Secondary welding jig separating device for IGBT module

Abstract

The application discloses an IGBT module secondary welding jig separation device, which comprises a jig separation module and a carrying module, the jig separation module comprises a jig positioning module and a plug-in module, and the jig positioning module is provided with a jig positioning groove; the plug-in module comprises a linkage assembly and a plug-in driving assembly, the linkage assembly is adapted to be connected and fixed with the anti-explosion tin plate, and the plug-in driving assembly is adapted to drive the linkage assembly to move; the carrying module comprises a carrying driving module, a module carrying assembly and a frame carrying assembly, and the carrying driving module is adapted to drive the module carrying assembly and the frame carrying assembly to move; the frame carrying assembly is automatically moved away from the limiting frame, the plug-in module automatically pulls out the anti-explosion tin plate, and then the module carrying assembly carries the IGBT module, so that the IGBT module can be completely separated from the welding jig, the whole process does not need manual contact, the production efficiency is remarkably improved, the product consistency and cleanliness are ensured, and the process reliability of the jig separation link after the secondary welding of the IGBT module is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of IGBT module production equipment technology, and in particular to an IGBT module secondary welding fixture separation device. Background Technology

[0002] IGBT (Insulated Gate Bipolar Transistor) is a composite fully controllable voltage-driven power semiconductor device composed of a bipolar transistor and an insulated gate field-effect transistor. It has wide applications in many fields such as national defense industry, national economy and new energy vehicles.

[0003] Packaging is a crucial step in IGBT module production. During the packaging process, the IGBT chip and diode chip are first soldered onto a DBC (Direct Copper Ceramic) substrate using solder pads, followed by chip bonding. A second soldering process then occurs—the soldered sub-units, electrodes, solder pads, and solder rings are then welded onto a heat sink using specialized equipment.

[0004] Currently, the most widely used IGBT modules in automobiles employ a pin-fin heat sink package. This type of package requires a fixture to assist in the secondary soldering process. The soldering fixture typically includes components such as pin bases, limiting frames, and anti-soldering solder plates. The anti-soldering solder plate must be pre-embedded inside the module to prevent solder splattering during soldering, avoiding solder contamination, solder balls, and bridging defects. After soldering, these components need to be separated to facilitate subsequent manufacturing processes.

[0005] Currently, the removal of jigs is mainly done manually, or only some jigs can be removed automatically, resulting in low separation efficiency. Summary of the Invention

[0006] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes an IGBT module secondary soldering fixture separation device, which can separate the limiting frame and the anti-explosion solder plate through a frame handling assembly and a plug-in module, so that the module handling assembly can completely separate the IGBT module from the soldering fixture.

[0007] This invention provides an IGBT module secondary soldering fixture separation device for separating the IGBT module secondary soldering assembly. The IGBT module secondary soldering assembly includes an IGBT module and a soldering fixture. The soldering fixture includes a pin base, a limiting frame, and an anti-explosion solder plate. The fixture separation module includes a fixture positioning module and a plug-in module. The fixture positioning module is provided with a fixture positioning groove, which is adapted to conformally position the welding fixture. The plug-in module includes a linkage component and a plug-in drive component. The linkage component is adapted to be connected and fixed with the anti-explosion solder plate, and the plug-in drive component is adapted to drive the linkage component to move so that the anti-explosion solder plate moves along its plug-in direction. The transport module includes a transport drive module, a module transport component, and a frame transport component. The transport drive module is adapted to drive the module transport component and the frame transport component to move. The module transport component is adapted to transport the IGBT module, and the frame transport component is adapted to transport the limiting frame.

[0008] According to some embodiments of the present invention, the linkage assembly includes a plug-in top rod adapted to be plugged into the anti-explosion solder plate, the extension direction of the plug-in top rod being perpendicular to the surface of the anti-explosion solder plate, and the plug-in / pull-out driving assembly adapted to drive the plug-in top rod to reciprocate along the plug-in / pull-out direction.

