CN110142559B - Welding tool and welding equipment - Google Patents
Welding tool and welding equipment Download PDFInfo
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- CN110142559B CN110142559B CN201910569185.0A CN201910569185A CN110142559B CN 110142559 B CN110142559 B CN 110142559B CN 201910569185 A CN201910569185 A CN 201910569185A CN 110142559 B CN110142559 B CN 110142559B
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- 238000003466 welding Methods 0.000 title claims abstract description 166
- 230000007246 mechanism Effects 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 10
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- 238000004519 manufacturing process Methods 0.000 description 4
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- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000747 cardiac effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 229920003023 plastic Polymers 0.000 description 1
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Classifications
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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
- 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
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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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
- Y02E60/10—Energy storage using batteries
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention relates to a welding tool and welding equipment, which aim to ensure the welding quality of an adapter, ensure the reliability of power supply between a battery and an external circuit, improve the welding efficiency and simplify the welding process. The welding tool comprises a positioning device and an auxiliary limiting device, wherein the positioning device is used for clamping a battery, the auxiliary limiting device is used for clamping an adapter piece and limiting one end of the adapter piece, so that one end of the adapter piece is kept at a specified position and is welded with a corresponding battery pin, the adapter piece cannot deviate in the welding process, the consistency of the welding spot position is ensured, and the welding quality is ensured.
Description
Technical Field
The invention relates to the field of welding manufacture, in particular to a welding tool and welding equipment.
Background
At present, many electronic devices are powered by a built-in battery, and in some electronic devices, a circuit board is small in size and special in arrangement, a battery pin cannot directly supply power to the circuit board, and the battery must be switched to the circuit board through an adapter.
Fig. 1a is a battery structure of a conventional electronic device as described above. As shown in fig. 1a, the battery comprises a positive pin 11 and a negative pin 12, both of which are arranged perpendicular to the battery lead side 13 of the battery 1. In some cases, these battery pins cannot directly power the circuit board of the electronic device. Taking an electronic device as a cardiac pacemaker as an example, because the pacemaker is small in size and special in circuit board arrangement, battery pins cannot directly supply power to the circuit board, the circuit board must be connected to the circuit board through a metal extension wire 2 (metal adapter), and wire bending wiring is also needed when the metal extension wire 2 is connected to the circuit board. Therefore, each pin needs to be welded with a metal extension wire 2, and when the pacemaker works, the two pins supply power to the pacemaker circuit board through the metal extension wires 2 respectively. Therefore, the welding quality of the metal extension filaments is important. During actual welding, the metal extension filament 2 must be accurately positioned and cannot deviate from the target welding position, otherwise, the welding quality of the metal extension filament is affected, the subsequent bent filament wiring is also affected, and finally the connection between a battery and a circuit board is affected, so that the power supply is affected. However, during the actual welding process, the metal extension wire 2 is easily displaced. For example, as shown in fig. 1B, when the metal filament 2 is pressed, slippage occurs, such as inward deflection (as in state 2B) or outward deflection (as in state 2A), so that consistency of welding spot positions of the metal filament 2 cannot be ensured, welding quality of the metal filament is affected, and power supply between a battery and a circuit board is finally affected.
Therefore, the metal filament-like adapter is easily deviated when being welded with the battery pin, thereby reducing the welding quality and making the reliability of power supply between the battery and an external circuit difficult to be effectively ensured.
Disclosure of Invention
Therefore, the invention aims to provide a welding tool and a welding device, which can limit one end of an adapter during welding, so that the welding end of the adapter cannot slide in the horizontal direction, the consistency of the welding spot position of the adapter is ensured, the welding quality of the adapter is ensured, and finally the reliability of power supply between a battery and an external circuit is ensured.
In order to achieve the above object, the present invention provides a welding tool for realizing welding between a battery pin and an adapter of a battery, the welding tool comprising:
The positioning device is used for clamping the battery; and
And the auxiliary limiting device is used for clamping the adapter and limiting one end of the adapter so that one end of the adapter is kept at a specified position and welded with the corresponding battery pin.
Optionally, the auxiliary limiting device includes:
An auxiliary limit body; and
The auxiliary limiting structure is arranged on the auxiliary limiting body and is used for clamping the adapter and limiting one end of the adapter;
Wherein: when the adapter intersects with the corresponding battery pin in the preset direction, the auxiliary limiting structure is aligned with and limits one end of the adapter.
Optionally, the auxiliary limiting device further includes:
the auxiliary positioning structure is arranged on the auxiliary limiting body and is used for positioning the position of the adapter relative to the corresponding battery pin;
the auxiliary limiting structure is arranged on the auxiliary positioning structure, and after the auxiliary positioning structure is successfully positioned, the auxiliary limiting structure aligns and limits one end of the adapter.
Optionally, the auxiliary positioning structure comprises a first positioning surface and a second positioning surface, the first positioning surface is used for being attached to the battery pin surface of the battery, the second positioning surface is adjacent to the first positioning surface and is opposite to the adapter, and the auxiliary limiting structure is arranged on the second positioning surface.
