CN215846270U - A tool for inductance coils and terminal spot welding - Google Patents
A tool for inductance coils and terminal spot welding Download PDFInfo
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- CN215846270U CN215846270U CN202022606638.3U CN202022606638U CN215846270U CN 215846270 U CN215846270 U CN 215846270U CN 202022606638 U CN202022606638 U CN 202022606638U CN 215846270 U CN215846270 U CN 215846270U
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- terminal
- inductance coil
- cavity
- spot welding
- cover plate
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Abstract
The utility model discloses a jig for spot welding of an inductance coil and a terminal, which comprises a base and a cover plate, wherein a terminal groove for embedding the terminal is formed in the base, a long fixing table is arranged in the terminal groove, a plurality of cavities for containing limiting arms and the inductance coil on the terminal are formed in the fixing table, and the cavities are distributed at equal intervals along the length direction of the fixing table; the opposite two sides of the cavity are provided with cutting grooves communicated with the side surface of the fixed platform, and the cutting grooves correspond to the electrode pins on the terminal; a middle column is vertically arranged in the cavity; one side of the cavity is provided with two wire outlet grooves, one wire outlet groove corresponds to the lead-in end of the inductance coil, and the other wire outlet groove corresponds to the lead-out end of the inductance coil; the cover plate is covered on the base and provided with a plurality of pressing blocks, each pressing block is provided with a position avoiding cavity, and two ends of the cover plate are fixed through locking pieces arranged on the base; the utility model can prevent the terminal from expanding and deforming during spot welding and improve the production quality.
Description
Technical Field
The present disclosure relates to jig apparatuses, and particularly to a jig apparatus for spot welding an inductance coil and a terminal.
Background
Integrally molded inductors, which include inductor terminals and inductor coils, are widely used in various high-current electronic circuits; the inductor terminal comprises a frame body and a plurality of electrode pins arranged in the frame body, and two limiting arms are forked on each electrode pin; referring to fig. 1, in the production process of the inductor, the pins of the inductance coil need to be welded on the limiting arms, and the current welding modes include resistance spot welding, laser spot welding and ultrasonic spot welding.
Referring to fig. 2, when spot welding, a welding head of a spot welding machine needs to apply force to a pin of an inductance coil and a terminal welding spot, so that the terminal is deformed by outward expansion, if the deformation is too large, an inductor is difficult to be formed by powder pressing, even the formed inductor is easy to crack, and the production quality of the inductor is seriously reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a jig for spot welding of an inductance coil and a terminal, which can prevent the terminal from expanding and deforming during spot welding, thereby improving the production quality of an integrally formed inductor.
The technical scheme adopted by the utility model is as follows.
A jig for spot welding of an inductance coil and a terminal is characterized by comprising a base and a cover plate, wherein a terminal groove for embedding the terminal is formed in the base, a long fixing table is arranged in the terminal groove, a plurality of cavities for containing limiting arms on the terminal and the inductance coil are formed in the fixing table, and the cavities are distributed at equal intervals along the length direction of the fixing table; the opposite two sides of the cavity are provided with cutting grooves communicated with the side surface of the fixed platform, and the cutting grooves correspond to the electrode pins on the terminal; a center pillar for positioning and installing an inductance coil is vertically arranged in the cavity; one side of the cavity is provided with two wire outlet grooves, one wire outlet groove corresponds to the lead-in end of the inductance coil, and the other wire outlet groove corresponds to the lead-out end of the inductance coil; the cover plate is covered on the base and provided with a plurality of pressing blocks, the pressing blocks are distributed at equal intervals along the length direction of the cover plate and are matched with the cutting grooves in a one-to-one correspondence manner, and two ends of the cover plate are fixed through locking pieces arranged on the base; each pressing block is provided with a position avoiding cavity, and the position avoiding cavity is opposite to the cavity on the fixed table.
On the basis of the technical scheme, the utility model can be improved as follows:
a plurality of positioning pins are arranged on two opposite sides of the terminal groove, are distributed at equal intervals along the length direction of the terminal groove and are correspondingly matched with positioning openings arranged on the terminal frame.
The locking parts are provided with two groups, one group of locking parts is arranged at one end close to the terminal groove, and the other group of locking parts is arranged at the other end close to the terminal groove; both ends of the cover plate are provided with flanges matched with the locking pieces.
Each group of locking pieces comprises two fixing blocks fixedly arranged on the base, and the two fixing blocks are arranged at intervals to form clamping grooves corresponding to the flanges and are in stop fit with the end face of the cover plate.
The depth of the terminal groove is the same as the thickness of the embedded terminal.
