Power module sorting system and parameter sorting storage method thereof

Abstract

The application provides a power module sorting system and a parameter sorting storage method thereof. The power module sorting system comprises a feeding mechanism, an insulation detection device, an insulation sorting mechanism and a parameter detection device arranged vertically from top to bottom, a marking device, a pin detection device, a character detection device, a parameter sorting mechanism and a sorting storage device arranged obliquely from top to bottom, and a corner turning mechanism arranged between the parameter detection device and the marking device. The sorting storage device comprises parallelly arranged parameter sorting storage mechanisms, one side of the parameter sorting storage mechanisms is provided with a parameter defective product storage mechanism, and the bottom of the parameter sorting storage mechanisms is provided with a material pipe conveying mechanism. The technical problem that the existing power module sorting system cannot automatically sequentially perform insulation detection, parameter detection and subsequent appearance quality detection and sorting is solved.

Description

Technical Field

[0001] This invention relates to the field of power module testing technology, and in particular to a power module sorting system and its parameter sorting and storage method. Background Technology

[0002] IPM (Intelligent Power Module) is a module that integrates power components such as IGBTs and MOSFETs, as well as drive circuits and protection circuits. After chip manufacturing is completed, the electrical performance of the chips is tested, such as static characteristics, switching characteristics, and short-circuit capability, and qualified chips are selected. Then, they are packaged. After packaging, the basic production is completed.

[0003] However, insulation and parameter testing are required after the packaged power module is completed. After these tests are completed, a further production process is required, namely marking, which involves using a marking machine to print identification symbols on the module, such as model, batch, and date. After this production, appearance quality testing is also required, such as whether the marking is printed crookedly or whether the pins are crooked.

[0004] The equipment that automatically classifies good products from bad products and even good products of different qualities during the inspection process is called a sorting system.

[0005] In summary, due to the presence of marking processing, it is impossible to set up insulation testing, parameter testing, and subsequent appearance quality testing on a single sorting system, thus making automated testing impossible. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a power module sorting system and its parameter sorting and storage method, which solves the technical problem that existing power module sorting systems cannot automatically perform insulation testing, parameter testing, and subsequent appearance quality testing and sorting in sequence.

[0007] According to an embodiment of the present invention, a power module sorting system includes a feeding mechanism, an insulation detection device, an insulation sorting mechanism, a parameter detection device, a marking device, a pin detection device, a character detection device, a parameter sorting mechanism, and a sorting storage device arranged from top to bottom.

[0008] The feeding mechanism, insulation detection device, insulation sorting mechanism and parameter detection device are arranged vertically, while the marking device, pin detection device, character detection device, parameter sorting mechanism and sorting storage device are arranged at an angle. A corner flipping mechanism is provided between the parameter detection device and the marking device.

[0009] The sorting and storage device includes a parameter sorting and storage mechanism, a parameter defective product storage mechanism is provided on one side of the parameter sorting and storage mechanism, and a material pipe conveying mechanism is provided at the bottom of the parameter sorting and storage mechanism.

[0010] The technical principle of this invention is as follows: a vertically arranged feeding mechanism, insulation detection device, insulation sorting mechanism and parameter detection device are used to quickly complete insulation detection and parameter detection. Then, the power module that has completed the detection is flipped over by a corner flipping mechanism and changed from the original vertical state to an inclined state, which reduces the downward speed.

[0011] Then it tilts and slides down through the marking device to print the label. At this time, due to gravity, it is easier to stick to the lower side of the marking device. The marking device only needs to block the fall to make the marking stable.

[0012] After marking is completed, the product continues to fall at an angle and passes through the pin detection device and character detection device. It then enters the parameter sorting and storage mechanism and is sorted into the parallel parameter sorting and storage mechanism or the parameter defective product storage mechanism according to the detection results of the parameter detection device, pin detection device and character detection device.

[0013] Compared with the prior art, the present invention has the following beneficial effects: by using a feeding mechanism, insulation detection device, insulation sorting mechanism, parameter detection device, marking device, pin detection device, character detection device, parameter sorting mechanism and sorting storage device arranged from top to bottom, it solves the technical problem that the existing power module sorting system cannot automatically perform insulation detection, parameter detection and subsequent appearance quality detection and sorting in sequence.

[0014] Furthermore, the feeding mechanism includes a material tube storage box and a waste tube storage box arranged in parallel, and a feeding conveying cylinder arranged between the two. The material tube storage box and the waste tube storage box both have material tubes stacked vertically in sequence. A feeding space is provided between the material tube storage box and the waste tube storage box. A robotic arm is provided between the feeding space and the inlet of the insulation detection device.

[0015] This application achieves orderly storage of tubes with untested power modules and empty tubes by using a tube storage box and a waste tube storage box together. The tube storage box facilitates orderly feeding, while the waste tube storage box facilitates the recycling and reuse of empty tubes.

