Wave-shaped lead forming device for mutual inductor

Abstract

The utility model discloses a mutual inductor wave-shaped lead forming device which comprises a lower die, an upper die, a driving mechanism and a buffer block, the driving mechanism is connected with the upper die, the upper die is located above the lower die, and the buffer block is located above the lower die. The top surface of the lower die and the bottom surface of the upper die are respectively a lower wave-shaped surface and an upper wave-shaped surface which are matched with each other, a first inclined surface is formed on the bottom surface of the upper die on one side of the upper wave-shaped surface, the buffer block can be horizontally and slidably arranged on the lower die, the buffer block is provided with a guide strip, and the guide strip is arranged on the lower die. A guide strip is arranged on the lower die, a strip-shaped hole extending horizontally is formed in the guide strip, two positioning threaded holes which are horizontally arranged side by side are formed in the side face of the lower die, two screws are arranged to penetrate through the strip-shaped hole and are in threaded fit with the positioning threaded holes, a second inclined face is arranged on the top face of the buffer block, and a spring is arranged on the second inclined face. The technical scheme is used for solving the problem that an existing wave-shaped lead is fractured during stamping.

Description

Technical Field

[0001] This utility model belongs to the technical field of current transformer processing equipment, specifically relating to a current transformer corrugated lead forming device. Background Technology

[0002] Current transformers, as common and widely used components in the electronics field, are typically equipped with leads for soldering to external pad structures to achieve electrical connections. To further increase the soldering area and improve soldering stability, some current transformers intentionally design their leads in a wavy shape. This wavy lead structure is usually achieved through stamping during manufacturing. However, existing stamping dies have significant drawbacks. They use hydraulic cylinders as the driving force, which generates a very large impact force during stamping. Because this huge instantaneous impact force is difficult to effectively buffer and control, it can easily damage the leads, leading to breakage. This severely affects the production quality and efficiency of current transformers, increasing production costs and scrap rates. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a current transformer corrugated lead forming device to solve the problem of breakage during existing corrugated lead stamping. This current transformer corrugated lead forming device can generate a buffering effect during impact, and the buffering force can be adjusted as needed to improve the forming quality of the corrugated lead.

[0004] This utility model provides a device for forming a corrugated lead wire of a current transformer, including a lower mold, an upper mold, a driving mechanism, and a buffer block. The driving mechanism is connected to the upper mold, which is located above the lower mold. The top surface of the lower mold and the bottom surface of the upper mold are mutually adapted lower corrugated surfaces and upper corrugated surfaces, respectively. A first inclined surface is formed on one side of the upper corrugated surface on the bottom surface of the upper mold. The buffer block is horizontally slidably disposed on the lower mold and is provided with a guide strip. A horizontally extending strip hole is opened on the guide strip. Two horizontally parallel positioning threaded holes are opened on the side of the lower mold. Two screws pass through the strip hole and are threadedly engaged with the positioning threaded holes. A second inclined surface is provided on the top surface of the buffer block, which is located below the first inclined surface. A spring is provided on the second inclined surface.

[0005] Furthermore, the driving mechanism is a hydraulic device.

[0006] Furthermore, the lower mold is provided with a positioning groove for positioning the current transformer, and the buffer block is provided with a clearance groove for lead wire clearance.

[0007] When this current transformer corrugated lead forming device performs the corrugated lead stamping operation, the drive mechanism drives the upper die to press down. When the upper and lower corrugated surfaces are about to contact, the first inclined surface of the upper die contacts the second inclined surface through a spring, forming an elastic buffer effect. This effectively reduces the huge instantaneous impact force brought by the upper die, thereby significantly reducing the risk of lead breakage and ensuring the integrity and quality of the product. At the same time, the horizontal position of the buffer block can be adjusted by loosening or loosening the screw, thereby adjusting the buffer force. It has good adaptability, greatly improves the forming qualification rate of the current transformer corrugated lead, reduces the defect rate, and saves production costs. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of a device for forming corrugated leads for a current transformer. Detailed Implementation

[0010] This utility model discloses a device for forming corrugated leads for current transformers. This device can generate a buffering effect during impact, and the buffering force can be adjusted as needed to improve the forming quality of corrugated leads.

[0011] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, what is described is only a part of the embodiments of this utility model, and not all of the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0012] See Figure 1As shown, this utility model discloses a wave-shaped lead forming device for a current transformer, including a lower mold 12, an upper mold 1, a driving mechanism, and a buffer block 5. The driving mechanism is connected to the upper mold 1, which is located above the lower mold 12. The top surface of the lower mold 12 and the bottom surface of the upper mold 1 are respectively a lower wave-shaped surface 8 and an upper wave-shaped surface 7 that are adapted to each other. The bottom surface of the upper mold 1 forms a first inclined surface 2 on one side of the upper wave-shaped surface 7. The buffer block 5 is horizontally slidably disposed on the lower mold 12. The buffer block 5 is provided with a guide strip 11, and the guide strip 11 has a horizontally extending strip-shaped hole 9. The side of the lower mold 12 has two horizontally parallel positioning threaded holes 10, and two screws pass through the strip-shaped hole 9 and are threaded into the positioning threaded holes 10. The top surface of the buffer block 5 is provided with a second inclined surface 4, which is located below the first inclined surface 2. A spring 6 is provided on the second inclined surface 4.

[0013] The driving mechanism is a hydraulic device.

[0014] The lower mold 12 is provided with a positioning groove 13 for positioning the current transformer, and the buffer block 5 is provided with a clearance groove 3 for lead wire clearance.

[0015] When this current transformer corrugated lead forming device performs the corrugated lead stamping operation, the drive mechanism drives the upper mold 1 to press down. When the upper corrugated surface 7 and the lower corrugated surface 8 are about to contact, the first inclined surface 2 of the upper mold 1 contacts the second inclined surface 4 through the spring 6, forming an elastic buffer effect. This effectively reduces the huge instantaneous impact force brought by the upper mold 1, thereby significantly reducing the risk of lead breakage and ensuring the integrity and quality of the product. At the same time, the horizontal position of the buffer block 5 can be adjusted by loosening or loosening the screw, thereby adjusting the buffer elastic force. It has good adaptability, greatly improves the forming qualification rate of the current transformer corrugated lead, reduces the defect rate, and saves production costs.

[0016] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A device for forming corrugated leads for a current transformer, characterized in that, The device includes a lower mold, an upper mold, a drive mechanism, and a buffer block. The drive mechanism is connected to the upper mold, which is located above the lower mold. The top surface of the lower mold and the bottom surface of the upper mold are mutually adapted lower and upper wavy surfaces, respectively. The bottom surface of the upper mold forms a first inclined surface on one side of the upper wavy surface. The buffer block is horizontally slidably mounted on the lower mold and is provided with a guide strip. The guide strip has a horizontally extending strip-shaped hole. The side of the lower mold has two horizontally parallel positioning threaded holes. Two screws pass through the strip-shaped holes and are threaded into the positioning threaded holes. The top surface of the buffer block has a second inclined surface, which is located below the first inclined surface. A spring is provided on the second inclined surface.

2. The transformer corrugated lead forming device according to claim 1, characterized in that, The driving mechanism is a hydraulic device.

3. The current transformer corrugated lead forming device according to claim 1, characterized in that, The lower mold is provided with a positioning groove for positioning the current transformer, and the buffer block is provided with a clearance groove for lead wire clearance.

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