Compared with the prior art, the technology of the utility model has the following advantages:
(1) the jig for the spot welding of the inductance coil and the terminal is provided with the terminal groove, the terminal is installed in the terminal groove, and when the spot welding is carried out, a welding head of a spot welding machine needs to apply acting force to a coil pin and a terminal welding spot, the terminal groove generates corresponding reacting force to the terminal to offset the acting force, so that the terminal is limited to be expanded and deformed, and the production quality of the integrally formed inductor is improved;
(2) The jig for spot welding the inductance coil and the terminal is provided with the positioning pin, so that the terminal can be quickly positioned and installed in the terminal groove, and the terminal is prevented from sliding in the terminal groove in the spot welding process, so that the production efficiency of the integrally formed inductor is improved, and the production quality of the integrally formed inductor is further improved;
(3) the fixture for spot welding the inductance coil and the terminal is characterized in that a fixing table is arranged in a terminal groove, a cavity is formed in the fixing table, a center pillar is arranged in the cavity, the inductance coil can be quickly positioned and installed in the cavity, and the inductance coil is prevented from sliding in the cavity in the spot welding process.
(4) The cover plate of the jig for the spot welding of the inductance coil and the terminal is provided with the avoidance cavity, so that the coil is prevented from being scratched by a welding head in the spot welding, and the phenomenon of poor electrical property of the inductor caused by interlayer conduction is effectively avoided.
Drawings
The utility model is described in further detail below with reference to the figures and the specific embodiments
FIG. 1 is a schematic diagram of a conventional structure of an inductance coil and a terminal which are qualified after spot welding;
FIG. 2 is a schematic structural diagram of a conventional inductance coil and terminal subjected to spot welding to generate outward expansion deformation;
Fig. 3 is a schematic structural diagram of a jig for spot welding of an inductance coil and a terminal in the present embodiment;
fig. 4 is a schematic structural view of an inductor and terminals mounted on a base of the jig in this embodiment;
fig. 5 is a schematic structural diagram of the cover plate in the embodiment.
Reference numbers on the drawings: 1-base, 2-cover plate, 3-terminal groove, 4-fixed table, 5-cavity, 6-terminal, 7-limit arm, 8-inductance coil, 9-cutting groove, 10-electrode pin, 11-center post, 12-outlet groove, 13-positioning pin, 14-fixing block, 15-flange, 16-pressing block, 17-avoiding cavity.
Detailed Description
Referring to fig. 1 to 5, the jig for spot welding of the inductance coil and the terminal of the embodiment includes a base 1 and a cover plate 2, wherein a terminal groove 3 is formed on the base 1, the terminal groove 3 is used for embedding a terminal 6, and the depth of the terminal groove 3 is the same as the thickness of the embedded terminal; a long fixing table 4 is arranged in the terminal groove 3, a plurality of cavities 5 are arranged on the fixing table 4, the containing 5 is used for containing limiting arms 7 and inductance coils 8 on the terminals 6, and the cavities 5 are distributed at equal intervals along the length direction of the fixing table 4; the leading-in end and the leading-out end of the inductance coil 8 accommodated in the cavity 5 are positioned on the same side of the inductance coil 8, and the inductance coil 8 in the embodiment is a circular coil and can also be a flat coil; the left side and the right side of the cavity 5 are provided with cutting grooves 9 communicated with the side surfaces of the fixed platform 4, and the cutting grooves 9 correspond to electrode pins 10 on the terminal 6; a center pillar 11 is vertically arranged in the cavity 5, and the center pillar 11 can enable the induction coil 8 to be quickly positioned and installed in the cavity 5 and prevent the induction coil 8 from sliding in the cavity 5 during spot welding; two wire outlet grooves 12 are arranged at the rear side of the cavity 5, one wire outlet groove 12 corresponds to the lead-in end of the inductance coil 8, and the other wire outlet groove 12 corresponds to the lead-out end of the inductance coil 8; the cover plate 2 is covered on the base 1 and is provided with a plurality of pressing blocks 16, the pressing blocks 16 are distributed at equal intervals along the length direction of the cover plate 2 and are matched with the cutting grooves 9 in a one-to-one correspondence mode, and therefore the electrode pins 10 on the terminal 6 are pressed; meanwhile, each pressing block 16 is provided with a position-avoiding cavity 17, the position-avoiding cavity 17 is opposite to the cavity 5 on the fixed table 4, the induction coil 8 is effectively prevented from being scratched by a spot welding pole head in the spot welding process, and two ends of the cover plate 2 are fixed through locking pieces arranged on the base 1; during spot welding, a welding head of a spot welding machine needs to apply acting force to a coil pin and a terminal welding spot, and a terminal groove generates corresponding reacting force to a terminal to offset the acting force; therefore, the jig for spot welding of the inductance coil and the terminal in the embodiment can prevent the terminal from expanding and deforming during spot welding, so that the production quality of the integrally formed inductor is improved.
