A welding device and method for producing electrolytic capacitors

Abstract

This invention relates to the field of electrolytic capacitor technology, specifically to a welding apparatus and method for the production of electrolytic capacitors, comprising a support; the support is provided with a fixing frame and a winding frame; the fixing frame is rotatably provided with a frustum; the winding frame is rotatably provided with a roller; an aluminum foil is wound between the outer wall of the frustum and the winding frame; slots are respectively formed on the two side walls of the frustum; a clamping mechanism is provided at the slot; the fixing frame is provided with an arc track that cooperates with the clamping mechanism; the fixing frame is provided with an aluminum nail feeding mechanism, a riveting mechanism, an aluminum foil cutting mechanism, an aluminum nail punching mechanism, a soldering mechanism, and a lead feeding mechanism in sequence along the arc track. This invention uses the riveting, punching, and soldering processes of aluminum nails for welding in the production of electrolytic capacitors; it can simplify the production process, and modular production improves production efficiency and shortens the production cycle.

Description

Technical Field

[0001] The present invention relates to the technical field of electrolytic capacitors, and in particular to a welding device and method for producing electrolytic capacitors. Background Art

[0002] In the production of existing electrolytic capacitors, aluminum foil and lead wires are usually riveted and fixed or manually welded. The operation is time-consuming and labor-intensive, the welding area is small, and the welding parts are not firm and easy to fall off, which creates hidden dangers and affects the electrical connection performance of the capacitor during use. Summary of the invention

[0003] The purpose of the present invention is to provide a welding device and method for producing electrolytic capacitors in view of the above-mentioned deficiencies in the prior art.

[0004] The object of the present invention is achieved by the following technical scheme: A welding device for electrolytic capacitor production, comprising a bracket; the bracket is provided with a fixing frame and a winding frame; the fixing frame is provided with a rotatable table; the winding frame is provided with a roller for rotation; an aluminum foil piece is wound between the outer wall of the rotatable table and the winding frame;

[0005] The two side walls of the truncated table are respectively provided with slots; the slots are provided with clamping mechanisms; the fixing frame is provided with an arc track cooperating with the clamping mechanism;

[0006] The fixing frame is provided with an aluminum nail feeding mechanism, a riveting mechanism, an aluminum foil cutting mechanism, an aluminum nail punching mechanism, a tinning mechanism and a pin feeding mechanism in sequence along the circular arc track.

[0007] The present invention is further configured such that the aluminum nail feeding mechanism includes an aluminum nail bin arranged on a fixed frame, an aluminum nail finger cylinder arranged at the bottom of the aluminum nail bin, and an aluminum nail telescopic cylinder for driving the aluminum nail finger cylinder to rise and fall between the aluminum nail bin and the circular arc track.

[0008] The present invention is further configured such that the aluminum foil cutting mechanism comprises a cutting cylinder arranged on a fixing frame and a cutter arranged on an output end of the cutting cylinder; the cutter is arranged at the bottom of the circular arc track.

[0009] The present invention is further configured such that the aluminum nail punching mechanism includes a punching seat arranged on a fixed frame, a template movablely arranged on the punching seat, and a punching needle arranged on the template; the punching needle is movablely arranged on the top of the arc track; a punching spring is provided between the punching seat and the template.

[0010] The present invention is further configured such that the tin-filling mechanism comprises a liquid storage tank arranged on a fixed frame; the liquid storage tank is arranged on the top of the circular arc track; and a control valve is arranged at the outlet of the liquid storage tank.

[0011] The present invention is further configured such that the pin loading mechanism includes a pin bin arranged on a fixed frame, a pin finger cylinder arranged at the bottom of the pin bin, and a pin telescopic cylinder for driving the pin finger cylinder to rise and fall between the pin bin and the circular arc track.

[0012] The present invention is further configured as follows: the clamping mechanism includes a clamping seat arranged on a truncated table and a pressure plate movably arranged at the slot; a reset chamber is arranged in the clamping seat; the pressure plate is provided with a connecting rod; the connecting rod is movably and telescopically arranged in the reset chamber; a reset spring is provided between the connecting rod and the reset chamber; the pressure plate is movably arranged on one side of the clamping seat; a clamping groove is provided on one side of the clamping seat; the side of the pressure plate away from the clamping seat is used to abut against the circular arc track.

