IGBT code spraying device

Abstract

The utility model provides an IGBT code spraying device, and the device comprises a guide rail which is used for bearing a plurality of cut and bent IGBT finished products; the bracket is arranged beside the guide rail; the driving mechanism is arranged on the support, the connecting frame is connected with the driving mechanism, and the driving mechanism is used for driving the connecting frame to do linear reciprocating motion relative to the support; and the nozzle is fixed on the connecting frame and is positioned right above the guide rail, and the nozzle is configured to sequentially spray codes on the pins of the IGBT finished products positioned on the guide rail when the mechanism connecting frame is driven to move. According to the IGBT code spraying device provided by the invention, the nozzle is arranged on the connecting frame, and when the driving mechanism drives the connecting frame to move back and forth, the nozzle can perform code spraying on pins of IGBT finished products on the guide rail in sequence, so that wrong models can be prevented, source tracing is facilitated, and subsequent inspection of the models of the finished products by visual inspection equipment is facilitated; and explosion caused by the fact that IGBTs of different models are installed on products is avoided, and the safety of the corresponding products is improved.

Description

Technical Field

[0001] This application belongs to the technical field of IGBT processing equipment, and more specifically, relates to an IGBT inkjet printing device. Background Technology

[0002] Insulated Gate Bipolar Transistor (IGBT) is a semiconductor device widely used in power electronics. Existing IGBT processing equipment completes the processing by cutting and bending the leads of the IGBT raw material, and then collects the finished product. However, IGBTs come in various models, and after processing, they need to be inspected before they can be assembled into corresponding electronic products. If different models of IGBTs are installed in electronic products, it is easy for the device to explode, and the safety of the product cannot be guaranteed. Utility Model Content

[0003] The purpose of this application is to provide an IGBT inkjet marking device that can simultaneously mark the pins of multiple IGBT finished products.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide an IGBT inkjet printing device, comprising:

[0005] The guide rail is used to support multiple finished IGBTs after cutting and bending.

[0006] A bracket is located beside the guide rail;

[0007] A connecting frame and a driving mechanism disposed on the support, wherein the connecting frame is connected to the driving mechanism and the driving mechanism is used to drive the connecting frame to perform linear reciprocating movement relative to the support;

[0008] The nozzle is fixed on the connecting frame and located directly above the guide rail. The nozzle is configured to sequentially print codes on the pins of each IGBT finished product located on the guide rail when the connecting frame is moved by the drive mechanism.

[0009] In one embodiment, the driving mechanism includes a drive motor, a slider, a lead screw, and a fixed base. The drive motor is fixed to one end of the fixed base, both ends of the lead screw are rotatably mounted on the fixed base, the slider is screwed onto the lead screw, the output end of the drive motor is connected to one end of the lead screw, and one side of the connecting frame is connected and fixed to the slider.

[0010] In one embodiment, the fixed base has a receiving groove for accommodating the lead screw, and two parallel protrusions are provided on one side wall of the receiving groove. The upper and lower ends of the slider are respectively provided with guide structures that cooperate with the protrusions on both sides. The protrusions are provided with inclined surfaces, and inclined clamps are provided on the upper and lower end surfaces of the slider. One side of the clamp is slidably abutted against the inclined surface of the corresponding side protrusion.

[0011] In one embodiment, the drive mechanism is equipped with a sensor for detecting the sliding position of the slider.

[0012] In one embodiment, the driving mechanism is a linear motor, which includes a fixed base, a stator disposed on the fixed base, a mover located above the stator and movable relative to the stator, and a driver for controlling the operation of the mover; one side of the connecting frame is connected and fixed to the mover.

[0013] In one embodiment, the connecting frame is L-shaped and includes a first plate and a second plate connected at right angles. The first plate is vertically arranged and one side is connected to the driving mechanism, while the second plate is horizontally arranged, and the nozzle is fixed to one end of the second plate.

[0014] In one embodiment, a reinforcing plate is connected between the first plate and the second plate.

