Automatic production and inspection method for IGBT (Insulated Gate Bipolar Translator) module shell

Abstract

The invention discloses an automatic production and inspection method for an IGBT module shell, and the method comprises the following steps: S1, automatic feeding: enabling accessories to be manually added into a vibration disc, and achieving the automatic feeding of the accessories through the vibration disc and a cutting module; s2, automatic clamping is conducted, specifically, a material transferring mechanical arm controls a clamping and grabbing module to clamp and move the accessories into a profiling jig module based on a visual positioning module; s3, batch material transferring is conducted, specifically, a material transferring mechanical arm whole mold taking and placing clamp clamps the accessories in the profiling jig module in a whole mold mode to be embedded; s4, moving and ejecting materials; s5, waste is blown and swept; s6, mold closing and injection molding; s7, resetting circulation; s8, performing visual inspection; and S9, packaging and discharging. According to the automatic production and inspection method for the IGBT module shell, materials are transferred for multiple times through the two mechanical arms, and the number of the mechanical arms is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of automated production and inspection methods for IGBT module housings, and in particular to an automated production and inspection method for IGBT module housings. Background Art

[0002] IGBT module is a modular semiconductor product formed by IGBT (insulated gate bipolar transistor) chip and FWD (freewheeling diode chip) through a specific circuit bridge package; the packaged IGBT module is directly used in inverters, UPS uninterruptible power supplies and other equipment. After searching, it is found that the IGBT module production and processing method in the prior art is typically as follows: Publication No. 1 IGBT module positioning tool and assembly method, the positioning tool includes a tool base plate, the back of the tool base plate is provided with multiple positions of guide positioning columns corresponding to the module fixing holes at one of the two corners of the IGBT module, and the tool base plate is provided with multiple positions of avoidance grooves corresponding to the pins of the IGBT module; the edge of the tool base plate is provided with multiple positions of avoidance grooves corresponding to the module fixing holes at the other corner of the IGBT module; the guide positioning column is perpendicular to the tool base plate. Its main features are that it realizes the precise assembly of the IGBT module, can protect the pins from being damaged during the assembly of the IGBT module, can limit the tightening sequence of the IGBT module fixing screws, ensure that the heat dissipation silicone grease is evenly spread after assembly, and ensure product consistency.

[0003] In summary, the existing IGBT module housing needs to be manually assembled with accessories during the production and preparation process, and then injection molded. The manual assembly efficiency is low and the assembly quality is difficult to guarantee. In view of the above problems, the existing equipment needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide an automated production and inspection method for an IGBT module housing, so as to solve the problem in the above-mentioned background technology that the existing IGBT module housing needs to be manually assembled with accessories during the production and preparation process, and then injection molded, the manual assembly efficiency is low, and the assembly quality is difficult to guarantee.

[0005] To achieve the above object, the present invention provides the following technical solution: an automated production and inspection method for an IGBT module housing, comprising the following steps: S1. Automatic loading: The parts are manually added to the vibration plate, and the parts are automatically loaded through the vibration plate and the cutting module; S2, automatic clamping: the material transfer robot controls the gripping module based on the visual positioning module to clamp and move the accessories to the profiling fixture module; S3, batch material transfer: the material transfer robot whole mold pick-up and place clamp takes the whole mold of the accessories in the profiling fixture module to be embedded; S4, moving the ejector: after the mold opening slide is in place, the IGBT module housing and the material head are ejected, and the product clamp and the material head clamp in the clamping module simultaneously clamp the IGBT module housing and the material head; S5. Blowing away waste: The die surface blowing module on the material transfer robot automatically blows away die surface scraps; S6, mold closing and injection molding: the material transfer robot and the whole mold pick-up and place clamp place the whole mold parts to be embedded into the mold, and the injection molding mechanism starts the injection molding process; S7, reset cycle: the material transfer robot places the finished product on the conveyor, and then repeats the operations of S1-S6; S8, visual inspection: The IGBT module housing is moved to the CCD visual inspection module via a conveyor to automatically inspect the product appearance and size; S9, packaging and unloading: The auxiliary manipulator controls the mobile clamp to move the qualified IGBT module housing to the automatic packaging mechanism for automatic packaging, labeling and palletizing.

[0006] Preferably, the vibration plate is arranged on a base, and an injection molding mechanism is arranged on the front side of the base, the vibration plate is arranged on one side of the profiling jig module, and a material transfer robot is arranged on the other side of the profiling jig module, an auxiliary robot is arranged on the other side of the material transfer robot, and a conveyor is arranged on the front side of the auxiliary robot, and a CCD visual inspection module is installed on the conveyor.

