CN110587182B - High-strength core end cover for capacitor and welding device and welding method thereof - Google Patents

High-strength core end cover for capacitor and welding device and welding method thereof Download PDF

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Publication number
CN110587182B
CN110587182B CN201910827619.2A CN201910827619A CN110587182B CN 110587182 B CN110587182 B CN 110587182B CN 201910827619 A CN201910827619 A CN 201910827619A CN 110587182 B CN110587182 B CN 110587182B
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welding
main body
groove
fixing
core
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CN110587182A (en
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张宏远
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Huangshan Shenge Electronic Technology Co Ltd
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Huangshan Shenge Electronic Technology Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426—Fixtures for other work
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
    • H01G13/006—Apparatus or processes for applying terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/228—Terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/33—Thin- or thick-film capacitors 

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

The welding device comprises a reserved welding groove formed in the inner joint, and the top of the reserved welding groove is of an opening structure; the lead body is tightly buckled in a fixing tube, the lead body comprises an insulating protection part and a contact conductive part which extends outwards, the contact conductive part extends outwards from the fixing tube, the contact conductive part is embedded in the inner joint, the fixing tube is connected with the end face of the inner joint in a clamping mode, and the fixing tube is used for protecting the connection position of the lead body and the inner joint; the fixing tube can fix the ends of the leads on the cores, so that the leads are flush, and the conductive parts extending outwards of the leads are flush and reach the standard, so that all the leads can be inserted into the corresponding inner connectors at one time, the insertion depth is ensured, and the insertion efficiency is high.

Description

High-strength core end cover for capacitor and welding device and welding method thereof
Technical Field
The invention belongs to the technical field of production of metallized film capacitors, and particularly relates to a high-strength core end cover for a capacitor, and a welding device and a welding method thereof.
Background
The metallized film capacitor is formed by evaporating a layer of metal film on the surface of a polyester film to replace a metal foil as an electrode, has excellent electrical characteristics, high stability and long service life, and can meet various applications;
the metallized film capacitor mainly comprises a battery cell, an end cover and a shell, wherein when in processing, a lead of the battery cell is required to be soldered with an inner joint of the end cover to realize electrical connection, and the assembled battery cell and the end cover can form a core end cover; when the process is processed, a worker needs to correspondingly place the battery core and the end cover on the template, and then manually insert each lead wire into the inner connector of the end cover one by one, because the soldering operation is a flow line operation, the retention time of the template on a feeding station is limited, and the worker can only place the core end cover and the wire when the template comes, so that the following problems can be caused: 1. the subsequent welding process often needs to wait for the completion of the wire plugging process to act, so that the processing efficiency is influenced; 2. the wire plugging time is short, the wire plugging effect of each lead cannot be accurately guaranteed, the insertion depth is different, the area of the capacitor with less leads inserted is small, and the welding part is easy to break; 3. although some devices have a pressing process before the welding process to ensure the bonding effect of the lead and the inner joint, such an operation still cannot solve the insertion error caused by human time, and also increases the processes and reduces the processing efficiency.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a high-strength core end cover for a capacitor, a welding device and a welding method thereof, and the specific technical scheme is as follows:
the high-strength core end cover for the capacitor comprises a core main body and an end cover main body, wherein two ends of the core main body are electrically connected with a lead main body; the outer side face of the end cover main body is provided with an outer joint, the inner side face of the end cover main body is provided with an inner joint, a reserved welding groove is formed in the inner part of the inner joint, and the top of the reserved welding groove is of an opening structure;
the lead body is tightly buckled in a fixing tube, the lead body comprises an insulating protection part and an extended contact conductive part, the contact conductive part extends out of the fixing tube, the contact conductive part is embedded in the inner joint, the fixing tube is connected with the end face of the inner joint in a clamping mode, and the fixing tube is used for protecting the connection position of the lead body and the inner joint.
Furthermore, the cross section of the reserved welding groove is of an isosceles trapezoid structure, and two side edges of the isosceles trapezoid structure are of an inward concave arc surface shape.
Furthermore, the fixed pipe comprises a buckling pipe and an outer baffle, the insulating protection part is buckled into the buckling pipe, the outer baffle is arranged at the end part of the buckling pipe, the outer baffle is connected with the inner joint in a clamping manner, the inner side surface of the outer baffle is attached to the end surface of the insulating protection part, a slot with an open top is formed in the outer baffle, and the contact conductive part is embedded into the slot.
