IGBT module shell terminal bending and nut assembling integrated device

Abstract

The utility model belongs to the technical field of IGBT modules, and particularly relates to an IGBT module shell terminal bending and nut assembling integrated device which comprises a bearing unit, a nut feeding unit and a bending unit, the bending unit is provided with a first-stage bending mechanism capable of changing a terminal on an IGBT module shell from a horizontal state to an inclined state, and the nut feeding unit is provided with a second-stage bending mechanism capable of changing the terminal on the IGBT module shell from the horizontal state to the inclined state. The first-stage bending mechanism is used for bending a terminal in an inclined state, the second-stage bending mechanism is used for changing the terminal in the inclined state into a horizontal state from the inclined state, the bent terminal in the horizontal state covers the top of a groove hole in an IGBT module shell, the nut feeding unit and the bending unit are arranged, automatic nut feeding and terminal bending are achieved, labor force is reduced, the production efficiency is improved, and the production cost is reduced. According to the terminal bending device, the working efficiency is improved, the product quality is improved, the first-stage bending mechanism and the second-stage bending mechanism are matched, the terminal in the vertical state can be bent by 90 degrees, the bending precision is high, and the product quality can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of IGBT modules, in particular to an IGBT module shell terminal bending and nut assembly integrated device. Background Art

[0002] IGBT (Insulated Gate Bipolar Transistor) has the performance characteristics of high frequency, high voltage, high current, and especially easy to turn on and off. At present, IGBT has been widely used in various industries. The IGBT module housing is generally formed by injection molding by an injection molding machine. After the injection molding is completed, it is necessary to install nuts on the IGBT module housing, and then bend the terminals on the IGBT module housing, pass the terminal bolts through the terminal and connect them with the nuts, so as to realize the electrical connection between the device and the terminal.

[0003] In the prior art, nuts are usually placed on the IGBT module housing manually, and the terminals are bent manually with the aid of manual tools and jigs. This method has a slow operation speed and low production efficiency. It is difficult to ensure the consistency of products produced by operators with different proficiency levels, and the bending accuracy is difficult to ensure. In actual applications, short-circuit discharge between pins is prone to occur, resulting in module burning. Utility Model Content

[0004] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides an IGBT module housing terminal bending and nut assembly integrated device.

[0005] An integrated device for bending terminals of an IGBT module housing and assembling nuts, comprising: a supporting unit, the supporting unit being located inside a housing and used for positioning the IGBT module housing and conveying the IGBT module housing from a loading location to a designated processing location; a nut loading unit, the nut loading unit placing a required number of nuts on the IGBT module housing, the IGBT module housing being provided with slots corresponding to the nuts; a bending unit, the bending unit having a primary bending mechanism capable of changing the terminals on the IGBT module housing from a horizontal state to an inclined state, and a secondary bending mechanism capable of changing the terminals in an inclined state from an inclined state to a horizontal state, wherein the terminals in a horizontal state after bending cover the top of the slots on the IGBT module housing.

[0006] Furthermore, the primary bending mechanism includes a bending claw, which is mounted on a support plate. The support plate is moved in a horizontal direction by a first fluid cylinder, and a bending portion for bending the terminal is provided on the bending claw.

[0007] Furthermore, the secondary bending mechanism includes a pressure roller, which is mounted on a roller frame, and the roller frame is connected to a cantilever. The cantilever is driven by a second fluid cylinder to reciprocate in a horizontal direction, and the pressure roller pushes the inclined terminal to a horizontal state during the movement.

[0008] Furthermore, the secondary bending mechanism also includes a pressing piece located above the IGBT module housing, the pressing piece is installed on a support frame, the support frame is connected to the output end of the third fluid cylinder, and the pressing piece presses the terminal in a horizontal state by descending.

[0009] Furthermore, the secondary bending mechanism is provided with a fixing part, one end of which is connected to the hinge seat, and the middle part is connected to the output end of the fourth fluid cylinder, and the end of the fixing part away from the hinge seat can be rotatably pressed on the upper end surface of the IGBT module housing.

