An IGBT module shell nut automatic assembling mechanism

Abstract

The application discloses an automatic assembling mechanism for IGBT module shell nuts, which comprises a box body, a feeding mechanism, a discharging mechanism, a platform mechanism, a material moving mechanism, a pushing mechanism and a discharging mechanism, wherein the feeding mechanism, the discharging mechanism, the platform mechanism, the material moving mechanism, the pushing mechanism and the discharging mechanism are arranged on the box body, the outlet of the feeding mechanism is connected with the discharging mechanism, the material moving mechanism is above the platform mechanism, the discharging mechanism and the discharging mechanism, IGBT module shells are fixed on the platform mechanism, and the pushing mechanism is arranged at the two ends of the platform mechanism. The application provides an automatic assembling mechanism for IGBT module shell nuts, realizes automatic assembling of nuts in IGBT module shells, simultaneously assembles nuts at the two ends of the IGBT module shell, improves assembling efficiency and guarantees product quality.

Description

Technical Field

[0001] This invention belongs to the field of nut feeding equipment, specifically relating to an automatic assembly mechanism for IGBT module housing nuts. Background Technology

[0002] An IGBT module is a modular semiconductor product consisting of an IGBT and a FWD (Fuel Wire) bridged and packaged using a specific circuit. The packaged IGBT module is directly used in equipment such as frequency converters and UPS (Uninterruptible Power Supply). During assembly, nuts need to be inserted into the IGBT module housing mold. Since nuts need to be inserted at both ends of the IGBT module, manual nut insertion is inefficient.

[0003] In existing technologies, such as the automatic assembly equipment for plastic nuts disclosed in Chinese patent CN 114102514 A, automated assembly can be achieved, which can improve work efficiency and product quality. However, the existing technology only installs nuts on one side of the product, making it inconvenient and inefficient to install nuts on both sides of the IGBT module housing. Summary of the Invention

[0004] The purpose of this invention is to propose an automatic assembly mechanism for IGBT module housing nuts, which solves the problems of inconvenient and inefficient installation of nuts on both sides of the IGBT module housing in the prior art.

[0005] Therefore, the present invention provides an automatic assembly mechanism for IGBT module housing nuts, comprising:

[0006] The device includes a housing, a feeding mechanism, a discharging mechanism, a platform mechanism, a transferring mechanism, a pushing mechanism, and a discharging mechanism. The feeding mechanism, discharging mechanism, platform mechanism, transferring mechanism, pushing mechanism, and discharging mechanism are mounted on the housing. The outlet of the feeding mechanism is connected to the discharging mechanism. The transferring mechanism is located above the platform mechanism, discharging mechanism, and discharging mechanism. An IGBT module housing is fixed on the platform mechanism, and pushing mechanisms are provided at both ends of the platform mechanism.

[0007] Preferably, the feeding mechanism includes a vibratory feeder, a slide rail, and a pressure plate. The slide rail is inclined and its upper end is connected to the outlet of the vibratory feeder. The pressure plate is fixedly installed above the slide rail. The feeding mechanism is used to arrange scattered nuts into a row for easy positioning.

[0008] Preferably, the discharge mechanism includes a first sliding seat, a first cylinder, a first slide rail, a first push block, a second sliding seat, a second cylinder, a second slide rail, and a second push block. The first and second sliding seats are horizontally arranged and perpendicular to each other. The center of the second sliding seat is connected to one end of the first sliding seat. The first slide rail is disposed inside the first sliding seat. The first push block is slidably connected to the first slide rail. The first cylinder is disposed at one end of the first sliding seat from the second sliding seat and is fixedly connected to the first push block. A connecting hole is provided on the side wall of the first sliding seat, and the connecting hole is connected to the outlet of the slide rail. A second slide rail is disposed inside the second sliding seat. The second push block is slidably connected to the second slide rail. The second cylinder is disposed at one end of the second sliding seat and is fixedly connected to the second push block. A notch is provided on the side wall of the second sliding seat, and the notch communicates with the first sliding seat. A plurality of positioning grooves are provided on the second push block. The first push block pushes the nut that has slid from the slide rail into the first sliding seat into the positioning groove in the second sliding seat. The second push block slides inside the second sliding seat, causing the nut to sequentially enter the positioning groove on the second push block.

[0009] Preferably, the platform mechanism is provided with a fixed mold, and the IGBT module housing is fixedly installed on the fixed mold.

[0010] Preferably, the IGBT module housing has several nut grooves at both ends, and the fixing mold has several nut slides at both ends, with each nut slide corresponding to a nut groove. Nuts are assembled into nut grooves from the nut slides.