[0009] According to some embodiments of the present invention, the linkage assembly further includes an active plate, a driven plate, and a force sensor, wherein the plug-in top rod is connected to the driven plate, and the force sensor abuts between the active plate and the driven plate; The insertion / removal drive assembly is adapted to drive the active plate to move along the insertion / removal direction, and the active plate drives the driven plate to move via the force sensor.

[0010] According to some embodiments of the present invention, the insertion / removal drive assembly includes an auxiliary slide rail, a timing belt, and a timing belt drive member. The auxiliary slide rail and the timing belt extend along the insertion / removal direction. The auxiliary slide rail is slidably connected to the active plate and the driven plate. The active plate is connected to the timing belt. The timing belt drive member is adapted to drive the timing belt to move. The insertion / removal module includes two linkage components, which are respectively disposed on both sides of the fixture positioning module along the insertion / removal direction, and the active plates of the two linkage components are respectively connected to the opposite side of the synchronous belt.

[0011] According to some embodiments of the present invention, the fixture positioning module includes a limiting seat assembly and a supporting suction cup assembly, wherein the limiting seat assembly is provided with the fixture positioning groove; The support suction cup assembly is disposed in the positioning groove of the fixture. The support suction cup assembly includes a support column and a support suction cup. The support column is adapted to pass through the pin base to lift the IGBT module. The support suction cup is disposed on the top surface of the support column. The distance between the top surface of the support column and the inner bottom surface of the pin base is greater than the distance between the top surface of the pin base and the bottom surface of the anti-explosion solder plate.

[0012] According to some embodiments of the present invention, the fixture separation module further includes a transfer platform disposed on the side adjacent to the fixture positioning module, the transfer platform being adapted to place the limiting frame, and the frame transport assembly being connected to the fixture positioning module and the transfer platform.

[0013] According to some embodiments of the present invention, the handling module further includes a board handling assembly connected to the movable end of the handling drive module. The board handling assembly is connected to the fixture positioning module and the plug-in module, and is suitable for picking up and handling the anti-explosion solder board.

[0014] According to some embodiments of the present invention, the handling module further includes an upper camera module connected to the movable end of the handling drive module. The detection field of view of the upper camera module is perpendicular to the surface of the anti-explosion solder plate, and the upper camera module is communicatively connected to the handling drive module.

[0015] According to some embodiments of the present invention, the handling drive module includes a three-axis gantry and multiple rotary drive components. The module handling assembly, the frame handling assembly, and the plate handling assembly are each connected to the movable end of the three-axis gantry through one of the rotary drive components. The rotation axis of the rotary drive component is perpendicular to the surface of the anti-explosion tin plate.

[0016] According to some embodiments of the present invention, the IGBT module secondary welding fixture separation device further includes a fixture loading and unloading conveyor line and a module unloading conveyor line; the fixture separation module, the fixture loading and unloading conveyor line and the module unloading conveyor line are arranged along a first direction, which is perpendicular to the insertion and extraction direction; The transport module also includes a jig transport component connected to the movable end of the transport drive module. The jig transport component is connected to the jig loading and unloading conveyor line and the jig separation module, and is suitable for transporting the IGBT module secondary welding assembly or the welding jig. The module handling component is connected to the module unloading conveyor line and the fixture separation module, and is suitable for handling the IGBT module.

[0017] The embodiments of the present invention have at least the following beneficial effects: the frame handling component automatically moves the limiting frame away, the plug-in module automatically pulls out the anti-explosion solder plate, and then the module handling component transports the IGBT module, so that the IGBT module can be completely separated from the welding fixture. The entire process does not require manual contact, which significantly improves production efficiency, ensures product consistency and cleanliness, and effectively improves the process reliability of the fixture separation process after the secondary welding of the IGBT module.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the IGBT module secondary welding fixture separation device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the fixture separation module according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the pluggable module according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the handling module according to an embodiment of the present invention.