The welding device for the high-strength core end cover for the capacitor comprises a moving frame, a station detection mechanism and a welding mechanism; the main board body is arranged between the moving frames;
the surface of the main plate body is provided with a template, one side of the surface of the template is provided with a plurality of first fixing grooves, the other side of the surface of the template is provided with a plurality of second fixing grooves, and the first fixing grooves and the second fixing grooves are relatively positioned at the same center line; the first fixing groove is used for being embedded into the core main body, and the second fixing groove is used for being embedded into the end cover main body;
the middle part of the surface of the template is provided with a sliding chute, the sliding chute is arranged between the first fixing groove and the second fixing groove, and the top of the sliding chute is connected with a sliding plate in a sliding manner; the top surface of the sliding plate is provided with a plurality of fixing pipes at intervals, each core main body corresponds to two fixing pipes, the end part of the lead main body penetrates through the fixing pipes, and the fixing pipes are used for pre-positioning the lead main body; the sliding plate is used for inserting the lead body into the corresponding inner end head.
Furthermore, an assembly groove is formed in the surface of the main plate body, an assembly seat is arranged on the bottom surface of the template, and the assembly seat is embedded into the assembly groove.
A method of welding a high strength core end cap for a capacitor, the method comprising:
s1, welding preparation:
inserting the core main body to be welded into the first fixing groove, buckling the end part of the lead main body into the corresponding fixing tube, and ensuring that the contact conductive part extends out of the fixing tube;
inserting the end cover main body to be welded into the second fixing groove;
the sliding plate drives each lead main body to move, so that each lead main body is elongated, the contact conductive part is inserted into the corresponding reserved welding groove, and the fixed tube and the inner joint are clamped into a whole to form a template to be welded;
repeating the steps to prepare a plurality of templates to be welded;
s2, station detection:
installing a template to be welded on a main board body, and driving the template to be welded to move by the main board body;
the station detection mechanism detects the number of cores on the template to be welded and determines a welding action flow;
and S3, soldering the lead body on the inner contact.
Further, the soldering of the lead body to the inner contact specifically includes: the welding mechanism aims at the reserved welding groove to perform tin soldering operation, molten tin falls into the reserved welding groove until the molten tin is filled in the reserved welding groove, the welding mechanism stops working, the molten tin is solidified into a tin block, and the contact conductive part can be welded together with the reserved conductive groove.
Furthermore, the cross section of the tin block is of an isosceles triangle structure, and the side edge of the isosceles triangle structure is in an inwards concave arc shape.
Further, the welding action flow is determined to be specific;
judging whether an empty fixing groove exists or not;
if yes, the core is not placed in one or more fixing grooves, the position where the core is not placed is recorded, and the welding mechanism does not perform welding operation at the position;
and if not, the core is placed in each fixing groove, and the welding mechanism normally welds at each preset welding position.
The invention has the beneficial effects that:
1. the split type templates are adopted, so that workers can place the core and the end covers on the templates in advance to manufacture a plurality of templates to be welded, when the main board body comes, the templates can be directly placed, the machining efficiency is high, and the welding process does not need to wait;
2. the fixing tube can fix the end parts of the leads, so that the leads are flush, and the conductive parts extending outwards of the leads are flush and reach the standard, so that all the leads can be inserted into the corresponding inner connectors at one time, the insertion depth is ensured, and the insertion efficiency is high; the wire plugging action is completed on the template, the wire plugging action is not required to be performed on welding equipment, and the progress of welding processing is ensured; after the wire is inserted, the fixing tube can be connected with the inner joint into a whole to serve as a protection structure at the welding position of the lead and the inner joint, so that the contact conductive part is prevented from loosening and bending, and the stability of a welding point in processing and using is ensured;
3. the reserved welding groove is in an open trapezoid shape, the two sides of the reserved welding groove are in concave cambered surface structures, the periphery of the inserted contact conductive part can be guaranteed to be collided, the contact conductive part is prevented from being loose, and the adhesion between the contact conductive part and a copper plate in the reserved welding groove is guaranteed, so that a pressing process is omitted; the reserved welding groove can also enable the tin liquid to quickly form a qualified and compact state without turbulent flow.
