CN113334906A - Automatic production equipment for power module - Google Patents
Automatic production equipment for power module Download PDFInfo
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- CN113334906A CN113334906A CN202110535585.7A CN202110535585A CN113334906A CN 113334906 A CN113334906 A CN 113334906A CN 202110535585 A CN202110535585 A CN 202110535585A CN 113334906 A CN113334906 A CN 113334906A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000007639 printing Methods 0.000 claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 238000007650 screen-printing Methods 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000010330 laser marking Methods 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims abstract description 3
- 230000005540 biological transmission Effects 0.000 claims description 23
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 7
- 241000282472 Canis lupus familiaris Species 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 5
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- 239000006071 cream Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 238000003825 pressing Methods 0.000 abstract description 15
- 238000004506 ultrasonic cleaning Methods 0.000 abstract description 5
- 239000004065 semiconductor Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 13
- 238000004080 punching Methods 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 11
- 238000000576 coating method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 230000001681 protective effect Effects 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 6
- 238000007790 scraping Methods 0.000 description 5
- 241000272165 Charadriidae Species 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 241001233242 Lontra Species 0.000 description 1
- 206010051873 Vaginal relaxation Diseases 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
- B41F15/12—Machines with auxiliary equipment, e.g. for drying printed articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/16—Printing tables
- B41F15/18—Supports for workpieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/50—Screen printing machines for particular purposes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Screen Printers (AREA)
Abstract
The invention discloses automatic production equipment of a power module, which relates to the technical field of semiconductor device manufacturing, and comprises a screen printer, an automatic chip mounter, a vacuum reflow welding machine, an ultrasonic cleaning machine, an X-ray detection machine, an automatic lead bonding machine, a laser marking machine, a bush pressing machine, a shell filling machine and a high-temperature curing machine which are sequentially connected, and is characterized in that: a printing screen plate and a substrate placing plate are sequentially arranged on the screen printing machine from top to bottom corresponding to the lower part of the printing scraper plate; has the advantages of high production efficiency and high automation degree.
Description
Technical Field
The invention relates to the technical field of semiconductor device manufacturing, in particular to automatic power module production equipment.
Background
With the development of science and technology, power electronic semiconductor devices occupy an important position in modern power electronic technology, and are developing towards high frequency, high power, intellectualization and modularization. An Intelligent Power Module (IPM) is an advanced power switching device having advantages of a GTR (large power transistor) of high current density, low saturation voltage and high voltage resistance, and advantages of a MOSFET (field effect transistor) of high input impedance, high switching frequency and low driving power. And logic, control, detection and protection circuits are integrated in the IPM, so that the IPM is convenient to use, the volume and development time of a system are reduced, the reliability of the system is greatly enhanced, the IPM is suitable for the development direction of the current power device, namely modularization, composition and Power Integrated Circuit (PIC), and the IPM is more and more widely applied to the field of power electronics. However, at present, IPM (intelligent power module) products in the market are basically imported and expensive, so that the market price is high and unacceptable to users. The cost of a domestic 32/28 nm node process line is about $ 12 billion, and the 22/20 nm node process cost will increase to about $ 21 to $ 30 billion. With respect to chip design costs, the cost can range from 5000 to 9000 ten thousand dollars needed for a 32 nanometer node, and up to 1.2 to 5 billion dollars at a 22 nanometer node. At a 32-nanometer node, the cost can be leveled when the sales volume of chips reaches 3000 to 4000 ten thousand; but at the 20 nm node, the threshold is increased to 6000 to 1 million. Therefore, the pursuit of high integration level is implied in the current semiconductor lithography process mode, and the cost of the pursuit is unacceptable for middle-end and low-end products. There is a strong need in the market for such products for a highly efficient manufacturing technique for smart power modules.
Disclosure of Invention
The invention aims to solve the problems of the existing power module production line and provide automatic power module production equipment, and the automatic power module production equipment can be used for observing the size outside a vagina, so that the defects of diagnosis and evaluation of vaginal relaxation in clinic are perfectly overcome.
