A film capacitor cylindrical core welding apparatus

Abstract

The utility model relates to electronic component manufacturing technical field, concretely is a kind of thin film capacitor cylindrical core welding equipment, including welding production line, the top of leftmost of welding production line is provided with the vibrating disc for the directional arrangement of cylindrical core, the utility model is automatically fed by vibrating disc and conveying track composition, realizes the continuous directional arrangement of core, solves artificial loading efficiency bottleneck;Clamping device passes through the synchronous counter-movement of the linear motion of adjustable cylinder by accurate transmission mechanism (L-shaped driving element linkage sliding block) conversion to the clamping jaw, ensure that core keeps stable clamping during handling process;The closed-loop production flow of welding parameter and blanking track of PLC control makes core from sequencing, positioning, welding to sorting whole process automation operation.Not only will single-piece operation upgrade as assembly line operation, more through the precise cooperation of mechanical structure, the speed and consistency of batch welding are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic component manufacturing technology, specifically to a welding device for cylindrical cores of thin-film capacitors. Background Technology

[0002] Film capacitors are widely used in electronics, power and other fields. Their internal core is usually cylindrical and the two ends need to be welded to the lead electrodes to complete the electrical connection.

[0003] Existing technology, such as the publication number "CN205542430U", discloses a cylindrical thin-film capacitor welding and wire-adding device, including a base and a main control box. The main control box is located on the base and contains a temperature control device and an automatic solder dispensing device. A cylinder bracket is provided on the front panel of the main control box, and a cylinder is fixed on the cylinder bracket. Guide rail brackets are also provided on both sides below the cylinder bracket, and vertical guide rails are fixed on the guide rail brackets. A connecting plate is fitted onto the vertical guide rails. The connecting plate is fixedly connected to the cylinder rod of the cylinder by a nut. A temperature control head and a solder dispensing head are installed on the connecting plate. The temperature control head and the solder dispensing head are connected to the temperature control device and the automatic solder dispensing device respectively via wires and hoses. A cup connecting rod is welded to the bottom of the connecting plate, and a cup is connected to the cup connecting rod. A fixture base is also provided on the base, and a capacitor fixture is placed inside the fixture base. A stepper motor is also provided at the bottom of the base. This device has a simple structure, high working efficiency, and is safe and convenient to use.

[0004] However, this welding equipment has the following problems: 1) It is not suitable for large-scale, rapid welding of cylindrical film capacitors; 2) The equipment places the cylindrical film capacitors on a fixture, lacking clamping, which leads to vibration affecting the welding accuracy during the welding process. Therefore, we propose a welding equipment for cylindrical cores of film capacitors. Utility Model Content

[0005] The purpose of this invention is to solve the problems of lack of batch processing and lack of clamping and fixing effect in the existing technology, and to provide a welding equipment for cylindrical cores of thin film capacitors.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A welding equipment for cylindrical cores of thin-film capacitors includes a welding production line. A vibratory feeder for orienting cylindrical cores is located at the top left of the welding production line. A conveyor rail is located near the top of the vibratory feeder. A PLC control core is located on the outer wall of the welding production line. A linear guide rail is located near the top of the conveyor rail. A clamping device is slidably mounted on the outer wall of the linear guide rail. A pressure welding device is located near the top of the linear guide rail. A feeding rail is located near the top of the pressure welding device. The clamping device includes an adjustable cylinder, which rotates and slides on the linear guide rail. The outer wall of the linear slide rail is equipped with an adjustable cylinder driven by a servo motor on the linear slide rail. A limit frame is fixedly installed on the outer wall of the adjustable cylinder near the conveying track. A cylinder rod is slidably installed at the output end of the adjustable cylinder. A drive module is provided at the other end of the cylinder rod. The drive module includes a first hinge shaft, an L-shaped drive component, and a second hinge shaft. The first hinge shaft is slidably installed on the inner wall of the middle end of the limit frame. The L-shaped drive component is rotatably installed on the outer wall of the first hinge shaft. The second hinge shaft is fixedly installed on the inner arc-shaped wall of the limit frame near the L-shaped drive component. A slider is rotatably installed at the other end of the drive module. A gripper is fixedly installed on the outer wall of the slider.

[0008] Preferably, the clamping device further includes a fixing plate, a connecting rod, a mounting plate, a connecting rod, a pressing plate, an airbag, an air tube, and a clamping bladder. The fixing plate is fixedly installed at the middle of the inner wall of the limiting frame. The connecting rod is fixedly installed on the outer wall of the fixing plate near the slider. The mounting plate is fixedly installed at the other end of the connecting rod. The connecting rod is fixedly installed on the outer wall opposite to the slider. The pressing plate is fixedly installed at the other end of the connecting rod. The airbag is fixedly installed on the outer wall of the mounting plate near the pressing plate. One end of the air tube is connected to the airbag, and the clamping bladder is connected to the other end of the air tube.

