IGBT module reactive power test double-channel loading and unloading equipment

Abstract

The utility model relates to the technical field of semiconductor production equipment, and discloses IGBT module reactive power test double-channel loading and unloading equipment, which comprises an assembly line and two industrial mechanical arms, the two industrial mechanical arms are respectively mounted on two sides of the assembly line, the assembly line is used for conveying trays, IGBT modules are placed in the trays, and the two industrial mechanical arms are respectively mounted on the two sides of the assembly line. The industrial mechanical arm is used for grabbing the IGBT module from the test equipment, and the assembly line is a belt conveyor. The beneficial effects of the utility model are that the two industrial mechanical arms grab the IGBT module for testing, the working efficiency is improved, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor production equipment, in particular to dual-channel loading and unloading equipment for reactive power testing of IGBT modules. Background Art

[0002] IGBT is a composite fully controlled voltage-driven power semiconductor device composed of BJT (bipolar junction transistor) and MOS (insulated gate field effect transistor). It has the advantages of high input impedance of MOSFET and low on-state voltage drop of GTR. It is used in electronic circuits. When using IGBT, it is usually tested. Therefore, an IGBT test device is particularly needed.

[0003] The Chinese utility model patent (authorization announcement number: CN112108407A name: an automatic test device for IGBT modules) includes a feeding system, a material handling system, a camera positioning system, a test system, and a QR code scanning system. Feeding trays are installed on both sides, and the test will not be interrupted by feeding. It can realize the grabbing of modules of different sizes in batches, meeting the needs of various models and sizes in actual production. Operators can operate the equipment without special training, and the module placement does not require precise placement, with high fault tolerance. The camera installed at the bottom of the equipment accurately locates the position of the module, and the robot can achieve high-precision placement according to the position and offset angle of the module photographed by the camera. The test tray can be rotated to achieve uninterrupted testing. A QR code reading system is installed to achieve full traceability of test data, but using a single robot for feeding can reduce labor costs, but work efficiency can still be improved. Utility Model Content

[0004] The utility model aims to provide a dual-channel loading and unloading device for reactive power testing of IGBT modules, so as to overcome the shortcomings of the prior art.

[0005] The purpose of the utility model is achieved through the following technical solutions: IGBT module reactive power test dual-channel loading and unloading equipment, including an assembly line and an industrial robot arm, the industrial robot arm is two and respectively installed on both sides of the assembly line, the assembly line is used to convey a pallet, the IGBT module is placed in the pallet, the industrial robot arm is used to grab the IGBT module to the test equipment, the assembly line is a belt conveyor, the assembly line consists of a feeding section, a stacking section and a discharging section, between the feeding section and the stacking section, between the stacking section and the discharging section Blocking cylinders are installed between the material sections and at the end of the discharging section, a stacking frame is fixed on the frame of the stacking section, a slidable A top plate is installed in the stacking frame, the A top plate is used to carry the empty pallet, an A oil cylinder is fixed on the frame of the stacking section below the stacking frame, the empty pallet on the A top plate is pushed into the stacking frame by the A oil cylinder, a limiting cylinder is also fixed on the frame of the stacking section, a limiting plate is fixed on the piston rod of the limiting cylinder, and the limiting plate is used to be stuck under the pallet that slides into the stacking frame.

[0006] Preferably, the industrial robot arm is slidably mounted on one side of the assembly line through a rodless cylinder, and the industrial robot arm slides along the conveying direction of the assembly line.

[0007] Preferably, the B cylinder is fixed on the frame of the feeding section, and a B positioning plate is fixed on the piston rod of the B cylinder, and the B positioning plate is used to position the tray at the end of the feeding section.

[0008] Preferably, a C oil cylinder is fixed on the frame of the discharging section, a C positioning plate is fixed on the piston rod of the C oil cylinder, and the C positioning plate is used to position the tray at the end of the discharging section.