[0010] Furthermore, the supporting unit includes a loading plate, the bottom of which is slidably connected to the slide rail, and the loading plate is provided with a screw nut, which is cooperatively connected to the screw, and the screw is installed on a workbench inside the casing through a fixed seat, one end of the screw is connected to the output end of the drive motor, and the upper end surface of the loading plate is provided with a positioning plate, and the positioning plate is symmetrically provided with positioning blocks for positioning the side of the IGBT module housing, and the positioning plate is also provided with a positioning column, and the positioning column corresponds to the positioning hole on the IGBT module housing.

[0011] Furthermore, a first sensor for detecting whether the IGBT module housing is placed on the supporting unit is provided at the front end of the housing near the material loading.

[0012] Furthermore, a second sensor for detecting whether the nut is placed on the IGBT module housing is provided on the support plate at a position corresponding to the nut.

[0013] Furthermore, the nut feeding unit includes a vibration plate, which is connected to a straight vibration track. An end of the straight vibration track away from the vibration plate is provided with a feeding port, and a driving mechanism for driving the manipulator to move horizontally and vertically is provided above the feeding port.

[0014] Furthermore, a cleaning knife is provided at the bottom of the support plate, and the cleaning knife is used to clean burrs on the surface of the IGBT module housing.

[0015] The beneficial technical effects of the utility model are:

[0016] 1. The utility model is provided with a nut feeding unit and a bending unit, which realizes automatic nut feeding and precise bending of the terminal, reduces labor, improves work efficiency, and improves product quality.

[0017] 2. In the utility model, the IGBT module housing is transported to the corresponding working positions of the primary bending mechanism and the secondary bending mechanism in sequence through the supporting unit. The primary bending mechanism changes the terminal in the vertical state into an inclined state, and the secondary bending mechanism changes the terminal in the inclined state into a horizontal state. The terminal in the horizontal state is attached to the slot where the nut is placed, which limits the nut and prevents it from falling off the IGBT module housing. Through the cooperation of the primary bending mechanism and the secondary bending mechanism, the terminal in the vertical state is bent by 90°.

[0018] 3. The supporting unit in the utility model includes a positioning plate for placing the IGBT module housing, and positioning blocks are arranged on both sides of the positioning plate. The positioning blocks are adapted to the shape of the IGBT module housing, and the two positioning blocks cooperate with each other to position the IGBT module housing. In order to improve the accuracy of positioning the IGBT module housing, a vertical positioning column is further provided on the positioning plate, and the positioning column is adapted to the positioning hole on the IGBT module housing, which is beneficial to improve the accuracy of subsequent terminal bending and improve the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of an IGBT module housing terminal bending and nut assembly integrated device according to the utility model;

[0020] Figure 2 This is a front view of an IGBT module housing terminal bending and nut assembly integrated device according to the utility model;

[0021] Figure 3 It is a side view of an IGBT module housing terminal bending and nut assembly integrated device of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure inside the shell of an IGBT module shell terminal bending and nut assembly integrated device of the utility model;

[0023] Figure 5 It is a side view of the interior of a shell in an IGBT module shell terminal bending and nut assembly integrated device of the utility model;

[0024] Figure 6 It is a structural schematic diagram of the working state of the primary bending mechanism in the utility model;

[0025] Figure 7 It is a top view of the working state of the primary bending mechanism in the utility model;

[0026] Figure 8 It is a partial structural schematic diagram of the primary bending mechanism in the utility model;

[0027] Fig. 9The structure diagram of the secondary bending mechanism in the utility model is shown in FIG. Figure 1 ;

[0028] Fig.10 The structure diagram of the secondary bending mechanism in the utility model is shown in FIG. Figure 2 ;

[0029] Fig.11 It is a front view of the secondary bending mechanism in the utility model;

