Electrical component heat sink assembly system and assembly method

Abstract

The present invention discloses an electrical component heat sink assembly system and assembly method, which relates to the technical field of circuit heat sink assembly equipment and methods, and includes an electrical component feeding mechanism, a detection mechanism, a coating mechanism, a flipping mechanism, an installation mechanism, a first heat sink feeding mechanism, a second heat sink feeding mechanism, a gripping mechanism, and a controller; the gripping mechanism is arranged between the electrical component feeding mechanism, the detection mechanism, the coating mechanism, the flipping mechanism, and the installation mechanism; wherein the gripping mechanism is used to transfer the electrical component between the electrical component feeding mechanism, the detection mechanism, the coating mechanism, the flipping mechanism, and the installation mechanism. The electrical component heat sink assembly system and assembly method of the present invention can realize the automatic coating and detection of thermal conductive silicone grease for electrical components such as IGBTs, thereby realizing the automation of the assembly process.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit heat dissipation component assembly equipment and methods, and in particular to an electrical component heat dissipation component assembly system and method. Background Art

[0002] The power module is a core component of a train's traction converter and is crucial to its safe operation. A key factor affecting the lifespan of a power module is the quality and service life of its core component, the IGBT. Improving the IGBT's heat dissipation can improve its reliability and lifespan. Therefore, during the IGBT assembly process, thermal grease must be applied to the IGBT surface and then secured to the heat sink with screws. Process parameters during the IGBT assembly process, such as the accuracy and consistency of the thermal grease application thickness, the control of foreign matter in the thermal grease, the accuracy of IGBT placement and pairing, the screw tightening torque and sequence, and the rest time before final tightening, are crucial to the quality and service life of the IGBT. While automated IGBT coating devices have been developed to address this issue, detection methods still need improvement. Other process parameters still rely heavily on human operators, resulting in high labor intensity and difficulty in effectively ensuring process parameters. Therefore, an automated assembly system and method are urgently needed. Summary of the Invention

[0003] The purpose of the present invention is to provide an electrical component heat sink assembly system that can realize automatic coating and detection of thermal conductive silicone grease for electrical components such as IGBTs and realize automation of the assembly process.

[0004] The above-mentioned purpose of the present invention can be achieved by adopting the following technical solutions:

[0005] The present invention provides an electrical component heat sink assembly system for assembling electrical components on a first heat sink or a second heat sink, comprising a safety fence, an electrical component feeding mechanism, a detection mechanism, a coating mechanism, a flipping mechanism, an installation mechanism, a first heat sink feeding mechanism, a second heat sink feeding mechanism, a gripping mechanism, and a controller;

[0006] The safety fence surrounds and forms an assembly work area, the electrical component feeding mechanism, the detection mechanism, the coating mechanism, the flipping mechanism, the installation mechanism, the first heat sink feeding mechanism, and the second heat sink feeding mechanism are all arranged in the assembly work area, the gripping mechanism is arranged in the assembly work area and is located between the electrical component feeding mechanism, the detection mechanism, the coating mechanism, the flipping mechanism, and the installation mechanism, and the controller is arranged outside the safety fence;

[0007] Wherein, the gripping mechanism is used to transfer the electrical components among the electrical component feeding mechanism, the detecting mechanism, the coating mechanism, the turning mechanism, and the installing mechanism.

[0008] In a preferred embodiment, the electrical component feeding mechanism includes:

[0009] First support platform;

[0010] a first code reader, disposed on the first supporting platform, and configured to obtain information about the electrical component;

[0011] at least one display, disposed on the first supporting platform, the display being configured to display at least part of the information of the electrical component;

[0012] A feeding conveyor belt, arranged on the first supporting platform;

[0013] A material return conveyor belt is arranged on the first supporting platform;

[0014] a first electrical component tray, disposed on the feeding conveyor, the first electrical component tray being used to place the electrical components to be grasped by the grasping mechanism, the feeding conveyor being used to drive the first electrical component tray to allow the electrical components to enter the area to be grasped;

[0015] A second electrical component tray is arranged on the return conveyor belt. The second electrical component tray is used to place the unqualified electrical components transferred to the electrical component feeding mechanism by the gripping mechanism. The return conveyor belt is used to drive the second electrical component tray to return the unqualified electrical components to the staff.

[0016] In a preferred embodiment, the electrical component feeding mechanism also includes two safety gratings, which are arranged opposite to each other on the first supporting platform. Multiple safety detection light paths can be formed between the two safety gratings. When at least part of the safety detection light path is blocked, the gripping mechanism stops working.

