A laser marking equipment for middle frame processing

Abstract

The present application relates to the technical field of marking machine, and discloses a laser marking equipment for middle frame processing, which comprises a blanking assembly line, the inner wall of the blanking assembly line is provided with an arc plate, the outer wall of the blanking assembly line is fixedly provided with a supporting plate, the upper surface of the supporting plate is respectively fixedly provided with an AOI gantry and a laser marking gantry, the outer wall of the AOI gantry and the laser marking gantry is respectively fixedly provided with a second electric sliding table and a third electric sliding table, the output end of the second electric sliding table and the third electric sliding table is fixedly provided with a lifting assembly, and the outer wall of the laser-engraving AOI detection camera is provided with a laser-engraving AOI detection lens. The blanking assembly line cooperates with the arc plate to convey the middle frame to the feeding assembly and the fine positioning assembly, and the laser marking laser head, the laser-engraving AOI detection camera, the laser-engraving AOI detection lens and the laser-engraving AOI detection light source are used for marking and detection, so that the middle frame can be automatically and continuously processed, and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of marking machine technology, specifically to a laser marking device for processing a middle frame. Background Technology

[0002] The mid-frame laser marking equipment is a specialized automated processing equipment designed for 3C products, metal or plastic mid-frames. It uses laser technology to permanently mark the surface of the mid-frame and can be integrated with AOI visual inspection. It is a core workstation equipment in the mid-frame assembly production line.

[0003] In related technologies, when performing laser marking and AOI inspection on the mid-frame, the product needs to be placed manually at the processing station. This limits the operation of the entire production line to the speed and stability of manual operation, resulting in a decrease in overall production efficiency and failing to meet the requirements of efficient automated production. Summary of the Invention

[0004] This invention provides a laser marking device for processing mid-frames, which solves the problem in related technologies that require manual placement of the mid-frames on the processing station for laser marking and AOI inspection, resulting in reduced overall production efficiency and failure to meet the requirements of efficient automated production.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a laser marking device for processing mid-frames, comprising a feeding assembly line, an arc-shaped plate rotating on the inner wall of the feeding assembly line, a support plate fixed on the outer wall of the feeding assembly line, an AOI gantry and a laser marking gantry fixed on the upper surface of the support plate, a second electric slide and a third electric slide fixed on the outer walls of the AOI gantry and the laser marking gantry, respectively, with lifting components fixedly installed at the output ends of the second and third electric slides, two sets of first electric slides fixed on the upper surface of the support plate, a precision positioning component fixedly installed at the output end of each of the first electric slides, a first electric push rod fixedly installed at the output end of one set of lifting components, a laser marking laser head fixedly installed at the output end of the first electric push rod, and a laser engraving AOI inspection camera and a laser engraving AOI inspection light source fixedly installed at the output end of the other set of lifting components, with a laser engraving AOI inspection lens installed on the outer wall of the laser engraving AOI inspection camera.

[0006] By adopting the above technical solution, when the middle frame is placed on the unloading production line for feeding, the unloading production line will cooperate with the arc plate to transport the middle frame to the precision positioning component. At this time, the first electric slide table installed on the upper surface of the support plate will drive the precision positioning component to slide, so that the third electric slide table controls a set of lifting components to slide. The laser marking head at the output end of the first electric push rod will perform the marking effect. After the marking is completed, the lifting components will control the laser engraving AOI inspection lens, laser engraving AOI inspection camera and laser engraving AOI inspection light source to move synchronously to the top of the middle frame, and the laser engraving AOI inspection lens will cooperate with the laser engraving AOI inspection camera to inspect the middle frame.

[0007] Preferably, a second electric push rod is fixedly connected to the upper side wall of the support plate, and a push block is fixedly provided at the output end of the second electric push rod, and the lower outer wall of the push block is inclined.

[0008] Preferably, the precision positioning component includes a fixture mounting plate, the outer wall of which is fixedly connected to the output end of the first electric slide, the inner wall of which is slidably connected to the outer wall of the push block, a vacuum generator and a controller are respectively provided on the upper surface of the support plate, and a positioning reference block is detachably mounted on the upper surface of the fixture mounting plate.

[0009] Preferably, a stop block is fixedly connected to the upper surface of the support plate, a first pressure sensor is fixedly connected to the inner wall of the stop block, the outer wall of the fixture mounting plate is slidably connected to the outer wall of the stop block, a hollow block is fixedly connected to the upper surface of the fixture mounting plate, and a guide post is fixedly connected to the inner wall of the hollow block.

