Welding and cutting device for thin-film capacitor

Abstract

The utility model relates to a welding and cutting device for a thin-film capacitor, which comprises a workbench provided with a feeding track, a lead conveying mechanism, a welding mechanism and a cutting mechanism; capacitors are conveyed on the feeding track one by one; the wire conveying mechanism is used for conveying wires to the two sides of the feeding track respectively; the welding mechanism comprises a first welding head and a second welding head, and the first welding head and the second welding head are arranged on the two sides of the feeding track side by side in a spaced mode and used for welding wires on the two sides to the two ends of the capacitor respectively; the cutting mechanism comprises two sets of pneumatic scissors which are arranged on the two sides of the feeding track respectively and deviate from the central axis of the welding mechanism. The staggered design of the welding mechanism and the cutting mechanism allows the welding mechanism and the cutting mechanism to be performed simultaneously, and production efficiency is improved; meanwhile, at least one capacitor is always kept in a welded state, the wire is automatically straightened and conveyed, and continuous production is ensured; double-point synchronous welding is achieved, and the welding quality is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of capacitor production, and particularly relates to a welding and cutting device for film capacitors. Background Art

[0002] In the production process of film capacitors, in order to increase the capacity of the capacitor, multiple capacitors are connected in parallel, and multiple capacitors are welded to the wires using a welding gun;

[0003] However, the existing capacitor autonomous welding and cutting devices have complex structures and have the following defects in the actual production process: 1. They are unable to pick up the wires autonomously and need to be picked up and welded manually or by configuring a robot after the wires are cut; 2. The welding quality is unstable, and there are problems such as welding misalignment, skewness, and instability; 3. A single capacitor requires multiple multi-point welding. Due to the uneven heat distribution applied by the welding gun head, the capacitor is easily deformed during the welding process, resulting in poor welding quality and low production efficiency. Technical personnel in this field urgently need to solve the above technical problems. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a welding and cutting device for film capacitors, which has automated production, high welding stability and good quality.

[0005] The utility model adopts the following technical solutions:

[0006] A welding and cutting device for film capacitors, comprising:

[0007] The workbench is equipped with a feeding track, a wire conveying mechanism, a welding mechanism and a cutting mechanism;

[0008] A feeding track on which capacitors are fed one by one;

[0009] A wire conveying mechanism, used for conveying wires to both sides of the feeding track respectively;

[0010] A welding mechanism, comprising a first welding head and a second welding head, wherein the first welding head and the second welding head are arranged side by side and spaced apart on both sides of the feeding track, and are used to weld the wires on both sides to the two ends of the capacitor respectively;

[0011] The cutting mechanism comprises two sets of pneumatic shears, which are respectively arranged on both sides of the feeding track and offset from the central axis of the welding mechanism.

[0012] In a preferred embodiment of the present invention, the welding mechanism further includes a synchronous driving unit for driving the first welding head and the second welding head to move toward or away from each other in a horizontal direction.

[0013] In a preferred embodiment of the present invention, the synchronous drive unit includes a first guide rail, a second guide rail, a cylinder and a connecting rod assembly, wherein the first welding head is slidably installed on the first guide rail, the second welding head is slidably installed on the second guide rail, the telescopic end of the cylinder is connected to the first welding head, and the connecting rod assembly is connected between the first welding head and the second welding head and drives them to move toward or away from each other synchronously.

[0014] In a preferred embodiment of the present invention, the connecting rod assembly includes a first connecting rod rotatably connected to the left side of the first welding head, a second connecting rod rotatably installed on the right side of the second welding head, and a third connecting rod rotatably connected to the first connecting rod and the second connecting rod from both end portions. The synchronous drive unit also includes a rotating shaft extending up and down and aligned with the central axis of the first welding head. The rotating shaft is rotatably installed on the workbench, and the third connecting rod is rotatably connected to the rotating shaft from the middle.

[0015] In a preferred embodiment of the present invention, the first welding head and the second welding head are both configured as parallel electrode double welding heads.