[0017] In a preferred embodiment, the detection mechanism includes:

[0018] Second support platform;

[0019] a second code reader, disposed on the second supporting platform, and configured to obtain information about the electrical component;

[0020] a planar moving platform, disposed on the second supporting platform, for placing the electrical component transferred by the grasping mechanism to the detection mechanism, and for driving the electrical component to move on a horizontal plane;

[0021] The detection module is arranged on the second supporting platform and is located above the planar moving platform. The detection module is used to detect the thickness of the electrical component and the thickness of the thermal grease coated on the electrical component, and is used to detect foreign matter on the electrical component.

[0022] In a preferred embodiment, the flipping mechanism includes:

[0023] The third support platform;

[0024] a vertical movable platform, disposed on the third supporting platform, and used for placing the electrical component transferred from the grasping mechanism to the flipping mechanism;

[0025] A driver, provided on the third supporting platform;

[0026] A clamper is rotatably arranged on the driver, the clamper is used to clamp the electrical component, and the driver is used to drive the clamper to flip the electrical component.

[0027] In a preferred embodiment, the first heat dissipation element feeding mechanism includes:

[0028] Fourth support platform;

[0029] A first heat dissipation element conveying line is arranged on the fourth supporting platform;

[0030] The first heat sink tray is arranged on the first heat sink conveying line. The first heat sink tray is used to fix the first heat sink. The first heat sink conveying line is used to drive the first heat sink tray to make the first heat sink reach the installation mechanism.

[0031] In a preferred embodiment, the first heat sink tray comprises:

[0032] Pallet bottom plate;

[0033] A floating support seat is provided on the tray bottom plate, and the floating support seat is used to support the first heat dissipation element;

[0034] Two planar positioning blocks are provided on the bottom plate of the tray and are located on two adjacent sides of the floating support seat;

[0035] A clamping member is provided on the bottom plate of the tray and is provided on the other side of the floating support seat opposite to one of the planar positioning blocks, and a product change positioning plate is formed on the clamping member;

[0036] Two vertical positioning blocks are arranged oppositely on both sides of the tray bottom plate;

[0037] A radio frequency transmitter is provided on the bottom plate of the tray and is located below the floating support seat, and the radio frequency transmitter is signal-connected to the controller;

[0038] The first heat sink conveying line comprises:

[0039] Translation drive;

[0040] a stopper, arranged on a moving path of the first heat sink tray;

[0041] two vertical limiting blocks, the two vertical limiting blocks respectively cooperating with the two vertical positioning blocks to fix the first heat sink tray;

[0042] A radio frequency reader, configured to read information transmitted by the radio frequency transmitter, the radio frequency reader being in signal connection with the controller;

[0043] A plurality of sensors are used to identify the position of the first heat sink tray.

[0044] In a preferred embodiment, the mounting mechanism includes:

[0045] Fifth support platform;

[0046] a first mounting base plate, disposed on the fifth supporting platform, the first mounting base plate being used to place the first heat sink delivered to the mounting mechanism by the first heat sink feeding mechanism, and to place the electrical components delivered to the mounting mechanism by the grabbing mechanism;

[0047] a first adjustable torque screw gun, disposed on the fifth supporting platform, capable of pre-tightening and screwing the first heat sink and the electrical component together at the first mounting base;

[0048] a second mounting base plate, disposed on the fifth supporting platform, the second mounting base plate being used for placing the first heat sink and the electrical component that are pre-tightened and screwed together;

[0049] A second adjustable torque screw gun is arranged on the fifth supporting platform. The second adjustable torque screw gun can fasten and screw the first heat sink and the electrical component together at the second mounting base plate.

[0050] In a preferred embodiment, the second heat dissipation element feeding mechanism includes:

[0051] A transfer vehicle, wherein the plurality of second heat sinks are placed on the transfer vehicle, the gripping mechanism can place the plurality of electrical components on the plurality of second heat sinks in a one-to-one correspondence, and the transfer vehicle is used to transfer the plurality of second heat sinks and the plurality of electrical components to another location;

[0052] Two supporting and fixing platforms are arranged on opposite sides of the transfer vehicle. The transfer vehicle can be erected on the supporting and fixing platforms and fixed by the supporting and fixing platforms.

[0053] Another object of the present invention is to provide an electrical component heat sink assembly method that can achieve automatic coating and detection of thermal conductive silicone grease for electrical components such as IGBTs, thereby automating the assembly process.