In order to achieve the above purpose, the invention adopts the technical scheme that:
an automatic power module production device comprises a screen printer, an automatic chip mounter, a vacuum backflow welding machine, an ultrasonic cleaning machine, an X-ray detection machine, an automatic lead bonding machine, a laser marking machine, a bush pressing machine, a shell filling machine and a high-temperature curing machine which are sequentially connected, wherein a printing screen plate and a substrate placing plate are sequentially arranged on the screen printer from top to bottom below a printing scraper plate; the bush pressfitting machine comprises a base, a supporting rod, a machine body, a handle, a stamping rod, a transmission device, a reset spring and a fixed rod, wherein the supporting rod is arranged above the base, the machine body is arranged on the supporting rod, the machine body is adjusted in position on the supporting rod through a fastening hand wheel, the transmission device is arranged in the machine body, the handle is arranged outside the machine body and movably connected with the transmission device, the stamping rod is connected with the machine body in a sliding mode, the transmission device drives the stamping rod to move up and down, the fixed rod is arranged on the upper portion of the machine body, one end of the reset spring is fixedly connected with the top end of the stamping rod, the other end of the reset spring is fixedly connected with the fixed rod, a punch head is fixedly connected with the bottom of the stamping rod, a rubber liner is fixedly connected with the base, and a positioning device is detachably connected on the rubber liner.
In order to further optimize the present invention, the following technical solutions may be preferably adopted:
preferably, evenly be provided with a plurality of rectangle recesses on the board is placed to the base plate, a plurality of horizontal dogs of fixedly connected with in the rectangle recess, horizontal dog height is not higher than the rectangle recess degree of depth, horizontal dog separates the rectangle recess and makes a plurality of standing grooves of placing the DBC module base plate, the printing otter board corresponds every standing groove department and is provided with special-shaped hole, the shape that needs to cover the tin cream on special-shaped hole shape and the DBC module base plate is the same, the scraper blade is rectangular shape plate type structure.
Preferably, four corner positions of the rectangular groove are provided with easy-taking grooves, the length of the transverse check block is smaller than the width of the rectangular groove, the outer edge of the printing screen is provided with a frame, the printing screen is fixedly connected with the frame through a transition connecting surface, and the transition connecting surface is made of elastic fabric.
Preferably, be provided with the clamping mechanism who is used for pressing from both sides tight power module on the automatic wire bonder, clamping mechanism include the base be equipped with a plurality of stand on the base, the stand upper end is equipped with the workstation, set up the sunken work portion that is used for placing power module on the workstation, the both sides of workstation are equipped with a pair of splint, splint are arranged in the top of sunken work portion, the lower terminal surface of workstation is equipped with drive arrangement, the drive arrangement lower extreme is equipped with the connecting plate, drive arrangement is driving the connecting plate and is going up and down, be equipped with the support column on the connecting plate, the support column runs through workstation and upper end and connects splint.
Preferably, be provided with the frock wash rack in the ultrasonic cleaner, the frock wash rack includes the frame, the frame is rectangular frame structure, the frame includes rectangle frame and lower rectangle frame, it is through four stand bolted connection all around with lower rectangle frame to go up the rectangle frame, bolted connection has a plurality of first roof beams of placing on going up the rectangle frame, integrated into one piece has a plurality of seconds to place the roof beam down on the rectangle frame, first place set up a plurality of recesses one that set up along vertical direction on the roof beam, the second is placed and is seted up a plurality of recesses two that set up along the horizontal direction on the roof beam, and the quantity of recess one and recess two equals and the one-to-one.
Preferably, the bottom surface of the second groove is of an arc-shaped structure, an overhead support is arranged on the lower end surface of the lower rectangular frame, and the overhead support is of a structure shaped like a Chinese character 'jing'.
Preferably, the first positioning device comprises an L-shaped baffle, a fixing part is fixedly connected to the outer edge of the L-shaped baffle in an integrated mode, a circular through hole is formed in the fixing part, and a positioning nail penetrates through the circular through hole to fix the L-shaped baffle on the rubber liner.
