CN114999828B - Sealing device and sealing method for solid electrolyte tantalum capacitor - Google Patents
Sealing device and sealing method for solid electrolyte tantalum capacitor Download PDFInfo
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- CN114999828B CN114999828B CN202210726989.9A CN202210726989A CN114999828B CN 114999828 B CN114999828 B CN 114999828B CN 202210726989 A CN202210726989 A CN 202210726989A CN 114999828 B CN114999828 B CN 114999828B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/08—Housing; Encapsulation
- H01G9/10—Sealing, e.g. of lead-in wires
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Abstract
The invention discloses a sealing device and a sealing method for a solid electrolyte tantalum capacitor, and belongs to the technical field of capacitor production. The device includes base, door shape frame, Z are to lifting unit and controller, be equipped with a plurality of X on the base side by side to translation subassembly, a plurality of all be equipped with anchor clamps on the X is to translation subassembly, the door shape is erect on the base, and the top of door shape frame is equipped with Y to translation subassembly, Z is established on Y to translation subassembly to lifting unit, and is equipped with the seal welding mechanism on the Z is to lifting unit, the controller is established on door shape frame. Two electric irons are arranged in the seal welding mechanism, soldering tin is simultaneously carried out on two sides of the anode lead, molten soldering tin fills the inside of the valve tube along the anode lead and wraps the outer wall of the valve tube, the capacitor is sealed, the sealing quality is ensured, and meanwhile, the capacitor can be sealed without rotating, so that mechanical damage to the capacitor in the seal welding process is avoided. The sealing time can be set, and thermal damage to the capacitor caused by sealing can be avoided.
Description
Technical Field
The invention relates to a sealing device and a sealing method for a solid electrolyte tantalum capacitor, and belongs to the technical field of capacitor production.
Background
At present, the sealing method of the fully-sealed solid electrolyte tantalum capacitor mainly adopts manual soldering iron welding, and in the sealing process, a soldering iron head is pressed against an anode lead of a valveable pipe port of an insulator and a product is rotated, so that soldering tin uniformly wraps the valveable pipe port of the insulator to finish sealing. However, manual soldering requires manual handling of the solid electrolytic tantalum capacitor, and the soldering time is unstable, which is liable to cause mechanical damage or thermal damage to the solid electrolytic tantalum capacitor.
The Chinese patent document with the publication number of CN201997826U discloses a semi-automatic welding device for a capacitor, which comprises a workbench surface, wherein a control device and a support are arranged on the workbench surface, a tin wire hanging frame is arranged on the upper portion of the support, a tin wire is hung on the tin wire hanging frame, a soldering iron fixing frame is fixed below and in front of the support, an electric soldering iron is arranged on the soldering iron fixing frame, a wire feeding device is further fixed on the support, the wire feeding device is connected with a motor, the control device is respectively connected with the motor and the wire feeding device, the tin wire penetrates through the wire feeding device, and one end of the tin wire is contacted with the head of the electric soldering iron through the soldering iron fixing frame. The soldering time and the length of the tin wire can be set through the control device, so that the stability of the soldering quality is ensured, and the operation is simple and convenient.
However, when the capacitor semi-automatic welding device is used for sealing and welding the solid electrolyte tantalum capacitor, the solid electrolyte tantalum capacitor is required to be manually held and rotated, the soldering time is unstable, mechanical damage or thermal damage is easily caused to the solid electrolyte tantalum capacitor, and the sealing and welding efficiency is low.
Disclosure of Invention
In order to solve the technical problems, the invention provides a sealing device and a sealing method for a solid electrolyte tantalum capacitor.
The invention is realized by the following technical scheme:
the utility model provides a solid electrolyte tantalum capacitor closing device, includes base, door shape frame, Z are to lifting unit and controller, be equipped with a plurality of X on the base side by side to translation subassembly, a plurality of all be equipped with anchor clamps on the X is to translation subassembly, the door shape is erect on the base, and the top of door shape frame is equipped with Y to translation subassembly, Z is to lifting unit establishes on Y to translation subassembly, and is equipped with seal welding mechanism on the Z is to lifting unit, the controller is established on door shape frame.
The clamp comprises a bottom plate and clamping plates, wherein the bottom plate is arranged on the X-direction translation assembly, a seat block and two limiting seats are arranged on the bottom plate, a plurality of clamping grooves are formed in one side of the seat block side by side, the two limiting seats are connected with the seat block through a plurality of guide shafts respectively, the clamping plates are located between the seat block and the limiting seats and are in sliding connection with the guide shafts, and elastic pieces are sleeved on the guide shafts between the clamping plates and the limiting seats.
The clamping device is characterized in that a plurality of clamping grooves are formed in the seat block side close to the clamping plate side by side, the clamping grooves are in a V shape, a tightening screw is connected to the clamping plate at the position corresponding to the clamping grooves in a threaded mode, a handle is arranged on the clamping plate side far away from the seat block, a locking screw A is connected to the clamping plate at the position corresponding to the guide shaft in a threaded mode, and the elastic piece is a pressure spring.