Optionally, the second positioning surface is provided with at least one clamping groove, the clamping groove allows one end of the adapter to be inserted, and the clamping groove is the auxiliary limiting structure.
Optionally, the number of the clamping grooves is more than two, and distances between the more than two clamping grooves and the battery pin surface are different; or alternatively
The number of the clamping grooves is one, and the auxiliary limiting body can stretch and retract to enable one clamping groove to have different distances relative to the battery pin surface.
Optionally, an opening is formed at one end of the slot to allow the adapter to disengage from the opening and/or enter the slot.
Optionally, the cross section of the clamping groove is isosceles trapezoid.
Optionally, the bottom of the clamping groove is attached to one end of the adapter, so as to limit the welding position of the adapter and the corresponding battery pin.
Optionally, two auxiliary limiting structures are symmetrically arranged on the auxiliary limiting body.
Optionally, the welding fixture further includes a fixing mechanism, the fixing mechanism is used for fixing the auxiliary limiting device, and the fixing mechanism is detachably connected with the auxiliary limiting body.
Optionally, the fixed establishment includes the fixed block, be provided with the through-hole on the fixed block, the axis of through-hole with the battery pin face of battery sets up perpendicularly, just the one end of supplementary spacing body movably inserts the through-hole.
Optionally, the positioning device includes:
the base is used for clamping the battery; and
The positioning blocks are arranged on one side of the corresponding battery pins, and the positioning blocks and the auxiliary limiting devices are arranged on two opposite sides of the same battery pin; the positioning block is provided with a positioning groove which is used for positioning the adapter, so that the adapter is intersected with the battery pins in a preset direction.
Optionally, the welding fixture further includes:
and the pressing block is arranged on the positioning block to press against the adapter in the positioning groove.
Optionally, the press block can slide along the positioning groove.
In order to achieve the above object, the present invention further provides a welding apparatus for welding between a battery pin of a battery and an adapter, comprising:
The welding fixture of any one of the above claims, for clamping the battery and the adaptor; and the welding machine is used for welding the adapter piece on the corresponding battery pin.
The welding fixture realizes the clamping of the battery by means of the positioning device, and simultaneously limits one end (namely the welding end) of the adapter by means of the auxiliary limiting device, so that the adapter can be accurately limited at the target position without deviation in the welding process, the welding quality of the adapter is ensured, and the reliability of power supply between the battery and an external circuit is further ensured. In particular, the whole welding process does not need an operator to clamp the adapter by using tweezers manually, so that the welding operation process is simplified, and the welding efficiency is improved.
Above-mentioned auxiliary limiting device includes auxiliary limiting body and auxiliary limit structure, more preferably still includes auxiliary positioning structure, and auxiliary positioning structure preferably includes first locating surface and second locating surface, the second locating surface with first locating surface is adjacent and set up relatively with the adaptor, and auxiliary limit structure sets up on the second locating surface. During actual operation, when the adapter intersects with the corresponding battery pin in the preset direction, the auxiliary limiting structure can align and limit one end of the adapter, so that the welding position accuracy of the adapter can be further ensured, and the welding quality is improved.
At least one clamping groove is formed in the second positioning surface, and the clamping groove forms an auxiliary limiting structure. During actual welding, limiting can be achieved by inserting one end of the adapter into the clamping groove, and therefore the limiting structure is simple and clamping is convenient.
The number of the engaging grooves is preferably two or more, and the engaging grooves are spaced apart from the battery leg surface differently. Or the clamping groove is only one, but the auxiliary limiting body is of a telescopic structure. In this way, the same auxiliary limiting device can limit the switching pieces at different positions, so that different welding requirements are met, and the welding cost is further reduced.
Drawings
The drawings are included to provide a better understanding of the invention and are not to be construed as unduly limiting the invention. Wherein:
FIG. 1a is a schematic diagram of a battery pin soldered metal extended filament on a battery;
FIG. 1b is a schematic illustration of a prior art metal extension wire slipping;
FIG. 2a is a schematic diagram illustrating an auxiliary limiting device according to an embodiment of the present invention;
FIG. 2b is a top view of an auxiliary stopper according to an embodiment of the present invention;
FIG. 2c is an enlarged view of a portion of the auxiliary stopper shown in FIG. 2 b;
FIG. 3 is a schematic view of an auxiliary stop device positioning wire adapter according to an embodiment of the present invention;
fig. 4a is a schematic structural diagram of a welding apparatus for welding a wire-shaped adaptor and an anode pin by using a resistance welding machine according to an embodiment of the present invention, wherein an auxiliary limiting device is not shown;
FIG. 4b is an enlarged view of a portion of the wire-like adaptor of FIG. 4a welded to the positive pin;
FIG. 5 is an isometric view of a positioning device and an auxiliary limiting device in an embodiment of the present invention, wherein the positioning device and the auxiliary limiting device cooperate to position and clamp a wire-shaped adaptor at a first viewing angle;
FIG. 6 is an isometric view of a positioning device and an auxiliary limiting device in an embodiment of the present invention, wherein the positioning device and the auxiliary limiting device cooperate to position and clamp a wire-shaped adaptor at a second angle of view;
FIG. 7 is an enlarged view of a portion of the positioning device and auxiliary spacing device of FIG. 6 in combination to effect positioning and clamping of the filamentary transition piece;
FIG. 8 is a top view of a positioning device and an auxiliary limiting device in an embodiment of the present invention for positioning and clamping a wire-shaped adaptor;
FIG. 9 is an enlarged view of a portion of the positioning device and auxiliary stop device of FIG. 8 in combination to effect positioning and clamping of the filamentary transition piece;
FIG. 10 is an isometric view of a positioning device and an auxiliary limiting device in accordance with another embodiment of the present invention, wherein the positioning device and the auxiliary limiting device cooperate to position and clamp a wire-like adaptor at a second angle of view;
Fig. 11 is an enlarged view of a portion of the positioning device and auxiliary limiting device shown in fig. 10 in combination to position and clamp the filamentary transition piece.