Preferably, transmission includes driving gear and driven gear, the driving gear rotates with the fuselage to be connected, the coaxial fixed connection of handle and driving gear, driven gear rotates with the fuselage to be connected, driven gear and driving gear meshing transmission, the driven gear diameter is less than the driving gear diameter, punching press pole left side is provided with meshes driven tooth mutually with driven gear.
Preferably, the handle comprises a primary rod and a secondary rod, the primary rod is coaxially and fixedly connected with the driving gear, the secondary rod is sleeved on the primary rod, a second positioning device is arranged between the primary rod and the secondary rod, and an operating handle is fixedly connected to the top of the secondary rod.
Preferably, No. two positioner includes the flexure strip, flexure strip one end and one-level pole inner wall fixed connection, fixedly connected with locating piece on the flexure strip, the locating piece free end is spherical shape, be provided with the recess with locating piece free end looks adaptation on the second grade pole inner wall, the one-level pole compresses tightly the locating piece through the flexure strip and buckles into the recess location.
The invention has the beneficial effects that:
1. the screen printing machine in the production equipment is provided with a printing screen plate and a substrate placing plate; the DBC module placing plate is uniformly provided with a plurality of placing grooves, a plurality of DBC modules can be placed at one time, then the mould brush plate is covered on the placing plate on which the DBC modules are placed, a special-shaped hole for coating the tin paste is formed in the mould brush plate corresponding to each placing groove, the tin paste is poured on the mould brush plate, a scraper is used for repeatedly scraping and coating the tin paste for several times, the tin paste coating work of the DBC modules in batches is completed, the DBC modules are coated in batches, and the production efficiency is improved; the uniform brush coating is carried out under the brush plate of the die, so that the uniformity and consistency of the brush coating are improved.
2. The bush pressing machine can reduce the damage probability of a power module while pressing a bush by arranging the rubber liner, the L-shaped baffle is arranged on the rubber liner, the operation efficiency can be greatly improved, the quick positioning can be realized in the operation process, after a section of bush is pressed, the other end of the power module is only required to be turned to tightly push the L-shaped baffle to be pressed, the rubber liner also plays a role in conveniently fixing a positioning nail at the moment, and the positioning nail is pressed into the rubber liner to complete the fixing of the L-shaped baffle only after a positioning device is adjusted; through the arrangement of the secondary gear transmission, the diameter of the driving wheel is larger than that of the driven wheel, when the driving wheel is operated to rotate, the driven wheel is higher than the rotating speed of the driving wheel, the driven wheel drives the punching rod to move up and down, so that the punching head is driven to perform pressing operation on the lining, and the arrangement of the secondary gear enables the punching head to be operated more quickly; through the secondary structure who sets up the handle, the telescopic structure is set to the handle, through extension handle, it can be more laborsaving to operate, and extension length is set for according to operator's self condition, makes the operation more convenient
Drawings
FIG. 1 is the overall process flow of the present production line;
FIG. 2 is a schematic view of the structure at the printing squeegee in the screen printing machine;
FIG. 3 is a schematic view showing a structure of a substrate placing plate in the screen printer;
FIG. 4 is a schematic view of a printing squeegee configuration in a screen printing machine;
FIG. 5 is a schematic view of a squeegee in the screen printing machine;
FIG. 6 is a view of the upper rectangular frame structure of the tool cleaning rack;
FIG. 7 is a lower rectangular frame structure of the tool cleaning rack;
FIG. 8 is a view of the overhead support structure of the tool cleaning rack;
FIG. 9 is a schematic structural view of a liner laminator;
FIG. 10 is a schematic cross-sectional view of a liner laminator;
FIG. 11 is an enlarged view of portion A of FIG. 10;
FIG. 12 is a schematic cross-sectional view of the handle;
FIG. 13 is an overall top view of the clamping mechanism;
fig. 14 is an overall front view of the clamping mechanism.