[0030] Fig.12 For this utility model Fig.11 A magnified schematic diagram of the middle A area;

[0031] Fig.13 It is a partial structural schematic diagram of the secondary bending mechanism in the utility model;

[0032] Fig.14 It is a structural schematic diagram of the supporting unit in the utility model;

[0033] Fig.15 It is a side view of the supporting unit in the utility model;

[0034] Fig.16 It is a structural schematic diagram of the nut feeding unit in the utility model;

[0035] Fig.17 It is a side view of the nut feeding unit in the utility model;

[0036] Fig.18 It is a structural schematic diagram of the straight vibration track in the utility model.

[0037] In the figure, 1, supporting unit, 11, feeding plate, 12, slide rail, 13, lead screw nut, 14, lead screw, 15, driving motor, 16, positioning plate, 17, positioning block, 18, positioning column, 2, nut feeding unit, 21, vibration plate, 22, straight vibration track, 23, feeding port, 24, manipulator, 25, driving mechanism, 3, bending unit, 31, primary bending mechanism, 311, bending claw, 3111, bending part, 312, supporting plate, 313 , first fluid cylinder, 32, secondary bending mechanism, 321, pressure roller, 322, roller frame, 323, cantilever, 324, second fluid cylinder, 325, pressing piece, 326, support frame, 327, third fluid cylinder, 328, fixing piece, 329, fourth fluid cylinder, 4, casing, 41, workbench, 5, IGBT module casing, 51, terminal, 52, slot, 53, nut, 6, first sensor, 7, second sensor, 8, cleaning knife. DETAILED DESCRIPTION

[0038] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0039] according to Figure 1-18 As shown, an IGBT module housing terminal bending and nut assembly integrated device includes: a supporting unit 1, which is located inside a housing 4 and is used to position an IGBT module housing 5 and transport the IGBT module housing 5 from a loading location to a designated processing location; a nut loading unit 2, which places a required number of nuts 53 on the IGBT module housing 5, and the IGBT module housing 5 is provided with slots 52 corresponding to the nuts 53; a bending unit 3, which has a primary bending mechanism 31 capable of changing a terminal 51 on the IGBT module housing 5 from a horizontal state to an inclined state, and a secondary bending mechanism 32 capable of changing the inclined terminal 51 from an inclined state to a horizontal state, and the terminal 51 in a horizontal state after bending covers the top of the slot 52 on the IGBT module housing 5.

[0040] When using the device, the IGBT module housing 5 is placed on the supporting unit, and the IGBT module housing 5 is transported to the bottom of the nut feeding unit 2 through the supporting unit 1. The required number of nuts 53 are placed in the slots 52 corresponding to the IGBT module housing 5 through the nut feeding unit 2. After the nuts 53 are placed, the IGBT module housing 5 is transported to the corresponding working positions of the primary bending mechanism 31 and the secondary bending mechanism 32 in sequence through the supporting unit 1. The primary bending mechanism 31 changes the terminal 51 in a vertical state into an inclined state, and the secondary bending mechanism 32 changes the terminal 51 in an inclined state into a horizontal state. The terminal 51 in a horizontal state is attached to the slot 52 where the nut 53 is placed, so as to limit the nut 53 and prevent the nut 53 from falling off the IGBT module housing 5. Through the device, the installation of the nut 53 and the bending of the terminal 51 are realized, the work efficiency is improved, and the labor is reduced. The bending mechanism is used to bend the terminal 51, which is beneficial to improve the bending accuracy of the terminal 51.

[0041] The supporting unit 1 and the bending unit 3 can be arranged inside the housing 4 as one group, two groups or more groups. Preferably, two groups of supporting units 1 and bending units 3 are arranged. The two groups of supporting units 1 and bending units 3 can be equipped with a group of nut feeding units 2. The two groups of supporting units 1 and bending units 3 are arranged, which further improves the bending efficiency of the terminal 51.

