping rod 131 to enter. When the flipping assembly 13 needs to pick up the screen glass 100 on the first cutting stage 112, the flipping rod 131 descends and enters the gap space 1125, and the picking component picks up the bottom of the screen glass 100; when the flipping assembly 13 needs to place the screen glass 100 on the second cutting stage 113, the flipping rod 131 descends with the screen glass 100, the flipping rod 131 enters the gap space 1125, the picking component releases the screen glass 100, and the screen glass 100 is supported on the first support plate 1122 and the second support plate 1123.

[0063] Through this intermittent support structure, the flip rod 131 can complete the suction and release of the screen glass 100 without interfering with the support, achieving a compact spatial layout and improving the space utilization of the equipment. At the same time, the support structure of the first support plate 1122 and the second support plate 1123 can reduce the contact area with the screen glass 100, reduce the risk of contamination to the screen glass 100, and improve product quality.

[0064] like Figure 2 As shown, the mobile phone screen glass positioning and cutting device 1 also includes a surface cleaning component 14, which includes a brush 141, which is fixedly mounted on the moving path of the flipping component 13.

[0065] Specifically, the surface cleaning component 14 is used to clean the surface of the flipped screen glass 100, removing dust, debris, and other impurities from the surface of the screen glass 100, improving the cleanliness of the screen glass 100, and preparing it for subsequent second-side cutting. The surface cleaning component 14 includes a brush 141, which can be a roller brush, a flat brush, or a round brush. The bristles of the brush 141 can be made of materials such as nylon, pig bristles, wool, or synthetic fibers. The hardness and density of the bristles are selected according to the surface characteristics of the screen glass 100 to ensure that impurities are effectively removed without damaging the surface of the screen glass 100.

[0066] The brush 141 is fixedly disposed on the moving path of the flip assembly 13, and its specific position is arranged according to the movement trajectory of the flip assembly 13. When the flip assembly 13, carrying the flipped screen glass 100, passes the brush 141, the brush 141 contacts the surface of the screen glass 100 and cleans the surface of the screen glass 100. The brush 141 can be fixedly installed at a certain position between the first cutting stage 112 and the second cutting stage 113, or it can be fixedly installed at other positions in the stroke of the flip assembly 13.

[0067] The surface cleaning component 14 can automatically clean the flipped screen glass 100, removing glass debris and external dust generated during the cutting process. This ensures that the screen glass 100 has good cleanliness before the second side is cut, preventing impurities from affecting the cutting quality and product quality. Furthermore, by placing the surface cleaning component 14 on the moving path of the flipping component 13, the cleaning process can be achieved using the movement of the flipping component 13, eliminating the need for an additional drive mechanism, simplifying the equipment structure, and improving production efficiency.

[0068] In some embodiments, the cutting assembly 11 further includes a first cutting servo module capable of driving the first laser cutting head 111 to move along a first direction and a second cutting servo module capable of driving the second laser cutting head 114 to move along the first direction.

[0069] Specifically, the first cutting servo module includes a servo motor, a transmission mechanism, and a guiding mechanism. The servo motor is a high-precision servo motor, capable of providing precise speed and position control. The transmission mechanism can use a ball screw, synchronous belt, or linear motor to convert the rotary motion of the servo motor into linear motion. The guiding mechanism can use linear guides, crossed roller guides, or air hydrostatic guides to ensure the guiding accuracy and smooth movement of the first laser cutting head 111 during its movement.

[0070] The first laser cutting head 111 is mounted on the moving part of the first cutting servo module. Driven by the first cutting servo module, the first laser cutting head 111 can reciprocate along the first direction. The stroke of the first cutting servo module is designed according to the cutting trajectory of the screen glass 100 to ensure that the first laser cutting head 111 can cover the entire cutting range. The structure of the second cutting servo module is the same as that of the first cutting servo module, including a servo motor, a transmission mechanism, and a guiding mechanism. The second laser cutting head 114 is mounted on the moving part of the second cutting servo module. Driven by the second cutting servo module, the second laser cutting head 114 can reciprocate along the first direction.

[0071] During the cutting process, the first laser cutting head 111 moves along the first direction under the drive of the first cutting servo module, and moves along the second direction in conjunction with the first cutting stage 112 to achieve a planar cutting trajectory of the screen glass 100 on the first surface; the second laser cutting head 114 moves along the first direction under the drive of the second cutting servo module, and moves along the second direction in conjunction with the second cutting stage 113 to achieve a planar cutting trajectory of the screen glass 100 on the second surface.

[0072] Through the above settings, the first and second cutting servo modules can provide precise drive for the first laser cutting head 111 and the second laser cutting head 114, ensuring that the laser cutting heads can move precisely according to the preset cutting trajectory, thereby improving cutting accuracy and quality. The servo drive method has advantages such as fast response speed, high positioning accuracy, and flexible control, and can meet the high-precision cutting requirements of the mobile phone screen glass 100.