[0016] In a preferred embodiment of the present invention, the cutting mechanism is arranged on a side of the welding mechanism away from the wire conveying mechanism, and the offset between the cutting mechanism and the central axis of the welding mechanism is half of the capacitor width.

[0017] Beneficial effects:

[0018] The utility model discloses a device for welding and cutting film capacitors. The staggered design of the welding mechanism and the cutting mechanism allows both to be carried out simultaneously, thereby improving production efficiency. At the same time, at least one capacitor is always kept in a welded state, ensuring continuous production. The wire is automatically straightened and transported as the capacitor to which it is welded moves, thereby realizing automated production.

[0019] The utility model is a welding and cutting device for film capacitors. The welding mechanism adopts a mechanical linkage structure of a cylinder and a connecting rod assembly, so that the welding of the capacitor can be completed with high positioning accuracy. The double-point synchronous welding on both sides is completed, and the welding quality is good and the efficiency is high.

[0020] The utility model discloses a welding and cutting device for film capacitors, which has the advantages of ingenious design, automated production, high welding stability and good quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of a welding and cutting device for film capacitors according to the present invention;

[0022] Figure 2 This is a top view of a welding and cutting device for film capacitors according to the present invention;

[0023] Figure 3 This is a front view of a welding and cutting device for film capacitors according to the present invention;

[0024] Figure 4 It is a structural schematic diagram of the welding mechanism of the present invention.

[0025] In the figure: 1 workbench;

[0026] 2 feeding tracks;

[0027] 3-wire conveying mechanism, 31 wires;

[0028] 4 welding mechanism, 41 first welding head, 42 second welding head, 43 first guide rail, 44 second guide rail, 45 cylinder, 46 connecting rod assembly, 461 first connecting rod, 462 second connecting rod, 463 third connecting rod, 47 rotating shaft;

[0029] 5. Cutting mechanism;

[0030] 6 capacitors. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] like Figure 1-3 As shown, the utility model provides a welding and cutting device for film capacitors, comprising:

[0033] The workbench 1 is equipped with a feeding track 2, a wire conveying mechanism 3, a welding mechanism 4 and a cutting mechanism 5;

[0034] A feeding track 2 on which capacitors 6 are fed one by one;

[0035] The wire conveying mechanism 3 is used to convey the wires 31 to both sides of the feeding track 2;

[0036] The welding mechanism 4 includes a first welding head 41 and a second welding head 42. The first welding head 41 and the second welding head 42 are arranged side by side and spaced apart on both sides of the feeding track 2, and are used to weld the wires 31 on both sides to the two ends of the capacitor 6 respectively;

[0037] The cutting mechanism 5 comprises two sets of pneumatic shears, which are respectively arranged on both sides of the feeding track 2 and offset from the central axis of the welding mechanism 4;

[0038] The working principle and beneficial effects of the above embodiment are as follows:

[0039] During operation, the capacitors 6 are transported one by one along the feeding track 2 to the position of the welding mechanism 4. The wires 31 are arranged on both sides of the capacitor 6. The welding mechanism 4 welds the wires 31 on both sides to the two sides of the capacitor 6 respectively. When the number of welds reaches the set value of one group, the welding mechanism 4 welds the first capacitor 6 of the other group. At the same time, because the cutting mechanism 5 has a certain offset relative to the welding mechanism 4, the two sets of pneumatic scissors cut the wires 31 on both sides vertically upward respectively. The cut capacitors 6 of one group are automatically unloaded due to their own weight. At this time, the other group is fed one by one along the first welded capacitor 6 to be welded.

[0040] The thin film capacitor welding mechanism 4 and the cutting mechanism 5 of the utility model are staggeredly installed, and the cutting operation is not affected during welding. During the cutting operation, at least one capacitor 6 on the feeding track 2 is always kept in a welded state. The wire 31 moves horizontally with the capacitor 6 welded thereto, thereby realizing autonomous straightening and conveying of the wire 31, automating production, and improving product quality.

