Automatic welding equipment for IGBT (Insulated Gate Bipolar Translator) thermistor

Abstract

The utility model relates to automatic welding equipment for an IGBT (Insulated Gate Bipolar Translator) thermistor. The automatic welding equipment comprises a rack, a material moving assembly, a processing platform assembly and a welding assembly, the welding assembly is installed on the rack on the left side of the machining platform assembly, and the material moving assembly is installed on the rack on the right side of the machining platform assembly. A feeding and discharging unit is installed on the machine frame on the front side of the machining platform assembly. According to the welding system for the NTC of the IGBT module based on laser welding, the two ends of the NTC are heated at the same time through double laser beams, welding can be rapidly carried out in combination with visual automatic positioning, the welding time is greatly saved, the welding yield of IGBT thermistors is increased, and the production efficiency is improved. The welding problems of deviation, tombstone standing and the like caused by the temperature difference between the two ends of the NTC are solved fundamentally.

Description

Technical Field

[0001] The utility model relates to the technical field related to semiconductor processing, and in particular to an IGBT thermistor welding automation device. Background Art

[0002] IGBT modules are modular semiconductor products composed of IGBTs (insulated gate bipolar transistors) and freewheeling diodes (FWDs) connected and packaged via a specific circuit bridge. These IGBT modules are directly applicable to devices such as inverters and uninterruptible power supplies (UPSs). IGBT modules offer advantages such as energy efficiency, easy installation and maintenance, and stable heat dissipation. As energy conservation and environmental protection become increasingly common, IGBT modules are expected to become increasingly popular in the market.

[0003] In the design and application of power semiconductor modules (IGBT modules), the chip temperature of the IGBT module is a crucial parameter in power electronics systems. Because it's impossible to directly measure the chip temperature during system operation, other temperature sensors are required, such as the NTC resistor built into the IGBT module. Based on the real-time value of the NTC resistor and by querying a pre-measured NTC resistance-temperature curve, the chip temperature can be indirectly estimated. Therefore, the reliability of the NTC soldering fixation is particularly important.

[0004] In summary, the problem in the prior art is that the installation of NTC resistors in the industry currently adopts the method of reflow soldering after mounting. This method has the problem of NTC resistor tombstoning and cold soldering. The main reason for this problem is that the temperature difference in the furnace causes the two ends of the thermistor to not melt at the same time. One melts first and then the other melts. This will cause the side of the thermistor that melts first to rise due to the tension of the solder paste, resulting in tombstoning.

[0005] In view of the above-mentioned defects, the designer actively carried out research and innovation in order to create an IGBT thermistor welding automation equipment to make it more valuable for industrial use. Utility Model Content

[0006] In order to solve any of the above technical problems, the purpose of the present invention is to provide an IGBT thermistor welding automation equipment.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] An IGBT thermistor welding automation equipment, comprising a frame, a material transfer assembly, a processing platform assembly and a welding assembly;

[0009] A welding assembly is installed on the frame on the left side of the processing platform assembly, and a material moving assembly is installed on the frame on the right side of the processing platform assembly;

[0010] A loading and unloading unit is installed on the frame on the front side of the processing platform assembly, and the loading and unloading unit includes an assembly line assembly that runs the material in the left and right directions. The loading and unloading assembly is installed on the frame on the left side of the assembly line assembly, the feeding assembly is installed on the frame directly below the loading and unloading assembly on the left, and the feeding side pushing mechanism is installed on the frame behind the feeding assembly on the left. The loading and unloading assembly is installed on the frame on the right side of the assembly line assembly, the feeding assembly is installed on the frame directly below the loading and unloading assembly on the right, and the discharging side pushing mechanism is installed on the frame behind the feeding assembly on the right.

[0011] As a further improvement of the present invention, the loading and unloading assembly includes a loading and unloading platform, the bottom of which is installed on the frame below through a number of loading and unloading brackets, a material changing plate is arranged above the loading and unloading platform, and a material changing cylinder is installed on the loading and unloading platform on the right side of the material changing plate. The material changing cylinder drives the material changing plate to move in the front and back directions, and a number of material changing cavities for storing storage boxes are evenly distributed on the material changing plate along the front and back directions, and a drop hole is opened on the loading and unloading platform for the storage box to fall freely.

