A horn capacitor positioning and welding device

Abstract

The utility model relates to the field of ox horn capacitor production, especially a kind of ox horn capacitor positioning welding device, including machine table, several racks and positioning mechanism, machine table is set before and after, and the welding head is connected in the front side of machine table by first drive component, and the rotary disc is rotatably connected in the back side of machine table by second drive component, and several racks are fixed on the top of rotary disc along the axial direction.The position of pin wire is guided and limited by two limiting grooves in positioning mechanism, two pin wires enter corresponding two limiting grooves by moving rack downward, the end of pin wire needing welding is pressed on the connecting point of circuit board by pressing plate in limiting groove, the stability of pin wire positioning is improved, the connecting point position of circuit board is avoided to deviate, welding quality is improved, the pressing plate is moved up and down in limiting groove by rotating first screw rod, and different sizes of pin wire are pressed.

Description

Technical Field

[0001] This utility model relates to the field of horn capacitor manufacturing, and in particular to a horn capacitor positioning and welding device. Background Technology

[0002] The horn capacitor positioning and welding device is a device used to precisely weld horn capacitors onto circuit boards. It uses the mechanical structure of the clamp to hold and fix the horn capacitors, keeping them in a stable position during the welding process.

[0003] According to the patent document with announcement number CN223277300U, the patent document describes a method where an external loading robot places a capacitor body with lead wires and a welding plate above a locking base and a mating front seat, respectively. The position of the welding plate corresponds to the locking positioning area. The welding plate presses down on multiple hollow columns above the locking positioning area. The bottom of the pressed hollow columns can contact the corresponding contact sensors. An external control terminal judges whether the position of the welding plate is accurate based on the contact status and alerts the staff to take action. The rotation of the self-rotating disc drives the locking base to pass through the welding worktable in sequence. The connection point between the lead wires and the welding plate is laser welded by a laser output head.

[0004] The patent document states that after placing the capacitor body with the lead wires and the welding pad above the locking base and the mating front seat respectively, the position of the welding pad is determined by the locking position, but the position of the lead wires lacks a limit. Since the lead wires have a certain degree of elasticity, the connection point between the lead wires and the welding pad is prone to displacement during the feeding and welding process, which may lead to poor contact or even open welds, affecting the welding quality. Utility Model Content

[0005] The purpose of this invention is to provide a horn capacitor positioning and welding device to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A positioning and welding device for horn capacitors includes a machine base, several placement racks, and a positioning mechanism.

[0008] The machine is set up at the front and back. The front of the machine is connected to a welding head via a first drive assembly, and the rear of the machine is connected to a turntable via a second drive assembly.

[0009] Several placement racks are fixed axially to the top of the turntable. A capacitor is placed on the top of the placement rack. Two pins are fixed to one end of the capacitor. A circuit board is provided below the pins. The circuit board is fixed to the top of the turntable by a limiting mechanism.

[0010] The positioning mechanism includes a limiting plate, a positioning frame, and two pressure plates. The limiting plate is fixed to one end of the placement frame and has two limiting grooves. The positioning frame is detachably installed on one side of the limiting plate via a snap-fit ​​assembly and has two positioning grooves. The pressure plates are slidably connected in the positioning grooves. An adjusting component is provided between the pressure plates and the positioning frame to drive the pressure plates to move up and down.

[0011] Preferably, the snap-fit ​​assembly includes two magnetic blocks and two magnetic frames, with the magnetic blocks inserted into the top of the magnetic frames, the two magnetic blocks fixed to the bottom of the positioning frame, and the two magnetic frames fixed to the top of the limiting plate.

[0012] Preferably, the adjusting component is a first screw, which is rotatably connected to the pressure plate and threadedly connected to the positioning frame. A rubber strip is fixed on the side of the pressure plate near the lead wire.

[0013] Preferably, the limiting mechanism includes a support plate and four limiting posts. The support plate is fixed to the top of the turntable, and the limiting posts are slidably connected to the top of the support plate. A second screw is provided between the limiting posts and the support plate. The second screw is rotatably connected to the limiting posts and threadedly connected to the support plate.