[0009] Preferably, a positioning column is fixed on the A top plate, a positioning hole corresponding to the positioning column is opened on the tray, and the top of the positioning column is conical.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] Two industrial robotic arms grab IGBT modules for testing, which improves work efficiency and reduces labor costs. At the same time, after the IGBT modules that fail the test on the assembly line are transferred, the pallets will be empty and there will be extra pallets. By stacking the extra pallets through the stacking frame, the impact on the subsequent operations can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0013] Figure 2The structure of the utility model is shown in FIG. Figure 2 ;

[0014] Figure 3 It is a schematic diagram of the installation structure of the stacking frame;

[0015] Figure 4 It is the structural schematic diagram of the A top plate;

[0016] In the figure, 1-industrial robot arm, 2-tray, 3-feeding section, 4-stacking section, 5-discharging section, 6-blocking cylinder, 7-stacking frame, 8-A top plate, 9-limiting cylinder, 10-limiting plate, 11-rodless cylinder, 12-positioning column. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme 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 part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0021] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model 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 a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1-3As shown, a dual-channel loading and unloading device for reactive power testing of IGBT modules comprises an assembly line and an industrial robot arm 1. There are two industrial robot arms 1 which are respectively installed on both sides of the assembly line. The assembly line is used to convey a pallet 2. The IGBT module is placed in the pallet 2. The industrial robot arm 1 is used to grab the IGBT module to the testing equipment. The assembly line is a belt conveyor. The assembly line consists of a feeding section 3, a stacking section 4 and a discharging section 5. Blocking cylinders 6 are installed between the feeding section 3 and the stacking section 4, between the stacking section 4 and the discharging section 5, and at the end of the discharging section 5. A stacking frame 7 is fixed on the rack of the stacking section 4. The stacking frame 7 consists of four angle steels which are fixed on the rack in a square shape. The inner corners of the angle steels face the inner side of the square. A slidable A top plate 8 is installed in the stacking frame 7. The A top plate 8 is used to carry an empty pallet 2. An A oil cylinder is fixed on the rack of the stacking section 4 below the stacking frame 7. The empty pallet on the A top plate 8 is moved by the A oil cylinder. The tray 2 is pushed into the stacking frame 7, and a limit cylinder 9 is also fixed on the frame of the stacking section 4. A limit plate 10 is fixed on the piston rod of the limit cylinder 9. The limit plate 10 is used to be stuck under the tray 2 that slides into the stacking frame 7. Two industrial robotic arms 1 grab the IGBT modules for testing, which improves work efficiency and reduces labor costs. At the same time, after the IGBT modules that fail the test on the assembly line are removed from the equipment by the industrial robotic arm 1, the tray 2 will be empty and there will be extra. In order to avoid affecting the operation of the subsequent stage, the excess trays 2 are stacked. During stacking, the empty tray 2 is blocked under the stacking frame 7 by the blocking cylinder 6 at the end of the stacking section 4, and then it is pushed into the stacking frame 7 by the A cylinder. When the empty tray 2 at the bottom of the stacking frame 7 rises to the set position, the limit cylinder 9 starts to insert and clamp the limit plate 10 at the bottom of the empty tray 2 at the bottom, so that the empty trays 2 are stacked to avoid affecting the operation of the subsequent stage.

[0024] In this embodiment, if Figure 1 and 2 As shown, the industrial robot arm 1 is slidably installed on one side of the assembly line through a rodless cylinder 11. The industrial robot arm 1 slides along the conveying direction of the assembly line. After the IGBT module that has passed the test is grabbed by the industrial robot arm 1, it is moved to the discharge section 5 and then placed in the tray 2, and then transported to the next workstation for operation.