[0009] Preferably, the inner wall of the limiting frame is provided with a slide rail, and the slider is slidably installed on the inner wall of the slide rail of the limiting frame.

[0010] Preferably, the PLC control core is equipped with an HMI (Human Machine Interface) for real-time monitoring of equipment status, adjustment of welding temperature and pressure, display of alarm information and data records.

[0011] Preferably, the pressure welding equipment is equipped with a pressure sensor for real-time feedback of welding pressure, with a pressure range of N to N.

[0012] Preferably, the outer walls of the grippers are provided with mounting grooves, and the side of the bladder that is close to the trachea is fixedly mounted on the inner wall of the mounting groove of the grippers.

[0013] Preferably, the pressing plate contacts the outer wall of the airbag, and the outer wall of the clamping bag has a certain degree of flexibility.

[0014] By employing the above technical solution, this utility model provides a welding device for cylindrical cores of thin-film capacitors. It possesses at least the following beneficial effects:

[0015] (1) This utility model achieves continuous directional arrangement of cores through an automatic feeding system composed of a vibratory feeder and a conveyor track, solving the bottleneck of manual feeding efficiency. Secondly, the clamping device converts the linear motion of the adjustable cylinder into the synchronous opposing motion of the grippers through a precision transmission mechanism (L-shaped drive component linkage slider), ensuring that the cores are stably clamped during transportation. Finally, the welding parameters controlled by the PLC and the unloading track form a closed-loop production flow, enabling the cores to operate automatically from sorting, positioning, welding to sorting. This not only upgrades single-piece operation to assembly line operation, but also significantly improves the speed and consistency of batch welding through the precise coordination of the mechanical structure.

[0016] (2) By setting up the clamping bladder, when the clamping bladder is inflated, its outer flexible surface generates a relatively stable clamping force on the core under the effect of expansion. In addition, the inner wall of the clamp in the prior art is rigid clamping. Usually, the clamping force control of rigid clamping requires a pressure sensor. In this invention, a pressure sensor is required to detect the clamping force. The clamping bladder is used in conjunction with mechanical linkage to control the clamping force, thereby preventing the core damage caused by rigid clamping. This achieves a double improvement in clamping stability and operation efficiency. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0018] Figure 1 This is a front view schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a side view of the clamping device of this utility model;

[0020] Figure 3 This is a schematic diagram of the clamping device in Embodiment 1;

[0021] Figure 4 This is a cross-sectional schematic diagram of the clamping device in Embodiment 2.

[0022] In the diagram: 1. Welding production line; 11. Vibratory feeder; 2. Conveyor track; 3. PLC control core; 4. Linear slide rail; 5. Clamping device; 51. Adjustable cylinder; 52. Limit frame; 53. Cylinder rod; 54. Drive module; 541. Hinge shaft one; 542. L-shaped drive component; 543. Hinge shaft two; 55. Slider; 56. Gripper; 57. Fixing plate; 58. Connecting rod; 59. Mounting plate; 510. Connecting rod; 511. Pressing plate; 512. Airbag; 513. Air pipe; 514. Clamping bag body; 6. Pressure welding equipment; 7. Unloading track. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0024] A welding device for cylindrical cores of thin-film capacitors, such as Figures 1-3 As shown, the welding production line includes a welding production line 1. A vibratory feeder 11 for orienting cylindrical cores is located at the top left of the welding production line 1. A conveyor rail 2 is located near the top of the vibratory feeder 11. A PLC control core 3 is located on the outer wall of the welding production line 1. A linear slide rail 4 is located near the top of the conveyor rail 2. A clamping device 5 is slidably mounted on the outer wall of the linear slide rail 4. A pressure welding device 6 is located near the top of the linear slide rail 4. A feeding rail 7 is located near the top of the pressure welding device 6. The clamping device 5 includes an adjustable cylinder 51, which is rotatably and slidably mounted on the outer wall of the linear slide rail 4. The adjustable cylinder 51 is connected to the linear slide rail via the linear slide rail. The servo motor on the 4 is driven by the adjustable cylinder 51, which is fixedly installed with a limit frame 52 near the outer wall of the conveying track 2. The output end of the adjustable cylinder 51 is slidably installed with a cylinder rod 53. The other end of the cylinder rod 53 is provided with a drive module 54. The drive module 54 includes a first hinge shaft 541, an L-shaped drive component 542, and a second hinge shaft 543. The first hinge shaft 541 is slidably installed on the inner wall of the middle end of the limit frame 52. The L-shaped drive component 542 is rotatably installed on the outer wall of the first hinge shaft 541. The second hinge shaft 543 is fixedly installed on the inner wall of the limit frame 52 near the arc-shaped inner wall of the L-shaped drive component 542. The other end of the drive module 54 is rotatably installed with a slider 55. The outer wall of the slider 55 is fixedly installed with a gripper 56.

