CN108453337B

CN108453337B - Welding jig and welding method thereof

Info

Publication number: CN108453337B
Application number: CN201810184421.2A
Authority: CN
Inventors: 申猛
Original assignee: Asia Vital Components Co Ltd
Current assignee: Asia Vital Components Co Ltd
Priority date: 2018-03-06
Filing date: 2018-03-06
Publication date: 2022-01-11
Anticipated expiration: 2038-03-06
Also published as: CN108453337A

Abstract

The invention provides a welding jig and a welding method thereof, wherein a substrate is provided with a welding area and at least one positioning area, the positioning area is provided with a positioning piece, a welded object is placed on the substrate, the welded object is positioned through the positioning piece, an insulating paint layer of the welded object is removed by utilizing a heating means, a welding flux is placed on the welding area of the substrate, then the welding flux is melted, and the welded object is welded on the welding area through the welding flux.

Description

Welding jig and welding method thereof

Technical Field

The invention relates to a welding jig and a welding method thereof, in particular to a welding jig applied to an enameled wire and a welding method thereof.

Background

A soldering process is widely used in various fields, and aims to fix an object to be soldered to another object by solder, and when soldering such as an enameled wire is manually performed, a soldering person needs to hold a soldering iron with one hand and hold a tin wire with the other hand or fix the object to be soldered.

When manual welding is carried out, the following defects are caused:

1. the technical requirements on welding personnel are high, and the welding personnel can have good performance only after being trained professionally;

2. the problem of breakage of the enameled wire easily occurs in manual welding;

3. the welding part is easy to have defects, such as open circuit, poor contact or overlarge impedance;

4. the specifications of the welding positions cannot be unified, and if the height is too high, the welding positions interfere with other components;

5. the efficiency is low.

Therefore, how to solve the above problems and disadvantages is a direction in which the present inventors and related manufacturers in the industry need to research and improve.

Disclosure of Invention

Therefore, in order to effectively solve the above problems, the present invention provides a welding jig and a welding method that reduce the technical requirements of operators.

Another objective of the present invention is to provide a welding jig and a welding method for avoiding the problem of breaking the enameled wire.

Another objective of the present invention is to provide a welding jig and a welding method for avoiding poor welding.

Another objective of the present invention is to provide a welding jig and a welding method for unifying specifications of welded parts and facilitating subsequent operations.

Another objective of the present invention is to provide a welding jig and a welding method for improving overall efficiency.

To achieve the above object, the present invention provides a welding jig, which comprises:

a substrate having a bonding pad and at least one positioning region located outside the bonding pad;

at least one positioning piece is arranged in the positioning area to position a welded object, wherein the welded object is placed on the welding area and the positioning area and is provided with a welding part corresponding to the welding area and at least one non-welding part corresponding to the positioning area.

The welding jig, wherein: the outer edge of the substrate is provided with a ring wall, and the positioning area is provided with a first protruding groove protruding out of the ring wall.

The welding jig, wherein: the positioning area is provided with a second protruding groove protruding out of the annular wall, and the second protruding groove and the first protruding groove are positioned on a straight line.

The welding jig, wherein: the positioning member is a double-sided tape or adhesive.

The welding jig, wherein: the object to be welded is an enameled wire.

The invention also provides a welding method, which is characterized by comprising the following steps:

providing a substrate having a welding area and at least one positioning area, wherein the positioning area has a positioning piece;

placing a welded object on the substrate;

positioning the welded object through the positioning piece;

removing an insulating paint layer of the object to be welded by a heating means;

placing a solder on the welding area of the substrate, melting the solder, and welding the object to be welded on the welding area through the solder.

The welding method further comprises the following steps: a bonding portion of the object to be bonded corresponds to the bonding area of the substrate.

The welding method further comprises the following steps: a non-welding part of the welded object is corresponding to the positioning area of the substrate.