[0025] In this embodiment, if Figure 1-3 As shown, a B cylinder is fixed on the frame of the feed section 3, and a B positioning plate is fixed on the piston rod of the B cylinder. The B positioning plate is used to position the pallet 2 at the end of the feed section 3. When the pallet 2 on the assembly line is transported to the end of the feed section 3, it stops moving by blocking the cylinder 6, and then is lifted to separate from the assembly line under the action of the B cylinder to avoid wear on the belt after stopping the movement, and at the same time prevent the vibration of the pallet 2 from affecting the industrial robot arm 1 to grasp the IGBT module.

[0026] In this embodiment, if Figure 1-3As shown, a C cylinder is fixed on the frame of the discharging section 5, and a C positioning plate is fixed on the piston rod of the C cylinder. The C positioning plate is used to position the pallet 2 at the end of the discharging section 5. The empty pallet 2 coming down from the stacking section 4 is stopped at the end of the discharging section 5 by the blocking cylinder 6, and then is lifted to be separated from the assembly line by the action of the C cylinder to avoid wear on the belt after stopping the movement, and to prevent the vibration of the pallet 2 from affecting the industrial robot arm 1 to put the IGBT module that has been tested OK back into the pallet 2.

[0027] In this embodiment, if Figure 4 As shown, a positioning column 12 is fixed on the A top plate 8, and a positioning hole corresponding to the positioning column 12 is opened on the pallet 2. The top of the positioning column 12 is cone-shaped. When the conical positioning column 12 is inserted into the positioning hole, it can form a guide, so that the lifted pallet 2 is automatically guided to the lifted position to avoid stacking due to position deviation.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. IGBT module reactive power test dual-channel loading and unloading equipment, including an assembly line and an industrial robot arm (1), characterized in that: The number of the industrial robot arms (1) is two and they are installed on both sides of the assembly line respectively. The assembly line is used to convey a tray (2). The IGBT module is placed in the tray (2). The industrial robot arm (1) is used to grab the IGBT module from the test equipment. The assembly line is a belt conveyor. The assembly line consists of a feeding section (3), a stacking section (4) and a discharging section (5). Blocking cylinders (6) are installed between the feeding section (3) and the stacking section (4), between the stacking section (4) and the discharging section (5), and at the end of the discharging section (5). The frame of the stacking section (4) is fixed with a blocking cylinder (6). A stacking frame (7) is provided, a slidable A top plate (8) is installed in the stacking frame (7), the A top plate (8) is used to carry the empty pallet (2), an A oil cylinder is fixed on the frame of the stacking section (4) below the stacking frame (7), and the empty pallet (2) on the A top plate (8) is pushed into the stacking frame (7) by the A oil cylinder, a limiting cylinder (9) is also fixed on the frame of the stacking section (4), a limiting plate (10) is fixed on the piston rod of the limiting cylinder (9), and the limiting plate (10) is used to be clamped under the pallet (2) that slides into the stacking frame (7).

2. The IGBT module reactive power test dual-channel loading and unloading equipment according to claim 1, characterized in that: The industrial robot arm (1) is slidably mounted on one side of the assembly line via a rodless cylinder (11), and the industrial robot arm (1) slides along the conveying direction of the assembly line.

3. The IGBT module reactive power test dual-channel loading and unloading equipment according to claim 1, characterized in that: A B oil cylinder is fixed on the frame of the feeding section (3), and a B positioning plate is fixed on the piston rod of the B oil cylinder. The B positioning plate is used to position the tray (2) at the end of the feeding section (3).

4. The IGBT module reactive power test dual-channel loading and unloading equipment according to claim 1, characterized in that: A C oil cylinder is fixed on the frame of the discharging section (5), and a C positioning plate is fixed on the piston rod of the C oil cylinder. The C positioning plate is used to position the tray (2) at the end of the discharging section (5).

5. The IGBT module reactive power test dual-channel loading and unloading equipment according to claim 1, characterized in that: A positioning column (12) is fixed on the A top plate (8), a positioning hole corresponding to the positioning column (12) is opened on the tray (2), and the top of the positioning column (12) is conical.

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