[0013] The present invention is further configured that the clamping mechanism further comprises a pressing block; the pressing block is movably arranged at the bottom of the clamping seat; a limiting block is arranged at a side of the pressing block away from the pressing plate;

[0014] The fixing frame is provided with a limit seat; the round table is rotatably arranged outside the limit seat; the round table and the limit seat are arranged concentrically; the limit seat is provided with a first limit track between the aluminum nail feeding mechanism and the pin feeding mechanism; the limit seat is provided with a second limit track between the riveting mechanism, the aluminum foil cutting mechanism, the aluminum nail punching mechanism and the tinning mechanism; the first limit track and the second limit track are arranged concentrically; the radius of the first limit track is smaller than the radius of the second limit track; the limit block is movably provided on the first limit track and the second limit track;

[0015] The riveting mechanism comprises a riveting seat arranged on a fixed frame and a pressing roller rotatably arranged on the riveting seat.

[0016] The present invention is further configured such that the arc track is provided with a feed slope at the aluminum nail feeding mechanism; and the arc track is provided with a discharge slope at the pin feeding mechanism.

[0017] A welding method comprises the following steps:

[0018] S1, winding the aluminum foil between the outer wall of the truncated table and the winding frame;

[0019] S2, the aluminum nail feeding mechanism places the aluminum nail piece on the clamping mechanism, so that the aluminum nail piece is placed on the aluminum foil piece;

[0020] S3, the riveting mechanism presses the aluminum nail piece onto the aluminum foil piece;

[0021] S4, the aluminum nail punching mechanism punches holes on the top of the aluminum nail piece;

[0022] S5, the tinning mechanism performs tinning at the punching position of the aluminum nail piece;

[0023] S6, the pin feeding mechanism places the pin part at the punching position of the aluminum nail part;

[0024] S7, the aluminum foil cutting mechanism cuts off the aluminum foil piece;

[0025] S8, cooling the aluminum nail parts.

[0026] Beneficial effects of the present invention: The present invention uses the processes of riveting, punching and tinning aluminum nails for welding in the production of electrolytic capacitors; the production process can be simplified, and modular production improves production efficiency and shortens the production cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the present invention after the bracket is hidden;

[0030] Figure 3 It is a schematic diagram of the structure of the present invention after the bracket, the fixing frame and the winding frame are hidden;

[0031] Figure 4 It is a structural schematic diagram of another viewing angle after the bracket, the fixing frame and the winding frame of the present invention are hidden;

[0032] Figure 5 It is a cross-sectional view of the clamping mechanism, the aluminum foil piece, the pin piece and the aluminum nail piece of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0034] Figure 7 is a cross-sectional view of the clamping mechanism of the present invention;

[0035] Figure 8 It is a structural schematic diagram of the aluminum nail member of the present invention;

[0036] Fig. 9 is a cross-sectional view of the aluminum nail member of the present invention;

[0037] Among them: 1. bracket; 11. winding frame; 12. roller; 13. aluminum foil piece; 2. fixing frame; 21. arc track; 22. feeding slope; 23. discharging slope; 3. round table; 31. slotting; 41. aluminum nail silo; 42. aluminum nail finger cylinder; 43. aluminum nail telescopic cylinder; 44. cutting cylinder; 45. cutter; 46. punching seat; 47. template; 48. punching needle; 49. punching spring; 51. liquid storage tank; 52. Pin hopper; 53. Pin finger cylinder; 54. Pin telescopic cylinder; 55. Pin member; 56. Riveting seat; 57. Pressing roller; 6. Clamping seat; 61. Reset chamber; 62. Clamping groove; 63. Pressing plate; 64. Connecting rod; 65. Reset spring; 66. Pressing block; 67. Limiting block; 7. Limiting seat; 71. First limiting track; 72. Second limiting track; 8. Aluminum nail member; 81. Slot; 82. Through hole. DETAILED DESCRIPTION

[0038] The present invention is further described in conjunction with the following examples.

[0039] Depend on Figures 1 to 9 It can be seen that the welding device for electrolytic capacitor production described in this embodiment includes a bracket 1; the bracket 1 is provided with a fixing frame 2 and a winding frame 11; the fixing frame 2 is rotatably provided with a round table 3; the winding frame 11 is rotatably provided with a roller 12; an aluminum foil piece 13 is wound between the outer wall of the round table 3 and the winding frame 11;

[0040] The two side walls of the truncated table 3 are respectively provided with slots 31; a clamping mechanism is provided at the slots 31; the fixing frame 2 is provided with an arc track 21 cooperating with the clamping mechanism;

[0041] The fixing frame 2 is provided with an aluminum nail feeding mechanism, a riveting mechanism, an aluminum foil cutting mechanism, an aluminum nail punching mechanism, a tinning mechanism and a pin feeding mechanism in sequence along the arc track 21 .