[0012] As a further improvement of the present invention, the feeding assembly includes a feeding lifting electric cylinder, which is installed on the frame through a feeding electric cylinder mounting base, and the driving end at the top of the feeding lifting electric cylinder drives the feeding positioning platform above to move in the vertical direction.

[0013] As a further improvement of the present invention, the feed side pushing mechanism includes a feed cylinder, which is installed on the frame through a feed cylinder seat. The driving end of the feed cylinder drives the feed tray hook to move in the left and right directions, and a feed push rod is installed on the feed tray hook.

[0014] As a further improvement of the present invention, the assembly line assembly includes a fixed line body and a movable line body from front to back, and conveyor belts running along the left and right directions are installed on the inner sides of the fixed line body and the movable line body, and a variable pitch synchronous belt drive mechanism is installed on the frame on the rear side of the movable line body. The variable pitch synchronous belt drive mechanism drives the movable line body to move in the front and rear directions through the variable pitch guide screw and the screw nut, and the variable pitch guide screw is installed on one side of the fixed line body through a bearing and is connected to the variable pitch drive handwheel. A clamping cylinder is installed on the top of the movable line body near the right side, and a lifting and blocking cylinder is installed in the transmission cavity between the fixed line body and the movable line body and near the right side.

[0015] As a further improvement of the present invention, the discharging side pushing mechanism includes a discharging cylinder, which is installed on the frame through a discharging cylinder seat. The driving end of the discharging cylinder drives the discharging tray hook to move in the left and right directions. A hooking cylinder is installed on the discharging tray hook, and the driving end of the hooking cylinder drives the hooking block below to move in the vertical direction.

[0016] As a further improvement of the present invention, the material moving assembly includes a material moving top frame, the bottom of the material moving top frame is installed on the frame below through several material moving brackets, the material moving Y-axis module installed on the material moving top frame drives at least one material moving Z-axis module to move in the forward and backward directions through the material moving plate, and the material moving Z-axis module drives the suction cup frame below to move in the vertical direction, and several suction cups are installed at the bottom of the suction cup frame.

[0017] As a further improvement of the present invention, the processing platform assembly includes a processing platform plate, on which several material guide grooves are evenly distributed along the front and rear directions. The jig plate can move freely in the left and right directions in the material guide grooves. A drawer cylinder for driving the jig plate to move in the left and right directions is installed on the processing platform plate on the right side of the material guide groove. An upper pressure plate for covering the jig plate is provided above the left side of the material guide groove. A downward pressure cylinder is installed on the processing platform plate below the upper pressure plate through a downward pressure cylinder seat. The driving end of the top of the downward pressure cylinder drives the upper upper pressure plate to move in the vertical direction through the downward pressure adapter frame, and a heating table is installed at the bottom left side of the processing platform plate.

[0018] As a further improvement of the present invention, the welding assembly includes a welding X-axis module installed on the frame, the welding X-axis module drives the upper welding Y-axis module to move in the left and right directions, the welding Y-axis module drives the upper welding Z-axis module to move in the front and back directions, and the welding Z-axis module drives the welding head mounting plate on the right to move in the vertical direction. The welding head, height measuring sensor and positioning image are installed on the welding head mounting plate.

[0019] By means of the above solution, the present invention has at least the following advantages:

[0020] The utility model realizes a welding system for the NTC of IGBT modules based on laser welding. It utilizes the dual beams of laser to heat both ends of the NTC at the same time. Combined with visual automatic positioning, it can quickly perform welding, greatly saving welding time, improving the welding yield of IGBT thermistors, and fundamentally solving the welding problems such as offset and tombstone formation caused by the temperature difference between the two ends of the NTC.

