CN218769430U

CN218769430U - Full-automatic production line for power modules

Info

Publication number: CN218769430U
Application number: CN202222896075.5U
Authority: CN
Inventors: 徐斌; 汤宇佳
Original assignee: Zhejiang Gulan Electronic Technology Co ltd
Current assignee: Zhejiang Gulan Electronic Technology Co ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-03-28
Anticipated expiration: 2032-11-01

Abstract

The full-automatic power module production line comprises a full-automatic power module production line body for dispensing and packaging plastic shells and DBCs, wherein the full-automatic power module production line body is composed of a first transmission mechanism and a second transmission mechanism which are used for transmitting plastic shell and DBC workpieces, plastic shell processing equipment and DBC processing equipment are composed, the plastic shell processing equipment comprises a feeding mechanism, a plastic shell cleaning mechanism, a plastic shell dispensing mechanism and a first detection mechanism, the DBC processing equipment comprises the feeding mechanism, the second detection mechanism and a turnover mechanism, a combination mechanism is arranged between the two transmission mechanisms, the plastic shells and the DBCs are continuously and simultaneously conveyed through the two transmission mechanisms, after processing and detection, the plastic shells and the DBCs are combined through the combination mechanism. The utility model discloses have adjacent plasma cleaning machine and full-automatic point gum machine, can be continuous the washing of moulding the shell and glue, function with the DBC processing equipment parallel simultaneously, avoided the inefficiency and the high problem of wastrel of the too big production of independent function time interval.

Description

Full-automatic production line for power modules

Technical Field

The utility model relates to a full automatic production line of power module belongs to power module production facility technical field.

Background

A power module is a product type slightly larger than a discrete device, and is a semiconductor device used to construct an electronic power base unit. The module is generally composed of chips of power devices such as IGBT and diode, the chips are arranged and combined into various circuit basic units, aluminum wires with different wire diameters are welded, and the finished product power module is formed through the protection and encapsulation of silica gel and a plastic shell. Power modules are widely used in the fields of automobiles, frequency converters, and the like.

In the traditional power device packaging process, the loading and unloading and the plastic shell packaging are generally manually operated, so that the reworking and the defect of the product are caused due to the change of personnel and the operation level of operators, and the production efficiency and the yield of the device are greatly fluctuated. And because different operations require the use of different equipment, multiple manual transfers are required, where unpredictable risks can result in poor product and rework. To this end, a fully automated production of power modules is devised to overcome the above problems.

Disclosure of Invention

The utility model provides a simple structure uses convenient operation, the full automatic production line of efficient power module.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a full-automatic production line of power module, includes the full-automatic production line body of power module that is used for carrying out some glue encapsulation to moulding the shell and DBC, the full-automatic production line body of power module comprises first transport mechanism and the second transport mechanism that are used for transmitting respectively and mould the shell and DBC work piece in two parallels, and set up respectively at first transport mechanism and the shell processing equipment and the DBC processing equipment of second transport mechanism one side, wherein mould the shell processing equipment and include feed mechanism, mould shell wiper mechanism, mould shell point gum machine and first detection mechanism, and feed mechanism sets up the feed inlet department at first transport mechanism, mould shell wiper mechanism and mould shell point gum machine set up the middle part position near first transport mechanism, first detection mechanism sets up the position near the discharge gate at first transport mechanism, the DBC processing equipment includes feed mechanism, second detection mechanism and tilting mechanism, feed mechanism sets up the feed inlet department at second transport mechanism, second detection mechanism sets up the middle part position near second transport mechanism, the position near second transport mechanism is near the discharge gate, still be provided with the combination of second transport mechanism and DBC and carry out the combination transport mechanism and DBC through the transport mechanism.