[0020] Figure label: 100. Fixture separation module; 110. Fixture positioning module; 111. Fixture positioning groove; 112. Limit seat assembly; 1121. Limit block; 113. Support suction cup assembly; 1131. Support column; 1132. Support suction cup; 120. Insertion / removal module; 121. Linkage assembly; 1211. Insertion top rod; 1212. Active plate; 1213. Driven plate; 1214. Force sensor; 122. Insertion / removal drive assembly; 1221. Auxiliary slide rail; 1222. Synchronous belt; 1223. Synchronous belt drive component; 130. Transfer table; 200. Handling module; 210. Handling drive module; 211. Three-axis gantry; 212. Rotary drive component; 220. Module handling assembly; 230. Frame handling assembly; 240. Sheet metal handling assembly; 250. Camera mounting module; 260. Fixture handling assembly; 300. Fixture loading and unloading conveyor line; 400. Module unloading conveyor line; 500. Fixture return conveyor line; 600. Welding fixture; 610. Pin base; 620. Limiting frame; 630. Anti-explosion solder plate. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0023] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number, and "above," "below," "within," etc. are understood to include the stated number. If "first," "second," etc. are used in the description, they are only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0024] In the description of this invention, unless otherwise explicitly defined, terms such as "set", "install", and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0025] Combination Figure 2 and Figure 3 As shown, the IGBT module secondary soldering fixture separation device of this embodiment is suitable for disassembling the IGBT module secondary soldering assembly. The IGBT module secondary soldering assembly includes an IGBT module (not shown in the figure) and a soldering fixture 600. The soldering fixture 600 includes a pin base 610, a limiting frame 620 and an anti-explosion solder plate 630. The IGBT module is placed on the pin base 610, the limiting frame 620 covers the IGBT module, and the anti-explosion solder plate 630 is inserted into the IGBT module.

[0026] Please refer to Figures 1 to 4As shown, this embodiment of the invention provides an IGBT module secondary welding fixture separation device, including a fixture separation module 100 and a transport module 200. The fixture separation module 100 includes a fixture positioning module 110 and a insertion / removal module 120. The fixture positioning module 110 is provided with a fixture positioning groove 111, which is adapted to position the welding fixture 600 in a contour. The insertion / removal module 120 includes a linkage component 121 and an insertion / removal drive component 122. The linkage component 121 is adapted to be connected and fixed with an anti-explosion solder plate 630, and the insertion / removal drive component 122 is adapted to drive the linkage component 121 to move so that the anti-explosion solder plate 630 moves along its insertion / removal direction. The transport module 200 includes a transport drive module 210, a module transport component 220, and a frame transport component 230. The transport drive module 210 is adapted to drive the module transport component 220 and the frame transport component 230 to move. The module transport component 220 is adapted to transport the IGBT module, and the frame transport component 230 is adapted to transport the limiting frame 620.

[0027] According to an embodiment of the present invention, the IGBT module secondary welding fixture separation device, during separation, the welding fixture 600 containing the IGBT module is placed and fixed in the fixture positioning groove 111 of the fixture positioning module 110; then, the transport drive module 210 drives the frame transport assembly 230 to move, moving the limiting frame 620 away from the welding fixture 600, exposing the internal IGBT module and the anti-explosion solder plate 630 embedded thereon; next, the linkage assembly 121 of the insertion / removal module 120 is connected and fixed to the anti-explosion solder plate 630, and the insertion / removal drive assembly 122 drives the linkage assembly 121 to move along the insertion / removal direction (X direction in the figure), smoothly pulling the anti-explosion solder plate 630 out of the IGBT module; finally, the module transport assembly 220, driven by the transport drive module 210, completely removes the IGBT module from the welding fixture 600, completing the complete separation of the welding fixture 600 and the IGBT module.

[0028] According to an embodiment of the present invention, the IGBT module secondary welding fixture separation device automatically moves the limiting frame 620 away from the frame transport component 230, automatically pulls out the anti-explosion solder plate 630 through the insertion and removal module 120, and then transports the IGBT module through the module transport component 220, so that the IGBT module can be completely separated from the welding fixture 600. This process does not require manual contact, which significantly improves production efficiency, ensures product consistency and cleanliness, and effectively improves the process reliability of the fixture separation stage after the secondary welding of the IGBT module.

