CN216829051U

CN216829051U - Welding positioning jig

Info

Publication number: CN216829051U
Application number: CN202122764442.1U
Authority: CN
Inventors: 郭系天; 方银; 丁刚
Original assignee: Lanto Electronic Ltd
Current assignee: Lanto Electronic Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-06-28
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses a welding positioning jig which comprises a base, a cover plate covering the base and a heat insulation piece arranged between the base and the cover plate, wherein the base is provided with at least one first through hole, the cover plate is provided with a second through hole corresponding to the first through hole, the first through hole and the second through hole are coaxial, the cover plate is also provided with a through slotted hole, and at least part of the heat insulation piece is exposed in the slotted hole; the base is provided with a fixed groove, the heat insulation piece is arranged in the fixed groove, and the fixed groove corresponds to the slotted hole. So set up, not only make the product accurate positioning, can also solve the fast problem of automatic contact welding type tool heat diffusion effectively, make tin point weld out mellow and smooth solder joint under sufficient temperature condition, improved welding quality.

Description

Welding positioning jig

Technical Field

The utility model relates to a welding positioning jig, and belongs to the field of contact welding of wireless charging series electronic products.

Background

Along with the development of electronic products, the structure and the appearance of the electronic products are greatly improved, the structure of the existing products is complex, and the requirements on the appearance of the products are more precise. If the product is when wireless charging coil circuit board, the link of being qualified for the next round of competitions of wireless coil that charges needs meticulous and stable solder joint to make the product can operate steadily. In the production process, the welding main body and the workpiece to be welded are welded according to a set position, and an ideal welding effect is required to be achieved, namely, a welded welding spot is smooth, and heat loss during welding needs to be controlled on the premise.

Therefore, it is necessary to provide a new welding positioning fixture to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a welding positioning jig for increasing heat insulation materials on a welding contact surface, which effectively retains heat on a welding pad of a welding product aiming at the welding contact surface and enables a tin point to be welded into a round welding point under the condition of sufficient temperature.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a welding positioning jig comprises a base, a cover plate covering the base and a heat insulation piece arranged between the base and the cover plate, wherein the base is provided with at least one first through hole, the cover plate is provided with a second through hole corresponding to the first through hole, the first through hole and the second through hole are coaxial, the cover plate is also provided with a through slot hole, and at least part of the heat insulation piece is exposed in the slot hole; the base is provided with a groove hole, the groove hole is formed in the base, a welding part is arranged on the groove hole, and the welding part is arranged on the side, corresponding to the groove hole, of the heat insulation piece.

As a further improved technical scheme of the utility model, the base is provided with a fixed groove, the heat insulation piece is arranged in the fixed groove, and the fixed groove corresponds to the slotted hole.

As a further improved technical scheme of the utility model, the base is provided with a third through hole formed by continuously sinking from the fixing groove, and the heat insulation piece is provided with a fourth through hole coaxial with the third through hole.

As a further improved technical solution of the present invention, the thickness of the fixing groove is greater than or equal to the thickness of the heat insulation member, and the thickness of the fixing groove is smaller than the thickness of the base.

As a further improved technical scheme of the utility model, the welding positioning jig further comprises at least one fixed block, one end of the fixed block is provided with a through pivot hole, and the cover plate is provided with a pivot part matched with the pivot hole.

As a further improved technical scheme, the other end of the fixing block is provided with a fixing hole, the axial direction of the fixing hole is perpendicular to the axial direction of the pivot hole, the base is fixedly matched with the fixing block through the fixing hole, and the outer side surface of one end, provided with the pivot hole, of the fixing block is in a circular arc shape.

As a further improved technical scheme of the utility model, one end of the cover plate, which is far away from the pivoting part, is provided with an operating part which protrudes outwards and exceeds the base.

As a further improved technical scheme, the welding positioning jig further comprises a handle fixedly connected with the base, and the handle and the operating part are located on the same side or different sides of the welding positioning jig.

