A capacitor lead soldering fixture

Abstract

This utility model relates to the field of capacitor lead welding technology, and more particularly to a capacitor lead welding fixture, including a frame, a flipping mechanism mounted on the frame, a welding base plate mounted on the flipping mechanism, electrically operated telescopic rods symmetrically mounted on both sides of the welding base plate, and a cover plate mounted on the top of the electrically operated telescopic rods via ear plates. Multiple placement holes are vertically and correspondingly provided through the welding base plate and the cover plate. A bracket is installed in each of the placement holes on the welding base plate and the capacitor body is placed in the placement hole. A fixing mechanism suitable for capacitor bodies of different specifications is provided in the placement holes on the welding base plate. An adaptive adjustable welding mechanism is provided on the frame. This utility model, by placing the capacitor body in the placement hole on the welding base plate, and then activating the electrically operated telescopic rod to pull the cover plate down, pressing and fixing it from the top of the capacitor body, avoids displacement of the capacitor body during the welding process, thus preventing misalignment of the solder joints.

Description

Technical Field

[0001] This utility model relates to the field of capacitor lead welding technology, and in particular to a capacitor lead welding fixture. Background Technology

[0002] In the manufacturing process of capacitors, the welding of the capacitor core to the leads is one of the key steps. Currently, manual welding is the most common method, where operators typically rely solely on hand pressure or simple clamps to fix the capacitor core. This method has significant drawbacks. Firstly, hand pressure is easily affected by operator fatigue and uneven force, making it difficult to maintain stable pressure and causing slight displacement of the core during welding. Once the position shifts, the solder joint cannot accurately fall on the core electrode area, leading not only to quality issues such as cold solder joints and poor welds, but also potentially short circuits between adjacent leads, severely impacting product yield. Secondly, simple clamps are mostly of a general design and cannot be adapted to the size and shape of the capacitor core. For irregularly shaped or small cores, their fixing effect is particularly weak, further exacerbating the risk of welding position misalignment. Furthermore, the need to repeatedly adjust the core position before each welding operation significantly prolongs the operation time and results in low welding efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a capacitor pin welding fixture, which solves the technical problem that manual welding in existing technologies can easily lead to displacement of the capacitor core during the welding process, resulting in misaligned solder joints and quality defects such as incomplete soldering and cold soldering.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a capacitor lead welding fixture, including a frame, a flipping mechanism mounted on the frame, a welding base plate mounted on the flipping mechanism, electric telescopic rods symmetrically mounted on both sides of the welding base plate, a cover plate mounted on the top of the electric telescopic rods through an ear plate, multiple placement holes vertically corresponding to each other on the welding base plate and the cover plate, a bracket mounted in each placement hole on the welding base plate and the cover plate, a capacitor body placed in the placement hole, a fixing mechanism suitable for capacitor bodies of different specifications is provided in the placement hole on the welding base plate, and an adaptive distance adjustment welding mechanism is provided on the frame.

[0005] A further improvement is that the placement holes on the welding base plate and the cover plate are arranged in an alternating array, and pressure sensors are installed in the brackets on the cover plate.

[0006] A further improvement is that the fixing mechanism includes sliding holes symmetrically opened on both sides of the placement hole, an electromagnet is installed on the inner wall of the sliding hole, an elastic rope is installed on the electromagnet, a magnetic rod is installed at the end of the elastic rope, and an arc-shaped plate is fixed to the end of the magnetic rod.

[0007] A further improvement is that the welding mechanism includes a movable component one mounted on the frame, a movable component two mounted at the bottom of the movable component one, an electric lifting rod mounted at the bottom of the movable component two via a connecting plate, an installation plate mounted at the free end of the electric lifting rod, a welder mounted at the bottom of the installation plate, and wire guide plates symmetrically mounted on both sides of the installation plate, with wire routing holes obliquely opened on the wire guide plates.

[0008] A further improvement is that the first and second moving components have the same structure, and the second moving component is vertically arranged at the bottom of the first moving component, forming a cross structure.

[0009] A further improvement is that the flipping mechanism includes bearing seats symmetrically installed on both sides of the frame, a flipping shaft is rotatably connected inside the bearing seats, and the ends of the two flipping shafts are respectively connected to the side of the welded base plate. A flipping motor that drives the flipping shaft to rotate is installed on the bearing seats.

[0010] By employing the above technical solution, this utility model provides a capacitor lead soldering fixture, which has at least the following beneficial effects:

[0011] 1. This utility model places the capacitor in the placement hole on the welding base plate, and then activates the electric telescopic rod to pull the cover plate down, pressing and fixing it from the top of the capacitor. This avoids the problem of capacitor displacement during the welding process, which would lead to misalignment of the solder joints. It also enables batch fixing and welding of capacitors, improving welding efficiency.

[0012] 2. When the cover plate moves down, the pressure sensor installed on its internal bracket comes into contact with the top of the capacitor body and sends an electrical signal to the electric telescopic rod, causing it to stop moving down, thereby avoiding excessive pressure and damage to the capacitor body.