In the figure:
1-a battery; 11-an anode pin; 12-a negative electrode pin; 2A, 2B-offset position of the metal filaments;
2-metal extension wires;
3-cell; 31-an anode pin; 32-negative electrode pins; 33-battery pin face;
4-wire-like adapters;
5-positioning means; 51-positioning blocks; 52-positioning grooves; 53-base; 531-positioning the cavity;
6-auxiliary limiting device; 610-positioning structure; 61-a first positioning surface; 62-a second locating surface; 630-auxiliary limiting structure; 63-a clamping groove; 64-a second opening; 65-platform;
7-positive electrode;
9-a negative electrode;
81-a fixing mechanism; 82-fixing blocks; 82a, 82 b-through holes; 83-briquetting.
The same reference numbers will be used throughout the drawings to refer to the same or like parts.
Detailed Description
The invention will be further described in detail with reference to the accompanying drawings, in order to make the objects, advantages and features of the invention more apparent. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the content clearly dictates otherwise. As used in this specification and the appended claims, the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise. As used in this specification and the appended claims, the term "plurality" is generally employed in its sense including "one or more than two" unless the content clearly dictates otherwise.
As described in the background, the metal extension wire 2 is easily deviated when being welded with the battery pin (see fig. 1 b). The inventor finds that, because the metal extension wire 2 is thin (the diameter is smaller than 0.5 mm) and long (compared with the diameter), the metal extension wire 2 has certain flexibility, and meanwhile, the pin and the metal extension wire 2 are both cylinders, so that the type of contact between the pin and the cylindrical outline of the metal extension wire 2 belongs to point contact, besides, the welding end of the metal extension wire 2 is in a free state, and the factors cause slippage (such as inward deflection (such as state 2B) or outward deflection (such as state 2A)) in the horizontal direction after the metal extension wire 2 is subjected to electrode pressure in the welding process, so that consistency of the welding point position is not easy to be ensured, and the welding quality of the metal extension wire is affected. In addition, the whole welding process also needs to clamp the metal extension wire 2 by using tweezers manually, so that the welding efficiency is low, and the welding operation is complex.
In order to solve the problem that the existing metal filament-like adapter is easy to deviate when being welded with a battery pin, the invention provides a welding tool and welding equipment.
The welding tool and the welding equipment provided by the invention are further described below with reference to the accompanying drawings and specific embodiments. In the following description, a wire-shaped adaptor is schematically illustrated as an example, but the present invention should not be limited thereto, and the adaptor of the present invention is not limited to a wire shape, and may be limited and positioned by using the welding tool of the present invention only when the adaptor of other shapes is offset during welding with the battery pin of the battery.
As shown in fig. 2a to 2c, and in combination with fig. 3 to 11, the embodiment of the invention provides a welding fixture, which comprises a positioning device 5 (as shown in fig. 6) and an auxiliary limiting device 6, which are mutually matched, so that the clamping of the battery 3 and the wire-shaped adapter 4 is realized. The embodiment of the invention also provides welding equipment, which comprises the welding tool and the welding machine. After the clamping of the battery 3 and the wire-shaped adapter 4 is completed, the welding machine is used for realizing the welding between the battery pin on the battery 3 and the wire-shaped adapter 4. The wire-like adaptor 4 of the present embodiment is a metal adaptor for transmitting electric current to achieve electrical connection between the battery 3 and an external circuit, but the external circuit includes, but is not limited to, a circuit board. In practical application, the positioning device 5 is used for clamping the battery 3, and the auxiliary limiting device 6 is used for clamping the wire-shaped adaptor 4 and limiting one end of the wire-shaped adaptor 4 so that one end of the wire-shaped adaptor 4 is kept at a designated position and welded with a corresponding battery pin.