[0016] Furthermore, both the insulation sorting mechanism and the parameter sorting mechanism include a conveyor track structure and a sorting block with a vertically penetrating cavity. The sorting block is equipped with an opening and closing cylinder, and the extension rod of the opening and closing cylinder passes through the interior of the sorting block and is perpendicular to the penetrating direction of the cavity.

[0017] The conveyor track structure is used to drive the sorting block to move, and the sorting block has a cavity for the power module to pass through and be temporarily stored. When the opening and closing cylinder extends, it is used to block the power module from passing through, thereby achieving the purpose of temporary storage.

[0018] Furthermore, a storage mechanism for defective insulation products is provided on the lower side of the insulation sorting mechanism.

[0019] Used to store power modules that fail insulation testing.

[0020] Furthermore, there are two parameter detection devices, and an insulation sorting mechanism is also provided between the parameter detection devices and the corner flipping mechanism. The insulation sorting mechanism below the parameter detection devices is provided with a receiving rail, which is aligned with the corner flipping mechanism.

[0021] By cooperating with two insulated sorting mechanisms, the efficiency of parameter detection in the sorting system is improved.

[0022] Furthermore, the corner flipping mechanism includes a flipping block and a flipping motor. The flipping block has a chamber with an opening on one side. The side of the flipping block away from the opening is connected to the flipping motor for transmission. The opening receives the power module of the parameter detection device and the opening is aligned with the power module of the marking device.

[0023] This invention enables the power module to change its direction of movement from vertical to tilt, thereby reducing its falling speed. It also enables the power module to be flipped over. Flipping over is a technical challenge because insulation testing, parameter testing, marking, and subsequent inspection cannot be performed sequentially.

[0024] Furthermore, the parameter defective product storage mechanism includes an empty tube storage box and a defective product storage box arranged in parallel, and a defective product conveying cylinder arranged between the two. The empty tube storage box and the defective product storage box both have material tubes stacked vertically in sequence. The top of the defective product storage box is provided with a guide rail, and the guide rail is aligned with the parameter sorting mechanism.

[0025] This application achieves orderly storage of tubes filled with defective power modules and empty tubes by using an empty tube storage box in conjunction with a defective product storage box. The defective product storage box facilitates orderly storage, while the empty tube storage box facilitates orderly feeding.

[0026] Furthermore, the parameter sorting and storage mechanism includes parallel and evenly distributed pipe fixing positions for stacking pipes, each pipe fixing position has an inlet at one end, and each pipe fixing position has an elastic snap-fit ​​structure at both ends.

[0027] By using the fixed position of the feed tube and the inlet, power modules of different quality products can be discharged, while the flexible snap-fit ​​structure is designed to facilitate the feed tube entry and support at the bottom of the feed tube in conjunction with the feed tube conveying mechanism.

[0028] Furthermore, the material tube conveying mechanism includes a horizontal conveying mechanism and a vertical conveying mechanism. The vertical conveying mechanism is equipped with a top block cylinder and a top rod cylinder at its two ends, respectively, and the top block cylinder and the top rod cylinder can respectively open the corresponding elastic locking structure.

[0029] Two elastic snap-fit ​​structures are used in conjunction with the top block cylinder and the top rod cylinder to achieve the clamping of the material tube.

[0030] According to an embodiment of the present invention, a parameter sorting and storage method for a power module sorting system includes one tube fixing position for storing empty tubes, and the remaining tube fixing positions for stacking tubes containing power modules. The parameter sorting and storage method includes:

[0031] Clamping: The top block cylinder and the top rod cylinder rise to open the elastic locking structure, then clamp the two ends of the empty material tube, and finally drive the empty material tube to descend and disengage from the inlet;

[0032] Release: The empty material tube is conveyed to the lower side of the material tube fixing position that needs to be replaced. The top block cylinder and the top rod cylinder rise and respectively open the elastic locking structure. Then, the two ends of the empty material tube are released. Then, the top block cylinder and the top rod cylinder descend, and the elastic locking structure locks the empty material tube.

[0033] The technical principle of this invention is as follows: the material tube is clamped at both ends to ensure that the material tube can be separated from the elastic clamping structure in the shortest distance. This is because if it is clamped from the middle, the material tube may be bent into an arc shape, while the two ends are not separated from the elastic clamping structure.

[0034] Compared with the prior art, the present invention has the following advantages: by removing the two ends of the material tube by the top block cylinder and the top rod cylinder, bending is avoided, and the material tube can be separated from the elastic snap-fit ​​structure with the minimum vertical movement distance. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the power module sorting system according to an embodiment of the present invention.

[0036] Figure 2 This is a schematic diagram of the feeding mechanism structure according to an embodiment of the present invention.

[0037] Figure 3 This is a schematic diagram of the structure of the material tube storage box and the waste tube storage box according to an embodiment of the present invention.