[0054] The above-mentioned purpose of the present invention can be achieved by adopting the following technical solutions:

[0055] The present invention provides an electrical component heat sink assembly method for assembling an electrical component on a first heat sink or a second heat sink using the electrical component heat sink assembly system, comprising the following steps:

[0056] Turning on the electrical component heat sink assembly system and resetting the electrical component feeding mechanism, the detection mechanism, the coating mechanism, the flipping mechanism, the installation mechanism, the first heat sink feeding mechanism, the second heat sink feeding mechanism, the gripping mechanism, and the controller to an initial state;

[0057] The first heat sink is placed on a first heat sink tray and cleaned. The controller identifies the identification code of the first heat sink and determines the information of the first heat sink. If the information of the first heat sink matches, the first heat sink tray carrying the first heat sink is conveyed to the installation mechanism via a first heat sink conveyor line.

[0058] The transfer vehicle is fixed by a supporting fixing platform, and the second heat dissipation element is placed on the transfer vehicle;

[0059] The staff places the cleaned electrical components on the first electrical component tray. The controller recognizes the identification code of the electrical components and determines the information of the electrical components. If the information of the electrical components matches, the first electrical component tray carrying the electrical components is moved to the area to be grasped via the feeding conveyor belt.

[0060] The electrical components in the area to be grasped are transferred to the detection mechanism by the grasping mechanism, and the electrical components are detected for foreign objects by the detection module. If the foreign object detection is qualified, the grasping mechanism transfers the electrical components to the coating mechanism. If the foreign object detection is unqualified, the grasping mechanism transfers the electrical components to a second electrical component tray, and the second electrical component tray is driven by a return conveyor belt to return the unqualified electrical components to the staff;

[0061] Applying thermal grease on the electrical component by the coating mechanism;

[0062] The electrical component coated with the thermal grease is transferred to the detection mechanism by the gripping mechanism, and the electrical component coated with the thermal grease is subjected to foreign matter detection and coating thickness detection by the detection module. If both the foreign matter detection and coating thickness detection are qualified, the gripping mechanism transfers the electrical component to the flipping mechanism. If either the foreign matter detection or the coating thickness detection is unqualified, the gripping mechanism transfers the electrical component to the second electrical component tray, and the second electrical component tray is driven by the return conveyor belt to return the unqualified electrical component to the staff;

[0063] Turning the qualified electrical component upside down by the turning mechanism so that the surface of the electrical component coated with the thermal grease faces downward;

[0064] Transferring the flipped electrical component to the mounting mechanism through the grabbing mechanism and placing it on the first heat sink on the first mounting base plate;

[0065] The flipped electrical component is transferred to the second heat sink feeding mechanism by the grabbing mechanism, and is placed on the second heat sink on the transfer vehicle;

[0066] Using a first adjustable torque screw gun of the mounting mechanism, pre-tightening and screwing the first heat sink and the electrical component at the first mounting base plate at a first preset torque and a second preset torque in sequence;

[0067] Transferring the first heat sink and the electrical component, which are pre-tightened and screwed together, to a buffer area via the first heat sink conveyor line and leaving them to stand for 30 minutes;

[0068] Transferring the first heat sink and the electrical component, which are pre-tightened and screwed together, to the second mounting base plate via the first heat sink conveying line;

[0069] Using the second adjustable torque screw gun to tighten and screw the first heat sink and the electrical component at the second mounting base plate at a second preset torque;

[0070] The first heat sink and the electrical component that are screwed together are transported away via the first heat sink conveying line, and the second heat sink and the electrical component that are placed together are transported away via the transfer vehicle.

[0071] The characteristics and advantages of the present invention are:

[0072] The electrical component heat sink assembly system and method provided by the present invention centralizes equipment from multiple process flows within an assembly work area. A gripping mechanism enables the rapid, automated transfer of electrical components between various mechanisms, significantly improving process efficiency and reducing manual labor. Furthermore, the electrical component heat sink assembly system provided by the present invention includes a coating mechanism and a detection mechanism. The coating mechanism automatically applies thermal grease to the electrical components, while the detection mechanism accurately detects coating quality and foreign matter presence, significantly improving the efficiency of thermal grease application to the electrical components and enhancing the accuracy and consistency of the application. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. 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 creative work.

[0074] Figure 1 Shown is a schematic plan view of the overall structure of the electrical component heat sink assembly system of the present invention.

[0075] Figure 2 Shown is a schematic structural diagram of the feeding mechanism of the electrical component heat sink assembly system of the present invention.

[0076] Figure 3 Shown is a schematic structural diagram of the detection mechanism of the electrical component heat sink assembly system of the present invention.

