CN210281199U

CN210281199U - Welding tool and welding equipment

Info

Publication number: CN210281199U
Application number: CN201920985550.1U
Authority: CN
Inventors: 程灿
Original assignee: Microport Sorin CRM Shanghai Co Ltd
Current assignee: Microport Sorin CRM Shanghai Co Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-04-10
Anticipated expiration: 2029-06-27

Abstract

The utility model relates to a welding frock and welding equipment aims at guaranteeing the welding quality of adaptor, ensures the reliability of supplying power between battery and external circuit to improve welding efficiency, simplify welding process. The utility model discloses a welding frock includes positioner and supplementary stop device, positioner is used for the clamping battery, supplementary stop device is used for the one end of clamping adaptor and spacing adaptor to make the one end of adaptor keep in appointed position and with the welding of the battery pin that corresponds, do so and make the adaptor can not take place the skew in welding process, thereby guarantee the uniformity of solder joint position, ensure welding quality.

Description

Welding tool and welding equipment

Technical Field

The utility model relates to a welding manufacturing field, concretely relates to welding frock and welding equipment.

Background

At present, a lot of electronic equipment is powered by a built-in battery, and in some electronic equipment, a circuit board is small in size and special in arrangement, battery pins cannot directly supply power to the circuit board, and the battery must be connected to the circuit board through an adapter.

Fig. 1a shows a battery structure of the conventional electronic device as described above. As shown in fig. 1a, the battery comprises a positive terminal 11 and a negative terminal 12, both arranged perpendicular to the battery pin face 13 of the battery 1. In some cases, these battery pins may not directly power the circuit board of the electronic device. Taking an electronic device as an example of a cardiac pacemaker, because the pacemaker is small in size and the circuit board is special in arrangement, the battery pins cannot directly supply power to the circuit board, and the battery pins must be connected to the circuit board through the metal extending filament 2 (metal connecting piece), and the metal extending filament 2 needs to be bent for wiring when being connected to the circuit board. Therefore, each pin needs to be welded with one metal long filament 2, and when the pacemaker works, the two pins respectively supply power to the pacemaker circuit board through the metal long filament 2. Therefore, the welding quality of the metal extended filaments is of great importance. During actual welding, the metal extending filament 2 must be accurately positioned and cannot deviate from a target welding position, otherwise, the welding quality of the metal extending filament is affected, subsequent wire bending and wiring are affected, and finally, connection between a battery and a circuit board is affected, and power supply is affected. However, in the actual welding process, the metal extended filaments 2 are easily displaced. For example, as shown in fig. 1B, when the metal elongate wire 2 is pressed, slippage occurs, such as inward deviation (e.g., state 2B) or outward deviation (e.g., state 2A), consistency of the welding point position of the metal elongate wire 2 cannot be ensured, the welding quality of the metal elongate wire is affected, and finally, power supply between the battery and the circuit board is affected.

Therefore, the adaptor similar to the metal extension wire is easy to deviate when being welded with the battery pin, so that the welding quality is reduced, and the reliability of power supply between the battery and an external circuit is difficult to be effectively ensured.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a welding frock and welding equipment can be when the welding one end of spacing adaptor for the welding end of adaptor can not produce and slide in the horizontal direction, thereby guarantees the uniformity of the solder joint position of adaptor, guarantees the welding quality of adaptor with this, finally guarantees the reliability of supplying power between battery and the external circuit.

In order to achieve the above object, the utility model provides a welding frock for realize the welding between the battery pin of battery and the adaptor, the welding frock includes:

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 as to enable one end of the adapter to be kept at a specified position and be welded with the corresponding battery pin.

Optionally, the auxiliary limiting device comprises:

an auxiliary limiting body; and

the auxiliary limiting structure is arranged on the auxiliary limiting body and used for clamping the adapter and limiting one end of the adapter;

wherein: when the adapter piece is intersected with the corresponding battery pin in the preset direction, the auxiliary limiting structure is aligned with and limits one end of the adapter piece.

Optionally, the auxiliary limiting device further comprises:

the auxiliary positioning structure is arranged on the auxiliary limiting body and 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 is aligned with and limits one end of the adapter.