[0015] In one embodiment, the second plate has a mounting hole at its end for the nozzle to pass through, the second plate has a first gap on one side of the mounting hole, and the second plate is provided with a locking member, the width of the first gap can be adjusted by the locking member so that the height position of the nozzle is adjustable.

[0016] In one embodiment, the bracket includes a fixed rod vertically fixed to the frame and a mounting bracket connected to the fixed rod. The height of the mounting bracket on the fixed rod is adjustable, and the drive mechanism is disposed on the mounting bracket.

[0017] In one embodiment, the mounting bracket includes a fixed plate and a T-shaped block connected to one side of the fixed plate. The driving mechanism is connected to the other side of the fixed plate. The head of the T-shaped block has a through hole for the fixing rod to pass through. The end of the head of the T-shaped block away from the fixed plate has a second gap. The head of the T-shaped block is connected to a screw, and the width of the second gap can be adjusted by the screw to make the height position of the T-shaped block adjustable.

[0018] The beneficial effects of the IGBT inkjet printing device provided in this application are as follows: Compared with the prior art, the IGBT inkjet printing device of this application has a nozzle set on the connecting frame, and the nozzle is located directly above the guide rail. When the drive mechanism drives the connecting frame to move back and forth, the nozzle can sequentially print the pins of each IGBT finished product located on the guide rail. This can prevent the use of the wrong model, and the printing on the pins facilitates traceability. It also facilitates the subsequent visual inspection equipment to inspect the model of the finished product, avoids the explosion caused by installing IGBTs of different models in the product, and improves the safety of the corresponding product. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A 3D view of the finished IGBT placed on the guide rail;

[0021] Figure 2 A perspective view of the IGBT inkjet printing device provided in the embodiments of this application;

[0022] Figure 3 for Figure 2 A three-dimensional view of the IGBT inkjet printer from another angle.

[0023] Figure 4 for Figure 2 The cutaway view of the IGBT inkjet printing device shown.

[0024] The following are the labeling elements in the figure:

[0025] 1-Frame; 2-IGBT finished product; 10-Guide rail; 20-Bracket; 30-Drive mechanism; 40-Connecting frame; 50-Nozzle; 21-Fixing rod; 22-Mounting bracket; 220-Fixing plate; 221-T-block; 222-Second gap; 31-Drive motor; 32-Slider; 33-Lead screw; 34-Fixing seat; 35-Reducer; 36-Sensor; 320-Clamping plate; 340-Accommodation groove; 341-Protrusion; 342-Ceiling; 41-First plate; 42-Second plate; 43-Reinforcing plate; 420-First gap. Detailed Implementation

[0026] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0028] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0030] Please refer to the following: Figures 1 to 3 The IGBT inkjet printing device provided in this application embodiment will now be described. The IGBT inkjet printing device is mounted on a frame 1 and includes a guide rail 10, a bracket 20, a drive mechanism 30, a connecting frame 40, and a nozzle 50. The guide rail 10 is horizontally fixed to the frame 1 and is used to support multiple finished IGBT products 2 after cutting and bending. One end of the guide rail 10 forms an inkjet printing station, upstream of which there are a lead-cutting station and a bending station. After the IGBT raw material has been cut and bent, it moves to the inkjet printing station. The bracket 20 is located beside the guide rail 10, and the bottom end of the bracket 20 is fixed to the frame 1.

[0031] A drive mechanism 30 is mounted on a bracket 20, and a connecting frame 40 is connected to the drive mechanism 30. The drive mechanism 30 provides driving force to drive the connecting frame 40 to move linearly back and forth relative to the bracket 20, i.e., the connecting frame 40 can move back and forth in the horizontal direction, parallel to the length direction of the guide rail 10. A nozzle 50 is fixed to the connecting frame 40 and is located directly above the guide rail 10. The nozzle 50 is configured to sequentially print the pins of each IGBT finished product 2 located on the guide rail 10 when the drive mechanism 30 drives the connecting frame 40 to move. A sensor can be provided at the bottom of the guide rail 10 to detect whether an IGBT finished product 2 is placed on the guide rail. After detection, a control signal is sent to the drive mechanism to drive the connecting frame 40 to move, which in turn drives the nozzle 50 to move for the spraying operation.

