VC copper sheet flattening and sealing machine

Abstract

The application discloses a heat dissipation VC copper sheet flattening sealing machine and belongs to the field of heat dissipation element processing equipment. The machine comprises an equipment table, a receiving and feeding area, multiple groups of multi-shaft mechanical arms, a pressure closing unit, an electric resistance welding unit, an ultrasonic detection unit and a cutting and sealing unit. The receiving and feeding area is arranged on the two sides of the equipment table and is used for feeding and receiving materials. The mechanical arms drive the material taking gripper to transfer VC heat plates among the units. The pressure closing unit physically flattens the liquid injection channels. The electric resistance welding unit performs fusion sealing. The ultrasonic detection unit performs nondestructive flaw detection on the welding area. The cutting and sealing unit cuts the excess liquid injection channels and seals them by laser. The machine integrates multiple processes such as flattening, welding, detection, cutting and sealing, realizes full-automatic production, significantly improves production efficiency and sealing quality, reduces labor cost and ensures product yield.

Description

Technical Field

[0001] This disclosure relates to the field of heat dissipation element processing equipment, and more specifically, to a heat dissipation VC copper sheet flattening and sealing machine. Background Technology

[0002] A vapor chamber (VC) is a vacuum chamber with a finely structured inner wall, typically made of oxygen-free copper and filled with pure water as the working fluid. It is widely used for heat dissipation in electronic products. It has a flat, plate-like appearance, consisting of two tightly sealed cover plates, with internal copper pillars for support. Figure 1 As shown, in the existing production process, after liquid is injected into the plate through the injection channel, a plug is inserted to temporarily block it, and then a pressure device is used to flatten and close the injection channel. After passing inspection, the excess portion of the injection channel needs to be cut off to complete the final sealing. The above process involves multiple independent steps and workstations, requiring manual transfer and operation between each step, resulting in repetitive and cumbersome processes, high labor costs, low production efficiency, and large production space requirements. Therefore, there is an urgent need for a processing equipment that can integrate the above functions and achieve automated continuous operation. Summary of the Invention

[0003] The present invention aims to provide a heat dissipation VC copper sheet flattening and sealing machine to solve the problems of existing VC heat dissipation plate sealing process relying on manual labor, fragmented process and low efficiency.

[0004] To achieve the above objectives, the present invention provides a heat dissipation VC copper sheet flattening and sealing machine, comprising a machine platform, and further comprising: a receiving and feeding area disposed on both sides of the machine platform for storing VC heat exchange plates to be processed and processed heat exchange plates respectively; multiple sets of multi-axis robotic arms arranged at intervals on the machine platform, each with a material-grabbing gripper at its output end for grasping and transferring VC heat exchange plates; a pressure closing unit disposed on the machine platform and close to the feeding side for flattening and sealing the liquid injection channels of the VC heat exchange plates; and a resistance welding unit disposed on the machine platform and adjacent to the pressure closing unit. The equipment includes a force-closing unit for resistance welding of the flattened injection channels; an ultrasonic testing unit, located on the equipment platform and adjacent to the resistance welding unit, for detecting internal defects in the welded VC heat exchange plate; and a cutting and sealing unit, located on the equipment platform and adjacent to the ultrasonic testing unit, for cutting off excess injection channels on the VC heat exchange plate and sealing the cut edges. The multi-axis robotic arm sequentially transfers the VC heat exchange plate between the feeding and receiving area, the force-closing unit, the resistance welding unit, the ultrasonic testing unit, and the cutting and sealing unit.

[0005] Furthermore, the pressure closing unit includes a press, a placement platform, a liftable pressure head, a bracket, and a contoured placement plate slidably mounted on the bracket; the contoured placement plate is provided with a groove for accommodating the VC heat spreader, and the lower end of the pressure head is provided with a protrusion for flattening the injection channel.

[0006] Furthermore, the pressure closing unit also includes a first linear actuator and a lifting push block and a suction cup disposed at its movable end; the contour placement plate has a first passage opening, the suction cup can pass through the first passage opening to adsorb the VC heat spreader plate, and under the drive of the first linear actuator, it is transferred to the resistance welding unit.