[0010] Preferably, the outer wall of the guide post is slidably connected to a first inclined block, the outer wall of the first inclined block is slidably connected to the inner wall of the hollow block, a first elastic element is fixedly connected between the upper surface of the first inclined block and the inner wall of the hollow block, a cylinder is fixedly connected to the upper surface of the fixture mounting plate, and an arc-shaped plate is fixedly provided at the output end of the cylinder.

[0011] Preferably, a fixing post is fixedly connected to the inner wall of the arc-shaped piece, a second inclined block is slidably connected to the outer wall of the fixing post, the outer wall of the second inclined block is slidably connected to the inner wall of the arc-shaped piece, a second elastic element is fixedly connected between the upper surface of the second inclined block and the inner wall of the arc-shaped piece, and an air extraction pipe is provided on the inner wall of the fixture mounting plate.

[0012] Preferably, a feeding assembly is fixedly installed on the outer wall of the unloading production line, and a laser displacement sensor is installed on the inner wall of the unloading production line. The feeding assembly includes a conveying platform, the outer wall of which is fixedly connected to the outer wall of the unloading production line. A conveyor belt is installed on the inner wall of the conveying platform, and the outer wall of the conveyor belt is slidably connected to the outer wall of the fixture mounting plate. A second pressure sensor is installed on the inner wall of the conveying platform.

[0013] Preferably, the outer wall of the conveying platform is provided with a guide plate, the outer wall of the conveyor belt is slidably connected to the lower surface of the guide plate, the upper surface of the conveying platform is fixedly connected with a motor, the output end of the motor is fixedly provided with a swing plate, the outer wall of the swing plate is slidably connected to the outer wall of the middle guide plate, the outer wall of the swing plate is slidably connected to the side wall of the conveying platform near the second pressure sensor, the inner walls of the two guide plates are provided with through-beam photoelectric sensors, and the inner wall of the middle guide plate is provided with a receiver.

[0014] Preferably, a fourth electric push rod is fixedly connected to the upper surface of the conveying platform, a connecting plate is fixedly provided at the output end of the fourth electric push rod, the lower surface of the connecting plate is slidably connected to the inner wall of the conveying platform, a rotating rod is rotatably connected to the inner wall of the connecting plate, a docking plate is rotatably connected to the outer wall of the rotating rod, a positioning column is slidably connected to the inner wall of the docking plate, the outer wall of the positioning column is fixedly connected to the inner wall of the guide plate, and an adjusting plate is slidably connected to the inner wall of the docking plate.

[0015] Preferably, a third elastic element is fixedly connected between the outer wall of the adjusting plate and the inner wall of the docking plate, a right-angle block is fixedly connected to the outer wall of the docking plate near the rotating rod, the outer wall of the right-angle block is slidably connected to the inner wall of the conveying platform, a rack is fixedly connected to the outer wall of the right-angle block, and a gear is rotatably connected to the inner wall of the conveying platform, with the tooth end of the gear meshing with the tooth end of the rack.

[0016] This invention provides a laser marking device for processing mid-frames. It has the following beneficial effects:

[0017] 1. This invention uses a feeding assembly line in conjunction with an arc-shaped plate to transport the middle frame to the feeding assembly and the precision positioning assembly. At this time, the first electric slide table drives the precision positioning assembly to slide, allowing the laser marking laser head, laser engraving AOI inspection camera, laser engraving AOI inspection lens, and laser engraving AOI inspection light source to perform marking and inspection. After completion, the second electric push rod and push block unload the middle frame, enabling automated and continuous processing of the middle frame and improving production efficiency.

[0018] 2. This invention achieves alternating dual-station feeding, marking, and inspection through a swing plate, conveyor belt, and through-beam photoelectric sensor, avoiding idle waiting time at a single station, shortening the processing cycle, and improving equipment utilization and unit time output.

[0019] 3. This invention achieves multi-directional pressing and positioning through a precision positioning component, a cylinder, an arc-shaped plate, a first tilting block, and a second tilting block, and is combined with a vacuum generator for adsorption and fixation to prevent the middle frame from shifting, lifting, or bouncing. This can improve the marking position accuracy and detection stability, thereby improving the product yield.

