Positioning jig of chip inductor welding die

Abstract

The utility model relates to the technical field of inductance coil positioning, in particular to a positioning jig of a chip inductor welding die, which comprises a positioning plate, the positioning plate is provided with a plurality of positioning stations, each positioning station comprises a positioning column for sleeving a coil, and a positioning seat is arranged on the periphery of each positioning column. A concave lead groove for positioning a pin of the coil is formed in the positioning seat, and a welding hole which is formed in the positioning plate in a penetrating manner is formed between the positioning seat and the positioning column; the lead frame is placed on the positioning plate, the wound coil sleeves the positioning column, the pins of the coil abut against the lead grooves respectively, and under the positioning cooperation of the lead grooves and the positioning column, the pins can make contact with the welding points of the lead frame, and the coil cannot move; and then a welding head of a welding machine longitudinally passes through the welding hole to realize welding of the coil and the lead frame, so that the time is greatly saved.

Description

Technical Field

[0001] This utility model relates to the field of inductor coil positioning technology, and in particular to a positioning fixture for a patch inductor welding mold. Background Technology

[0002] An inductor is a component that converts electrical energy into magnetic energy and stores it. During operation, different magnetic fields can interfere with the magnetic field generated by the inductor itself, affecting its function. Therefore, inductors are magnetically shielded.

[0003] After the coil is wound, it will have pins. The coil needs to be soldered to the lead frame to make the coil and the lead frame a whole before the powder is pressed. In the existing soldering process between the coil and the lead frame, the pins will shift during the soldering process, causing the contacts of the lead frame to be misaligned with the coil pins. Utility Model Content

[0004] The purpose of this invention is to provide a positioning fixture for a surface mount inductor welding mold, addressing the shortcomings of existing technologies.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A positioning fixture for a surface mount inductor welding mold includes a positioning plate with multiple positioning stations. Each positioning station includes a positioning post for mounting a coil. A positioning seat is arranged around the positioning post. The positioning seat has a recessed lead groove for positioning the coil pins. A welding hole formed through the positioning plate is provided between the positioning seat and the positioning post.

[0007] Furthermore: there are two positioning seats, which are arranged symmetrically around the positioning column and spaced apart.

[0008] Furthermore: the gap between the positioning seats allows the welding plate of the lead frame to be embedded.

[0009] Furthermore, the positioning seat is equipped with an adjustment structure for adjusting the position of the lead wire groove.

[0010] Furthermore: the adjustment structure includes a transverse groove formed laterally in the positioning seat, a sliding seat slidably mounted in the transverse groove, a lead wire groove formed in the sliding seat, and the sliding seat being able to move laterally in the transverse groove.

[0011] Furthermore: a first adjusting rod is installed on one side of the sliding seat, and a first adjusting hole is formed laterally on the positioning seat for the first adjusting rod to pass through, and the first adjusting rod is in a transmission engagement with the first adjusting hole.

[0012] Furthermore: a second adjusting rod is installed on the other side of the sliding seat, and a second adjusting hole is formed laterally on the positioning seat for the second adjusting rod to pass through, and the second adjusting rod is in a transmission engagement with the second adjusting hole.

[0013] Furthermore: a guide rail is arranged along the length of the top of the transverse groove, and a sliding groove is formed at the bottom of the sliding seat to slide in cooperation with the guide rail.

[0014] Furthermore: the positioning plate is formed with multiple upright first guide posts for the positioning and insertion of the lead frame through holes.

[0015] Furthermore: the positioning plate is formed with multiple recessed guide grooves.

[0016] The beneficial effects of this utility model are as follows: the lead frame is placed on the positioning plate, the wound coil is inserted into the positioning post, and the coil pins abut against the lead groove. With the positioning cooperation of the lead groove and the positioning post, the pins can contact the welding point of the lead frame, and the coil will not shift. Then, the welding head of the welding machine passes longitudinally through the welding hole to realize the welding of the coil and the lead frame, which greatly saves time. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the positioning fixture.

[0018] Fig. 2 This is a schematic diagram of the axonal structure of the positioning fixture.

[0019] Fig. 3 This is a schematic diagram of one of the positioning seats.

[0020] The reference numerals in the figures include:

[0021] 1-Positioning plate,

[0022] 11-Guide groove, 12-First guide post, 13-Positioning post, 14-Positioning seat, 15-Leader groove,

[0023] 16-Welding holes

[0024] 2- Adjustment structure,

[0025] 21-Transverse groove, 22-Sliding seat, 23-First adjusting rod, 24-First adjusting hole

[0026] 25-Second adjusting rod, 26-Second adjusting hole, 27-Guide rail, 28-Sliding groove. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings.

[0028] like Figs. 1-3As shown, a positioning fixture for a surface mount inductor welding mold includes a positioning plate 1. The positioning plate 1 is formed with multiple concave guide grooves 11, and the positioning plate 1 can be installed and positioned in a welding machine through the guide grooves 11. The positioning plate 1 is provided with multiple positioning stations, each including a positioning post 13 for coil mounting. A positioning seat 14 is arranged around the positioning post 13. The positioning seat 14 is formed with concave lead grooves 15 for positioning the coil pins. A welding hole 16 formed through the positioning plate 1 is provided between the positioning seat 14 and the positioning post 13.