[0041] In one embodiment,

[0042] The welding mechanism 4 also includes a synchronous driving unit that drives the first welding head 41 and the second welding head 42 to move toward or away from each other in the horizontal direction; it is responsible for driving the first welding head 41 and the second welding head 42 in the welding mechanism 4 to move synchronously, thereby realizing synchronous welding of the two end wires 31 and ensuring the accuracy and consistency of the welding process.

[0043] In one embodiment,

[0044] The synchronous drive unit includes a first guide rail 43, a second guide rail 44, a cylinder 45, and a connecting rod assembly 46. The first welding head 41 is slidably mounted on the first guide rail 43, and the second welding head 42 is slidably mounted on the second guide rail 44. The telescopic end of the cylinder 45 is connected to the first welding head 41. The connecting rod assembly 46 is connected between the first welding head 41 and the second welding head 42 and drives them to move toward or away from each other synchronously.

[0045] The working principle and beneficial effects of the above embodiment are as follows:

[0046] The synchronous drive unit enables the first welding head 41 and the second welding head 42 to slide along their respective guide rails, and the first welding head 41 is connected through the telescopic end of the cylinder 45, and the connecting rod assembly 46 connects the first welding head 41 and the second welding head 42, so as to realize the synchronous movement toward or away from each other, mechanical linkage, high positioning accuracy and good welding quality.

[0047] In one embodiment,

[0048] like Figure 4As shown, the above-mentioned connecting rod assembly 46 includes a first connecting rod 461 rotatably connected to the left side of the first welding head 41, a second connecting rod 462 rotatably installed on the right side of the second welding head 42, and a third connecting rod 463 rotatably connected to the first connecting rod 461 and the second connecting rod 462 from both ends. The synchronous drive unit also includes a rotating shaft 47 extending up and down and aligned with the central axis of the first welding head 41. The rotating shaft 47 is rotatably installed on the workbench 1, and the third connecting rod 463 is rotatably connected to the above-mentioned rotating shaft 47 from the middle.

[0049] The working principle and beneficial effects of the above embodiment are as follows:

[0050] The two ends of the third link 463 are rotatably connected to the first link 461 and the second link 462 respectively to form a mechanical linkage system. The rotating shaft 47 is a key component of the synchronous drive unit and rotates around its own axis. The middle part of the third link 463 is rotatably connected to the rotating shaft 47, thereby driving the first link 461 and the second link 462 to achieve synchronous movement of the two welding heads and reduce welding defects caused by inconsistent movement of the welding heads.

[0051] In one embodiment,

[0052] The above-mentioned first welding head 41 and second welding head 42 are both configured as parallel electrode double welding heads; according to the design of the welding points between the capacitor 6 and the wire 31, double-point welding on both sides of the capacitor 6 can be achieved in a single pass, which makes welding more efficient. At the same time, the heat applied by the double welding heads is evenly distributed, which can reduce the deformation of the capacitor 6 during the welding process.

[0053] In one embodiment,

[0054] The cutting mechanism 5 is arranged on the side of the welding mechanism 4 away from the wire conveying mechanism 3. The offset between the cutting mechanism 5 and the central axis of the welding mechanism 4 is half the width of the capacitor 6. The positions of the cutting mechanism 5 and the welding mechanism 6 are precisely positioned. When the welding mechanism 4 completes the welding work of a capacitor 6, the cutting mechanism 5 can immediately perform shearing, thereby improving production efficiency.

[0055] In summary:

[0056] The utility model is a welding and cutting device for film capacitors. The capacitors 6 are moved one by one to the welding position along the feeding track 2. The wires 31 are fed to both sides of the capacitors 6. The welding mechanism 4 welds the wires 31 to the capacitors 6. After the welding is completed, when the preset number is reached, the welding mechanism 4 starts welding the next group of capacitors 6. At the same time, the cutting mechanism 5 cuts the wires 31 of the previous group of capacitors 6. The cut capacitors 6 automatically fall due to their own weight, and the new capacitors 6 continue to move along the welded capacitors 6 to the welding position. The wires 31 are automatically fed as the capacitors 6 move, thereby realizing automated production.