[0038] Figure 4 This is a schematic diagram of the insulation sorting mechanism according to an embodiment of the present invention.

[0039] Figure 5 This is a schematic diagram of the sorting block structure according to an embodiment of the present invention.

[0040] Figure 6 This is a schematic diagram of the corner flipping mechanism according to an embodiment of the present invention.

[0041] Figure 7 This is a front view of the corner flipping mechanism according to an embodiment of the present invention.

[0042] Figure 8 This is a schematic diagram of the parameter defective product storage mechanism according to an embodiment of the present invention.

[0043] Figure 9 This is a schematic diagram of the sorting and storage device according to an embodiment of the present invention.

[0044] Figure 10 This is a schematic diagram of the material tube conveying mechanism according to an embodiment of the present invention.

[0045] Figure 11 This is a schematic diagram of the structure when the elastic card block is pushed open according to an embodiment of the present invention.

[0046] Figure 12 This is a schematic diagram of the elastic card block when it is closed according to an embodiment of the present invention.

[0047] Figure 13 This is a schematic diagram of the structure of the elastic sheet in an embodiment of the present invention when it is pushed open.

[0048] Figure 14 This is a schematic diagram of the elastic sheet after its rebound, according to an embodiment of the present invention.

[0049] Figure 15 This is a schematic diagram of the marking device according to an embodiment of the present invention.

[0050] Figure 16 This is a top view of the marking device according to an embodiment of the present invention.

[0051] Figure 17 for Figure 16 A sectional view of AA.

[0052] Figure 18 for Figure 17 A cross-sectional view of BB.

[0053] Figure 19 This is a schematic diagram of the clamping mechanism according to an embodiment of the present invention.

[0054] In the above attached figures:

[0055] 100. Feeding mechanism; 101. Opening; 102. Protrusion; 110. Material tube storage box; 120. Waste tube storage box; 130. Feeding conveyor cylinder; 140. Robotic arm; 150. Moving bar; 151. Feeding groove; 152. Conveying pusher; 160. Push-up cylinder;

[0056] 200. Insulation testing device; 210. Insulation sorting mechanism; 220. Parameter testing device; 230. Storage mechanism for defective insulation products; 240. Receiving track;

[0057] 300. Corner flipping mechanism; 310. Flipping block; 311. Chamber; 312. Opening; 313. Rotating slot; 320. Flipping motor; 321. Connecting rod; 330. Vertical plate; 331. Sensing channel; 340. Arc plate; 350. Infrared sensor; 351. Infrared transmitter; 352. Infrared receiver;

[0058] 400. Marking device; 401. Dust suction port; 402. Dustproof plate; 410. Marking guide rail; 411. Processing port; 412. Clamping port; 420. Dustproof device; 421. Dustproof slide rail; 422. Dustproof cover; 422A. Processing passage; 422B. Ventilation hole; 430. Clamping mechanism; 431. Clamping cylinder; 432. Clamping block; 433. Rotating shaft; 434. Crank disc; 435. Clamping side plate; 440. Positioning mechanism; 441. Positioning cylinder; 442. U-shaped positioning rod; 450. Cleaning mechanism; 451. Protective cover; 452. Cleaning motor; 453. Lifting cylinder; 454. Cleaning shaft; 455. Cleaning brush; 460. Pin detection device; 470. Character detection device;

[0059] 500. Parameter sorting mechanism; 510. Conveyor track structure; 511. Slide rail; 512. Conveyor belt structure; 513. Slider; 520. Sorting block; 521. Cavity; 530. Opening and closing cylinder;

[0060] 600. Sorting and storage device;

[0061] 700. Parameter sorting and storage mechanism; 701. Material tube fixing position; 702. Support rod; 710. Upper clamping bar; 711. Inlet; 712. Material tube inlet / outlet groove; 720. Lower clamping bar; 721. Elastic fixing groove; 730. Elastic clamping block; 731. Snap ring; 740. Elastic sheet; 741. Fixing protrusion; 742. Inclined arc surface;

[0062] 800. Material pipe conveying mechanism; 810. Horizontal conveying mechanism; 811. Electric slide rail; 812. Horizontal track; 813. Mounting platform; 820. Vertical conveying mechanism; 821. Vertical cylinder; 822. Support plate; 823. Positioning block; 824. Sensing device; 830. Top block cylinder; 831. Lifting block; 832. Protruding edge; 840. Top rod cylinder; 841. L-shaped lifting rod;

[0063] 900, Defective product storage mechanism; 901, Opening; 902, Protrusion; 910, Empty tube storage box; 920, Defective product storage box; 930, Defective product conveying cylinder; 931, Lifting cylinder; 932, Pneumatic gripper; 940, Guide rail. Detailed Implementation

[0064] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0065] like Figure 1 The power module sorting system shown includes, from top to bottom, a feeding mechanism 100, an insulation detection device 200, an insulation sorting mechanism 210, a parameter detection device 220, a marking device 400, a pin detection device 460, a character detection device 470, a parameter sorting mechanism 500, and a sorting storage device 600.