[0042] The utility model bends the terminal 51 by setting a primary bending mechanism 31 and a secondary bending mechanism 32 to cooperate with each other, which is beneficial to improving the bending accuracy of the terminal 51. At the same time, the vertical terminal 51 is first changed to an inclined state through the primary bending mechanism 31, and then the inclined terminal 51 is changed to a horizontal state through the secondary bending mechanism 32. Compared with directly bending the terminal 51 90°, the primary bending mechanism 31 plays a good transition role and has a protective effect on the terminal 51.

[0043] according to Figure 4-8 As shown, further, the primary bending mechanism 31 includes a bending claw 311, and the bending claw 311 is installed on a support plate 312. The support plate 312 is moved in a horizontal direction by a first fluid cylinder 313. The bending claw 311 is provided with a bending portion 3111 for bending the terminal 51.

[0044] The first fluid cylinder 313 is installed on the workbench 41 inside the shell through a bracket. Preferably, the first fluid cylinder 313 can be a cylinder, and the piston rod of the cylinder is connected to the support plate 312. The upper end surface of the support plate 312 is fixedly connected with a bending claw 311 by bolts. The shape of the bending claw 311 is not specifically limited in this embodiment. The front end of the bending claw 311 is provided with a bending portion 3111 that can allow the terminal 51 to change from a vertical state to an inclined state. Preferably, the bending portion 3111 can be a downwardly protruding inclined surface located at the front end of the bending claw 311. Under the drive of the first fluid cylinder 313, the bending claw 311 moves to both sides, and during the movement, the terminal 51 is pushed by the inclined surface, so that the terminal 51 changes from a vertical state to an inclined state. Further, a bending column can be provided on the inclined surface at the front end of the bending claw 311, and the bending column is inclined outward. After starting the first fluid cylinder 313, during the movement of the bending claw 311 to both sides, the bending column contacts the terminal 51 and pushes the terminal 51 from a vertical state to an inclined state.

[0045] When the terminal 51 is initially bent, that is, when it is changed from a vertical state to an inclined state, the supporting unit 1 transports the IGBT module housing 5 to the working position corresponding to the primary bending mechanism 31. At this time, the bending claw 311 is located near the middle position under the drive of the first fluid cylinder 313. At this time, the inclined portion on the bending claw 311 is a certain distance away from the terminal 51. A sensor is provided on the workbench 41. When the sensor detects the supporting unit 1, it controls the piston rod of the first fluid cylinder 313 to slide into the cylinder body. During the sliding process, the bending portion 3111 on the bending claw 311 contacts the terminal 51 and pushes the terminal 51 from a vertical state to an inclined state. Preferably, the sensor is a proximity switch, and a limiter corresponding to the proximity switch is provided on the supporting unit 1. When the limiter is close to the proximity switch, the proximity switch transmits a signal to the first fluid cylinder 313 and the power source of the supporting unit 1, and the supporting unit 1 stops moving in the horizontal direction, and the piston rod of the first fluid cylinder 313 slides toward the inside of the cylinder body. After the bending claw 311 completes the bending action on the terminal 51, the power source of the supporting unit 1 continues to work, and the IGBT module housing 5 is transported to the secondary bending mechanism 32, and then the piston rod of the first fluid cylinder 313 extends, driving the bending claw 311 to move to the specified position, waiting for the processing of the next IGBT module housing 5.

[0046] Preferably, each group of first-level bending mechanisms 31 is provided with corresponding bending claws 311 according to the need for bending the terminals 51. The IGBT module housing 5 provided in this embodiment is provided with four terminals 51, and the four terminals 51 are symmetrically arranged in pairs on the left and right. Therefore, two bending claws 311 are arranged in this embodiment, and the two bending claws 311 are symmetrically arranged with the moving track of the supporting unit 1 as the axis. Through two groups, the four terminals 51 located on both sides of the IGBT module housing 5 can be bent simultaneously, thereby improving work efficiency.