[0007] Furthermore, the resistance welding unit includes a resistance welding machine and a limiting tray frame disposed in front of it; the limiting tray frame is provided with a second passage for the suction cup to pass through and for the VC heat spreader plate to be placed on the limiting tray frame, so that the flattened liquid injection channel is located between the welding head of the resistance welding machine and the support table.

[0008] Furthermore, the ultrasonic testing unit includes a multi-axis displacement drive device, an ultrasonic probe mounted thereon, a container for holding liquid, and a liftable platform; the liftable platform is used to support the VC heat exchange plate and immerse it in the liquid in the container for scanning and testing by the ultrasonic probe.

[0009] Furthermore, the cutting and sealing unit includes a feeding mechanism, a support plate, a cutting mechanism, and a sealing device; the feeding mechanism is used to convey the VC heat exchange plate towards the support plate; the support plate has a third through-hole for the injection channel of the VC heat exchange plate to pass through; the cutting mechanism is located on the back side of the support plate and is used to cut off the excess injection channel passing through the third through-hole; the sealing device is located at the front of the support plate and is used to weld and seal the cut.

[0010] Furthermore, the cutting mechanism includes a hydraulic push rod and a cutting blade, the cutting blade having an inclined bevel; the support plate is also provided with a pressing device opposite to the cutting mechanism, used to press the VC heat exchange plate during cutting.

[0011] Furthermore, the material handling gripper includes an electric pusher, a mounting plate, and a suction cup holder; the movable rod of the electric pusher is hinged to the mounting plate to drive the mounting plate to rotate, and the suction cup holder is disposed on the mounting plate for picking up the VC heat exchange plate.

[0012] Furthermore, the material handling gripper includes an electric gripper and an extended clamping plate disposed at its gripping end, for directly gripping the VC heat exchange plate.

[0013] Furthermore, the receiving and feeding area includes a support frame, a limiting block disposed on the top of the support frame, and a material rack placed between the limiting blocks; the material rack has material grooves on both sides for constraining the vertical placement of the VC heat exchange plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention integrates multiple processes such as flattening, resistance welding, inspection, cutting and sealing into one machine. Through a multi-axis robotic arm, it automatically completes the precise transfer of materials between each workstation, realizing fully automated continuous production, significantly reducing labor costs and improving production efficiency.

[0015] 2. First, a pressure-sealing unit is used for physical flattening, followed by resistance welding for fusion, providing double protection to ensure the sealing of the injection channel. After cutting, a laser welding machine is used for secondary sealing of the cut, further improving the reliability and consistency of the sealing.

[0016] 3. The integrated ultrasonic testing unit can perform non-destructive testing on the product during the sealing process, promptly detect internal defects or welding defects, and automatically sort them to ensure the final product qualification rate.

[0017] 4. By setting a lifting pusher and a suction cup on the first linear actuator, a seamless and smooth transition of the VC heat spreader from the pressure closing unit to the resistance welding unit is achieved. The positioning structure, such as the contour placement plate and the limiting tray frame, together with the constraint limiting components, ensures the positional accuracy of the plate during processing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the VC heat spreader plate processed according to the present invention.

[0019] Figure 2 This is a complete schematic diagram of the present invention.

[0020] Figure 3 For the present invention Figure 3 Another perspective illustration.

[0021] Figure 4 This is a schematic diagram of the material receiving and feeding area of ​​the present invention.

[0022] Figure 5 This is a schematic diagram of the first structure of the material handling gripper of the present invention.

[0023] Figure 6 This is a schematic diagram of the second structure of the material handling gripper of the present invention.

[0024] Figure 7 This is a schematic diagram of the pressure closure unit of the present invention.

[0025] Figure 8 This is a schematic diagram showing the location of the groove in this invention.

[0026] Figure 9 This is a schematic diagram of the first linear actuator, lifting push block, and suction cup of the present invention.

[0027] Figure 10 This is a schematic diagram of the resistance welding unit of the present invention.

[0028] Figure 11 For the present invention Figure 10 A schematic diagram of a multi-axis robotic arm is omitted.

[0029] Figure 12 This is a schematic diagram of the resistance welding machine of the present invention.

[0030] Figure 13 This is a schematic diagram of the ultrasonic detection unit of the present invention.

[0031] Figure 14 This is a schematic diagram showing the location of the ultrasonic probe of the present invention.

[0032] Figure 15 This is a schematic diagram of the lifting platform of the present invention.