[0029] In this embodiment, the module handling component 220 and the frame handling component 230 can be suction cups, or of course, grippers.

[0030] In some embodiments, combined with Figure 3As shown, the linkage component 121 includes a plug-in top rod 1211, which is adapted to be plugged into the anti-explosion solder plate 630. The extension direction of the plug-in top rod 1211 is perpendicular to the surface of the anti-explosion solder plate 630. The plug-in drive component 122 is adapted to drive the plug-in top rod 1211 to reciprocate along the plug-in direction.

[0031] In this embodiment, during the process of placing the welding fixture 600 into the fixture positioning groove 111, the insertion top rod 1211 and the anti-explosion solder plate 630 are gradually inserted and engaged, forming a stable lock in the thickness direction of the anti-explosion solder plate 630, ensuring that the insertion top rod 1211 and the anti-explosion solder plate 630 do not slip or tilt during the horizontal pulling process.

[0032] In other embodiments, the linkage component 121 may also be in the form of grippers holding the anti-explosion tin plate 630.

[0033] In some embodiments, combined with Figure 3 As shown, the linkage assembly 121 also includes an active plate 1212, a driven plate 1213, and a force sensor 1214. A plug-in push rod 1211 is connected to the driven plate 1213, and the force sensor 1214 abuts between the active plate 1212 and the driven plate 1213. The plug-in drive assembly 122 is adapted to drive the active plate 1212 to move along the plug-in direction, and the active plate 1212 drives the driven plate 1213 to move via the force sensor 1214.

[0034] In this embodiment, when the plug-in drive assembly 122 drives the active board 1212 to move, the force sensor 1214 transmits the power to the driven board 1213, which in turn drives the plug-in push rod 1211 to pull out the anti-explosion solder plate 630. The force sensor 1214 collects the pulling resistance in real time. When the resistance exceeds the preset threshold, the plug-in drive assembly 122 can immediately stop its operation or reverse its movement, thereby effectively avoiding deformation of the anti-explosion solder plate 630 or damage to the IGBT module due to abnormal conditions such as solder adhesion or local jamming, and realizing dual overload protection for the module and the fixture.

[0035] In some embodiments, combined with Figure 3 As shown, the insertion / removal drive assembly 122 includes an auxiliary slide rail 1221, a synchronous belt 1222, and a synchronous belt drive member 1223. The auxiliary slide rail 1221 and the synchronous belt 1222 extend along the insertion / removal direction. The auxiliary slide rail 1221 is slidably connected to an active plate 1212 and a driven plate 1213. The active plate 1212 is connected to the synchronous belt 1222. The synchronous belt drive member 1223 is adapted to drive the synchronous belt 1222 to move. The insertion / removal module 120 includes two linkage components 121. The two linkage components 121 are respectively arranged on both sides of the fixture positioning module 110 along the insertion / removal direction. The active plates 1212 of the two linkage components 121 are respectively connected to the opposite belt surface of the synchronous belt 1222.

[0036] It should be noted that existing IGBT modules typically have a blast-proof solder plate 630 embedded on each of their left and right sides before soldering. This is due to the symmetrical structure of the IGBT module and the distribution of the soldering areas. In traditional manual disassembly methods, operators need to remove the blast-proof solder plates 630 from both sides one by one. This is not only cumbersome, but also makes it difficult to apply force evenly on both sides. This can easily cause the blast-proof solder plates 630 to tilt or get stuck during removal, thereby damaging the IGBT module body or its internal pins.