[0042] Specifically, the welding device for electrolytic capacitor production described in this embodiment has a clamping groove 81 at the bottom of the aluminum nail piece 8, which can be clamped on the top of the aluminum foil piece 13;

[0043] When in use, the aluminum foil piece 13 is first wound between the outer wall of the truncated table 3 and the winding frame 11; then the aluminum nail feeding mechanism places the aluminum nail piece 8 on the clamping mechanism, so that the clamping groove 81 of the aluminum nail piece 8 is clamped on the top of the aluminum foil piece 13, and then the truncated table 3 is rotated to drive the clamping mechanism to move to the riveting mechanism, and the riveting mechanism presses the aluminum nail piece 8 onto the aluminum foil piece 13; then the truncated table 3 drives the clamping mechanism to move to the aluminum nail punching mechanism, and the aluminum nail punching mechanism punches the top of the aluminum nail piece 8; then the truncated table 3 drives the clamping mechanism to move to the tinning mechanism , the tin-filling mechanism fills tin at the punching position of the aluminum nail part 8; then the round table 3 drives the clamping mechanism to move to the pin feeding mechanism, and the pin feeding mechanism places the pin part 55 at the punching position of the aluminum nail part 8; at this time, another clamping mechanism moves to the aluminum nail feeding mechanism to feed the aluminum nail part 8, and when the other clamping mechanism moves to the riveting mechanism for riveting, the aluminum foil cutting mechanism cuts off the aluminum foil part 13, thereby cutting off the previous aluminum foil part 13, the aluminum nail part 8 and the pin part 55, and finally the aluminum nail part 8 is cooled.

[0044] This embodiment uses the process of riveting, punching and tinning the aluminum nail piece 8 for welding in the production of electrolytic capacitors; it can simplify the production process, modular production improves production efficiency and shortens the production cycle. In addition, a through hole 82 connected to the slot 81 can be set on the aluminum nail piece 8. After the punching process, the punching position is connected to the through hole 82, so that during the tinning process, the tin flows to the aluminum foil piece 13, thereby increasing the welding area between the aluminum foil piece 13 and the aluminum nail piece 8, improving the stability of the connection, reducing the risk of loosening or falling off of the welding point, avoiding the problem of thermal damage in traditional welding, and reducing the possibility of material deformation caused by high temperature.

[0045] The welding device described in this embodiment is used for the production of electrolytic capacitors, and the aluminum nail feeding mechanism includes an aluminum nail bin 41 arranged on a fixed frame 2, an aluminum nail finger cylinder 42 arranged at the bottom of the aluminum nail bin 41, and an aluminum nail telescopic cylinder 43 for driving the aluminum nail finger cylinder 42 to rise and fall between the aluminum nail bin 41 and the circular arc track 21.

[0046] Specifically, through the above-mentioned setting, the aluminum nail telescopic cylinder 43 can drive the aluminum nail finger cylinder 42 to move to the outlet of the aluminum nail silo 41. After the aluminum nail finger cylinder 42 clamps the aluminum nail part 8, the aluminum nail telescopic cylinder 43 moves the aluminum nail finger cylinder 42 and the aluminum nail part 8 to the position of the clamping mechanism, thereby completing the loading of the aluminum nail part 8.

[0047] In the welding device for electrolytic capacitor production described in this embodiment, the aluminum foil cutting mechanism includes a cutting cylinder 44 provided on a fixing frame 2 and a cutter 45 provided at the output end of the cutting cylinder 44; the cutter 45 is provided at the bottom of the arc track 21. Specifically, the above arrangement facilitates the cutting process of the aluminum foil piece 13.

[0048] The welding device for electrolytic capacitor production described in this embodiment comprises an aluminum nail punching mechanism including a punching seat 46 arranged on a fixing frame 2, a template 47 movable and arranged on the punching seat 46, and a punching needle 48 arranged on the template 47; the punching needle 48 is movable and arranged on the top of the arc track 21; a punching spring 49 is provided between the punching seat 46 and the template 47.

[0049] Specifically, through the above arrangement, in cooperation with an external stamping device, the template 47 is driven to descend, and the top of the aluminum nail piece 8 can be punched by the punching needle 48 .

[0050] In the welding device for electrolytic capacitor production described in this embodiment, the tinning mechanism includes a liquid storage tank 51 disposed on the fixing frame 2; the liquid storage tank 51 is disposed on the top of the arc track 21; and a control valve is disposed at the outlet of the liquid storage tank 51. Specifically, through the above arrangement, the operation of the control valve is controlled, that is, the tin in the liquid storage tank 51 can flow into the punching position of the aluminum nail piece 8 at the outlet.