[0033] Figure 16 This is a schematic diagram of the cutting and sealing unit of the present invention.

[0034] Figure 17 For the present invention Figure 16 Another perspective illustration.

[0035] Figure 18 This is a schematic diagram of the feeding mechanism of the present invention.

[0036] Figure 19 This is a schematic diagram of the cutting mechanism of the present invention.

[0037] The correspondence between the reference numerals and the names of the components in the attached drawings is as follows: 70-plate body, 71-injection channel, 72-plug column; 100-Equipment platform, 200-Feeding and receiving area, 300-Multi-axis robotic arm, 301-Material handling gripper, 400-Pressure closing unit, 500-Resistance welding unit, 600-Ultrasonic testing unit, 700-Cutting and sealing unit; 201-Support frame, 202-Limiting block, 203-Material rack, 204-Material trough; 302-Lifting rod, 3011-Electric push block, 3012-Mounting plate, 3013-Suction cup bracket, 3011a-Electric gripper, 3012a-Extension clamping plate; 401-Press machine, 402-Placing platform, 403-Press head, 4031-Groove, 404-Bracket, 405-Electric push rod, 406-Contour placement plate, 4061-First constraint limiting component, 4062-First passage, 407-First linear actuator, 408-Lifting push block, 409-Suction cup; 501-Resistance welding machine, 502-Platform, 503-Welding head, 504-Limiting tray frame, 5041-Second passageway; 601-Multi-axis displacement drive device, 6011-Ultrasonic probe, 602-Container, 603-Lifting platform, 6031-Lifting push rod, 6032-Lifting frame, 6033-Placement platform, 604-Defective collection box; 701-Feeding mechanism, 702-Support plate, 7021-Third passage, 703-Cutting mechanism, 704-Sealing device, 705-Pressing device, 706-Waste collection box, 7011-Second linear actuator, 7012-Placement platform, 7013-Second constraint limiter, 7031-Hydraulic push rod, 7032-Cutter blade, 7033-Beveled blade, 7041-Longitudinal and transverse pushers, 7042-Laser welding machine. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all structures. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] Please see Figures 1 to 19This embodiment provides a heat dissipation VC copper sheet flattening and sealing machine for automatically sealing the injection channel 71 of a VC heat spreader plate (hereinafter referred to as plate 70) that has been injected with liquid and has a plug inserted 72. The equipment includes: a machine platform 100, a material receiving and feeding area 200, multiple sets of multi-axis robotic arms 300, a pressure closing unit 400, a resistance welding unit 500, an ultrasonic testing unit 600, and a cutting and sealing unit 700.

[0041] The equipment platform 100 serves as the supporting frame for the entire machine, constructed from an aluminum profile frame and a steel plate tabletop, and is divided into upper and lower layers. The upper tabletop is used to install the various processing units, while the lower internal space is used to install the PLC controller, pneumatic control valve assembly, power supply module, and electrical wiring. The advantages of this layered structure are: isolating the mechanical moving parts from the control electrical components, avoiding vibration interference and liquid splash damage to electrical components, and facilitating maintenance.

[0042] The material receiving and feeding areas 200 are located on the left and right sides of the equipment platform 100, as shown in the reference. Figure 2 As shown in the diagram, the left side is the feeding area and the right side is the receiving area. Four sets of multi-axis robotic arms 300 are arranged at equal intervals and fixed on the table surface of the equipment platform 100. The multi-axis robotic arms 300 are either four-axis SCARA robotic arms or six-axis articulated robotic arms, and their end effectors, namely the lifting rods 302, are equipped with material-grabbing grippers 301. The function of the multi-axis robotic arms 300 is to, according to the preset PLC control program, sequentially move the plate 70 from the feeding area to the pressure closing unit 400, the resistance welding unit 500, the ultrasonic testing unit 600, and the cutting and sealing unit 700, and finally move the finished product to the receiving area. The arrangement and sequence of the robotic arms constitute a continuous automated production line, which has the following advantages: each station operates in parallel, the robotic arms can immediately pick up the finished product from the previous station and send it to the next station, the cycle time is short, and the production efficiency is high.