[0037] In this embodiment, a single synchronous belt drive 1223 simultaneously drives the linkage components 121 on both sides, and the two active plates 1212 are respectively connected to the opposite belt surface of the synchronous belt 1222. This allows the active plates 1212 on both sides to move synchronously in opposite directions when the synchronous belt 1222 rotates, thereby achieving simultaneous extraction of the anti-explosion solder plates 630 on both sides. This effectively balances the lateral torque during the extraction process, avoids tilting and jamming caused by one side being subjected to force first, and greatly improves the stability and safety of separation. The auxiliary slide rail 1221 provides high-precision guidance for the active plate 1212 and the driven plate 1213, further ensuring that the insertion rod 1211 moves without swaying along the insertion and extraction direction, ensuring a high degree of consistency of the actions on both sides.

[0038] In other embodiments, the plug-in drive assembly 122 may also be a cylinder, a slide module, a lead screw module, etc.

[0039] In some embodiments, combined with Figure 2 As shown, the fixture positioning module 110 includes a limiting seat assembly 112 and a support suction cup assembly 113. The limiting seat assembly 112 is provided with a fixture positioning groove 111. The support suction cup assembly 113 is disposed in the fixture positioning groove 111. The support suction cup assembly 113 includes a support column 1131 and a support suction cup 1132. The support column 1131 is adapted to pass through the pin base 610 to lift the IGBT module. The support suction cup 1132 is disposed on the top surface of the support column 1131. The distance between the top surface of the support column 1131 and the inner bottom surface of the pin base 610 is greater than the distance between the top surface of the pin base 610 and the bottom surface of the anti-explosion solder plate 630.

[0040] It should be noted that some IGBT modules are placed in the pin base 610 using a contour positioning method. To ensure precise alignment between the anti-explosion solder plate 630 and the soldering position, the gap between the periphery of the anti-explosion solder plate 630 and the inner wall of the pin base 610 is designed to be very narrow, almost in contact. With this structure, if the anti-explosion solder plate 630 is directly pulled out along the insertion / removal direction, the inner wall of the pin base 610 will obstruct its movement, preventing it from being easily removed. Therefore, the anti-explosion solder plate 630 must first be lifted upwards a certain distance from the pin base 610 to remove it from its enclosure before horizontal removal is possible.

[0041] In this embodiment, the support column 1131 passes through the pin base 610 to lift the IGBT module, thereby achieving pre-separation between the pin base 610 and the IGBT module, as well as between the anti-explosion solder plate 630 and the pin base 610. The anti-explosion solder plate 630 is driven by the IGBT module to a position higher than the top surface of the pin base 610, thus providing interference-free space for subsequent horizontal removal. At the same time, the support suction cup 1132 on the top surface of the support column 1131 adsorbs and fixes the IGBT module during the lifting process, ensuring that the IGBT module maintains a stable posture throughout the entire process of inserting and removing the anti-explosion solder plate 630, and will not be displaced or tilted due to friction or vibration generated by the insertion and removal action.

[0042] In this embodiment, the limiting seat assembly 112 may include a plurality of limiting blocks 1121. Each limiting block 1121 is provided with an air blowing hole facing the welding area of ​​the IGBT module, which can blow away residual solder points and impurities in the welding area to clean the welding fixture 600.

[0043] In some embodiments, combined with Figure 2 As shown, the fixture separation module 100 also includes a transfer platform 130, which is located on the side of the fixture positioning module 110. The transfer platform 130 is suitable for placing the limiting frame 620. The frame transport assembly 230 is connected to the fixture positioning module 110 and the transfer platform 130.

[0044] In this embodiment, the frame transport assembly 230 connects the fixture positioning module 110 and the transfer platform 130, allowing the limiting frame 620, which has been removed from the welding fixture 600, to be temporarily placed on the transfer platform 130. After the module transport assembly 220 removes the IGBT module, the frame transport assembly 230 transports the limiting frame 620 back from the transfer platform 130 to the pin base 610, completing the recombination of the welding fixture 600. The transfer platform 130 provides a dedicated temporary storage location for the limiting frame 620, preventing it from being lost or mixed up during inter-station transfers. It also ensures that the limiting frame 620 and the pin base 610 can be reassembled, facilitating the reuse of the welding fixture 600 and material management.