[0077] Figure 4 Shown is a schematic structural diagram of the flip mechanism of the electrical component heat sink assembly system of the present invention.

[0078] Figure 5 Shown is a schematic diagram of the first heat sink feeding mechanism of the electrical component heat sink assembly system of the present invention.

[0079] Figure 6 Shown is a schematic structural diagram of a first heat sink tray of an electrical component heat sink assembly system of the present invention.

[0080] Figure 7 Shown is a schematic structural diagram of the installation mechanism of the electrical component heat sink assembly system of the present invention.

[0081] Figure 8 Shown is a schematic structural diagram of the feeding mechanism of the electrical component heat sink assembly system of the present invention. DETAILED DESCRIPTION

[0082] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without inventive effort are within the scope of protection of the present invention. It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there can be an intermediate element. The terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to mechanical or electrical connections, internal communication between two elements, direct connection, or indirect connection through an intermediary. Those of ordinary skill in the art will understand the specific meanings of these terms based on the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0083] Example 1:

[0084] See also Figure 1 As shown, the present invention provides an electrical component heat sink assembly system for assembling electrical components on a first heat sink or a second heat sink, comprising a safety fence 10, an electrical component feeding mechanism 2, a detection mechanism 4, a coating mechanism 5, a flipping mechanism 6, an installation mechanism 7, a first heat sink feeding mechanism 8, a second heat sink feeding mechanism 9, a gripping mechanism 3, and a controller 1; the safety fence 10 surrounds and forms an assembly work area, the electrical component feeding mechanism 2, the detection mechanism 4, the coating mechanism 5, the flipping mechanism 6, the installation mechanism 7, the first heat sink feeding mechanism 8, and the second heat sink feeding mechanism 9 are all arranged in the assembly work area, the gripping mechanism 3 is arranged in the assembly work area, and is located between the electrical component feeding mechanism 2, the detection mechanism 4, the coating mechanism 5, the flipping mechanism 6, and the installation mechanism 7, and the controller 1 is arranged on the outside of the safety fence 10; wherein, the gripping mechanism 3 is used to transfer electrical components between the electrical component feeding mechanism 2, the detection mechanism 4, the coating mechanism 5, the flipping mechanism 6, and the installation mechanism 7. Specifically, the electrical component may be an IGBT power module, the first heat sink may be a water-cooled heat sink for dissipating heat from the IGBT power module, and the second heat sink may be an air-cooled heat sink for dissipating heat from the IGBT power module.

[0085] The electrical component heat sink assembly system provided by the present invention centralizes equipment from multiple process flows within an assembly work area. A gripping mechanism 3 enables rapid, automated transfer of electrical components between various mechanisms, significantly improving process efficiency and reducing manual labor. Furthermore, the electrical component heat sink assembly system provided by the present invention includes a coating mechanism 5 and a detection mechanism 4. The coating mechanism 5 automatically applies thermal grease to the electrical components, while the detection mechanism 4 accurately detects coating quality and foreign matter. This significantly improves the efficiency of applying thermal grease to the electrical components, and enhances the accuracy and consistency of the coating.

[0086] To further illustrate the specific structure of the electrical component heat sink assembly system according to the embodiment of the present invention, the structural relationship and functional limitations thereof are further described below, wherein:

[0087] See also Figure 2 As shown, in a preferred embodiment, the electrical component feeding mechanism 2 includes: a first support platform 21; a first code reader 22, which is arranged on the first support platform 21, and the first code reader 22 is used to obtain information about electrical components; at least one display 23, which is arranged on the first support platform 21, and the display 23 is used to display at least part of the information of the electrical components; a feeding conveyor 24, which is arranged on the first support platform 21; a return conveyor 25, which is arranged on the first support platform 21; a first electrical component tray 26, which is arranged on the feeding conveyor 24, and the first electrical component tray 26 is used to place electrical components to be grasped by the grasping mechanism 3, and the feeding conveyor 24 is used to drive the first electrical component tray 26 to allow the electrical components to enter the area to be grasped; a second electrical component tray 27, which is arranged on the return conveyor 25, and the second electrical component tray 27 is used to place unqualified electrical components transferred to the electrical component feeding mechanism 2 by the grasping mechanism 3, and the return conveyor 25 is used to drive the second electrical component tray 27 to return the unqualified electrical components to the staff.

[0088] In a preferred embodiment, the electrical component feeding mechanism 2 also includes two safety gratings 28, which are arranged relative to each other on the first supporting platform 21. Multiple safety detection light paths can be formed between the two safety gratings 28. When at least part of the safety detection light path is blocked, the grasping mechanism 3 stops working.