[0051] The present embodiment describes a welding device for electrolytic capacitor production, wherein the pin loading mechanism includes a pin bin 52 disposed on a fixed frame 2, a pin finger cylinder 53 disposed at the bottom of the pin bin 52, and a pin telescopic cylinder 54 for driving the pin finger cylinder 53 to rise and fall between the pin bin 52 and the arc track 21.

[0052] Specifically, through the above-mentioned setting, the pin telescopic cylinder 54 can drive the pin finger cylinder 53 to move to the exit of the pin silo 52. After the pin finger cylinder 53 clamps the pin part 55, the pin telescopic cylinder 54 moves the pin finger cylinder 53 and the pin part 55 to the position of the clamping mechanism, thereby placing the pin part 55 to the punching position of the aluminum nail part 8.

[0053] The welding device for electrolytic capacitor production described in this embodiment comprises a clamping mechanism including a clamping seat 6 arranged on a truncated table 3 and a pressure plate 63 movably arranged at a slot 31; a reset chamber 61 is arranged in the clamping seat 6; the pressure plate 63 is provided with a connecting rod 64; the connecting rod 64 is movably and telescopically arranged in the reset chamber 61; a reset spring 65 is arranged between the connecting rod 64 and the reset chamber 61; the pressure plate 63 is movably arranged on one side of the clamping seat 6; a clamping groove 62 is arranged on one side of the clamping seat 6; the side of the pressure plate 63 away from the clamping seat 6 is used to abut against the circular arc track 21.

[0054] Specifically, the aluminum nail feeding mechanism is arranged at one end of the arc track 21. When the clamping mechanism has not yet entered the arc track 21, under the action of the return spring 65, the pressing plate 63 is separated from one side of the clamping seat 6.

[0055] When the clamping mechanism rotates to the position of the aluminum nail feeding mechanism, the aluminum nail feeding mechanism places the aluminum nail piece 8 in the clamping groove 62 on one side of the clamping seat 6, and clamps the clamping groove 81 of the aluminum nail piece 8 on the top of the aluminum foil piece 13; continue to drive the clamping mechanism so that the clamping mechanism enters the circular arc track 21, at this time the circular arc track 21 abuts against the pressure plate 63, thereby squeezing the return spring 65 so that the pressure plate 63 abuts against one side of the clamping seat 6, thereby clamping the aluminum nail piece 8 between the clamping groove 62 and the pressure plate 63.

[0056] A welding device for electrolytic capacitor production described in this embodiment, the clamping mechanism also includes a pressure block 66; the pressure block 66 is movably arranged at the bottom of the clamping seat 6; a limit block 67 is provided on the side of the pressure block 66 away from the pressure plate 63; the fixing frame 2 is provided with a limit seat 7; the round table 3 is rotatably arranged outside the limit seat 7; the round table 3 and the limit seat 7 are arranged concentrically; the limit seat 7 is provided with a first limit track 71 between the aluminum nail feeding mechanism and the pin feeding mechanism; the limit seat 7 is provided with a second limit track 72 between the riveting mechanism, the aluminum foil cutting mechanism, the aluminum nail punching mechanism and the tinning mechanism; the first limit track 71 and the second limit track 72 are arranged concentrically; the radius of the first limit track 71 is smaller than the radius of the second limit track 72; the limit block 67 is movably arranged on the first limit track 71 and the second limit track 72;

[0057] The riveting mechanism includes a riveting seat 56 disposed on the fixing frame 2 and a pressing roller 57 rotatably disposed on the riveting seat 56 .

[0058] Specifically, through the above-mentioned arrangement, when the clamping mechanism moves to the position of the riveting mechanism, the limit block 67 moves from the first limit track 71 to the second limit track 72. Since the radius of the second limit track 72 is greater than the radius of the first limit track 71, the pressure block 66 is pushed to move to the side close to the pressure plate 63. By cooperating with the pressure roller 57, the aluminum nail piece 8 and the aluminum foil piece 13 can be riveted.

[0059] In the welding device for producing electrolytic capacitors described in this embodiment, the arc track 21 is provided with a feed slope 22 at the aluminum nail feeding mechanism; the arc track 21 is provided with a discharge slope 23 at the pin feeding mechanism. The above arrangement facilitates the pressing plate 63 and the clamping seat 6 to move closer or farther away.