[0045] In some embodiments, combined with Figure 1 and Figure 4 As shown, the handling module 200 also includes a board handling assembly 240, which is connected to the movable end of the handling drive module 210. The board handling assembly 240 is connected to the fixture positioning module 110 and the plug-in module 120, and is suitable for picking up and handling the anti-explosion solder board 630.

[0046] In this embodiment, the sheet material handling assembly 240 can be a suction cup, or of course, a gripper.

[0047] In this embodiment, after the insertion / removal module 120 pulls the anti-explosion solder plate 630 out of the IGBT module and the module handling component 220 removes the IGBT module, the board handling component 240 picks up the anti-explosion solder plate 630 and transports it back into the pin base 610, completing the recombination of the anti-explosion solder plate 630 and the pin base 610. This ensures that each anti-explosion solder plate 630 corresponds one-to-one with its corresponding pin base 610, which is beneficial for the standardized management and recycling of the soldering fixture 600.

[0048] In some embodiments, combined with Figure 4 As shown, the transport module 200 also includes an upper camera module 250, which is connected to the movable end of the transport drive module 210. The detection field of view of the upper camera module 250 is perpendicular to the surface of the anti-explosion tin plate 630, and the upper camera module 250 is communicatively connected to the transport drive module 210.

[0049] In this embodiment, the upper camera module 250 performs real-time visual detection on target objects such as the anti-explosion solder board 630, IGBT module, or limiting frame 620, obtains their positional deviation, and performs distance compensation during the handling process. This ensures that the board handling assembly 240, module handling assembly 220, and frame handling assembly 230 can accurately align with the target during the picking and placing actions, eliminating alignment deviations caused by fixture positioning errors, cumulative handling errors, or product consistency differences. This is especially suitable for working conditions where the gap between the anti-explosion solder board 630 and the pin base 610 is extremely narrow and the insertion accuracy requirements are extremely high.

[0050] In some embodiments, combined with Figure 4 As shown, the transport drive module 210 includes a three-axis gantry 211 and multiple rotary drive components 212. The module transport assembly 220, the frame transport assembly 230, and the plate transport assembly 240 are respectively connected to the movable end of the three-axis gantry 211 through a rotary drive component 212. The rotation axis of the rotary drive component 212 is perpendicular to the surface of the anti-explosion tin plate 630.

[0051] In this embodiment, the aforementioned upper camera module 250 performs visual detection on the target object (such as the anti-explosion solder plate 630, IGBT module, and limiting frame 620) to obtain the actual angular deviation of each object in the horizontal plane. Each handling component (referring to the module handling component 220, the frame handling component 230, and the board material handling component 240) rotates independently around the Z-axis through the corresponding rotary drive component 212 to accurately compensate for the angular deviation, so that the posture during picking and placing is completely consistent with the target position. This is especially suitable for scenarios where there is only a small gap between the anti-explosion solder plate 630 and the pin base 610 and the insertion angle is extremely sensitive, effectively avoiding insertion jamming or product damage caused by angular deviation.

[0052] In other embodiments, the transport drive module 210 may also be a robotic arm.

[0053] In some embodiments, combined with Figure 1 As shown, the IGBT module secondary welding fixture separation device also includes a fixture loading / unloading conveyor line 300 and a module unloading conveyor line 400; the fixture separation module 100, the fixture loading / unloading conveyor line 300 and the module unloading conveyor line 400 are arranged along a first direction (Y direction in the figure), which is perpendicular to the insertion / removal direction; the handling module 200 also includes a fixture handling component 260, which is connected to the movable end of the handling drive module 210. The fixture handling component 260 is connected to the fixture loading / unloading conveyor line 300 and the fixture separation module 100, and is suitable for handling the IGBT module secondary welding assembly or welding fixture 600; the module handling component 220 is connected to the module unloading conveyor line 400 and the fixture separation module 100, and is suitable for handling the IGBT module.

