Ultrathin vapor chamber laser ablation and welding all-in-one machine

Abstract

The invention discloses an ultra-thin vapor chamber laser ablation welding all-in-one machine, and relates to the technical field of ultra-thin vapor chamber laser ablation welding processing, and the ultra-thin vapor chamber laser ablation welding all-in-one machine comprises a horizontal displacement mechanism which is arranged on a machine body and can movably carry an ultra-thin vapor chamber blank; the laser ablation mechanism and the laser welding mechanism are arranged on the edge of the workbench side by side, the laser ablation mechanism is connected with an ablation laser head, and the laser welding mechanism is connected with a welding laser head; the mechanical arm is fixedly mounted on the workbench, is provided with an end effector, and is used for realizing feeding and discharging of the blank on the horizontal displacement mechanism; the control host is installed in the machine body, connected with the horizontal displacement mechanism, the laser ablation mechanism, the laser welding mechanism and the mechanical arm and used for adjusting the position of the blank relative to the two laser heads and achieving feeding and discharging of the blank. The laser ablation and laser welding processes are integrated on the same working table, the functionality of equipment is improved, and the laser ablation and laser welding integrated machine has the advantages of being high in production efficiency, high in product quality, short in production period and the like.

Description

Technical Field

[0001] The invention relates to the technical field of ultra-thin vapor chamber laser ablation welding all-in-one machine processing, and in particular to an ultra-thin vapor chamber laser ablation welding all-in-one machine. Background Art

[0002] As an efficient heat transfer component, the ultra-thin heat spreader uses the principle of efficient phase change heat conduction to achieve rapid heat transfer through the evaporation and condensation cycle of the working fluid inside. Its notable feature is its ultra-thin design, with an extreme thickness of 0.25mm to 0.3mm, which perfectly meets the dual pursuit of light and thin appearance and efficient heat dissipation of modern electronic devices. The heat spreader is mainly composed of core components such as the shell, vacuum cavity, liquid wick and working fluid. It is not only compact in structure but also has good sealing performance, ensuring stable operation in various harsh environments, and providing solid and reliable heat dissipation guarantee for high-performance, highly integrated and miniaturized electronic devices.

[0003] In the field of ultra-thin vapor chamber laser processing, laser ablation and laser welding are two important processes: Laser ablation is an advanced technology used in the manufacturing process of vapor chambers. It uses the high energy density and precise control ability of lasers to micro-process vapor chamber materials to form the required microchannel structure. After laser ablation, the performance of the wick will be improved in many aspects: since laser ablation can accurately control the microstructure and form channels and pores that are conducive to liquid transmission, the capillary performance of the wick is significantly improved; laser ablation technology can accurately control the processing depth to form complex three-dimensional microstructures, such as porous structures and micro-channels. These structures can increase the specific surface area of ​​the wick, provide more liquid adsorption and transmission channels, and thus improve the liquid transmission efficiency of the wick; the surface quality of the wick after laser ablation is usually high, with the characteristics of smooth surface, no cracks, and no burrs. The high-quality surface is conducive to the uniform distribution and rapid transmission of liquid, reducing the retention and blockage of liquid in the wick; and laser ablation has the characteristics of fast processing speed and high efficiency, and also has high processing flexibility, and can design wick structures of different shapes and sizes according to different application requirements.

[0004] Laser welding is a welding method that uses a laser beam as a heat source to locally heat the material to be welded to a molten state, and then quickly cools and solidifies to form a weld. In the manufacture of heat spreaders, laser welding is mainly used to seal and weld the upper and lower shell plates of highly thermally conductive metal sheets to form a vacuum cavity two-phase heat conduction device that contains a trace amount of working fluid. Laser welding can achieve very fine welding, and is particularly suitable for heat spreaders of ultra-thin scale and complex shapes. This high-precision welding ensures the accuracy of the internal structure of the heat spreader and helps to improve the overall performance of the heat spreader. At the same time, laser welding has the characteristics of high energy density and short action time, which means that during the welding process, the area around the heat spreader material is less affected by heat, avoiding the performance degradation caused by material deformation, thereby maintaining the high thermal conductivity of the heat spreader. The benefits of heat spreader laser welding are also reflected in high airtightness, clean process, automation and high efficiency, wide material adaptability, high repeatability, etc. These advantages have made laser welding technology widely used in heat spreader manufacturing and promoted the continuous improvement of heat spreader performance and production efficiency.

[0005] In traditional processing methods, these two main processes usually require multiple independent devices or processes to complete. This decentralized processing method has the following defects: 1. It takes up a lot of production space and increases the time cost of material transfer and waiting; (2) Reduced production efficiency; (3) The quality of the product is difficult to control, which can easily lead to reduced processing accuracy; (IV) Increased safety hazards in the workshop.