Preferably, the method comprises the following steps: the feeding mechanism of the plastic shell processing equipment and the DBC processing equipment is composed of a plurality of feeding trays and conveying line trays which are placed on the conveying mechanism and used for supporting plastic shells to be processed or DBC workpieces, a mechanical arm arranged between the first conveying mechanism and the second conveying mechanism and used for transferring the plastic shells to be processed or the DBC workpieces, and a motor used for driving the mechanical arm, the mechanical arm is driven by the motor to grab the plastic shells or the DBC workpieces, the plastic shells are placed on the trays, and then the plastic shells and the DBC workpieces are conveyed through the two conveying mechanisms.

Preferably, the method comprises the following steps: the turnover mechanism of the DBC processing equipment is composed of a standard mechanical electric claw and a motor used for driving the standard mechanical electric claw, the standard mechanical electric claw is used for turning over the DBC from a state that a chip faces upwards to a state that the chip faces downwards, and then the DBC and a plastic shell are grabbed to be combined on a combination mechanism through a mechanical arm arranged on one side of the mechanical electric claw.

Preferably, the method comprises the following steps: mould shell processing equipment's first detection mechanism comprises triaxial motion frame and the purple light camera that has the inductor of erectting in the triaxial motion frame, second detection mechanism comprises triaxial motion frame and the optical camera that erects and have the inductor in the triaxial motion frame, and first detection mechanism's purple light camera is continuous purple light scanning discernment, second detection mechanism's optical camera is fixed point camera and shoots the discernment, and first detection mechanism and second detection mechanism still link to each other with outside computer respectively for collecting and showing operational data and picture, the operating condition of conveniently looking over equipment is convenient for in time discover the problem.

Preferably, the method comprises the following steps: mould shell wiper mechanism of shell processing equipment comprises at least one plasma cleaning machine and an exhaust apparatus, and wherein the plasma cleaning machine includes the triaxial motion module, and gas jet head and jet head controller jet-propelled through jet head controller control gas jet head, exhaust apparatus includes the exhaust duct, sets up the metal shroud that sprays paint in the exhaust duct outside to and the outside air exhaust equipment who links to each other with the exhaust duct, wherein the metal shroud that sprays paint is used for preventing that the plastics piece from splashing other stations.

Preferably, the method comprises the following steps: the plastic shell dispensing mechanism of the plastic shell processing equipment is composed of at least one standard full-automatic dispensing machine.

Compared with the current manual plastic shell packaging technology, the utility model discloses a full-automatic production line of power module has adjacent plasma cleaning machine and full-automatic point gum machine, and the washing and the point that mould the shell can be continuous are glued, operate with the DBC processing equipment parallel simultaneously, have avoided the too big inefficiency and the high problem of wastrel of production of independent function time interval. The utility model has the advantages of simple structure, convenient use and operation, high efficiency and the like.

Drawings

Fig. 1 is an overall frame diagram of the present invention.

Fig. 2 is a schematic diagram of a DBC conveyor line tray in the present invention.

Fig. 3 is a schematic view of the plastic case conveyor line tray of the present invention.

Fig. 4 is a structural schematic diagram of the plastic shell loading tray in the present invention.

Fig. 5 is a structural schematic diagram of a DBC loading tray in the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto. As shown in fig. 1, a power module full-automatic production line comprises a power module full-automatic production line body for dispensing and packaging a plastic shell and a DBC, wherein the power module full-automatic production line body 1 is composed of a first conveying mechanism 2 and a second conveying mechanism 22 which are parallel and respectively used for conveying the plastic shell and the DBC workpiece, a plastic shell processing device 3 and a DBC processing device 4, wherein the plastic shell processing device 3 is arranged at one side of the first conveying mechanism 2, the second conveying mechanism 22 is arranged at one side of the DBC processing device 4, the plastic shell processing device 3 comprises a feeding mechanism, a plastic shell cleaning mechanism 5, a plastic shell dispensing mechanism 6 and a first detection mechanism 7, and the feeding mechanism is arranged at a feeding port of the first conveying mechanism 2, the plastic shell cleaning mechanism 5 and the plastic shell glue dispensing mechanism 6 are arranged at the middle position close to the first conveying mechanism 2, the first detection mechanism 7 is arranged at the position, close to the discharge port, of the first conveying mechanism 2, the DBC processing equipment 4 comprises a feeding mechanism, a second detection mechanism 8 and a turnover mechanism 9, the feeding mechanism is arranged at the feed port of the second conveying mechanism 22, the second detection mechanism 8 is arranged at the middle position close to the second conveying mechanism 22, the turnover mechanism 9 is arranged at the position, close to the discharge port, of the second conveying mechanism 22, a combination mechanism 10 is further arranged on one side, close to the discharge port, between the first conveying mechanism and the second conveying mechanism, the plastic shell and the DBC are simultaneously conveyed, processed and detected through the first conveying mechanism and the second conveying mechanism, and then the plastic shell and the DBC are combined through the combination mechanism 10.