Drawings
FIG. 1 shows a schematic cross-sectional structure of the connection of the formwork, core and end cap of the present invention;
fig. 2 shows a schematic top view of a cell and end cap of the present invention when unassembled;
fig. 3 shows a schematic top view of the cell and end cap assembly of the present invention;
FIG. 4 shows a schematic view of the sled, fixed tube, and lead attachment configuration of the present invention;
FIG. 5 is a schematic view showing a lead and fixed tube connection configuration of the present invention;
FIG. 6 shows a schematic view of the outer baffle structure of the stationary tube of the present invention;
FIG. 7 shows a schematic view of the lead and internal joint connection structure of the present invention;
FIG. 8 shows an enlarged schematic view of FIG. 3 at A;
FIG. 9 is a schematic view showing the overall construction of the core end cap welding line of the present invention;
shown in the figure: 1. the main plate body, 11, an assembly groove, 2, a template, 21, a first fixing groove, 22, a second fixing groove, 23, a sliding groove, 24, an assembly seat, 3, a core main body, 31, a lead main body, 311, an insulation protection part, 312, a contact conductive part, 4, a fixing pipe, 41, a buckling pipe, 42, an outer baffle, 421, a slot, 5, a sliding plate, 51, a clamping seat, 6, an end cover main body, 61, an inner joint, 611, a reserved welding groove, 62, an outer joint, 7, a moving frame, 8, a station detection mechanism, 9 and a welding mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The high-strength core end cover for the capacitor comprises a core main body 3 and an end cover main body 6, wherein two ends of the core main body 3 are electrically connected with a lead main body 31; an outer joint 62 is arranged on the outer side surface of the end cover main body 6, the outer joint 62 is used for connecting external equipment, an inner joint 61 is arranged on the inner side surface of the end cover main body 6, and the inner joint 61 is used for electrically connecting with the core main body 3;
a reserved welding groove 611 is formed in the inner joint 61, the top of the reserved welding groove 611 is of an open structure, the open structure is used as a welding area of subsequent welding equipment, and the reserved welding groove 611 is an electrical connection area between the inner joint 61 and the lead body 31;
the lead main body 31 is tightly buckled in the fixed tube 4, the lead main body 31 comprises an insulating protection part 311 and an overhanging contact conductive part 312, the insulating protection part 311 is an external insulating sleeve part of the lead main body 31, and the contact conductive part 312 is a copper wire overhanging the insulating sleeve;
the contact conductive part 312 extends out of the fixing tube 4, the contact conductive part 312 is embedded into the reserved welding groove 611, and the contact conductive part 312 is embedded into the reserved welding groove 611, so that the contact conductive part and the reserved welding groove can be soldered together to realize electrical transmission;
the fixing tube 4 is engaged with an end surface of the nipple 61, and the fixing tube 4 protects a joint between the lead body 31 and the nipple 61; fixed pipe 4 can carry on spacingly to lead wire main part 31, avoids the junction to bend in shifting, processing and the use, guarantees that tin soldering department can not fracture, improves the stability of contact point.
As an improvement of the above technical solution, the cross section of the reserved welding groove 611 is an isosceles trapezoid structure, and two side edges of the isosceles trapezoid structure are concave arc surface shaped; the concave structure can enable two sides of the contact conductive part 312 to be clamped and limited by the concave surface and not to loosen towards two sides, and the opening of the top is smaller, so that the contact conductive part 311 can also receive downward supporting force from the top, the contact conductive part 311 cannot loosen upwards, the contact conductive part 311 can be stably embedded into the reserved welding groove 611, the stability of electrical transmission is ensured, and the concave structure can ensure that the contact conductive part 312 is electrically contacted with the reserved welding groove 611 without setting a pressing process when the end cover is welded, and the production steps are simplified; the design of the concave structure can enable molten tin materials to be filled to form a compact and qualified shape in processing, so that the tin soldering effect is improved.