Optionally, the auxiliary positioning structure includes 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 arranged 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 adaptor to be inserted, and the clamping groove is the auxiliary limiting structure.

Optionally, the number of the card slots is more than two, and the distances between the more than two card slots and the battery pin surface are different; or,

the quantity of draw-in groove is one, just supplementary spacing body can stretch out and draw back and make one the draw-in groove has different distances for battery pin face.

Optionally, an opening is formed at one end of the card slot to allow the adapter to disengage from the opening and/or enter the card slot.

Optionally, the cross-sectional shape of the clamping groove is an 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, the auxiliary limiting body is symmetrically provided with two auxiliary limiting structures.

Optionally, the welding tool further comprises 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 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.

Optionally, the positioning device comprises:

the base is used for clamping the battery; and the number of the first and second groups,

the positioning blocks are arranged on one sides 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 used for positioning the adapter piece so that the adapter piece is intersected with the battery pins in the preset direction.

Optionally, the welding tool further includes:

and the pressing block is arranged on the positioning block to press against the adaptor in the positioning groove.

Optionally, the pressing block is slidable along the positioning groove.

In order to achieve the above object, the utility model also provides a welding equipment for realize the welding between the battery pin of battery and the adaptor, include:

the welding tool is used for clamping the battery and the adapter; and the welding machine is used for welding the adapter on the corresponding battery pin.

The welding tool 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 a target position in the welding process without deviation, the welding quality of the adapter is guaranteed, and the reliability of power supply between the battery and an external circuit is guaranteed. Particularly, the whole welding process does not need operators to manually clamp the adaptor by using tweezers, so that the welding operation process is simplified, and the welding efficiency is improved.

The auxiliary limiting device comprises an auxiliary limiting body and an auxiliary limiting structure, and more preferably further comprises an auxiliary positioning structure, the auxiliary positioning structure preferably comprises a first positioning surface and a second positioning surface, 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. In actual operation, when the adaptor is intersected with the corresponding battery pin in the preset direction, the auxiliary limiting structure can be aligned with and limit one end of the adaptor, so that the welding position precision of the adaptor can be further ensured, and the welding quality is improved.

The second positioning surface is provided with at least one clamping groove, and the clamping groove forms an auxiliary limiting structure. During actual welding, as long as insert the draw-in groove alright realize spacing with the one end of adaptor, it is simple to do limit structure like this, and the clamping is also convenient.

The card slots are preferably two or more and have different distances with respect to the battery pin face. Or, the number of the clamping grooves is only one, but the auxiliary limiting body is of a telescopic structure. By the aid of the auxiliary limiting device, the adaptor at different positions can be limited by the same auxiliary limiting device, different welding requirements are met, and welding cost is further reduced.

Drawings

The accompanying drawings are included to provide a better understanding of the present invention and are not intended to constitute an undue limitation on the invention. Wherein:

FIG. 1a is a schematic structural diagram of a battery pin welding metal extended filament on a battery;

FIG. 1b is a schematic view of a conventional metal extension wire generating slippage;

fig. 2a is a schematic structural view of an auxiliary limiting device according to an embodiment of the present invention;

fig. 2b is a top view of an auxiliary limiting device according to an embodiment of the present invention;

FIG. 2c is an enlarged view of a portion of the auxiliary stop device shown in FIG. 2 b;

fig. 3 is a schematic structural diagram of the auxiliary limiting device for positioning the filamentous adaptor according to an embodiment of the present invention;

fig. 4a is a schematic structural diagram of a welding apparatus according to an embodiment of the present invention, which uses an electric resistance welder to weld a filament adaptor and a positive pin, wherein an auxiliary limiting device is not shown;

FIG. 4b is an enlarged view of a portion of the wire adapter shown in FIG. 4a welded to the positive pin;

fig. 5 is an isometric view of the positioning device and the auxiliary limiting device cooperating to position and clamp the filamentous adaptor at a first viewing angle according to an embodiment of the present invention;

fig. 6 is an isometric view of the filamentous adaptor being positioned and clamped at a second viewing angle, according to an embodiment of the present invention, by the positioning device and the auxiliary limiting device being engaged with each other;