The seal welding mechanism comprises a vertical supporting assembly and two sets of seal welding parts, and the two sets of seal welding parts are symmetrically arranged on the vertical supporting assembly.
The seal welding component comprises a pay-off cylinder, a wire feeding component, a welding component and a wire guiding component, wherein the pay-off cylinder, the wire feeding component and the welding component are sequentially arranged on the vertical supporting component from top to bottom, one end of the wire guiding component is connected with the wire feeding component, and the other end of the wire guiding component extends to the vicinity of the welding component and is connected with the welding component through an adjusting bracket.
The wire feeding assembly comprises a box body and a gear, a wire guide wheel A, a wire guide wheel B and a wire guide wheel C are sequentially and movably arranged on the box body from top to bottom, a servo motor is arranged in the box body and is electrically connected with the controller, an output shaft of the servo motor extends out of the box body, the gear is sleeved on the output shaft of the servo motor, and the installation elevation of the gear is identical to that of the wire guide wheel C;
the wire assembly comprises a wire inlet guide pipe and a wire outlet guide pipe, the wire inlet guide pipe is connected with the box body through a clamping block A, one end of the wire outlet guide pipe is connected with one end of the wire inlet guide pipe through a wire guide pipe, and the wire outlet guide pipe is connected with the welding assembly through an adjusting bracket;
the welding assembly comprises an L-shaped mounting plate and an electric soldering iron, an electric cylinder is arranged on the L-shaped mounting plate and is electrically connected with the controller, and the electric soldering iron is connected with an output shaft of the electric cylinder through a clamping block B.
The adjusting support comprises a supporting shaft and a stepped shaft B, wherein the supporting shaft is detachably connected with the L-shaped mounting plate, one end of the supporting shaft is fixedly provided with the stepped shaft A, the stepped shaft B is fixedly connected with an outgoing line guide pipe and is connected with the stepped shaft A through a connecting block, through holes A are formed in positions, corresponding to the stepped shaft A and the stepped shaft B, on the connecting block, two through holes A are communicated through a connecting groove, a notch A is further formed in the connecting block and is communicated with the connecting groove, and locking screws B are connected to two sides of the notch A through threads.
The vertical supporting component comprises a vertical plate and an arc-shaped plate, two transverse shafts are arranged on the vertical plate side by side, one end of each transverse shaft, which is far away from the vertical plate, is in threaded connection with a limit nut, the middle of the arc-shaped plate is connected with the lower end of the vertical plate, and a plurality of groups of threaded holes A are uniformly distributed in the arc-shaped plate.
The sealing method of the solid electrolyte tantalum capacitor sealing device comprises the following main steps:
A. correcting working positions: clamping and fixing the capacitor in a clamp on each X-direction translation assembly, adjusting the position of the sealing and welding mechanism left and right through the Y-direction translation assembly, adjusting the position of the sealing and welding mechanism up and down through the Z-direction lifting assembly, adjusting the position of the clamp back and forth through the X-direction translation assembly until the working ends of two electric soldering irons in the sealing and welding mechanism are contacted with an anode lead of a certain capacitor on the clamp, and setting the three-dimensional coordinate of the sealing and welding mechanism at the moment as a working position;
B. setting process parameters: setting the working temperature, the sealing time and the sealing tin amount of each capacitor of the electric soldering iron through a controller;
C. sealing and welding: after the temperature of the electric soldering iron is raised to 300+/-20 ℃, the sealing and welding mechanism starts to seal and weld the capacitors on one clamp one by one;
D. and (3) cyclic seal welding: after the sealing work and the resetting of all the capacitors on the former clamp are finished, the Y-direction translation assembly drives the sealing mechanism to be aligned with the capacitors on the other clamp, the former clamp moves forwards under the driving of the corresponding X-direction translation assembly, the staff takes out the capacitors which are finished in sealing from the clamp, and the capacitors to be sealed are arranged in the clamp.
In the step A, when the working ends of two electric soldering irons are contacted with the anode lead of a certain capacitor on the clamp, the distance from the working end of the electric soldering iron to the upper end of a valveable tube on the capacitor is 2-5 mm;
the method for sealing and welding the capacitors on one clamp by one by the sealing and welding mechanism in the step C comprises the following main steps:
a. at the moment that the electric soldering iron is contacted with the anode lead of the capacitor positioned at the rear end of the clamp and the sealing and welding mechanism moves to a working position, the wire feeding assembly uniformly conveys tin wires to the corresponding electric soldering iron;
b. at the moment that the former capacitor reaches the set sealing time, the wire feeding assembly stops conveying the tin wire, the sealing mechanism moves upwards to the upper part of the capacitor under the driving of the Z-direction lifting assembly, the clamp moves backwards under the driving of the X-direction translation assembly until the latter capacitor stops when aligned with the sealing mechanism, the sealing mechanism moves downwards to a working position, and the latter capacitor is sealed;
c. and c, repeating the step b, and completing the sealing welding work of all the capacitors on the clamp one by one.