In this embodiment, the positioning device 5 is preferably used to position the wire-shaped adaptor 4 while clamping the battery 3, so as to define the position of the wire-shaped adaptor 4 relative to the battery pins, so that the wire-shaped adaptor 4 can intersect the corresponding battery pins after extending in a predetermined direction, i.e. the wire-shaped adaptor 4 is welded to the battery pins in a fixed position without deviating from the predetermined position. After the wire-shaped adapter 4 is positioned by the positioning device 5, the auxiliary limiting device 6 further limits the position of the wire-shaped adapter 4, so that one end of the wire-shaped adapter 4 cannot deviate relative to a battery pin to be welded, the consistency of the welding point position of the wire-shaped adapter is ensured, the welding quality of the wire-shaped adapter is ensured, and the reliability of power supply between the battery 3 and an external circuit is improved.
The welding process of the wire-shaped adaptor 4 may be resistance welding, laser welding, soldering, or the like, and the present invention is not particularly limited. Further, the battery 3 of the present invention is applied to electronic devices including, but not limited to, implantable active medical devices, portable electronic devices, and the like. The implantable active medical device includes, but is not limited to, a cardiac pacemaker, but may also be a medical device such as a brain pacemaker, a neurostimulator, a cochlear implant, a defibrillator, etc. In the present invention, the battery 3 has battery pins including a positive pin 31 and a negative pin 32 (see fig. 5), which are each required to be soldered with a wire-like adaptor 4 so as to supply power to the circuit of the aforementioned electronic device through the wire-like adaptor 4.
In the following description, it is assumed that the welding process is resistance welding to further explain that the welding tool and the welding apparatus of the present embodiment easily achieve welding between the wire-type adapter 4 and the battery pin, but those skilled in the art should be able to modify the following description to apply it to a case that is not resistance welding.
In this embodiment, the auxiliary limiting device 6 is used for limiting the movement freedom degree of one end of the wire-shaped adaptor 4 in the horizontal direction in the welding process, so that one end of the wire-shaped adaptor 4 is limited at the target position and is accurately welded with the battery pin, thereby improving the welding precision of the wire-shaped adaptor, reducing the rejection rate and the rework rate, and further reducing the cost. Also, for convenience of description, the welding of the positive electrode pin 31 is mainly described as an illustration, but it should be understood that the following description is equally applicable to the welding of the negative electrode pin 32.
With continued reference to fig. 2a to 2c, the auxiliary limiting device 6 includes a columnar auxiliary limiting body (not labeled), but the shape of the auxiliary limiting body is not limited in the present invention, and the auxiliary limiting body may be a cylinder as shown in fig. 2a, or may be a cuboid, an elliptic cylinder, or a special cylinder. Meanwhile, the material of the auxiliary limit body is not limited, and is determined by an actual welding process; when the welding tool is used for resistance welding, the material of the auxiliary limiting body is preferably an electric insulation material, for example, engineering Plastic (PC); if the welding tool is used for other welding, such as laser welding, soldering welding and the like, the material of the auxiliary limit body is not limited, and can be a metal material or a non-metal material, wherein the metal material can be an aluminum alloy, the processing is convenient, and the non-metal material can be engineering plastics, so that the cost is low.
The auxiliary limiting body is provided with an auxiliary positioning structure 610 and an auxiliary limiting structure 630, wherein the auxiliary positioning structure 610 is optional. In this embodiment, the auxiliary positioning structure 610 and the auxiliary limiting structure 630 are both disposed at the first end of the auxiliary limiting body, and the second end of the auxiliary limiting body is preferably fixedly disposed (i.e. the entire auxiliary limiting device 6 is fixed during use).
In practical application, the auxiliary positioning structure 610 is used for positioning the position of the wire-shaped adaptor 4 relative to the positive electrode pin 31, so as to further ensure the welding precision of the wire-shaped adaptor 4. Preferably, the auxiliary positioning structure 610 is configured to have a first posture and a second posture with respect to the positive electrode pin 31, and when the auxiliary positioning structure 610 is in the first posture and the second posture, it is ensured that the wire-like adaptor 4 can be disposed to intersect the positive electrode pin 31 in a predetermined direction. In some embodiments, when the auxiliary positioning structure 610 is in the first and second attitudes, it can be defined that the wire-like adaptor 4 perpendicularly intersects the positive lead 31 in the horizontal direction; in some embodiments, when the auxiliary positioning structure 610 is in the first and second attitudes, it can be defined that the wire-like adaptor 4 non-perpendicularly intersects (or obliquely intersects) the positive electrode lead 31 in the horizontal direction.
Preferably, the first posture includes a first included angle β (as shown in fig. 3) as described below; the second gesture includes a second included angle, α, as described below, and the first included angle is equal to the second included angle.
In this embodiment, the auxiliary positioning structure 610 includes a first positioning surface 61 and a second positioning surface 62, while the battery 3 further has a battery lead surface 33, and two battery leads vertically pass through the battery lead surface 33 to be exposed outside the battery 3 and further welded with the wire-shaped adapter 4. The end face of the first end of the auxiliary limiting body preferably forms a first positioning surface 61, and a side surface adjacent to the first positioning surface 61 and opposite to the wire-like adapter 4 forms a second positioning surface 62, which are planar.