[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a structural diagram of an IGBT thermistor welding automation equipment of the utility model;

[0024] Figure 2 yes Figure 1 Schematic diagram of the structure of the loading and unloading components;

[0025] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle feeding component;

[0026] Figure 4 yes Figure 1 Schematic diagram of the structure of the side push mechanism for feeding in the middle;

[0027] Figure 5 yes Figure 1 The structural diagram in ;

[0028] Figure 6 yes Figure 1 Schematic diagram of the structure of the side push mechanism for the middle discharge;

[0029] Figure 7 yes Figure 1 Schematic diagram of the structure of the intermediate material transfer component;

[0030] Figure 8 yes Figure 1 Schematic diagram of the structure of the processing platform components;

[0031] Figure 9 yes Figure 1 Schematic diagram of the structure of the welding assembly.

[0032] The meanings of the reference numerals in the figures are as follows.

[0033] Frame 1, loading and unloading assembly 2, feeding assembly 3, feeding side pushing mechanism 4, assembly line assembly 5, discharging side pushing mechanism 6, material moving assembly 7, processing platform assembly 8, welding assembly 9;

[0034] Loading and unloading platform 201, loading and unloading bracket 202, material changing plate 203, storage box 204, material changing cylinder 205;

[0035] Feeding electric cylinder 301, feeding electric cylinder mounting base 302, feeding positioning platform 303;

[0036] Feed cylinder base 401, feed cylinder 402, feed tray hook 403, feed push rod 404;

[0037] Fixed line body 501, movable line body 502, variable pitch synchronous belt drive mechanism 503, variable pitch guide screw 504, variable pitch drive hand wheel 505, clamping cylinder 506, lifting stop cylinder 507;

[0038] Discharging cylinder base 601, discharging cylinder 602, discharging plate hook 603, hooking cylinder 604, hooking block 605;

[0039] Material transfer bracket 701, material transfer top frame 702, material transfer Y-axis module 703, material transfer plate 704, material transfer Z-axis module 705, suction cup frame 706, suction cup 707;

[0040] Processing platform plate 801, drawer cylinder 802, material guide trough 803, fixture plate 804, upper pressing plate 805, heating table 806, lower pressing cylinder seat 807, lower pressing cylinder 808, lower pressing adapter frame 809;

[0041] Welding X-axis module 901 , welding Y-axis module 902 , welding Z-axis module 903 , welding head mounting plate 904 , welding head 905 , height measurement sensor 906 , positioning image 907 . DETAILED DESCRIPTION

[0042] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0043] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0044] Example

[0045] like Figures 1 to 9 As shown,

[0046] An IGBT thermistor welding automation equipment includes a frame 1, a material moving component 7, a processing platform component 8 and a welding component 9;

[0047] A welding assembly 9 is installed on the frame 1 on the left side of the processing platform assembly 8, and a material moving assembly 7 is installed on the frame 1 on the right side of the processing platform assembly 8;

[0048] A loading and unloading unit is installed on the frame 1 on the front side of the processing platform assembly 8, and the loading and unloading unit includes an assembly line assembly 5 that runs the material in the left and right directions. A loading and unloading assembly 2 is installed on the frame 1 on the left side of the assembly line assembly 5, a feeding assembly 3 is installed on the frame 1 directly below the loading and unloading assembly 2 on the left side, and a feeding side pushing mechanism 4 is installed on the frame 1 on the rear side of the feeding assembly 3 on the left side. A loading and unloading assembly 2 is installed on the frame 1 on the right side of the assembly line assembly 5, a feeding assembly 3 is installed on the frame 1 directly below the loading and unloading assembly 2 on the right side, and a discharging side pushing mechanism 6 is installed on the frame 1 on the rear side of the feeding assembly 3 on the right side.

[0049] Preferably, the loading and unloading assembly 2 includes a loading and unloading platform 201, the bottom of which is mounted on the frame 1 below via a plurality of loading and unloading brackets 202. A reloading plate 203 is disposed above the loading and unloading platform 201. A reloading cylinder 205 is mounted on the loading and unloading platform 201 to the right of the reloading plate 203. The reloading cylinder 205 drives the reloading plate 203 to move in the front-to-back direction. The reloading plate 203 is provided with a plurality of reloading cavities for storing storage boxes 204, distributed evenly along the front-to-back direction. A drop hole is also provided on the loading and unloading platform 201 for the free fall of the storage boxes 204. Furthermore, an adjustment plate is mounted on the reloading plate 203 above the reloading cavity to regulate the position of the storage boxes 204.