[0006] In view of this, in order to overcome the above technical problems, the present invention designs an ultra-thin heat sink laser ablation welding all-in-one machine to solve the above problems. Summary of the invention

[0007] The present invention aims to at least improve one of the technical problems existing in the prior art. To this end, the present invention proposes an ultra-thin heat sink laser ablation welding integrated machine.

[0008] An ultra-thin heat sink laser ablation welding all-in-one machine, comprising: A machine body, wherein a workbench is installed on the upper surface of the machine body; A horizontal displacement mechanism is fixedly mounted on the workbench, and the horizontal displacement mechanism can move the wool material carrying the ultra-thin heat spreader; A laser ablation mechanism is installed on a workbench on one side of the horizontal displacement mechanism, and the laser ablation mechanism is connected to an ablation laser head; A laser welding mechanism, arranged side by side with the laser ablation mechanism on the workbench, the laser welding mechanism being connected to a welding laser head; A mechanical arm, fixedly mounted on the workbench, the mechanical arm having an end effector for loading and unloading the raw material on the horizontal displacement mechanism; The control host is installed in the machine body and connected to the horizontal displacement mechanism for adjusting the horizontal position of the raw material. The control host is respectively connected to the laser ablation mechanism and the laser welding mechanism for adjusting the positions of the ablation laser head and the welding laser head respectively. The control host is connected to the robotic arm for planning the motion trajectory of the robotic arm and performing loading and unloading actions. In a possible implementation manner of the first aspect, the horizontal displacement mechanism includes: Mounting plate; A first baffle and a second baffle are mounted on both sides of the mounting plate; A servo motor is fixedly mounted on the side of the first baffle; Two parallel slide rails are arranged on the mounting plate, and a plurality of motion guide blocks are arranged on the parallel slide rails; Two screw rod end blocks are arranged between the parallel slide rails; A ball screw is movably connected to the screw end block and passes through the screw end block to be coaxially connected to the servo motor, and a nut is installed on the ball screw; The detachable mold is installed on the motion guide block and the nut, and the detachable mold is driven to move horizontally on the parallel slide rail through the ball screw transmission nut.

[0009] The horizontal displacement mechanism also includes: A coupling and a bearing are installed at the output end of the servo motor and connected to the ball screw through a bearing; The slide rail pad is installed at the bottom of the parallel slide rail and is used to adjust the height of the ball screw so that it is consistent with the height of the servo motor output end.

[0010] In a possible implementation manner of the first aspect, the laser ablation mechanism includes: A first linear motor slide rail composed of a first bottom plate, a first stator and a first slide rail, wherein the first linear motor slide rail is vertically arranged with respect to the workbench, wherein the first slide rail and the first stator are arranged in the first bottom plate, and the first slide rail is arranged at both sides of the first stator; A second linear motor slide rail composed of a second bottom plate, a second stator, a second slide rail and a first mover is vertically nested with the first linear motor slide rail, wherein the second slide rail and the second stator are arranged in the second bottom plate, the second slide rail is arranged on both sides of the second stator, and the first mover is installed on the side wall of the second bottom plate and arranged opposite to the first stator; An ablation mounting seat, used for mounting an ablation laser head, wherein the ablation mounting seat is slidably connected to the second slide rail, and a second mover is fixedly mounted on the surface of the ablation mounting seat close to the second stator, so as to facilitate adjustment of the horizontal or vertical coordinate position of the ablation laser head in the vertical plane where the ablation laser head is located; When current passes through the coil of the stator, a magnetic field moving in a straight line is generated. This magnetic field interacts with the magnetic field in the mover to generate a force in a straight line, causing the mover to move along the slide rail. By controlling the direction and magnitude of the current in the stator coil, the direction and speed of movement of the mover can be precisely controlled.

[0011] In a possible implementation manner of the first aspect, the laser welding mechanism includes: A third linear motor slide rail, the third linear motor slide rail is vertically arranged with the workbench, and the third linear motor slide rail has the same structure as the first linear motor slide rail; A fourth linear motor slide rail is vertically nested with the third linear motor slide rail, and the fourth linear motor slide rail has the same structure as the second linear motor slide rail; The welding mounting seat is used to install the welding laser head. The welding mounting seat is slidably connected to the fourth linear motor slide rail. A second mover is fixedly installed on the surface of the welding mounting seat to facilitate the adjustment of the horizontal or vertical coordinate position of the welding laser head in the vertical plane where it is located.

[0012] In a possible implementation of the first aspect, the robotic arm is a six-degree-of-freedom robotic arm, which is used to easily complete the suction and placement of the ultra-thin heat spreader rough material and finished product.

[0013] In a possible implementation of the first aspect, a wedge is provided on the upper surface of the first slide rail; The second bottom plate near the second stator side is provided with a wedge groove, which matches the wedge block to ensure the horizontality of the second bottom plate, thereby further ensuring the accuracy of laser ablation.