The invention has the beneficial effects that:
1. two electric irons are arranged in the seal welding mechanism, soldering tin is simultaneously carried out on two sides of the anode lead, molten soldering tin fills the inside of the valve tube along the anode lead and wraps the outer wall of the valve tube, the capacitor is sealed, the sealing quality is ensured, and meanwhile, the capacitor can be sealed without rotating, so that mechanical damage to the capacitor in the seal welding process is avoided.
2. The controller is used for setting the sealing time of the capacitor, so that the heat damage to the capacitor caused by sealing is avoided.
3. The capacitor is clamped by the clamp, so that the clamping device has the advantages of simplicity, convenience and rapidness in clamping operation, and can be used for effectively clamping the capacitor in a larger diameter range; the clamp can seal and weld a plurality of capacitors at one time, and the plurality of clamps can alternately clamp the capacitors, so that the sealing device can continuously operate, and the sealing and welding efficiency of the capacitors is high.
4. The lead assembly is used for guiding the tin wire, so that the middle part of the tin wire is prevented from being bent, normal conveying of the tin wire is ensured, and meanwhile, the wire outlet direction of the tin wire is ensured to be stable; in addition, the posture of the outgoing line guide pipe can be flexibly adjusted through the adjusting support, so that the tin wire is contacted with the working end of the electric soldering iron after coming out of the outgoing line guide pipe, and the normal and stable sealing welding process is guaranteed.
5. The arc plate is uniformly provided with a plurality of groups of threaded holes A, the installation angle of the welding assembly can be adjusted as required, and meanwhile, the extension amount of the electric soldering iron can be accurately controlled through the electric cylinder, so that the working end of the electric soldering iron can be contacted with the anode lead of the capacitor, and molten soldering tin can be ensured to enter the inside of the valve tube along the anode lead.
6. According to the specification and the model of the capacitor and the sealing requirement, the sealing time and the sealing tin amount of each capacitor can be adjusted through the controller, so that the practicality is high.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 at another view angle;
FIG. 3 is a schematic view of the structure of the clamp of the present invention;
FIG. 4 is a schematic view of the structure of the seat block of the present invention;
FIG. 5 is a schematic structural view of a seal welding mechanism according to the present invention;
fig. 6 is a schematic diagram of an assembled structure of a wire feed assembly and a wire guide assembly of the present invention;
FIG. 7 is a schematic view of the assembled structure of the welding assembly, the adjustment bracket and the outlet conduit of the present invention;
fig. 8 is a schematic view of an assembly structure of the support shaft and the stepped shaft a of the present invention;
FIG. 9 is a schematic view of the structure of the connecting block of the present invention;
fig. 10 is a schematic structural view of the capacitor of the present invention.
In the figure: 1-base, 2-X-translation assembly, 3-clamp, 300-base plate, 301-seat block, 3010-clamping slot, 302-clamping plate, 303-guide shaft, 304-limit seat, 305-tightening screw, 306-handle, 307-elastic piece, 4-sealing mechanism, 5-Y-translation assembly, 6-Z-lifting assembly, 7-door frame, 8-controller, 9-riser, 10-pay-off drum, 11-wire feeding assembly, 110-box, 111-wire wheel a, 112-wire wheel B, 113-wire wheel C, 114-gear, 12-wire assembly, 120-clamping block a, 121-wire inlet conduit, 122-wire conduit, 123-wire outlet conduit, 13-arc plate, 14-welding assembly, 140-L-shaped mounting plate, 141-electric cylinder, 142-clamping block B, 143-electric soldering iron, 15-adjusting bracket, 150-support shaft, 151-step shaft a, 152-connecting block, 153-step shaft B, 16-capacitor, 160-anode lead, 161-valveable.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the above.
As shown in fig. 1 to 10, the solid electrolyte tantalum capacitor sealing device of the invention comprises a base 1, a door-shaped frame 7, a Z-direction lifting assembly 6 and a controller 8, wherein two X-direction translation assemblies 2 are arranged on the base 1 side by side, clamps 3 are arranged on the two X-direction translation assemblies 2, the door-shaped frame 7 is arranged on the base 1, a Y-direction translation assembly 5 is arranged on the top of the door-shaped frame 7, the Z-direction lifting assembly 6 is arranged on the Y-direction translation assembly 5, a seal welding mechanism 4 is arranged on the Z-direction lifting assembly 6, and the controller 8 is arranged on the door-shaped frame 7. When the device is used, the X-direction translation assembly 2, the Y-direction translation assembly 5 and the Z-direction lifting assembly 6 are all linear motors, and can be selected from Tianyou TMZ17S-C2 series linear motors, and each linear motor is electrically connected with the controller 8; the fixture 3 is arranged on a moving block of the X-direction translation assembly 2, the Z-direction lifting assembly 6 is arranged on a moving block of the Y-direction translation assembly 5, and the seal welding mechanism 4 is arranged on a moving block of the Z-direction lifting assembly 6.