[0089] See also Figure 3As shown, in a preferred embodiment, the detection mechanism 4 includes: a second support platform 41; a second code reader 42, which is arranged on the second support platform 41, and the second code reader 42 is used to obtain information about the electrical components; a planar moving platform 43, which is arranged on the second support platform 41, and the planar moving platform 43 is used to place the electrical components transferred to the detection mechanism 4 by the grasping mechanism 3, and is used to drive the electrical components to move on a horizontal plane; a detection module 44, which is arranged on the second support platform 41 and is located above the planar moving platform 43, and the detection module 44 is used to detect the thickness of the electrical components and the thickness of the thermal grease coated on the electrical components, and is used to detect foreign matter on the electrical components.

[0090] See also Figure 4 As shown, in a preferred embodiment, the flipping mechanism 6 includes: a third supporting platform 61; a vertical movable platform 62, which is arranged on the third supporting platform 61, and the vertical movable platform 62 is used to place the electrical components transferred from the grasping mechanism 3 to the flipping mechanism 6; a driver 63, which is arranged on the third supporting platform 61; a clamper 64, which is rotatably arranged on the driver 63, and the clamper 64 is used to clamp the electrical components, and the driver 63 is used to drive the clamper 64 to flip the electrical components.

[0091] See also Figure 5 and Figure 6 As shown, in a preferred embodiment, the first heat sink feeding mechanism 8 includes: a fourth support platform 81; a first heat sink conveyor line 83, which is arranged on the fourth support platform 81; a first heat sink tray 82, which is arranged on the first heat sink conveyor line 83, the first heat sink tray 82 is used to fix the first heat sink, and the first heat sink conveyor line 83 is used to drive the first heat sink tray 82 to make the first heat sink reach the installation mechanism 7.

[0092] In a preferred embodiment, the first heat sink tray 82 includes: a tray base 821; a floating support seat 822, which is arranged on the tray base 821 and is used to support the first heat sink; two planar positioning blocks 823, which are arranged on the tray base 821 and are located on two adjacent sides of the floating support seat 822; a clamping member 824, which is arranged on the tray base 821 and is arranged on the other side of the floating support seat 822 opposite to one planar positioning block 823, and a product change positioning plate is formed on the clamping member 824; two vertical positioning blocks 825, which are arranged on both sides of the tray base 821 opposite to each other; a radio frequency transmitter, which is arranged on the tray base 821 and is located below the floating support seat 822, and the radio frequency transmitter is signal-connected to the controller 1;

[0093] The first heat sink conveyor line 83 includes: a translation driver 831; a stopper 832, which is arranged on the moving path of the first heat sink tray 82; two vertical limit blocks 833, which respectively cooperate with two vertical positioning blocks 825 to fix the first heat sink tray 82; a radio frequency reader, which is used to read the information transmitted by the radio frequency transmitter, and the radio frequency reader is connected to the controller 1 in a signal manner; and multiple sensors, which are used to identify the position of the first heat sink tray 82.

[0094] See also Figure 7 As shown, in a preferred embodiment, the mounting mechanism 7 includes: a fifth support platform 71; a first mounting base plate 72, disposed on the fifth support platform 71, for placing the first heat sink delivered to the mounting mechanism 7 by the first heat sink feeding mechanism 8, and for placing the electrical components delivered to the mounting mechanism 7 by the gripping mechanism 3; a first adjustable torque screw gun 73, disposed on the fifth support platform 71, for pre-tightening and screwing the first heat sink and the electrical components together at the first mounting base plate 72; a second mounting base plate 74, disposed on the fifth support platform 71, for placing the pre-tightened and screwed first heat sink and the electrical components together; and a second adjustable torque screw gun 75, disposed on the fifth support platform 71, for tightening and screwing the first heat sink and the electrical components together at the second mounting base plate 74. Specifically, the first adjustable torque screw gun 73 and the second adjustable torque screw gun 75 can be formed by the same adjustable torque screw gun moving between different positions via a conveyor belt.

[0095] See also Figure 8 As shown, in a preferred embodiment, the second heat sink feeding mechanism 9 includes: a transfer cart 91, a plurality of second heat sinks are placed on the transfer cart 91, the gripping mechanism 3 can place a plurality of electrical components one by one on the plurality of second heat sinks, and the transfer cart 91 is used to transfer the plurality of second heat sinks and the plurality of electrical components to other places; two supporting and fixing platforms 92 are arranged on opposite sides of the transfer cart 91, and the transfer cart 91 can be mounted on the supporting and fixing platforms 92 and fixed by the supporting and fixing platforms 92.