As an improvement of the above technical solution, the fixed pipe 4 includes a fastening pipe 41 and an outer baffle 42, the insulating protection portion 311 is fastened in the fastening pipe 41, the outer baffle 42 is disposed at an end of the fastening pipe 41, the outer baffle 42 is fastened to the inner joint 61, an inner side surface of the outer baffle 42 is attached to an end surface of the insulating protection portion 311, a slot 421 with an open top is formed in the outer baffle 42, and the contact conductive portion 312 is inserted into the slot 421; insulating protection part 311 and outer baffle 42 laminating contact guarantee that lead wire main part 31 when the installation, can not have unnecessary insulating protection part 311 and stretch out in outer baffle 42, slot 421 can fix a position contact conducting part 312 for contact conducting part 312 is more stable when the assembly, realizes contact conducting part 312 and insulating protection part 311 accurate separation.
The welding device for the high-strength core end cover for the capacitor comprises a moving frame 7, a station detection mechanism 8 and a welding mechanism 9; the station detection mechanism 8 is used for detecting stations on the template 2 by using a photoelectric sensor to determine whether each station has a battery cell or not, and the welding mechanism is still working when a vacancy exists on the template; the welding mechanism 9 consists of a wire feeding mechanism and a melting gun head; the movable rack is characterized by further comprising a main board body 1, wherein the main board body 1 is arranged between the movable racks 7; the moving frame 7 is used for driving the welding mechanism 9 to move;
the surface of the main plate body 1 is provided with a template 2, one side of the surface of the template 2 is provided with a plurality of first fixing grooves 21, the other side of the surface of the template 2 is provided with a plurality of second fixing grooves 22, and the first fixing grooves 21 and the second fixing grooves 22 are relatively positioned at the same center line; the first fixing groove 21 and the second fixing groove 22 are distributed in a linear array; the first fixing groove 21 is used for embedding the core main body 3, and the second fixing groove 22 is used for embedding the end cover main body 6; the template 2 and the main plate body 1 are of a separated structure, each core and each cover plate can be pre-installed on the template 2, the lead main body 31 is inserted into the inner joint 61 in advance, the installation time of the core and the cover plate is more abundant, and waiting is not needed during welding;
a sliding groove 23 is formed in the middle of the surface of the template 2, the sliding groove 23 is formed between the first fixing groove 21 and the second fixing groove 22, and the top of the sliding groove 23 is connected with the sliding plate 5 in a sliding mode; the top surface of the sliding plate 5 is provided with a plurality of fixed tubes 4 at intervals, each core main body 3 corresponds to two fixed tubes 4, and the two fixed tubes 4 are used for positioning a positive lead and a negative lead; the end part of the lead body 31 penetrates through the fixing tube 4, and the fixing tube 4 is used for pre-positioning the lead body 31; the sliding plate 5 is used for inserting the lead main body 31 into the corresponding inner end 61; the arrangement of the sliding plate 5 and the fixing tube 4 can quickly position the anode lead and the cathode lead, and the contact conductive parts 312 are inserted into the reserved welding groove 611 accurately at one time, so that the inserting efficiency is high.
As an improvement of the above technical solution, the surface of the main plate body 1 is provided with an assembly groove 11, the bottom surface of the template 2 is provided with an assembly seat 24, and the assembly seat 24 is embedded in the assembly groove 11; the design of the assembling groove 11 and the assembling seat 24 can ensure that the template 2 can be assembled on the proper position on the main board body 1 quickly and accurately.