[0060] A welding method described in this embodiment includes the following steps:

[0061] S1, winding the aluminum foil 13 between the outer wall of the truncated table 3 and the winding frame 11;

[0062] S2, the aluminum nail feeding mechanism places the aluminum nail piece 8 on the clamping mechanism, so that the aluminum nail piece 8 is placed on the aluminum foil piece 13;

[0063] S3, the riveting mechanism presses the aluminum nail piece 8 onto the aluminum foil piece 13;

[0064] S4, the aluminum nail punching mechanism punches the top of the aluminum nail piece 8;

[0065] S5, the tinning mechanism performs tinning at the punching position of the aluminum nail piece 8;

[0066] S6, the pin feeding mechanism places the pin member 55 at the punching position of the aluminum nail member 8;

[0067] S7, the aluminum foil cutting mechanism cuts off the aluminum foil piece 13;

[0068] S8, cooling the aluminum nail piece 8.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A welding device for electrolytic capacitor production, characterized in that: It comprises a bracket; the bracket is provided with a fixing frame and a winding frame; the fixing frame is provided with a round table for rotation; the winding frame is provided with a roller for rotation; an aluminum foil is wound between the outer wall of the round table and the winding frame; The two side walls of the truncated table are respectively provided with slots; the slots are provided with clamping mechanisms; the fixing frame is provided with an arc track cooperating with the clamping mechanism; The fixing frame is provided with an aluminum nail feeding mechanism, a riveting mechanism, an aluminum foil cutting mechanism, an aluminum nail punching mechanism, a tinning mechanism and a pin feeding mechanism in sequence along the circular arc track; The aluminum nail feeding mechanism comprises an aluminum nail bin arranged on a fixed frame, an aluminum nail finger cylinder arranged at the bottom of the aluminum nail bin, and an aluminum nail telescopic cylinder for driving the aluminum nail finger cylinder to rise and fall between the aluminum nail bin and the circular track; The aluminum foil cutting mechanism comprises a cutting cylinder arranged on a fixed frame and a cutter arranged on an output end of the cutting cylinder; the cutter is arranged at the bottom of the circular arc track; The aluminum nail punching mechanism comprises a punching seat arranged on a fixed frame, a template arranged on the punching seat for lifting and movement, and a punching needle arranged on the template; the punching needle is arranged on the top of the arc track for lifting and movement; a punching spring is arranged between the punching seat and the template; The clamping mechanism includes a clamping seat arranged on a truncated table and a pressure plate movably arranged at the slot; a reset cavity is arranged in the clamping seat; the pressure plate is provided with a connecting rod; the connecting rod is movably and telescopically arranged in the reset cavity; a reset spring is arranged between the connecting rod and the reset cavity; the pressure plate is movably arranged on one side of the clamping seat; a clamping groove is arranged on one side of the clamping seat; the side of the pressure plate away from the clamping seat is used to abut against the circular arc track.

2. A welding device for electrolytic capacitor production according to claim 1, characterized in that: The tin-filling mechanism comprises a liquid storage tank arranged on a fixed frame; the liquid storage tank is arranged on the top of the circular arc track; and a control valve is arranged at the outlet of the liquid storage tank.

3. A welding device for electrolytic capacitor production according to claim 1, characterized in that: The pin feeding mechanism comprises a pin silo arranged on a fixing frame, a pin finger cylinder arranged at the bottom of the pin silo, and a pin telescopic cylinder used for driving the pin finger cylinder to rise and fall between the pin silo and the circular arc track.

4. A welding device for electrolytic capacitor production according to claim 1, characterized in that: The clamping mechanism also includes a pressing block; the pressing block is movably arranged at the bottom of the clamping seat; a limiting block is arranged on the side of the pressing block away from the pressing plate; The fixing frame is provided with a limit seat; the round table is rotatably arranged outside the limit seat; the round table and the limit seat are arranged concentrically; the limit seat is provided with a first limit track between the aluminum nail feeding mechanism and the pin feeding mechanism; the limit seat is provided with a second limit track between the riveting mechanism, the aluminum foil cutting mechanism, the aluminum nail punching mechanism and the tinning mechanism; the first limit track and the second limit track are arranged concentrically; the radius of the first limit track is smaller than the radius of the second limit track; the limit block is movably provided on the first limit track and the second limit track; The riveting mechanism comprises a riveting seat arranged on a fixed frame and a pressing roller rotatably arranged on the riveting seat.

5. A welding device for electrolytic capacitor production according to claim 1, characterized in that: The arc track is provided with a feeding inclined plane at the aluminum nail feeding mechanism; and the arc track is provided with a discharging inclined plane at the pin feeding mechanism.

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