Diode welding device
By designing an automated diode welding device, and using pressure sensors and solenoid valves to control the mold closing pressure, the problem of uncontrollable manual mold closing pressure was solved, achieving precise mold closing and efficient production, and improving product quality.
Patent Information
- Application Number
- CN202520168966.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-24
AI Technical Summary
In the manufacturing process of plastic-encapsulated diodes, the mold closing process of the welding step relies on manual operation, which leads to uncontrolled mold closing pressure, easily causing chip damage and low efficiency.
A diode welding device is used, which includes a welding frame, a cylinder, a mold closing block, a limit seat, a pressure sensor, and a solenoid valve. The mold closing pressure is controlled by the pressure sensor, and the cylinder is controlled by the solenoid valve to achieve automatic mold closing, prevent chip damage, and improve efficiency.
It achieves precise control of mold closing pressure, reduces chip damage, improves product qualification rate and production efficiency, and avoids chip misalignment and damage caused by improper manual operation.
Smart Images
Figure CN223734179U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diode manufacturing technology, and in particular to a diode welding device. Background Technology
[0002] Plastic-encapsulated diodes are a common type of semiconductor component, such as... Figure 5 As shown, during processing, axial leads, solder pads, and chips are stacked in sequence, soldered, and then plastic-encapsulated. However, in the processing of plastic-encapsulated diodes, the mold closing part of the soldering process requires manual pressing of the mold closing block downwards. This results in uncontrolled downward pressure during the mold closing process, and therefore, the current operating method inevitably causes physical damage to the chip. Utility Model Content
[0003] To address the aforementioned problems, the purpose of this invention is to provide a diode welding device that can effectively control pressure, improve welding efficiency, and ensure diode quality.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a diode welding device, comprising a welding frame and a welding fixture, wherein a cylinder is provided on the upper part of the welding frame, a mold clamping block is provided on the output shaft of the cylinder, a limiting seat is provided on the welding frame, the limiting seat is located at the lower part of the mold clamping block, a limiting groove is provided on the limiting seat, a pressure sensor is provided on the mold clamping block, the pressure sensor is electrically connected to the cylinder switch, and the welding fixture comprises a feeding platform and a support, wherein a plurality of diode material slots are provided on the feeding platform, and the support can be embedded in the limiting groove.
[0005] In the above technical solution, a guide post is provided between the mold clamping block and the welding frame.
[0006] In the above technical solution, the limiting seat is provided with two limiting grooves in pairs, and the support is respectively embedded in the limiting grooves on the corresponding side.
[0007] In the above technical solution, a buffer plate is provided at the bottom of the limiting groove.
[0008] In the above technical solution, the pressure sensor is electrically connected to the solenoid valve on the cylinder, and the solenoid valve controls the cylinder switch.
[0009] In the above technical solution, the feeding platform includes a feeding plate and a feeding plate, with the feeding plate covering the feeding plate.
[0010] In summary, the advantages of this utility model's technical solution compared to traditional methods are as follows: This utility model optimizes and improves existing pressure fixtures, enabling the setting of an upper pressure limit. It utilizes the energization and de-energization of a solenoid valve to control the downward and upward movement of the cylinder. Simultaneously, by setting the upper pressure limit, a pressure sensor ensures controlled downward pressure. During the downward pressing process, a limiting groove is added to the base of the device to prevent the fixture from moving arbitrarily, ultimately achieving successful mold closing.
[0011] Automatic mold closing equipment replaces manual mold closing operations, which reduces the difficulty of operation and greatly improves work efficiency. Compared with manual mold closing, it can control the mold closing pressure to prevent product damage due to improper mold closing pressure. It can also avoid chip misalignment caused by improper manual operation and prevent product damage due to improper mold closing pressure, thus greatly improving the product qualification rate. Attached Figure Description
[0012] The foregoing and other objects, features and advantages of this utility model will become apparent from the following detailed description taken in conjunction with the accompanying drawings.
[0013] Figure 1 This is a front view schematic diagram of the present invention;
[0014] Figure 2 This is a front view schematic diagram of the limiting seat in this utility model;
[0015] Figure 3 This is a schematic diagram of the welding position in this utility model;
[0016] Figure 4 This is a top view of the welding fixture in this utility model;
[0017] Figure 5 This is a schematic diagram of a diode;
[0018] The following are the labels: 100, welding frame; 110, cylinder; 120, mold clamping block; 121, pressure sensor; 122, guide post; 130, limit seat; 131, limit groove; 132, buffer plate; 200, welding fixture; 210, feeding table; 211, diode feed trough; 220, support; 300, diode; 310, lead wire; 320, solder sheet; 330, chip. Detailed Implementation
[0019] Based on the preferred embodiments of this utility model, and through the following description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
[0020] The present invention will be further described with reference to the following figures:
[0021] like Figures 1-4 As shown, a diode welding device includes a welding frame 100 and a welding fixture 200. The upper part of the welding frame 100 is provided with a cylinder 110, and a mold clamping block 120 is provided on the output shaft of the cylinder 110. The welding frame 100 is provided with a limiting seat 130, which is located below the mold clamping block 120. The limiting seat 130 is provided with a limiting groove 131. The mold clamping block 120 is provided with a pressure sensor 121, which is electrically connected to the cylinder 110. The welding fixture 200 includes a feeding platform 210 and a support 220. The feeding platform 210 is provided with a plurality of diode material slots 211, and the support 220 can be embedded in the limiting groove 131.
[0022] like Figure 1 As shown, a guide post 122 is provided between the mold clamping block 120 and the welding frame 110.
[0023] like Figure 2 As shown, the limiting seat 130 is provided with two limiting grooves 131 in pairs, and the support 220 is respectively embedded in the limiting grooves 131 on the corresponding side. The limiting grooves 131 can limit the welding fixture 200 and prevent the welding fixture 200 from moving when the mold is closed.
[0024] like Figure 3 As shown, a buffer plate 132 is provided at the bottom of the limiting groove 131.
[0025] The pressure sensor 121 is electrically connected to the solenoid valve on the cylinder 110, and the solenoid valve controls the switching of the cylinder 110.
[0026] like Figure 1 , 3 As shown, the feeding platform 210 includes a feeding plate 211 and a feeding plate 212, with the feeding plate 211 covering the feeding plate 212.
[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A diode welding device characterized by: The utility model provides a welding frame and welding tool, the upper portion of the welding frame is equipped with a cylinder, the output shaft of the cylinder is equipped with a die closing pressure block, the welding frame is equipped with a limiting seat, the limiting seat is located at the lower portion of the die closing pressure block, the limiting seat is equipped with a limiting slot, the die closing pressure block is equipped with a pressure sensor, the pressure sensor is electrically connected with the cylinder switch, the welding tool comprises a feeding table and a support, the feeding table is equipped with a plurality of diode grooves, and the support can be embedded in the limiting slot.
2. The diode welding device of claim 1, wherein: A guide column is arranged between the die closing pressure block and the welding frame.
3. The diode welding device of claim 1, wherein: Two limiting slots are arranged in pairs on the limiting seat, and the support is embedded in the limiting slot on the corresponding side.
4. The diode welding device of claim 1, wherein: A buffer plate is arranged at the bottom of the limiting slot.
5. The diode welding device of claim 1, wherein: The pressure sensor is electrically connected with a solenoid valve on the cylinder, and the solenoid valve controls the cylinder switch.
6. The diode welding device of claim 1, wherein: The feeding table comprises an upper feeding plate and a lower feeding plate, and the upper feeding plate covers the lower feeding plate.