[0013] 3. When the capacitor body is placed in the placement hole, the electromagnet is energized, thereby generating a repulsive force between it and the magnetic rod, pushing the magnetic rod to move outward along the sliding hole, which in turn drives the two arc-shaped plates to move relative to each other, clamping and fixing capacitor bodies of different specifications, thereby improving the versatility of the tooling. Attached Figure Description

[0014] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the flipping mechanism and welding base plate and their structure of this utility model;

[0018] Figure 3 This is an independent schematic diagram of the welding base plate and its structure according to this utility model;

[0019] Figure 4 This is a cross-sectional view of the fixing mechanism of this utility model;

[0020] Figure 5 This is a partial cross-sectional view of the welding mechanism of this utility model;

[0021] Figure 6 This is a partial enlarged cross-sectional view of the mounting plate of this utility model.

[0022] In the diagram: 1. Frame;

[0023] 2. Tilting mechanism; 21. Bearing housing; 22. Tilting shaft; 23. Tilting motor;

[0024] 3. Welded base plate; 4. Electric telescopic rod; 5. Cover plate; 6. Placement hole; 7. Bracket; 71. Pressure sensor; 8. Capacitor body;

[0025] 9. Fixing mechanism; 91. Sliding hole; 92. Electromagnet; 93. Elastic rope; 94. Magnetic rod; 95. Arc-shaped plate;

[0026] 10. Welding mechanism; 101. Moving component one; 102. Moving component two; 103. Electric lifting rod; 104. Mounting plate; 105. Welder; 106. Lead wire plate; 107. Wiring hole. Detailed Implementation

[0027] 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.

[0028] Example 1

[0029] Given that manual welding using existing technology is prone to displacement of the capacitor core during the welding process, leading to misaligned solder joints and quality issues such as incomplete or cold solder joints, this embodiment provides a capacitor lead welding fixture. This fixture can fix capacitors in batches, and then perform precise welding using a welding mechanism, improving welding efficiency and avoiding problems such as incomplete or cold solder joints caused by hand tremors and positioning deviations in manual welding. Please refer to... Figures 1-6The capacitor lead welding fixture includes a frame 1, a flipping mechanism 2 mounted on the frame 1, a welding base plate 3 mounted on the flipping mechanism 2, electric telescopic rods 4 symmetrically mounted on both sides of the welding base plate 3, and a cover plate 5 mounted on the top of the electric telescopic rods 4 via ear plates. Multiple placement holes 6 are vertically and correspondingly opened on the welding base plate 3 and the cover plate 5. A bracket 7 is installed in each of the placement holes 6 on the welding base plate 3 and the cover plate 5. A capacitor body 8 is placed in the placement hole 6. A fixing mechanism 9 suitable for capacitor bodies 8 of different specifications is provided in the placement hole 6 on the welding base plate 3. An adaptive distance adjustment welding mechanism 10 is provided on the frame 1.

[0030] The placement holes 6 on the welding base plate 3 and the cover plate 5 are arranged in an alternating array. Each bracket 7 on the cover plate 5 is equipped with a pressure sensor 71. The capacitor body 8 is placed in the placement hole 6 on the welding base plate 3, and the bracket 7 in the placement hole 6 supports the capacitor body 8. Then, the electric telescopic rod 4 is activated to pull the cover plate 5 down and press and fix it from the top of the capacitor body 8. When the pressure sensor 71 installed in the bracket 7 on the cover plate 5 contacts the top of the capacitor body 8, it sends an electrical signal to the electric telescopic rod 4 to stop it from moving down, thereby avoiding excessive pressure and damage to the capacitor body 8. Then, the welding mechanism 10 is used to precisely weld the capacitor body 8, avoiding displacement of the capacitor body 8 during the welding process and causing misalignment of the weld points. The flipping mechanism 2 drives the fixed capacitor body 8 to flip and perform double-sided welding, which improves the welding efficiency.

[0031] Furthermore, the welding mechanism 10 includes a first movable component 101 mounted on the frame 1. A second movable component 102 is mounted at the bottom of the first movable component 101. An electric lifting rod 103 is mounted at the bottom of the second movable component 102 via a connecting plate. A mounting plate 104 is mounted at the free end of the electric lifting rod 103. A welder 105 is mounted at the bottom of the mounting plate 104. Wire guide plates 106 are symmetrically mounted on both sides of the mounting plate 104. Wire guide plates 106 are obliquely provided with wiring holes 107. The welding mechanism is connected by the first movable component 101 and the second movable component 102. 102 drives the welder 105 to move above the capacitor body 8, and then the electric lifting rod 103 is activated to push the mounting plate 104 down, so that the welder 105 at the bottom of the mounting plate 104 performs fixed-point welding on the capacitor body 8. During this process, the lead wires and solder wires are guided to the welding positions on the capacitor body 8 through the wiring holes 107 on the lead plates 106 installed on both sides of the mounting plate 104, thereby completing the lead wire welding work, improving the welding efficiency and welding accuracy, and avoiding problems such as cold solder joints.