[0050] Preferably, the feed assembly 3 includes a feed lifting electric cylinder 301, which is installed on the frame 1 through a feed cylinder mounting base 302, and the driving end at the top of the feed lifting electric cylinder 301 drives the feed positioning platform 303 above to move in the vertical direction.

[0051] Preferably, the feed side pushing mechanism 4 includes a feed cylinder 402, which is installed on the frame 1 through a feed cylinder seat 401. The driving end of the feed cylinder 402 drives the feed tray hook 403 to move in the left and right directions, and a feed push rod 404 is installed on the feed tray hook 403.

[0052] Preferably, the assembly line assembly 5 includes a fixed line body 501 and a movable line body 502 from front to back, and a conveyor belt running along the left and right directions is installed on the inner side of the fixed line body 501 and the movable line body 502, and a variable pitch synchronous belt drive mechanism 503 is installed on the frame 1 on the rear side of the movable line body 502. The variable pitch synchronous belt drive mechanism 503 drives the movable line body 502 to move in the front and rear directions through the variable pitch guide screw 504 and the screw nut, and the variable pitch guide screw 504 is installed on one side of the fixed line body 501 through a bearing and is connected to the variable pitch drive handwheel 505, a clamping cylinder 506 is installed on the top near the right side of the movable line body 502, and a lifting and blocking cylinder 507 is installed in the transmission cavity between the fixed line body 501 and the movable line body 502 and near the right side. Among them, when the clamping plate on the right side of the clamping cylinder 506 moves toward the right, it can clamp the material in the conveying process, and the lifting and blocking plate on the top of the lifting and blocking cylinder 507 can block the material during the rising process.

[0053] Preferably, the discharging side pushing mechanism 6 includes a discharging cylinder 602, which is installed on the frame 1 through a discharging cylinder seat 601. The driving end of the discharging cylinder 602 drives the discharging tray hook 603 to move in the left and right directions. A hooking cylinder 604 is installed on the discharging tray hook 603, and the driving end of the hooking cylinder 604 drives the hooking block 605 below to move in the vertical direction.

[0054] Preferably, the material moving assembly 7 includes a material moving top frame 702, the bottom of which is mounted on the lower frame 1 via a plurality of material moving brackets 701, and the material moving Y-axis module 703 mounted on the material moving top frame 702 drives at least one material moving Z-axis module 705 to move in the forward and backward directions via a material moving plate 704, and the material moving Z-axis module 705 drives the suction cup frame 706 below to move in the vertical direction, and a plurality of suction cups 707 are mounted at the bottom of the suction cup frame 706.

[0055] Preferably, the processing platform assembly 8 includes a processing platform plate 801, on which several material guide grooves 803 are evenly distributed along the front-to-back direction. The fixture plate 804 can move freely in the left-right direction in the material guide groove 803. A drawer cylinder 802 for driving the fixture plate 804 to move in the left-right direction is installed on the processing platform plate 801 on the right side of the material guide groove 803. An upper pressure plate 805 for covering the fixture plate 804 is provided above the left side of the material guide groove 803. A downward pressure cylinder 808 is installed on the processing platform plate 801 below the upper pressure plate 805 through a downward pressure cylinder seat 807. The driving end of the top of the downward pressure cylinder 808 drives the upper upper pressure plate 805 to move in the vertical direction through the downward pressure adapter frame 809, and a heating table 806 is installed at the bottom left side of the processing platform plate 801.

[0056] Preferably, the welding assembly 9 includes a welding X-axis module 901 installed on the frame 1, the welding X-axis module 901 drives the upper welding Y-axis module 902 to move in the left and right directions, the welding Y-axis module 902 drives the upper welding Z-axis module 903 to move in the front and back directions, and the welding Z-axis module 903 drives the welding head mounting plate 904 on the right to move in the vertical direction. The welding head 905, the height sensor 906 and the positioning image 907 are installed on the welding head mounting plate 904.