FIG. 7 is a partial enlarged view of the positioning device and the auxiliary limiting device shown in FIG. 6 cooperating to position and clamp the filamentous adaptor;

fig. 8 is a top view of the positioning device and the auxiliary limiting device of an embodiment of the present invention cooperating to position and clamp the filamentous adaptor;

FIG. 9 is a partial enlarged view of the positioning device and the auxiliary limiting device shown in FIG. 8 cooperating to position and clamp the filamentary adapter;

fig. 10 is an isometric view of a second viewing angle at which the positioning device and the auxiliary limiting device cooperate to position and clamp the filamentary adapter according to another embodiment of the present invention;

fig. 11 is a partially enlarged view of the positioning device and the auxiliary limiting device shown in fig. 10, which are matched to realize positioning and clamping of the filamentous adaptor.

In the figure:

1-a battery; 11-positive pin; 12-a negative pin; 2A, 2B-offset position of the metal extended filament;

2-metal extended filaments;

3-a battery; 31-positive pin; 32-negative pin; 33-battery pin face;

4-a filamentous adaptor;

5-a positioning device; 51-a positioning block; 52-positioning grooves; 53-a base; 531-positioning the cavity;

6-auxiliary limiting device; 610-a positioning structure; 61-a first location surface; 62-a second positioning surface; 630-an auxiliary limit structure; 63-card slot; 64-a second opening; 65-a platform;

7-a positive electrode;

9-a negative electrode;

81-a securing mechanism; 82-fixing blocks; 82a, 82 b-vias; and 83-briquetting.

The same reference numbers will be used throughout the drawings to refer to the same or like parts.

Detailed Description

To make the objects, advantages and features of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present 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 "a number of" 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 elongate wire 2 is prone to misalignment when welded to a battery lead (see fig. 1 b). The inventor finds that, because the metal extended filament 2 is thin (the diameter is less than 0.5mm) and long (compared with the diameter), the metal extended filament 2 has certain flexibility, and the pin and the metal extended filament 2 are both cylindrical, so the type of contact between the pin and the cylindrical outer contour of the metal extended filament 2 belongs to point contact, besides, the welding end of the metal extended filament 2 is in a free state, and these factors cause slippage (such as inward shift (such as state 2B) or outward shift (such as state 2A)) in the horizontal direction after the metal extended filament 2 is subjected to electrode pressure in the welding process, therefore, the consistency of the welding point position is not easy to be ensured, and the welding quality of the metal extended filament is affected. In addition, the whole welding process still needs to be manual to use tweezers to clamp the metal extension wire 2, so the welding efficiency is low, and the welding operation is relatively complicated.

In order to overcome the problem that present similar metal prolongs the adaptor of filament and take place the skew easily when welding with the battery pin, the utility model provides a welding frock and welding equipment.

The welding tool and the welding device provided by the present invention will be further described with reference to the accompanying drawings and specific embodiments. In the following description, a filament-shaped adaptor is used as an example for illustration, but the present invention should not be limited thereto, the adaptor of the present invention is not limited to filament-shaped, and the present invention can be applied to the welding tool for limiting/positioning when the adaptor of other shapes is welded to the battery pin of the battery.

As shown in fig. 2 a-2 c, and with reference to fig. 3 to 11, an embodiment of the present invention provides a welding tool, which includes a positioning device 5 (as shown in fig. 6) and an auxiliary limiting device 6, which are matched with each other, so as to clamp the battery 3 and the filamentous adaptor 4. The embodiment of the utility model provides a still provide a welding equipment, including the welding frock and the welding machine of this embodiment. After the clamping of the battery 3 and the wire-shaped adapter 4 is completed, the battery pin on the battery 3 and the wire-shaped adapter 4 are welded by the welding machine. The wire-shaped adaptor 4 of the present embodiment is a metal adaptor for transmitting current and realizing 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 filiform adapter 4 and limiting one end of the filiform adapter 4, so that one end of the filiform adapter 4 is kept at a specified position to be welded with the corresponding battery pin.