[0047] according to Figure 4 , Figure 5 ,as well as Figure 9-13 As shown, further, the secondary bending mechanism 32 includes a pressure roller 321, and the pressure roller 321 is installed on a roller frame 322. The roller frame 322 is connected to a cantilever 323. The cantilever 323 is driven by a second fluid cylinder 324 to reciprocate in the horizontal direction. During the movement of the pressure roller 321, the inclined terminal 51 is pushed to become a horizontal state.

[0048] The secondary bending mechanism 32 includes a pressure roller 321, which is installed on a roller frame 322 through a rotating shaft. The roller frame 322 is connected to a cantilever 323, and one end of the cantilever 323 away from the roller frame 322 is connected to a slide. A slider is provided at the bottom of the slide. The slide is slidably connected to the slide rail 12 through the slider, and the slide is connected to the piston rod of the second fluid cylinder 324.

[0049] Correspondingly, there are two groups of pressure rollers 321, which are symmetrically installed on two roller frames 322. The two second fluid cylinders 324 drive the slide plate to move horizontally along the slide rail 12, so that the cantilever 323 moves horizontally, thereby driving the pressure rollers 321 to push the terminal 51 from an inclined state to a horizontal state during the movement. Preferably, the two groups of slide plates move horizontally along the same track, and the two fluid cylinders are arranged in parallel to reduce the space occupied by the shell.

[0050] When the inclined terminal 51 is changed from an inclined state to a horizontal state by the pressure roller 321, the IGBT module housing 5 is first transported to the working position corresponding to the secondary bending mechanism 32 through the supporting unit 1. A proximity switch is provided on the workbench 41 at the secondary bending mechanism 32. When the IGBT module housing 5 is close to the proximity switch, the proximity switch transmits a signal to the supporting unit 1, and the power source equipped with the supporting unit 1 stops working. At this time, the piston rod of the fluid cylinder is in an extended state, and the pressure roller 321 is located near the middle. The proximity switch transmits a signal to the second fluid cylinder 324. The two second fluid cylinders 324 are started at the same time, and the piston rod slides into the cylinder body. During the sliding process, the pressure roller 321 pushes the inclined terminal 51 to change it to a horizontal state.

[0051] Furthermore, the secondary bending mechanism 32 also includes a pressing piece 325 located above the IGBT module housing 5, and the pressing piece 325 is installed on a support frame 326, and the support frame 326 is connected to the output end of the third fluid cylinder 327. The pressing piece 325 presses the terminal 51 in a horizontal state by descending.

[0052] The third fluid cylinder 327 is fixedly installed inside the casing 4, and the output end of the third fluid cylinder 327 is connected to the support frame 326. A pressing piece 325 is provided at the bottom of the support frame 326. This embodiment does not limit the overall shape of the pressing piece 325, but the lower end face of the pressing piece 325 is preferably a horizontal end face, that is, the contact surface with the terminal 51 is in a horizontal state. The pressing piece 325 is used to further press the terminal 51 in a horizontal state, thereby improving the bending accuracy of the terminal 51, which is beneficial to ensuring the quality of the product.

[0053] After the inclined terminal 51 is changed from an inclined state to a horizontal state by the pressure roller 321, the terminal 51 may not be bent completely, and the bending angle of the terminal 51 may be less than 90°. The third fluid cylinder 327 is started, and the support frame 326 is connected to the output end of the third fluid cylinder 327. The third fluid cylinder 327 drives the support frame 326 to move downward, thereby driving the pressing piece 325 to further bend the terminal 51, so as to ensure the bending accuracy of the terminal 51. When the terminal 51 is bent, the pressing piece 325 moves on the driving line of the third fluid cylinder 327, and the power source in the supporting unit 1 drives the supporting unit 1 to move toward the front end of the casing 4 and to the loading position of the IGBT module housing 5, so that the staff can remove the IGBT module housing 5 and replace it with a new IGBT module housing 5.