The left and right sides of terminal groove 3 in this embodiment is equipped with many locating pins 13, and locating pin 13 corresponds the cooperation along the equal interval distribution of the length direction in terminal groove 3 and with the locating hole that sets up on terminal 6 frame, makes terminal 6 can fix a position the installation fast in terminal groove 3 to prevent that terminal 6 from taking place to slide in terminal groove 3 at the in-process of spot welding, thereby not only improve the production efficiency of integrated into one piece inductance, further improve the production quality of integrated into one piece inductance moreover.
The locking parts in the embodiment are provided with two groups, one group of the locking parts is arranged at the front end close to the terminal groove 3, the other group of the locking parts is arranged at the rear end close to the terminal groove 3, and flanges 15 matched with the locking parts are arranged at the front end and the rear end of the cover plate 2; each group of locking parts comprises two fixing blocks 14 fixedly arranged on the base 1, and the two fixing blocks 14 are arranged at intervals left and right to form clamping grooves corresponding to the flanges 15 and are in stop fit with the end face of the cover plate 2; thereby make the apron can fix a position on the base fast and cover the terminal groove.
The above-described embodiments of the present invention are not intended to limit the scope of the present invention, and the embodiments of the present invention are not limited thereto, and various other modifications, substitutions and alterations can be made to the above-described structure of the present invention without departing from the basic technical concept of the present invention as described above, according to the common technical knowledge and conventional means in the field of the present invention.
Claims (5)
1. A jig for spot welding of an inductance coil and a terminal is characterized by comprising a base and a cover plate, wherein a terminal groove for embedding the terminal is formed in the base, a long fixing table is arranged in the terminal groove, a plurality of cavities for containing limiting arms on the terminal and the inductance coil are formed in the fixing table, and the cavities are distributed at equal intervals along the length direction of the fixing table; the opposite two sides of the cavity are provided with cutting grooves communicated with the side surface of the fixed platform, and the cutting grooves correspond to the electrode pins on the terminal; a center pillar for positioning and installing an inductance coil is vertically arranged in the cavity; one side of the cavity is provided with two wire outlet grooves, one wire outlet groove corresponds to the lead-in end of the inductance coil, and the other wire outlet groove corresponds to the lead-out end of the inductance coil; the cover plate is covered on the base and provided with a plurality of pressing blocks, the pressing blocks are distributed at equal intervals along the length direction of the cover plate and are matched with the cutting grooves in a one-to-one correspondence manner, and two ends of the cover plate are fixed through locking pieces arranged on the base; each pressing block is provided with a position avoiding cavity, and the position avoiding cavity is opposite to the cavity on the fixed table.
2. The jig for spot welding of the inductance coil and the terminal according to claim 1, wherein a plurality of positioning pins are disposed on two opposite sides of the terminal groove, and the positioning pins are distributed at equal intervals along the length direction of the terminal groove and are correspondingly matched with positioning holes disposed on the terminal frame.
3. The jig for spot welding of an inductance coil and a terminal according to claim 1, wherein the locking members are provided in two sets, one set of the locking members is provided near one end of the terminal groove, and the other set of the locking members is provided near the other end of the terminal groove; both ends of the cover plate are provided with flanges matched with the locking pieces.
4. The jig for the spot welding of the inductance coil and the terminal according to claim 3, wherein each set of the locking member comprises two fixing blocks fixedly installed on the base, and the two fixing blocks are arranged at intervals to form clamping grooves corresponding to the flanges and are in stop fit with the end faces of the cover plates.
5. The jig for spot welding of an inductance coil and a terminal according to claim 1, wherein the depth of the terminal groove is the same as the thickness of the embedded terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022606638.3U CN215846270U (en) | 2020-11-12 | 2020-11-12 | A tool for inductance coils and terminal spot welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022606638.3U CN215846270U (en) | 2020-11-12 | 2020-11-12 | A tool for inductance coils and terminal spot welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215846270U true CN215846270U (en) | 2022-02-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022606638.3U Active CN215846270U (en) | 2020-11-12 | 2020-11-12 | A tool for inductance coils and terminal spot welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215846270U (en) |
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2020
- 2020-11-12 CN CN202022606638.3U patent/CN215846270U/en active Active
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