[0054] In this embodiment, firstly, the jig loading and unloading conveyor line 300 transports the welding jig 600 carrying the IGBT module to the adjacent jig separation module 100. The handling drive module 210 drives the jig handling assembly 260 to pick up the welding jig 600 as a whole and transfer it into the jig positioning slot 111 of the jig positioning module 110, achieving precise fixation through contour positioning. Subsequently, the frame handling assembly 230 removes the limiting frame 620 from the welding jig 600 and temporarily places it on the transfer platform 130, exposing the internally embedded anti-explosion solder plate 630. The insertion top rod 1211 of the insertion module 120 is vertically inserted into the anti-explosion solder plate 630, and the insertion drive... The moving component 122 drives the linkage component 121 to move and pull out the anti-explosion solder plate 630; then, the module handling component 220 picks up the IGBT module and transfers it to the module unloading conveyor line 400 for output, completing the product unloading; finally, the board material handling component 240 moves the pulled-out anti-explosion solder plate 630 back to its original position in the pin base 610, and the frame handling component 230 moves the limiting frame 620 on the transfer table 130 back to the pin base 610, so that the welding fixture 600 is reassembled. Then, the fixture handling component 260 moves the assembled empty welding fixture 600 to the fixture loading and unloading conveyor line 300 for output, completing the fixture reassembly and unloading.

[0055] In this embodiment, the feeding and discharging are achieved by the fixture loading and unloading conveyor line 300 and the module unloading conveyor line 400, respectively. The entire process of feeding, separating, repackaging and discharging does not require manual intervention, effectively avoiding product contamination or damage that may be caused by manual loading and unloading.

[0056] In this embodiment, the jig transport component 260 is a gripper, but it could also be a suction cup.

[0057] In this embodiment, the IGBT module secondary welding fixture separation device also includes a fixture return conveyor line 500, which is located below the fixture loading and unloading conveyor line 300. Downstream of the fixture loading and unloading conveyor line 300, a cleaning device can be connected. After cleaning the welding fixture 600, the cleaning device returns it to the upstream device of the IGBT module secondary welding fixture separation device via the fixture return conveyor line 500. The cleaned welding fixture 600 can be reused for the welding operation of the IGBT module.

[0058] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An IGBT module secondary welding fixture separation device, used to separate the secondary welding assembly of an IGBT module, the IGBT module secondary welding assembly including an IGBT module and a welding fixture (600), the welding fixture (600) including a pin base (610), a limiting frame (620) and an anti-explosion solder plate (630), characterized in that, include: The fixture separation module (100) includes a fixture positioning module (110) and a plug-in module (120). The fixture positioning module (110) is provided with a fixture positioning groove (111), which is adapted to conformally position the welding fixture (600). The plug-in module (120) includes a linkage component (121) and a plug-in drive component (122). The linkage component (121) is adapted to be connected and fixed to the anti-explosion solder plate (630). The plug-in drive component (122) is adapted to drive the linkage component (121) to move so that the anti-explosion solder plate (630) moves along its plug-in direction. The transport module (200) includes a transport drive module (210), a module transport component (220), and a frame transport component (230). The transport drive module (210) is adapted to drive the module transport component (220) and the frame transport component (230) to move. The module transport component (220) is adapted to transport the IGBT module, and the frame transport component (230) is adapted to transport the limiting frame (620).

2. The IGBT module secondary welding fixture separation device according to claim 1, characterized in that, The linkage component (121) includes a plug-in top rod (1211), which is adapted to be plugged into the anti-explosion solder plate (630). The extension direction of the plug-in top rod (1211) is perpendicular to the surface of the anti-explosion solder plate (630). The plug-in drive component (122) is adapted to drive the plug-in top rod (1211) to reciprocate along the plug-in direction.

3. The IGBT module secondary welding fixture separation device according to claim 2, characterized in that, The linkage assembly (121) further includes an active plate (1212), a driven plate (1213), and a force sensor (1214). The driven plate (1213) is connected to the plug-in top rod (1211), and the force sensor (1214) abuts between the active plate (1212) and the driven plate (1213). The insertion / removal drive assembly (122) is adapted to drive the active plate (1212) to move along the insertion / removal direction, and the active plate (1212) drives the driven plate (1213) to move via the force sensor (1214).