[0014] Preferably, the first drive assembly includes a support frame, a hydraulic cylinder, and a slide plate. The support frame is fixed to the front side of the top of the machine tool, the hydraulic cylinder is fixed to the top of the support frame, the slide plate is fixed to the piston end of the hydraulic cylinder, and the welding head is fixed to the bottom of the slide plate.

[0015] Preferably, the second drive assembly includes a worm gear and a worm, the worm gear is fixed to the bottom of the turntable, the worm meshes with the worm gear, and a motor is fixed to the input end of the worm.

[0016] Preferably, the placement rack is M-shaped and the pressure plate is arc-shaped.

[0017] The advantages compared with the existing technology are as follows: the two limiting grooves in the positioning mechanism guide and limit the position of the pin wires. By moving the positioning frame downward, the two pin wires enter the corresponding two positioning grooves. The pressure plate in the positioning groove presses the end of the pin wire to be soldered onto the connection point of the circuit board, which improves the stability of the pin wire positioning, avoids the position of the connection point of the circuit board, and improves the soldering quality. By rotating the first screw, the pressure plate moves up and down in the positioning groove, which can adapt to pressing pin wires of different sizes. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the bull horn capacitor positioning and welding device described in this utility model;

[0020] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0021] Figure 3 This is a schematic diagram of the capacitor and placement frame structure of the bullhorn capacitor positioning and welding device described in this utility model;

[0022] Figure 4 This is a schematic diagram of the positioning frame and positioning groove structure of the bull horn capacitor positioning welding device described in this utility model;

[0023] Figure 5 This is a schematic diagram of the support plate and limiting column structure of the bull horn capacitor positioning and welding device described in this utility model;

[0024] Figure 6 This is a schematic diagram of the turntable structure of the bull horn capacitor positioning and welding device described in this utility model.

[0025] The annotations in the attached figures are explained as follows:

[0026] 100. Machine base; 200. Welding head; 300. Turntable; 401. Capacitor; 402. Placement rack; 501. Lead wire; 502. Limiting plate; 503. Limiting groove; 504. Positioning frame; 505. Positioning groove; 506. Pressure plate; 507. First screw; 601. Circuit board; 602. Support plate; 603. Limiting post; 604. Second screw; 701. Magnetic block; 702. Magnetic frame. Detailed Implementation

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. All electrical components mentioned in this document are electrically connected to an external main controller and 220V AC mains power, and the main controller can be a conventionally known device such as a computer that provides control.

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] like Figures 1-6As shown, a horn capacitor positioning and welding device includes a machine base 100, several placement racks 402 and a positioning mechanism.

[0030] The machine tool 100 is arranged at the front and rear. A welding head 200 is connected to the front of the machine tool 100 via a first drive assembly. The first drive assembly includes a support frame, a hydraulic cylinder, and a sliding plate. The support frame is fixed to the top front of the machine tool 100, the hydraulic cylinder is fixed to the top of the support frame, the sliding plate is fixed to the piston end of the hydraulic cylinder, and the welding head 200 is fixed to the bottom of the sliding plate. A turntable 300 is rotatably connected to the rear of the machine tool 100 via a second drive assembly. The second drive assembly includes a worm gear and a worm. The worm gear is fixed to the bottom of the turntable 300, and the worm and worm gear... The worm gear is connected to a motor at its input end. The motor drives the worm gear to rotate, and the worm gear meshes with the worm wheel, which in turn drives the worm wheel and the turntable 300 to rotate. This causes several placement racks 402 to rotate sequentially to the area below the welding head 200, so that the corresponding capacitor 401, two lead wires 501 and circuit board 601 are directly below the welding head 200. A hydraulic cylinder drives the slide plate to move downward, which in turn drives the welding head 200 to move downward to weld the two lead wires 501 to the connection point of the circuit board 601.