Fig. 3 shows the principle of construction of the second positioning surface 62 and the first positioning surface 61 in a simplified manner. As shown in fig. 3, the first positioning surface 61 is used for being attached to the battery lead surface 33, the second positioning surface 62 has a first included angle β with the first positioning surface 61, meanwhile, a normal direction of the second positioning surface 62 has a second included angle α with the positive electrode pin 31, if the first included angle β is defined to be equal to the second included angle α, the wire-shaped adaptor 4 can be defined to intersect with the positive electrode pin 31 at the second included angle α, in this case, the positive electrode pin 31 is perpendicular to the battery lead surface 33, and the second positioning surface 62 is also perpendicular to the wire-shaped adaptor 4, so that the positioning of the clamping groove 63 on the second positioning surface 62 can adapt to welding requirements when the wire-shaped adaptor 4 intersects with the battery pin at different angles. In this embodiment, the second included angle α may be equal to 90 ° or may be greater than or less than 90 °.
For example, if the second angle α is equal to 90 °, the first angle β is also 90 °, and the wire-like adaptor 4 perpendicularly intersects the second positioning surface 62 and the positive electrode lead 31, respectively. For example, the second angle α is 60 °, and the first angle β is 60 °, and the wire-like adaptor 4 perpendicularly intersects the second positioning surface 62, but forms an angle of 60 ° with the positive electrode lead 31.
Further, the auxiliary limiting structure 630 is disposed on the auxiliary positioning structure 610, specifically disposed on the second positioning surface 62, and when the auxiliary limiting structure 630 is successfully positioned on the second positioning surface 62, the auxiliary limiting structure 630 can align and limit one end of the wire-shaped adaptor 4. For example, when the wire-like adaptor 4 vertically intersects the positive electrode lead 31 in the horizontal direction, the auxiliary stopper 630 can horizontally align the wire-like adaptor 4 and stop the wire-like adaptor 4 from extending beyond one end of the positive electrode lead 31 so that one end of the wire-like adaptor 4 extending beyond the positive electrode lead 31 cannot move in the horizontal direction. As described above, the wire-like adaptor 4 is not limited to intersecting the positive electrode lead 31 vertically in the horizontal direction, and the wire-like adaptor 4 may intersect the positive electrode lead 31 obliquely in the horizontal direction.
In an alternative embodiment, the auxiliary positioning structure 610 may be eliminated and manually adjusted by the operator such that the wire-like adaptor 4 intersects the positive lead 31 vertically or diagonally in the horizontal direction. Of course, after the auxiliary positioning structure 610 is provided, an operator can conveniently refer to the second positioning surface 62 to position the wire-shaped adaptor 4 relative to the positive electrode pin 31, so that positioning is more accurate and reliable.
In the embodiment of the present invention, the second positioning surface 62 is provided with at least one clamping groove 63, the clamping groove 63 allows one end of the wire-shaped adaptor 4 to be inserted, and the clamping groove 63 forms an auxiliary limiting structure 630 in the embodiment. In some embodiments, the clamping groove 63 may be opened in a direction perpendicular to the second positioning surface 62; in other embodiments, the clamping groove 63 may be further formed in a direction parallel to the second positioning surface 62 and the first positioning surface 61. The size of the locking groove 63 allows one end of the wire-shaped adaptor 4 to be inserted into and engaged with the locking groove, but the insertion mode of the wire-shaped adaptor 4 is not limited, and the wire-shaped adaptor may be inserted into the locking groove 63 in the horizontal direction or may be inserted into the locking groove 63 in the vertical direction. Here, the limiting of the wire-shaped adapter 4 is realized through the clamping of the clamping groove 63, so that the limiting structure is simple, the clamping and the disassembly are convenient, the welding efficiency can be further improved, and the welding operation process is simplified.
Further, to facilitate the engagement and disengagement of the filamentary adaptor 4, the cross-section of the clamping groove 63 has a maximum dimension configured to allow one end of the filamentary adaptor 4 to enter the clamping groove 63 and a minimum dimension configured to be clamped with the filamentary adaptor 4. Preferably, the cross-section of the slot 63 is isosceles trapezoid, for example, the projection of the slot on the plane perpendicular to the second positioning surface 62 and the first positioning surface 61 may be isosceles trapezoid, or the projection of the slot on the plane parallel to the second positioning surface 62 and perpendicular to the first positioning surface 61 may be isosceles trapezoid, so long as the slot is convenient for limiting the wire-shaped adaptor 4 from the horizontal direction, and at the same time, the slot can be conveniently taken out or put in the wire-shaped adaptor 4 from the vertical direction.
In this embodiment, a first opening (not labeled) is formed at one end of the slot 63, and the first opening is aligned with the wire-shaped adaptor 4 in the horizontal direction, so that the wire-shaped adaptor 4 can be conveniently inserted into the slot 63 from the first opening. The other end of the clamping groove 63 is also formed with a second opening 64 penetrating the first opening, and the second opening 64 is aligned with the wire-like adaptor 4 in the vertical direction. As shown in fig. 2a, a second opening 64 is formed at the upper end of the clamping groove 63, so that the whole battery 3 is conveniently taken out through the second opening 64 after welding, or the wire-shaped adapter 4 is conveniently loaded through the second opening 64 before welding. The cross-sectional dimension of the second opening 64 should be sufficiently large, but the cross-sectional shape of the second opening 64 is not limited to V-shape, but may be rectangular, semicircular, or irregular, etc.