[0014] In a possible implementation of the first aspect, the robotic arm and the horizontal displacement mechanism are located on the same straight line, and the working area of ​​the robotic arm is fan-shaped, and the fan-shaped angle range is 90° to 180°. While ensuring that loading and unloading can be completed, the probability and risk of increased collision due to excess rotation of the robotic arm is reduced.

[0015] In a possible implementation of the first aspect, it also includes a plurality of material boxes, which are arranged on the workbench in the fan-shaped area and are used to load the lower shell raw material, the upper shell raw material and the finished product respectively, so as to facilitate the robot arm to identify and perform corresponding loading and unloading operations.

[0016] In a possible implementation of the first aspect, when the ablation mount moves to the farthest point from the first linear motor slide rail, the ablation mount is located exactly on the trajectory of the detachable mold, which reduces the calibration requirements during ablation and is conducive to improving the ablation efficiency.

[0017] In a possible implementation of the first aspect, when the welding mount moves to the farthest point from the third linear motor slide rail, the welding mount is located exactly on the trajectory of the detachable mold, which reduces the calibration requirements during welding and helps to improve welding efficiency.

[0018] According to the ultra-thin heat spreader laser ablation and welding integrated machine of the embodiment of the present invention, the laser ablation and welding processes of the ultra-thin heat spreader are concentrated on the same work surface, so that it has the functions of laser ablation and laser welding of the ultra-thin heat spreader at the same time. Compared with independent laser ablation equipment and laser welding equipment, it has the advantages of reducing floor space and safety hazards, improving production efficiency, facilitating product quality control, shortening production time, etc.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 2 is an overall schematic diagram of an ultra-thin vapor chamber laser ablation welding integrated machine according to an embodiment of the present invention; Figure 2 2 is a schematic structural diagram of an ultra-thin vapor chamber laser ablation welding integrated machine from another perspective according to an embodiment of the present invention; Figure 3 2 is a schematic diagram of a horizontal displacement mechanism of an ultra-thin vapor chamber laser ablation welding integrated machine according to an embodiment of the present invention; Figure 4 Schematic diagram of a laser ablation mechanism and a laser welding mechanism of an ultra-thin vapor chamber laser ablation welding integrated machine according to an embodiment of the present invention; Figure 5 2 is a schematic diagram of the back of a laser ablation mechanism of an ultra-thin vapor chamber laser ablation welding integrated machine according to an embodiment of the present invention; Figure 6 yes Figure 5 A magnified schematic diagram of part A; Figure 72 is a schematic diagram of a second linear motor slide rail of an ultra-thin vapor chamber laser ablation welding integrated machine according to an embodiment of the present invention; Figure 8 Schematic diagram of the internal structure of the ultra-thin heat sink laser ablation welding machine according to an embodiment of the present invention Reference numerals: Machine body 1, horizontal displacement mechanism 2, laser ablation mechanism 3, laser welding mechanism 4, mechanical arm 5, control host 6, material box 7, ice machine 8, operation panel 9, workbench 10, display screen 11; Maintenance door 101, safety lock 1010; Mounting plate 201, first baffle 202, second baffle 203, servo motor 204, parallel slide rail 205, motion guide block 206, screw end block 207, ball screw 208, detachable mold 209, coupling 210, bearing 211, slide rail pad 212; The first linear motor slide rail 31, the first base plate 310, the first stator 311, the first slide rail 312, and the wedge block 3121; The second linear motor slide rail 32, the second bottom plate 320, the wedge groove 3201, the second stator 321, the second slide rail 322, and the first mover 323; Ablation mounting seat 33, ablation laser head 331, laser ablation host 34; A third linear motor slide rail 41 , a fourth linear motor slide rail 42 , a welding mounting seat 43 , a welding laser head 431 , and a laser welding host 44 . DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0023] It should be noted that when an element is referred to as being "fixed" to another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0025] The terms "first", "second", "third", etc. in the specification and claims of this application and the drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a series of steps or units are included, or steps or units not listed are optionally included, or other steps or units inherent to these processes, methods, products or devices are optionally included.

[0026] Only the part relevant to the present application is shown in the accompanying drawings, but not all of the content. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processing or methods depicted as flow charts. Although the flow chart describes each operation (or step) as a sequential process, many of the operations therein can be implemented in parallel, concurrently or simultaneously. In addition, the order of each operation can be rearranged. When its operation is completed, the process can be terminated, but it can also have additional steps not included in the accompanying drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0027] The terms "component", "module", "system", "unit", etc. used in this specification are used to represent computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a unit can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program, and / or distributed between two or more computers. In addition, these units can be executed from various computer-readable media having various data structures stored thereon. The unit can communicate through local and / or remote processes, for example, based on signals having one or more data packets (e.g., data from a second unit interacting with another unit in a local system, a distributed system, and / or a network. For example, the Internet interacts with other systems via signals).