In this embodiment, the positioning device 5 is preferably used for positioning 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 with the corresponding battery pins after extending in the predetermined direction, that is, the wire-shaped adaptor 4 is welded with the battery pins at a fixed position without deviating from the predetermined position. After the filamentous adapting piece 4 is positioned by the positioning device 5, the auxiliary limiting device 6 further limits the position of the filamentous adapting piece 4, so that one end of the filamentous adapting piece 4 cannot deviate relative to a battery pin to be welded, the consistency of the welding point position of the filamentous adapting piece is ensured, the welding quality of the filamentous adapting piece is ensured, and the reliability of power supply between the battery 3 and an external circuit is improved.

The welding process of the filamentous adapting piece 4 can be resistance welding, laser welding, tin soldering, and the like, and the utility model discloses do not specifically limit. In addition, the battery 3 of the present invention is applied to electronic devices, including but not limited to implantable active medical devices, and portable electronic devices. The implantable active medical device includes but is not limited to a cardiac pacemaker, and can also be a brain pacemaker, a nerve stimulator, a cochlear implant, a defibrillator and other medical equipment. In the present invention, the battery 3 has battery pins, which include a positive pin 31 and a negative pin 32 (see fig. 5), and these pins are required to be welded with a wire-shaped adaptor 4, so as to supply power to the circuit of the electronic device through the wire-shaped 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-shaped adaptor 4 and the battery pin, but those skilled in the art should be able to modify the following description to apply it to the case other than resistance welding.

In this embodiment, supplementary stop device 6 is used for restricting the degree of freedom of movement of filiform adaptor 4's one end in the horizontal direction among the welding process to make filiform adaptor 4's one end by spacing in the target location and carry out accurate welding with the battery pin, thereby improve filiform adaptor's welding precision, reduce rejection rate and rework rate, and then reduce cost. Also, for convenience of description, the welding of the positive electrode lead 31 is mainly illustrated as an example, but it should be understood that the following description is also applicable to the welding of the negative electrode lead 32.

With reference to fig. 2a to 2c, the auxiliary position-limiting device 6 includes a cylindrical auxiliary position-limiting body (not labeled), but the shape of the auxiliary position-limiting body is not limited by the present invention, and the auxiliary position-limiting body may be a cylinder as shown in fig. 2a, or a cuboid, an elliptical cylinder or a special-shaped cylinder. Meanwhile, the material of the auxiliary limiting body is not limited, and is determined by the actual welding process; when the welding tool is used for resistance welding, the auxiliary limiting body is preferably made of an electrical insulating material, such as engineering Plastics (PC); if the welding tool is used for other welding, such as laser welding, tin welding and the like, the material of the auxiliary limiting body is not limited, and can be a metal material or a non-metal material, the metal material can be an aluminum alloy, the processing is convenient, the non-metal material can be engineering plastics, and 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 a first end of the auxiliary limiting body, and a second end of the auxiliary limiting body is preferably fixedly disposed (i.e., the whole auxiliary limiting device 6 is fixed during use).

In practical applications, the auxiliary positioning structure 610 is used to position the wire-shaped adaptor 4 relative to the positive electrode pin 31, so as to further ensure the welding accuracy of the wire-shaped adaptor 4. Preferably, the auxiliary positioning structure 610 is configured to have a first posture and a second posture relative 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-shaped adaptor 4 can be disposed to intersect with the positive electrode pin 31 in a predetermined direction. In some embodiments, when the auxiliary positioning structure 610 is in the first posture and the second posture, it can be defined that the wire-shaped adaptor 4 perpendicularly intersects the positive electrode pin 31 in the horizontal direction; in some embodiments, when the auxiliary positioning structure 610 is in the first posture and the second posture, the wire-shaped adaptor 4 can be defined to intersect the positive electrode pin 31 in a non-perpendicular direction (or oblique intersection) in the horizontal direction.