[0073] In some embodiments, the cutting assembly 11 further includes a first stage servo module capable of driving the first cutting stage 112 to move along the second direction and a second stage servo module capable of driving the second cutting stage 113 to move along the second direction.

[0074] Specifically, the first stage servo module includes a servo motor, a transmission mechanism, and a guiding mechanism. The servo motor is a high-precision servo motor, capable of providing precise speed and position control. The transmission mechanism can employ ball screws, synchronous belts, or linear motors to convert the rotary motion of the servo motor into linear motion. The guiding mechanism can use linear guides, crossed roller guides, or air hydrostatic guides to ensure the guiding accuracy and smoothness of the first cutting stage 112 during movement.

[0075] The first cutting stage 112 is mounted on the moving part of the first stage servo module. Driven by the first stage servo module, the first cutting stage 112 can reciprocate along the second direction. The stroke of the first stage servo module is designed according to the cutting trajectory of the screen glass 100 to ensure that the first cutting stage 112 can drive the screen glass 100 to cover the entire cutting range. As a preferred embodiment, the first stage servo module adopts a closed-loop control method and is equipped with a position detection device such as a grating ruler or encoder to achieve high-precision position feedback and control. The structure of the second stage servo module is the same as that of the first stage servo module, including a servo motor, a transmission mechanism, and a guiding mechanism. The second cutting stage 113 is mounted on the moving part of the second stage servo module. Driven by the second stage servo module, the second cutting stage 113 can reciprocate along the second direction.

[0076] During the cutting process, the first cutting stage 112 moves along the second direction under the drive of the first stage servo module, and cooperates with the movement of the first laser cutting head 111 along the first direction to realize the planar cutting trajectory of the screen glass 100 on the first surface; the second cutting stage 113 moves along the second direction under the drive of the second stage servo module, and cooperates with the movement of the second laser cutting head 114 along the first direction to realize the planar cutting trajectory of the screen glass 100 on the second surface.

[0077] With the above settings, the first stage servo module and the second stage servo module can provide precise drive for the first cutting stage 112 and the second cutting stage 113, ensuring that the cutting stage can move precisely according to the preset feed trajectory, thereby improving cutting accuracy and cutting quality.

[0078] In some embodiments, the mobile phone screen glass positioning and cutting device 1 is provided with at least two sets of first cutting platforms 112 and second cutting platforms 113. Specifically, the mobile phone screen glass positioning and cutting device 1 may be provided with two, three, or more sets of first cutting platforms 112 and second cutting platforms 113, each set including one first cutting platform 112 and one second cutting platform 113. The multiple sets of cutting platforms are arranged side by side along a first direction.

[0079] Multiple cutting platforms can share the same first laser cutting head 111 and second laser cutting head 114. The movement range of the laser cutting head in the first direction covers multiple cutting platforms. The corresponding cutting platform can be selected for cutting according to production needs.

[0080] By setting up multiple cutting platforms, the equipment can achieve parallel processing of 100 screen glass of various specifications, or realize continuous production mode, thereby improving work efficiency.

[0081] exist Figures 8 to 16In the embodiment shown, the mobile phone screen glass laser cutting precision testing equipment 2 includes a mobile phone screen glass laser cutting and sharding mechanism 21 and a feeding mechanism 22. Through the cooperation of these two mechanisms, the entire process of automated operation from waste removal of the sharded screen glass after cutting to orderly feeding of finished glass is realized.

[0082] like Figures 5 to 9 As shown, the laser cutting and cleaving mechanism 21 for mobile phone screen glass includes a material extraction component 211 and a material ejection component 212. The material extraction component 211 is specifically designed to remove U-shaped cleavage fragments from the screen glass. U-shaped cleavage fragments refer to the waste material fragments corresponding to the U-shaped notches formed at one or both ends of the long side of the glass during the cutting process. The connection method between these fragments and the glass body determines that they are suitable for removal by horizontal extraction. The material extraction component 211 includes a material extraction clamp 2111 and a material extraction drive module 2112. The material extraction clamp 2111 can clamp the U-shaped cleavage fragments. In the clamped state, the material extraction drive module 2112 drives the material extraction clamp 2111 to move horizontally, separating and removing the U-shaped cleavage fragments from the glass body through horizontal extraction, thereby avoiding potential cracking or damage to the glass body caused by vertical force.

[0083] The top-loading assembly 212 is specifically designed to remove C-corner cracks from screen glass. C-corner cracks refer to triangular or near-triangular scrap cracks formed after the four corners of the screen glass are beveled. Due to their shape and stress characteristics, these cracks are suitable for removal by a pushing method. The top-loading assembly 212 includes a top-loading rod 2121 and a top-loading drive module. The top-loading drive module drives the top-loading rod 2121 to move, and the top-loading rod 2121 applies a pushing force to the C-corner cracks, causing them to separate and detach from the glass body, achieving efficient removal.