[0066] The feeding mechanism 100, insulation detection device 200, insulation sorting mechanism 210, and parameter detection device 220 are vertically arranged to facilitate the rapid descent of the power module, improve detection efficiency, and prevent the power module from getting stuck. The marking device 400, pin detection device 460, character detection device 470, parameter sorting mechanism 500, and sorting and storage device 600 are inclined, primarily for easier fixing of the marking device 400 and to slow the falling speed of the power module in the sorting and storage device 600, preventing damage from excessive impact. A corner-turning mechanism 300 is provided between the parameter detection device 220 and the marking device 400. Because the working surfaces of the insulation detection, parameter detection, and marking processes are opposite each other, the corner-turning mechanism 300 flips the modules, changing the conveying method from vertical to inclined.

[0067] like Figure 2-3 As shown, the feeding mechanism 100 includes a material tube storage box 110 and a waste tube storage box 120 arranged in parallel, and a feeding conveying cylinder 130 disposed between the two. Material tubes are stacked vertically in both the material tube storage box 110 and the waste tube storage box 120. A feeding space is provided between the material tube storage box 110 and the waste tube storage box 120. A robot arm 140 is provided between the feeding space and the inlet of the insulation detection device 200. The structure of the robot arm 140 is based on the feeding mechanism described in Chinese Patent Document No. 209577434 U in the background art.

[0068] Specifically, the bottom of the material tube storage box 110 and the waste tube storage box 120 are provided with an opening 101 on one side close to each other. The bottom of the waste tube storage box 120 is provided with a protrusion 102 on the side wall near the opening 101. The feeding conveying cylinder 130 is provided with a movable bar 150. The movable bar 150 is integrally formed with a feeding groove 151 on the side near the material tube storage box 110. The movable bar 150 is provided with a conveying pusher 152 on the side near the waste tube storage box 120. The bottom of the opening 101 of the waste tube storage box 120 is provided with a push-up cylinder 160, so as to realize the fully automatic entry and fully automatic discharge of the material tube.

[0069] During operation, tubes filled with untested power modules are stacked sequentially in the tube storage box 110. Then, the first step is performed: the feeding conveying cylinder 130 drives the movable bar 150 to move to the opening 101 of the tube storage box 110. When the feeding groove 151 is aligned with the opening 101 of the tube storage box 110, the tube filled with untested power modules at the bottom of the tube storage box 110 falls into the feeding groove 151.

[0070] Then proceed to the second step: the feeding conveyor cylinder 130 drives the movable bar 150 and the material tube to move towards the waste tube storage box 120. When it moves to the middle position, it stops. At this time, the robot arm 140 works to lift the material tube and pour the untested power modules into the insulation sorting mechanism 210 in sequence for insulation testing. At the same time, the first step operation is performed. Then the robot arm 140 places the empty material tube on the movable bar 150.

[0071] Then the second step is repeated: when the feeding conveying cylinder 130 drives the movable bar 150 and the material tube to move to the side of the waste tube storage box 120, the previously empty material tube will be pushed into the bottom of the waste tube storage box 120 by the conveying pusher 152, and then the push cylinder 160 pushes the empty material tube upward, so that it passes through the protrusion 102 and enters the waste tube storage box 120 for storage.

[0072] like Figure 4-5 As shown, both the insulation sorting mechanism 210 and the parameter sorting mechanism 500 include a conveyor track structure 510 and a sorting block 520 with a vertically penetrating cavity 521. The sorting block 520 is equipped with an opening and closing cylinder 530. The telescopic rod of the opening and closing cylinder 530 passes through the interior of the sorting block 520 and is perpendicular to the penetrating direction of the cavity 521. Specifically, the conveyor track structure 510 includes a slide rail 511 and a conveyor belt structure 512 set on the slide rail 511. A slider 513 is fixed on the conveyor belt of the conveyor belt structure 512. The bottom of the slider 513 is installed on the slide rail 511, and the sorting block 520 is installed on the slider 513.

[0073] like Figure 1As shown, the insulation sorting mechanism 210 has a defective insulation storage mechanism 230 on its lower side, and two parameter detection devices 220 are provided. The insulation sorting mechanism 210 is also provided between the parameter detection device 220 and the corner flipping mechanism 300. The insulation sorting mechanism 210 below the parameter detection device 220 has a receiving rail 240 on its lower side. The receiving rail 240 is aligned with the corner flipping mechanism 300, thereby improving the efficiency of parameter detection by setting two parameter detection devices 220.