[0007] Preferably, the vibration plate includes a chassis, a hopper, a linear feeder and a direct vibration controller, and the hopper is arranged on the top of the chassis, and the direct vibration controller is arranged on the outer wall of the chassis. The hopper is connected to the linear feeder, and a spring cutting mechanism is arranged on one side of the linear feeder.

[0008] Preferably, the material transfer robot comprises a robot arm, a clamping module and a visual positioning module, and the robot arm is provided with the clamping module, and a visual positioning module is provided on one side of the clamping module.

[0009] Preferably, the clamping and grabbing module includes a single-piece plate clamp, a product clamp, a material head clamp, a surface blowing module and a single-piece whole mold picking and placing clamp, and 8 single-piece whole mold picking and placing clamps are provided.

[0010] Preferably, four groups of jigs are provided on the profiling jig module, and each group of jigs is provided with 2 red inserts and 2 locating pins.

[0011] Preferably, the profiling jig module is provided with a green plate for mounting the jig, and two groups of positioning pins are symmetrically arranged on the green plate.

[0012] Preferably, the injection molding mechanism includes a frame, a mold opening slide, a cylinder and a lifting injection molding assembly, and the lifting injection molding assembly is installed on the top of the frame, and the mold opening slide is arranged below the lifting injection molding assembly, and the mold opening slide is connected to one end of the cylinder.

[0013] Preferably, the mold opening slide is slidably connected to the frame, and a limiting column is provided on the top of the mold opening slide.

[0014] Preferably, the CCD visual inspection module is electrically connected to the auxiliary manipulator and the mobile clamp, and the CCD visual inspection module is arranged above the conveyor, and the conveyor is installed on an external supporting frame.

[0015] Compared with the prior art, the invention has the following beneficial effects: the IGBT module housing automated production and inspection method, The present invention can effectively solve the problem that the existing IGBT module housing needs to be manually assembled with accessories and then injection molded during the production and preparation process, the manual assembly efficiency is low, and the assembly quality is difficult to ensure through the coordinated use of a material transfer robot, an injection molding mechanism, a conveyor, a CCD visual inspection module, an auxiliary robot and a mobile clamp. By automatically placing the accessories and loading and unloading mechanism, the product automatic transplanting mechanism, the injection molding mechanism, the CCD inspection mechanism, the automatic packaging mechanism and the like, and two robot arms transfer materials multiple times, the number of robot arms is reduced, and the efficiency of production and inspection is improved, that is, automatic assembly is achieved, and the entire assembly process does not require manual installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the production and inspection process of the present invention; Figure 2 is an isometric view of the present invention; Figure 3 It is a rear view structural schematic diagram of the present invention; Figure 4 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 5 It is a schematic diagram of the overall structure of the injection molding mechanism of the present invention; Figure 6 For the present invention Figure 2 Enlarged structural diagram at B in the middle.

[0017] In the figure: 1. base; 2. vibration plate; 201. chassis; 202. hopper; 203. linear feeder; 204. direct vibration controller; 3. material transfer robot; 301. robot arm; 302. clamping module; 303. visual positioning module; 4. profiling fixture module; 5. injection molding mechanism; 501. frame; 502. mold opening slide; 503. cylinder; 504. lifting injection molding component; 6. conveyor; 7. CCD visual inspection module; 8. auxiliary robot; 9. mobile clamping. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-6 The present invention provides a technical solution: an automated production and inspection method for an IGBT module housing, comprising the following steps: S1, automatic loading: the accessories are manually added to the vibration plate 2, and the accessories are automatically loaded through the vibration plate 2 and the cutting module; S2, automatic clamping: the material transfer robot 3 controls the clamping module 302 based on the visual positioning module 303 to clamp and move the accessories to the profiling fixture module 4; S3, batch material transfer: the material transfer robot 3 takes the whole mold of the parts in the profiling fixture module 4 and waits for embedding; S4, moving the ejector: after the mold opening slide plate 502 is in place, the IGBT module housing and the material head are ejected, and the product clamp and the material head clamp in the clamping module 302 simultaneously clamp the IGBT module housing and the material head; S5, blowing away waste: the die surface blowing module on the material transfer robot 3 automatically blows away die surface scraps; S6, mold closing and injection molding: the material transfer robot 3 places the mold parts to be embedded into the mold with the whole mold pick-and-place clamp, and the injection molding mechanism 5 starts the injection molding process; S7, reset cycle: the material transfer robot 3 places the finished product on the conveyor 6, and then repeats the operations of S1-S6; S8, visual inspection: The IGBT module housing is moved to the CCD visual inspection module 7 via the conveyor 6 to automatically inspect the product appearance and size; S9, packaging and unloading: the auxiliary manipulator 8 controls the mobile gripper 9 to move the IGBT module housing that has passed the inspection to the automatic packaging mechanism for automatic packaging, labeling and palletizing.