A method of welding a high strength core end cap for a capacitor, the method comprising:
s1, welding preparation:
inserting the core body 3 to be welded into the first fixing groove 21, buckling the end of the lead body 3 into the corresponding fixing tube 4, and ensuring that the contact conductive part extends out of the fixing tube 4; the step is used for realizing that the core can be stably arranged on the template 2, and each lead body 3 can be arranged at the position to be assembled in advance, so that the assembly precision is ensured; the process is specifically as follows: inserting the core body 3 to be welded into the second fixing groove 22; the fixing tubes 4 are buckled into the clamping seats 51 in advance, the fixing tubes 4 are ensured to be in proper positions, the end parts of the fixing tubes 4 are flush with each other, then two wires are buckled into the corresponding fixing tubes 4 respectively, the insulating protection parts 311 of the wires are embedded into the buckling tubes 41, the contact conductive parts 312 are embedded into the slots 421 in the buckling process, and after the buckling is finished, the positions of the leads are moved, so that the end surfaces of the insulating protection parts 311 are attached to the outer baffle 42, and the contact conductive parts 312 can be ensured to extend completely and have uniform and standard extension lengths; repeating the above operations, and sequentially placing the cores; each lead in this step is in a contracted state;
inserting the end cap body 6 to be welded into the second fixing groove 22; the step is used for pre-placing each end cover, so that the end covers correspond to the cores and the fixed pipes one by one;
a sliding plate 5 is moved, the sliding plate 5 drives each lead body 31 to move, so that each lead body 31 is elongated, the contact conductive part 312 is inserted into the corresponding reserved welding groove 611, and the fixed tube 4 and the inner joint 61 are integrally clamped to form a template to be welded; the step is used for realizing that the lead main body 31 is in contact with the cover plate in advance, and on-site wire insertion and compression are not needed, so that the welding procedure is greatly simplified, and the welding processing efficiency is improved; the method specifically comprises the following steps: the sliding plate 5 is moved, the sliding plate 5 slides to one side of the cover plate along the sliding groove 23, after moving for a certain distance, each contact conductive part 312 enters the corresponding reserved welding groove 611, and the inner wall of the reserved welding groove 611 is of a metal conductive structure; the contact conductive part 312 is embedded into the groove of the reserved welding groove 611, the periphery of the contact conductive part 312 is abutted by the concave structure, when the clamping head moving to the outer baffle 42 is matched with the clamping groove of the inner joint 61, the clamping head stops, at the moment, the fixed pipe 4 and the inner joint are assembled into a whole, and the contact conductive part 312 can enter the designated welding position;
repeating the steps to prepare a plurality of templates to be welded;
s2, station detection:
installing a template to be welded on a main plate body 1, and driving the template to be welded to move by the main plate body 1; a worker places the template to be welded on the main board body 1, and the assembling seat 24 is inserted into the assembling groove 11;
the station detection mechanism 8 detects the number of cores on the template to be welded and determines the welding action flow; the moving frame 7 drives the template to be welded to move, when the template passes through the station detection mechanism 8, a photoelectric sensor is used for detecting whether a first fixing groove 21 and a second fixing groove 22 on the template 2 are empty, and then the fact that no core is placed at the fixing groove is determined;
judging whether an empty fixing groove exists or not;
if yes, the core is not placed in one or more fixing grooves, the position where the core is not placed is recorded, and the welding mechanism does not perform welding operation at the position;
if not, the core is placed in each fixing groove, and the welding mechanism performs normal welding at each preset welding position;
s3, soldering the lead body on the inner joint; during welding, the welding mechanism comprises a wire feeding mechanism, a welding wire melting mechanism and a traveling guide rail, molten tin falls into the reserved welding groove 611 and then wraps the contact conductive part 312, the bottom surface of the inner wall of the reserved welding groove 611 is a copper plate, when the molten tin is solidified, the tin is solidified into a compact and qualified shape, the contact conductive part is fixed on the copper plate by the tin, and the tin, the contact conductive part 312 and the copper plate are in electrical contact;
s4, removing the welded core end cover: the template is taken down from the main board body 1, then the sliding plate 5 is pushed to one side of the core main body, the clamping seat 51 is separated from the fixed pipe 4, the welded core end cover is taken down finally, the fixed pipe 4 is fixed with the inner joint 61, the fixed pipe protects the welding position, the welding spot is prevented from being bent greatly, and the stability of the welding spot in processing and using is ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (7)

1. High strength core end cover for capacitor, its characterized in that: the core comprises a core main body and an end cover main body, wherein two ends of the core main body are electrically connected with a lead main body; the outer side face of the end cover main body is provided with an outer joint, the inner side face of the end cover main body is provided with an inner joint, a reserved welding groove is formed in the inner part of the inner joint, and the top of the reserved welding groove is of an opening structure;
the lead body is tightly buckled in a fixing tube and comprises an insulating protection part and an extended contact conductive part, the contact conductive part extends out of the fixing tube, the contact conductive part is embedded into the reserved welding groove, the fixing tube is connected with the end face of the inner joint in a clamping mode, and the fixing tube is used for protecting the connection position of the lead body and the inner joint;
the section of the reserved welding groove is of an isosceles trapezoid structure, and two side edges of the isosceles trapezoid structure are in an inward concave arc surface shape;
the fixed pipe comprises a buckling pipe and an outer baffle, the insulation protection part is buckled into the buckling pipe, the outer baffle is arranged at the end part of the buckling pipe, the outer baffle is connected with the inner joint in a clamping manner, the inner side surface of the outer baffle is attached to the end surface of the insulation protection part, a slot with an open top is formed in the outer baffle, and the contact conductive part is embedded into the slot.