4. The IGBT module secondary welding fixture separation device according to claim 3, characterized in that, The insertion / removal drive assembly (122) includes an auxiliary slide rail (1221), a timing belt (1222), and a timing belt drive member (1223). The auxiliary slide rail (1221) and the timing belt (1222) extend along the insertion / removal direction. The auxiliary slide rail (1221) is slidably connected to the active plate (1212) and the driven plate (1213). The active plate (1212) is connected to the timing belt (1222). The timing belt drive member (1223) is adapted to drive the timing belt (1222) to move. The insertion / removal module (120) includes two linkage components (121). The two linkage components (121) are respectively disposed on both sides of the fixture positioning module (110) along the insertion / removal direction. The active plates (1212) of the two linkage components (121) are respectively connected to the opposite side of the synchronous belt (1222).

5. The IGBT module secondary welding fixture separation device according to any one of claims 1 to 4, characterized in that, The fixture positioning module (110) includes a limiting seat assembly (112) and a support suction cup assembly (113), and the limiting seat assembly (112) is provided with the fixture positioning groove (111). The support suction cup assembly (113) is disposed in the fixture positioning groove (111). The support suction cup assembly (113) includes a support column (1131) and a support suction cup (1132). The support column (1131) is adapted to pass through the pin base (610) to lift the IGBT module. The support suction cup (1132) is disposed on the top surface of the support column (1131). The distance between the top surface of the support column (1131) and the inner bottom surface of the pin base (610) is greater than the distance between the top surface of the pin base (610) and the bottom surface of the anti-explosion solder plate (630).

6. The IGBT module secondary welding fixture separation device according to any one of claims 1 to 4, characterized in that, The fixture separation module (100) also includes a transfer platform (130) disposed on the side of the fixture positioning module (110). The transfer platform (130) is adapted to place the limiting frame (620). The frame transport assembly (230) is connected to the fixture positioning module (110) and the transfer platform (130).

7. The IGBT module secondary welding fixture separation device according to any one of claims 1 to 4, characterized in that, The transport module (200) further includes a board transport assembly (240) connected to the movable end of the transport drive module (210). The board transport assembly (240) is connected to the fixture positioning module (110) and the plug-in module (120) and is suitable for picking up and transporting the anti-explosion tin board (630).

8. The IGBT module secondary welding fixture separation device according to claim 7, characterized in that, The transport module (200) also includes an upper camera module (250), which is connected to the movable end of the transport drive module (210). The detection field of view of the upper camera module (250) is perpendicular to the surface of the anti-explosion tin plate (630). The upper camera module (250) is communicatively connected to the transport drive module (210).

9. The IGBT module secondary welding fixture separation device according to claim 8, characterized in that, The transport drive module (210) includes a three-axis gantry (211) and multiple rotary drive components (212). The module transport assembly (220), the frame transport assembly (230), and the plate transport assembly (240) are each connected to the movable end of the three-axis gantry (211) through one of the rotary drive components (212). The rotation axis of the rotary drive component (212) is perpendicular to the surface of the anti-explosion tin plate (630).

10. The IGBT module secondary welding fixture separation device according to claim 9, characterized in that, The IGBT module secondary welding fixture separation device further includes a fixture loading and unloading conveyor line (300) and a module unloading conveyor line (400); the fixture separation module (100), the fixture loading and unloading conveyor line (300) and the module unloading conveyor line (400) are arranged along a first direction, which is perpendicular to the insertion and extraction direction; The transport module (200) also includes a jig transport component (260), which is connected to the movable end of the transport drive module (210). The jig transport component (260) is connected to the jig loading and unloading conveyor line (300) and the jig separation module (100), and is suitable for transporting the IGBT module secondary welding assembly or the welding jig (600). The module handling assembly (220) is connected to the module unloading conveyor line (400) and the fixture separation module (100), and is suitable for handling the IGBT module.

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