[0043] like Figure 4 As shown, the material receiving and feeding area 200 includes a support frame 201, limiting blocks 202, and a material rack 203. The support frame 201 is assembled from aluminum profiles, and its bottom is fixed to the two sides of the table surface of the equipment platform 100 by bolts. On both sides of the top plane of the support frame 201, two limiting blocks 202 are symmetrically fixed by screws. The distance between the two limiting blocks 202 matches the width of the material rack 203 (the gap is 0.5-1mm), forming an insertion positioning groove. The material rack 203 is a rectangular frame with an opening at the top. Multiple parallel material grooves 204 are opened vertically on the inner walls of its left and right sides. The width of the material grooves 204 is 0.5-1.2mm larger than the thickness of the plate 70. The plate 70 is inserted vertically into the material grooves 204, and adjacent plates 70 are separated by the side walls of the material rack 203.

[0044] To adapt to the material handling posture requirements of different workstations, the material handling gripper 301 is configured with two interchangeable structures, which are installed on different multi-axis robotic arms 300 respectively.

[0045] The first structure (used in the material receiving and unloading area): [Example] Figure 5 As shown, the system includes an electric pusher block 3011, a mounting plate 3012, and a suction cup holder 3013. The upper end of the housing of the electric pusher block 3011 is fixedly connected (threaded connection) to the end of the lifting rod 302 of the multi-axis robotic arm 300 via a flange. The front end of the movable rod of the electric pusher block 3011 is hinged to one end of the mounting plate 3012 via a hinge shaft, while the side wall of the housing of the electric pusher block 3011 is hinged to the middle of the mounting plate 3012 via a hinge support. The other end of the mounting plate 3012 is fixed to the suction cup holder 3013 with screws, and 4-8 rubber suction cups are mounted on the suction cup holder 3013. When the movable rod of the electric pusher block 3011 extends, the mounting plate 3012 rotates around the two hinge points at a 90° angle. This allows the vertically inserted plate 70 to be adsorbed and rotated to a horizontal position to accommodate the horizontal placement requirements of all subsequent workstations.

[0046] The second structure (used for intermediate horizontal transfer stations): as follows Figure 6 As shown, the device includes an electric gripper 3011a and an extension clamping plate 3012a. The upper end of the housing of the electric gripper 3011a is fixedly connected to the lifting rod 302. An extension clamping plate 3012a is fixed to the ends of the two gripping fingers of the electric gripper 3011a by screws. The inner surfaces of the two extension clamping plates 3012a have anti-slip textures. For the plate 70 already in a horizontal position, the direct gripping method is simple, has a large gripping force, high positioning accuracy, and eliminates the need for flipping, thus improving transfer stability.

[0047] like Figures 7 to 9 As shown, the pressure closing unit 400 includes a press 401, a bracket 404, an electric push rod 405, a contour placement plate 406, a first constraint limiting member 4061, a first linear driver 407, a lifting push block 408, and a suction cup 409.

[0048] Press 401 is a hydraulic press, its body fixed to the table surface of equipment platform 100 by bolts. A bracket 404 is fixedly installed at the front of press 401, and a linear guide rail is provided on the top of bracket 404. The contouring plate 406 is a rectangular plate, and its lower surface is slidably engaged with the linear guide rail on bracket 404 by sliders on both sides. The housing of electric push rod 405 is fixed between bracket 404 and contouring plate 406, and the front end of the movable rod of electric push rod 405 is fixedly connected to contouring plate 406. When electric push rod 405 extends or retracts, contouring plate 406 slides back and forth on bracket 404. The upper surface of contouring plate 406 has a groove that matches the outline of plate 70, which is used for initial horizontal positioning of plate 70.

[0049] Two first constraint limiting members 4061 are installed on both sides of the groove of the contour placement plate 406. Each first constraint limiting member 4061 consists of a miniature cylinder and a rubber pressure block fixed to the end of the cylinder's movable rod. The housing of the miniature cylinder is fixed to the contour placement plate 406 by angle iron, and the movable rod faces horizontally into the groove. When the plate 70 is placed in the groove, the cylinder drives the movable rod to extend, and the rubber pressure block presses against the upper surface edge of the plate 70. The beneficial effect of this structure is that, in the subsequent flattening process, it prevents the plate 70 from tilting up or jumping out of the groove due to the impact of the pressing head 403, thus ensuring the accuracy of the flattening position.