As a further improved technical scheme of the utility model, at least one side surface of the base is concavely provided with a groove.

As a further improved technical scheme of the utility model, the cover plate is provided with a positioning groove used for limiting the piece to be welded.

Compared with the prior art, the welding positioning jig has the beneficial effects that: through add the heat insulating part at the welding contact face to on keeping the pad of welding product with the heat effectively, make the solder joint that the tin point welded out the mellow and agreeable solder joint under enough temperature condition, solved the fast problem of automatic contact welding type tool heat diffusion, adopt the structure messenger welding product accurate positioning of the locating hole that corresponds and setting element simultaneously, have advantages such as simple structure, location are accurate, welding quality height.

Drawings

FIG. 1 is a schematic perspective view of a welding fixture according to the present invention;

FIG. 2 is a schematic perspective exploded view of the welding fixture of the present invention at another angle;

FIG. 3 is a perspective view of the base of the present invention;

FIG. 4 is a perspective view of the cover plate of the present invention;

FIG. 5 is a perspective view of a fixing block according to the present invention;

FIG. 6 is a schematic perspective view of the cover plate being opened to place the object to be welded in the present invention;

FIG. 7 is a perspective view of a cover plate in preparation for welding in the practice of the present invention;

FIG. 8 is an enlarged view of a portion of a part to be welded in the practice of the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. If several embodiments exist, the features of these embodiments may be combined with each other without conflict. When the description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The statements made in the following exemplary detailed description do not represent all implementations consistent with the present disclosure; rather, they are merely examples of apparatus, products, and/or methods consistent with certain aspects of the utility model, as set forth in the claims below.

The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention. As used in the specification and claims of this invention, the singular form of "a", "an", or "the" is intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the terms "first," "second," and the like, as used in the description and in the claims of the utility model, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, the terms "front," "back," "up," "down," and the like in the description of the utility model are used for convenience of description and are not limited to a particular position or spatial orientation. The word "comprise" or "comprises", and the like, is an open-ended expression meaning that an element that precedes "includes" or "comprising" includes "that the element that follows" includes "or" comprises "and its equivalents, that do not preclude the element that precedes" includes "or" comprising "from also including other elements. If the utility model is referred to as "a plurality", it means two or more.

Referring to fig. 1 to 8, the present invention discloses a welding positioning fixture 100, which includes a base 1, a cover plate 2 pivotally connected to the base 1, and a heat insulation member 3 mounted on the base. The base 1 is provided with a plurality of first through holes 11, the cover plate 2 is provided with a plurality of second through holes 21, the first through holes 11 and the second through holes 21 can be coaxially corresponding one by one in the vertical direction, the cover plate 2 is further provided with slotted holes 22 penetrating through the cover plate from top to bottom, and at least part of the heat insulation piece 3 is exposed in the slotted holes 22. The base 1 is also provided with two perforations 14. The welding part 80 is sandwiched between the base 1 and the cover plate 2, the welding part 801 of the welding part 80 is disposed on one side of the heat insulation part 3, and the welding part 801 corresponds to the slot 22. In this embodiment, the to-be-welded element 80 is a circuit board with a wireless charging coil, the to-be-welded element 80 includes a coil 802, a coil lead terminal 803 and a circuit board 804, when the to-be-welded element 80 is placed between the base 1 and the cover plate 2, the slot 22 exposes the welding portion 801, and the heat insulation element 3 underlying the to-be-welded element can effectively prevent heat diffusion, so that the positioning element 7 correspondingly locks the coaxial first through hole 11 and the second through hole 21 to fix the to-be-welded element 80. In the present embodiment, the positioning member 7 is provided by a positioning pin, and in other embodiments, other types of locking structures may be adopted, depending on the actual situation.