[0057] The utility model discloses a device for welding and cutting film capacitors. The staggered design of the welding mechanism 4 and the cutting mechanism 5 allows both to be carried out simultaneously, thereby improving production efficiency. At the same time, at least one capacitor 6 is always kept in a welded state, ensuring continuous production. The wire 31 is automatically straightened and transported as the capacitor 6 welded thereto moves, thereby realizing automated production.

[0058] The utility model is a device for welding and cutting film capacitors. The welding mechanism 4 adopts a mechanical linkage structure of a cylinder 45 and a connecting rod assembly 46, so that the welding of the capacitor 6 can be completed with high positioning accuracy. The double-point synchronous welding on both sides is good and the efficiency is high.

[0059] The utility model discloses a welding and cutting device for film capacitors, which has the advantages of ingenious design, automated production, high welding stability and good quality.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. The terms "front", "back", "left" and "right" used in the text are not specific and are mainly used to more intuitively illustrate the technical solution and do not have a limiting effect. Those skilled in the art should understand that the above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They are not intended to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A welding and cutting device for film capacitors, characterized in that: include: A workbench (1) is provided with a feeding track (2), a wire conveying mechanism (3), a welding mechanism (4) and a cutting mechanism (5); A feeding track (2) on which capacitors (6) are fed one by one; A wire conveying mechanism (3) for conveying wires (31) to both sides of the feeding track (2); A welding mechanism (4), comprising a first welding head (41) and a second welding head (42), wherein the first welding head (41) and the second welding head (42) are arranged side by side and spaced apart on both sides of the feeding track (2), and are used to weld the wires (31) on both sides to the two ends of the capacitor (6); The cutting mechanism (5) comprises two sets of pneumatic scissors, which are respectively arranged on both sides of the feeding track (2) and offset from the central axis of the welding mechanism (4).

2. The device for welding and cutting thin film capacitors according to claim 1, characterized in that: The welding mechanism (4) further comprises a synchronous driving unit for driving the first welding head (41) and the second welding head (42) to move toward or away from each other in a horizontal direction.

3. The device for welding and cutting thin film capacitors according to claim 2, characterized in that: The synchronous drive unit comprises a first guide rail (43), a second guide rail (44), a cylinder (45) and a connecting rod assembly (46), wherein the first welding head (41) is slidably mounted on the first guide rail (43), the second welding head (42) is slidably mounted on the second guide rail (44), the telescopic end of the cylinder (45) is connected to the first welding head (41), and the connecting rod assembly (46) is connected between the first welding head (41) and the second welding head (42) and drives them to move toward or away from each other synchronously.

4. The device for welding and cutting thin film capacitors according to claim 3, characterized in that: The connecting rod assembly (46) includes a first connecting rod (461) rotatably connected to the left side of the first welding head (41), a second connecting rod (462) rotatably installed on the right side of the second welding head (42), and a third connecting rod (463) rotatably connected to the first connecting rod (461) and the second connecting rod (462) from both ends. The synchronous drive unit also includes a rotating shaft (47) extending up and down and aligned with the central axis of the first welding head (41). The rotating shaft (47) is rotatably installed on the workbench (1), and the third connecting rod (463) is rotatably connected to the rotating shaft (47) from the middle.

5. The device for welding and cutting thin film capacitors according to claim 1, characterized in that: The first welding head (41) and the second welding head (42) are both configured as parallel electrode double welding heads.

6. The device for welding and cutting thin film capacitors according to claim 1, characterized in that: The cutting mechanism (5) is arranged on a side of the welding mechanism (4) away from the wire conveying mechanism (3), and the offset between the cutting mechanism (5) and the central axis of the welding mechanism (4) is half the width of the capacitor (6).

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