Description of reference numerals:
wherein; 101-a substrate placement plate; 102-a printing screen; 103-a printing squeegee; 104-a rectangular groove; 105-a transverse stop; 106-placement slots; 107-shaped holes; 108-a border; 109-transition joint face; 110-easy-to-take groove; 111-locating pins; 112-positioning holes; 113-scraping the part; 114-a hand-held portion; 115-skid resistant lines;
201-upper rectangular frame, 202-first placing beam, 203-groove one, 204-lower rectangular frame, 205-second placing beam, 206-groove two, 207-overhead support, 208-fastening screw, 209-connection point;
301-a workbench; 302-clamping plate; 303-splint bulge; 304-a protective sheath; 305-a recessed working portion; 306-non-skid lines; 307-cylinder; 309-support column; 310-a column; 311-connecting plate; 312-a base; 13-a cushion layer;
401-pressing the base; 402-support rods; 403-a fuselage; 404-a handle; 405-a stamping bar; 46-a transmission; 47-a return spring; 48-a fixation rod; 49-tightening the hand wheel; 410-a punch; 412-rubber gasket; 413-L shaped baffles; 414-a fixed part; 415-positioning nails; 416-a drive gear; 417 — driven gear; 418-primary lever; 419-secondary lever; 420-operating a handle; 421-an elastic sheet; 422-positioning blocks; 423-grooves; 424-cross bar; 425-vertical bar; 426-limit box; 427-a power block; 428-lining.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in fig. 1 to 14, an automatic power module production apparatus includes a screen printer, an automatic chip mounter, a vacuum reflow soldering machine, an ultrasonic cleaning machine, an X-ray inspection machine, an automatic lead bonding machine, a laser marking machine, a bush pressing machine, a housing filling machine, and a high temperature curing machine, which are connected in sequence; the screen printer prints a set pattern of solder paste on the surface of the DBC copper plate, early preparation is made for subsequent automatic pasting, and in order to improve the efficiency of solder paste printing, a printing screen plate and a substrate placing plate are sequentially arranged on the screen printer from top to bottom corresponding to the lower part of the printing scraper 103; the substrate placing plate 101 is uniformly provided with a plurality of rectangular grooves 104, a plurality of transverse baffles 105 are fixedly connected in each rectangular groove 104, the height of each transverse baffle 105 is not higher than the depth of the rectangular groove 104, the rectangular grooves 104 are divided into a plurality of placing grooves 106 for placing DBC modules by the transverse baffles 105, a special-shaped hole 107 is arranged at the position of each printing screen 102 corresponding to each placing groove 106, the shape of the special-shaped hole 107 is the same as the shape of the DBC module needing to be covered with tin paste, a plurality of sets of printing screens are often prepared in the production process of a factory, the shape of the special-shaped hole 107 on each set is different, the DBC modules needing to be coated with the tin paste with different shapes are used, the scraper 103 is of a strip-shaped plate structure, the scraper 103 comprises a scraping part 113 and a handheld part 114, the handheld part 114 is arranged on the upper part of the scraping part 113 and integrally connected with the scraping part 113, and two sides of the handheld part 114 are provided with anti-skid patterns 115, the function is to facilitate the hand-held operation. The outer edge of the printing screen 102 is provided with a frame 108, the printing screen 102 is fixedly connected with the frame 108 through a transitional connecting surface 109, and the transitional connecting surface 109 is made of elastic fabric, so that the printing screen 102 is flexibly and transitionally detached in the process of detaching the printing screen 102 after the operation of finishing the tin paste brushing work, and the tin paste brushed completely is prevented from being taken away by the printing screen 102. Easy-to-take grooves 110 are formed in four corners of the rectangular groove 104, tools are convenient to use to take out the DBC module in the substrate placing plate 101, the length of the transverse stop block 105 is smaller than the width of the rectangular groove 4, and gaps between the end parts of two ends of the transverse stop block 105 and the edges of the rectangular groove 104 serve as the easy-to-take grooves 110. The edge of the substrate placing plate 101 is provided with three positioning pins 111, the three positioning pins 111 form a triangular shape, the printing screen 102 is provided with positioning holes 112 corresponding to the positioning pin positions, and the function is to more accurately set each special-shaped hole 107 on the BDC module in the process of placing the printing screen 102 on the substrate placing plate 1, and the special-shaped holes are not easy to displace in the process of brushing solder paste. The method comprises the following steps of fixing a substrate placing plate on a workbench, uniformly arranging a plurality of placing grooves on the substrate placing plate, placing a plurality of DBC modules at one time, covering a printing screen on the placing plate on which the DBC modules are placed, arranging special-shaped holes for coating tin paste on the printing screen corresponding to each placing groove, pouring the tin paste on the printing screen, repeatedly coating the tin paste for several times by using a scraper, finishing the tin paste coating work of the DBC modules in batches, and coating the tin paste in batches, so that the production efficiency is improved; the brush coating is uniformly carried out under the printing screen plate, so that the uniformity and consistency of the brush coating are improved.