[0029] The lead frame is placed on the positioning plate 1, and the wound coil is inserted into the positioning post 13. The coil pins abut against the lead groove 15. With the positioning cooperation of the lead groove 15 and the positioning post 13, the pins can contact the welding point of the lead frame, and the coil will not shift. Then, the welding head of the welding machine passes longitudinally through the welding hole 16 to realize the welding of the coil and the lead frame, which greatly saves time.

[0030] Furthermore, there are two positioning seats 14, which are arranged symmetrically around the positioning post 13. The two positioning seats 14 are spaced apart. The coil being positioned has four pins. Each positioning seat 14 is provided with two spaced lead slots 15. Therefore, setting two positioning seats 14 can provide four lead slots 15, which are used to position the four pins respectively.

[0031] The gap between the positioning seats 14 allows the welding plate of the lead frame to be embedded. The positioning plate 1 is formed with multiple upright first guide posts 12 for the positioning and insertion of the holes of the lead frame. The lead frame is installed and positioned by cooperating with the first guide posts 12 of the positioning plate 1 through the holes. The gap between the welding plate of the lead frame and the positioning seats 14 positions the welding plate. The welding point is formed at the end of the welding plate. The welding point of the welding plate is longitudinally aligned with the welding hole 16. The welding head of the welding equipment can move through the welding from top to bottom or from bottom to top, thereby welding the pins to the welding point of the welding plate to form a semi-finished product of the inductor.

[0032] The positioning base 14 is provided with an adjustment structure 2 for adjusting the position of the lead groove 15. The adjustment structure 2 includes a transverse groove 21 formed laterally in the positioning base 14, a sliding seat 22 slidably mounted on the transverse groove 21, and the lead groove 15 formed on the sliding seat 22. The sliding seat 22 can move laterally in the transverse groove 21. When different types and models of inductors are processed and formed, their pin angles will be different. To address this, the sliding seat 22 can be moved laterally, causing its position in the transverse groove 21 to change, so as to facilitate the positioning of the pins of different types of inductors.

[0033] Preferably, a first adjusting rod 23 is installed on one side of the sliding seat 22, and a first adjusting hole 24 for the first adjusting rod 23 to pass through is formed laterally on the positioning seat 14. The first adjusting rod 23 is in a transmission engagement with the first adjusting hole 24. A second adjusting rod 25 is installed on the other side of the sliding seat 22, and a second adjusting hole 26 for the second adjusting rod 25 to pass through is formed laterally on the positioning seat 14. The second adjusting rod 25 is in a transmission engagement with the second adjusting hole 26. When adjusting the position, the first adjusting rod 23 and the second adjusting rod 25 are rotated synchronously. When the first adjusting rod 23 moves inward to adjust the position, the second adjusting rod 25 moves outward to adjust the position. The first adjusting rod 23 and the second adjusting rod 25 act simultaneously on the sliding seat 22 to prevent the sliding seat 22 from becoming loose or shifting after the position is adjusted.

[0034] A guide rail 27 is arranged at the top of the transverse groove 21 along the length direction, and a sliding groove 28 is formed at the bottom of the sliding seat 22 to slide in cooperation with the guide rail 27; when adjusting the transverse position of the sliding seat 22, the stability of the movement is ensured.

[0035] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.

[0036] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A positioning fixture for a surface mount inductor soldering mold, comprising a positioning plate having multiple positioning stations, characterized in that: The positioning station includes a positioning post for mounting the coil, a positioning seat is arranged around the positioning post, the positioning seat is formed with a concave lead groove for positioning the coil pins, and a welding hole formed through the positioning plate is provided between the positioning seat and the positioning post. There are two positioning seats, which are symmetrically arranged around the positioning post and spaced apart. The gap between the positioning seats allows the welding plate of the lead frame to be embedded. The positioning seats are equipped with an adjustment structure to adjust the position of the lead slot.

2. The positioning fixture for a surface mount inductor soldering mold according to claim 1, characterized in that: The adjustment structure includes a transverse groove formed laterally in the positioning seat, a sliding seat slidably mounted in the transverse groove, a lead wire groove formed in the sliding seat, and the sliding seat being able to move laterally in the transverse groove.

3. The positioning fixture for a surface mount inductor soldering mold according to claim 2, characterized in that: A first adjusting rod is installed on one side of the sliding seat, and a first adjusting hole is formed laterally on the positioning seat for the first adjusting rod to pass through. The first adjusting rod and the first adjusting hole are in a transmission engagement.

4. The positioning fixture for a surface mount inductor soldering mold according to claim 3, characterized in that: A second adjusting rod is installed on the other side of the sliding seat, and a second adjusting hole is formed laterally on the positioning seat for the second adjusting rod to pass through. The second adjusting rod is in a transmission engagement with the second adjusting hole.

5. The positioning fixture for a surface mount inductor soldering mold according to claim 4, characterized in that: The top of the transverse groove is provided with a guide rail along its length, and the bottom of the sliding seat is formed with a sliding groove that slides in conjunction with the guide rail.

6. The positioning fixture for a surface mount inductor soldering mold according to claim 5, characterized in that: The positioning plate is formed with multiple upright first guide posts for the positioning and insertion of the lead frame through holes.

7. The positioning fixture for a surface mount inductor soldering mold according to claim 6, characterized in that: The positioning plate is formed with multiple concave guide grooves.

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