[0028] In some embodiments of the present application, an ultra-thin heat sink laser ablation welding machine is provided, such as Figures 1 to 7 As shown, including: A machine body 1, wherein a workbench 10 is mounted on the upper surface of the machine body 1; A horizontal displacement mechanism 2 is fixedly mounted on the workbench 10, and the horizontal displacement mechanism 2 can move the wool material carrying the ultra-thin heat spreader; A laser ablation mechanism 3 is installed on a workbench 10 on one side of the horizontal displacement mechanism 2, and the laser ablation mechanism 3 is connected to an ablation laser head 331; A laser welding mechanism 4 is arranged side by side with the laser ablation mechanism 3 on the workbench 10, and the laser welding mechanism 4 is connected to a welding laser head 431; A mechanical arm 5 is fixedly mounted on the workbench 10, and the mechanical arm 5 has an end effector for loading and unloading the raw material on the horizontal displacement mechanism 2; The control host 6 is installed in the body 1 and connected to the horizontal displacement mechanism 2, so as to adjust the horizontal position of the raw material. The control host 6 is connected to the laser ablation mechanism 3 and the laser welding mechanism 4 respectively, so as to adjust the positions of the ablation laser head 331 and the welding laser head 431 respectively. The control host 6 is connected to the robot arm 5, so as to plan the motion trajectory of the robot arm 5 and perform loading and unloading actions. It should be noted that the horizontal displacement mechanism 2 includes: Mounting plate 201; The first baffle plate 202 and the second baffle plate 203 are respectively installed on both sides of the mounting plate 201; The servo motor 204 is fixedly mounted on the side of the first baffle 202, and the servo motor 204 is connected to the control host 6; Two parallel slide rails 205 are arranged on the mounting plate 201, and a plurality of motion guide blocks 206 are arranged on the parallel slide rails 205; Two screw rod end blocks 207 are disposed between the parallel slide rails 205; A ball screw 208 is movably connected to the screw end block 207 and passes through the screw end block 207 to be coaxially connected to the servo motor 204. A nut is installed on the ball screw 208; The removable mold 209 is installed on the motion guide block 206 and the nut, and the removable mold 209 is driven to translate on the parallel slide rail 205 through the ball screw 208 transmission nut, wherein the removable mold 209 can select different removable molds according to the different morphologies of the processed heat spreader.

[0029] The coupling 210 and the bearing 211 are installed at the output end of the servo motor 204 and connected to the ball screw 208 through the bearing 211; The slide rail pad 212 is installed at the bottom of the parallel slide rail 205 and is used to adjust the height of the ball screw 208 so that it is consistent with the height of the output end of the servo motor 204.

[0030] When the horizontal displacement mechanism 2 receives a command from the control host 6 and is powered on, the servo motor 204 works to rotate the ball screw 208. At the same time, the ball screw 208 and the nut under the linear motion guide block 206 are precisely threaded. When the ball screw 208 rotates, the nut moves along the axial direction of the ball screw 208. The rotation angle or speed of the ball screw 208 can be controlled by the staff operating the computer to issue a control command. In angle control, each input pulse electric signal causes the ball screw 208 to rotate an angle, that is, the linear motion guide block 206 matched with the nut and the screw moves axially a distance; when controlling the speed, the power-on sequence of the servo motor 204 is changed, that is, the rotation direction of the pulse electromagnetic field is changed, so as to control the ball screw 208 to rotate forward or reverse, and then control the detachable mold 209 to move linearly with the motion guide block 206. The staff operates the control host 6 to send instructions to the servo motor 204 of the horizontal displacement mechanism 2, so that the ultra-thin heat spreader that moves with the linear motion guide block 206 can be flexibly moved to the working area of ​​laser ablation or laser welding and can better cooperate with the movement of the ultra-thin heat spreader during laser ablation and laser welding. Compared with manual material movement, the horizontal displacement mechanism 2 cooperates with the control host 6 through precise transmission mechanism and control process, and can continuously, high-speed, and accurately perform the moving task, ensuring the accuracy and stability of material movement.

[0031] It should be noted that the laser ablation mechanism 3 includes: A first linear motor slide rail 31 composed of a first bottom plate 310, a first stator 311 and a first slide rail 312, wherein the first linear motor slide rail 31 is vertically arranged with respect to the workbench 10, wherein the first slide rail 312 and the first stator 311 are arranged in the first bottom plate 310, and the first slide rail 312 is arranged at both sides of the first stator 311; The second linear motor slide rail 32, which is composed of a second base plate 320, a second stator 321, a second slide rail 322 and a first mover 323, is vertically nested with the first linear motor slide rail 31, wherein the second slide rail 322 and the second stator 321 are arranged in the second base plate 320, the second slide rail 322 is arranged on both sides of the second stator 321, the first mover 323 is fixedly installed on the side wall of the second base plate 320, and is arranged opposite to the first stator 311, and the first mover 323 includes a permanent magnet; The ablation mounting seat 33 is used to mount the ablation laser head 331. The ablation mounting seat 33 is slidably connected to the second slide rail 322. A second mover is fixedly mounted on the surface of the ablation mounting seat 33 close to the second stator 321, so as to facilitate adjustment of the horizontal or vertical coordinate position of the ablation laser head 331 in the vertical plane where the ablation laser head 331 is located. It should be noted that when the ablation mount 33 moves to the farthest point from the first linear motor slide rail 31 , the ablation mount 33 is located exactly on the trajectory of the detachable mold 209 , which reduces the calibration requirements during ablation and is conducive to improving the ablation efficiency.