[0054] Furthermore, the secondary bending mechanism 32 is provided with a fixing part 328, one end of the fixing part 328 is connected to the hinge seat, the middle part is connected to the output end of the fourth fluid cylinder 329, and the end of the fixing part 328 away from the hinge seat can be rotatably pressed on the upper end surface of the IGBT module housing 5.

[0055] The fixing member 328 is a long rod structure, one end of which is fixed by a hinge seat, and the middle part is connected to the output end of the fourth fluid cylinder 329. The fixing member 328 is driven by the fourth fluid cylinder 329 to rotate with the hinge seat as the center. The fixing member 328 is rotated so that one end is pressed against the upper end surface of the IGBT module housing 5, thereby fixing the IGBT module housing 5 and preventing the IGBT module housing 5 from moving during the bending process of the terminal 51, thereby causing damage to the IGBT module housing 5.

[0056] During specific use, the IGBT module housing 5 is first moved to the working position of the secondary bending mechanism 32. At this time, the end of the fixing member 328 away from the hinge seat is located above the IGBT module housing 5 and is a certain distance away from the IGBT module housing 5. The fourth fluid cylinder 329 is started to drive the fixing member 328 to rotate with the hinge seat as the center, so that the end of the fixing member 328 away from the hinge seat is pressed on the upper end surface of the IGBT module housing 5, and then the second fluid cylinder 324 and the third fluid cylinder 327 are started in turn to bend the terminal 51. Through the cooperation of the fixing member 328, the pressure roller 321 and the pressing member 325, the bending effect of the terminal 51 is improved.

[0057] according to Figure 4 , Figure 5 , Fig.14 and Fig.15As shown, further, the supporting unit 1 includes a loading plate 11, the bottom of which is slidably connected to the slide rail 12, and the loading plate 11 is provided with a screw nut 53, which is cooperated with the screw, and the screw 14 is installed on the workbench 41 inside the casing 4 through a fixed seat, and one end of the screw 14 is connected to the output end of the drive motor 15. A positioning plate 16 is provided on the upper end surface of the loading plate 11, and a positioning block 17 for positioning the side of the IGBT module housing 5 is symmetrically provided on the positioning plate 16. A positioning column 18 is also provided on the positioning plate 16, and the positioning column 18 corresponds to the positioning hole on the IGBT module housing 5.

[0058] The supporting unit 1 includes a positioning plate 16 for placing the IGBT module housing 5. Positioning blocks 17 are arranged on both sides of the positioning plate 16. The positioning blocks 17 are adapted to the shape of the IGBT module housing 5. The two positioning blocks 17 cooperate with each other to position the IGBT module housing 5. In order to improve the accuracy of positioning the IGBT module housing 5, a vertical positioning column 18 is further provided on the positioning plate 16. The positioning column 18 is adapted to the positioning hole on the IGBT module housing 5, which is beneficial to improve the accuracy of subsequent bending of the terminal 51 and improve the quality of the product. The lower end surface of the positioning plate 16 is connected to the loading plate 11. The lower end surface of the loading plate 11 is provided with a slider. The loading plate 11 is slidably connected to the slide rail 12 on the workbench 41 through the slider. The power source of the above-mentioned supporting unit 1 is a driving motor 15. The output end of the driving motor 15 is connected to the end of the lead screw 14. The lead screw 14 is installed on the workbench 41 through a fixed seat. The lead screw 14 is connected with the lead screw nut 13, and the lead screw nut 13 is connected to the loading plate 11.

[0059] The loading plate 11 is first located at the loading position. The staff holds the IGBT module housing 5 and accurately installs the IGBT module housing 5 on the positioning plate 16 through the cooperation of the positioning block 17 and the positioning column 18. After the installation is completed, the start switch of the device is pressed to start the drive motor 15 and drive the screw 14 to rotate. Through the cooperation of the screw 14 and the screw nut 13, the IGBT module housing 5 is transported to the working positions corresponding to the nut loading unit 2, the primary bending mechanism 31 and the secondary bending mechanism 32, so as to realize automatic loading of the nut 53 and bending of the terminal 51, with high work efficiency.