[0032] The moving component 101 and the moving component 2 102 have the same structure, and the moving component 2 102 is longitudinally arranged at the bottom of the moving component 101. The two form a cross structure. When it is necessary to move the welder 105 laterally, the motor in the moving component 101 is started to drive the lead screw to rotate in the guide groove opened in the crossbeam, which in turn drives the threaded slide on the lead screw to move left and right along the guide groove, which drives the moving component 2 102 to move left and right, which in turn drives the welder 105 to move left and right laterally. Then, through the above-mentioned mechanism in the moving component 2 102, the welder 105 is moved back and forth, thereby welding the capacitor body 8 fixed on the welding base plate 3.

[0033] Since lead wires need to be soldered on both sides of the capacitor body 8, the device is also equipped with a flipping mechanism 2. The flipping mechanism 2 includes bearing seats 21 symmetrically installed on both sides of the frame 1. A flipping shaft 22 is rotatably connected inside the bearing seat 21, and the ends of the two flipping shafts 22 are respectively connected to the side of the welding base plate 3. A flipping motor 23 is installed on the bearing seat 21 to drive the flipping shaft 22 to rotate. After one end of the capacitor body 8 is soldered, the flipping motor 23 is then started to drive the flipping shaft 22 to flip inside the bearing seat 21, thereby driving the welding base plate 3 to flip, and the other end can be soldered in conjunction with the welding device 105.

[0034] Example 2

[0035] Because capacitor cores come in various specifications, it is difficult to use general-purpose fixtures to limit and fix them, thus increasing the risk of welding misalignment. Therefore, based on Example 1, as... Figures 1-6 As shown, the device is also equipped with a fixing mechanism 9, which includes sliding holes 91 symmetrically opened on both sides of the placement hole 6. An electromagnet 92 is installed on the inner wall of the sliding hole 91, and an elastic rope 93 is installed on the electromagnet 92. A magnetic rod 94 is installed at the end of the elastic rope 93, and an arc-shaped plate 95 is fixed to the end of the magnetic rod 94. When the capacitor body 8 is placed in the placement hole 6, the electromagnet 92 is energized, thereby generating a repulsive force between it and the magnetic rod 94, pushing the magnetic rod 94 to move outward along the sliding hole 91, thereby driving the two arc-shaped plates 95 to move relative to each other, clamping and fixing the capacitor bodies 8 of different specifications, thereby improving the versatility of the tooling.

[0036] It should be noted that, in this document, 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.

[0037] 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 capacitor lead soldering fixture, comprising a frame (1), characterized in that: The frame (1) is equipped with a flipping mechanism (2), a welding base plate (3) is installed on the flipping mechanism (2), electric telescopic rods (4) are symmetrically installed on both sides of the welding base plate (3), and a cover plate (5) is installed on the top of the electric telescopic rod (4) through the ear plate. Multiple placement holes (6) are vertically and correspondingly opened on the welding base plate (3) and the cover plate (5). A bracket (7) is installed in the placement holes (6) on the welding base plate (3) and the cover plate (5). A capacitor body (8) is placed in the placement hole (6). A fixing mechanism (9) suitable for capacitor bodies (8) of different specifications is provided in the placement hole (6) on the welding base plate (3). An adaptive distance adjustment welding mechanism (10) is provided on the frame (1).

2. The capacitor lead soldering fixture according to claim 1, characterized in that: The placement holes (6) on the welding base plate (3) and the cover plate (5) are arranged in an alternating array, and pressure sensors (71) are installed in the brackets (7) on the cover plate (5).

3. The capacitor lead soldering fixture according to claim 1, characterized in that: The fixing mechanism (9) includes sliding holes (91) symmetrically opened on both sides of the placement hole (6). An electromagnet (92) is installed on the inner wall of the sliding hole (91). An elastic rope (93) is installed on the electromagnet (92). A magnetic rod (94) is installed at the end of the elastic rope (93). An arc-shaped plate (95) is fixed to the end of the magnetic rod (94).

4. The capacitor lead soldering fixture according to claim 1, characterized in that: The welding mechanism (10) includes a first movable component (101) mounted on a frame (1), a second movable component (102) mounted at the bottom of the first movable component (101), an electric lifting rod (103) mounted at the bottom of the second movable component (102) via a connecting plate, an installation plate (104) mounted at the free end of the electric lifting rod (103), a welder (105) mounted at the bottom of the installation plate (104), and lead wire plates (106) symmetrically mounted on both sides of the installation plate (104). The lead wire plates (106) are inclinedly provided with wiring holes (107).

5. A capacitor lead soldering fixture according to claim 4, characterized in that: The first moving component (101) and the second moving component (102) have the same structure, and the second moving component (102) is arranged vertically at the bottom of the first moving component (101), forming a cross structure.

6. The capacitor lead soldering fixture according to claim 1, characterized in that: The flipping mechanism (2) includes bearing seats (21) symmetrically installed on both sides of the frame (1). A flipping shaft (22) is rotatably connected inside the bearing seat (21), and the ends of the two flipping shafts (22) are respectively connected to the side of the welding base plate (3). A flipping motor (23) for driving the flipping shaft (22) to rotate is installed on the bearing seat (21).

Images