[0032] It should be noted that this embodiment also includes a water chiller 8 and a laser ablation host 34 arranged inside the body 1, and the water chiller 8 and the laser ablation host 34 are both connected to the ablation laser head 331, and the water chiller 8 and the laser ablation host 34 are both connected to the control host 6.

[0033] It should be noted that the laser ablation mechanism 3 can directly convert electrical energy into mechanical energy of linear motion without the need for an intermediate transmission mechanism. When current passes through the winding of the first stator 311 of the first linear motor slide 31, a traveling wave magnetic field is generated in the direction of the first slide 312, which interacts with the permanent magnet installed on the first mover 323, thereby pushing the first mover 323 to move linearly along the first slide 312. When laser ablation is performed, the first linear motor slide 31 is controlled to lower the second linear motor slide 32 and the ablation laser head 331 to the laser ablation working area, and the second linear motor slide 32 cooperates with the ball screw 208 and the parallel slide 205 to complete the laser ablation work.

[0034] It should be noted that the laser welding mechanism 4 includes: A third linear motor slide rail 41, wherein the third linear motor slide rail 41 is vertically arranged with respect to the workbench 10, and the third linear motor slide rail 41 has the same structure as the first linear motor slide rail 31; The fourth linear motor slide rail 42 is vertically nested with the third linear motor slide rail 41, and the fourth linear motor slide rail 42 has the same structure as the second linear motor slide rail 32; The welding mounting seat 43 is used to install the welding laser head 431. The welding mounting seat 43 is slidably connected to the fourth linear motor slide rail 42. A second mover is fixedly installed on the surface of the welding mounting seat 43 to facilitate the adjustment of the horizontal or vertical coordinate position of the welding laser head 431 in the vertical plane where it is located.

[0035] It should be noted that when the welding mounting seat 43 moves to the farthest point from the third linear motor slide rail 41, the welding mounting seat 43 is located exactly on the trajectory of the detachable mold 209, which reduces the calibration requirements during welding and is conducive to improving welding efficiency.

[0036] It should be noted that the present embodiment further includes a laser welding host 44 disposed inside the machine body 1 , and the laser welding host 44 is connected to the welding laser head 431 and the control host 6 respectively.

[0037] It should be noted that, when controlling the first linear motor slide 31 to raise the second linear motor slide 32 and the ablation laser head 331 to the highest point, the horizontal displacement mechanism 2 moves the lower shell plate of the heat spreader to the laser welding working area, the operating robot arm 5 sucks the upper shell plate of the heat spreader and places it above the lower shell plate of the heat spreader that has completed laser ablation, and the third linear motor slide 41 is controlled to lower the fourth linear motor slide 42 and the welding laser head 431 to the laser welding working area, and the fourth linear motor slide 42 cooperates with the horizontal displacement mechanism 2 to complete the laser welding work.

[0038] It should be noted that in this embodiment, the mechanical arm 5 adopts a six-degree-of-freedom mechanical arm, which is used to easily complete the absorption and placement of the raw materials and finished products of the ultra-thin heat-spreading plate, and mainly includes the following components: end effector, guide, guide handle, guide plate, end effector connector, wrist, elbow, shoulder, status light and base. The staff can enter the user interface of the mechanical arm 5 to configure the task to create a task, and input the action instructions of the mechanical arm according to the requirements of the mechanical arm control system used, including specifying the motion trajectory, absorption, placement, speed and other parameters of the mechanical arm. These instructions will control the mechanical arm to complete a specific task. After the instruction input is completed, enter the preliminary debugging to ensure that the program logic is correct. After completing this step, the mechanical arm 5 will perform no-load debugging, load debugging and safety debugging. After everything is normal, the mechanical arm 5 can perform the task and complete the absorption, transfer and placement of the material. After completing the task, the mechanical arm 5 will automatically restore the default original state according to the set program, that is, the mechanical arm 5 returns to the position facing the front. This program is used to solve the problem of returning to the position after the mechanical arm completes the task, which means that the task has been completed. The robot arm manipulation actions provided in this embodiment are exemplary and cannot be used to limit the technical solutions of this application.