[0057] Brief description of the working process of this utility model:

[0058] 1. Place the storage box 204 loaded with IGBT product modules into the material exchange cavity on the loading and unloading platform 201.

[0059] 2. The sensor on the loading and unloading platform 201 senses the storage box 204, and the positioning cylinder on the loading platform moves to clamp the storage box 204 into place.

[0060] 3. After the upper computer receives the cylinder regularization signal, the feeding positioning platform 303 automatically rises through the feeding lifting electric cylinder 301 until it completely contacts the storage box 204. The feeding platform regularization cylinder opens, and at this time the storage box 204 is already on the feeding positioning platform 303.

[0061] 4. The feed positioning platform 303 carrying the storage box 204 is lowered to the first-level feed position height by the feed lifting electric cylinder 301.

[0062] 5. The pushing mechanism 4 on the feeding side pushes the IGBT product module of the first layer onto the assembly line component 5. The assembly line component 5 senses the presence of the product, and the upper computer controls the assembly line component 5 to start working, transferring the IGBT product module to the position of the lifting and blocking cylinder 507. The lifting and blocking cylinder 507 drives the IGBT product module to the position to be taken from the assembly line.

[0063] 6. The Y-axis material transfer module 703 drives the material picking suction cup 707 to move to the material picking position of the assembly line. The Z-axis material transfer module 705 drives the material picking suction cup down to the IGBT product module. The material picking suction cup 707 contacts the product and starts to absorb the IGBT product module.

[0064] 7. The picking suction cup 707 raises the adsorbed IGBT product module to a transportable height through the material transfer Z-axis module 705, then moves it to the top of the processing platform plate 801 through the material transfer Y-axis module 703, and then descends to the fixture plate 804 on the processing platform plate 801 through the material transfer Z-axis module 705. The picking suction cup 707 breaks the vacuum and places the IGBT product module into the fixture plate 804.

[0065] 8. The drawer cylinder 802 is opened to push the jig plate 804 carrying the IGBT product module onto the heating table 806. The upper pressure plate 805 is pressed down onto the jig plate 804 by the downward pressure cylinder 808 to form a sealed cavity. Nitrogen is opened and enters the sealed cavity of the jig plate 804 through the nitrogen inlet valve, and the oxygen in the cavity is discharged through the exhaust port.

[0066] 9. After the nitrogen concentration reaches the working requirement, the heating table is set to a preheating temperature of 180°C to start preheating the fixture plate 804 carrying the product.

[0067] 10. Preheating is expected to take 30 seconds. After the preheating temperature on the product reaches the preset temperature, the welding assembly 9 with the welding head is moved to the position to be welded, and the positioning image 907 (CCD module) is moved to the top of the fixture plate 804. The five thermistors of the IGBT product module are precisely positioned in sequence through the optical glass on the upper pressure plate 805. Then, the dual-spot welding head 905 is guided to accurately reach the five thermistors to be welded and welded in sequence. During welding, the dual-beam laser with a wavelength of 976nm is emitted by the dual-spot welding head 905 through the optical glass and focused on both ends of the thermistor with preset Sn5Pb, 92.5Ag, and 2.5 solder paste. The eutectic melting point of this solder paste is 287-294°C, and the focused spot is two circular spots with a diameter of 1mm. The center distance between the two beams is adjustable from 0-3mm. For example, for the 0603NTC, the actual center distance between the two beams is 2.5mm. The laser temperature control settings are: ① 180°C, 200ms; ② 220°C, 200ms; ③ 260°C, 300ms; ④ 280°C, 300ms; and ⑤ 320°C, 1200ms. The heat generated by the two laser beams of equal mass melts, wets, and solidifies the solder paste at both ends of the thermistor, forming two identical solder joints. This creates an electrical and mechanical connection between the two ends of the thermistor and the substrate pads, completing the soldering process.

[0068] 11. Open the upper pressure plate 805 by raising the lower pressure cylinder 808 and continue blowing nitrogen to the top of the product.