Preferably, the first posture includes a first included angle, such as first included angle β (shown in FIG. 3), and the second posture includes a second included angle, such as second included angle α, 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, and the battery 3 further has a battery pin surface 33, and both battery pins vertically penetrate through the battery pin surface 33 to be exposed outside the battery 3 and further welded to the wire-shaped adaptor 4. The end face of the first end of the auxiliary limiting body preferably forms a first positioning surface 61, and a side face adjacent to the first positioning surface 61 and opposite to the filiform adapter 4 forms a second positioning surface 62, and the positioning surfaces are all planes.

Fig. 3 simply shows the structural principle of the second positioning surface 62 and the first positioning surface 61, as shown in fig. 3, the first positioning surface 61 is used for being attached to the battery pin surface 33, the second positioning surface 62 and the first positioning surface 61 have a first included angle β, meanwhile, the normal direction of the second positioning surface 62 and the positive electrode pin 31 have a second included angle α, and if the first included angle β is defined to be equal to the second included angle α, the filiform adaptor 4 can be defined to be arranged in an intersecting manner 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 pin surface 33, and the second positioning surface 62 and the filiform adaptor 4 are also arranged perpendicularly, which is convenient for the welding requirement when the filiform adaptor 4 and the battery pin intersect at different angles after the positioning of the clamping groove 63 on the second positioning surface 62, in this embodiment, the second included angle α may be equal to 90 ° or greater than or smaller than 90 °.

For example, if the second angle α is equal to 90 °, the first angle β is also 90 °, and the wire-like interposer 4 perpendicularly intersects the second positioning surface 62 and the positive electrode pin 31, respectively, and if the second angle α is 60 °, the first angle β is also 60 °, and the wire-like interposer 4 perpendicularly intersects the second positioning surface 62, but is 60 ° with respect to the positive electrode pin 31.

Further, the auxiliary limiting structure 630 is disposed on the auxiliary positioning structure 610, specifically on the second positioning surface 62, and after 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 filamentous adaptor 4. For example, when the wire adaptor 4 vertically intersects the positive electrode pin 31 in the horizontal direction, the auxiliary limiting structure 630 can horizontally align the wire adaptor 4 and limit the wire adaptor 4 from extending beyond one end of the positive electrode pin 31, so that the end of the wire adaptor 4 extending beyond the positive electrode pin 31 cannot move in the horizontal direction. As described above, the wire-shaped adaptor 4 is not limited to perpendicularly intersecting the positive electrode pin 31 in the horizontal direction, and the wire-shaped adaptor 4 may also obliquely intersect the positive electrode pin 31 in the horizontal direction.

In an alternative embodiment, the auxiliary positioning structure 610 may be eliminated and manually adjusted by the operator so that the wire adaptor 4 is perpendicular or oblique to the positive pin 31 in the horizontal direction. Of course, after the auxiliary positioning structure 610 is provided, it is convenient for an operator to position the filament-shaped adaptor 4 relative to the positive electrode pin 31 by referring to the second positioning surface 62, and thus the positioning is more accurate and reliable.

In the embodiment of the present invention, the second positioning surface 62 is provided with at least one slot 63, the slot 63 allows one end of the filamentous adaptor 4 to be inserted, and the slot 63 constitutes the auxiliary limiting structure 630 of this embodiment. In some embodiments, the locking groove 63 may be formed in a direction perpendicular to the second positioning surface 62; in other embodiments, the locking groove 63 may be formed in a direction parallel to the second positioning surface 62 and the first positioning surface 61. Of course, the size of the slot 63 allows one end of the wire-shaped adaptor 4 to be inserted and engaged with the slot, but the insertion manner of the wire-shaped adaptor 4 is not limited, and the wire-shaped adaptor 4 may be inserted into the slot 63 in the horizontal direction or inserted into the slot 63 in the vertical direction. Here, realize spacing of filiform adaptor 4 through draw-in groove 63 block, not only limit structure is simple, and the clamping is also convenient with the dismantlement moreover, can further improve welding efficiency, simplifies the welding operation process.