The fixture 3 comprises a bottom plate 300 and a clamping plate 302, the bottom plate 300 is arranged on the X-direction translation assembly 2, a seat block 301 and two limiting seats 304 are arranged on the bottom plate 300, a plurality of clamping grooves 3010 are formed in one side of the seat block 301 in a parallel processing mode, the two limiting seats 304 are respectively connected with the seat block 301 through two guide shafts 303, the clamping plate 302 is located between the seat block 301 and the limiting seats 304 and is in sliding connection with the guide shafts 303, and elastic pieces 307 are sleeved on the guide shafts 303 between the clamping plate 302 and the limiting seats 304.
A plurality of clamping grooves 3010 are formed in the seat block 301 side close to the clamping plate 302 side by side, the clamping grooves 3010 are in a V shape, a jacking screw 305 is connected to the clamping plate 302 at a position corresponding to the clamping grooves 3010 in a threaded mode, a handle 306 is arranged on the clamping plate 302 side far away from the seat block 301, a locking screw A is connected to the clamping plate 302 at a position corresponding to the guide shaft 303 in a threaded mode, and the elastic piece 307 is a pressure spring. The seat block 301 is provided with a plurality of clamping grooves 3010, so that the clamp 3 can clamp a plurality of capacitors 16, and sealing welding of the capacitors 16 can be completed by one clamping, thereby being beneficial to improving sealing welding efficiency of the capacitors 16. The clip groove 3010 has a V-shape, and can be used to hold various types of capacitors 16 having a range of diameters. As shown in fig. 3, when the diameter of the capacitor 16 is relatively large, and after the capacitor 16 is placed in the clamping groove 3010, the outer circumferential surface of the capacitor can extend to the right outside the clamping groove 3010, the clamping plate 302 moves to the left under the action of the pressure spring to be in contact with the outer circumferential surface of the capacitor 16, and is matched with the clamping groove 3010 to clamp and fix the capacitor 16; the clamping process is as follows: the clamping plate 302 is pulled rightward by the handle 306 to move a certain distance, the capacitor 16 is placed in each clamping groove 3010, then the handle 306 is released, and the clamping plate 302 clamps and fixes the capacitor 16 in cooperation with the clamping grooves 3010 under the pushing of the pressure spring. When the diameter of the capacitor 16 is smaller, after the capacitor 16 is placed in the clamping groove 3010, the outer round surface of the capacitor cannot extend rightwards to the outside of the clamping groove 3010, and obviously the capacitor 16 cannot be clamped and fixed through the clamping plate 302 and the clamping groove 3010, at this time, one side surface of the clamping plate 302 is attached to the seat block 301 under the pushing of the pressure spring, the locking screw A is screwed up to prop against the guide shaft 303, so that the clamping plate 302 is fixed, and then each propping screw 305 is sequentially rotated to prop against the corresponding capacitor 16, so that the capacitor 16 is clamped and fixed through the matching of the propping screws 305 and the clamping groove 3010, and the diameter range of the capacitor 16 clamped by the clamp 3 is further widened; during next clamping, the locking screw A is loosened, the clamping plate 302 is pulled rightward by the handle 306 to move a certain distance, after the sealed capacitor 16 is taken out, the capacitor 16 to be sealed is filled into each clamping groove 3010, finally the handle 306 is loosened, and the pressure spring pushes the clamping plate 302 to move leftward, so that the jacking screw 305 props against the corresponding capacitor 16. Therefore, the capacitor 6 is clamped by the clamp 3, so that the clamping device has the advantages of simplicity, convenience and rapidness in clamping operation, and can be used for effectively clamping the capacitor 16 in a larger diameter range; the clamp 3 can seal and weld a plurality of capacitors 16 once, and the plurality of clamps 3 can alternately clamp the capacitors 16, so that the sealing device can continuously operate, and the sealing and welding efficiency of the capacitors 16 is high.
The seal welding mechanism 4 comprises a vertical supporting assembly and two sets of seal welding components, and the two sets of seal welding components are symmetrically arranged on the vertical supporting assembly.
The seal welding component comprises a pay-off barrel 10, a wire feeding component 11, a welding component 14 and a wire component 12, wherein the pay-off barrel 10, the wire feeding component 11 and the welding component 14 are sequentially arranged on the vertical supporting component from top to bottom, one end of the wire component 12 is connected with the wire feeding component 11, and the other end of the wire component extends to the vicinity of the welding component 14 and is connected with the welding component 14 through an adjusting bracket 15.