The base 1 is provided with a fixing groove 12 which is formed by sinking from top to bottom and a third through hole 13 which is continuously sunk from the fixing groove 12 and penetrates through the base 1. The fixing groove 12 does not penetrate the base 1. The heat insulating member 3 is disposed in the fixing groove 12, and the fixing groove 12 corresponds to the groove hole 22. The thickness of the fixing groove 12 extending in the up-down direction is greater than that of the heat insulating member 3, and the thickness of the fixing groove 12 is smaller than that of the base 1. The heat insulator 3 is a composite material made of glass fiber and antistatic high mechanical strength resin. In the present embodiment, the heat insulator 3 is provided with the fourth through hole 30 which is penetrated, the fourth through hole 30 is coaxial with the third through hole 13, and when the heat insulator 3 is mounted in the fixing groove 12, the heat insulator 3 is locked in the fixing groove 12 by inserting a locking member, for example, a positioning pin, into the third through hole 13 through the fourth through hole 30. At least one side surface of the base 1 is concavely provided with a groove 17, and the to-be-welded part 80 is at least partially exposed in the groove 17, so that the to-be-welded part 80 can be conveniently taken out by a user.

It should be noted that the welding positioning fixture 100 provided by the present invention mainly performs thermocompression welding on the local portion of the circuit board that needs to be precisely welded, and thermocompression welding utilizes heating and pressurizing to bond the metal wire and the metal welding area together. The principle is that the metal in the welding area is plastically deformed by heating and pressurizing, and an oxide layer on a pressure welding interface is damaged at the same time. The present invention effectively retains heat to the pads of the soldered product by the provision of the heat insulator 3.

The welding positioning jig 100 further comprises at least one fixing block 4, and a through pivot hole 41 is formed at one end of the fixing block 4 connected with the cover plate 2. The other end of the fixed block 4 connected with the base 1 is provided with a fixed hole 42, and the pivot hole 41 is vertical to the axial direction of the fixed hole 42. The cover plate 2 is provided with a pivoting part 23 matched with the pivoting hole 41, and the outer side surface of one end of the fixing block 4 connected with the cover plate 2 is in an arc shape, so that the cover plate 2 can rotate conveniently. The base 1 is provided with a mounting hole 15 coaxial with the fixing hole 42, and the fixing hole 42 and the mounting hole 15 are locked by a positioning pin, so that the base 1 is fixedly matched with the fixing block 4. The fixed block 4 is correspondingly provided with a locking column 5, the locking column 5 penetrates through the pivoting hole 41 and the pivoting part 23 to achieve fixation, and the cover plate 2 can rotate around the locking column 5 relative to the base 1.

The cover 2 is provided with an operating part 24 protruding outwards beyond the base 1 at the end away from the pivot part 23. With such an arrangement, a user can conveniently lift the cover plate 2 and take out the to-be-welded part 80 after welding. The cover plate 2 is further provided with a positioning groove 25 matched with the to-be-welded part 80, and the positioning groove 25 is used for limiting the to-be-welded part 80.

Welding position tool 100 still includes the handle 6 of fixed connection base 1, and handle 6 and operation portion 24 are located welding position tool 100's homonymy or different sides, and handle 6 is equipped with fixed orifices 61, and base 1 is equipped with the mounting hole 16 coaxial with fixed orifices 61, and accessible screw, setting element etc. are fixed. The concrete conditions are determined according to actual conditions. The handle 6 facilitates accurate positioning of the welding fixture 100 when the welding fixture 100 is subsequently placed on the tool carrier.

Referring to fig. 6 and 7, in the actual operation process of the welding positioning jig 100 of the present invention, firstly, the cover plate 2 is turned upward, the to-be-welded part 80 is placed on the base 1, the positioning hole of the to-be-welded part 80 is aligned with the first through hole 11 or the through hole 14 of the base 1, then the cover plate 2 is covered to press the to-be-welded part 80, the to-be-welded part 80 is fixed by inserting the positioning hole of the to-be-welded part 80 into the positioning hole, then the welding positioning jig 100 with the to-be-welded part 80 fixed is placed on the machine carrier for welding, after the welding is completed, the welding positioning jig 100 is taken down, the positioning part 7 is pulled out, the cover plate 2 is turned open, and the completed welded part can be taken out.

