IGBT electronic component angle-adjustable terminal folding device

Abstract

The application provides an IGBT electronic component adjustable-angle terminal bending device, which comprises a base, a rotatable support assembly, an IGBT pipe, a material guiding groove pipe, a connecting transition block, a bending die set and a material blocking mechanism. The base has an inclined installation surface; the material guiding groove pipe is installed on a rotating disc of the rotatable support assembly, and the bottom surface of the material guiding groove pipe is provided with a lower open groove; and the bending fixed die and the bending movable die are respectively located on the two sides below the material guiding groove pipe. The IGBT pipe serves as the incoming material package of the IGBT electronic component, directly butts against the material guiding groove pipe through the connecting transition block, and directly and conveniently feeds the material. Through the inclined material guiding groove pipe form, the gravity is used to promote the automatic feeding of the IGBT electronic component, and the structure design is simplified. The material guiding groove pipe is adjusted in angle through the rotatable support assembly, the initial position angle of the IGBT electronic component terminal relative to the bending die set can be adjusted, the bending angle is quickly adjusted, and the precision of the IGBT electronic component terminal bending angle is ensured.

Description

Technical Field

[0001] This invention relates to the field of IGBT manufacturing technology, specifically to an adjustable angle terminal bending device for IGBT electronic components. Background Technology

[0002] IGBT is short for Insulated Gate Bipolar Transistor. Packaged IGBT modules are directly used in equipment such as frequency converters and UPS uninterruptible power supplies.

[0003] During the production and assembly of IGBT modules, the terminals of the IGBT electronic components need to be bent at a certain angle to meet actual assembly requirements. Currently, terminal bending is mainly done manually or by manually feeding individual components into bending dies, resulting in low work efficiency and low bending angle accuracy. The bending strength of terminals in different batches of IGBT modules also varies, leading to differences in bending angles produced by the same bending die. If the bending angle exceeds the specification, it will affect subsequent assembly operations. Current bending dies cannot directly adjust the bending angle, requiring die core replacement, which is time-consuming and impacts production efficiency. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide an adjustable angle terminal bending device for IGBT electronic components.

[0005] To achieve the above objectives, the technical solution adopted by the present invention to solve its technical problem is: an adjustable angle terminal bending device for IGBT electronic components, comprising:

[0006] The base has an inclined mounting surface;

[0007] A rotatable support assembly includes a support base, a turntable, and a locking mechanism. The support base is mounted on an inclined mounting surface of the base, the turntable is rotatably mounted on the support base, and the locking mechanism is used to lock the turntable after it rotates to a set angle.

[0008] An IGBT tube has IGBT electronic components arranged sequentially along its length inside its cavity. The width of the IGBT tube cavity is slightly greater than the thickness of the IGBT electronic component substrate, and the height of the IGBT tube cavity is slightly greater than the total height of the IGBT electronic component substrate and terminals.

[0009] A feed channel tube is installed on the turntable of the rotatable support assembly. The width of the cavity of the feed channel tube is the same as the width of the IGBT feed tube. The height of the cavity of the feed channel tube is slightly greater than the height of the IGBT electronic component base. The bottom surface of the feed channel tube is provided with a lower opening slot, through which the terminals of the IGBT electronic component pass.

[0010] A connecting transition block is used to connect the IGBT tube and the guide trough tube. Under the action of gravity, the IGBT electronic components in the IGBT tube enter the guide trough tube sequentially through the connecting transition block.

[0011] A bending module is mounted on the inclined mounting surface of the base. The bending module includes a fixed bending die and a moving bending die, which are located on both sides below the guide trough tube.

[0012] The material blocking mechanism is used to control the forward movement and stopping of IGBT electronic components in the material guide tube.

[0013] This invention provides an IGBT feed tube as the incoming packaging for IGBT electronic components. It directly connects to the feed trough via a connecting transition block, ensuring convenient and direct material supply. The inclined feed trough utilizes gravity to automatically feed the IGBT electronic components, simplifying the structural design. The feed trough's angle is adjustable via a rotatable support assembly, allowing for adjustment of the initial angle of the IGBT electronic component terminals relative to the bending module. This enables rapid adjustment of the bending angle, ensuring the accuracy of the IGBT electronic component terminal bending angle.