[0050] Below the press head 403 of the press 401 is a stationary platform 402. A raised groove 4031 is located in the center of the lower end face of the press head 403. The groove 4031 has a trapezoidal cross-section, and its width matches the width of the injection channel 71 (slightly wider by 2-5 mm). When the electric push rod 405 pushes the contoured placement plate 406 directly above the platform 402, the projection of the groove 4031 completely overlaps with the injection channel 71 of the plate 70. The press 401 drives the press head 403 to press down, and the groove 4031 flattens the area of ​​the injection channel 71. The direct beneficial effect of this flattening action is that it physically deforms the upper and lower walls of the injection channel 71 to fit tightly together, eliminating internal gaps and achieving a preliminary seal.

[0051] A first through-hole 4062 is provided in the center of the contour placement plate 406. The first through-hole 4062 is a rectangular through hole. The first linear actuator 407 is an electric lead screw linear module, which is laid on the table surface of the equipment platform 100. One end of it is located below the pressure closing unit 400, and the other end extends to the bottom of the resistance welding unit 500. A lifting push block 408 is fixedly installed on the slide of the first linear actuator 407. The lifting push block 408 is a miniature cylinder or electric push rod, with its movable rod pointing vertically upward. A suction cup 409 is fixedly installed at the end of the movable rod. The suction cup 409 is a flat vacuum suction cup, and the size of the suction cup 409 is smaller than the size of the first through-hole 4062.

[0052] After the injection channel 71 is flattened, the lifting pusher 408 drives the suction cup 409 to rise, passing through the first through-hole 4062. The upper surface of the suction cup 409 contacts and adheres to the lower surface of the plate 70. Subsequently, the first linear actuator 407 is activated, driving the lifting pusher 408, the suction cup 409, and the adhered plate 70 forward toward the resistance welding unit 500, transferring the plate 70 from the pressure closing unit 400 to the resistance welding unit 500. The advantages of this transfer mechanism are: it can automatically complete the transition from the flattening station to the welding station without the intervention of a multi-axis robotic arm, shortening the transfer time, and the suction cup adhering from the bottom will not interfere with the already flattened injection channel 71.

[0053] like Figures 10 to 12 As shown, the resistance welding unit 500 includes a resistance welding machine 501 and a limiting tray frame 504. The limiting tray frame 504 is a rectangular steel frame, fixed to the table surface of the equipment platform 100 by support columns. A second access port 5041 is provided on the upper surface of the limiting tray frame 504, the position and size of which correspond to the first access port 4062. The extension path of the first linear actuator 407 passes directly below the second access port 5041.

[0054] When the first linear actuator 407 transports the plate 70 on the suction cup 409 to directly above the second passage 5041, the lifting push block 408 descends, and the suction cup 409, carrying the plate 70, passes through the second passage 5041 until the lower surface of the plate 70 smoothly lands on the upper surface of the limiting tray 504. At this time, the suction cup 409 releases the vacuum and continues to descend a certain distance (3-5mm), disengaging from the plate 70. The upper surface of the limiting tray 504 is provided with a limiting stop to ensure that when the plate 70 stops, its flattened liquid injection channel 71 is exactly in the center of the gap between the welding head 503 and the support table 502 of the resistance welding machine 501.

[0055] The resistance welding machine 501 is an energy storage type resistance welding machine. Its support platform 502 is fixed to the side of the limiting support frame 504, and the welding head 503 is installed on the movable end of the vertical cylinder of the resistance welding machine 501. After the plate 70 is positioned, the resistance welding machine 501 drives the welding head 503 to press down. The welding head 503 and the support platform 502 together clamp the flattened liquid injection channel 71 area and apply a burst of high current. The heat generated by the contact resistance is used to fuse the upper and lower copper layers together. The beneficial effect of this resistance welding is that it completely eliminates the risk of elastic recovery that may exist in simple physical flattening, and forms a permanent airtight seal through fusion welding, which significantly improves the reliability of the seal.

[0056] like Figures 13 to 15 As shown, the ultrasonic testing unit 600 includes a multi-axis displacement drive device 601, an ultrasonic probe 6011, a container 602, a lifting platform 603, and a defect collection box 604.