[0025] The inner wall of the limiting frame 52 is provided with a slide rail, and the slider 55 is slidably installed on the inner wall of the slide rail of the limiting frame 52.

[0026] The PLC control core 3 is equipped with an HMI (human-machine interface) for real-time monitoring of equipment status, adjustment of welding temperature and pressure, display of alarm information and data recording.

[0027] The pressure welding equipment 6 is equipped with a pressure sensor for real-time feedback of welding pressure, with a pressure range of 5N to 50N.

[0028] In use, the welding equipment for cylindrical cores of thin-film capacitors of this utility model uses a vibratory feeder 11 and a conveyor track 2 to arrange the bulk cylindrical capacitor cores. Gravity and a guiding structure ensure the cores are aligned and enter subsequent workstations. Operators can set parameters (such as welding temperature, pressure, and cycle time) via a PLC control core 3. The system includes fault alarms, real-time statistics, and data export modules. After the core passes visual recognition, it enters the clamping station. A servo motor on the linear guide rail 4 controls an adjustable cylinder 51 to slide downwards to the outer wall of the core. Activating the adjustable cylinder 51 causes its output end to drive the cylinder rod 53 to slide inwards. When the cylinder rod 53 moves, it drives the hinge shaft 541 to slide inward. The hinge shaft 541 drives the L-shaped drive 542 to rotate 10 degrees towards each other with the hinge shaft 543 as the center. The L-shaped drive 542, which rotates 10 degrees inward, drives the slider 55 mounted on it to slide a short distance on the inner wall of the groove of the limit frame 52. The sliders 55 on both sides slide towards each other, causing the grippers 56 to slide towards each other. After the grippers 56 hold the core, the servo motor rotates the adjustable cylinder 51. The adjustable cylinder 51 slides upward to the welding point, controlling the PLC control core 3. The pressure welding equipment 6 welds the core. After the welding is completed, the adjustable cylinder 51 takes in air, causing the core to fall off and be discharged into the unloading track 7. The automatic feeding system, consisting of a vibratory feeder 11 and a conveyor track 2, enables continuous directional arrangement of the cores, overcoming the efficiency bottleneck of manual feeding. Secondly, the clamping device 5, through a precise transmission mechanism (L-shaped drive component 542 linked to slider 55), converts the linear motion of the adjustable cylinder 51 into the synchronous opposing motion of the grippers 56, ensuring stable clamping of the cores during transport. Finally, the welding parameters controlled by the PLC and the unloading track 7 form a closed-loop production flow, automating the entire process from core sorting, positioning, welding to sorting. This not only upgrades single-piece operation to assembly line work but also significantly improves the speed and consistency of batch welding through precise coordination of the mechanical structure. Example

[0029] This embodiment, based on embodiment 1, specifically includes the following:

[0030] like Figure 4As shown, the clamping device 5 also includes a fixing plate 57, a connecting rod 58, a mounting plate 59, a connecting rod 510, a pressing plate 511, an airbag 512, an air tube 513, and a clamping bladder body 514. The fixing plate 57 is fixedly installed in the middle of the inner wall of the limiting frame 52. The connecting rod 58 is fixedly installed in the outer wall of the fixing plate 57 near the slider 55. The mounting plate 59 is fixedly installed in the other end of the connecting rod 58. The connecting rod 510 is fixedly installed in the outer wall opposite to the slider 55. The pressing plate 511 is fixedly installed in the other end of the connecting rod 510. The airbag 512 is fixedly installed in the outer wall of the mounting plate 59 near the pressing plate 511. One end of the air tube 513 is connected to the airbag 512, and the clamping bladder body 514 is connected to the other end of the air tube 513.

[0031] The outer walls of the grippers 56 are provided with mounting grooves, and the side of the clamping bag 514 near the trachea 513 is fixedly installed on the inner wall of the mounting groove of the grippers 56.

[0032] The pressing plate 511 contacts the outer wall of the airbag 512, and the outer wall of the clamping bag 514 has a certain degree of flexibility.