2. Welding set of high strength core end cover for capacitor, its characterized in that: the high-strength core end cover for the capacitor, which is applied to the capacitor, as claimed in claim 1, wherein the welding device comprises a moving frame, a station detection mechanism and a welding mechanism; the main board body is arranged between the moving frames;
the surface of the main plate body is provided with a template, one side of the surface of the template is provided with a plurality of first fixing grooves, the other side of the surface of the template is provided with a plurality of second fixing grooves, and the first fixing grooves and the second fixing grooves are relatively positioned at the same center line; the first fixing groove is used for being embedded into the core main body, and the second fixing groove is used for being embedded into the end cover main body;
the middle part of the surface of the template is provided with a sliding chute, the sliding chute is arranged between the first fixing groove and the second fixing groove, and the top of the sliding chute is connected with a sliding plate in a sliding manner; the top surface of the sliding plate is provided with a plurality of fixing pipes at intervals, each core main body corresponds to two fixing pipes, the end part of the lead main body penetrates through the fixing pipes, and the fixing pipes are used for pre-positioning the lead main body; the slide plate is used to insert the lead body into the corresponding nipple.
3. The apparatus for welding a high-strength core end cap for capacitors as claimed in claim 2, wherein: the surface of the main plate body is provided with an assembly groove, the bottom surface of the template is provided with an assembly seat, and the assembly seat is embedded into the assembly groove.
4. The welding method of the high-strength core end cover for the capacitor is characterized by comprising the following steps of: a welding device for applying a high-strength core end cap for a capacitor according to claim 3, wherein the welding method comprises:
s1, welding preparation:
inserting the core main body to be welded into the first fixing groove, buckling the end part of the lead main body into the corresponding fixing tube, and ensuring that the contact conductive part extends out of the fixing tube;
inserting the end cover main body to be welded into the second fixing groove;
the sliding plate drives each lead main body to move, so that each lead main body is elongated, the contact conductive part is inserted into the corresponding reserved welding groove, and the fixed tube and the inner joint are clamped into a whole to form a template to be welded;
repeating the steps to prepare a plurality of templates to be welded;
s2, station detection:
installing a template to be welded on a main board body, and driving the template to be welded to move by the main board body;
the station detection mechanism detects the number of cores on the template to be welded and determines a welding action flow;
and S3, soldering the lead body on the inner contact.
5. A method of welding a high strength core end cap for capacitors as claimed in claim 4, wherein: the soldering of the lead main body to the inner joint specifically includes: the welding mechanism aims at the reserved welding groove to perform tin soldering operation, molten tin falls into the reserved welding groove until the molten tin is filled in the reserved welding groove, the welding mechanism stops working, the molten tin is solidified into a tin block, and the contact conductive part can be welded together with the reserved conductive groove.
6. A method of welding a high strength core end cap for capacitors as claimed in claim 5, wherein: the cross section of the tin block is of an isosceles triangle structure, and the side edge of the isosceles triangle structure is of an inwards concave arc shape.
7. A method of welding a high strength core end cap for capacitors as claimed in any one of claims 4 to 6, wherein:
the specific welding action flow is determined;
judging whether an empty fixing groove exists or not;
if yes, the core is not placed in one or more fixing grooves, the position where the core is not placed is recorded, and the welding mechanism does not perform welding operation at the position;
and if not, the core is placed in each fixing groove, and the welding mechanism normally welds at each preset welding position.
CN201910827619.2A 2019-09-03 2019-09-03 High-strength core end cover for capacitor and welding device and welding method thereof Active CN110587182B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910827619.2A CN110587182B (en) 2019-09-03 2019-09-03 High-strength core end cover for capacitor and welding device and welding method thereof

Applications Claiming Priority (1)

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Denomination of invention: High strength core end caps and their welding devices and welding methods for capacitors

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