[0096] Example 2:

[0097] See also Figures 1 to 8 As shown, the present invention provides an electrical component heat sink assembly method for assembling an electrical component on a first heat sink or a second heat sink using the electrical component heat sink assembly system, comprising the following steps:

[0098] S1: Start the electrical component heat sink assembly system and reset the electrical component feeding mechanism 2, the detection mechanism 4, the coating mechanism 5, the flipping mechanism 6, the installation mechanism 7, the first heat sink feeding mechanism 8, the second heat sink feeding mechanism 9, the gripping mechanism 3, and the controller 1 to the initial state;

[0099] S201: A first heat sink is placed on a first heat sink tray 82 and cleaned. The controller 1 identifies the identification code of the first heat sink and determines the information of the first heat sink. If the information of the first heat sink matches, the first heat sink tray 82 carrying the first heat sink is conveyed to the installation mechanism 7 via the first heat sink conveyor line 83.

[0100] S202: Fix the transfer vehicle 91 by supporting the fixing platform 92, and place a second heat sink on the transfer vehicle 91;

[0101] S3: The worker places the cleaned electrical components on the first electrical component tray 26. The controller 1 recognizes the identification code of the electrical components and determines the information of the electrical components. If the information of the electrical components matches, the first electrical component tray 26 carrying the electrical components is moved to the area to be grasped via the feeding conveyor 24.

[0102] S4: The electrical components in the area to be grasped are transferred to the detection mechanism 4 by the grasping mechanism 3. The electrical components are inspected for foreign objects by the detection module 44. If the foreign object detection is qualified, the grasping mechanism 3 transfers the electrical components to the coating mechanism 5. If the foreign object detection is unqualified, the grasping mechanism 3 transfers the electrical components to the second electrical component tray 27. The second electrical component tray 27 is driven by the return conveyor 25 to return the unqualified electrical components to the staff.

[0103] S5: Applying thermal grease on the electrical components through the coating mechanism 5;

[0104] S6: The electrical components coated with thermal grease are transferred to the inspection mechanism 4 by the gripping mechanism 3. The electrical components coated with thermal grease are inspected for foreign matter and coating thickness by the inspection module 44. If both the foreign matter inspection and coating thickness inspection are qualified, the gripping mechanism 3 transfers the electrical components to the flipping mechanism 6. If both the foreign matter inspection and coating thickness inspection are unqualified, the gripping mechanism 3 transfers the electrical components to the second electrical component tray 27. The second electrical component tray 27 is driven by the return conveyor 25 to return the unqualified electrical components to the staff.

[0105] S7: Turn the qualified electrical component upside down by the turning mechanism 6 so that the surface of the electrical component coated with the thermal conductive silicone grease faces downward;

[0106] S801: The flipped electrical component is transferred to the mounting mechanism 7 by the gripping mechanism 3 and placed on the first heat sink on the first mounting base plate 72;

[0107] S802: The flipped electrical component is transferred to the second heat sink feeding mechanism 9 by the grabbing mechanism 3 and placed on the second heat sink on the transfer vehicle 91;

[0108] S803: Using the first adjustable torque screw gun 73 of the mounting mechanism 7, the first heat sink and the electrical component on the first mounting base plate 72 are pre-tightened and screwed together with a first preset torque and a second preset torque.

[0109] S804: The first heat sink and the electrical components that are pre-tightened and screwed are transferred to the buffer area via the first heat sink conveyor line 83 and left to stand for 30 minutes.

[0110] S805: Transferring the pre-tightened screw-connected first heat sink and electrical components to the second mounting base plate 74 via the first heat sink conveyor line 83;

[0111] S806: Using a second adjustable torque screw gun 75 to tighten and screw the first heat sink and the electrical component at the second mounting base plate 74 at a second preset torque;

[0112] S9: The first heat sink and the electrical component that are screwed together are transported away via the first heat sink conveyor line 83 , and the second heat sink and the electrical component that are placed together are transported away via the transfer vehicle 91 .