The wire feeding assembly 11 comprises a box 110 and a gear 114, a wire guide wheel A111, a wire guide wheel B112 and a wire guide wheel C113 are movably mounted on the box 110 from top to bottom in sequence, a servo motor is mounted in the box 110 and is electrically connected with the controller 8, an output shaft of the servo motor extends out of the box 110, the gear 114 is sleeved on the output shaft of the servo motor, and the mounting elevation of the gear 114 is identical to that of the wire guide wheel C113. When in use, the gear 114 and the wire guide wheel C113 are matched to clamp the tin wire, and the servo motor drives the gear 114 to rotate, so that the tin wire can be conveyed.
The wire assembly 12 includes a wire inlet pipe 121 and a wire outlet pipe 123, the wire inlet pipe 121 is connected with the box 110 through a clamping block a120, one end of the wire outlet pipe 123 is connected with one end of the wire inlet pipe 121 through a wire conduit 122, and the wire outlet pipe 123 is connected with the welding assembly 14 through an adjusting bracket 15. When the wire inlet guide pipe 121 and the wire outlet guide pipe 123 are hard pipes in use, the clamping block A120 is fixedly arranged on the box body 110, a through hole B is formed in the clamping block A120 at a position corresponding to the wire inlet guide pipe 121, a notch B is formed in the clamping block A120 and communicated with the through hole B, and a screw is connected to the clamping block A120 at a position corresponding to the notch B in a threaded manner. The wire assembly 12 is used for guiding the tin wire, so that the middle part of the tin wire is prevented from being bent, normal conveying of the tin wire is ensured, and meanwhile, the wire outlet direction of the tin wire is ensured to be stable.
The welding assembly 14 comprises an L-shaped mounting plate 140 and an electric soldering iron 143, an electric cylinder 141 is mounted on the L-shaped mounting plate 140, the electric cylinder 141 is electrically connected with the controller 8, and the electric soldering iron 143 is connected with an output shaft of the electric cylinder 141 through a clamping block B142. When the electric iron is used, the structure of the clamping block B142 is the same as that of the clamping block A120, the electric iron 143 is mounted on the output shaft of the electric cylinder 141, the extension amount of the electric iron 143 can be accurately controlled through the electric cylinder 141, and the working end of the electric iron 143 can be ensured to be in contact with the anode lead 160 of the capacitor 16. The sealing mechanism 4 is provided with two electric soldering irons 143, soldering tin is simultaneously carried out on two sides of the anode lead 160, molten soldering tin fills the inside of the valve tube 161 along the anode lead 160 and wraps the outer wall of the valve tube, the capacitor 16 is sealed, the sealing quality is ensured, and meanwhile, the capacitor 16 is not required to be rotated, so that the capacitor 16 is sealed, and mechanical damage caused to the capacitor 16 in the sealing process is avoided.
The adjusting bracket 15 comprises a supporting shaft 150 and a stepped shaft B153, the supporting shaft 150 is detachably connected with the L-shaped mounting plate 140, one end of the supporting shaft 150 is fixedly welded with a stepped shaft A151, the stepped shaft B153 is fixedly connected with the outlet conduit 123 and is connected with the stepped shaft A151 through a connecting block 152, through holes A are formed in positions, corresponding to the stepped shaft A151 and the stepped shaft B153, on the connecting block 152, through connecting grooves are formed in the two through holes A, a notch A is formed in the connecting block 152 and is communicated with the connecting grooves, and locking screws B are connected to two sides of the notch A in a threaded mode on the connecting block 152. In use, the connection structure of the support shaft 150 and the L-shaped mounting plate 140 is similar to the connection structure of the clamping block a120 and the wire inlet conduit 121, and after loosening the screw for pushing up the support shaft 150, the support shaft 150 can be rotated relative to the L-shaped mounting plate 140; after the locking screw B for locking the stepped shaft A151 is loosened, the connecting block 152 can be rotated relative to the stepped shaft A151; after the locking screw B for locking the stepped shaft B153 is loosened, the stepped shaft B153 may be rotated with respect to the connection block 152; therefore, the posture of the outgoing line guide pipe 123 can be flexibly adjusted by adjusting the bracket 15, so that the tin wire is ensured to be contacted with the working end of the electric soldering iron 143 after coming out of the outgoing line guide pipe 123.
The vertical supporting component comprises a vertical plate 9 and an arc-shaped plate 13, two transverse shafts are arranged on the vertical plate 9 side by side, one end of each transverse shaft, which is far away from the vertical plate 9, is in threaded connection with a limit nut, the middle part of the arc-shaped plate 13 is connected with the lower end of the vertical plate 9, and a plurality of groups of threaded holes A are uniformly distributed and processed on the arc-shaped plate 13. When in use, the paying-off cylinder 10 wound with tin wire is movably sleeved on the transverse shaft and is limited by the limiting nut; the arc 13 is uniformly provided with a plurality of groups of threaded holes A, so that the installation position of the welding assembly 14 on the arc 13 can be conveniently adjusted according to the requirement, and the aim of adjusting the installation angle of the welding assembly 14 is further achieved.