In order to ensure efficient cleaning in the ultrasonic cleaning machine, aiming at a power module, a tool cleaning frame is installed in the ultrasonic cleaning machine and comprises a frame which is of a rectangular frame structure and comprises an upper rectangular frame 201 and a lower rectangular frame 204, the upper rectangular frame 201 and the lower rectangular frame 204 are connected through four peripheral stand column bolts, a plurality of first placing beams 202 are connected on the upper rectangular frame 201 through bolts, a plurality of second placing beams 205 are integrally formed on the lower rectangular frame 204, a plurality of grooves 203 arranged in the vertical direction are formed in the first placing beams 2, a plurality of grooves 206 arranged in the horizontal direction are formed in the second placing beams 205, the number of the grooves 203 and the number of the grooves 206 are equal and are in one-to-one correspondence, every two first placing beams 202 and every two second placing beams 205 are in one group, so that a DBC plate can be vertically placed in each group, and the whole cleaning tool is made of stainless steel, the DBC plate is placed into the tool, the upper end portion of the DBC plate is inserted into the first groove 203, the lower end portion of the DBC plate is inserted into the second groove 206, the DBC plate cannot fall and be damaged when the DBC plate is protected and cleaned better by the aid of two groove setting methods in the horizontal direction and the vertical direction, two clamp springs are symmetrically arranged on two side walls of the first groove 203, the DBC plate placed into the first groove 203 can be fixed more effectively through the two clamp springs, and the DBC plate cannot swing back and forth. The joint 209 of the second groove 206 and the second placing beam 205 is provided with an inclined transition area, and the bottom surface of the second groove 206 is of an arc-shaped structure, so that the contact surface at the lower end of the DBC plate is smoother. The lower terminal surface of lower rectangular frame 204 is equipped with built on stilts support 207, and built on stilts support 207 is "well" font structure, and eight tip positions of built on stilts support 207 pass through fastening screw 208 and rectangular frame 204 bolted connection down, and built on stilts support 207 can support lower rectangular frame 204 and make it unsettled, "well" font structure is more firm, increases the life of this frock.
Further install the clamping mechanism who is used for pressing from both sides tight power module on the automatic wire bonder, including base 312, be equipped with a plurality of stand 310 on the base 312, stand 310 upper end is equipped with workstation 301, sunken work portion 305 has been seted up on the workstation 301, the shape of sunken work portion 305 is "protruding" font, the salient part of "protruding" font is towards the rear side, the both sides of workstation 1 are equipped with a pair of splint 302, splint 302 arranges the top of sunken work portion 305 in, the size and the power module phase-match of sunken work portion 5, the lower extreme fixedly connected with cylinder 307 of workstation 301, cylinder 307 lower extreme fixedly connected with connecting plate 311, cylinder 307 drives connecting plate 11 and goes up and down, be equipped with support column 309 on the connecting plate 311, support column 309 runs through workstation 301 and upper end connection splint 302, the cover has protective sheath 304 on the support column 309, protective sheath 304 runs through workstation 301.