Further, to facilitate the engagement and disengagement of the filamentary adaptor 4, the cross-section of the slot 63 has a maximum dimension configured to allow an end of the filamentary adaptor 4 to enter the slot 63 and a minimum dimension configured to engage the filamentary adaptor 4. Preferably, the cross section of the clamping groove 63 is isosceles trapezoid, for example, the projection on the plane perpendicular to the second positioning surface 62 and the first positioning surface 61 may be isosceles trapezoid, or the projection 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 filamentous adaptor 4 is conveniently limited in the horizontal direction, and meanwhile, the filamentous adaptor 4 can be conveniently taken out or put in 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 filamentous adaptor 4 in the horizontal direction, so that the filamentous adaptor 4 can be conveniently inserted into the slot 63 from the first opening. The other end of the slot 63 also forms a second opening 64 which is through the first opening, the second opening 64 being aligned with the filamentary adaptor 4 in the vertical direction. As shown in fig. 2a, a second opening 64 is formed at the upper end of the card slot 63, so that it is convenient to take out the entire battery 3 through the second opening 64 after welding, or to load the wire-shaped adaptor 4 through the second opening 64 before welding. The cross-sectional dimension of the second opening 64 should be large enough, but the cross-sectional shape of the second opening 64 is not limited to V-shape, and may be rectangular, semicircular, or irregular, etc.

Therefore, the clamping groove 63 can be used for rapidly limiting one end of the filamentous adapter 4, so that one end of the filamentous adapter 4 is prevented from moving in the horizontal direction, and the phenomenon that the filamentous adapter 4 deviates in the welding process to influence the welding quality is avoided. 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 position of the filamentous 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 first positioning surface 61 also directly limits the distance between the filamentous adaptor 4 and the battery pin surface 13, that is, the welding position of the battery pin is determined, which facilitates to quickly determine the welding position of the battery pin, so that the welding operation is more convenient.

It is further preferred that the bottom of the slot 63 (which is arranged opposite to the wire-shaped adaptor 4, see fig. 2b) is adapted to abut one end of the wire-shaped adaptor 4 extending beyond the positive electrode pin 31, thereby positioning the position where the wire-shaped adaptor 4 is welded to the positive electrode pin 31, i.e. the bottom of the slot 63 is preferably planar and abuts the end of the wire-shaped adaptor 4, thereby defining the welding position of the wire-shaped adaptor 4.

In addition, the cross sectional shape of the slot 63 is not limited to an isosceles trapezoid, but may be a V-shape or an irregular shape as long as the filiform adapter 4 can be conveniently installed and is limited from both sides. In this embodiment, the slot 63 is preferably an isosceles trapezoid, and more preferably, the smallest dimension of the isosceles trapezoid matches the diameter of the filamentous adaptor 4, so as to prevent the filamentous adaptor 4 from being locked and difficult to be taken out. Here, considering that the wire adaptor 4 is generally cylindrical and has a small diameter (generally less than 0.5mm, such as 0.3mm), it is more convenient to operate by limiting the position of the wire adaptor by the slot 63 which is matched with the diameter of the wire adaptor when operating under a microscope. Of course, there are other structures that can realize spacing filiform adaptor 4, and the utility model discloses only enumerate one of them comparatively simple and convenient implementation here, but can not regard as consequently the restriction of the utility model discloses.

Further, in actual operation, the auxiliary limiting device 6 needs to be fixedly arranged, but the fixing mode is not limited, and the auxiliary limiting device can be fixed through an external mechanism or a fixing mechanism of the welding tool.

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 may be detachably locked with a fixing mechanism 81 of the welding tool through a bolt. However, in other embodiments, the second end of the auxiliary limiting body may be provided with an external thread, and the fixing mechanism 81 may be provided with an internal thread, in which case, the second end of the auxiliary limiting body may be screwed with the fixing mechanism 81 to achieve locking. Therefore, the utility model discloses do not do the injecing to the locking mode of the second end of supplementary spacing body.