By the structure and the method, compared with the current manual welding, the invention has the following advantages:

1. the technical requirement is reduced, and only general operators need to follow the steps to operate the heating or welding equipment of the automatic processing machine;

2. the problem of breakage of the enameled wire is avoided;

3. the quality loss of the welding position is reduced;

4. the specifications of the welding positions are uniform, and the height is effectively controlled to avoid interference with other components;

5. the efficiency is improved.

Drawings

FIG. 1A is a schematic perspective view of a first embodiment of the present invention;

FIG. 1B is a schematic cross-sectional view of a first embodiment of the present invention;

FIG. 1C is a schematic representation (one) of the use of the first embodiment of the present invention;

FIG. 1D is a schematic representation of the use of the first embodiment of the present invention (two);

FIG. 2A is a perspective view of a second embodiment of the present invention;

FIG. 2B is a schematic representation of the use of a second embodiment of the present invention;

FIG. 3A is a schematic perspective view of a third embodiment of the present invention;

FIG. 3B is a schematic representation of the use of a third embodiment of the present invention;

FIG. 4 is a schematic flow diagram of a welding method of the present invention.

Description of reference numerals: a substrate 1; a welding zone 11; a positioning region 12; an annular wall 13; the first protrusion groove 131; the second protrusion groove 132; a positioning member 2; a work 3; a weld region 31; a non-welded region 32; a solder 4; steps S1, S2, S21, S22, S3, S4, S5.

Detailed Description

The above objects, together with the structural and functional features thereof, are accomplished by the preferred embodiments according to the accompanying drawings.

Referring to fig. 1A, fig. 1B, fig. 1C and fig. 1D, which are schematic perspective views, schematic cross-sectional views, and schematic usage views (a) and (B) of a first embodiment of the present invention, the present invention includes a substrate 1, the substrate 1 has a bonding area 11 and at least one positioning area 12, the positioning area 12 is located around the outer side of the bonding area 11, at least one positioning element 2 is disposed on the positioning area 12, the positioning element 2 is any one of a double-sided tape or an adhesive, and the substrate 1 may be in any shape, such as circular, regular polygonal, or irregular polygonal shape.

An object to be welded 3, such as but not limited to enameled wire, has a welding portion 31 and at least one non-welding portion 32, the welding portion 31 corresponds to the welding region 11, and the non-welding portion 32 corresponds to the positioning region 12.

Referring to fig. 1C, in operation, the object 3 to be welded is placed on the substrate 1, the welding portion 31 is aligned with the welding region 11, the non-welding portion 32 is aligned with the positioning region 12, and the positioning member 2 on the positioning region 12 sticks to the non-welding portion 32, so that the object 3 cannot be easily moved, thereby achieving the purpose of fixing the object 3 to be welded.

Referring to fig. 1D, during soldering, the object 3 is first removed from the outer layer of the insulating paint layer by a heating means (such as but not limited to laser or soldering or other equivalent means), a solder 4 is placed on the soldering region 11 of the substrate 1, and then the object 3 is fixed by melting the solder 4 by a post-heating (such as but not limited to laser or reflow soldering or other equivalent means) to the soldering region 11.

The positioning member 2 may be made of a magnetic material such as a magnet or an electromagnet, and the welded object 3 may be positioned in a magnetic fixing manner, in addition to the positioning member 2 fixing the welded object 3 with a sticky property such as a double-sided tape or an adhesive.

Please refer to fig. 2A and fig. 2B, which are schematic perspective views and schematic use views of a second embodiment of the present invention, wherein the partial structure is the same as that of the first embodiment, and therefore will not be described herein, but the most important difference between the present embodiment and the first embodiment is that a ring wall 13 is disposed at the outer edge of the substrate 1, the ring wall 13 has a first protruding groove 131, the first protruding groove 131 corresponds to the positioning region 12 and protrudes from the ring wall 13, the length and width of the first protruding groove 131 can be changed according to the specification (such as the wire diameter) and the use requirement of the object 3 to be soldered, and the first protruding groove 131 generates a horizontal limit on the object 3 to be soldered.