[0011] Preferably, the distance between two adjacent nut slideways is the same as the distance between two adjacent positioning grooves. By pre-positioning the nuts using the positioning grooves, the distance between the nuts is made the same as the distance between the nut slideways. The material transfer mechanism can directly move multiple nuts into the nut slideways without adjusting the distance between the nuts, thus improving efficiency.

[0012] Preferably, several fixed molds are provided, and each fixed mold has a pushing mechanism at each end. The pushing mechanism is used to push the nut into the nut groove.

[0013] Preferably, the pushing mechanism includes a third cylinder, a third slide rail, and a third push block. The third cylinder and the third slide rail are arranged on both sides of the fixed mold and are parallel to the direction of the nut slide rail of the fixed mold. The third push block is slidably connected on the third slide rail and is fixedly connected to the third cylinder.

[0014] Preferably, the third push block is provided with a push arm, which is located within the nut slide.

[0015] Preferably, the material transfer mechanism includes a three-axis robotic arm, a first robotic claw, and a second robotic claw. The first and second robotic claws are mounted at the ends of the three-axis robotic arm. The first robotic claw is used to move the nut from the positioning groove to the nut slide, and the second robotic claw is used to move the IGBT module housing with the nut installed from the mold to the conveyor belt.

[0016] More preferably, the first mechanical gripper includes four suction cups.

[0017] Beneficial effects:

[0018] 1. This invention provides an automatic assembly mechanism for IGBT module housing nuts, which enables automatic assembly of nuts into the IGBT module housing, and the nuts at both ends of the IGBT module housing are assembled simultaneously, thereby improving assembly efficiency and ensuring product quality.

[0019] 2. In existing technologies, assembling the nuts on the IGBT module housing typically requires inserting the nuts into the nut slots of the IGBT module housing from top to bottom, and then reversing the direction to install the other side. However, this assembly method requires two installations, and the nuts are prone to slipping out when reversing the direction, affecting assembly efficiency and product quality. This invention uses a fixed mold on a platform mechanism to horizontally place the IGBT module housing, and simultaneously pushes the nuts at both ends of the IGBT module housing into the nut slots along the nut slideways using a pushing mechanism. This results in high assembly efficiency, eliminates the need to reverse the orientation of the IGBT module housing, prevents the nuts from loosening and slipping out, and ensures product quality.

[0020] 3. The nut slide can both position the nut and guide the assembly of the nut. The third push block in the pushing mechanism is equipped with multiple push arms. With the nut slide, multiple nuts on one end of the IGBT module housing can be pushed into the nut groove at the same time. The nut assembly speed is fast and the assembly position is accurate.

[0021] 4. Due to the large number of nuts, quickly and accurately placing them into the nut slides is a challenge. This invention arranges the nuts in a row using a vibrating plate and slides. The first and second pushers in the feeding mechanism sequentially push the nuts into the positioning slots, pre-positioning them. Since the distance between two adjacent nut slides is the same as the distance between two adjacent positioning slots, pre-positioning the nuts in the positioning slots ensures that the distance between the nuts matches the distance between the nut slides. This allows the material transfer mechanism to directly move multiple nuts from the positioning slots into the nut slides without needing to adjust the nut spacing, thus shortening the nut movement time and improving assembly efficiency.

[0022] 5. The material transfer mechanism has a first mechanical claw and a second mechanical claw, which can move the nut from the positioning groove into the nut slide and move the assembled IGBT module housing from the platform mechanism to the discharge mechanism. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of an embodiment of an automatic assembly mechanism for IGBT module housing nuts according to the present invention;

[0025] Figure 2 This is a schematic diagram of the feeding mechanism of an embodiment of the automatic assembly mechanism for IGBT module housing nuts of the present invention;

[0026] Figure 3 This is a schematic diagram of the pushing mechanism in an embodiment of an automatic assembly mechanism for IGBT module housing nuts according to the present invention;

[0027] Figure 4 This is a schematic diagram of the material transfer mechanism in an embodiment of an automatic assembly mechanism for IGBT module housing nuts according to the present invention;

[0028] In the diagram: 1-box body, 2-feeding mechanism, 21-vibrating plate, 22-slide rail, 23-pressure plate, 3-discharge mechanism, 31-first sliding seat, 32-first cylinder, 33-first slide rail, 34-first push block, 35-second sliding seat, 36-second cylinder, 37-second slide rail, 38-second push block, 39-connecting hole, 310-notch, 311-positioning groove, 4-platform mechanism, 41-fixed mold, 42-nut slide rail, 5-material transfer mechanism, 51-three-axis robotic arm, 52-first robotic claw, 53-second robotic claw, 6-pushing mechanism, 61-third cylinder, 62-third slide rail, 63-third push block, 64-push arm, 7-discharge mechanism. Detailed Implementation

[0029] The invention will be more readily understood by referring to the following detailed description of preferred embodiments and included examples. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. In case of conflict, the definitions in this specification shall prevail.