[0084] In this embodiment, the material pulling component 211 and the material ejecting component 212 operate independently, employing different removal methods for the different shapes and connection characteristics of U-corner and C-corner cracks. They can work synchronously or sequentially according to the process cycle, effectively improving the efficiency of the waste removal process and minimizing the risk of damage to the glass body during waste removal. Through the organic combination of material pulling and ejecting actions, precise, efficient, and non-destructive removal of U-corner and C-corner cracks is achieved, solving the technical problem in existing technologies where a single waste removal action cannot simultaneously meet the removal requirements of two different types of waste, significantly improving the integrity of the glass cracks and the product yield.

[0085] exist Figure 7In the illustrated embodiment, the material pulling clamp 2111 includes two material pulling clamping plates 21111 arranged vertically opposite each other. Initially, the two clamping plates 21111 maintain a certain opening distance. When the screen glass arrives at the waste removal station, the U-shaped fragment is located within the opening area between the two clamping plates 21111. At least one clamping plate 21111 can rotate relative to the other clamping plate 21111. This rotation causes the two clamping plates 21111 to move closer together, thereby clamping and fixing the U-shaped fragment. After the material pulling drive module 2112 drives the material pulling clamp 2111 to move horizontally and remove the U-shaped fragment, the clamped clamping plates 21111 rotate in the opposite direction, causing the two plates to move away from each other, releasing the U-shaped fragment so that it naturally falls into the waste collection device.

[0086] In some embodiments, both material pulling clamps 21111 can rotate symmetrically relative to the central axis, that is, the upper clamp rotates downward and the lower clamp rotates upward, and the two move closer together to achieve clamping. This method provides a more uniform clamping force. In some embodiments, only one clamp (preferably the upper clamp) can rotate relative to the other (the lower fixed clamp). The lower clamp is fixed as a support reference, and the upper clamp rotates downward to achieve clamping. This method has a simpler structure and reduces the number of drive mechanisms, which helps to reduce equipment costs and maintenance difficulty. It is suitable for applications with relatively low requirements for clamping accuracy.

[0087] The clamping surface of the material pulling clamp 21111 can be adapted to the thickness and shape of the U-shaped glass. For example, an elastic buffer pad can be set on the clamping surface to avoid the rigid clamping causing chipping or cracking of the glass edge, thereby further improving the product protection effect.

[0088] The clamping plate structure arranged vertically can stably and reliably clamp the U-shaped split pieces. Combined with the opening and closing action of the rotation mode, the material pulling clamp 2111 has good clamping adaptability to U-shaped split pieces of different thicknesses and specifications. The clamping action responds quickly, effectively improving the cycle efficiency of the waste removal process.

[0089] exist Figure 8In the illustrated embodiment, the top material driving module includes a top material base 2122 and a top material horizontal movement linear module 2123. Top material rods 2121 are mounted and fixed on the top material base 2122. The number of top material rods 2121 can be set according to the number and layout of the C-corner cracks in the screen glass. In one embodiment, C-corner cracks exist at all four corners of the screen glass; therefore, four top material rods 2121 are correspondingly set, each corresponding to one of the four C-corner crack positions. The top material horizontal movement linear module 2123 is connected to the top material base 2122, driving the top material base 2122 to move the top material rods 2121 horizontally. After the top material rods 2121 move to the corresponding position of the C-corner cracks, they apply a horizontal pushing force to the C-corner cracks, causing the C-corner cracks to be ejected and separated from the glass body.

[0090] The top material transverse linear module 2123 can take various forms, such as a cylinder-driven linear slide, a servo motor-driven ball screw slide, or a linear motor-driven linear guide.

[0091] In one embodiment, the top material drive module can also be supplemented with a top material lifting module on the basis of the top material horizontal linear module 2123 to realize the two-axis linkage of the top material rod 2121 in the horizontal and vertical directions.

[0092] The combined structure of the top material holder 2122 and the top material horizontal moving linear module 2123 enables the top material rod 2121 to move precisely in the horizontal direction to the corresponding position of the C-corner crack before pushing it. The movement trajectory is clear, the action is stable and reliable, effectively ensuring the removal accuracy of the C-corner crack and avoiding problems such as incomplete cracking or damage to the glass body caused by deviation in the pushing direction or position.

[0093] exist Figure 9 In the illustrated embodiment, the waste discharge mechanism further includes a waste discharge positioning component 213, which includes a suction positioning group 2131. The suction positioning group 2131 is arranged above the screen glass. After the suction positioning group 2131 picks up the screen glass from the flipping component 13 and delivers it to the waste discharge station, it remains in contact with the upper surface of the screen glass and uses negative pressure adsorption to hold the screen glass in place. This ensures that the screen glass remains in a stable position during the material pulling and pushing actions, preventing displacement, deflection, or tilting of the glass body due to the application of pulling or pushing forces, thereby ensuring the accurate execution of the waste discharge action.