[0039] It should be noted that the robotic arm 5 and the horizontal displacement mechanism 2 are located on the same straight line, and the working area of ​​the robotic arm 5 is fan-shaped, and the fan-shaped angle range is 90° to 180°. While ensuring that loading and unloading can be completed, the probability and risk of collision caused by excessive rotation of the robotic arm 5 are reduced.

[0040] Preferably, considering that the range of motion of the six-degree-of-freedom robot arm is large, there is a hidden danger of collision with the slide rail and the laser head during its working stage. We need to first determine one or more safe positions to ensure that the robot arm will not collide with other components at these positions, and then set a control instruction to automatically move the interfering components to a safe area before using the robot arm. In this embodiment, when the staff operates the control host 6 to switch to the system for controlling the robot arm, the first linear motor slide rail 31 and the third linear motor slide rail 41 that control the second linear motor slide rail 32, the fourth linear motor slide rail 42 and the two laser heads to move up and down will automatically control the second linear motor slide rail 32, the fourth linear motor slide rail 42 and the two laser heads to the highest point of the slide rail according to the set instructions, and the second linear motor slide rail 32 and the fourth linear motor slide rail 42 that control the two laser heads to move forward and backward will automatically control the two laser heads to the innermost side close to the first linear motor slide rail 31 and the third linear motor slide rail 41 according to the set instructions. This program is used to solve the interference problem when operating the robot arm. After the movement is completed, the robot arm 5 can move.

[0041] Preferably, the robot arm 5 in long-term operation may accumulate errors due to various factors. These errors can be cleared regularly by automatically restoring the original state, which helps to ensure the execution accuracy and consistency of subsequent tasks, thereby improving the overall quality of the product; automatic restoration of the original state can reduce the risk of accidents caused by improper operation; the robot arm can quickly and accurately return to its original state after completing a task, reducing the time required to adjust the robot arm and improving overall production efficiency.

[0042] It should be noted that it also includes multiple material boxes 7, which are arranged on the workbench 10 in the fan-shaped area, including a lower shell plate raw material box, an upper shell plate raw material box and a finished product box, which are used to load the lower shell raw material, upper shell raw material and finished products respectively, so as to facilitate the robot arm 5 to identify and perform corresponding loading and unloading operations.

[0043] In this embodiment, the following workflow is included: Before starting the equipment, prepare the upper and lower shell materials of the ultra-thin soaking plate and place them in the corresponding material box 7.

[0044] To avoid interference, after the equipment is started, according to the set instructions, the second linear motor slide 32 moves to the top along the first linear motor slide 31, and the fourth linear motor slide 42 also moves to the same height along the third linear motor slide 41. At the same time, the ablation laser head 331 moves along the second linear motor slide 32 to the side close to the first linear motor slide 31, and this position is set as the initial position 1. The welding laser head 431 also moves along the fourth linear motor slide 42 to the side close to the third linear motor slide 41, and this position is recorded as the initial position 2. The robot arm 5 takes a piece of raw material from the material box 7 of the lower shell plate and places it directly above the detachable mold 209. After the placement is completed, the robot arm 5 moves to the front to avoid interference, and this position is recorded as the initial position 3.

[0045] Input instructions into the operating system of the horizontal displacement mechanism 2, and control the linear motion guide block 206 carrying the detachable mold 209 and the lower shell of the ultra-thin heat spreader to move to the laser ablation working area through the servo motor 204.

[0046] Input instructions in the operating system of the laser ablation mechanism 3, and the first linear motor slide 31 drives the second linear motor slide 32 to the specified position, which is a height suitable for the ultra-thin heat spreader laser ablation wick. The ablation laser head 331 reaches above the lower shell plate of the heat spreader under the action of the second linear motor slide 32, so that the scanning area of ​​the ablation laser head 331 corresponds to the wick of the lower shell plate of the heat spreader below.

[0047] After the ablation is completed, according to the set program, the ablation laser head 331 returns to the initial position 1, that is, close to the side of the first linear motor slide rail 3.

[0048] Input the command in the robot operating system to control the robot 5 to take a piece of raw material from the material box 7 of the upper shell plate and place it on the upper part of the lower shell plate after laser ablation. After placement, the robot 5 returns to the initial position 3 to prevent interference with laser welding and waits for the next operation.

[0049] Input instructions in the laser welding operating system to call the welding laser head 431 and the fourth linear motor slide rail 42 to a suitable laser welding position.

[0050] Input instructions in the horizontal displacement mechanism operating system, and the horizontal displacement mechanism 2 drives the linear motion guide block 206 to move to the laser welding area. During laser welding, the horizontal displacement mechanism 2 and the fourth linear motor slide rail 42 are operated to cooperate with each other, so that the laser welding laser beam can complete the welding of the upper and lower shell plates of the ultra-thin heat soaking plate according to the laser welding trajectory.