[0020] The vibration plate 2 is arranged on the base 1, and an injection molding mechanism 5 is arranged on the front side of the base 1, the vibration plate 2 is arranged on one side of the profiling jig module 4, and a material transfer robot 3 is arranged on the other side of the profiling jig module 4, an auxiliary robot 8 is arranged on the other side of the material transfer robot 3, and a conveyor 6 is arranged on the front side of the auxiliary robot 8, and a CCD visual inspection module 7 is installed on the conveyor 6.

[0021] Preferably, the vibration plate 2 includes a chassis 201, a hopper 202, a linear feeder 203 and a direct vibration controller 204, and the hopper 202 is arranged on the top of the chassis 201, and the direct vibration controller 204 is arranged on the outer wall of the chassis 201, the hopper 202 is connected to the linear feeder 203, and a spring cutting mechanism is arranged on one side of the linear feeder 203.

[0022] Preferably, the material transfer robot 3 includes a robot arm 301 , a clamping module 302 and a visual positioning module 303 , and the robot arm 301 is provided with the clamping module 302 , and a visual positioning module 303 is provided on one side of the clamping module 302 .

[0023] Preferably, the clamping and grasping module 302 includes a single-piece plate placing clamp, a product clamp, a material head clamp, a surface blowing module and a single-piece whole mold picking and placing clamp, and 8 single-piece whole mold picking and placing clamps are provided.

[0024] Preferably, four groups of jigs are provided on the profiling jig module 4, and each group of jigs is provided with two red inserts and two positioning pins.

[0025] Preferably, the profiling jig module 4 is provided with a green plate for mounting the jig, and two groups of positioning pins are symmetrically arranged on the green plate.

[0026] Preferably, the injection molding mechanism 5 includes a frame 501, a mold opening slide 502, a cylinder 503 and a lifting injection molding assembly 504, and the lifting injection molding assembly 504 is installed on the top of the frame 501, and the mold opening slide 502 is arranged below the lifting injection molding assembly 504, and the mold opening slide 502 is connected to one end of the cylinder 503.

[0027] Preferably, the mold opening slide plate 502 is slidably connected to the frame 501 , and a limiting column is provided on the top of the mold opening slide plate 502 .

[0028] Preferably, the CCD visual inspection module 7 is electrically connected to the auxiliary manipulator 8 and the mobile gripper 9, and the CCD visual inspection module 7 is arranged above the conveyor 6, and the conveyor 6 is installed on an external carrier frame.

[0029] Specifically, in the actual working process, the parts to be processed are manually added into the hopper 202 of the vibration plate 2. The parts in the hopper 202 are controlled to vibrate under the drive of the direct vibration controller 204 so that the parts are moved to the linear feeder 203, and the cutting module limits the parts on the linear feeder 203; at the same time, the material transfer robot 3 controls the clamping module 302 based on the visual positioning module 303 to clamp and move the parts to the profiling fixture module 4; the whole mold picking and placing clamp of the material transfer robot 3 clamps the parts in the profiling fixture module 4 to be embedded; after the mold opening slide plate 502 is in place, the IGBT module housing and the material head are ejected, and the product clamp and the material head clamp in the clamping module 302 clamp the IGBT module housing and the material head at the same time; Then the mold surface blowing module on the material transfer robot 3 automatically blows away the mold surface scraps; the whole mold picking and placing clamp of the material transfer robot 3 places the whole mold accessories to be embedded into the mold, and the injection molding mechanism 5 starts the injection molding process, that is, the cylinder 503 pulls the mold opening slide plate 502 to move, so that the profiling fixture module 4 plugged on its top limit column moves synchronously until it moves to the bottom of the lifting injection molding component 504, and then the lifting injection molding component 504 moves down for injection molding. After the injection molding is completed, the cylinder 503 pulls the mold opening slide plate 502 to reset, and the lifting injection molding component 504 moves up to reset; then the material transfer robot 3 places the finished product on the conveyor 6, and the conveyor 6 drives it to move from left to right, and the material transfer robot 3 then repeats the above operation; The IGBT module shell is moved to the CCD visual inspection module 7 via the conveyor 6 to automatically inspect the product appearance and size. When the CCD visual inspection module 7 detects that the IGBT module shell meets the inspection requirements, the CCD visual inspection module 7 will pass this information to the auxiliary manipulator 8 and the mobile clamp 9; the auxiliary manipulator 8 controls the mobile clamp 9 to move the IGBT module shell that has passed the inspection on the conveyor 6 to the automatic packaging mechanism for automatic packaging, labeling and palletizing. On the contrary, when the inspection fails, the IGBT module shell will be transported to a unified location for storage under the conveyor 6.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 should be included in the protection scope of the present invention.

