Flattening tool for bending lead for ceramic shell

Abstract

The utility model discloses a flattening tool of a bending lead for a ceramic shell. The flattening tool comprises a main die and an auxiliary die, a main die groove is formed in the main die, a lower die is mounted in the main die groove, and an upper die is mounted above the lower die; a spring is arranged between the upper die and the lower die, and a gap for a to-be-flattened bent lead to pass through is reserved between the upper die and the lower die; the auxiliary mold comprises a front mold, a middle mold and a rear mold; the front mold and the rear mold are fixedly mounted on the middle mold; the front mold is provided with a plurality of front mold through holes and front mold grooves which are used for fixing to-be-flattened and bent leads, and the parts, extending out of the front mold grooves, of the to-be-flattened and bent leads are to-be-flattened areas. The flattening tool provided by the utility model is simple in structure and strong in universality, can be suitable for flattening bending leads of various different sizes, realizes the accurate tolerance of the sizes of flattened core columns, and improves the bonding performance of products.

Description

Technical Field

[0001] This utility model relates to the field of metal wire forming and processing technology, and more specifically to a flattening tool for bending leads used in ceramic shells. Background Technology

[0002] In the field of ceramic brazing, for some products that require flattening bent leads, flattening after sealing can easily lead to mechanical stress at the sealing area, causing cracks and affecting the performance of the sealed product. This patent addresses this issue by rationally designing a flattening fixture to flatten the leads before sealing, reducing the risk of brazing cracks caused by flattening the core post after sealing. This significantly improves the yield rate of sealed products, reduces the labor intensity of workers, and generates good economic benefits. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a flattening fixture for bending leads used in ceramic housings. This fixture has a simple structure, strong versatility, and can be applied to flattening bending leads of various sizes.

[0004] The technical solution adopted by this utility model to solve the technical problem is: a flattening fixture for bending leads for ceramic shells, including a main mold and a secondary mold; the main mold is provided with a main mold groove, a lower mold is installed in the main mold groove, and an upper mold is installed above the lower mold; a spring is provided between the upper mold and the lower mold, and a gap is left between the upper mold and the lower mold for the lead to be flattened to pass through; the secondary mold includes a front mold, a middle mold and a rear mold, and the front mold and the rear mold are both fixedly installed on the middle mold; the front mold is provided with a plurality of front mold through holes and front mold grooves for fixing the lead to be flattened, and the part of the lead to be flattened that extends out of the front mold groove is the flattening area.

[0005] Furthermore, in the main mold, the upper mold is provided with an upper positioning pin hole, the lower mold is provided with a lower positioning pin hole, and the main mold positioning pin is installed between the upper positioning pin hole and the lower positioning pin hole.

[0006] Furthermore, in the main mold, the upper mold is provided with an upper spring hole, the lower mold is provided with a lower spring hole, and the spring is installed between the upper spring hole and the lower spring hole.

[0007] Furthermore, the main mold groove is provided with main mold screw positioning holes on both sides, and the lower mold is fixed in the main mold groove by the main mold positioning screw cooperating with the main mold screw positioning holes.

[0008] Furthermore, the front mold is provided with a front mold screw hole, the middle mold is provided with a middle mold screw hole, and the middle mold positioning screw passes through the front mold screw hole and the middle mold screw hole to detachably connect the front mold and the middle mold; the rear mold is provided with a rear mold screw hole, and the rear mold positioning screw passes through the rear mold screw hole to detachably connect the rear mold and the middle mold.

[0009] Furthermore, the upper end of the front mold is provided with a stepped surface, and a plurality of front mold through holes are opened on the lower level of the stepped surface. The front mold through holes are used to fix the lead wire body to be flattened and bent; a plurality of front mold grooves are opened on the upper level of the stepped surface, and the front mold through holes and the front mold grooves are arranged in a one-to-one correspondence. The opening direction of the front mold through holes and the front mold grooves is perpendicular to that of the front mold grooves.