[0014] Furthermore, a bending angle detection device is provided downstream of the bending module, which is used to detect the terminal angle of the IGBT electronic component after bending.

[0015] Using the preferred scheme described above, an alarm notification device can be optionally installed to promptly alert the user when defective products are detected, and to adjust the angle of the feed trough in a timely manner.

[0016] Furthermore, a rejection mechanism for rejecting defective products is provided at the end of the feed trough.

[0017] By adopting the above-mentioned preferred solution, defective products can be promptly removed, sorted, and processed to prevent mixing.

[0018] Furthermore, the rotatable support assembly also includes a rotary drive mechanism and a turntable angle detection device. The rotary drive mechanism is used to drive the turntable to rotate, and the turntable angle detection device is used to detect the angle between the turntable and the guide tube. After the bending angle detection device detects that the terminal angle exceeds the specification, the rotary drive mechanism drives the turntable and the guide tube to rotate by a correction angle.

[0019] By adopting the above-mentioned preferred solution, the bending angle can be automatically adjusted, thereby improving the level of intelligence.

[0020] Furthermore, the bending fixed die includes a fixed module and a fixed die mounting base. The fixed die mounting base is fixedly mounted on the inclined mounting surface of the base, and the fixed module is fixedly mounted on the fixed die mounting base. The bending moving die includes a moving module, a moving die mounting base, and a moving die cylinder. The moving die mounting base is fixedly mounted on the inclined mounting surface of the base, and the moving module is slidably mounted on the moving die mounting base. The moving die cylinder drives the moving module to reciprocate. In the left-right direction, the fixed module and the moving module are arranged opposite to each other. In the height direction, the upper surface of the moving module is lower than the lower surface of the fixed module.

[0021] Furthermore, a preload block is connected to the top of the moving module via a spring.

[0022] Using the above-mentioned preferred scheme, a pre-compression block is used to pre-compress the terminals of the IGBT electronic components to ensure that the terminals remain in a stable position when the moving module and the stationary module are bent.

[0023] Furthermore, the end face of the moving module is an inclined plane, the angle between the inclined plane and the upper surface is an obtuse angle, and the angle between the inclined plane and the lower surface is an acute angle. The fixed mold mounting base is also provided with a shearing block. In the height direction, the height of the upper surface of the shearing block is slightly lower than the height of the bottom surface of the moving module. When bending, the moving module first cooperates with the shearing block to cut the IGBT electronic component terminals, and then cooperates with the fixed module to bend the cut terminals.

[0024] By adopting the above-mentioned preferred solution, the excessively long part of the terminal can be cut first, and then bent, forming the terminal in one step.

[0025] Furthermore, the material blocking mechanism includes a material blocking plate, a material blocking cylinder, a clamping pin, a pin seat, a compression spring, and a linkage plate. The material blocking cylinder drives the material blocking plate to reciprocate. The guide channel tube is located downstream of the bending module and has a material blocking section groove parallel to its cross-section. The clamping pin is movably mounted on the pin seat. The clamping pin has a flange portion in its middle. The compression spring is located between the flange portion and the pin seat. The side of the guide channel tube has a through hole for the clamping pin to pass through. The linkage plate is connected to the clamping pin. When the material blocking cylinder drives the material blocking plate to the material blocking position, the material blocking arm of the material blocking plate passes through the material blocking section groove of the guide channel tube. The material blocking plate also presses against the linkage plate and drives the clamping pin to disengage from the IGBT electronic component of the guide channel tube. When the material blocking cylinder drives the material blocking plate to retract and release the material blocking state, the material blocking plate disengages from the linkage plate. Under the action of the compression spring, the clamping pin passes through the through hole of the guide channel tube and presses against the side of the IGBT electronic component base.