[0020] 4. This invention achieves automatic centering and correction during the conveying process of the middle frame through adjusting plate, third elastic element, docking plate, gear, and rack. At the same time, it achieves synchronous and orderly material feeding at two workstations through push block and second electric push rod, which enables the equipment to achieve long-term stable operation. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a schematic diagram of the support plate structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the lifting block structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the first electric slide structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the second electric slide structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the first tilting block structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the fixed column structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the pusher block structure of the present invention;

[0029] Figure 9 This is a schematic diagram of the guide plate structure of the present invention;

[0030] Figure 10 This is a schematic diagram of the right-angled block structure of the present invention;

[0031] Figure 11 This is a schematic diagram of the adjustment plate structure of the present invention.

[0032] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0033] The components include: 1. Material feeding line; 2. Curved plate; 3. Support plate; 4. AOI gantry frame; 5. Laser marking gantry frame; 6. First electric slide table; 7. Second electric slide table; 8. Third electric slide table.

[0034] 9. Lifting assembly; 91. Lifting block; 92. Third electric push rod; 93. Guide block; 94. Mounting block;

[0035] 10. Precision positioning component; 1001. Fixture mounting plate; 1002. Controller; 1003. Vacuum generator; 1004. Positioning reference block; 1005. Stop block; 1006. First pressure sensor; 1007. Hollow block; 1008. Guide post; 1009. First elastic element; 1010. First tilting block; 1011. Cylinder; 1012. Vacuum pipe; 1013. Arc-shaped plate; 1014. Second elastic element; 1015. Second tilting block; 1016. Fixed post;

[0036] 11. First electric push rod; 12. Laser marking laser head; 13. Laser engraving AOI inspection camera; 14. Laser engraving AOI inspection lens; 15. Laser engraving AOI inspection light source; 16. Second electric push rod; 17. Push block;

[0037] 18. Feeding assembly; 1801. Conveying platform; 1802. Conveyor belt; 1803. Second pressure sensor; 1804. Guide plate; 1805. Swing plate; 1806. Motor; 1807. Through-beam photoelectric sensor; 1808. Receiver; 1809. Fourth electric push rod; 1810. Connecting plate; 1811. Rotating rod; 1812. Docking plate; 1813. Adjusting plate; 1814. Third elastic element; 1815. Positioning post; 1816. Right-angle block; 1817. Rack; 1818. Gear;

[0038] 19. Laser displacement sensor. Detailed Implementation

[0039] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. 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.

[0040] Please see the appendix Figure 1 - Appendix Figure 5This invention provides a laser marking device for processing mid-frames, including a material unloading line 1. An arc-shaped plate 2 rotates on the inner wall of the material unloading line 1, and a support plate 3 is fixed to the outer wall of the material unloading line 1. An AOI gantry 4 and a laser marking gantry 5 are respectively fixed to the upper surface of the support plate 3. A second electric slide 7 and a third electric slide 8 are respectively fixed to the outer walls of the AOI gantry 4 and the laser marking gantry 5. Lifting components 9 are fixedly installed at the output ends of both the second electric slide 7 and the third electric slide 8. Two sets of first electric slides 6 are fixed on the upper surface of the support plate 3. A precision positioning component 10 is fixedly installed at the output end of the first electric slide 6. A first electric push rod 11 is fixedly installed at the output end of one set of lifting components 9. A laser marking laser head 12 is fixedly installed at the output end of the first electric push rod 11. A laser engraving AOI inspection camera 13 and a laser engraving AOI inspection light source 15 are fixedly installed at the output end of the other set of lifting components 9. A laser engraving AOI inspection lens 14 is installed on the outer wall of the laser engraving AOI inspection camera 13.

[0041] Specifically, when the middle frame is placed on the unloading line 1, allowing the unloading line 1 to continuously feed material (the unloading line 1 uses existing technology and will not be described in detail here), when the middle frame needs to be marked, the unloading line 1 will cause the middle frame to contact the curved plate 2. The inclined design of the curved plate 2 will transport the middle frame to the loading component 18, and the loading component 18 will transfer the middle frame to the precision positioning component 10. At this time, the first electric slide 6 installed on the upper surface of the support plate 3 will drive the precision positioning component 10 to slide. When the first electric slide 6 controls the precision positioning component 10 to move to the appropriate position and stops, the third electric slide 8 installed on the outer wall of the laser marking gantry 5 will control a set of lifting components. After the lifting assembly 9 moves above the precision positioning assembly 10 with the middle frame, the third electric push rod 92 installed on the outer wall of the guide block 93 pushes the lifting block 91 to slide on the inner wall of the guide block 93. At this time, the guide block 93 will drive the mounting block 94 to slide synchronously, so that the mounting block 94 will drive the first electric push rod 11 to slide synchronously. The output end of the first electric push rod 11 has a laser marking head 12, which allows the lifting assembly 9 to adjust the distance between the laser marking head 12 and the middle frame to facilitate the laser marking effect. By pushing and pulling the laser marking head 12 with the first electric push rod 11, the laser marking head 12 can accurately mark at the set position on the middle frame.