The feeding mechanisms of the plastic shell processing equipment 3 and the DBC processing equipment 4 are composed of a plurality of feeding trays 11 and conveyor line trays 12 which are placed on the conveying mechanisms and used for supporting plastic shells to be processed or DBC workpieces, a mechanical arm 13 which is arranged between the first conveying mechanism 2 and the second conveying mechanism 22 and used for transferring the plastic shells to be processed or the DBC workpieces, and a motor 20 used for driving the mechanical arm 13, wherein the mechanical arm 13 is driven by the motor 20 to grab the plastic shells or the DBC workpieces and place the plastic shells or the DBC workpieces on the trays, and then the plastic shells and the DBC workpieces are conveyed through the two conveying mechanisms.

The turnover mechanism 9 of the DBC processing device 4 is composed of a standard mechanical electric claw 14 and a motor for driving the standard mechanical electric claw 14, the standard mechanical electric claw 14 is used for turning the DBC from a state that a chip faces upwards to a state that the chip faces downwards, and the mechanical arm 21 arranged on one side of the mechanical electric claw 14 is used for grabbing the DBC and the plastic shell to the combination mechanism 10 for combination.

Mould shell processing equipment 3's first detection mechanism 7 comprises triaxial motion frame and the purple light camera 15 that has the inductor of erectting in the triaxial motion frame, second detection mechanism 8 comprises triaxial motion frame and the optical camera 16 that erects and have the inductor in the triaxial motion frame, and first detection mechanism's purple light camera 15 is continuous purple light line scanning discernment, second detection mechanism 8's optical camera 16 is the fixed point camera discernment of shooing, and first detection mechanism 7 and second detection mechanism 8 still link to each other with outside computer respectively for collecting and showing operational data and picture, the operating condition of conveniently looking over equipment is convenient for in time discover the problem.

The plastic shell cleaning mechanism 5 of the plastic shell processing equipment 3 comprises at least one plasma cleaning machine 17 and an exhaust device 18, wherein the plasma cleaning machine 17 comprises a triaxial movement module, a gas injection head and a injection head controller, the gas injection head is controlled by the injection head controller to inject gas, the exhaust device 18 comprises an exhaust pipeline, a paint spraying metal shield arranged outside the exhaust pipeline, and external air extraction equipment connected with the exhaust pipeline, wherein the paint spraying metal shield is used for preventing plastic fragments from splashing to other stations.

The plastic shell dispensing mechanism 6 of the plastic shell processing equipment 3 is composed of at least one standard full-automatic dispensing machine 19. The standard full-automatic dispensing machine is a standard part, and the structure and the connection mode are completely consistent with those of a common full-automatic dispensing machine.

The working process of the utility model is as follows:

fig. 1 is an overall frame diagram of the present invention, and the fully automatic power module production line includes two transfer mechanisms (DBC transfer mechanism and plastic shell transfer mechanism), and a plurality of manipulators (manipulator 13 and standard mechanical gripper 14 and manipulator arm 21); the processing equipment distributed on the plastic shell conveying mechanism comprises a feeding tray for placing a plastic shell, a conveyor line tray, a plastic shell cleaning mechanism, a plastic shell dispensing mechanism and a first detection mechanism; the processing equipment that distributes on the DBC transport mechanism is the material loading tray that is used for placing the DBC respectively, transfer chain tray, second detection mechanism, tilting mechanism. The structural schematic diagrams of the DBC conveyor line tray, the plastic shell feeding tray and the DBC feeding tray are respectively shown in fig. 2, fig. 3, fig. 4 and fig. 5.