[0094] The suction positioning unit 2131 can employ a vacuum suction cup array. The vacuum suction cups are connected to a vacuum generating device via flexible hoses. The vacuum generating device can be a vacuum pump or a vacuum generator. When the vacuum system is activated, a negative pressure is formed inside the vacuum suction cups, firmly adsorbing and fixing the screen glass. The number and layout of the vacuum suction cups can be adaptively designed according to the size and shape of the screen glass to ensure uniform distribution of adsorption force and stable and reliable adsorption effect.

[0095] The suction positioning group 2131 adsorbs and fixes the top of the screen glass, providing a stable and reliable positioning reference for the material pulling and ejection actions. This effectively prevents the glass from shifting or deflecting during the waste removal process, significantly improves the accuracy of the waste removal position and the quality of the broken pieces, and reduces the product scrap rate caused by inaccurate positioning.

[0096] exist Figure 9 In the illustrated embodiment, the waste discharge positioning component 213 further includes a positioning frame 2132, a positioning lifting module 2133, and a positioning horizontal movement module 2134. The positioning lifting module 2133 and the positioning horizontal movement module 2134 are interconnected to form a two-axis linkage motion mechanism; the positioning frame 2132 is connected to the positioning lifting module 2133 and is driven by the positioning lifting module 2133 to perform lifting and lowering movements; the suction positioning group 2131 is installed and fixed on the positioning frame 2132 and moves together with the positioning frame 2132. Through the coordinated drive of the positioning lifting module 2133 and the positioning horizontal movement module 2134, the suction positioning group 2131 can perform two degrees of freedom of movement in the vertical direction (lifting and lowering) and the horizontal direction (horizontal movement), thereby achieving precise positioning and adsorption of screen glass of different positions and specifications.

[0097] The positioning and lifting module 2133 can adopt a cylinder linear lifting mechanism or a servo motor driven screw lifting mechanism, and the positioning and traversing module 2134 can adopt a cylinder linear push-pull mechanism, a servo motor driven synchronous belt linear module or a linear motor module.

[0098] exist Figure 6 In the illustrated embodiment, the waste discharge mechanism further includes a waste receiving assembly 214, which includes a waste receiving hopper 2141. The waste receiving hopper 2141 is positioned directly below the puller clamp 2111. After the puller clamp 2111 completes the horizontal extraction of the U-shaped glass fragment, it releases its grip, and the U-shaped glass fragment naturally falls into the waste receiving hopper 2141 under its own gravity. Similarly, after the pusher rod 2121 pushes the C-shaped glass fragment away from the glass body, the C-shaped glass fragment also falls into the waste receiving hopper 2141. The waste receiving hopper 2141 uniformly collects the waste fragments generated during the waste discharge process, preventing waste from scattering onto the equipment workbench or product area, and avoiding secondary contamination or scratches caused by waste fragments to the finished glass.

[0099] The opening size of the waste receiving hopper 2141 can be designed according to the maximum external dimensions of the U-shaped and C-shaped glass fragments to ensure that the waste can fall smoothly into the hopper without splashing out. The inner wall of the waste receiving hopper 2141 can be equipped with an anti-static coating or a buffer pad to prevent glass waste fragments from sliding along the inclined surface of the waste guide hopper 2143 after being broken by the glass fragments and falling into the waste receiving hopper 2141 through the low-end outlet, thus completing the orderly collection of waste.

[0100] The waste fragments released by the puller 2111 or pushed off by the push rod 2121 first fall into the waste hopper 2142. The waste hopper 2142 guides the waste to the inclined surface of the waste guide hopper 2143. The waste fragments slide on the inclined surface and finally slide out from the lower end of the waste guide hopper 2143 and fall into the lower waste receiving hopper 2141, thus realizing the centralized collection of waste.

[0101] The waste hopper 2143 can be equipped with guide baffles on its inclined bottom surface to guide waste falling from different positions in separate zones, preventing waste from colliding and accumulating on the inclined surface. This is suitable for high-speed production applications where waste is generated quickly and in large quantities. The waste receiving hopper 2141 can be designed to be detachable, making it convenient for operators to regularly empty the waste and facilitating maintenance.

[0102] The combination of the waste discharge hopper 2142, the waste guide hopper 2143, and the waste receiving hopper 2141 enables the orderly guidance and automatic collection of waste from the point of generation to the centralized collection point. The entire waste collection process requires no manual intervention, effectively reducing the labor intensity of operators. At the same time, the inclined guide method helps to avoid the accumulation and blockage of waste in the collection path, ensuring the quality and consistency of waste.