[0042] After marking is completed, the first electric slide 6 will drive the precision positioning component 10 and the middle frame to continue sliding. At this time, the precision positioning component 10 will move to the bottom of the second electric slide 7 and stop, so that the second electric slide 7 installed on the outer wall of the AOI gantry 4 controls another set of lifting components 9 to slide. At this time, the lifting components 9 control the laser engraving AOI detection lens 14, laser engraving AOI detection camera 13 and laser engraving AOI detection light source 15 to move synchronously to the top of the middle frame, and let the laser engraving AOI detection lens 14 cooperate with the laser engraving AOI detection camera 13 to detect the middle frame. The laser engraving AOI detection light source 15 can provide light to the middle frame, which can improve the detection accuracy. The lifting components 9 use existing technology and will not be described in detail here.

[0043] Please see the appendix Figure 1 Appendix Figure 2 Appendix Figure 6 and attached Figure 8 A second electric push rod 16 is fixedly connected to the upper side wall of the support plate 3. A push block 17 is fixedly provided at the output end of the second electric push rod 16, and the lower outer wall of the push block 17 is inclined.

[0044] Specifically, the push block 17 is initially positioned between the two sets of first electric slides 6. When the precision positioning component 10 near the unloading line 1 finishes marking and inspecting the middle frame and then unloads the material, the second electric push rod 16 is activated to push the push block 17 to slide and contact the precision positioning component 10 near the unloading line 1. The inclined design on the lower side of the push block 17 stores the middle frame, and the push block 17 will simultaneously pull the middle frame away from the precision positioning component 10. When the push block 17 slides to the inner wall of the unloading line 1, the precision positioning component 10 near the unloading line 1 will reset, preparing for the next marking and inspection. At the same time as the precision positioning component 10 resets, the second electric push rod 16 pulls the push block 17 to slide synchronously. The push block 17 will cause the unloading line 1 to press against the middle frame. At this time, the push block 17 will retract, the middle frame will detach from the push block 17, and fall onto the unloading line 1. Material is conveyed and unloaded on the unloading line 1. After the second electric push rod 16 fully retracts the push block 17, the precision positioning component 10, which is away from the unloading line 1, will unload. At this time, the second electric push rod 16 is activated to push the push block 17 to store the middle frame on the precision positioning component 10. The push block 17 moves the middle frame, and the precision positioning component 10, which is away from the unloading line 1, will reset to facilitate the next marking and inspection. The push block 17 will place the middle frame on the unloading line 1. At this time, the push block 17 resets and moves between the two sets of first electric slides 6 to prepare for the next removal of the middle frame closer to the unloading line 1. By pushing and pulling the push block 17 with the second electric push rod 16, the middle frames on the two sets of precision positioning components 10 can be removed continuously, while speeding up the reset time of the precision positioning component 10, so as to achieve the effect of continuous unloading for marking and inspection.

[0045] Please see the appendix Figure 2 Appendix Figure 6and attached Figure 7 The precision positioning component 10 includes a fixture mounting plate 1001. The outer wall of the fixture mounting plate 1001 is fixedly connected to the output end of the first electric slide 6. The inner wall of the fixture mounting plate 1001 is slidably connected to the outer wall of the push block 17. A vacuum generator 1003 and a controller 1002 are respectively provided on the upper surface of the support plate 3. A positioning reference block 1004 is detachably mounted on the upper surface of the fixture mounting plate 1001. A stop block 1005 is fixedly connected to the upper surface of the support plate 3. A first pressure sensor 1006 is fixedly connected to the inner wall of the stop block 1005. The outer wall of the fixture mounting plate 1001 is slidably connected to the outer wall of the stop block 1005. A hollow block 1007 is fixedly connected to the upper surface of the fixture mounting plate 1001. A guide post 1008 is fixedly connected to the inner wall of the hollow block 1007. The outer wall of the guide post 1008 is slidably connected to... A first inclined block 1010 is attached, the outer wall of the first inclined block 1010 is slidably connected to the inner wall of the hollow block 1007, a first elastic element 1009 is fixedly connected between the upper surface of the first inclined block 1010 and the inner wall of the hollow block 1007, a cylinder 1011 is fixedly connected to the upper surface of the fixture mounting plate 1001, an arc-shaped piece 1013 is fixedly provided at the output end of the cylinder 1011, a fixing post 1016 is fixedly connected to the inner wall of the arc-shaped piece 1013, a second inclined block 1015 is slidably connected to the outer wall of the fixing post 1016, the outer wall of the second inclined block 1015 is slidably connected to the inner wall of the arc-shaped piece 1013, a second elastic element 1014 is fixedly connected between the upper surface of the second inclined block 1015 and the inner wall of the arc-shaped piece 1013, and an air extraction pipe 1012 is provided on the inner wall of the fixture mounting plate 1001.