The sealing method of the solid electrolyte tantalum capacitor sealing device comprises the following main steps:
A. correcting working positions: clamping and fixing the capacitors 16 in the clamps 3 on the X-direction translation assemblies 2, adjusting the positions of the sealing and welding mechanisms 4 left and right through the Y-direction translation assemblies 5, adjusting the positions of the sealing and welding mechanisms 4 up and down through the Z-direction lifting assemblies 6, adjusting the positions of the clamps 3 back and forth through the X-direction translation assemblies 2 until the working ends of two electric soldering irons 143 in the sealing and welding mechanisms 4 are contacted with anode leads 160 of one capacitor 16 on the clamps 3, and setting the three-dimensional coordinates of the sealing and welding mechanisms 4 at the moment as working positions; in addition, the position of the electric iron 143 can be adjusted by the electric cylinder 141 during this process.
B. Setting process parameters: setting the working temperature, the sealing time and the sealing tin amount of each capacitor 16 of the electric soldering iron 143 through the controller 8; the controller 8 is used for setting the sealing time of the capacitor 16, so that the capacitor 16 is prevented from being thermally damaged by sealing; after the seal tin amount is determined, the controller 8 automatically calculates the linear speed of the gear 114 and the rotating speed of the servo motor according to the seal welding time and the tin wire diameter.
C. Sealing and welding: after the temperature of the electric iron 143 is raised to 300+/-20 ℃, the sealing and welding mechanism 4 starts to seal and weld the capacitors 16 on one of the clamps 3 one by one; the clamp 3 can realize sealing welding of a plurality of capacitors 16 by one clamping.
D. And (3) cyclic seal welding: after the sealing operation and resetting of all the capacitors 16 on the previous fixture 3 are completed, the Y-direction translation assembly 5 drives the sealing mechanism 4 to align with the capacitors 16 on the other fixture 3, the previous fixture 3 is driven by the corresponding X-direction translation assembly 2 to move forward, and the worker takes out the capacitors 16 after sealing from the fixture 3 and loads the capacitors 16 to be sealed into the fixture 3.
In the step a, when the working ends of the two electric soldering irons 143 are both in contact with the anode lead 160 of a certain capacitor 16 on the fixture 3, the distance from the working end of the electric soldering iron 143 to the upper end of the valveable tube 161 on the capacitor 16 is 2 mm-5 mm; if the distance from the working end of the electric soldering iron 143 to the upper end of the valveable tube 161 is too small, the molten solder may contact the working end of the electric soldering iron 143 when filling the valveable tube 161; if the distance from the working end of the electric iron 143 to the upper end of the valve tube 161 is too large, the molten solder flows into the valve tube 161 along the anode lead 160 for too long, and the temperature and fluidity of the molten solder are significantly lowered, thereby adversely affecting the sealing quality of the capacitor 16.
The method for sealing and welding the capacitors 16 on one of the clamps 3 one by the sealing and welding mechanism 4 in the step C comprises the following main steps:
a. at the moment that the electric soldering iron 143 is in contact with the anode lead 160 of the capacitor 16 positioned at the rear end of the clamp 3 and the sealing and welding mechanism 4 moves to a working position, the wire feeding assembly 11 uniformly conveys tin wires to the corresponding electric soldering iron 143;
b. at the moment that the former capacitor 16 reaches the set sealing time, the wire feeding assembly 11 stops conveying tin wires, the sealing mechanism 4 is driven by the Z-direction lifting assembly 6 to move upwards above the capacitor 16, the clamp 3 is driven by the X-direction translation assembly 2 to move backwards until the latter capacitor 16 stops when aligned with the sealing mechanism 4, the sealing mechanism 4 moves downwards to a working position, and sealing is carried out on the latter capacitor 16;
c. and (c) repeating the step (b) to finish the sealing and welding work of all the capacitors 16 on the clamp 3 one by one.
The sealing device and the sealing method for the solid electrolyte tantalum capacitor have the beneficial effects that:
1. the sealing mechanism 4 is provided with two electric soldering irons 143, soldering tin is simultaneously carried out on two sides of the anode lead 160, molten soldering tin fills the inside of the valve tube 161 along the anode lead 160 and wraps the outer wall of the valve tube, the capacitor 16 is sealed, the sealing quality is ensured, and meanwhile, the capacitor 16 is not required to be rotated, so that the capacitor 16 is sealed, and mechanical damage caused to the capacitor 16 in the sealing process is avoided.
2. The controller 8 sets the sealing time of the capacitor 16, so that thermal damage to the capacitor 16 caused by sealing is avoided.
3. The clamp 3 is used for clamping the capacitor 6, so that the clamping operation is simple, convenient and quick, and the capacitor 16 in a larger diameter range can be effectively clamped; the clamp 3 can seal and weld a plurality of capacitors 16 once, and the plurality of clamps 3 can alternately clamp the capacitors 16, so that the sealing device can continuously operate, and the sealing and welding efficiency of the capacitors 16 is high.