[0031] Several placement racks 402 are axially fixed to the top of the turntable 300. The placement racks 402 are M-shaped. A capacitor 401 is placed on top of each placement rack 402. Two leads 501 are fixed to one end of each capacitor 401. A circuit board 601 is located below the leads 501. The circuit board 601 is fixed to the top of the turntable 300 by a limiting mechanism. The limiting mechanism includes a support plate 602 and four limiting posts 603. The support plate 602 is fixed to the top of the turntable 300, and the limiting posts 603 are slidably connected to the top of the support plate 602. A space is provided between the limiting posts 603 and the support plate 602. There is a second screw 604, which is rotatably connected to the limiting post 603 and threadedly connected to the support plate 602. The four second screws 604 are rotated according to the size of the circuit board 601 to be welded, thereby driving the corresponding limiting post 603 to slide radially at the top. The four limiting posts 603 guide and limit the position of the circuit board 601 to be placed on the top of the support plate 602, and place the capacitor 401 on the top of the placement rack 402. The M-shaped placement rack 402 is adapted to support the capacitor 401 within a certain size range.

[0032] The positioning mechanism includes a limiting plate 502, a positioning frame 504, and two pressure plates 506. The limiting plate 502 is fixed to one end of the placement frame 402. The limiting plate 502 has two limiting grooves 503. The positioning frame 504 is detachably installed on one side of the limiting plate 502 via a snap-fit ​​assembly. The snap-fit ​​assembly includes two magnetic blocks 701 and two magnetic frames 702. The magnetic blocks 701 are inserted into the top of the magnetic frames 702, the two magnetic blocks 701 are fixed to the bottom of the positioning frame 504, and the two magnetic frames 702 are fixed to the limiting plate. At the top of 502, the positioning frame 504 has two positioning slots 505. A pressure plate 506 is slidably connected within the positioning slots 505. An adjusting element is provided between the pressure plate 506 and the positioning frame 504 to move the pressure plate 506 up and down. The pressure plate 506 is arc-shaped. The adjusting element is a first screw 507, which is rotatably connected to the pressure plate 506 and threadedly connected to the positioning frame 504. A rubber strip is fixed to the side of the pressure plate 506 near the lead wire 501 to hold the capacitor 40. 1. The end of the pin 501 near the circuit board 601 is pressed against the limiting plate 502, and the two pins 501 are placed in the corresponding two limiting slots 503. The two limiting slots 503 guide and limit the position of the pins 501. The positioning frame 504 is picked up and the two positioning slots 505 are aligned with the two pins 501 respectively. The positioning frame 504 is moved downward so that the two magnetic blocks 701 are inserted into the corresponding two magnetic frames 702 for temporary locking. The two pins 501 enter the corresponding two positioning slots 505. The pressure plate 506 in the positioning slot 505 presses the end of the pin 501 that needs to be soldered onto the connection point of the circuit board 601, which improves the stability of the pin positioning, avoids the position of the connection point of the circuit board 601 from shifting, and improves the soldering quality. The rubber strip buffers the pins 501 to avoid indentation. The first screw 507 is rotated to drive the pressure plate 506 to move up and down in the positioning slot 505 to adapt to pressing the pins 501 of different sizes.

[0033] Working principle: Based on the dimensions of the circuit board 601 required for welding, four second screws 604 are rotated, causing the corresponding limiting posts 603 to slide radially at the top. This allows the four limiting posts 603 to guide and position the circuit board 601 to be placed on top of the support plate 602. The capacitor 401 is placed on top of the placement rack 402. The M-shaped placement rack 402 supports the capacitor 401 within a certain size range. The end of the capacitor 401 closest to the circuit board 601 is pressed against the limiting plate 502. Simultaneously, two leads 501 are placed in the corresponding two limiting slots 503. The two limiting slots 503 guide and limit the position of the leads 501. The positioning frame 504 is then lifted to position the two leads... The positioning slots 505 correspond to the two pins 501 respectively. The positioning frame 504 moves downward so that the two magnetic blocks 701 are inserted into the corresponding two magnetic frames 702 for temporary locking. The two pins 501 enter the corresponding two positioning slots 505. The pressure plate 506 in the positioning slot 505 presses the end of the pin 501 that needs to be soldered onto the connection point of the circuit board 601, which improves the stability of the positioning of the pin 501, avoids the position of the connection point with the circuit board 601, and improves the soldering quality. The rubber strip buffers the pin 501 to avoid indentation. By rotating the first screw 507, the pressure plate 506 moves up and down in the positioning slot 505 to adapt to pressing the pins 501 of different sizes.