[0010] Furthermore, the size of the flattened area in the bending lead wire can be adjusted by adjusting the size of the front mold groove on the front mold; the flattening fixture can flatten bending leads of various sizes.

[0011] The beneficial effects of this utility model are as follows: Compared with the prior art, the flattening fixture for bending leads of ceramic shells provided by this utility model, through reasonable design of the flattening fixture structure, adopts the method of flattening the leads before packaging, which reduces the risk of brazing cracking caused by sealing first and then flattening the leads, greatly improves the product sealing yield, and the fixture has extremely strong versatility, which can adapt to the needs of flattening leads of various specifications and sizes. It can flatten a large number of leads at a time, reduce the labor intensity of workers, improve work efficiency, and generate good economic benefits. The lead flattening dimensional tolerance is controlled within ±0.02mm, which is conducive to the positioning of the product core and ensures the bonding strength and consistency of the signal gold wires in the subsequent chip packaging and testing process. Attached Figure Description

[0012] Figure 1 A schematic diagram of the main mold structure of the flattening tooling provided by this utility model;

[0013] Figure 2 A schematic diagram of the sub-mold and lead wires of the flattening tooling provided by this utility model;

[0014] Among them, 1-main mold, 2-upper mold, 3-main mold groove, 4-lower mold, 5-main mold positioning pin, 6-lower positioning pin hole, 7-upper positioning pin hole, 8-main mold positioning screw, 9-main mold screw positioning hole, 10-spring, 11-lower spring hole, 12-upper spring hole, 13-middle mold, 14-front mold, 15-front mold groove, 16-front mold through hole, 17-middle mold positioning screw, 18-front mold screw hole, 19-middle mold screw hole, 20-rear mold, 21-rear mold screw hole, 22-rear mold positioning screw, 23-lead wire body, 24-area to be flattened. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0016] Example

[0017] like Figure 1 and 2 As shown, a flattening fixture for bending leads in ceramic housings includes a main mold 1 and a secondary mold. The main mold 1 has a main mold groove 3, a lower mold 4 is installed in the main mold groove 3, and an upper mold 2 is installed above the lower mold 4. A spring 10 is provided between the upper mold 2 and the lower mold 4, and a gap is left between the upper mold 2 and the lower mold 4 for the flattened bending lead to pass through. The secondary mold includes a front mold 14, a middle mold 13, and a rear mold 20. The front mold 14 and the rear mold 20 are both fixedly installed on the middle mold 13. The front mold 14 has a plurality of front mold through holes 16 and front mold grooves 15 for fixing the flattened bending lead. The portion of the flattened bending lead that extends out of the front mold groove 15 is the flattening area 24.

[0018] In the main mold 1, the upper mold 2 is provided with an upper positioning pin hole 7, and the lower mold 4 is provided with a lower positioning pin hole 6. The main mold positioning pin 5 is installed between the upper positioning pin hole 7 and the lower positioning pin hole 6. In the main mold 1, the upper mold 2 is provided with an upper spring hole 12, and the lower mold 4 is provided with a lower spring hole 11. The spring 10 is installed between the upper spring hole 12 and the lower spring hole 11.

[0019] The main mold groove 3 has main mold screw positioning holes 9 on both sides. The lower mold 4 is fixed in the main mold groove 3 by the main mold positioning screw 8 cooperating with the main mold screw positioning holes 9.

[0020] The front mold 14 is provided with a front mold screw hole 18, and the middle mold 13 is provided with a middle mold screw hole 19. The middle mold positioning screw 17 passes through the front mold screw hole 18 and the middle mold screw hole 19, thereby detachably connecting the front mold 14 and the middle mold 13. The rear mold 20 is provided with a rear mold screw hole 21, and the rear mold positioning screw 22 passes through the rear mold screw hole 21, thereby detachably connecting the rear mold 20 and the middle mold 13.