[0026] Furthermore, the distance between the baffle arm and the clamping pin of the baffle plate is greater than 1 times the width of the IGBT electronic component base and less than 2 times the width of the IGBT electronic component base.

[0027] By adopting the above-mentioned preferred solution, the unbent product can be bent after being blocked, and the bent product will automatically move downwards, thus realizing continuous bending of the IGBT electronic component terminals.

[0028] Furthermore, an indicator scale for indicating the angular position of the turntable is provided between the support base and the turntable.

[0029] The preferred solution described above provides a more intuitive representation of angle data and facilitates manual adjustment. Attached Figure Description

[0030] 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.

[0031] Figure 1 This is a structural diagram of the IGBT electronic component.

[0032] Figure 2 This is a structural diagram of the IGBT electronic component terminals being bent.

[0033] Figure 3 This is a schematic diagram of one embodiment of the present invention.

[0034] Figure 4 This is a cross-sectional view of one embodiment of the present invention.

[0035] Figure 5 This is a structural schematic diagram of a rotatable support component.

[0036] Figure 6 This is a structural diagram of the bending module.

[0037] Figure 7 This is a schematic diagram of the material blocking mechanism in the material blocking state.

[0038] Figure 8 This is a schematic diagram of the material blocking mechanism releasing its blocking state.

[0039] The numbers and letters in the diagram represent the names of the corresponding components:

[0040] 10-Base; 11-Inclined mounting surface; 20-Rotable support assembly; 21-Support base; 22-Turntable; 23-Locking mechanism; 30-IGBT material tube; 40-Guide groove tube; 41-Stop section groove; 50-Connecting transition block; 60-Bending module; 61-Bending fixed die; 611-Fixed module; 612-Fixed die mounting base; 613-Shearing block; 62-Bending moving die; 621-Moving module; 6 22-Moving mold mounting base; 623-Moving mold cylinder; 63-Pre-compression block; 631-Spring; 70-Blocking mechanism; 71-Blocking plate; 711-Blocking arm; 72-Blocking cylinder; 73-Clamping pin; 731-Flange section; 74-Pin seat; 75-Compression spring; 76-Linkage plate; 81-Bending angle detection device; 82-Rejection mechanism; 90-IGBT electronic component; 91-Base section; 92-Terminal. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] like Figure 1 , 2 As shown, the IGBT electronic component 90 includes a base portion 91 and a plurality of terminals 92 extending downward from the base portion. To realize the application of the IGBT electronic component in a specific product, it is necessary to connect the terminals of the IGBT electronic component from... Figure 1 Bending to Figure 2 state.

[0043] like Figure 3-8 As shown, an adjustable angle terminal bending device for IGBT electronic components includes:

[0044] The base 10 has an inclined mounting surface 11;

[0045] The rotatable support assembly 20 includes a support base 21, a turntable 22 and a locking mechanism 23. The support base 21 is mounted on the inclined mounting surface 11 of the base 10, the turntable 22 is rotatably mounted on the support base 21, and the locking mechanism 23 is used to lock the position of the turntable after the turntable 22 rotates to a set angle.

[0046] IGBT tube 30, in which IGBT electronic components 90 are arranged sequentially along the length direction. The width of the IGBT tube 30 is slightly greater than the thickness of the IGBT electronic component base 91, and the height of the IGBT tube 30 is slightly greater than the total height of the IGBT electronic component base 91 and the terminal 92.

[0047] The feed channel tube 40 is mounted on the turntable 22 of the rotatable support assembly. The width of the cavity of the feed channel tube 40 is the same as the width of the cavity of the IGBT feed tube 30. The height of the cavity of the feed channel tube 40 is slightly greater than the height of the IGBT electronic component base 91. The bottom surface of the feed channel tube 40 is provided with a lower opening slot, through which the terminal 92 of the IGBT electronic component passes.

[0048] A connecting transition block 50 is connected between the IGBT material tube 30 and the guide tube 40. Under the action of gravity, the IGBT electronic components 90 in the IGBT material tube 30 enter the guide tube 40 in sequence through the connecting transition block 50.