It should be particularly noted that the power module full-automatic production line is further equipped with some functional modules, such as a control system, a power distribution cabinet and the like, so as to conveniently control the whole device and realize the opening or closing; the DBC is a semi-finished product module which is subjected to chip welding, aluminum wire welding, cleaning and inspection and PIN needle welding; the plastic shell needs to be printed with mark contents meeting the requirements of the company through a marking machine, and an operator manually feeds the mark contents to the feeding tray.

The main function of the full-automatic power module production line is to package the semi-finished DBC and the plastic shell together through sealant.

For the detailed description of the functions, the plastic shell is clamped from a plastic shell feeding tray through a manipulator and is placed on a conveyor line tray; the conveying line tray is conveyed to the plastic shell cleaning mechanism through the plastic shell conveying mechanism, the plasma cleaning machine is automatically started after the induction of the inductor, the plastic shell is cleaned by spraying flame according to a set program, meanwhile, the exhaust device continuously extracts generated waste gas through a pipeline, and the metal shield prevents plastic fragments from splashing to other stations; the cleaned plastic shell is transmitted to a plastic shell dispensing mechanism, and after being sensed by a sensor arranged in the plastic shell dispensing mechanism, a dispensing machine is automatically started to coat the sealant according to set process parameters; after coating, the sealant enters a first detection mechanism, the coating condition of the sealant is scanned through a purple light camera, the camera sends data to computer software, and the customized software automatically judges whether the sealant is coated in a missing or offset manner according to process parameters, so that the product quality is ensured. And finally, conveying the qualified plastic shell after processing to a combination mechanism for waiting for assembly. After the manipulator grabs the plastic shell, synchronously grabbing a DBC from the feeding tray, and placing the DBC on the conveyor line tray; the conveyor line tray is conveyed to the second detection mechanism through the DBC conveying mechanism, after a sensor in the second detection mechanism senses the tray, the second detection mechanism automatically starts a camera to shoot according to a set program, data are transmitted to software through the controller, and after the software calculates according to set technological parameters, whether the PIN needle position degree and the verticality are qualified or not is automatically judged. Qualified products are conveyed to the turnover mechanism through the DBC conveying mechanism, after the products are sensed, the turnover claw automatically grasps the products, overturns 180 degrees, then moves to the designated position set by the equipment, and then the DBC on the turnover claw is grabbed to the combination mechanism by the manipulator to be assembled. And the transmission mechanisms on the two sides are simultaneously processed, so that one DBC is ensured to be assembled with one plastic shell. The data collection device (the first detection mechanism, the second detection mechanism, an external computer and other equipment) can be connected with each module mechanism, and the working state of the equipment can be read in real time, so that an administrator can quickly complete the inspection and maintenance of the equipment by looking up past records.