[0103] In some embodiments, the waste removal mechanism further includes a vision component, which includes a first waste removal detection vision device. The first waste removal detection vision device is positioned at the corresponding location of the waste removal station. Before the material pulling component 211 and the material ejector component 212 perform the waste removal action, the first waste removal detection vision device acquires an image of the screen glass arriving at the waste removal station and transmits the acquired image signal to the image processing system. The image processing system analyzes and processes the image, identifies and detects the actual position coordinates of the U-corner and C-corner cracks on the screen glass, compares them with preset standard position coordinates, and determines whether the crack positions are accurate, i.e., whether the glass is in the correct waste removal state. If the detection result shows that the crack positions are accurate, the waste removal mechanism performs the waste removal action according to a predetermined procedure; if the detection result shows that the crack positions deviate, the image processing system feeds back the deviation data to the control system. The control system then performs real-time compensation and correction of the movement position of the material pulling clamp 2111 or the material ejector 2121, or issues an alarm signal to prompt the operator to intervene manually, thereby avoiding waste removal failure or glass damage caused by position deviation.

[0104] The first waste inspection vision system can use an industrial CCD or CMOS camera, along with a lens of appropriate focal length and a supplementary light source (such as a ring LED light source or a backlight source) to form a complete vision inspection unit, so as to ensure that clear and stable inspection images can be obtained under different ambient light conditions.

[0105] The vision component also includes a second waste removal detection vision system. After the waste removal process is completed, this system acquires images of the screen glass to check if the shattered glass has been completely removed, specifically whether both the U-corner and C-corner shatters have been removed, and whether any waste material remains on the glass body. The image processing system analyzes the acquired images, using edge detection and contour recognition algorithms to determine if the screen glass contour conforms to the standard shape of a completely shattered piece. If waste material residue or an incomplete shatter is detected, an alarm or defective product rejection procedure is immediately triggered, marking the glass as defective and guiding it to a rework station or waste collection area to prevent defective products from flowing into subsequent processes.

[0106] The second waste removal detection vision system can also employ a combination of an industrial camera and an image processing system to ensure timely acquisition of clear glass images after the waste removal process is completed. The vision component also includes a third waste removal detection vision system. This third system performs high-precision image acquisition on the shattered screen glass after the waste removal process, quantitatively detecting the accuracy of the shattered cross-section and determining whether the dimensional deviation, straightness, and angular accuracy of the shattered glass edge meet predetermined quality requirements, i.e., whether the shattering accuracy meets product specifications. The image processing system uses sub-pixel-level image measurement algorithms to accurately extract the actual dimensional data of the shattered line at the glass edge, compares it with a preset tolerance range, and quantitatively evaluates and grades the shattering accuracy. The detection results can be simultaneously stored in the production data system for quality traceability and statistical process control during production.

[0107] like Figures 2 to 4 As shown, the unloading mechanism 22 includes a rotary unloading assembly 221, a first conveyor belt 222, a second conveyor belt 223, a third conveyor belt 224, and a transfer assembly 225. The first conveyor belt 222 receives the screen glass after it has been cleaved and waste-removed by the laser cutting and cleaving mechanism for mobile phone screen glass, and transports it to the picking position of the rotary unloading assembly 221. The second conveyor belt 223 receives the screen glass placed by the rotary unloading assembly 221 and transports it to the gripping area of ​​the transfer assembly 225. The third conveyor belt 224 transports the screen glass transferred by the transfer assembly 225 to subsequent inspection or packaging stations. The three conveyor belts, along with the rotary unloading assembly 221 and the transfer assembly 225, cooperate to form a complete unloading and conveying chain.

[0108] The rotary feeding assembly 221 includes a feeding and suction component 2211. The feeding and suction component 2211 adopts a vacuum suction cup structure, which can adsorb and firmly hold the screen glass to prevent displacement or drop during the transfer process. Driven by the rotary feeding assembly 221, the feeding and suction component 2211 picks up the screen glass that has been split from the picking position on the first conveyor belt 222 and places it on the feeding position on the second conveyor belt 223, realizing the transfer of glass from the first conveyor belt 222 to the second conveyor belt 223.

[0109] The material transfer assembly 225 includes multiple material transfer and suction components 2251, each preferably employing a vacuum suction cup structure. These multiple material transfer and suction components 2251 can simultaneously act on multiple screen glass panels located on the second conveyor belt 223, synchronously grabbing multiple screen glass panels at once and placing them as a whole onto the third conveyor belt 224, thereby achieving batch transfer, significantly improving the unloading cycle time, and meeting the requirements of large-scale production for unloading efficiency.