[0051] After the laser welding is completed, according to the set program, the welding laser head 431 returns to the initial position 2, that is, close to the side of the third linear motor slide rail 41, and the fourth linear motor slide rail 42 rises to the highest position.

[0052] The robot arm 5 sucks the finished product out of the detachable mold 209 and places it in the material box 7 of the finished product. Then it returns to the initial position 3.

[0053] It should be noted that, the ablation laser head 331 and the welding laser head 431 in this embodiment have different requirements on laser parameters. Therefore, a high-frequency pulse laser is selected here for metal surface micro-functional structure modification, namely laser ablation. The energy of this laser is not large and the maximum laser power is fixed at 30W, the maximum line speed is ≤7000mm / s, the pulse frequency is 20kHz-80kHz, the laser wavelength is 10.64‌μm, and the ablation depth is ≤3mm. The energy required for laser welding technology is relatively large. Here, a pulsed laser welding machine is selected for welding and cutting metal and non-metallic materials. Its maximum power is 16kW, the rated power is 400W, the pulse frequency is ≤100Hz, the wavelength is 1064nm, the pulse width is 0.1ms~20ms, and the weld spot diameter is greater than 0.4mm.

[0054] The detachable mold 209 can support and fix the ultra-thin heat spreader. The detachable mold 209 moves with the motion guide block 206. The robotic arm 5 absorbs the lower shell plate of the ultra-thin heat spreader from the material box 7 of the lower shell plate and places it on the detachable mold 209. When laser ablation is performed, the first linear motor slide 31 is controlled to lower the second linear motor slide 32 and the ablation laser head 331 to the laser ablation working area. The second linear motor slide 32 cooperates with the horizontal displacement mechanism 2 to complete the laser ablation work. The first linear motor slide 31 is controlled to raise the second linear motor slide 32 and the ablation laser head 331 to the highest position, the horizontal displacement mechanism 2 moves the lower shell of the heat spreader to the laser welding work area, the robot arm 5 is operated to suck the upper shell of the heat spreader and place it above the lower shell of the heat spreader that has completed laser ablation, the third linear motor slide 41 is controlled to lower the fourth linear motor slide 42 and the welding laser head 431 to the laser welding work area, and the fourth linear motor slide 42 cooperates with the horizontal displacement mechanism 2 to complete the laser welding work. According to the set instructions, the welding laser head 431 returns to the initial position 2, and the fourth linear motor slide 42 rises to the highest position. The robot arm 5 can suck the finished product out of the detachable mold 209 and place it in the finished product material box 7, and then the robot arm 5 returns to the initial position 3 to complete the ablation welding process of the ultra-thin heat spreader.

[0055] According to the ultra-thin heat spreader laser ablation and welding integrated machine of the embodiment of the present invention, the laser ablation and welding processes of the ultra-thin heat spreader are concentrated on the same work surface, so that it has the functions of laser ablation and laser welding of the ultra-thin heat spreader at the same time. Compared with independent laser ablation equipment and laser welding equipment, it has the advantages of reducing floor space and safety hazards, improving production efficiency, facilitating product quality control, shortening production time, etc.

[0056] In some embodiments of the present application, the linear motor slide rail is further optimized, see Figure 5 and Figure 6 , also includes A wedge block 3121 is provided on the upper surface of the first slide rail 312; The second bottom plate 320 near the second stator 321 is provided with a wedge groove 3201 which matches the wedge block 3121 to ensure the horizontality of the second bottom plate 320 , thereby further ensuring the accuracy of laser ablation.

[0057] In some embodiments of the present application, the controllability is further optimized, see Figure 2 , further comprising an operation panel 10 and a display screen 11, wherein both the operation panel 10 and the display screen 11 are connected to the control host 6, wherein an emergency stop button is provided on one side of the operation panel 10.

[0058] In some embodiments of the present application, security is further optimized. Figure 2 , and also includes four maintenance doors 101 movably installed on the body 1, and a safety lock 1010 is fixedly installed on the maintenance door 101.

[0059] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the invention.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0061] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Mentioning "embodiment" in this article means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present embodiment application. The appearance of this phrase in various positions in the specification is not necessarily the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It can be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0062] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An ultra-thin heat sink laser ablation welding machine, characterized in that: include: A machine body (1), wherein a workbench (10) is mounted on the upper surface of the machine body (1); A horizontal displacement mechanism (2) is fixedly mounted on the workbench (10), and the horizontal displacement mechanism (2) can move the raw material carrying the ultra-thin heat-absorbing plate; A laser ablation mechanism (3) is mounted on a workbench (10) on one side of the horizontal displacement mechanism (2), and the laser ablation mechanism (3) is connected to an ablation laser head (331); A laser welding mechanism (4) is arranged side by side with the laser ablation mechanism (3) on the workbench (10), and the laser welding mechanism (4) is connected to a welding laser head (431); A mechanical arm (5) is fixedly mounted on the workbench (10), and the mechanical arm (5) has an end effector for loading and unloading the raw material on the horizontal displacement mechanism (2); A control host (6) is installed in the machine body (1) and is connected to the horizontal displacement mechanism (2) for adjusting the horizontal position of the raw material. The control host (6) is connected to the laser ablation mechanism (3) and the laser welding mechanism (4) respectively for adjusting the positions of the ablation laser head (331) and the welding laser head (431) respectively. The control host (6) is connected to the robot arm (5) for planning the motion trajectory of the robot arm (5) and executing loading and unloading actions.