[0113] The above are only a few embodiments of the present invention. Those skilled in the art can make various changes or modifications to the embodiments of the present invention based on the contents disclosed in the application documents without departing from the spirit and scope of the present invention. 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 this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

Claims

1. An electrical component heat sink assembly system for assembling an electrical component on a first heat sink or a second heat sink, characterized in that: It includes a safety fence, an electrical component feeding mechanism, a detection mechanism, a coating mechanism, a turning mechanism, an installation mechanism, a first heat dissipation element feeding mechanism, a second heat dissipation element feeding mechanism, a grasping mechanism, and a controller; The safety fence surrounds and forms an assembly work area, the electrical component feeding mechanism, the detection mechanism, the coating mechanism, the flipping mechanism, the installation mechanism, the first heat sink feeding mechanism, and the second heat sink feeding mechanism are all arranged in the assembly work area, the gripping mechanism is arranged in the assembly work area and is located between the electrical component feeding mechanism, the detection mechanism, the coating mechanism, the flipping mechanism, and the installation mechanism, and the controller is arranged outside the safety fence; Wherein, the gripping mechanism is used to transfer the electrical component between the electrical component feeding mechanism, the detecting mechanism, the coating mechanism, the turning mechanism, and the mounting mechanism; The electrical component feeding mechanism comprises: First support platform; a first code reader, disposed on the first supporting platform, and configured to obtain information about the electrical component; at least one display, disposed on the first supporting platform, the display being configured to display at least part of the information of the electrical component; A feeding conveyor belt, arranged on the first supporting platform; A material return conveyor belt is arranged on the first supporting platform; a first electrical component tray, disposed on the feeding conveyor, the first electrical component tray being used to place the electrical components to be grasped by the grasping mechanism, the feeding conveyor being used to drive the first electrical component tray to allow the electrical components to enter the area to be grasped; a second electrical component tray, disposed on the return conveyor, for placing the unqualified electrical components transferred by the gripping mechanism to the electrical component feeding mechanism; and the return conveyor is used to drive the second electrical component tray to return the unqualified electrical components to the staff; The detection mechanism includes: Second support platform; a second code reader, disposed on the second supporting platform, and configured to obtain information about the electrical component; a planar moving platform, disposed on the second supporting platform, for placing the electrical component transferred by the grasping mechanism to the detection mechanism, and for driving the electrical component to move on a horizontal plane; a detection module, disposed on the second supporting platform and located above the planar moving platform, the detection module being used to detect the thickness of the electrical component and the thickness of the thermal grease applied on the electrical component, and to detect foreign matter on the electrical component; The turning mechanism comprises: The third support platform; a vertical movable platform, disposed on the third supporting platform, and used for placing the electrical component transferred from the grasping mechanism to the flipping mechanism; A driver, provided on the third supporting platform; a holder rotatably disposed on the driver, the holder being used to clamp the electrical component, and the driver being used to drive the holder to flip the electrical component so that the surface of the electrical component coated with the thermal grease faces downward; The mounting mechanism comprises: Fifth support platform; a first mounting base plate, disposed on the fifth supporting platform, the first mounting base plate being used to place the first heat sink delivered to the mounting mechanism by the first heat sink feeding mechanism, and to place the electrical components delivered to the mounting mechanism by the grabbing mechanism; a first adjustable torque screw gun, disposed on the fifth supporting platform, capable of pre-tightening and screwing the first heat sink and the electrical component together at the first mounting base; a second mounting base plate, disposed on the fifth supporting platform, the second mounting base plate being used for placing the first heat sink and the electrical component that are pre-tightened and screwed together; A second adjustable torque screw gun is arranged on the fifth supporting platform. The second adjustable torque screw gun can fasten and screw the first heat sink and the electrical component together at the second mounting base plate.

2. The electrical component heat sink assembly system according to claim 1, wherein: The electrical component feeding mechanism also includes two safety gratings, which are arranged opposite to each other on the first supporting platform. Multiple safety detection light paths can be formed between the two safety gratings. When at least part of the safety detection light path is blocked, the gripping mechanism stops working.

3. The electrical component heat sink assembly system according to claim 1, wherein: The first heat dissipation element feeding mechanism comprises: Fourth support platform; A first heat dissipation element conveying line is arranged on the fourth supporting platform; The first heat sink tray is arranged on the first heat sink conveying line. The first heat sink tray is used to fix the first heat sink. The first heat sink conveying line is used to drive the first heat sink tray to make the first heat sink reach the installation mechanism.