[0060] according to Figure 4 As shown, further, a first sensor 6 for detecting whether the IGBT module housing 5 is placed on the supporting unit 1 is provided at the front end of the housing 4 near the material loading.

[0061] A first sensor 6 is provided near the loading point. When the first sensor 6 detects that the IGBT module housing 5 is placed on the supporting unit 1, the device operates normally. When the IGBT module housing 5 is not detected, the device stops working and sounds an alarm. When the staff operates it incorrectly, the setting of the first sensor 6 is helpful in protecting the device.

[0062] according to Figure 6 As shown, further, a second sensor 7 for detecting whether the nut 53 is placed on the IGBT module housing 5 is provided on the support plate 312 at a position corresponding to the nut 53 .

[0063] The IGBT module housing 5 is transported to the nut feeding unit 2 through the supporting unit 1. After the nut 53 is placed on the IGBT module housing 5 through the nut feeding unit 2, the IGBT module housing 5 is continued to be transported to the working position of the primary bending mechanism 31. At this time, the second sensor 7 is located above the nut 53. The second sensor 7 can detect whether a corresponding number of nuts 53 are accurately placed on the IGBT module housing 5 to prevent the nut 53 from being missed and affecting the normal use of the product. When the second sensor 7 detects the nut 53, the device performs normal bending work. If the second sensor 7 does not detect the nut 53, the device stops working and sounds an alarm to prevent the terminal 51 from being bent when there is no nut 53, resulting in waste of the IGBT module housing 5.

[0064] according to Figure 4 , Figure 5 , Fig.16 , Fig.17 ,and Fig.18 As shown, further, the nut feeding unit 2 includes a vibration plate 21, and the vibration plate 21 is connected to the straight vibration track 22. The straight vibration track 22 is provided with a feeding port 23 at one end away from the vibration plate 21, and a driving mechanism 25 for driving the manipulator 24 to move horizontally and vertically is provided above the feeding port 23.

[0065] The vibration disk 21 is installed at the rear end of the casing 4 through a bracket. The vibration disk 21 is connected to the direct vibration track 22. The nuts 53 are transported to the nut 53 loading position in an orderly manner through the vibration disk 21 and the direct vibration track 22. A loading port 23 is provided at the end of the direct vibration track 22 away from the vibration disk 21. The driving mechanism 25 drives the manipulator 24 to clamp the nut 53 at the loading port 23, and drives the manipulator 24 to place the nut 53 at the corresponding nut 53 placement position of the IGBT module housing 5. It is worth noting that the driving mechanism 25 drives the manipulator 24 to clamp, which is a prior art and will not be repeated here.

[0066] according to Figure 8As shown, further, a cleaning knife 8 is provided at the bottom of the support plate 312 , and the cleaning knife 8 is used to clean burrs on the surface of the IGBT module housing 5 .

[0067] The IGBT module housing 5 is generally formed by injection molding using an injection molding machine. After the injection molding is completed, the surface of the IGBT module housing 5 has many burrs. Aluminum wire needs to be welded on the IGBT module housing 5. The presence of burrs may affect the conductive properties of the aluminum wire and affect product quality. By setting a cleaning knife 8, the burrs can be cleaned during the initial bending of the terminal 51, which is beneficial to improving product quality.

[0068] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. An IGBT module housing terminal bending and nut assembly integrated device, characterized in that: include: A supporting unit (1), the supporting unit being located inside the housing (4) and being used to position the IGBT module housing (5) and to transport the IGBT module housing (5) from a loading location to a designated processing location; A nut loading unit (2), wherein the nut loading unit (2) places a required number of nuts (53) on an IGBT module housing (5), wherein the IGBT module housing (5) is provided with slots (52) corresponding to the nuts (53); A bending unit (3) comprising a primary bending mechanism (31) capable of changing a terminal (51) on an IGBT module housing (5) from a horizontal state to an inclined state, and a secondary bending mechanism (32) capable of changing the terminal (51) in an inclined state from an inclined state to a horizontal state, wherein the terminal (51) in a horizontal state after bending covers the top of a slot (52) on the IGBT module housing (5).