Therefore, the clamping groove 63 can rapidly limit one end of the wire-shaped adaptor 4, so that the wire-shaped adaptor 4 is prevented from moving in the horizontal direction, and the wire-shaped adaptor 4 is prevented from shifting in the welding process, and the welding quality is prevented from being influenced. In addition, by arranging the first positioning surface 61 and the second positioning surface 62 and arranging the clamping groove 63 on the second positioning surface 62, the relative positions of the wire-shaped adapter 4 and the battery pins can be conveniently and accurately positioned, and the welding quality is further improved. In addition, the position of the clamping groove 63 on the second positioning surface 62 also directly defines the distance between the wire-shaped adapter 4 and the battery pin surface 13, namely, determines the welding position of the battery pin, so that the welding position of the battery pin can be determined conveniently and quickly, and the welding operation is more convenient.
It is further preferred that the bottom of the clamping groove 63 (see fig. 2b, said bottom being arranged opposite the wire-like adaptor 4) is adapted to engage with an end of the wire-like adaptor 4 extending beyond the positive pin 31, thereby positioning the position where the wire-like adaptor 4 is welded to the positive pin 31, i.e. said bottom of the clamping groove 63 is preferably planar and engages with an end of the wire-like adaptor 4, thereby defining the welding position of the wire-like adaptor 4.
The cross-sectional shape of the locking groove 63 is not limited to an isosceles trapezoid, and may be V-shaped or irregular, as long as it is capable of facilitating insertion and restriction of the wire-like adaptor 4 from both sides. In this embodiment, the clamping groove 63 is preferably an isosceles trapezoid, and more preferably the minimum dimension of the isosceles trapezoid is matched with the diameter of the wire-shaped adaptor 4, so as to prevent the wire-shaped adaptor 4 from being blocked and difficult to take out. Here, considering that the wire-like adaptor 4 is generally cylindrical and has a small diameter (generally less than 0.5mm, e.g., 0.3 mm), the operation is more convenient by limiting through the clamping groove 63 matched with the diameter thereof when the operation under the microscope is performed. Of course, there are other configurations that can implement the spacing wire-like adaptor 4, and the present invention is only one of the simpler implementations herein, but is not limited thereto.
Further, in actual operation, the auxiliary limiting device 6 needs to be fixed, but the fixing mode is not limited, and the auxiliary limiting device may be fixed by an external mechanism or by a fixing mechanism of the welding fixture.
As shown in fig. 2a to 2c, a platform 65 may be disposed at the second end of the auxiliary limiting body, and the platform 65 is detachably locked with a fixing mechanism 81 of the welding tool through bolts. However, in other embodiments, the second end of the auxiliary limiting body may be further provided with an external thread, while the fixing mechanism 81 is provided with an internal thread, and at this time, locking may be achieved by screwing the second end of the auxiliary limiting body with the fixing mechanism 81. Therefore, the locking mode of the second end of the auxiliary limiting body is not limited.
Further preferably, the distance of the clamping groove 63 relative to the battery pin surface 33 can be adjusted to change the welding position of the battery pin. For example, at least two fixing holes (i.e., fixing points, not shown) are spaced apart on the platform 65, and when the bolts are connected to the different fixing holes, the distance between the clamping groove 63 and the battery lead surface 33 is changed accordingly, but it is still required to ensure that the first positioning surface 61 is attached to the battery lead surface 33. In one embodiment, the auxiliary limiting body may be telescopic, so as to ensure that the first positioning surface 61 is attached to the battery lead surface 33, for example, only the first end of the auxiliary limiting body may be telescopic, so that the distance between the clamping groove 63 and the battery lead surface 33 is different, and the welding position of the wire-shaped adapter 4 and the battery pin is changed accordingly, so that the welding requirement is applicable to different welding requirements, the application range of the auxiliary limiting device is improved, and the welding cost is reduced. In an alternative embodiment, at least two clamping grooves 63 may be disposed on the second positioning surface 62 at intervals, and the distances between the clamping grooves 63 and the battery pin surface 33 are different, so that when the wire-shaped adaptor 4 is inserted into the different clamping grooves 63, the welding position of the battery pin is also changed, and at this time, the first end of the auxiliary limiting body does not need to be telescopic, and only one fixing hole is needed. However, when there are at least two card slots 63, the positions of these card slots 63 with respect to the battery pins may be the same or different, and are mainly determined according to actual welding requirements. Here, the different attitudes of the clamping grooves 63 with respect to the battery pins means that some clamping grooves 63 can align and limit the wire-shaped adaptor 4 perpendicularly intersecting the battery pins, and some clamping grooves 63 can align and limit the wire-shaped adaptor 4 obliquely intersecting the battery pins, that is, the clamping grooves can adapt to different angles when the wire-shaped adaptor intersects the battery pins, so that each angle is provided with a corresponding clamping groove to limit the wire-shaped adaptor 4.