[0110] By integrating the waste discharge mechanism and the unloading mechanism 22 into one unit, the waste discharge of broken pieces and the unloading of glass can be completed continuously on the same equipment, avoiding manual transfer between processes, reducing the risk of glass damage, and reducing the equipment footprint. The use of the rotating unloading component 221 enables flexible connection between the first conveyor belt 222 and the second conveyor belt 223, and the use of multiple material transfer and suction components 2251 to transfer glass in batches simultaneously, effectively improving the production cycle.

[0111] exist Figure 2 In the illustrated embodiment, the first conveyor belt 222 and the second conveyor belt 223 are arranged at a 90-degree angle in the horizontal plane, meaning their conveying directions are perpendicular to each other. This design causes the incoming material direction (direction of the first conveyor belt 222) and the outgoing material direction (direction of the second conveyor belt 223) to change direction, facilitating flexible planning of the overall production line layout.

[0112] The rotary feeding assembly 221 is arranged within the angled area enclosed by the end of the first conveyor belt 222 and the beginning of the second conveyor belt 223, i.e., at the orthogonal intersection of the two conveyor belts. The rotation axis of the rotary feeding assembly 221 is located within the aforementioned angled area. The feeding and suction component 2211 rotates in an arc shape between the two conveyor belts with the rotation axis as the center. After picking up the material from the end of the first conveyor belt 222, it rotates about 90 degrees to place the glass at the beginning of the second conveyor belt 223. The transfer path is short, the rotation efficiency is high, and the glass remains in a stable adsorption state throughout the entire transfer process.

[0113] By arranging the first conveyor belt 222 and the second conveyor belt 223 at a 90-degree angle, and placing the rotating feeding component 221 at the angle, the glass can be turned and transferred in one step, with the shortest transfer path, effectively shortening the single pick-and-place cycle, improving the feeding efficiency, and making the overall machine space layout more compact and reasonable.

[0114] The third conveyor belt 224 is arranged side-by-side with the second conveyor belt 223, meaning their conveying directions are the same or parallel, and they are arranged parallel to each other in the horizontal plane. The third conveyor belt 224 is away from the second conveyor belt 223. Specifically, in the horizontal direction perpendicular to the conveying direction of the second conveyor belt 223, the third conveyor belt 224 and the second conveyor belt 223 maintain a certain distance. This distance allows the material transfer component 225 to perform reciprocating lateral movement between the second conveyor belt 223 and the third conveyor belt 224, thereby completing the transfer operation of picking up glass from the second conveyor belt 223 and placing it on the third conveyor belt 224. This side-by-side, spaced arrangement creates an operating space between the second conveyor belt 223 and the third conveyor belt 224 for the material transfer component 225 to move in. Multiple material transfer and suction components 2251 are arranged on the material transfer bracket 2252 along a lateral movement direction perpendicular to the conveyor belt conveying direction. When the material transfer bracket 2252 moves laterally from above the second conveyor belt 223 to above the third conveyor belt 224, the multiple material transfer and suction components 2251 are released simultaneously, placing all the screen glass that has been grabbed onto the third conveyor belt 224 at the same time.

[0115] The third conveyor belt 224 and the second conveyor belt 223 are arranged side by side at intervals, so that the lateral movement path of the material transfer component 225 is short and regular, which makes it easy to accurately control the material release position. At the same time, the arrangement of the two side by side conveyor belts makes the longitudinal dimensions of the whole machine compact, which helps to reduce the overall footprint of the equipment.

[0116] exist Figure 3 In the illustrated embodiment, the rotary feeding assembly 221 further includes a rotary drive module 2212 and a rotary arm 2213. The rotary drive module 2212 preferably employs a servo motor-driven rotary mechanism, capable of precisely controlling the rotation angle and speed to ensure accurate and repeatable transfer path of the feeding and suction component 2211 between the first conveyor belt 222 and the second conveyor belt 223. In other embodiments, the rotary drive module 2212 may also employ a stepper motor-driven rotary mechanism or a pneumatic rotary actuator.

[0117] One end of the rotating arm 2213 is connected to the output shaft of the rotary drive module 2212. Driven by the rotary drive module 2212, it rotates horizontally around the rotation axis, with the rotation stroke covering the material pick-up position of the first conveyor belt 222 to the material unloading position of the second conveyor belt 223. The other end of the rotating arm 2213 extends outward from the rotation axis, and the material unloading and suction component 2211 is located at this extended end. Thus, the rotating arm 2213 drives the material unloading and suction component 2211 to perform an arc-shaped sweeping motion between the first conveyor belt 222 and the second conveyor belt 223, completing the material pick-up and unloading actions.

[0118] The length of the rotating arm 2213 is designed based on the center distance between the first conveyor belt 222 and the second conveyor belt 223 and the arrangement position of the rotating shaft, so as to ensure that the feeding and picking components 2211 can accurately align with their respective picking / discharging positions when rotating above the two conveyor belts.