[0049] The bending module 60 is mounted on the inclined mounting surface 11 of the base 10. The bending module 60 includes a fixed bending die 61 and a moving bending die 62, which are located on both sides below the guide channel tube 40.

[0050] The material blocking mechanism 70 is used to control the forward movement and stopping of the IGBT electronic components in the material guide tube 40.

[0051] The advantages of adopting the above technical solution are as follows: The IGBT tubing, as the incoming packaging for IGBT electronic components, directly connects to the feed trough via a connecting transition block, making material supply direct and convenient. The inclined feed trough design utilizes gravity to automatically feed the IGBT electronic components, simplifying the structural design. The feed trough's angle is adjustable via a rotatable support assembly, allowing for adjustment of the initial angle of the IGBT electronic component terminals relative to the bending module, thereby enabling rapid adjustment of the bending angle and ensuring the accuracy of the IGBT electronic component terminal bending angle.

[0052] In other embodiments of the present invention, the structure of the locking mechanism 23 is not limited and can be selected from the prior art, such as using a top bolt for manual locking and unlocking; in order to achieve the need for intelligent operation, an electric locking method can also be used, in which a locking motor drives the top bolt to rotate to achieve locking and unlocking, and a torque sensor can also be connected between the locking motor and the top bolt to achieve the purpose of controlling the locking force.

[0053] like Figure 3 As shown, in some other embodiments of the present invention, a bending angle detection device 81 is provided downstream of the bending module 60. The bending angle detection device 81 is used to detect the terminal angle of the IGBT electronic component after bending. The beneficial effect of adopting the above technical solution is that an alarm prompting device can be optionally set to promptly remind the user when a defective product is detected, and adjust the angle of the guide trough tube in a timely manner.

[0054] like Figure 3As shown, in some other embodiments of the present invention, a rejection mechanism 82 for rejecting defective products is further provided at the end of the feed trough 40. The beneficial effect of adopting the above technical solution is that defective products can be rejected in a timely manner, processed separately, and mixed materials can be prevented.

[0055] In other embodiments of the present invention, the rotatable support assembly 20 further includes a rotary drive mechanism and a turntable angle detection device. The rotary drive mechanism drives the turntable to rotate, and the turntable angle detection device detects the angle between the turntable and the guide trough tube. After the bending angle detection device detects that the terminal angle exceeds the specification, the rotary drive mechanism drives the turntable and the guide trough tube to rotate by a correction angle. The beneficial effect of adopting the above technical solution is that it can automatically realize the adjustment of the bending angle and improve the level of intelligence.

[0056] like Figure 3 , 6 As shown, in some other embodiments of the present invention, the bending fixed die 61 includes a fixed module 611 and a fixed die mounting base 612. The fixed die mounting base 612 is fixedly mounted on the inclined mounting surface 11 of the base, and the fixed module 611 is fixedly mounted on the fixed die mounting base 612. The bending moving die 62 includes a moving module 621, a moving die mounting base 622 and a moving die cylinder 623. The moving die mounting base 622 is fixedly mounted on the inclined mounting surface 11 of the base, and the moving module 621 is slidably mounted on the moving die mounting base 622. The moving die cylinder 623 drives the moving module 621 to reciprocate. In the left-right direction, the fixed module 611 and the moving module 621 are arranged opposite to each other. In the height direction, the upper surface of the moving module 621 is lower than the lower surface of the fixed module 611.

[0057] like Figure 6 As shown, in some other embodiments of the present invention, a pre-pressure block 63 is connected above the moving module 621 via a spring 631. The beneficial effect of adopting the above technical solution is that the pre-pressure block pre-presses the terminals of the IGBT electronic components, ensuring that the terminals remain in a stable position when the moving module and the stationary module are bent.