During the use, put power module on sunken work portion 305, cylinder 307 control connecting plate 311 goes up and down, and connecting plate 311 goes up and down to drive support column 309 and splint 302 and go up and down, reaches the purpose of the tight power module of clamp with the cooperation of splint 2, afterwards alright through threaded connection between splint 302 and the support column 309, when protective sheath 304 becomes dirty needs to wash or impaired needs to be changed, can demolish splint 302, take out protective sheath 304 and change.
In this embodiment, the recessed working portion 305 is in a "convex" shape, when the power module is placed on the recessed working portion 305, a part of the gap is convenient for a worker to grip with tweezers, the support column 309 is sleeved with the protective sleeve 304, and the protective sleeve 304 penetrates through the workbench 301. The workbench 1 is provided with a plurality of vertical strip-shaped anti-slip grains 306, so that the friction force on the surface of the workbench 301 can be increased. A wear-resistant film is attached to the recessed working portion 305, and when the power module is placed on the recessed working portion 305, the power module is not easy to slide and fall off. The cross-sectional shape of base 312 is circular, and area is littleer and convenient removal and carrying, and the tip of splint 302 is equipped with the protruding 303 of splint, and the lower extreme of the protruding 303 of splint is equipped with cushion layer 313, protection that can be better.
The bushing pressing machine comprises a pressing base 401, a supporting rod 402, a machine body 403, a handle 404, a punching rod 405, a transmission device 406, a return spring 407 and a fixing rod 408, wherein the supporting rod 2 is arranged above the pressing base 401 and fixedly connected with the pressing base 401, the machine body 403 is arranged on the supporting rod 402, the position of the machine body 403 on the supporting rod 402 is adjusted through a fastening hand wheel 409, the transmission device 406 is arranged in the machine body 403, the handle 404 is arranged outside the machine body 403 and movably connected with the transmission device 406, the punching rod 405 is in sliding connection with the machine body 403, the transmission device 406 drives the punching rod 405 to move up and down so as to drive the punching rod 405 to press the bushing 428, the fixing rod 8 is arranged at the upper part of the machine body 403, one end of the return spring 407 is fixedly connected with the top end of the punching rod 405, the other end of the return spring 407 is fixedly connected with the fixing rod 408, the bottom of the punching rod 405 is fixedly connected with a punch 410, the diameter of the punch 410 is larger than the inner hole of the bushing 428, the punch 410 can press the edge of the bushing 428 to push the bushing 28 into the power module 427, the press-fit base 1 is fixedly connected with a rubber gasket 412, the rubber gasket 412 is detachably connected with an L-shaped baffle 413, the L-shaped baffle 413 is used for quickly positioning the power module 427, the bushing 428 with the press-fit is arranged below the punch, the outer edge of the L-shaped baffle 413 is integrally and fixedly connected with a fixing part 414, a circular through hole is formed in the fixing part 414, and the L-shaped baffle 413 penetrates through the circular through hole through a positioning nail 15 to be fixed on the rubber gasket 412.