[0057] The multi-axis displacement drive device 601 is an XYZ three-axis gantry-type linear module, fixed to the platform of the equipment stage 100 by columns. An ultrasonic probe 6011 is mounted at the end of its Z-axis slide. The container 602 is a stainless steel water tank, its bottom fixed to the platform of the equipment stage 100, located within the stroke range of the multi-axis displacement drive device 601. The container 602 contains pure water as the ultrasonic coupling medium.

[0058] The lifting platform 603 includes a lifting push rod 6031, a lifting frame 6032, and a storage platform 6033. The lifting push rod 6031 is an electric push rod or a hydraulic cylinder, its housing fixed to the lower frame of the equipment platform 100, with the movable rod passing vertically upward through a clearance hole on the surface of the equipment platform 100. The lifting frame 6032 is an I-beam steel frame, its center fixedly connected to the end of the movable rod of the lifting push rod 6031. The storage platform 6033 is a perforated mesh plate, fixed to the upper sides of the lifting frame 6032. The storage platform 6033 is located directly above the container 602, its initial position higher than the upper edge of the container 602.

[0059] During inspection, the second multi-axis robotic arm 300 places the resistance-welded plate 70 onto the platform 6033. The PLC controller issues a command, causing the lifting push rod 6031 to retract, lowering the lifting frame 6032 and the platform 6033, completely immersing the plate 70 in the pure water of the container 602. Subsequently, the multi-axis displacement drive device 601 drives the ultrasonic probe 6011 along the XYZ trajectory to perform C-scan or B-scan on the flattened welded area of ​​the plate 70. The scan signals are transmitted to the ultrasonic analyzer in real time. If internal cracks, lack of fusion, or other defects are detected, the plate is deemed unqualified; if no abnormal signals are detected, it is deemed qualified.

[0060] After the inspection is completed, the lifting push rod 6031 rises, exposing the plate 70 above the water surface. The third multi-axis robotic arm 300 sorts the products according to the inspection results: qualified products are taken away and transferred to the cutting and sealing unit 700; unqualified products are placed in the defective collection box 604 (placed within the reach of the multi-axis robotic arm 300). The beneficial effects of this online ultrasonic inspection are: 100% inspection of welding quality without damaging the product, effectively intercepting defective products and preventing them from flowing into subsequent processes, thus avoiding waste of materials and time.

[0061] like Figures 16 to 19 As shown, the cutting and sealing unit 700 includes a feeding mechanism 701, a support plate 702, a cutting mechanism 703, a pressing device 705, and a sealing device 704.

[0062] The feeding mechanism 701 includes a second linear actuator 7011 and a platform 7012. The second linear actuator 7011 is an electric lead screw module, horizontally fixed to the table surface of the equipment platform 100 along the Y-axis. The platform 7012 is slidably mounted on the second linear actuator 7011 and is driven by the actuator to move along the Y-axis. The upper surface of the platform 7012 is provided with a groove and two second constraint limiting members 7013. The structure of the second constraint limiting member 7013 is the same as that of the first constraint limiting member 4061 (a miniature cylinder drives a rubber pressure block), used to fix the plate 70.

[0063] The support plate 702 is a vertical steel plate, fixed to the table surface of the equipment platform 100 by a base, located in front of the moving path of the feeding mechanism 701 (positive Y-axis direction). A third passage 7021 is provided at the lower part of the support plate 702. The third passage 7021 is a rectangular hole, the height and width of which are greater than the cross-sectional dimensions of the injection channel 71. When the second linear actuator 7011 pushes the platform 7012 towards the support plate 702, part of the injection channel 71 of the plate body 70 passes through the third passage 7021 and extends to the other side of the support plate 702, with the bottom of the plate body 70 contacting the bottom edge of the third passage 7021.

[0064] The cutting mechanism 703 is fixedly installed on the back side of the support plate 702, and includes a hydraulic push rod 7031 and a cutting blade 7032. The housing of the hydraulic push rod 7031 is fixedly connected to the back of the support plate 702 via a bracket, with the movable rod pointing vertically downwards. The upper end of the cutting blade 7032 is fixedly connected to the end of the movable rod of the hydraulic push rod 7031, and the rear side of the cutting blade 7032 slides against a vertical guide rail fixed to the back of the support plate 702 via a slider. The lower cutting edge of the cutting blade 7032 is a beveled edge 7033, meaning the cutting edge plane forms an angle of 15°-30° with the horizontal plane. The beneficial effect of this beveled edge structure is that the cutting edge gradually contacts the material being cut during cutting, resulting in concentrated shear stress, making it easier to cut copper materials than a flat edge, and producing a clean cut.