[0074] like Figure 1 , 6 As shown in Figure 7, the corner flipping mechanism 300 includes a flipping block 310 and a flipping motor 320. The flipping block 310 has a chamber for accommodating the power module. An opening 312 is provided on one side of the chamber for the power module to enter and exit. The side of the flipping block 310 away from the opening 312 is connected to the flipping motor 320 for transmission, so as to realize the flipping of the flipping block 310. The opening 312 receives the power module from the parameter detection device 220 and the opening 312 is aligned with the marking device 400 to discharge the power module.

[0075] like Figure 6-7 As shown, a vertical plate 330 is provided between the flipping motor 320 and the flipping block 310. The rotating shaft of the flipping motor 320 is connected to a connecting rod 321. The connecting rod 321 passes through the vertical plate 330 and is fixed to the flipping block 310. The vertical plate 330 serves to support the connecting rod 321. An arc-shaped plate 340 is connected to one side of the vertical plate 330 of the flipping block 310 by a rod. The center of the arc surface of the arc plate 340 is the axis of the connecting rod 321. The inner side of the arc plate 340 is close to the flipping block 310. Specifically, the flipping block 310 is provided with a rotating slot 313. The inner side of the arc plate 340 is inserted into the rotating slot 313. The arc plate 340 has the function of guiding the rotation of the flipping block 310. The arc plate 340 can also be understood as a track structure.

[0076] like Figure 6-7 As shown, the arc-shaped plate 340 is located on the rotation path of the opening 312. When the flipping block 310 is in the two extreme positions, the two ends of the arc-shaped plate 340 do not block the opening 312. Figure 6-7 The solid and dashed lines of the flip block 310 represent the two extreme positions of the flip block 310. The above structure is used to ensure that the arc plate 340 will not block the power module from entering or exiting at the extreme position, but will block the power module from entering or exiting at other positions.

[0077] like Figure 6-7 As shown, infrared sensors 350 are provided at the two extreme positions of the flip block 310. The upright plate 330 and the flip block 310 are provided with sensing channels 331 at the corresponding infrared sensors 350. The light from the infrared sensors 350 can pass through the sensing channels 331 to sense whether there is a power module in the cavity.

[0078] Specifically, each extreme position of the flip block 310 is provided with two sets of infrared sensors 350 on both sides. The two sets of infrared sensors 350 are arranged in parallel, with the set of infrared sensors 350 away from the connecting rod 321 aligned with the opening 312 to sense whether the power module has completely entered or left the chamber.

[0079] Specifically, two sets of infrared sensors 350 at a certain extreme position are used to determine whether the power module has completely entered the chamber. When one set of infrared sensors 350 at the quasi-opening 312 does not detect the power module, but the other set of infrared sensors 350 detects the power module, it is determined that the power module has entered the chamber.

[0080] Two sets of infrared sensors 350 at another extreme position are used to determine whether the power module has completely left the chamber. When one set of infrared sensors 350 at the quasi-opening 312 does not detect the power module, and the other set of infrared sensors 350 also does not detect the power module, it is determined that the power module has left the chamber.

[0081] like Figure 6 As shown, the infrared sensor 350 includes an infrared transmitter 351 and an infrared receiver 352, which are symmetrically arranged on both sides of the flip block 310 to realize the sensing function.

[0082] like Figure 1 , 15 As shown in Figure -17, the marking device 400 includes a marking guide rail 410, a marking machine body disposed on the upper side of the marking guide rail 410, and a dustproof device 420 on one side. A clamping mechanism 430 is provided on one side of the dustproof device 420 near the marking guide rail 410. A positioning mechanism 440 is provided on the lower side of the marking guide rail 410 and passes into the marking guide rail 410. A dust suction mechanism is connected to the other side of the marking guide rail 410 to prevent dust from contaminating other detection devices during marking.

[0083] The marking machine body is located on the upper side of the dustproof device 420 and close to the clamping mechanism 430. A cleaning mechanism 450 is provided inside the dustproof device 420 on the side away from the clamping mechanism 430. The dust suction mechanism has two dust suction ports 401 respectively facing the marking machine body and the cleaning mechanism 450, which are used to remove dust from the power module after marking.

[0084] like Figure 17 As shown, the marking guide rail 410 has two processing ports 411 on its upper side, which are respectively aligned with the marking machine body and the cleaning mechanism 450; the positioning mechanism 440 has two sets, which are respectively set on the lower side of the processing ports 411, for marking positioning and cleaning positioning.

[0085] like Figure 17-18As shown, the positioning mechanism 440 includes a positioning cylinder 441 and a U-shaped positioning rod 442 mounted on the piston rod of the positioning cylinder 441. The U-shaped positioning rod 442 is inserted into the marking guide rail 410 from bottom to top. The U-shaped positioning rod 442 is located on the side of the processing port 411 away from the clamping mechanism 430.