The transmission device 406 comprises a driving gear 416 and a driven gear 417, the driving gear 416 is rotatably connected with the machine body 403, the handle 404 is coaxially and fixedly connected with the driving gear 416, the driven gear 417 is rotatably connected with the machine body 403, the driven gear 417 is in meshing transmission with the driving gear 416, the diameter of the driven gear 417 is smaller than that of the driving gear 416, and the transmission from the driving gear 416 to the punching rod 5 is an accelerating process, so that the operation is quicker, the left side of the punching rod 405 is provided with teeth in meshing transmission with the driven gear 417, and the driven gear 417 drives the punching rod 405 to move up and down. The handle 404 comprises a primary rod 418 and a secondary rod 419, the primary rod 418 is fixedly connected with the driving gear 416 in a coaxial mode, the secondary rod 419 is sleeved on the primary rod 418, a second positioning device is arranged between the primary rod 418 and the secondary rod 419 and comprises an elastic sheet 421, one end of the elastic sheet 421 is fixedly connected with the inner wall of the primary rod 418, a positioning block 422 is fixedly connected onto the elastic sheet 421, the free end of the positioning block 422 is in a spherical shape, a groove 423 matched with the free end of the positioning block 422 is formed in the inner wall of the secondary rod 419, the primary rod 418 is tightly pressed by the elastic sheet 421 to be buckled into the groove 23 for positioning, the length of the whole handle is adjusted by buckling the positioning block 422 into different grooves 423, an operating handle 420 is fixedly connected to the top of the secondary rod 19, and labor is saved by extending the handle 404. The fixing rod 408 comprises a cross rod 424 and a vertical rod 425, threads are arranged at the bottom of the vertical rod 425, the vertical rod 425 can ascend and descend, the tension of the return spring 7 is adjusted through ascending and descending of the vertical rod 425, the vertical rod 425 is movably connected with the machine body 403 through the threads, the cross rod 24 is rotatably connected with the vertical rod 25, and the cross rod 424 is fixedly connected with one end of the return spring 407. The inside of the body 403 is provided with a limit box 426, and the bottom of the vertical rod 425 is arranged in the limit box 26, so that the vertical rod 425 is prevented from contacting the driving gear 416 when moving downwards. When the machine is used specifically, the L-shaped baffle is firstly positioned to a proper position, the power module can be quickly positioned in the later pressing bush operation process, and after the bush at one end is pressed, the power module is only required to be turned, and the other end of the power module abuts against the L-shaped baffle for pressing.
Claims (10)
1. The utility model provides a power module automated production equipment, includes screen printing machine, automatic chip mounter, vacuum backflow welding machine, ultrasonic cleaner, X-ray detection machine, automatic lead bonding machine, laser marking machine, bush pressfitting machine, casing liquid filling machine, the high temperature curing machine that links to each other in proper order, its characterized in that: a printing screen plate and a substrate placing plate are sequentially arranged on the screen printing machine from top to bottom corresponding to the lower part of the printing scraper plate; the bush pressfitting machine comprises a base, a supporting rod, a machine body, a handle, a stamping rod, a transmission device, a reset spring and a fixed rod, wherein the supporting rod is arranged above the base, the machine body is arranged on the supporting rod, the machine body is adjusted in position on the supporting rod through a fastening hand wheel, the transmission device is arranged in the machine body, the handle is arranged outside the machine body and movably connected with the transmission device, the stamping rod is connected with the machine body in a sliding mode, the transmission device drives the stamping rod to move up and down, the fixed rod is arranged on the upper portion of the machine body, one end of the reset spring is fixedly connected with the top end of the stamping rod, the other end of the reset spring is fixedly connected with the fixed rod, a punch head is fixedly connected with the bottom of the stamping rod, a rubber liner is fixedly connected with the base, and a positioning device is detachably connected on the rubber liner.
2. The automated power module production facility of claim 1, wherein: evenly be provided with a plurality of rectangle recesses on the board is placed to the base plate, a plurality of horizontal dogs of fixedly connected with in the rectangle recess, horizontal dog height is not higher than the rectangle recess degree of depth, horizontal dog separates the rectangle recess and makes a plurality of standing grooves of placing the DBC module base plate, the printing screen board corresponds every standing groove department and is provided with special-shaped hole, the shape that needs to cover the tin cream on special-shaped hole shape and the DBC module base plate is the same, the scraper blade is rectangular shape board structure.
3. The power module automated manufacturing apparatus of claim 2, wherein: four angular positions of the rectangular groove are provided with easy-taking grooves, the length of the transverse check block is smaller than the width of the rectangular groove, the outer edge of the printing screen is provided with a frame, the printing screen is fixedly connected with the frame through a transition connecting surface, and the transition connecting surface is made of elastic fabric.