Please refer to fig. 3A and fig. 3B, which are a perspective view and a schematic use view of a third embodiment of the present invention, the structure of the part is the same as that of the first embodiment, and therefore will not be described herein, but the most important difference between this embodiment and the first embodiment is that a ring wall 13 is disposed on the outer edge of the substrate 1, the annular wall 13 has a first protrusion recess 131 and a second protrusion recess 132, the first protrusion recess 131 and the second protrusion recess 132 correspond to the positioning region 12 and protrude from the annular wall 13, and the second protrusion recess 132 and the first protrusion recess 131 are located on a straight line, the length and width of the first and second protruded

grooves

131, 132 can be changed according to the specification (such as wire diameter) and the requirement of the object 3 to be welded, the first and second protruded

recesses

131 and 132 not only limit the object 3 to be welded in the horizontal direction, but also determine the object 3 to be welded in a linear state.

Referring to fig. 4 and fig. 1A to 1D, fig. 4 is a schematic flow chart of a welding method according to the present invention, which includes the following steps:

step S1: a substrate is provided with a welding area and at least one positioning area, and the positioning area is provided with a positioning piece. As mentioned above, the substrate 1 has a bonding pad 11 and at least one positioning region 12, and the positioning region 12 is provided with a positioning element 2 such as a double-sided tape or a coating adhesive.

Step S2: a solder is placed on the substrate. The object to be soldered 3 (enamel wire) is placed on the substrate 1 as described above.

Step S21: a bonding portion of the object to be bonded corresponds to the bonding area of the substrate. The welding portion 31 of the object 3 to be welded is aligned with the welding zone 11 as described above.

Step S22: a non-welding part of the welded object is corresponding to the positioning area of the substrate. The non-welding portion 32 of the object 3 to be welded is aligned with the positioning section 12 as described above.

Step S3: the welded object is positioned by the positioning piece. The non-welding portion 32 of the object 3 to be welded is fixed by the spacer 2, so that the object 3 to be welded is firmly fixed on the substrate 1.

Step S4: removing an insulating paint layer of the welded object by a heating means. The enamel layer on the object 3 (enameled wire) is melted and removed by a heating means (such as laser heating or butt welding or other similar or equivalent heating means) as mentioned above.

Step S5: placing a solder on the welding area of the substrate, melting the solder, and welding the object to be welded on the welding area through the solder. After a solder 4 such as solder paste or solder bump is placed on the land 11 as described above, the land 11 is heated to melt the solder 4, and the melted solder 4 covers and fixes the object 3 to be soldered to the land 11.

The heating means of step S4 may be manual holding iron to remove the insulating paint layer, or may be automated equipment to perform laser heating to remove the insulating paint layer; the step S5 ensures that each soldering site has the same quality by controlling the amount of solder 4 and precisely controlling the heating temperature and time and related values using an automated device (such as a reflow oven or a laser soldering machine).

2. the problem of breakage of the enameled wire is avoided;

3. the quality loss of the welding position is reduced;

5. the efficiency is improved.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A welding method, comprising:

providing a substrate having a welding area and at least one positioning area, wherein the positioning area has a positioning piece and surrounds the welding area;

placing a welded object on the substrate;

positioning the welded object through the positioning piece;

2. The welding method of claim 1, further comprising: a bonding portion of the object to be bonded corresponds to the bonding area of the substrate.

3. The welding method of claim 1, further comprising: a non-welding part of the welded object is corresponding to the positioning area of the substrate.

4. The soldering method according to claim 1, wherein an annular wall is provided on the outer periphery of the substrate, and the positioning region has a first protruding recess protruding from the annular wall.

5. The welding method of claim 4, wherein the positioning region has a second projection groove projecting from the annular wall, and the second projection groove and the first projection groove are located on a straight line.

6. The welding method of claim 1, wherein the positioning element is a double-sided adhesive tape.

7. The welding method of claim 1, wherein the positioning element is an adhesive.