Further preferably, the distance between the engaging groove 63 and the battery lead surface 33 is adjustable, so as to change the welding position of the battery lead. For example, at least two fixing holes (i.e., fixing points, not shown) are spaced apart from each other on the platform 65, and when the bolts are connected to different fixing holes, the distance between the locking groove 63 and the battery lead surface 33 changes, but it is still necessary to ensure that the first positioning surface 61 is attached to the battery lead surface 33. In one embodiment, the auxiliary limiting body can be stretched to ensure that the first positioning surface 61 is attached to the battery pin surface 33, for example, only the first end of the auxiliary limiting body can be stretched to ensure that the distance between the clamping groove 63 and the battery pin surface 33 is different, so that the welding positions of the filamentous adaptor 4 and the battery pin are changed accordingly, and the auxiliary limiting device can be applied to different welding requirements, thereby improving the application range of the auxiliary limiting device and reducing the welding cost. In an alternative embodiment, at least two slots 63 may be provided on the second positioning surface 62, and these slots 63 are spaced apart from the battery pin surface 33, so that when the wire-shaped adaptor 4 is inserted into different slots 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 retractable, but only one fixing hole is needed. However, when there are at least two card slots 63, the postures of these card slots 63 with respect to the battery pins may be the same or different, and are determined mainly according to the actual welding requirements. Here, the posture of the card slot 63 with respect to the battery pin is different, that is, some card slots 63 can align and limit the filamentous adaptor 4 perpendicularly intersecting with the battery pin, and some card slots 63 can align and limit the filamentous adaptor 4 obliquely intersecting with the battery pin, that is, these card slots can be adapted to different angles when the filamentous adaptor intersects with the battery pin, so that each angle is provided with a corresponding card slot to limit the filamentous adaptor 4.

In the embodiment of the present invention, the positioning device 5 includes 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 adapted to be fitted into the positioning cavity 531, with the battery pin face 33 and the two battery pins exposed. The positioning device 5 further comprises a positioning block 51 arranged on one side of the corresponding battery pin, and a positioning groove 52 parallel to the battery pin surface 33 in the horizontal direction is arranged on the positioning block 51, so that the position and posture of the filamentous adaptor 4 relative to the battery pin surface 33 can be predefined through the positioning groove 52 (for example, the filamentous adaptor 4 is vertically crossed with the battery pin in the horizontal direction), and then the welding end of the filamentous adaptor 4 is limited by the auxiliary limiting device 6, so that the filamentous adaptor 4 can be prevented from deviating in the welding process.

As shown in fig. 5 and 6, the fixing mechanism 81 may include a fixing block 82 for detachably coupling with the second end of the auxiliary limiting body, thereby fixing the auxiliary limiting device 6.

Further, the fixed block 82 is arranged on one side of the base 53 and detachably connected with the base 53, and preferably, the base 53 is in threaded connection with the fixed block 82, 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 position of the auxiliary stopper 6 with respect to the battery lead surface 33. Here, the axes of the two through

holes

82a and 82b are both disposed perpendicularly to the battery lead surface 33, and the auxiliary stopper 6 can be further prevented from being displaced with respect to the battery lead surface 33, thereby improving the positioning accuracy. In addition, the platform 65 is arranged at the second end of the auxiliary limiting body, 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 through the shoulder, and a certain pre-tightening force is provided in the axial direction, so that the first positioning surface 61 is well 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 can be conveniently adjusted.

Referring next to fig. 7 to 9, and fig. 4a and 4b, the wire-shaped adaptor 4 is resistance welded as follows:

before welding, the battery 3 is loaded into 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, so that 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 filamentous adapting piece 4 is manually clamped by tweezers, and the filamentous adapting piece 4 is positioned in the positioning groove 52 and the clamping groove 63; in this step, the filamentous adapting piece 4 can be simultaneously arranged into the clamping groove 63 and the positioning groove 52 from top to bottom, or the filamentous adapting piece 4 can be firstly arranged into the positioning groove 52 from the side surface and then horizontally inserted into the clamping groove 63 forwards; and these operations are all done under a microscope;

as shown in fig. 9, after the wire-shaped adaptor 4 is clamped by the clamping groove 63, the tweezers can be removed, the positive electrode 7 (fig. 4a and 4b) and the negative electrode 9 of the resistance welding machine are used for resistance welding of the wire-shaped adaptor 4, and after the welding is completed, the battery 3 is taken out in the vertical direction. Therefore, any battery pin can be welded in the same operation mode, and welding is very convenient.