[0069] 12. The drawer cylinder 802 is closed, and the jig plate 804 carrying the IGBT product module that has been welded is pulled out to the processing platform plate 801. At this time, the nitrogen inlet valve of the upper pressure plate 805 closes the nitrogen, and then the material picking mechanism with the material picking suction cup moves to the top of the jig plate 804, the material transfer Z-axis module 705 descends, and the material picking suction cup 707 contacts the IGBT product module. The suction cup turns on the vacuum and takes the IGBT product module to the waiting position of the assembly line, and the lifting and blocking cylinder 507 descends. The assembly line starts to transfer the IGBT product module to the unloading position, and the discharging side pushing mechanism 6 extends to push the IGBT product module to the first layer position in the upper and lower material components 2, and then the feeding component 3 uses the feeding lifting electric cylinder 301 to align the upper layer position of the storage box 204 with the assembly line component 5 to maintain a height.

[0070] 13. Repeat steps 4 to 10 6 times. The first time you pick up materials, you can place 2 products on the processing platform plate 801. Then, the suction cup puts one product on the plate and takes one product. The welding fixture has 5 sets of fixtures that can perform positioning welding in sequence, cross loading and receiving, and fill the 12 layers of the storage box 204 with welded products.

[0071] 14. The feeding positioning table 303 lifts the storage box 204 filled with welded products to the loading and unloading platform 201 through the feeding lifting electric cylinder 301. The storage box 204 filled with welded products is manually taken away and replaced with an empty storage box 204 to the loading and unloading platform 201.

[0072] 15. The feeding positioning platform 303 lowers the storage box 204 to the receiving position through the feeding lifting electric cylinder 301 to ensure that the first layer of the storage box 204 is at the same height as the assembly line component 5.

[0073] The utility model provides a new welding device that can solve abnormal problems such as resistance offset, cold welding, and tombstoning caused by the existing NTC welding method. It uses a dual laser beam to heat both ends of the NTC at the same time, combined with visual automatic positioning, it can quickly perform welding, greatly saving welding time and improving the welding yield of IGBT thermistors.

[0074] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0075] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An IGBT thermistor welding automation equipment, comprising a frame (1), a material transfer assembly (7), a processing platform assembly (8) and a welding assembly (9); characterized in that: A welding assembly (9) is installed on the frame (1) on the left side of the processing platform assembly (8), and a material moving assembly (7) is installed on the frame (1) on the right side of the processing platform assembly (8); A loading and unloading unit is installed on the frame (1) on the front side of the processing platform assembly (8), and the loading and unloading unit includes an assembly line assembly (5) for moving materials in the left and right directions. A loading and unloading assembly (2) is installed on the frame (1) on the left side of the assembly line assembly (5), a feeding assembly (3) is installed on the frame (1) directly below the loading and unloading assembly (2) on the left side, a feeding side pushing mechanism (4) is installed on the frame (1) on the rear side of the feeding assembly (3) on the left side, a loading and unloading assembly (2) is installed on the frame (1) on the right side of the assembly line assembly (5), a feeding assembly (3) is installed on the frame (1) directly below the loading and unloading assembly (2) on the right side, and a discharging side pushing mechanism (6) is installed on the frame (1) on the rear side of the feeding assembly (3) on the right side.

2. The IGBT thermistor welding automation equipment according to claim 1, characterized in that: The loading and unloading assembly (2) comprises a loading and unloading platform (201), the bottom of which is mounted on the frame (1) below via a plurality of loading and unloading brackets (202), a material changing plate (203) is arranged above the loading and unloading platform (201), a material changing cylinder (205) is mounted on the loading and unloading platform (201) on the right side of the material changing plate (203), the material changing cylinder (205) drives the material changing plate (203) to move in the front-to-back direction, a plurality of material changing cavities for storing storage boxes (204) are uniformly distributed on the loading and unloading plate (203) along the front-to-back direction, and a drop hole for the storage box (204) to fall freely is provided on the loading and unloading platform (201).