[0086] like Figure 17 , 19 As shown, the clamping mechanism 430 includes a clamping cylinder 431 and a clamping block 432. A clamping opening 412 is provided on the side of the processing port 411 aligned with the marking machine body away from the U-shaped positioning rod 442. The clamping block 432 is disposed in the clamping opening 412. The clamping block 432 has a rotating shaft 433 that penetrates the marking guide rail 410. The end of the rotating shaft 433 is connected to a crank disc 434. The crank disc 434 is hinged to the piston rod of the clamping cylinder 431. A clamping side plate 435 is provided on one side of the clamping cylinder 431. The clamping side plate 435 is fixed to one side of the marking guide rail 410, thus forming a crank structure for driving the clamping block 432 to press the power module onto the U-shaped positioning rod 442. Since the marking device 400 is inclined, only clamping is required, and pressing is not necessary.

[0087] like Figure 15-16 As shown, the dustproof device 420 includes a dustproof slide rail 421 and a dustproof cover 422 mounted on the dustproof slide rail 421. The top of the dustproof cover 422 is aligned with the marking machine body and has a processing passage 422A. The side of the dustproof cover 422 near the dust suction port 401 is designed as an open structure. The two dust suction ports 401 are supported by a dustproof plate 402. The dustproof plate 402 is aligned with the dustproof cover 422, thereby achieving complete closure during the marking process.

[0088] like Figure 15-17 As shown, the cleaning mechanism 450 includes a protective cover 451 and a cleaning motor 452 disposed inside the protective cover 451. A lifting cylinder 453 is installed at the end of the dustproof slide rail 421 away from the marking guide rail 410. The piston rod of the lifting cylinder 453 is connected to the protective cover 451. The protective cover 451 is in close contact with the dust cover 422. The motor shaft of the cleaning motor 452 is driven to connect to a cleaning shaft 454. The cleaning shaft 454 penetrates the protective cover 451 and the dust cover 422. A ring of cleaning brushes 455 is evenly distributed at the end of the cleaning shaft 454 located inside the dust cover 422 for cleaning dust on the surface of the power module.

[0089] like Figure 15 As shown, the dust cover 422 has a ventilation hole 422B on its side near the primary side of the cleaning mechanism 450, which is used to allow outside air to enter when the vacuuming mechanism is suctioning.

[0090] like Figure 1 , 8-9 The sorting and storage device 600 includes a parameter sorting and storage mechanism 700, a parameter defective product storage mechanism 900 on one side of the parameter sorting and storage mechanism 700, and a material pipe conveying mechanism 800 at the bottom of the parameter sorting and storage mechanism 700.

[0091] like Figure 1 , 8 As shown, the parameter defective product storage mechanism 900 includes an empty tube storage box 910 and a defective product storage box 920 arranged in parallel, and a defective product conveying cylinder 930 disposed between the two. The empty tube storage box 910 and the defective product storage box 920 both have material tubes stacked vertically in sequence. The top of the defective product storage box 920 is provided with a guide rail 940, which is aligned with the parameter sorting mechanism 500 and used to introduce the defective product power module sorted by the parameter sorting mechanism 500.

[0092] Specifically, the empty tube storage box 910 and the defective product storage box 920 have openings 901 on one side of their bottoms, and the side walls of the empty tube storage box 910 and the defective product storage box 920 near the opening 901 have protrusions 902. The defective product conveying cylinder 930 is equipped with a lifting cylinder 931, and the lifting cylinder 931 is equipped with a pneumatic gripper 932, so as to realize the fully automatic feeding and discharging of the material tube.

[0093] like Figure 1 , 9 As shown in Figure -10, the parameter sorting and storage mechanism 700 includes parallel and evenly distributed material tube fixing positions 701 for stacking material tubes. Each material tube fixing position 701 has an inlet 711 at one end for introducing the good power modules sorted by the parameter sorting mechanism 500. Each material tube fixing position 701 has elastic snap-fit ​​structures at both ends to support the material tube.

[0094] The specific parameter sorting and storage mechanism 700 includes an upper clamping bar 710 and a lower clamping bar 720. The inlet 711 is evenly distributed on the upper clamping bar 710. Support rods 702 are provided on both sides of the inlet 711 corresponding to the upper clamping bar 710 and the lower clamping bar 720. The two support rods 702 form a material tube fixing position 701 for stacking tube materials. The upper clamping bar 710 and the lower clamping bar 720 are provided with elastic snap-fit ​​structures at the material tube fixing position 701 corresponding to the material tube.

[0095] like Figure 9-10 As shown, the material tube conveying mechanism 800 includes a horizontal conveying mechanism 810 and a vertical conveying mechanism 820. The vertical conveying mechanism 820 has a top block cylinder 830 and a top rod cylinder 840 respectively at its two ends of the elastic clamping structure. The top block cylinder 830 is located on the lower side of the upper clamping bar 710 of the vertical conveying mechanism 820, and the top rod cylinder 840 is located on the lower side of the lower clamping bar 720 of the vertical conveying mechanism 820. The top block cylinder 830 and the top rod cylinder 840 can respectively open the corresponding elastic clamping structure, thereby realizing the clamping of the material tube.