[0046] Specifically, when the first electric slide 6 drives the fixture mounting plate 1001 to fit against the feeding assembly 18, the feeding assembly 18 pushes the middle frame onto the fixture mounting plate 1001. The positioning reference block 1004 restricts the position of the middle frame to prevent it from falling off. After the middle frame contacts the positioning reference block 1004, the cylinder 1011 mounted on the upper surface of the fixture mounting plate 1001 is activated, causing the cylinder 1011 to push the arc-shaped piece 1013 against the middle frame. At this time, after the arc-shaped piece 1013 pushes the middle frame to fit against the positioning reference block 1004, the middle frame pushes the first tilting block 1010 to slide upward. The first tilting block 1010 slides on the outer wall of the guide post 1008 and the inner wall of the hollow block 1007. The wall can prevent the first tilting block 1010 from falling off. As the first tilting block 1010 slides upward, the first elastic element 1009 will push the first tilting block 1010 to push the middle frame completely downward. At the same time, the second elastic element 1014 installed on the inner wall of the arc-shaped piece 1013 will also push the second tilting block 1015 to push the middle frame downward. The second tilting block 1015 cooperates with the first tilting block 1010 to push the middle frame, preventing the effect of lifting. After the middle frame is attached to the fixture mounting plate 1001, the vacuum generator 1003 installed on the upper surface of the support plate 3 is activated to work with the air extraction pipe 1012 to extract air, so that the middle frame is stably attached to the upper surface of the fixture mounting plate 1001.

[0047] When the fixture mounting plate 1001 drives the middle frame to be marked and inspected before unloading, the fixture mounting plate 1001 will contact the stop block 1005. The first pressure sensor 1006 will detect the position of the fixture mounting plate 1001. After the fixture mounting plate 1001 contacts the first pressure sensor 1006, the first pressure sensor 1006 will control the second electric push rod 16 and the push block 17 to start running, thereby unloading the material.

[0048] A controller 1002 is installed on the upper surface of the support plate 3. The controller 1002 is connected to various electrical control devices or sensors and other devices of the structure. The controller 1002 is existing technology and will not be described in detail here.

[0049] Please see the appendix Figure 1 Appendix Figure 9 Appendix Figure 10 and attached Figure 11A feeding assembly 18 is fixedly installed on the outer wall of the unloading production line 1, and a laser displacement sensor 19 is installed on the inner wall of the unloading production line 1. The feeding assembly 18 includes a conveyor platform 1801, the outer wall of which is fixedly connected to the outer wall of the unloading production line 1. A conveyor belt 1802 is installed on the inner wall of the conveyor platform 1801, and the outer wall of the conveyor belt 1802 is slidably connected to the outer wall of the fixture mounting plate 1001. A second pressure sensor 1803 is installed on the inner wall of the conveyor platform 1801, and a guide plate 1804 is installed on the outer wall of the conveyor platform 1801. The outer wall of the conveyor belt 1802 is slidably connected to the lower surface of the guide plate 1804. A motor 1806 is fixedly connected to the upper surface of the conveying platform 1801. A swing plate 1805 is fixedly installed at the output end of the motor 1806. The outer wall of the swing plate 1805 is slidably connected to the outer wall of the middle guide plate 1804. The outer wall of the swing plate 1805 is also slidably connected to the side wall of the conveying platform 1801 near the second pressure sensor 1803. Through-beam photoelectric sensors 1807 are installed on the inner walls of the two side guide plates 1804. A receiving sensor 1807 is installed on the inner wall of the middle guide plate 1804. The receiver 1808 and the upper surface of the conveying platform 1801 are fixedly connected to a fourth electric push rod 1809. A connecting plate 1810 is fixedly installed at the output end of the fourth electric push rod 1809. The lower surface of the connecting plate 1810 is slidably connected to the inner wall of the conveying platform 1801. A rotating rod 1811 is rotatably connected to the inner wall of the connecting plate 1810. A docking plate 1812 is rotatably connected to the outer wall of the rotating rod 1811. A positioning post 1815 is slidably connected to the inner wall of the docking plate 1812. The outer wall of the positioning post 1815 is fixedly connected to the inner wall of the guide plate 1804. An adjusting plate 1813 is slidably connected to the inner wall of the 1812. A third elastic element 1814 is fixedly connected between the outer wall of the adjusting plate 1813 and the inner wall of the docking plate 1812. A right-angle block 1816 is fixedly connected to the outer wall of the docking plate 1812 near the rotating rod 1811. The outer wall of the right-angle block 1816 is slidably connected to the inner wall of the conveying platform 1801. A rack 1817 is fixedly connected to the outer wall of the right-angle block 1816. A gear 1818 is rotatably connected to the inner wall of the conveying platform 1801. The tooth end of the gear 1818 is meshed with the tooth end of the rack 1817.