3. The IGBT thermistor welding automation equipment according to claim 1, characterized in that: The feed assembly (3) comprises a feed lifting electric cylinder (301), which is mounted on the frame (1) via a feed cylinder mounting base (302). The driving end at the top of the feed lifting electric cylinder (301) drives the feed positioning platform (303) above to move in the vertical direction.

4. The IGBT thermistor welding automation equipment according to claim 1, characterized in that: The feed side pushing mechanism (4) includes a feed cylinder (402), which is installed on the frame (1) through a feed cylinder seat (401). The driving end of the feed cylinder (402) drives the feed tray hook (403) to move in the left and right directions, and a feed push rod (404) is installed on the feed tray hook (403).

5. The IGBT thermistor welding automation equipment according to claim 1, characterized in that: The assembly line assembly (5) includes a fixed line body (501) and a movable line body (502) from front to back, and a conveyor belt running in the left and right directions is installed on the inner sides of the fixed line body (501) and the movable line body (502). A variable pitch synchronous belt driving mechanism (503) is installed on the frame (1) on the rear side of the movable line body (502). The variable pitch synchronous belt driving mechanism (503) drives the movable line body (502) to move in the front and rear directions through a variable pitch guide screw (504) and a screw nut. The variable pitch guide screw (504) is installed on one side of the fixed line body (501) through a bearing and is connected to the variable pitch driving hand wheel (505). A clamping cylinder (506) is installed on the top of the movable line body (502) near the right side, and a lifting and blocking cylinder (507) is installed in the conveying cavity between the fixed line body (501) and the movable line body (502) and near the right side.

6. The IGBT thermistor welding automation equipment according to claim 1, characterized in that: The discharging side pushing mechanism (6) includes a discharging cylinder (602), which is mounted on the frame (1) via a discharging cylinder seat (601). The driving end of the discharging cylinder (602) drives the discharging tray hook (603) to move in the left and right directions. A hooking cylinder (604) is mounted on the discharging tray hook (603), and the driving end of the hooking cylinder (604) drives the hooking block (605) below to move in the vertical direction.

7. The IGBT thermistor welding automation equipment according to claim 1, characterized in that: The material moving assembly (7) includes a material moving top frame (702), the bottom of which is mounted on the frame (1) below via a plurality of material moving brackets (701), a material moving Y-axis module (703) mounted on the material moving top frame (702) drives at least one material moving Z-axis module (705) to move in the front-rear direction via a material moving plate (704), and the material moving Z-axis module (705) drives a suction cup frame (706) below to move in the vertical direction, and a plurality of suction cups (707) are mounted on the bottom of the suction cup frame (706).

8. The IGBT thermistor welding automation equipment according to claim 1, characterized in that: The processing platform assembly (8) includes a processing platform plate (801), on which a plurality of material guide grooves (803) are evenly distributed along the front-to-back direction, a fixture plate (804) is freely movable along the left-right direction in the material guide groove (803), a drawer cylinder (802) for driving the fixture plate (804) to move in the left-right direction is installed on the processing platform plate (801) on the right side of the material guide groove (803), and a drawer cylinder (802) for driving the fixture plate (804) to move in the left-right direction is installed on the processing platform plate (801) on the right side of the material guide groove (803). An upper pressing plate (805) for covering the jig plate (804) is provided above, and a downward pressing cylinder (808) is installed on the processing platform plate (801) below the upper pressing plate (805) through a downward pressing cylinder seat (807), and the driving end at the top of the downward pressing cylinder (808) drives the upper upper pressing plate (805) to move in the vertical direction through a downward pressing adapter frame (809), and a heating platform (806) is installed at the bottom left of the processing platform plate (801).

9. The IGBT thermistor welding automation equipment according to claim 1, characterized in that: The welding assembly (9) includes a welding X-axis module (901) mounted on a frame (1), wherein the welding X-axis module (901) drives an upper welding Y-axis module (902) to move in a left-right direction, the welding Y-axis module (902) drives an upper welding Z-axis module (903) to move in a front-back direction, and the welding Z-axis module (903) drives a right welding head mounting plate (904) to move in a vertical direction, and a welding head (905), a height sensor (906), and a positioning image (907) are mounted on the welding head mounting plate (904).

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