[0021] The upper end of the front mold 14 has a stepped surface, and the lower level of the stepped surface has a plurality of front mold through holes 16 for fixing the lead wire body 23 to be flattened and bent. The upper level of the stepped surface has a plurality of front mold grooves 15, and the front mold through holes 16 and the front mold grooves 15 are arranged in a one-to-one correspondence, with the opening direction of the front mold through holes 16 and the front mold grooves 15 perpendicular to each other. The front mold through holes 16 and the front mold grooves 15 fix each lead wire to be flattened and bent, improving the flattening accuracy.

[0022] The size of the flattening area 24 in the lead wire to be flattened and bent can be adjusted by adjusting the size of the front mold groove 15 on the front mold 14; by replacing the front mold 14 of different sizes, the flattening fixture can flatten various sizes of bending leads.

[0023] During the flattening process of the bending lead wire, the bending lead wire body 23 is inserted into the front mold through hole 16 on the front mold 14, and the area to be flattened 24 passes through the front mold groove 15 on the front mold 14. The front mold 14 is tightly attached to the bottom plate of the lower mold 4, and the area to be flattened 24 is placed between the upper mold 2 and the lower mold 4. The secondary mold remains stationary, and the upper mold 2 is moved up and down along the direction of the main mold positioning pin 5 to complete the flattening. After the bending lead wire is flattened, the upper mold 2 is springed upward by the spring 10, and the secondary mold is moved. The flattening fixture can flatten multiple bending leads wires at once.

[0024] The above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model. The patent protection scope of the present utility model should be defined by the claims.

Claims

1. A flattening fixture for bending leads in ceramic housings, characterized in that: The system includes a main mold and a sub-mold. The main mold has a main mold groove, in which a lower mold is installed, and an upper mold is installed above the lower mold. A spring is provided between the upper mold and the lower mold, and a gap is left between the upper mold and the lower mold for the flattened bending lead wire to pass through. The sub-mold includes a front mold, a middle mold, and a rear mold, and the front mold and the rear mold are fixedly installed on the middle mold. The front mold has several front mold through holes and front mold grooves for fixing the flattened bending lead wire, and the part of the flattened bending lead wire that extends out of the front mold groove is the flattening area.

2. The flattening fixture for bending leads for ceramic housings as described in claim 1, characterized in that: In the main mold, the upper mold is provided with an upper positioning pin hole, the lower mold is provided with a lower positioning pin hole, and the main mold positioning pin is installed between the upper positioning pin hole and the lower positioning pin hole.

3. The flattening fixture for bending leads for ceramic housings as described in claim 1, characterized in that: In the main mold, the upper mold is provided with an upper spring hole, the lower mold is provided with a lower spring hole, and the spring is installed between the upper spring hole and the lower spring hole.

4. The flattening fixture for bending leads for ceramic housings as described in claim 1, characterized in that: The main mold groove has main mold screw positioning holes on both sides, and the lower mold is fixed in the main mold groove by the main mold positioning screws cooperating with the main mold screw positioning holes.

5. The flattening fixture for bending leads for ceramic housings as described in claim 1, characterized in that: The front mold has a front mold screw hole, the middle mold has a middle mold screw hole, and the middle mold positioning screw passes through the front mold screw hole and the middle mold screw hole to detachably connect the front mold and the middle mold; the rear mold has a rear mold screw hole, and the rear mold positioning screw passes through the rear mold screw hole to detachably connect the rear mold and the middle mold.

6. The flattening fixture for bending leads for ceramic housings as described in claim 1, characterized in that: The upper end of the front mold is provided with a stepped surface, and a number of front mold through holes are opened on the lower level of the stepped surface. The front mold through holes are used to fix the lead wire body to be flattened and bent; a number of front mold grooves are opened on the upper level of the stepped surface, and the front mold through holes and the front mold grooves are arranged in a one-to-one correspondence. The opening direction of the front mold through holes and the front mold grooves is perpendicular to that of the front mold grooves.

7. The flattening fixture for bending leads for ceramic housings as described in claim 1, characterized in that: The size of the flattened area in the bending lead wire can be adjusted by adjusting the size of the groove on the front mold; the flattening fixture can flatten bending leads of various sizes.

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