[0119] In other feasible implementations, the rotating arm 2213 can also be designed as a telescopic arm structure, that is, the effective length of the rotating arm 2213 can be adjusted within a certain range to adapt to production scenarios with different specifications of screen glass or different conveyor belt spacing.

[0120] In some embodiments, the rotary feeding assembly 221 further includes an angle adjustment power member 2214, which is located at the cantilever end of the rotary arm 2213, i.e., installed adjacent to the feeding and suction component 2211. The feeding and suction component 2211 is connected to the output end of the angle adjustment power member 2214. Driven by the angle adjustment power member 2214, the feeding and suction component 2211 can be adjusted in angle or position in the horizontal direction, i.e., it can rotate or translate around a vertical axis in the horizontal plane, thereby fine-tuning the gripping position.

[0121] The angle adjustment power component 2214 preferably adopts a rotary cylinder or a micro servo motor to output horizontal rotational motion, driving the feeding and suction component 2211 to rotate a certain angle in the horizontal plane, so as to correct the gripping position deviation caused by the deflection or position drift of the upstream incoming glass.

[0122] exist Figure 4In the illustrated embodiment, the material transfer assembly 225 includes a material transfer bracket 2252 and a material transfer traverse module 2253. The material transfer traverse module 2253 is preferably a motor-driven linear module, including a guide rail, a slider, and a drive mechanism. The material transfer bracket 2252 slides along the guide rail via the slider and reciprocates linearly along the guide rail direction under the drive of the drive mechanism. The guide rail direction of the material transfer traverse module 2253 is perpendicular to the conveying directions of the second conveyor belt 223 and the third conveyor belt 224, i.e., arranged along the parallel and spaced direction of the second conveyor belt 223 and the third conveyor belt 224, ensuring that the material transfer bracket 2252 can traverse across the second conveyor belt 223 and the third conveyor belt 224, performing reciprocating traverse movements between them.

[0123] Multiple material transfer and suction components 2251 are connected to a material transfer bracket 2252 and are arranged sequentially on the material transfer bracket 2252 along the conveying direction of the second conveyor belt 223. The spacing between each material transfer and suction component 2251 matches the spacing between adjacent screen glass panels on the second conveyor belt 223. When the material transfer bracket 2252 moves above the second conveyor belt 223, the multiple material transfer and suction components 2251 descend synchronously and simultaneously suction their respective screen glass panels, then rise synchronously. The material transfer bracket 2252 then moves laterally above the third conveyor belt 224, and the multiple material transfer and suction components 2251 descend synchronously again and simultaneously release the glass, completing one batch transfer operation.

[0124] Each material transfer and suction component 2251 can also be equipped with an independent lifting drive mechanism, so that each material transfer and suction component 2251 can independently perform lifting and lowering actions to adapt to application scenarios where the glass height on the second conveyor belt 223 is inconsistent or where selective gripping of glass at specific positions is required.

[0125] The structure of the transfer bracket 2252 in conjunction with the transfer transverse module 2253 enables multiple transfer and suction components 2251 to work together as a whole, realizing the synchronous batch transfer of multiple screen glass pieces. The number of pieces transferred at one time can be configured according to production needs, which greatly reduces the average unloading time of a single piece of glass and improves the equipment's production capacity. The linear guide structure of the transverse module ensures the stability of the movement of the transfer bracket 2252 and the repeatability of the positioning, ensuring the consistency of the unloading position each time.

[0126] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A laser cutting production line for mobile phone screen glass, characterized in that, The system includes a feeding mechanism, a mobile phone screen glass positioning and cutting equipment, and a mobile phone screen glass laser cutting precision testing equipment. The feeding mechanism includes a feeding conveyor belt. The mobile phone screen glass positioning and cutting equipment includes a cutting component, a positioning component, and a flipping component. The positioning component includes a primary positioning vision, a first fine positioning vision, a second fine positioning vision, and a pre-positioning robot. The cutting component includes a first laser cutting head, a second laser cutting head, a first cutting platform, and a second cutting platform. The pre-positioning robot picks up the screen glass from the feeding conveyor belt. Based on the primary positioning vision, the pre-positioning robot adjusts the position of the screen glass and places it at a predetermined position on the first cutting platform. The first laser cutting head performs a first-sided cut on the screen glass located on the first cutting platform based on the first fine positioning vision. The flipping component flips the screen glass after the first-sided cut and places it at a predetermined position on the first cutting platform. On the second cutting platform, the second laser cutting head performs a second-side cut on the screen glass located on the second cutting platform based on the second precision positioning vision. The mobile phone screen glass laser cutting precision detection equipment includes a mobile phone screen glass laser cutting sharding mechanism and a feeding mechanism. The feeding mechanism includes a rotating feeding component, a first conveyor belt, a second conveyor belt, a third conveyor belt, and a material transfer component. The rotating feeding component includes a feeding and suction component, and the material transfer component includes multiple material transfer and suction components. The mobile phone screen glass laser cutting sharding mechanism is used to push off the C-corner shards of the cut screen glass and pull out the U-corner shards of the cut screen glass. The feeding and suction components pick up the sharded screen glass from the first conveyor belt and place it on the second conveyor belt. The multiple material transfer and suction components simultaneously pick up multiple screen glasses from the second conveyor belt and place them on the third conveyor belt.