4. The lead assembly 12 is used for guiding the tin wire, so that the middle part of the tin wire is prevented from being bent, normal conveying of the tin wire is ensured, and meanwhile, the outgoing direction of the tin wire is ensured to be stable; in addition, the posture of the outgoing line guide pipe 123 can be flexibly adjusted through the adjusting bracket 15, so that the tin wire is contacted with the working end of the electric soldering iron 143 after coming out of the outgoing line guide pipe 123, and the normal and stable sealing welding process is ensured.
5. The arc 13 is uniformly provided with a plurality of groups of threaded holes A, the installation angle of the welding assembly 14 can be adjusted as required, and meanwhile, the extension amount of the electric soldering iron 143 can be accurately controlled through the electric cylinder 141, so that the working end of the electric soldering iron 143 can be contacted with the anode lead 160 of the capacitor 16, and molten soldering tin can be ensured to enter the inside of the valve tube 161 along the anode lead 160.
6. According to the specification and the type of the capacitor 16 and the sealing requirement, the sealing time and the sealing tin amount of each capacitor 16 can be adjusted through the controller 8, so that the practicability is high.
Claims (6)
1. A solid electrolyte tantalum capacitor sealing device is characterized in that: the device comprises a base (1), a door-shaped frame (7), a Z-direction lifting assembly (6) and a controller (8), wherein a plurality of X-direction translation assemblies (2) are arranged on the base (1) side by side, a plurality of clamps (3) are arranged on the X-direction translation assemblies (2), the door-shaped frame (7) is arranged on the base (1), the top of the door-shaped frame (7) is provided with a Y-direction translation assembly (5), the Z-direction lifting assembly (6) is arranged on the Y-direction translation assembly (5), a seal welding mechanism (4) is arranged on the Z-direction lifting assembly (6), and the controller (8) is arranged on the door-shaped frame (7);
the seal welding mechanism (4) comprises a vertical supporting assembly and two sets of seal welding parts, and the two sets of seal welding parts are symmetrically arranged on the vertical supporting assembly;
the seal welding component comprises a pay-off barrel (10), a wire feeding component (11), a welding component (14) and a wire component (12), wherein the pay-off barrel (10), the wire feeding component (11) and the welding component (14) are sequentially arranged on the vertical supporting component from top to bottom, one end of the wire component (12) is connected with the wire feeding component (11), and the other end of the wire component extends to the vicinity of the welding component (14) and is connected with the welding component (14) through an adjusting bracket (15);
the wire feeding assembly (11) comprises a box body (110) and a gear (114), wherein a wire guide wheel A (111), a wire guide wheel B (112) and a wire guide wheel C (113) are sequentially and movably arranged on the box body (110) from top to bottom, a servo motor is arranged in the box body (110), the servo motor is electrically connected with the controller (8), an output shaft of the servo motor extends out of the box body (110), the gear (114) is sleeved on the output shaft of the servo motor, and the installation height of the gear (114) is the same as that of the wire guide wheel C (113); the wire assembly (12) comprises a wire inlet guide pipe (121) and a wire outlet guide pipe (123), the wire inlet guide pipe (121) is connected with the box body (110) through a clamping block A (120), one end of the wire outlet guide pipe (123) is connected with one end of the wire inlet guide pipe (121) through a wire guide pipe (122), and the wire outlet guide pipe (123) is connected with the welding assembly (14) through an adjusting bracket (15);
the welding assembly (14) comprises an L-shaped mounting plate (140) and an electric soldering iron (143), an electric cylinder (141) is arranged on the L-shaped mounting plate (140), the electric cylinder (141) is electrically connected with the controller (8), and the electric soldering iron (143) is connected with an output shaft of the electric cylinder (141) through a clamping block B (142);
the adjusting support (15) comprises a supporting shaft (150) and a stepped shaft B (153), the supporting shaft (150) is detachably connected with the L-shaped mounting plate (140), one end of the supporting shaft (150) is fixedly provided with the stepped shaft A (151), the stepped shaft B (153) is fixedly connected with the outgoing line guide pipe (123) and is connected with the stepped shaft A (151) through a connecting block (152), through holes A are formed in the connecting block (152) at positions corresponding to the stepped shaft A (151) and the stepped shaft B (153), two through holes A are communicated through a connecting groove, a notch A is further formed in the connecting block (152) and is communicated with the connecting groove, and locking screws B are connected to two sides of the notch A in a threaded mode.
2. The solid electrolyte tantalum capacitor sealing device according to claim 1, wherein: the fixture (3) comprises a bottom plate (300) and clamping plates (302), the bottom plate (300) is arranged on the X-direction translation assembly (2), a seat block (301) and two limiting seats (304) are arranged on the bottom plate (300), a plurality of clamping grooves (3010) are formed in one side of the seat block (301) side by side, the two limiting seats (304) are connected with the seat block (301) through a plurality of guide shafts (303) respectively, the clamping plates (302) are located between the seat block (301) and the limiting seats (304) and are in sliding connection with the guide shafts (303), and elastic pieces (307) are sleeved on the guide shafts (303) between the clamping plates (302) and the limiting seats (304).