2. The IGBT module housing terminal bending and nut assembly integrated device according to claim 1, characterized in that: The primary bending mechanism (31) comprises a bending claw (311), wherein the bending claw (311) is mounted on a support plate (312), wherein the support plate (312) moves in a horizontal direction via a first fluid cylinder (313), and wherein a bending portion (3111) for bending a terminal (51) is provided on the bending claw (311).

3. The IGBT module housing terminal bending and nut assembly integrated device according to claim 2, characterized in that: The secondary bending mechanism (32) comprises a pressure roller (321), wherein the pressure roller (321) is mounted on a roller frame (322), wherein the roller frame (322) is connected to a cantilever (323), and wherein the cantilever (323) is driven by a second fluid cylinder (324) to reciprocate in a horizontal direction, and during the movement of the pressure roller (321), the inclined terminal (51) is pushed to become a horizontal state.

4. The IGBT module housing terminal bending and nut assembly integrated device according to claim 3, characterized in that: The secondary bending mechanism (32) further comprises a pressing member (325) located above the IGBT module housing (5); the pressing member (325) is mounted on a support frame (326); the support frame (326) is connected to an output end of a third fluid cylinder (327); and the pressing member (325) presses the terminal (51) in a horizontal state by descending.

5. The IGBT module housing terminal bending and nut assembly integrated device according to claim 4, characterized in that: The secondary bending mechanism (32) is provided with a fixing part (328), one end of the fixing part (328) is connected to the hinge seat, and the middle part is connected to the output end of the fourth fluid cylinder (329), and the end of the fixing part (328) away from the hinge seat can be rotatably pressed on the upper end surface of the IGBT module housing (5).

6. The IGBT module housing terminal bending and nut assembly integrated device according to claim 1, characterized in that: The supporting unit (1) comprises a loading plate (11), the bottom of which is slidably connected to a slide rail (12), the loading plate (11) is provided with a lead screw nut (53), the lead screw nut (53) is cooperatively connected to a lead screw (14), the lead screw (14) is mounted on a workbench (41) inside a housing (4) via a fixing seat, one end of the lead screw (14) is connected to an output end of a driving motor (15), a positioning plate (16) is provided on the upper end surface of the loading plate (11), a positioning block (17) for positioning the side of an IGBT module housing (5) is symmetrically provided on the positioning plate (16), and a positioning column (18) is also provided on the positioning plate (16), and the positioning column (18) corresponds to a positioning hole on the IGBT module housing (5).

7. The IGBT module housing terminal bending and nut assembly integrated device according to claim 6, characterized in that: A first sensor (6) for detecting whether the IGBT module housing (5) is placed on the supporting unit (1) is provided at the front end of the housing (4) near the material feeder.

8. The IGBT module housing terminal bending and nut assembly integrated device according to claim 2, characterized in that: A second sensor (7) for detecting whether the nut (53) is placed on the IGBT module housing (5) is provided on the support plate (312) at a position corresponding to the nut (53).

9. The IGBT module housing terminal bending and nut assembly integrated device according to claim 1, characterized in that: The nut feeding unit (2) comprises a vibration plate (21), the vibration plate (21) is connected to a straight vibration track (22), a feeding port (23) is provided at one end of the straight vibration track (22) away from the vibration plate (21), and a driving mechanism (25) is provided above the feeding port (23) for driving a manipulator (24) to move horizontally and vertically.

10. The IGBT module housing terminal bending and nut assembly integrated device according to claim 2, characterized in that: A cleaning knife (8) is provided at the bottom of the support plate (312), and the cleaning knife (8) is used to clean burrs on the surface of the IGBT module housing (5).

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