[0032] In this embodiment, 10 finished IGBT products 2, after being cut and bent, are placed on the guide rail 10. Each IGBT product 2 has three pins, a portion of which is bent at a 90-degree angle and located on the side of the guide rail 10, while the other portion of the pin is located above the guide rail 10 to form an area for the nozzle 50 to spray. The nozzle 50 can sequentially perform a coding operation on the 10 finished IGBT products 2, spraying numbers, patterns, letters, or symbols on each pin of the IGBT product 2. Different numbers can be sprayed on each pin of the IGBT product 2; or numbers in a certain pattern can be sprayed, such as spraying the number 0 on the gate pin of the IGBT product 2, and spraying the number 1 on the collector and emitter pins respectively; when processing another type of IGBT, other numbers can be sprayed on each pin to distinguish different types of IGBTs.

[0033] Compared with the prior art, the IGBT marking device provided in this application has a nozzle 50 set on the connecting frame 40, and the nozzle 50 is located directly above the guide rail 10. When the driving mechanism 30 drives the connecting frame 40 to move back and forth, the nozzle 50 can sequentially mark the pins of each IGBT finished product 2 located on the guide rail 10. This can prevent the use of the wrong model, and marking on the pins facilitates traceability and makes it easier for subsequent visual inspection equipment to inspect the finished product model. It also avoids the explosion caused by installing IGBTs of different models in the product, thus improving the safety of the corresponding product.

[0034] See Figures 2 to 4The drive mechanism 30 includes a drive motor 31, a slider 32, a lead screw 33, and a fixed base 34. The fixed base 34 has a hollow structure and an internal receiving groove 340. The drive motor 31 is fixed to one end of the fixed base 34, and both ends of the lead screw 33 are rotatably mounted on the fixed base 34. The lead screw 33 is located in the receiving groove 340 of the fixed base 34, and both ends of the lead screw 33 are rotatably mounted on the fixed base 34 via bearings. The slider 32 is screwed onto the lead screw 33. The axis of the lead screw 33 is parallel to the extension direction of the guide rail 10. When the lead screw 33 rotates, it can drive the slider 32 to move linearly. The output end of the drive motor 31 is connected to one end of the lead screw 33, and one side of the connecting frame 40 is connected and fixed to the slider 32.

[0035] The upper and lower ends of the slider 32 extend from the fixed base 34 and are connected and fixed to the connecting frame 40 by screws. The slider 32 is driven by the lead screw 33 to move back and forth in the horizontal direction, thereby driving the connecting frame 40 and the nozzle 50 to perform linear reciprocating motion together. In this way, the nozzle 50 can spray the IGBT finished products 2 on the guide rail 10 sequentially. A reducer 35 is also provided between the drive motor 31 and the lead screw 33. The drive motor 31 is located directly below the fixed base 34, and the reducer 35 is located at one end of the fixed base 34.

[0036] See Figures 2 to 4 The fixed base 34 has a receiving groove 340 for accommodating the lead screw 33. Two parallel protrusions 341 are provided on one side wall of the receiving groove 340. Guide structures are provided between the upper and lower ends of the slider 32 and the protrusions 341 on both sides for cooperation. The slider 32 has a guide portion that extends between the two protrusions 341. The guide structure specifically includes a slide bar protruding from the upper and lower end faces of the guide portion of the slider 32, and a sliding groove provided on the opposite faces of the two protrusions 341. The slide bar and the sliding groove slide in cooperation, thus achieving a sliding cooperation between the slider 32 and the fixed base 34. The protrusions 341 are provided with inclined surfaces 342. Inclined clamping plates 320 are provided on the upper and lower end faces of the slider 32. One side of the clamping plate 320 slidably abuts against the inclined surface 342 of the corresponding protrusion 341. The inclined surface 342 is an arc-shaped surface, and the clamping part of the clamping protrusion 341 is formed between the clamping plate 320 and the slider. In this way, the slider 32 is not easy to wobble back and forth when sliding, and can slide back and forth stably relative to the fixed seat 34.