2. The mobile phone screen glass laser cutting production line according to claim 1, characterized in that, The first laser cutting head and the second laser cutting head are located above the first cutting stage and the second cutting stage, respectively. The first laser cutting head and the second laser cutting head are arranged side by side and can move along a first direction. The first cutting stage and the second cutting stage are arranged side by side and can move along a second direction. The first direction and the second direction are perpendicular to each other.

3. The mobile phone screen glass laser cutting production line according to claim 1, characterized in that, The pre-positioning robot arm is capable of moving along a first direction. The pre-positioning robot arm includes a suction cup assembly for picking up screen glass and a Z-axis drive module and an R-axis drive module capable of driving the suction cup assembly to rise, fall and rotate.

4. The mobile phone screen glass laser cutting production line according to claim 1, characterized in that, The flipping assembly is capable of reciprocating along a first direction between the first cutting stage and the second cutting stage. The flipping assembly includes a flipping rod for flipping the screen glass, a rotational power component and a lifting drive module for driving the flipping rod to rotate and lift. The flipping rod is provided with a suction component for picking up the screen glass.

5. A laser cutting production line for mobile phone screen glass according to claim 4, characterized in that, Both the first cutting platform and the second cutting platform include a base and a support portion disposed on the base. The top of the support portion forms a horizontal support surface for supporting the screen glass. The support portion is also provided with an air suction hole for adsorbing the screen glass. The support portion includes a first support plate and a second support plate. The first support plate and the second support plate are arranged in parallel and spaced apart, so that a gap space is formed between the first support plate and the second support plate, and the gap space allows the flipping rod to be placed therein.

6. The mobile phone screen glass laser cutting production line according to claim 1, characterized in that, The first conveyor belt and the second conveyor belt are arranged at a 90-degree angle, and the rotating feeding assembly is arranged at the angle between the first conveyor belt and the second conveyor belt; the third conveyor belt is arranged side by side with the second conveyor belt, and the third conveyor belt is far away from the second conveyor belt.

7. A laser cutting production line for mobile phone screen glass according to claim 1, characterized in that, The rotary feeding assembly further includes a rotary drive module and a rotary arm. One end of the rotary arm is connected to the rotary drive module to rotate between the first conveyor belt and the second conveyor belt under the drive of the rotary drive module. The feeding and suction component is located at the other end of the rotary arm. The rotary feeding assembly also includes an angle adjustment power component located at the other end of the rotary arm. The feeding and suction component is connected to the angle adjustment power component so that the feeding and suction component adjusts its gripping position in the horizontal direction under the drive of the angle adjustment power component.

8. The mobile phone screen glass laser cutting production line according to claim 1, characterized in that, The laser cutting and shaving mechanism for mobile phone screen glass includes a material pulling component and a material ejecting component. The material pulling component is used to pull out the U-corner shards of the screen glass after cutting. The material ejecting component includes a material pulling clamp and a material pulling drive module. The material pulling clamp can clamp or release the U-corner shards. The material pulling drive module is used to drive the material pulling clamp to move horizontally in the clamped state to pull out the U-corner shards. The material ejecting component includes a material ejecting rod and a material ejecting drive module. The material ejecting drive module is used to drive the material ejecting rod to move to eject the C-corner shards.

9. A laser cutting production line for mobile phone screen glass according to claim 1, characterized in that, The laser cutting and sharding mechanism for mobile phone screen glass also includes a waste removal and positioning component. The waste removal and positioning component includes a suction and positioning group located above the screen glass for suction and fixing the screen glass. The waste removal and positioning component also includes a positioning frame, a positioning lifting module, and a positioning lateral movement module. The positioning lifting module is connected to the positioning lateral movement module. The positioning frame is connected to the positioning lifting module. The suction and positioning group is located on the positioning frame and can be lifted and moved laterally under the drive of the positioning lifting module and the positioning lateral movement module.

10. A laser cutting production line for mobile phone screen glass according to claim 8, characterized in that, The laser cutting and sharding mechanism for mobile phone screen glass also includes a waste receiving assembly, which includes a waste receiving hopper located below the puller clamp to catch the pulled-out U-corner shards and the pushed-out C-corner shards. The waste receiving assembly also includes a waste discharge hopper and a waste guide hopper. The waste discharge hopper is located inside the waste guide hopper, and the bottom of the waste guide hopper is arranged at an incline. The waste receiving hopper is located on one side of the waste guide hopper and is positioned lower than the waste guide hopper.

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