[0050] Specifically, firstly, the initial state of the swing plate 1805 is that one end of the swing plate 1805, with its inclined outer wall in contact with the second pressure sensor 1803 away from the unloading line 1, is as follows: when the middle frame enters the conveyor belt 1802 of the conveying platform 1801 through the unloading line 1 and the arc plate 2, the laser displacement sensor 19 will detect whether the middle frame has passed through. After detecting that the middle frame has completely passed through, the motor 1806 fixed on the upper surface of the conveying platform 1801 will control the swing plate 1805 to slide on the outer wall of the middle guide plate 1804. At this time, the swing plate 1805 is in a vertical state, thereby allowing the middle frame to slide against the guide plate 1804. The conveyor belt 1802 on the side near the unloading line 1 drives the middle frame to feed, and the obstruction of the swing plate 1805 can prevent the middle frame from entering other stations. When the middle frame moves to the appropriate position, the middle frame will block the through-beam photoelectric sensor 1807 from sending a signal to the receiver 1808, so that the receiver 1808 controls the fourth electric push rod 1809 and the motor 1806 to start at the same time. At this time, the motor 1806 will drive the swing plate 1805 to rotate and make the swing plate 1805 contact the second pressure sensor 1803 near the side near the unloading line 1, which can prevent the middle frame from entering the station.

[0051] At this time, the fourth electric push rod 1809 is activated, which pushes the connecting plate 1810 to slide against the inner wall of the conveying platform 1801. The sliding of the connecting plate 1810 will drive the rotating rod 1811 to rotate. One end of the rotating rod 1811 rotates against the inner wall of the connecting plate 1810, and the other end rotates against the inner wall of the docking plate 1812, so that the rotating rod 1811 pushes the docking plate 1812 to slide. When the docking plate 1812 slides, it will slide against the outer wall of the positioning post 1815, which can prevent the docking plate 1812 from shifting. When the docking plate 1812 slides, it will pull the right-angle block 1816 to slide synchronously. The right-angle block 1816, through the cooperation of the gear 1818 and the rack 1817, makes the two sets of docking plates 1812 synchronously aligned. When the docking plate 1812 slides, it will drive the adjusting plate 1813 to slide synchronously. The arc-shaped surface formed by the docking plate 1812 and the adjusting plate 1813 facilitates the entry of the middle frame. At the same time, the third elastic element 1814 pushes the adjusting plate 1813 to always be in contact with the middle frame. When the adjusting plate 1813 contacts the middle frame, it will compress the third elastic element 1814, which can stably transport the middle frame and achieve the effect of correction. When the middle frame enters the fixture mounting plate 1001 and wants to detach from the adjusting plate 1813, the third elastic element 1814 will push the adjusting plate 1813, so that the two sets of adjusting plates 1813 are aligned synchronously and provide thrust to the middle frame, which can facilitate the entry of the middle frame into the fixture mounting plate 1001.