Further, as shown in fig. 10 and 11, the welding tool preferably further includes a pressing block 83 disposed on the positioning block 51 to press the wire-shaped adaptor 4, so as to further prevent the wire-shaped adaptor 4 from moving in the vertical direction in the drawing. The pressing block 83 may be formed without being connected to the positioning block 51, and may be pressed by its own weight, for example, a material with a relatively heavy weight is selected to form the pressing block 83, and metal iron may be 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, so that the pressing of different parts of the filamentous adapting piece 4 is realized.

Further, the embodiment of the utility model provides a welding equipment is still provided, including the welding frock and the welding machine of this embodiment. The welding machine can be a laser welding machine, a resistance welding machine or a tin soldering machine. If the welding machine is a resistance welding machine, the resistance welding machine comprises a negative electrode 9 and a positive electrode 7, specifically, the negative electrode 9 is arranged on the lower side of a battery pin, the positive electrode 7 is arranged on the upper side of the battery pin, and resistance welding can be realized when the two electrodes collide with each other. If the laser welding machine is used, the manual welding can be completed only by one pen-type electrode, such as a handheld optical fiber laser welding machine, without configuring a positive electrode and a negative electrode.

Further, the welding frock of this embodiment preferably includes two auxiliary limiting device 6, sets up side by side between two battery pins for accomplish the welded fastening of two battery pins simultaneously. 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, and the manufacturing cost is further reduced.

Finally, the above embodiment describes in detail the manner of limiting/positioning the filamentous adaptor 4 of the welding tool, and of course, the present invention includes but is not limited to the limiting/positioning manner listed in the above embodiment, and any content that is transformed on the basis of the limiting/positioning manner provided by the above embodiment is within the scope of the present invention. One skilled in the art can take the contents of the above embodiments to take a counter-measure.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.

Claims

1. The utility model provides a welding frock for realize the welding between the battery pin of battery and the adaptor, its characterized in that includes:

the positioning device is used for clamping the battery; and

2. The welding tooling of claim 1, wherein the auxiliary limiting device comprises:

an auxiliary limiting body; and

3. The welding tooling of claim 2, wherein the auxiliary limiting device further comprises:

4. The welding tool according to claim 3, 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.

5. The welding tooling of claim 4, wherein 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.

6. The welding tool according to claim 5, wherein the number of the clamping grooves is more than two, and the distances between the more than two clamping grooves and the battery pin surface are different; or,

7. The welding tool of claim 5, wherein an opening is formed at one end of the card slot to allow the adapter to disengage from the opening and/or enter the card slot.

8. The welding tool of claim 5, wherein the cross-sectional shape of the clamping groove is an isosceles trapezoid.

9. The welding tool of claim 5, wherein the bottom of the clamping groove is attached to one end of the adapter to limit the position of the adapter for welding with a corresponding battery pin.

10. The welding tooling of claim 2, wherein the auxiliary limiting body is symmetrically provided with two auxiliary limiting structures.

11. The welding tool of claim 2, further comprising a fixing mechanism, wherein the fixing mechanism is used for fixing the auxiliary limiting device, and the fixing mechanism is detachably connected with the auxiliary limiting body.

12. The welding tool of claim 11, wherein the fixing mechanism comprises a fixing block, a through hole is formed in the fixing block, an axis of the through hole is perpendicular to a battery pin surface of the battery, and one end of the auxiliary limiting body is movably inserted into the through hole.

13. The welding tool of claim 1, wherein the positioning device comprises:

14. The welding tool of claim 13, further comprising:

15. The welding tooling of claim 14, wherein the press block is slidable along the positioning slot.

16. A welding apparatus for effecting welding between a battery pin of a battery and an adapter, comprising:

the welding fixture of any of claims 1-15, configured to clamp the battery and the adapter; and

and the welding machine is used for welding the adapter on the corresponding battery pin.