2. The ultra-thin heat sink laser ablation welding integrated machine according to claim 1, characterized in that: The horizontal displacement mechanism (2) comprises: Mounting plate (201); A first baffle (202) and a second baffle (203) are respectively mounted on both sides of the mounting plate (201); A servo motor (204) is fixedly mounted on a side of the first baffle (202); Two parallel slide rails (205) are arranged on the mounting plate (201), and a plurality of motion guide blocks (206) are arranged on the parallel slide rails (205); Two screw rod end blocks (207) are respectively arranged between the parallel slide rails (205); A ball screw (208) is movably connected to the screw end block (207) and passes through the screw end block (207) to be coaxially connected to the servo motor (204); a nut is mounted on the ball screw (208); The detachable mold (209) is mounted on the motion guide block (206) and the nut, and the detachable mold (209) is driven to move horizontally on the parallel slide rail (205) through the ball screw (208) and the transmission nut.

3. The ultra-thin heat sink laser ablation welding integrated machine according to claim 1, characterized in that: The laser ablation mechanism (3) comprises: A first linear motor slide rail (31) composed of a first base plate (310), a first stator (311) and a first slide rail (312), wherein the first linear motor slide rail (31) is arranged perpendicular to the workbench (10), wherein the first slide rail (312) and the first stator (311) are arranged in the first base plate (310), and the first slide rail (312) is arranged on both sides of the first stator (311); A second linear motor slide rail (32) consisting of a second base plate (320), a second stator (321), a second slide rail (322) and a first mover (323), and arranged vertically nested with the first linear motor slide rail (31), wherein the second slide rail (322) and the second stator (321) are arranged in the second base plate (320), the second slide rail (322) is arranged on both sides of the second stator (321), and the first mover (323) is fixedly mounted on a side wall of the second base plate (320) and arranged opposite to the first stator (311); The ablation mounting seat (33) is used to mount an ablation laser head (331); the ablation mounting seat (33) is slidably connected to the second slide rail (322); a second mover is fixedly mounted on the surface of the ablation mounting seat (33) close to the second stator (321).

4. The ultra-thin heat sink laser ablation welding integrated machine according to claim 3, characterized in that: When the ablation mounting seat (33) moves to the farthest point from the first linear motor slide rail (31), the ablation mounting seat (33) can be located on the trajectory of the detachable mold (209).

5. The ultra-thin vapor chamber laser ablation welding integrated machine according to claim 1, characterized in that: The laser welding mechanism (4) comprises: a third linear motor slide rail (41), the third linear motor slide rail (41) being arranged perpendicularly to the workbench (10), and the third linear motor slide rail (41) having the same structure as the first linear motor slide rail (31); a fourth linear motor slide rail (42) vertically nested with the third linear motor slide rail (41), the fourth linear motor slide rail (42) having the same structure as the second linear motor slide rail (32); The welding mounting seat (43) is used to mount a welding laser head (431); the welding mounting seat (43) is slidably connected to the fourth linear motor slide rail (42); and a second mover is fixedly mounted on the surface of the welding mounting seat (43).

6. The ultra-thin heat sink laser ablation welding integrated machine according to claim 5, characterized in that: When the welding mounting seat (43) moves to the farthest point from the third linear motor slide rail (41), the welding mounting seat (43) can be located on the trajectory of the detachable mold (209).

7. The ultra-thin vapor chamber laser ablation welding integrated machine according to claim 3, characterized in that: A wedge block (3121) is provided on the upper surface of the first slide rail (312); The second bottom plate (320) close to the second stator (321) is provided with a wedge groove (3201) matching the wedge block (3121).

8. The ultra-thin vapor chamber laser ablation welding integrated machine according to claim 1, characterized in that: The mechanical arm (5) and the horizontal displacement mechanism (2) are located on the same straight line, and the working area of ​​the mechanical arm (5) is fan-shaped, and the fan-shaped angle range is 90° to 180°.

9. The ultra-thin vapor chamber laser ablation welding integrated machine according to claim 8, characterized in that: The mechanical arm (5) is a six-degree-of-freedom mechanical arm.

10. The ultra-thin vapor chamber laser ablation welding integrated machine according to claim 1, characterized in that: It also comprises a plurality of material boxes (7), wherein the material boxes (7) are arranged on the workbench (10) within the fan-shaped area.

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