[0030] Example 1:

[0031] This invention provides an automatic assembly mechanism for IGBT module housing nuts, which enables the automatic assembly of nuts into the IGBT module housing, and the nuts at both ends of the IGBT module housing are assembled simultaneously, thereby improving assembly efficiency and ensuring product quality.

[0032] like Figure 1-4 The automatic assembly mechanism for IGBT module housing nuts shown includes a housing 1, a feeding mechanism 2, a discharging mechanism 3, a platform mechanism 4, a transferring mechanism 5, a pushing mechanism 6, and a discharging mechanism 7. The feeding mechanism 2, the discharging mechanism 3, the platform mechanism 4, the transferring mechanism 5, the pushing mechanism 6, and the discharging mechanism 7 are arranged on the housing 1. The outlet of the feeding mechanism 2 is connected to the discharging mechanism 3. The transferring mechanism 5 is above the platform mechanism 4, the discharging mechanism 3, and the discharging mechanism 7. The IGBT module housing is fixed on the platform mechanism 4, and the pushing mechanism 6 is provided at both ends of the platform mechanism 4.

[0033] The feeding mechanism 2 includes a vibratory feeder 21, a slide 22, and a pressure plate 23. The slide 22 is inclined and its upper end is connected to the outlet of the vibratory feeder 21. The pressure plate 23 is fixedly installed above the slide 22. The vibratory feeder 21 arranges the nuts in a row inside the slide 22, and the pressure plate 23 prevents the nuts from coming out from above the slide 22.

[0034] The discharge mechanism 3 includes a first sliding seat 31, a first cylinder 32, a first slide rail 33, a first push block 34, a second sliding seat 35, a second cylinder 36, a second slide rail 37, and a second push block 38. The first sliding seat 31 and the second sliding seat 35 are horizontally arranged and perpendicular to each other. The center of the second sliding seat 35 is connected to one end of the first sliding seat 31. The first slide rail 33 is disposed inside the first sliding seat 31. The first push block 34 is slidably connected on the first slide rail 33. The first cylinder 32 is disposed at one end of the first sliding seat 31 that is perpendicular to the second sliding seat 35. Cylinder 32 is fixedly connected to the first push block 34. The side wall of the first sliding seat 31 is provided with a connecting hole 39, which is connected to the outlet of the slide rail 22. The second sliding seat 35 is provided with a second slide rail 37, and the second push block 38 is slidably connected on the second slide rail 37. The second cylinder 36 is located at one end of the second sliding seat 35 and is fixedly connected to the second push block 38. The side wall of the second sliding seat 35 is provided with a notch 310, which is connected to the first sliding seat 31. The second push block 38 is provided with two parallel positioning grooves 311. The nut enters the first sliding seat 31 through the connecting hole 39. The first cylinder 32 pushes the first push block 34 to slide on the first slide rail 33, pushing the nut into the positioning groove 311 on the second push block 38 that is pushed in from the notch 310. The second cylinder 36 drives the second push block 38 to slide on the second slide rail 37, so that the nut enters the two positioning grooves 311 in sequence.

[0035] The platform mechanism 4 is equipped with a fixed mold 41, on which the IGBT module housing is fixedly mounted. Several nut grooves are provided at both ends of the IGBT module housing, and several nut slides 42 are provided at both ends of the fixed mold 41, with each nut slide corresponding to a nut groove. The distance between two nut slides 42 is the same as the distance between two positioning grooves 311. Two fixed molds 41 are provided, and each fixed mold 41 has a pushing mechanism 6 at each end.

[0036] The pushing mechanism 6 includes a third cylinder 61, a third slide rail 62, and a third push block 63. The third cylinder 61 and the third slide rail 62 are arranged on both sides of the fixed mold 41 and are parallel to the direction of the nut slide rail 42 of the fixed mold 41. The third push block 63 is slidably connected on the third slide rail 62 and is fixedly connected to the third cylinder 61. A push arm 64 is provided on the third push block 63 and is located inside the nut slide rail 42. The third cylinder 61 drives the third push block 63 to slide on the third slide rail, and the push arm 64 pushes the nut from the nut slide rail 42 into the nut groove.

[0037] The discharge mechanism 7 is a conveyor belt.