[0034] The motor drives the worm gear to rotate, which meshes with the worm wheel, thereby driving the worm wheel and the turntable 300 to rotate. This causes several placement frames 402, after positioning, to rotate sequentially below the welding head 200, so that the corresponding capacitor 401, two lead wires 501, and circuit board 601 are directly below the welding head 200. The hydraulic cylinder drives the slide plate to move downward, which in turn drives the welding head 200 to move downward to weld the two lead wires 501 to the connection point of the circuit board 601. After welding, the positioning frame 504 moves upward, causing the magnetic block 701 to detach from the magnetic frame 702. The welded circuit board 601, the two lead wires 501, and the circuit board 601 can then be removed.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A positioning and welding device for a horn capacitor, characterized in that: Includes a machine base (100), several placement racks (402), and a positioning mechanism; The machine base (100) is arranged at the front and rear. The front side of the machine base (100) is connected to a welding head (200) through a first drive assembly, and the rear side of the machine base (100) is rotatably connected to a turntable (300) through a second drive assembly. Several of the aforementioned placement racks (402) are axially fixed to the top of the turntable (300). A capacitor (401) is placed on the top of the placement rack (402). Two lead wires (501) are fixed to one end of the capacitor (401). A circuit board (601) is provided on the lower side of the lead wires (501). The circuit board (601) is fixed to the top of the turntable (300) by a limiting mechanism. The positioning mechanism includes a limiting plate (502), a positioning frame (504), and two pressure plates (506). The limiting plate (502) is fixed to one end of the placement frame (402). The limiting plate (502) has two limiting grooves (503). The positioning frame (504) is detachably installed on one side of the limiting plate (502) through a snap-fit ​​assembly. The positioning frame (504) has two positioning grooves (505). The pressure plate (506) is slidably connected in the positioning grooves (505). An adjusting component is provided between the pressure plate (506) and the positioning frame (504) to drive the pressure plate (506) to move up and down.

2. The positioning and welding device for a horn capacitor according to claim 1, characterized in that: The snap-fit ​​assembly includes two magnetic blocks (701) and two magnetic frames (702). The magnetic blocks (701) are inserted into the top of the magnetic frames (702), the two magnetic blocks (701) are fixed to the bottom of the positioning frame (504), and the two magnetic frames (702) are fixed to the top of the limiting plate (502).

3. The positioning and welding device for a horn capacitor according to claim 1, characterized in that: The adjusting component is a first screw (507), which is rotatably connected to the pressure plate (506) and threadedly connected to the positioning frame (504). A rubber strip is fixed on the side of the pressure plate (506) near the lead wire (501).

4. The positioning and welding device for a horn capacitor according to claim 1, characterized in that: The limiting mechanism includes a support plate (602) and four limiting posts (603). The support plate (602) is fixed to the top of the turntable (300). The limiting posts (603) are slidably connected to the top of the support plate (602). A second screw (604) is provided between the limiting posts (603) and the support plate (602). The second screw (604) is rotatably connected to the limiting posts (603) and threadedly connected to the support plate (602).

5. The positioning and welding device for a horn capacitor according to claim 1, characterized in that: The first drive assembly includes a support frame, a hydraulic cylinder, and a slide plate. The support frame is fixed to the front top of the machine base (100), the hydraulic cylinder is fixed to the top of the support frame, the slide plate is fixed to the piston end of the hydraulic cylinder, and the welding head (200) is fixed to the bottom of the slide plate.

6. The positioning and welding device for a horn capacitor according to claim 1, characterized in that: The second drive assembly includes a worm gear and a worm. The worm gear is fixed to the bottom of the turntable (300), the worm meshes with the worm gear, and a motor is fixed to the input end of the worm.

7. The positioning and welding device for a horn capacitor according to claim 1, characterized in that: The placement rack (402) is M-shaped, and the pressure plate (506) is arc-shaped.

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