[0052] When the middle frame blocks the through-beam photoelectric sensor 1807, the fourth electric push rod 1809 will complete one reciprocating stroke. At this time, the swing plate 1805 will contact the second pressure sensor 1803 near the unloading line 1. When the middle frame passes the laser displacement sensor 19, the conveyor belt 1802 near the unloading line 1 will drive the middle frame to fit with the swing plate 1805. After the middle frame has completely passed, the swing plate 1805 will swing and drive the middle frame to contact the conveyor belt 1802 away from the unloading line 1, so that the middle frame enters the second station for correction and loading again. This allows the two sets of precision positioning components 10 to be placed into the middle frame alternately, so that the two sets of precision positioning components 10 can drive the middle frame to be marked, detected and unloaded respectively, preventing the two sets of middle frames from waiting to be processed in the same equipment, thus improving automation and shortening processing time.

[0053] Furthermore, the guide plates 1804 on both sides are fixed to the side walls of the conveyor platform 1801, and the conveyor belt 1802 slides on the lower surface of the guide plates 1804 on both sides; while only the middle part of the guide plate 1804 on the middle side is fixed to the upper surface of the conveyor platform 1801, and the lower surface of the other parts is slidably connected to the conveyor belt 1802.

[0054] Workflow: The middle frame is continuously conveyed by the unloading assembly line 1 and moves along the outer wall of the arc plate 2 to the conveyor belt 1802. The laser displacement sensor 19 detects the passing signal of the middle frame and sends the signal to the controller 1002, which causes the motor 1806 to drive the swing plate 1805 to swing. When the middle frame moves to the position of the through-beam photoelectric sensor 1807, it triggers the receiver 1808, which causes the fourth electric push rod 1809 to push the connecting plate 1810. The rotating rod 1811 drives the docking plate 1812 to move. The docking plate 1812 drives the adjusting plate 1813 and the third elastic element 1814 to correct the deviation. After the deviation is corrected, the middle frame is pushed onto the mounting plate 1001.

[0055] At this time, the positioning reference block 1004 is limited and the cylinder 1011 pushes the arc-shaped piece 1013 to press the middle frame tightly against the positioning reference block 1004, and the vacuum generator 1003 draws air through the air extraction pipe 1012, so that the middle frame is stably adsorbed on the fixture mounting plate 1001. The fixture mounting plate 1001 slides and cooperates with the laser marking laser head 12, the laser engraving AOI inspection lens 14 and the laser engraving AOI inspection camera 13 to perform marking and inspection.

[0056] The precision positioning component 10, which completes the marking and inspection, is triggered by the first pressure sensor 1006, causing the second electric push rod 16 to push the push block 17, pushing the middle frame out of the fixture mounting plate 1001. The inclined surface of the push block 17 supports the middle frame and sends it into the unloading production line 1 for unloading.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser marking device for processing a mid-frame, comprising a material unloading production line (1), characterized in that, The inner wall of the unloading assembly line (1) is equipped with an arc-shaped plate (2), and the outer wall of the unloading assembly line (1) is fixed with a support plate (3). AOI gantry (4) and laser marking gantry (5) are respectively fixed on the upper surface of the support plate (3). The outer walls of the AOI gantry (4) and laser marking gantry (5) are respectively fixed with a second electric slide (7) and a third electric slide (8). Lifting components (9) are fixedly installed at the output ends of both the second electric slide (7) and the third electric slide (8). Two lifting components (9) are fixed on the upper surface of the support plate (3). The first electric slide (6) is fixedly provided with a precision positioning component (10) at its output end. The first electric push rod (11) is fixedly provided at the output end of the first electric push rod (11). The laser marking laser head (12) is fixedly provided at the output end of the other set of lifting components (9). The laser engraving AOI inspection camera (13) and laser engraving AOI inspection light source (15) are fixedly provided at the output end of the other set of lifting components (9). The laser engraving AOI inspection camera (13) is provided with a laser engraving AOI inspection lens (14) on its outer wall.

2. The laser marking equipment for processing a middle frame according to claim 1, characterized in that, The upper side wall of the support plate (3) is fixedly connected to a second electric push rod (16), and the output end of the second electric push rod (16) is fixedly provided with a push block (17), and the lower outer wall of the push block (17) is inclined.

3. The laser marking equipment for processing a middle frame according to claim 2, characterized in that, The precision positioning component (10) includes a fixture mounting plate (1001), the outer wall of which is fixedly connected to the output end of the first electric slide (6), the inner wall of which is slidably connected to the outer wall of the push block (17), a vacuum generator (1003) and a controller (1002) are respectively provided on the upper surface of the support plate (3), and a positioning reference block (1004) is detachably installed on the upper surface of the fixture mounting plate (1001).