[0033] In use, the cylindrical core welding device for thin-film capacitors of this utility model works as follows: When the slider 55 slides inward, it drives the connecting rod 510 and the pressing plate 511 to slide in opposite directions. The pressing plate 511 squeezes the air bladder 512 inward, so that the air bladder 512 is subjected to static compression from the mounting plate 59 and dynamic compression from the pressing plate 511. The gas inside the air bladder 512 enters the clamping bladder 514 through the air pipe 513. The clamping bladder 514 expands outward, clamping the core between the grippers 56. The design of 514 allows the flexible outer surface of the clamping bladder to exert a relatively stable clamping force on the core after inflation. In contrast, existing clamps use rigid inner walls, which typically require pressure sensors to control the clamping force. This invention, however, uses a pressure sensor to detect the clamping force and uses the clamping bladder 514 in conjunction with mechanical linkage to control the clamping force, thereby preventing core damage caused by rigid clamping and achieving a dual improvement in clamping stability and operational efficiency.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding equipment for cylindrical cores of thin-film capacitors, comprising a welding production line (1), characterized in that: The welding production line (1) has a vibratory feeder (11) at the top left for orienting cylindrical cores. A conveyor rail (2) is located near the top of the vibratory feeder (11). A PLC control core (3) is located on the outer wall of the welding production line (1). A linear slide rail (4) is located near the top of the conveyor rail (2). A clamping device (5) is slidably mounted on the outer wall of the linear slide rail (4). A pressure welding device (6) is located near the top of the linear slide rail (4). A feeding rail (7) is located near the top of the pressure welding device (6). The clamping device (5) includes an adjustable cylinder (51). The adjustable cylinder (51) rotates and slides on the outer wall of the linear slide rail (4), and the adjustable cylinder (51) is servo-driven on the linear slide rail (4). The adjustable cylinder (51) is driven by a motor. A limit frame (52) is fixedly installed on the outer wall of the conveying track (2). A cylinder rod (53) is slidably installed on the output end of the adjustable cylinder (51). A drive module (54) is provided on the other end of the cylinder rod (53). The drive module (54) includes a hinge shaft one (541), an L-shaped drive member (542), and a hinge shaft two (543). The hinge shaft one (541) is slidably installed on the inner wall of the middle end of the limit frame (52). The L-shaped drive member (542) is rotatably installed on the outer wall of the hinge shaft one (541). The hinge shaft two (543) is fixedly installed on the inner wall of the limit frame (52) near the arc-shaped inner wall of the L-shaped drive member (542). A slider (55) is rotatably installed on the other end of the drive module (54). A gripper (56) is fixedly installed on the outer wall of the slider (55).

2. The welding equipment for cylindrical cores of thin-film capacitors according to claim 1, characterized in that: The clamping device (5) also includes a fixing plate (57), a connecting rod (58), a mounting plate (59), a connecting rod (510), a pressing plate (511), an airbag (512), an air tube (513), and a clamping bladder (514). The fixing plate (57) is fixedly installed at the middle of the inner wall of the limiting frame (52). The connecting rod (58) is fixedly installed on the outer wall of the fixing plate (57) near the slider (55). The mounting plate (59) is fixedly installed at the other end of the connecting rod (58). The connecting rod (510) is fixedly installed on the outer wall opposite to the slider (55). The pressing plate (511) is fixedly installed at the other end of the connecting rod (510). The airbag (512) is fixedly installed on the outer wall of the mounting plate (59) near the pressing plate (511). One end of the air tube (513) is connected to the airbag (512). The clamping bladder (514) is connected to the other end of the air tube (513).

3. The welding equipment for cylindrical cores of thin-film capacitors according to claim 1, characterized in that: The inner wall of the limiting frame (52) is provided with a slide rail, and the slider (55) is slidably installed on the inner wall of the slide rail of the limiting frame (52).

4. The welding equipment for cylindrical cores of thin-film capacitors according to claim 1, characterized in that: The PLC control core (3) is equipped with an HMI human-machine interface for real-time monitoring of equipment status, adjustment of welding temperature and pressure, display of alarm information and data records.

5. The welding equipment for cylindrical cores of thin-film capacitors according to claim 1, characterized in that: The pressure welding equipment (6) is equipped with a pressure sensor for real-time feedback of welding pressure, with a pressure range of 5N to 50N.

6. The welding equipment for cylindrical cores of thin-film capacitors according to claim 2, characterized in that: The outer walls of the grippers (56) are provided with mounting grooves, and the side of the clamping bladder (514) near the trachea (513) is fixedly installed on the inner wall of the mounting groove of the grippers (56).

7. The welding equipment for cylindrical cores of thin-film capacitors according to claim 2, characterized in that: The pressing plate (511) contacts the outer wall of the airbag (512), and the outer wall of the clamping bladder (514) has a certain degree of flexibility.

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