Claims

1. An automated production and inspection method for an IGBT module housing, characterized in that: The following steps are involved: S1, automatic loading: the accessories are manually added to the vibration plate (2), and the accessories are automatically loaded through the vibration plate (2) and the cutting module; S2, automatic clamping: the material transfer robot (3) controls the clamping module (302) based on the visual positioning module (303) to clamp and move the accessories to the profiling fixture module (4); S3, batch material transfer: the material transfer robot (3) uses the whole mold pick-up and placement clamp to pick up the parts in the profiling fixture module (4) for embedding; S4, moving the ejector: after the mold opening slide plate (502) is in place, the IGBT module housing and the material head are ejected, and the product clamp and the material head clamp in the clamping module (302) simultaneously clamp the IGBT module housing and the material head; S5, blowing away waste: the die surface blowing module on the material transfer robot (3) automatically blows away die surface scraps; S6, mold closing and injection molding: the material transfer robot (3) and the whole mold pick-up and placement clamp place the whole mold parts to be embedded into the mold, and the injection molding mechanism (5) starts the injection molding process; S7, reset cycle: the material transfer robot (3) places the finished product on the conveyor (6), and then repeats the operations of S1-S6; S8, visual inspection: The IGBT module housing is moved to the CCD visual inspection module (7) via the conveyor (6) to automatically inspect the product appearance and size; S9, packaging and unloading: the auxiliary manipulator (8) controls the mobile gripper (9) to move the IGBT module housing that has passed the inspection to the automatic packaging mechanism for automatic packaging, labeling and palletizing.

2. The method for automated production and inspection of an IGBT module housing according to claim 1, characterized in that: The vibration plate (2) is arranged on a base (1), and an injection molding mechanism (5) is arranged on the front side of the base (1); the vibration plate (2) is arranged on one side of a profiling jig module (4), and a material transfer robot (3) is arranged on the other side of the profiling jig module (4); an auxiliary robot (8) is arranged on the other side of the material transfer robot (3), and a conveyor (6) is arranged on the front side of the auxiliary robot (8); and a CCD visual detection module (7) is installed on the conveyor (6).

3. The method for automated production and inspection of an IGBT module housing according to claim 1, characterized in that: The vibration plate (2) comprises a chassis (201), a hopper (202), a linear feeder (203) and a direct vibration controller (204), wherein the hopper (202) is arranged on the top of the chassis (201), and the direct vibration controller (204) is arranged on the outer wall of the chassis (201), the hopper (202) is connected to the linear feeder (203), and a spring-type cutting mechanism is arranged on one side of the linear feeder (203).

4. The method for automated production and inspection of an IGBT module housing according to claim 1, characterized in that: The material transfer robot (3) comprises a robot arm (301), a clamping module (302) and a visual positioning module (303), wherein the robot arm (301) is provided with the clamping module (302), and a visual positioning module (303) is provided on one side of the clamping module (302).

5. The method for automated production and inspection of an IGBT module housing according to claim 4, characterized in that: The clamping and grasping module (302) comprises a single-piece plate placing clamp, a product clamp, a material head clamp, a surface blowing module and a single-piece whole-mould picking and placing clamp, and 8 single-piece whole-mould picking and placing clamps are provided.

6. The method for automated production and inspection of an IGBT module housing according to claim 1, characterized in that: The profiling jig module (4) is provided with four sets of jigs, and each set of jigs is provided with two red inserts and two positioning pins.

7. The method for automated production and inspection of an IGBT module housing according to claim 1, characterized in that: The profiling jig module (4) is provided with a green plate for mounting the jig, and two groups of positioning pins are symmetrically arranged on the green plate.

8. The method for automated production and inspection of an IGBT module housing according to claim 1, characterized in that: The injection molding mechanism (5) comprises a frame (501), a mold opening slide plate (502), a cylinder (503) and a lifting injection molding assembly (504), wherein the lifting injection molding assembly (504) is installed on the top of the frame (501), a mold opening slide plate (502) is arranged below the lifting injection molding assembly (504), and the mold opening slide plate (502) is connected to one end of the cylinder (503).

9. The method for automated production and inspection of an IGBT module housing according to claim 1, characterized in that: The mold opening slide plate (502) is slidably connected to the frame (501), and a limiting column is arranged on the top of the mold opening slide plate (502).

10. The method for automated production and inspection of an IGBT module housing according to claim 1, characterized in that: The CCD visual detection module (7) is electrically connected to the auxiliary manipulator (8) and the mobile gripper (9), and the CCD visual detection module (7) is arranged above the conveyor (6), while the conveyor (6) is mounted on an external carrier frame.

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