Compared with the existing manual plastic shell packaging technology, the utility model discloses a full-automatic production line of power module has adjacent plasma cleaning machine and full-automatic dispensing machine, and the washing and the point that mould the shell can be continuous are glued, operate with the DBC processing equipment parallel simultaneously, have avoided the too big inefficiency and the high problem of wastrel of production of independent function time interval.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a full automatic production line of power module, is including being used for carrying out the full automatic production line body of power module of some encapsulation to moulding the shell and DBC, its characterized in that: the power module full-automatic production line body (1) consists of a first conveying mechanism (2) and a second conveying mechanism (22) which are parallel and are respectively used for conveying a plastic shell and a DBC workpiece, and a plastic shell processing device (3) and a DBC processing device (4) which are respectively arranged on one side of the first conveying mechanism (2) and one side of the second conveying mechanism (22), wherein the plastic shell processing device (3) comprises a feeding mechanism, a plastic shell cleaning mechanism (5), a plastic shell glue dispensing mechanism (6) and a first detection mechanism (7), the feeding mechanism is arranged at a feeding port of the first conveying mechanism (2), the plastic shell cleaning mechanism (5) and the plastic shell glue dispensing mechanism (6) are arranged at the middle position close to the first conveying mechanism (2), the DBC processing equipment comprises a feeding mechanism, a second detection mechanism (8) and a turnover mechanism (9), wherein the first detection mechanism (7) is arranged at a position, close to a discharge hole, of a first conveying mechanism (2), the DBC processing equipment (4) comprises a feeding mechanism, the second detection mechanism (8) and the turnover mechanism (9), the feeding mechanism is arranged at a feed hole of a second conveying mechanism (22), the second detection mechanism (8) is arranged at a middle position, close to the second conveying mechanism (22), the turnover mechanism (9) is arranged at a position, close to the discharge hole, of the second conveying mechanism (22), a combination mechanism (10) is further arranged on one side, close to the discharge hole, between the first conveying mechanism and the second conveying mechanism, a plastic shell and a DBC are conveyed through the first conveying mechanism and the second conveying mechanism simultaneously, after processing and detection, the plastic shell and the DBC are combined through a combination mechanism (10).

2. The power module full-automatic production line of claim 1, characterized in that: the feeding mechanism of the plastic shell processing equipment (3) and the DBC processing equipment (4) is composed of a plurality of feeding trays (11) and conveyor line trays (12) which are placed on a conveying mechanism and used for supporting a plastic shell to be processed or a DBC workpiece to be processed, a mechanical arm (13) which is arranged between a first conveying mechanism (2) and a second conveying mechanism (22) and used for transferring the plastic shell to be processed or the DBC workpiece to be processed, and a motor (20) used for driving the mechanical arm (13), wherein the mechanical arm (13) is driven by the motor (20) to grab the plastic shell or the DBC to be placed behind the trays, and then the plastic shell or the DBC workpiece is conveyed by the two conveying mechanisms.

3. The fully automatic power module production line of claim 2, wherein: the turnover mechanism (9) of the DBC processing equipment (4) is composed of a standard mechanical electric claw (14) and a motor used for driving the standard mechanical electric claw (14), the standard mechanical electric claw (14) is used for turning over the DBC from a chip-up state to a chip-down state, and then a mechanical arm (21) arranged on one side of the mechanical electric claw (14) is used for grabbing the DBC and a plastic shell to a combination mechanism (10) for combination.

4. The fully automatic power module production line of claim 2, wherein: mould shell processing equipment (3) first detection mechanism (7) by the triaxial motion frame and erect purple light camera (15) that have the inductor in the triaxial motion frame and constitute, second detection mechanism (8) comprise triaxial motion frame and erect optical camera (16) that have the inductor in the triaxial motion frame, and purple light camera (15) of first detection mechanism are continuous purple light line scanning discernment, optical camera (16) of second detection mechanism (8) are fixed point camera and shoot the discernment, and first detection mechanism (7) and second detection mechanism (8) still link to each other with external computer respectively for collect and show operational data and picture, the operating condition of conveniently looking over equipment is convenient for in time discover the problem.

5. The fully automatic power module production line of claim 4, wherein: the plastic shell cleaning mechanism (5) of the plastic shell processing equipment (3) is composed of at least one plasma cleaning machine (17) and an exhaust device (18), wherein the plasma cleaning machine (17) comprises a three-axis movement module, a gas injection head and an injection head controller, the gas injection head is controlled by the injection head controller to inject gas, the exhaust device (18) comprises an exhaust pipeline, a paint spraying metal shield arranged outside the exhaust pipeline and external air extraction equipment connected with the exhaust pipeline, and the paint spraying metal shield is used for preventing plastic scraps from splashing to other stations.

6. The fully automatic power module production line of claim 5, wherein: the plastic shell glue dispensing mechanism (6) of the plastic shell processing equipment (3) is composed of at least one standard full-automatic glue dispenser (19).