The welding positioning jig 100 effectively keeps heat on a welding pad of a welding product by additionally arranging the heat insulation piece 3 on a welding contact surface, so that a tin point is welded into a round welding spot under the condition of sufficient temperature, the problem of rapid heat diffusion of an automatic contact type welding jig is solved, meanwhile, the welding product is accurately positioned by adopting the structure of the corresponding positioning hole and the positioning piece, and the welding positioning jig has the advantages of simple structure, accurate positioning, high welding quality and the like.

The above embodiments are only for illustrating the utility model and not for limiting the technical solutions described in the utility model, and the understanding of the present specification should be based on the technical personnel in the technical field, and although the present specification has described the utility model in detail by referring to the above embodiments, the technical personnel in the technical field should understand that the technical personnel in the technical field can still make modifications or equivalent substitutions to the present invention, and all the technical solutions and modifications thereof without departing from the spirit and scope of the present invention should be covered in the claims of the present invention.

Claims

1. A welding positioning jig (100), characterized in that: the heat insulation device comprises a base (1), a cover plate (2) covering the base (1) and a heat insulation piece (3) arranged between the base (1) and the cover plate (2), wherein the base (1) is provided with at least one first through hole (11), the cover plate (2) is provided with a second through hole (21) corresponding to the first through hole (11), the first through hole (11) and the second through hole are coaxial, the cover plate (2) is further provided with a through slotted hole (22), and at least part of the heat insulation piece (3) is exposed in the slotted hole (22); wherein a to-be-welded piece (80) is clamped between the base (1) and the cover plate (2), a welding part (801) of the to-be-welded piece (80) is placed on one side of the heat insulation piece (3), and the welding part (801) corresponds to the slotted hole (22).

2. The welding positioning jig (100) of claim 1, characterized in that: be equipped with fixed slot (12) on base (1), heat insulating part (3) set up in fixed slot (12), fixed slot (12) correspond to slotted hole (22).

3. The welding positioning jig (100) of claim 2, characterized in that: the base (1) is provided with a third through hole (13) formed by continuously sinking the fixing groove (12), and the heat insulation piece (3) is provided with a fourth through hole (30) coaxial with the third through hole (13).

4. The welding positioning jig (100) of claim 2, characterized in that: the thickness of the fixing groove (12) is greater than or equal to that of the heat insulation piece (3), and the thickness of the fixing groove (12) is smaller than that of the base (1).

5. The welding positioning jig (100) of claim 1, characterized in that: the welding positioning jig (100) further comprises at least one fixing block (4), a through pivot hole (41) is formed in one end of the fixing block (4), and a pivot portion (23) matched with the pivot hole (41) is formed in the cover plate (2).

6. The welding positioning jig (100) of claim 5, characterized in that: the other end of fixed block (4) is equipped with fixed orifices (42), the axial of fixed orifices (42) is perpendicular the axial of pin joint hole (41), base (1) pass through fixed orifices (42) reach with the fixed cooperation of fixed block (4), fixed block (4) are equipped with the one end outside face of pin joint hole (41) is arc.

7. The welding positioning jig (100) of claim 5, characterized in that: an operating part (24) protruding outwards and exceeding the base (1) is arranged at one end of the cover plate (2) far away from the pivoting part (23).

8. The welding positioning jig (100) of claim 7, characterized in that: the welding positioning jig (100) further comprises a handle (6) fixedly connected with the base (1), and the handle (6) and the operation portion (24) are located on the same side or different sides of the welding positioning jig (100).

9. The welding positioning fixture (100) of claim 1, characterized in that: at least one side surface of the base (1) is concavely provided with a groove (17).

10. The welding positioning jig (100) of claim 1, characterized in that: the cover plate (2) is provided with a positioning groove (25), and the positioning groove (25) is used for limiting the part to be welded (80).