In the embodiment of the invention, the positioning device 5 comprises a base 53 for clamping the battery 3. As shown in fig. 4a and 4b, the base 53 has a positioning cavity 531, and the battery 3 is fitted into the positioning cavity 531 with the battery lead surface 33 and the two battery pins exposed. The positioning device 5 further comprises a positioning block 51, the positioning block 51 is disposed at one side of the corresponding battery pin, and a positioning groove 52 parallel to the battery pin surface 33 in the horizontal direction is disposed on the positioning block 51, so that the position and the posture of the wire-shaped adaptor 4 relative to the battery pin surface 33 can be predefined (for example, the wire-shaped adaptor 4 vertically intersects the battery pin in the horizontal direction) through the positioning groove 52, and then the welding end of the wire-shaped adaptor 4 is limited by the auxiliary limiting device 6, so that the wire-shaped adaptor 4 can be prevented from being deviated in the welding process.
As shown in fig. 5 and 6, the fixing mechanism 81 may include a fixing block 82 for detachably connecting with the second end of the auxiliary stopper body, thereby fixing the auxiliary stopper 6.
Further, the fixing block 82 is disposed at one side of the base 53 and detachably connected to the base 53, and preferably, the base 53 and the fixing block 82 are in threaded connection, so that the assembly and disassembly are convenient. The fixing block 82 preferably has two through holes 82a and 82b to allow insertion of one auxiliary stopper 6, respectively, thereby positioning the auxiliary stopper 6 with respect to the battery lead frame 33. Here, the axes of the two through holes 82a and 82b are arranged vertically to the battery lead surface 33, so that the auxiliary limiting device 6 can be further prevented from being deviated relative to the battery lead surface 33, and the positioning accuracy can be improved. In addition, the second end of the auxiliary limiting body is provided with the platform 65, so that a shoulder (not labeled) is formed in the middle of the auxiliary limiting body, the depth of the second end of the auxiliary limiting body inserted into the through hole can be limited by the shoulder, and a certain pretightening force is provided in the axial direction, so that the first positioning surface 61 is better attached to the battery pin surface 33. Preferably, the second end of the auxiliary limiting body is movably inserted into the corresponding through hole, so that the position of the auxiliary limiting body is conveniently adjusted.
Referring next to fig. 7-9, and fig. 4a and 4b, the specific implementation of resistance welding of the filamentary adaptor 4 is as follows:
Firstly, before welding, the battery 3 is arranged in the base 53 of the positioning device 5, so that the positioning and fixing of the battery 3 are completed;
Then, one or two auxiliary limiting devices 6 are arranged between the two battery pins, and the first positioning surface 61 of each auxiliary limiting device 6 is attached to the battery pin surface 33 of the battery 3; in this step, for the same battery pin, the auxiliary limiting device 6 and the positioning block 51 are disposed on opposite sides of the same battery pin, for example, the auxiliary limiting device 6 is disposed on the left side of the positive electrode pin 31, and the positioning block 51 is disposed on the right side;
then the auxiliary limiting device 6 is fixed by means of the fixing mechanism 81;
then, the wire-shaped adapter 4 is manually clamped by forceps, and the wire-shaped adapter 4 is positioned in the positioning groove 52 and the clamping groove 63; in this step, the filament-shaped adaptor 4 may be simultaneously inserted into the clamping groove 63 and the positioning groove 52 from top to bottom, or the filament-shaped adaptor 4 may be first placed into the positioning groove 52 from the side and then horizontally inserted into the clamping groove 63; and these operations are all done under a microscope;
As shown in fig. 9, when the clamping groove 63 clamps the wire-shaped adaptor 4, the tweezers can be removed, the wire-shaped adaptor 4 is subjected to resistance welding by using the positive electrode 7 (fig. 4a and 4 b) and the negative electrode 9 of the resistance welding machine, and after the welding is completed, the battery 3 is taken out along the vertical direction. Therefore, the welding can be completed in the same operation mode for any battery pin, and the welding is very convenient.
Further, as shown in fig. 10 and 11, the welding fixture further preferably includes a pressing block 83 disposed on the positioning block 51 to press the wire-shaped adaptor 4, further preventing the wire-shaped adaptor 4 from moving in the vertical direction in the drawing. The pressing block 83 can be not connected with the positioning block 51, and the pressing can be realized through the gravity of the pressing block, for example, a material with a heavier material is selected to manufacture the pressing block 83, and metal iron is selected. Or the pressing block 83 is detachably fixed on the positioning block 51, but in the actual welding process, the pressing block 83 can be moved back and forth along the positioning groove 52 to realize the pressing of different parts of the wire-shaped adapter 4.