3. The solid electrolyte tantalum capacitor sealing device according to claim 2, wherein: a plurality of clamping grooves (3010) are arranged on one side, close to the clamping plate (302), of the seat block (301) in parallel, and the clamping grooves (3010) are V-shaped; the clamping plate (302) is in threaded connection with a jacking screw (305) at a position corresponding to the clamping groove (3010), and a handle (306) is arranged on one side, away from the seat block (301), of the clamping plate (302); the clamping plate (302) is in threaded connection with a locking screw A at a position corresponding to the guide shaft (303); the elastic member (307) is a compression spring.
4. The solid electrolyte tantalum capacitor sealing device according to claim 1, wherein: the vertical supporting assembly comprises a vertical plate (9) and an arc plate (13), two transverse shafts are arranged on the vertical plate (9) side by side, one end of each transverse shaft, which is far away from the vertical plate (9), is connected with a limit nut in a threaded manner, the middle of the arc plate (13) is connected with the lower end of the vertical plate (9), and a plurality of groups of threaded holes A are uniformly distributed on the arc plate (13).
5. The sealing method of the solid electrolyte tantalum capacitor sealing device according to claim 1, wherein: the method comprises the following main steps:
A. correcting working positions: clamping and fixing the capacitors (16) in the clamps (3) on the X-direction translation assemblies (2), adjusting the positions of the sealing and welding mechanisms (4) left and right through the Y-direction translation assemblies (5), adjusting the positions of the sealing and welding mechanisms (4) up and down through the Z-direction lifting assemblies (6), adjusting the positions of the clamps (3) front and back through the X-direction translation assemblies (2) until the working ends of two electric soldering irons (143) in the sealing and welding mechanisms (4) are contacted with anode leads (160) of one capacitor (16) on the clamps (3), and setting the three-dimensional coordinates of the sealing and welding mechanisms (4) to be working positions at the moment;
B. setting process parameters: setting the working temperature, the sealing time and the sealing tin amount of each capacitor (16) of the electric soldering iron (143) through the controller (8);
C. sealing and welding: after the temperature of the electric soldering iron (143) is raised to 300+/-20 ℃, the sealing mechanism (4) starts to seal the capacitors (16) on one of the clamps (3) one by one;
D. and (3) cyclic seal welding: after the sealing operation and the resetting of all the capacitors (16) on the previous clamp (3) are finished, the Y-direction translation assembly (5) drives the sealing mechanism (4) to align with the capacitors (16) on the other clamp (3), the previous clamp (3) moves forwards under the driving of the corresponding X-direction translation assembly (2), the staff takes out the capacitors (16) which are finished in sealing from the clamp (3), and the capacitors (16) to be sealed are loaded into the clamp (3).
6. The sealing method of the solid electrolyte tantalum capacitor sealing device according to claim 5, wherein: in the step A, when the working ends of two electric soldering irons (143) are contacted with an anode lead (160) of a certain capacitor (16) on a clamp (3), the distance from the working end of the electric soldering iron (143) to the upper end of a valveable tube (161) on the capacitor (16) is 2-5 mm;
the method for sealing and welding the capacitors (16) on one clamp (3) one by the sealing and welding mechanism (4) in the step C comprises the following main steps:
a. at the moment that the electric soldering iron (143) is in contact with the anode lead (160) of the capacitor (16) positioned at the rear end of the clamp (3) and the sealing and welding mechanism (4) moves to a working position, the wire feeding assembly (11) uniformly conveys tin wires to the corresponding electric soldering iron (143);
b. at the moment that the former capacitor (16) reaches the set sealing time, the wire feeding assembly (11) stops conveying tin wires, the sealing mechanism (4) moves upwards to the upper part of the capacitor (16) under the driving of the Z-direction lifting assembly (6), the clamp (3) moves backwards under the driving of the X-direction translation assembly (2) until the latter capacitor (16) stops when aligned with the sealing mechanism (4), the sealing mechanism (4) moves downwards to a working position, and sealing is carried out on the latter capacitor (16);
c. and (c) repeating the step (b) to finish the sealing welding work of all the capacitors (16) on the clamp (3) one by one.
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| CN202210726989.9A CN114999828B (en) | 2022-06-24 | 2022-06-24 | Sealing device and sealing method for solid electrolyte tantalum capacitor |
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| CN202210726989.9A CN114999828B (en) | 2022-06-24 | 2022-06-24 | Sealing device and sealing method for solid electrolyte tantalum capacitor |
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| CN114999828B true CN114999828B (en) | 2023-06-02 |
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| CN114999828A (en) | 2022-09-02 |
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