[0096] like Figure 10-12 As shown, the upper locking strip 710 is provided with a tube inlet / outlet groove 712 at the tube fixing position 701. The elastic locking structure is that the elastic locking block 730 is set in the tube inlet / outlet groove 712. The elastic locking block 730 is hinged to one side wall of the tube inlet / outlet groove 712, and a retaining spring 731 is provided at the hinge. The piston rod of the top block cylinder 830 is provided with a lifting block 831. The lifting block 831 has a raised edge 832 integrally formed near the side of the elastic locking block 730 that is hinged to the tube inlet / outlet groove 712. The upper surface of the lifting block 831 is higher than the upper surface of the top block cylinder 830. The raised edge 832 is used to ensure that the elastic locking block 730 can be completely pushed open.

[0097] like Figure 13-14 As shown, the lower clamping strip 720 is provided with an elastic fixing groove 721, and the elastic clamping structure is an elastic sheet 740. One end of the elastic sheet 740 is set in the elastic fixing groove 721, and the other end of the elastic sheet 740 is integrally formed with a fixing protrusion 741 for clamping the material tube. The piston rod of the push rod cylinder 840 is connected to an L-shaped lifting rod 841. The bottom of the fixing protrusion 741 is formed into an inclined arc surface 742. The top of the L-shaped lifting rod 841 contacts the inclined arc surface 742, and thus pushes it to deform the elastic sheet 740.

[0098] like Figure 9 As shown, the horizontal conveying mechanism 810 includes an electric slide rail 811, a horizontal track 812, and a mounting platform 813; the mounting platform 813 is connected to the slider of the electric slide rail 811, and the mounting platform 813 is movably mounted on the horizontal track 812, so that the electric slide rail 811 can drive the mounting platform 813 to move along the horizontal track 812.

[0099] like Figure 12 , 14 As shown, the vertical conveying mechanism 820 includes a vertical cylinder 821 and a support plate 822 mounted on the vertical cylinder 821. There are two vertical cylinders 821, which are mounted on the mounting platform 813. The piston rod of the vertical cylinder 821 passes through the mounting platform and is connected to the support plate 822. The two support plates 822 are respectively equipped with a top block cylinder 830 and a top rod cylinder 840 to realize the lifting and lowering of the top block cylinder 830 and the top rod cylinder 840.

[0100] like Figure 10As shown, two support plates 822 are positioned between the top block cylinder 830 and the top rod cylinder 840, with a positioning block 823 and a sensing device 824. The mounting platform 813 is also equipped with a sensing device 824. The positioning block 823 is used to move the material tube left and right, while the sensing device 824 on the support plate 822 is used to sense whether there is a material tube on the support plate 822. The sensing device 824 on the mounting platform 813 is used to check whether there is a material tube on the support plate 822 after the vertical cylinder 821 descends. The sensing device 824 is an infrared sensor, such as the TCR5000 reflective photoelectric switch sensor.

[0101] A parameter sorting and storage method for a power module sorting system, wherein before parameter sorting and storage, one tube fixing position 701 is used to store empty tubes, and the remaining tube fixing positions 701 are used to stack and store tubes containing power modules. The parameter sorting and storage method includes:

[0102] Clamping: The vertical cylinder 821 drives the top block cylinder 830 and the top rod cylinder 840 to rise and respectively open the elastic locking structure. Before the vertical cylinder 821 rises, the top rod cylinder 840 is in the extended state and the top block cylinder 830 is in the retracted state. Then the top block cylinder 830 extends and clamps both ends of the empty material tube. Finally, the vertical cylinder 821 drives the empty material tube to descend and disengage from the inlet 711.

[0103] Release: The horizontal conveying mechanism 810 conveys the empty material tube to the lower side of the material tube fixing position 701 where the material tube needs to be replaced. The vertical cylinder 821 drives the top block cylinder 830 and the top rod cylinder 840 to rise and respectively push open the elastic locking structure. Then the top rod cylinder 840 retracts and disengages from the elastic plate 740, so that one end of the material tube is fixed. Then the top rod cylinder 840 extends again to push against the elastic plate 740. Then the top block cylinder 830 retracts. Then the top block cylinder 830 and the top rod cylinder 840 descend, and the other end of the material tube is also locked by the elastic locking block 730.