4. The electrical component heat sink assembly system according to claim 3, wherein: The first heat sink tray comprises: Pallet bottom plate; A floating support seat is provided on the tray bottom plate, and the floating support seat is used to support the first heat dissipation element; Two planar positioning blocks are provided on the bottom plate of the tray and are located on two adjacent sides of the floating support seat; A clamping member is provided on the bottom plate of the tray and is provided on the other side of the floating support seat opposite to one of the planar positioning blocks, and a product change positioning plate is formed on the clamping member; Two vertical positioning blocks are arranged oppositely on both sides of the tray bottom plate; A radio frequency transmitter is provided on the bottom plate of the tray and is located below the floating support seat, and the radio frequency transmitter is signal-connected to the controller; The first heat sink conveying line comprises: Translation drive; a stopper, arranged on a moving path of the first heat sink tray; two vertical limiting blocks, the two vertical limiting blocks respectively cooperating with the two vertical positioning blocks to fix the first heat sink tray; A radio frequency reader, configured to read information transmitted by the radio frequency transmitter, the radio frequency reader being in signal connection with the controller; A plurality of sensors are used to identify the position of the first heat sink tray.

5. The electrical component heat sink assembly system according to claim 1, wherein: The second heat dissipation element feeding mechanism includes: A transfer vehicle, wherein the plurality of second heat sinks are placed on the transfer vehicle, the gripping mechanism can place the plurality of electrical components on the plurality of second heat sinks in a one-to-one correspondence, and the transfer vehicle is used to transfer the plurality of second heat sinks and the plurality of electrical components to another location; Two supporting and fixing platforms are arranged on opposite sides of the transfer vehicle. The transfer vehicle can be erected on the supporting and fixing platforms and fixed by the supporting and fixing platforms.

6. An electrical component heat sink assembly method for assembling an electrical component on a first heat sink or a second heat sink by using the electrical component heat sink assembly system according to any one of claims 1 to 5, characterized in that: The following steps are involved: Turning on the electrical component heat sink assembly system and resetting the electrical component feeding mechanism, the detection mechanism, the coating mechanism, the flipping mechanism, the installation mechanism, the first heat sink feeding mechanism, the second heat sink feeding mechanism, the gripping mechanism, and the controller to an initial state; The first heat sink is placed on a first heat sink tray and cleaned. The controller identifies the identification code of the first heat sink and determines the information of the first heat sink. If the information of the first heat sink matches, the first heat sink tray carrying the first heat sink is conveyed to the installation mechanism via a first heat sink conveyor line. The transfer vehicle is fixed by a supporting fixing platform, and the second heat dissipation element is placed on the transfer vehicle; The staff places the cleaned electrical components on the first electrical component tray. The controller recognizes the identification code of the electrical components and determines the information of the electrical components. If the information of the electrical components matches, the first electrical component tray carrying the electrical components is moved to the area to be grasped via the feeding conveyor belt. The electrical components in the area to be grasped are transferred to the detection mechanism by the grasping mechanism, and the electrical components are detected for foreign objects by the detection module. If the foreign object detection is qualified, the grasping mechanism transfers the electrical components to the coating mechanism. If the foreign object detection is unqualified, the grasping mechanism transfers the electrical components to a second electrical component tray, and the second electrical component tray is driven by a return conveyor belt to return the unqualified electrical components to the staff; Applying thermal grease on the electrical component by the coating mechanism; The electrical component coated with the thermal grease is transferred to the detection mechanism by the gripping mechanism, and the electrical component coated with the thermal grease is subjected to foreign matter detection and coating thickness detection by the detection module. If both the foreign matter detection and coating thickness detection are qualified, the gripping mechanism transfers the electrical component to the flipping mechanism. If either the foreign matter detection or the coating thickness detection is unqualified, the gripping mechanism transfers the electrical component to the second electrical component tray, and the second electrical component tray is driven by the return conveyor belt to return the unqualified electrical component to the staff; Turning the qualified electrical component upside down by the turning mechanism so that the surface of the electrical component coated with the thermal grease faces downward; Transferring the flipped electrical component to the mounting mechanism through the grabbing mechanism and placing it on the first heat sink on the first mounting base plate; The flipped electrical component is transferred to the second heat sink feeding mechanism by the grabbing mechanism, and is placed on the second heat sink on the transfer vehicle; Using a first adjustable torque screw gun of the mounting mechanism, pre-tightening and screwing the first heat sink and the electrical component at the first mounting base plate at a first preset torque and a second preset torque in sequence; Transferring the first heat sink and the electrical component, which are pre-tightened and screwed together, to a buffer area via the first heat sink conveyor line and leaving them to stand for 30 minutes; Transferring the first heat sink and the electrical component, which are pre-tightened and screwed together, to the second mounting base plate via the first heat sink conveying line; Using a second adjustable torque screw gun to tighten and screw the first heat sink and the electrical component at the second mounting base plate at a second preset torque; The first heat sink and the electrical component that are screwed together are transported away via the first heat sink conveying line, and the second heat sink and the electrical component that are placed together are transported away via the transfer vehicle.

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