[0065] The pressing device 705 is fixedly installed on the front side (negative Y-axis direction side) of the support plate 702, opposite to the cutting mechanism 703. The pressing device 705 includes a horizontal cylinder and a pressure plate fixed to the end of the cylinder's movable rod. Before cutting, the cylinder drives the pressure plate to extend forward and press against the upper surface of the plate 70. The beneficial effect of the pressing device 705 is to counteract the upward lifting force generated when the cutting blade 7032 cuts downward, prevent the plate 70 from deforming or shifting, and ensure cutting accuracy.

[0066] The sealing device 704 is located directly in front of the support plate 702 and includes a longitudinal and transverse thruster 7041 and a laser welder 7042. The longitudinal and transverse thruster 7041 is composed of two linear modules, X-axis and Y-axis, stacked together to form a two-dimensional moving platform, the base of which is fixed to the table surface of the equipment platform 100. The laser welder 7042 is fixedly installed at the movable end of the longitudinal and transverse thruster 7041, with its laser emission port horizontally facing the support plate 702.

[0067] After cutting, the cut waste falls into the waste collection box 706 below. Then, the longitudinal and transverse propellers 7041 drive the laser welder 7042 to move, positioning its laser emission port directly above the cut in the liquid injection channel 71. The laser welder 7042 emits pulsed laser light to perform circumferential sealing welding on the cut. The beneficial effects of this laser sealing are: the exposed copper layer after cutting is fresh and clean; the laser welding energy is concentrated, the heat-affected zone is small, and a dense fusion sealing layer can be quickly formed, completely completing the final sealing.

[0068] The above units work together in the following sequence: The first multi-axis robotic arm 300 picks up the material from the feeding area, flips it, and puts it into the pressure closing unit 400; The pressure closing unit 400 completes the flattening and is automatically transferred to the resistance welding unit 500 via the first linear driver 407 and the suction cup 409. Resistance welding unit 500 completes the fusion sealing; The second multi-axis robotic arm 300 moves the plate 70 into the ultrasonic testing unit 600, and after passing the test, it is taken out by the third multi-axis robotic arm 300. The third multi-axis robotic arm 300 places the qualified products into the cutting and sealing unit 700 to complete the cutting and laser sealing; The fourth multi-axis robotic arm 300 transfers the finished product to the receiving area.

[0069] All of the above actions are automatically coordinated and executed by the PLC controller according to the set timing sequence.

[0070] This equipment integrates five processes—flattening, welding, inspection, cutting, and final sealing—into a single machine. Through robotic arms and automated conveying devices, it achieves fully automated, continuous production, significantly improving efficiency compared to manual, sequential operations. It also eliminates human error and ensures consistent sealing quality. The dual sealing structure of pressure closure and resistance welding, combined with laser secondary sealing after cutting, forms a triple-layer sealing defense. Ultrasonic online inspection enables closed-loop quality control, preventing defective products from leaving the factory.

[0071] The above-described embodiments are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A heat dissipation VC copper sheet flattening and sealing machine, comprising a machine platform (100), characterized in that, Also includes: The receiving and feeding area (200) is located on both sides of the equipment platform (100) and is used to store the VC heat exchange plates to be processed and the processed ones, respectively. Multiple sets of multi-axis robotic arms (300) are arranged at intervals on the table of the equipment platform (100), and their output ends are equipped with material handling grippers (301) for gripping and transferring VC heat exchange plates; A pressure closing unit (400) is disposed on the equipment platform (100) and close to the feeding side, for flattening and closing the liquid injection channel (71) of the VC heat exchange plate; Resistance welding unit (500), disposed on the equipment platform (100) and adjacent to the pressure closing unit (400), is used to perform resistance welding on the flattened liquid injection channel (71); An ultrasonic testing unit (600) is disposed on the equipment platform (100) and adjacent to the resistance welding unit (500) for detecting whether there are internal defects in the welded VC heat exchange plate; as well as A cutting and sealing unit (700) is disposed on the equipment platform (100) and adjacent to the ultrasonic testing unit (600) for cutting off excess liquid injection channels (71) on the VC heat exchange plate and sealing and welding the cut. The multi-axis robotic arm (300) transfers the VC heat spreader plate sequentially between the receiving and feeding area (200), the pressure closing unit (400), the resistance welding unit (500), the ultrasonic testing unit (600), and the cutting and sealing unit (700).