4. The automated power module production facility of claim 1, wherein: the automatic lead bonding machine is provided with a clamping mechanism for clamping a power module, the clamping mechanism comprises a base, a plurality of stand columns are arranged on the base, a workbench is arranged at the upper end of each stand column, a sunken working part for placing the power module is arranged on the workbench, a pair of clamping plates are arranged on two sides of the workbench, the clamping plates are arranged above the sunken working part, a driving device is arranged on the lower end face of the workbench, a connecting plate is arranged at the lower end of the driving device, the driving device drives the connecting plate to ascend and descend, a supporting column is arranged on the connecting plate and penetrates through the workbench, the upper end of the supporting column is connected with the clamping plates.
5. The automated power module production facility of claim 1, wherein: be provided with the frock wash rack in the ultrasonic cleaner, the frock wash rack includes the frame, the frame is rectangular frame structure, the frame includes rectangle frame and lower rectangle frame, go up rectangle frame and rectangle frame down through four stand bolted connection all around, it has a plurality of first roof beams of placing to go up bolted connection on the rectangle frame, integrated into one piece has a plurality of seconds to place the roof beam down on the rectangle frame, first place set up a plurality of recess one that set up along vertical direction on the roof beam, the second is placed and is seted up a plurality of recess two that set up along the horizontal direction on the roof beam, and the quantity of recess one and recess two is equal and the one-to-one.
6. The automated power module production facility of claim 5, wherein: the bottom surface of the second groove is of an arc-shaped structure, an overhead support is arranged on the lower end surface of the lower rectangular frame, and the overhead support is of a structure shaped like a Chinese character 'jing'.
7. The automated power module production facility of claim 1, wherein: the first positioning device comprises an L-shaped baffle, a fixing part is fixedly connected to the outer edge of the L-shaped baffle in an integrated mode, a circular through hole is formed in the fixing part, and a positioning nail penetrates through the circular through hole to fix the L-shaped baffle on the rubber lining.
8. The automated power module production facility of claim 7, wherein: the transmission device comprises a driving gear and a driven gear, the driving gear is connected with the machine body in a rotating mode, the handle is fixedly connected with the driving gear in a coaxial mode, the driven gear is connected with the machine body in a rotating mode, the driven gear is in meshed transmission with the driving gear, the diameter of the driven gear is smaller than that of the driving gear, and teeth in meshed transmission with the driven gear are arranged on the left side of the stamping rod.
9. The automated power module production facility of claim 8, wherein: the handle comprises a primary rod and a secondary rod, the primary rod is fixedly connected with the driving gear in a coaxial mode, the secondary rod is sleeved on the primary rod, a second positioning device is arranged between the primary rod and the secondary rod, and an operating handle is fixedly connected to the top of the secondary rod.
10. The automated power module production facility of claim 9, wherein: the second positioning device comprises an elastic sheet, one end of the elastic sheet is fixedly connected with the inner wall of the first-level rod, a positioning block is fixedly connected onto the elastic sheet, the free end of the positioning block is spherical, a groove matched with the free end of the positioning block is formed in the inner wall of the second-level rod, and the first-level rod is tightly pressed by the elastic sheet to be buckled into the groove for positioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110535585.7A CN113334906A (en) | 2021-05-17 | 2021-05-17 | Automatic production equipment for power module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110535585.7A CN113334906A (en) | 2021-05-17 | 2021-05-17 | Automatic production equipment for power module |
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| CN113334906A true CN113334906A (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110535585.7A Pending CN113334906A (en) | 2021-05-17 | 2021-05-17 | Automatic production equipment for power module |
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| CN103962357A (en) * | 2013-02-05 | 2014-08-06 | 西安永电电气有限责任公司 | DBC (direct bonding copper) substrate cleaning flower basket structure and cleaning method |
| CN204544872U (en) * | 2015-01-26 | 2015-08-12 | 杭州西力电能表制造有限公司 | Pcb board cleaning frock |
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Application publication date: 20210903 |