[0104] It should be noted that during the release step, when the push rod cylinder 840 retracts, the end of the material tube is pressed against the side of the lower clamping strip 720 by the push block cylinder 830 and will not fall off; while when the push block cylinder 830 retracts, the material tube is pressed against the side of the upper clamping strip 710 by the elastic plate 740 and the subsequent push rod cylinder 840.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A power module sorting system, characterized in that: It includes a feeding mechanism, insulation detection device, insulation sorting mechanism, parameter detection device, marking device, pin detection device, character detection device, parameter sorting mechanism and sorting storage device arranged from top to bottom; The feeding mechanism, insulation detection device, insulation sorting mechanism and parameter detection device are arranged vertically, while the marking device, pin detection device, character detection device, parameter sorting mechanism and sorting storage device are arranged at an angle. A corner flipping mechanism is provided between the parameter detection device and the marking device. The sorting and storage device includes a parameter sorting and storage mechanism, a parameter defective product storage mechanism is provided on one side of the parameter sorting and storage mechanism, and a material pipe conveying mechanism is provided at the bottom of the parameter sorting and storage mechanism; The corner flipping mechanism includes a flipping block and a flipping motor. The flipping block has a chamber with an opening on one side. The side of the flipping block away from the opening is connected to the flipping motor. The opening receives the power module of the parameter detection device and the opening is aligned with the power module of the marking device. A vertical plate is provided between the flipping motor and the flipping block. The rotating shaft of the flipping motor is connected to a connecting rod. The connecting rod passes through the vertical plate and is fixed to the flipping block. An arc-shaped plate is connected to one side of the vertical plate of the flipping block by a rod. The center of the arc surface of the arc-shaped plate is the axis of the connecting rod. The inner side of the arc-shaped plate is close to the flipping block. A rotating slot is provided on the flipping block. The inner side of the arc-shaped plate is inserted into the rotating slot. Two sets of infrared sensors are provided on both sides of each extreme position of the flipping block. The two sets of infrared sensors are arranged in parallel, with the set of infrared sensors away from the connecting rod aligned with the opening.

2. The power module sorting system as described in claim 1, characterized in that: The feeding mechanism includes a material tube storage box and a waste tube storage box arranged in parallel, and a feeding conveying cylinder arranged between the two. The material tube storage box and the waste tube storage box are stacked vertically in sequence. A feeding space is provided between the material tube storage box and the waste tube storage box. A robotic arm is provided between the feeding space and the inlet of the insulation detection device.

3. The power module sorting system as described in claim 1, characterized in that: Both the insulation sorting mechanism and the parameter sorting mechanism include a conveyor track structure and a sorting block with a vertically penetrating cavity. The sorting block is equipped with an opening and closing cylinder, and the extension rod of the opening and closing cylinder passes through the interior of the sorting block and is perpendicular to the penetrating direction of the cavity.

4. The power module sorting system as described in claim 3, characterized in that: The insulation sorting mechanism is equipped with a storage mechanism for defective insulation products on its lower side.

5. The power module sorting system as described in claim 3, characterized in that: Two parameter detection devices are provided. An insulation sorting mechanism is also provided between the parameter detection devices and the corner flipping mechanism. A receiving rail is provided on the lower side of the insulation sorting mechanism below the parameter detection devices. The receiving rail is aligned with the corner flipping mechanism.

6. The power module sorting system as described in claim 1, characterized in that: The parameter defective product storage mechanism includes an empty tube storage box and a defective product storage box arranged in parallel, and a defective product conveying cylinder arranged between the two. The empty tube storage box and the defective product storage box are stacked vertically in sequence. The top of the defective product storage box is provided with a guide rail, which is aligned with the parameter sorting mechanism.

7. The power module sorting system as described in claim 1, characterized in that: The parameter sorting and storage mechanism includes parallel and evenly distributed pipe fixing positions for stacking pipes. Each pipe fixing position has an inlet at one end and elastic snap-fit ​​structures at both ends.

8. The power module sorting system as described in claim 7, characterized in that: The material tube conveying mechanism includes a horizontal conveying mechanism and a vertical conveying mechanism. The vertical conveying mechanism has a top block cylinder and a top rod cylinder at each of its two elastic locking structures. The top block cylinder and the top rod cylinder can respectively open the corresponding elastic locking structure.

9. The parameter sorting and storage method of the power module sorting system as described in claim 8, characterized in that: One of the tube fixing positions is used to store empty tubes, and the remaining tube fixing positions are used to stack and store tubes containing power modules. The parameter sorting and storage method includes: Clamping: The top block cylinder and the top rod cylinder rise to open the elastic locking structure, then clamp the two ends of the empty material tube, and finally drive the empty material tube to descend and disengage from the inlet; Release: The empty material tube is conveyed to the lower side of the material tube fixing position that needs to be replaced. The top block cylinder and the top rod cylinder rise and respectively open the elastic locking structure. Then, the two ends of the empty material tube are released. Then, the top block cylinder and the top rod cylinder descend, and the elastic locking structure locks the empty material tube.

Images