Further, the embodiment of the invention also provides welding equipment, which comprises the welding tool and the welding machine. The welding machine can be a laser welding machine, a resistance welding machine or a tin welding machine. In the case of a resistance welder, the resistance welder comprises a negative electrode 9 and a positive electrode 7, specifically, a negative electrode 9 is arranged at the lower side of a battery pin, and a positive electrode 7 is arranged at the upper side of the battery pin, so that resistance welding can be realized when the two electrodes collide. If the welding machine is a laser welding machine, the manual welding can be finished by only needing one pen-type electrode, such as a handheld optical fiber laser welding machine, without configuring positive and negative electrodes.
Further, the welding fixture of the present embodiment preferably includes two auxiliary limiting devices 6 disposed between two battery pins side by side, for completing the welding fixation of the two battery pins at the same time. Preferably, for the same auxiliary limiting device 6, two auxiliary limiting structures are symmetrically arranged on the auxiliary limiting body, so that welding of two battery pins can be realized by using one auxiliary limiting device 6, and the manufacturing cost is lower. In addition, the auxiliary limiting device 6 can be manufactured through 3D printing, so that the manufacturing cost is further reduced.
Finally, the manner in which the wire-like adaptor 4 is limited to be positioned/positioned by the welding tool in the above embodiment is described in detail, however, the present invention includes, but is not limited to, the manner in which the wire-like adaptor 4 is positioned/positioned in the above embodiment, and any manner of changing the manner in which the wire-like adaptor 4 is positioned/positioned is provided in the above embodiment is within the scope of the present invention. One skilled in the art can recognize that the above embodiments are illustrative.
The above description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.
Claims (14)
1. Welding frock for realize the welding between battery pin and the adaptor of battery, its characterized in that includes:
The positioning device is used for clamping the battery and comprises a base used for clamping the battery and a positioning block used for positioning the adapter; the base is provided with a positioning cavity, and a battery pin surface and a battery pin are exposed after the battery is arranged in the positioning cavity; the positioning block is used for being arranged on one side of the corresponding battery pin; and
The auxiliary limiting device is used for clamping the adapter and limiting one end of the adapter so that one end of the adapter is kept at a specified position and welded with a corresponding battery pin;
The positioning block and the auxiliary limiting device are arranged on two opposite sides of the same battery pin; the positioning block is provided with a positioning groove which is used for positioning the adapter so that the adapter is intersected with the battery pins in a preset direction;
the auxiliary limiting device comprises an auxiliary limiting body and an auxiliary limiting structure arranged on the auxiliary limiting body; the auxiliary limiting structure comprises a clamping groove, wherein the clamping groove is sized to allow one end of the adapter to be inserted into and clamped with the clamping groove, and when the adapter intersects with a corresponding battery pin in a preset direction, the clamping groove is aligned with and limits one end of the adapter.
2. The welding fixture of claim 1, wherein the auxiliary limiting device further comprises:
the auxiliary positioning structure is arranged on the auxiliary limiting body and is used for positioning the position of the adapter relative to the corresponding battery pin;
the auxiliary limiting structure is arranged on the auxiliary positioning structure, and after the auxiliary positioning structure is successfully positioned, the auxiliary limiting structure aligns and limits one end of the adapter.
3. The welding fixture of claim 2, wherein the auxiliary positioning structure comprises a first positioning surface and a second positioning surface, the first positioning surface is used for being attached to a battery pin surface of the battery, the second positioning surface is adjacent to the first positioning surface and is opposite to the adapter, and the auxiliary limiting structure is arranged on the second positioning surface.
4. The welding fixture of claim 3, wherein the second locating surface is provided with at least one clamping groove.
5. The welding fixture of claim 4, wherein the number of clamping grooves is more than two, and distances between the more than two clamping grooves and the battery lead surface are different; or alternatively
The number of the clamping grooves is one, and the auxiliary limiting body can stretch and retract to enable one clamping groove to have different distances relative to the battery pin surface.
6. The welding fixture of claim 4, wherein an opening is formed at one end of the slot to allow the adapter to disengage from the opening and/or enter the slot.
7. The welding fixture of claim 4, wherein the cross-sectional shape of the clamping groove is an isosceles trapezoid.
8. The welding fixture of claim 4, wherein the bottom of the clamping groove is attached to one end of the adapter to limit the welding position of the adapter and the corresponding battery pin.
9. The welding fixture of claim 1, wherein two auxiliary limiting structures are symmetrically arranged on the auxiliary limiting body.
10. The welding fixture of claim 1, further comprising a securing mechanism for securing the auxiliary spacing device, the securing mechanism being detachably connected to the auxiliary spacing body.
11. The welding fixture of claim 10, wherein the fixing mechanism comprises a fixing block, a through hole is formed in the fixing block, the axis of the through hole is perpendicular to the battery pin surface of the battery, and one end of the auxiliary limiting body is movably inserted into the through hole.
12. The welding fixture of claim 1, further comprising:
and the pressing block is arranged on the positioning block to press against the adapter in the positioning groove.
13. The welding fixture of claim 12, wherein the press block is slidable along the positioning slot.
14. A welding apparatus for effecting welding between a battery pin of a battery and an adapter, comprising:
the welding fixture of any one of claims 1-13, for clamping the battery and the adapter; and
And the welding machine is used for welding the adapter piece on the corresponding battery pin.
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