[0038] The material handling mechanism 5 includes a three-axis robotic arm 51, a first robotic gripper 52, and a second robotic gripper 53. The first robotic gripper 52 and the second robotic gripper 53 are mounted at the end of the three-axis robotic arm 51. The first robotic gripper 52 is used to move the nut from the positioning groove 311 to the nut slide 42, and the second robotic gripper 53 is used to move the IGBT module housing with the nut installed from the mold to the conveyor belt. The first robotic gripper 52 is equipped with four suction cups for picking up the nut. The three-axis robotic arm 51 can drive the first robotic gripper 52 and the second robotic gripper 53 to perform linear motion in the XYZ directions.

[0039] Working principle: The vibratory feeder 21 arranges the nuts in a row and slides them from the slide rail 22 into the first sliding seat 31. The first cylinder 32 pushes the first pusher block 34 to push the nuts into the positioning grooves 311 on the second pusher block 38. Sequentially, the second cylinder 36 drives the second pusher block 38 to move, causing the nuts to enter the multiple positioning grooves 311 on the second pusher block 38 in sequence. The first mechanical gripper 52 moves the nuts from the positioning grooves 311 to the nut slide rail 42. The third cylinder 61 drives the third pusher block 63 to slide, and the pusher arm 64 pushes the nuts into the nut grooves in the IGBT module housing. The second mechanical gripper 53 moves the IGBT module housing from the fixed mold 41 to the conveyor belt.

Claims

1. An automatic assembly mechanism for IGBT module housing nuts, characterized in that, include: The enclosure includes a housing, a feeding mechanism, a discharging mechanism, a platform mechanism, a transferring mechanism, a pushing mechanism, and a discharging mechanism. The feeding mechanism, discharging mechanism, platform mechanism, transferring mechanism, pushing mechanism, and discharging mechanism are mounted on the housing. The outlet of the feeding mechanism is connected to the discharging mechanism. The transferring mechanism is located above the platform mechanism, discharging mechanism, and discharging mechanism. An IGBT module housing is fixed on the platform mechanism, and pushing mechanisms are provided at both ends of the platform mechanism. The feeding mechanism includes a vibrating plate, a slide rail, and a pressure plate. The slide rail is inclined and its upper end is connected to the outlet of the vibrating plate. The pressure plate is fixedly installed above the slide rail. The discharge mechanism includes a first sliding seat, a first cylinder, a first slide rail, a first push block, a second sliding seat, a second cylinder, a second slide rail, and a second push block. The first sliding seat and the second sliding seat are horizontally arranged and perpendicular to each other. The center of the second sliding seat is connected to one end of the first sliding seat. The first slide rail is disposed inside the first sliding seat. The first push block is slidably connected on the first slide rail. The first cylinder is disposed at the end of the first sliding seat away from the second sliding seat. The first cylinder is fixedly connected to the first push block. A connecting hole is provided on the side wall of the first sliding seat, and the connecting hole is connected to the outlet of the slide rail. A second slide rail is disposed inside the second sliding seat. The second push block is slidably connected on the second slide rail. The second cylinder is disposed at one end of the second sliding seat, and the second cylinder is fixedly connected to the second push block. A notch is provided on the side wall of the second sliding seat, and the notch communicates with the first sliding seat. A plurality of positioning grooves are provided on the second push block. The platform mechanism is equipped with a fixed mold, and the IGBT module housing is fixedly installed on the fixed mold. The IGBT module housing has several nut grooves at both ends, and the fixing mold has several nut slides at both ends, with each nut slide corresponding to a nut groove. The distance between two adjacent nut slideways is the same as the distance between two adjacent positioning grooves; The pushing mechanism includes a third cylinder, a third slide rail, and a third push block. The third cylinder and the third slide rail are arranged on both sides of the fixed mold and are parallel to the direction of the nut slide rail of the fixed mold. The third push block is slidably connected on the third slide rail and is fixedly connected to the third cylinder. The material transfer mechanism includes a three-axis robotic arm, a first robotic claw, and a second robotic claw. The first and second robotic claws are mounted at the ends of the three-axis robotic arm. The first robotic claw is used to move the nut from the positioning groove to the nut slide, and the second robotic claw is used to move the IGBT module housing with the nut installed from the mold to the conveyor belt.

2. The automatic assembly mechanism for IGBT module housing nuts according to claim 1, characterized in that, Several fixed molds are provided, and each fixed mold has a pushing mechanism at both ends.

3. The automatic assembly mechanism for IGBT module housing nuts according to claim 1, characterized in that, The third push block is provided with a push arm, which is located inside the nut slide.

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