[0058] like Figure 6 As shown, in some other embodiments of the present invention, the end face of the moving module 621 is an inclined plane, the angle between the inclined plane and the upper surface is an obtuse angle, and the angle between the inclined plane and the lower surface is an acute angle; the fixed mold mounting base 612 is also provided with a shearing block 613, and in the height direction, the height of the upper surface of the shearing block 613 is slightly lower than the height of the bottom surface of the moving module 621; during bending, the moving module 621 first cooperates with the shearing block 613 to cut the IGBT electronic component terminal, and then cooperates with the fixed module 611 to bend the cut terminal. The beneficial effect of adopting the above technical solution is that it can realize the cutting of the excessively long part of the terminal first, and then bending, forming the terminal in one step.

[0059] like Figure 7 , 8 As shown, in some other embodiments of the present invention, the material blocking mechanism 70 includes a material blocking plate 71, a material blocking cylinder 72, a clamping pin 73, a pin seat 74, a compression spring 75, and a linkage plate 76. The material blocking cylinder 72 drives the material blocking plate 71 to reciprocate. The guide channel pipe 40 is provided with a material blocking section groove 41 parallel to its cross-section at a downstream position of the bending module. The clamping pin 73 is movably mounted on the pin seat 74. The clamping pin 73 has a flange portion 731 in the middle. The compression spring 75 is located between the flange portion 731 and the pin seat 74. The side of the guide channel pipe 40 is provided for the clamping pin 73 to pass through. The through hole connects the linkage plate 76 to the clamping pin 73. When the baffle cylinder 72 drives the baffle plate 71 to the baffle position, the baffle arm 711 of the baffle plate 71 passes through the baffle section groove 41 of the guide channel tube. The baffle plate 71 also presses against the linkage plate 76 and drives the clamping pin 73 to disengage from the IGBT electronic component in the guide channel tube. When the baffle cylinder 72 drives the baffle plate 71 to retract and release the baffle position, the baffle plate 71 disengages from the linkage plate 76. Under the action of the compression spring 75, the clamping pin 73 passes through the through hole of the guide channel tube 40 and presses against the side of the IGBT electronic component base. The distance between the baffle arm 711 of the baffle plate 71 and the clamping pin 73 is greater than 1 times the width of the IGBT electronic component base and less than 2 times the width of the IGBT electronic component base. The beneficial effects of adopting the above technical solution are: it can bend the unbent product after blocking it, and the bent product will automatically move downwards, realizing continuous bending of the IGBT electronic component terminals.

[0060] In other embodiments of the present invention, an indicator scale for indicating the angular position of the turntable is provided between the support base 21 and the turntable 22. The advantages of adopting the above technical solution are: it more intuitively displays angle data and facilitates manual adjustment.

[0061] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An adjustable-angle terminal bending device for IGBT electronic components, used to bend the terminals of IGBT electronic components, wherein the IGBT electronic component includes a base and a plurality of terminals extending downward from the base, characterized in that, include: The base has an inclined mounting surface; A rotatable support assembly includes a support base, a turntable, and a locking mechanism. The support base is mounted on an inclined mounting surface of the base, the turntable is rotatably mounted on the support base, and the locking mechanism is used to lock the turntable after it rotates to a set angle. An IGBT tube has IGBT electronic components arranged sequentially along its length inside its cavity. The width of the IGBT tube cavity is slightly greater than the thickness of the IGBT electronic component substrate, and the height of the IGBT tube cavity is slightly greater than the total height of the IGBT electronic component substrate and terminals. A feed channel tube is installed on the turntable of the rotatable support assembly. The width of the cavity of the feed channel tube is the same as the width of the IGBT feed tube. The height of the cavity of the feed channel tube is slightly greater than the height of the IGBT electronic component base. The bottom surface of the feed channel tube is provided with a lower opening slot, through which the terminals of the IGBT electronic component pass. A connecting transition block is used to connect the IGBT tube and the guide trough tube. Under the action of gravity, the IGBT electronic components in the IGBT tube enter the guide trough tube sequentially through the connecting transition block. A bending module is mounted on the inclined mounting surface of the base. The bending module includes a fixed bending die and a moving bending die, which are located on both sides below the guide trough tube. The material blocking mechanism is used to control the forward movement and stopping of IGBT electronic components in the material guide tube.