2. The heat dissipation VC copper sheet flattening and sealing machine according to claim 1, characterized in that, The pressure closing unit (400) includes a press (401), a placement platform (402), a liftable pressure head (403), a bracket (404), and a contoured placement plate (406) slidably mounted on the bracket (404); the contoured placement plate (406) is provided with a groove for accommodating the VC heat spreader, and the lower end of the pressure head (403) is provided with a protrusion (4031) for flattening the injection channel (71).

3. The heat dissipation VC copper sheet flattening and sealing machine according to claim 2, characterized in that, The pressure closing unit (400) further includes a first linear actuator (407) and a lifting push block (408) and a suction cup (409) disposed at its movable end; the contour placement plate (406) is provided with a first passage (4062), and the suction cup (409) can pass through the first passage (4062) to adsorb the VC heat exchange plate, and under the drive of the first linear actuator (407), it is transferred to the resistance welding unit (500).

4. The heat dissipation VC copper sheet flattening and sealing machine according to claim 3, characterized in that, The resistance welding unit (500) includes a resistance welding machine (501) and a limiting tray frame (504) disposed in front of it; the limiting tray frame (504) has a second passage (5041) for the suction cup (409) to pass through and place the VC heat spreader on the limiting tray frame (504), so that the flattened liquid injection channel (71) is located between the welding head (503) of the resistance welding machine (501) and the support platform (502).

5. The heat dissipation VC copper sheet flattening and sealing machine according to claim 1, characterized in that, The ultrasonic testing unit (600) includes a multi-axis displacement drive device (601), an ultrasonic probe (6011) mounted thereon, a container (602) for holding liquid, and a liftable platform (603); the liftable platform (603) is used to support the VC heat spreader and immerse it in the liquid in the container (602) for the ultrasonic probe (6011) to perform scanning detection.

6. The heat dissipation VC copper sheet flattening and sealing machine according to claim 1, characterized in that, The cutting and sealing unit (700) includes a feeding mechanism (701), a support plate (702), a cutting mechanism (703), and a sealing device (704). The feeding mechanism (701) is used to convey the VC heat spreader towards the support plate (702); The support plate (702) is provided with a third passage (7021) for the liquid injection channel (71) of the VC heat spreader to pass through; The cutting mechanism (703) is located on the back side of the support plate (702) and is used to cut the excess liquid injection channel (71) passing through the third through port (7021). The sealing device (704) is located directly in front of the support plate (702) and is used to weld and seal the cut surface after cutting.

7. The heat dissipation VC copper sheet flattening and sealing machine according to claim 6, characterized in that, The cutting mechanism (703) includes a hydraulic push rod (7031) and a cutting blade (7032), the cutting edge of which is an inclined oblique blade (7033); the support plate (702) is also provided with a pressing device (705) opposite to the cutting mechanism (703), which is used to press the plate body of the VC heat exchange plate during cutting.

8. The heat dissipation VC copper sheet flattening and sealing machine according to claim 1, characterized in that, The material handling gripper (301) includes an electric pusher (3011), a mounting plate (3012), and a suction cup holder (3013); the movable rod of the electric pusher (3011) is hinged to the mounting plate (3012) to drive the mounting plate (3012) to rotate; the suction cup holder (3013) is disposed on the mounting plate (3012) for picking up the VC heat exchanger plate.

9. The heat dissipation VC copper sheet flattening and sealing machine according to claim 1, characterized in that, The material handling gripper (301) includes an electric gripper (3011a) and an extended gripper (3012a) disposed at its gripping end, for directly gripping the VC heat exchanger plate.

10. The heat dissipation VC copper sheet flattening and sealing machine according to claim 1, characterized in that, The receiving and feeding area (200) includes a support frame (201), a limiting block (202) set on the top of the support frame (201), and a material rack (203) placed between the limiting blocks (202); the material rack (203) has material troughs (204) on both sides of its side walls for constraining the vertical placement of the VC heat exchange plate.

Images