4. The laser marking equipment for processing a middle frame according to claim 3, characterized in that, A stop block (1005) is fixedly connected to the upper surface of the support plate (3). A first pressure sensor (1006) is fixedly connected to the inner wall of the stop block (1005). The outer wall of the fixture mounting plate (1001) is slidably connected to the outer wall of the stop block (1005). A hollow block (1007) is fixedly connected to the upper surface of the fixture mounting plate (1001). A guide post (1008) is fixedly connected to the inner wall of the hollow block (1007).

5. The laser marking equipment for processing a middle frame according to claim 4, characterized in that, The outer wall of the guide post (1008) is slidably connected to a first inclined block (1010), the outer wall of the first inclined block (1010) is slidably connected to the inner wall of the hollow block (1007), the upper surface of the first inclined block (1010) and the inner wall of the hollow block (1007) are fixedly connected to a first elastic element (1009), the upper surface of the fixture mounting plate (1001) is fixedly connected to a cylinder (1011), and the output end of the cylinder (1011) is fixedly provided with an arc-shaped piece (1013).

6. The laser marking equipment for processing a middle frame according to claim 5, characterized in that, The inner wall of the arc-shaped piece (1013) is fixedly connected to a fixing post (1016), and the outer wall of the fixing post (1016) is slidably connected to a second inclined block (1015). The outer wall of the second inclined block (1015) is slidably connected to the inner wall of the arc-shaped piece (1013). The upper surface of the second inclined block (1015) is fixedly connected to the inner wall of the arc-shaped piece (1013) with a second elastic element (1014). The inner wall of the fixture mounting plate (1001) is provided with an air extraction pipe (1012).

7. The laser marking equipment for processing a middle frame according to claim 1, characterized in that, The outer wall of the unloading assembly line (1) is fixedly provided with a loading component (18), and the inner wall of the unloading assembly line (1) is provided with a laser displacement sensor (19). The loading component (18) includes a conveying platform (1801). The outer wall of the conveying platform (1801) is fixedly connected to the outer wall of the unloading assembly line (1). The inner wall of the conveying platform (1801) is provided with a conveyor belt (1802). The outer wall of the conveyor belt (1802) is slidably connected to the outer wall of the fixture mounting plate (1001). The inner wall of the conveying platform (1801) is provided with a second pressure sensor (1803).

8. The laser marking equipment for processing a middle frame according to claim 7, characterized in that, The outer wall of the conveying platform (1801) is provided with a guide plate (1804). The outer wall of the conveyor belt (1802) is slidably connected to the lower surface of the guide plate (1804). The upper surface of the conveying platform (1801) is fixedly connected with a motor (1806). The output end of the motor (1806) is fixedly provided with a swing plate (1805). The outer wall of the swing plate (1805) is slidably connected to the outer wall of the middle guide plate (1804). The outer wall of the swing plate (1805) is slidably connected to the side wall of the conveying platform (1801) near the second pressure sensor (1803). The inner walls of the guide plates (1804) on both sides are provided with through-beam photoelectric sensors (1807). The inner wall of the middle guide plate (1804) is provided with a receiver (1808).

9. A laser marking device for processing a middle frame according to claim 8, characterized in that, A fourth electric push rod (1809) is fixedly connected to the upper surface of the conveying platform (1801). A connecting plate (1810) is fixedly installed at the output end of the fourth electric push rod (1809). The lower surface of the connecting plate (1810) is slidably connected to the inner wall of the conveying platform (1801). A rotating rod (1811) is rotatably connected to the inner wall of the connecting plate (1810). A docking plate (1812) is rotatably connected to the outer wall of the rotating rod (1811). A positioning column (1815) is slidably connected to the inner wall of the docking plate (1812). The outer wall of the positioning column (1815) is fixedly connected to the inner wall of the guide plate (1804). An adjusting plate (1813) is slidably connected to the inner wall of the docking plate (1812).

10. A laser marking device for processing a middle frame according to claim 9, characterized in that, A third elastic element (1814) is fixedly connected between the outer wall of the adjusting plate (1813) and the inner wall of the docking plate (1812). A right-angle block (1816) is fixedly connected to the outer wall of the docking plate (1812) near the rotating rod (1811). The outer wall of the right-angle block (1816) is slidably connected to the inner wall of the conveying platform (1801). A rack (1817) is fixedly connected to the outer wall of the right-angle block (1816). A gear (1818) is rotatably connected to the inner wall of the conveying platform (1801). The tooth end of the gear (1818) is meshed with the tooth end of the rack (1817).

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