2. The IGBT electronic component adjustable angle terminal bending device according to claim 1, characterized in that, A bending angle detection device is provided downstream of the bending module. The bending angle detection device is used to detect the terminal angle of the IGBT electronic component after bending.

3. The IGBT electronic component adjustable angle terminal bending device according to claim 2, characterized in that, At the end of the feed trough, there is also a rejection mechanism for rejecting defective products.

4. The IGBT electronic component adjustable angle terminal bending device according to claim 3, characterized in that, The rotatable support assembly also includes a rotary drive mechanism and a turntable angle detection device. The rotary drive mechanism is used to drive the turntable to rotate, and the turntable angle detection device is used to detect the angle between the turntable and the guide tube. After the bending angle detection device detects that the terminal angle exceeds the specification, the rotary drive mechanism drives the turntable and the guide tube to rotate by a correction angle.

5. The IGBT electronic component adjustable angle terminal bending device according to claim 1, characterized in that, The bending fixed die includes a fixed module and a fixed die mounting base. The fixed die mounting base is fixedly mounted on the inclined mounting surface of the base, and the fixed module is fixedly mounted on the fixed die mounting base. The bending moving die includes a moving module, a moving die mounting base, and a moving die cylinder. The moving die mounting base is fixedly mounted on the inclined mounting surface of the base, and the moving module is slidably mounted on the moving die mounting base. The moving die cylinder drives the moving module to reciprocate. In the left-right direction, the fixed module and the moving module are arranged opposite each other. In the height direction, the upper surface of the moving module is lower than the lower surface of the fixed module.

6. The IGBT electronic component adjustable angle terminal bending device according to claim 5, characterized in that, A preload block is connected to the top of the moving module via a spring.

7. The IGBT electronic component adjustable angle terminal bending device according to claim 6, characterized in that, The end face of the moving module is an inclined plane, the angle between the inclined plane and the upper surface is an obtuse angle, and the angle between the inclined plane and the lower surface is an acute angle. The fixed mold mounting base is also provided with a shearing block. In the height direction, the height of the upper surface of the shearing block is slightly lower than the height of the bottom surface of the moving module. When bending, the moving module first cooperates with the shearing block to cut the IGBT electronic component terminals, and then cooperates with the fixed module to bend the cut terminals.

8. The IGBT electronic component adjustable angle terminal bending device according to claim 1, characterized in that, The material blocking mechanism includes a material blocking plate, a material blocking cylinder, a clamping pin, a pin seat, a compression spring, and a linkage plate. The material blocking cylinder drives the material blocking plate to reciprocate. The material guide tube is located downstream of the bending module and has a material blocking section groove parallel to its cross-section. The clamping pin is movably mounted on the pin seat and has a flange portion in the middle. The compression spring is located between the flange portion and the pin seat. The side of the material guide tube has a through hole for the clamping pin to pass through. The linkage plate is connected to the clamping pin. When the material blocking cylinder drives the material blocking plate to the material blocking position, the material blocking arm of the material blocking plate passes through the material blocking section groove of the material guide tube. The material blocking plate also presses against the linkage plate and drives the clamping pin to disengage from the IGBT electronic component of the material guide tube. When the material blocking cylinder drives the material blocking plate to retract and release the material blocking state, the material blocking plate disengages from the linkage plate. Under the action of the compression spring, the clamping pin passes through the through hole of the material guide tube and presses against the side of the IGBT electronic component base.

9. The IGBT electronic component adjustable angle terminal bending device according to claim 8, characterized in that, The distance between the baffle arm and the clamping pin of the baffle plate is greater than 1 times the width of the IGBT electronic component base and less than 2 times the width of the IGBT electronic component base.

10. The IGBT electronic component adjustable angle terminal bending device according to claim 1, characterized in that, An indicator scale for indicating the angular position of the turntable is provided between the support base and the turntable.

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