[0037] See Figure 2 The drive mechanism 30 is equipped with a sensor 36 for detecting the sliding position of the slider 32. Multiple sensors 36 can be provided, and the mounting base 34 can be equipped with mounting brackets for mounting multiple sensors 36. Understandably, the sensor 36 can also be a linear encoder, which allows for precise sensing of the current position of the slider 32.

[0038] Understandably, the drive mechanism 30 can also be a linear motor. The linear motor includes a fixed base, a stator, a mover, and a driver. The fixed base is fixed to the bracket 20, the stator is mounted on the fixed base, the mover is positioned above the stator and moves relative to it, the driver controls the movement of the mover, and one side of the connecting frame is connected and fixed to the mover. Specifically, the stator includes multiple interconnectable U-shaped slots arranged linearly, and permanent magnets with alternating N and S poles arranged symmetrically on both inner sides of the U-shaped slots. The mover includes a housing with long slots and coreless three-phase windings arranged within the long slots; the housing is made of a non-magnetic material. One or both sides of the stator are provided with auxiliary guide rails to assist the mover's sliding motion. The auxiliary guide rails are equipped with grating rulers, and the fixed base is equipped with an encoder reading head that works with the grating rulers. The controller is connected to the mover via a cable, and one side of the fixed base is equipped with a drag chain to drive the cable. The connecting frame is driven by a double-sided moving coil linear motor, which can stably, quickly and accurately drive the connecting frame to move back and forth, with low energy consumption, high precision and good repeatability.

[0039] Please see Figure 2 The connecting frame 40 is L-shaped and includes a first plate 41 and a second plate 42 connected at right angles. The second plate 42 is connected to the bottom end of the first plate 41. The first plate 41 is vertically arranged and connected to the drive mechanism 30 on one side. The second plate 42 is horizontally arranged, and the extension direction of the second plate 42 is perpendicular to the length direction of the guide rail 10. The nozzle 50 is fixed to one end of the second plate 42.

[0040] See Figure 2 and Figure 4 A reinforcing plate 43 connects the first plate 41 and the second plate 42. By setting the reinforcing plate 43, the overall structural strength of the connecting frame 40 can be improved, making it suitable for long-term use. One end of the reinforcing plate 43 is connected to the first plate 41, and the other end of the reinforcing plate 43 is connected to the second plate 42. In this embodiment, the reinforcing plate 43 is set at the corner connection between the first plate 41 and the second plate 42, and there are no gaps between the reinforcing plate 43 and the two plates.

[0041] See Figure 2 The second plate 42 has a mounting hole at one end for the nozzle 50 to pass through. The second plate 42 has a first gap 420 on one side of the mounting hole. A locking element is provided on the second plate 42, which allows adjustment of the width of the first gap 420 to adjust the height of the nozzle 50. By providing the first gap 420 and the locking element on the second plate 42, one end of the nozzle 50 can be clamped and released. The locking element specifically includes two screws; tightening the screws locks the nozzle 50 onto the second plate 42.

[0042] See Figure 2 and Figure 3The bracket 20 includes a fixed rod 21 and a mounting bracket 22. The fixed rod 21 is vertically fixed to the frame 1, and the mounting bracket 22 is connected to the fixed rod 21. The height of the mounting bracket 22 on the fixed rod 21 is adjustable. The drive mechanism 30 is disposed on the mounting bracket 22, and the drive mechanism 30 and the fixed rod 21 are located on opposite sides of the mounting bracket 22.

[0043] See Figure 3 The mounting bracket 22 includes a fixing plate 220 and a T-shaped block 221 connected to one side of the fixing plate 220. The drive mechanism 30 is connected to the other side of the fixing plate 220. Specifically, the fixing plate 220 is fixed to the fixing seat 34 by screws. The head of the T-shaped block 221 has a through hole for the fixing rod 21 to pass through. The end of the head of the T-shaped block 221 away from the fixing plate 220 has a second gap 222. The head of the T-shaped block 221 is connected to a screw, and the width of the second gap 222 can be adjusted by the screw to make the height position of the T-shaped block 221 adjustable. By setting the second gap 222, the height position of the T-shaped block 221 can be adjusted up and down when the screw is loosened, thereby adjusting the height position of the nozzle 50 and the drive mechanism 30. When the screw is tightened, the T-shaped block 221 is locked to the fixing rod 21.

[0044] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An IGBT inkjet printing device, characterized in that: include: The guide rail is used to support multiple finished IGBT products after cutting and bending. A bracket is located beside the guide rail; A connecting frame and a driving mechanism disposed on the support, wherein the connecting frame is connected to the driving mechanism and the driving mechanism is used to drive the connecting frame to perform linear reciprocating movement relative to the support; The nozzle is fixed on the connecting frame and located directly above the guide rail. The nozzle is configured to sequentially print codes on the pins of each IGBT finished product located on the guide rail when the connecting frame is moved by the drive mechanism.

2. The IGBT inkjet printing device as described in claim 1, characterized in that: The driving mechanism includes a drive motor, a slider, a lead screw, and a fixed base. The drive motor is fixed to one end of the fixed base, and both ends of the lead screw are rotatably mounted on the fixed base. The slider is screwed onto the lead screw, the output end of the drive motor is connected to one end of the lead screw, and one side of the connecting frame is connected and fixed to the slider.

3. The IGBT inkjet printing device as described in claim 2, characterized in that: The fixed base has a receiving groove for receiving the lead screw. Two parallel protrusions are provided on one side wall of the receiving groove. The upper and lower ends of the slider are respectively provided with guide structures that cooperate with the protrusions on both sides. The protrusions are provided with inclined surfaces. Inclined clamps are provided on the upper and lower end surfaces of the slider. One side of the clamp is slidably abutted against the inclined surface of the corresponding protrusion.

4. The IGBT inkjet printing device as described in claim 2, characterized in that: The drive mechanism is equipped with a sensor for detecting the sliding position of the slider.

5. The IGBT inkjet printing device as described in claim 1, characterized in that: The driving mechanism is a linear motor, which includes a fixed base, a stator disposed on the fixed base, a mover located above the stator and movable relative to the stator, and a driver for controlling the operation of the mover; one side of the connecting frame is connected and fixed to the mover.

6. The IGBT inkjet printing device according to any one of claims 1-5, characterized in that: The connecting frame is L-shaped and includes a first plate and a second plate connected at right angles. The first plate is vertically arranged and connected to the driving mechanism on one side. The second plate is horizontally arranged, and the nozzle is fixed to one end of the second plate.

7. The IGBT inkjet printing device as described in claim 6, characterized in that: A reinforcing plate connects the first plate and the second plate.

8. The IGBT inkjet printing device as described in claim 6, characterized in that: The second plate has a mounting hole at its end for the nozzle to pass through. The second plate has a first gap on one side of the mounting hole. The second plate is provided with a locking member, which can be used to adjust the width of the first gap so that the height position of the nozzle is adjustable.

9. The IGBT inkjet printing device according to any one of claims 1-5, characterized in that: The bracket includes a fixed rod vertically fixed to the frame and a mounting bracket connected to the fixed rod. The height of the mounting bracket on the fixed rod is adjustable, and the drive mechanism is disposed on the mounting bracket.

10. The IGBT inkjet printing device as described in claim 9, characterized in that: The mounting bracket includes a fixed plate and a T-shaped block connected to one side of the fixed plate. The driving mechanism is connected to the other side of the fixed plate. The head of the T-shaped block has a through hole for the fixing rod to pass through. The end of the head of the T-shaped block away from the fixed plate has a second gap. The head of the T-shaped block is connected to a screw, and the width of the second gap can be adjusted by the screw so that the height of the T-shaped block is adjustable.

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