High-speed precision press

Abstract

The invention discloses a high-speed precision press, which includes a working mechanism, a transmission system, a servo motor, and a supporting component. The working mechanism includes a crank, a connecting rod, and a slider, and the crank is connected to the slider through a connecting rod; The transmission system includes non-circular gear transmission and belt transmission. The non-circular gear transmission includes non-circular driving gear and non-circular driven gear. The non-circular driving gear is driven to rotate by the servo motor belt pulley, and then drives the non-circular The driven gear runs; the non-circular driven gear is connected to the crank, and the non-circular driven gear runs to drive the crank to move, and the connecting rod connected to the crank pushes the slider to complete the punching work. This press adopts a high-speed precision press driven by non-circular gears to process materials by controlling the precision of the bottom dead center, which not only has high manufacturing precision and high work efficiency, but also ensures the processing quality.

Description

technical field [0001] The invention relates to a press equipment, in particular to a high-speed precision press. Background technique [0002] The lead frame is the chip carrier of the integrated circuit. It realizes the electrical connection between the lead-out end of the internal circuit of the chip and the external lead by means of the bonding material, and is a key structural part to form an electrical circuit. Lead frames are used in most semiconductor integrated blocks, and are one of the main materials for semiconductor discrete devices and integrated circuit packaging, and are important basic materials in the electronic information industry. As a basic part of the microelectronics industry, lead frames can only meet 50% of the market demand in my country, mainly due to the insufficient production level of high-speed precision stamping lines required for punching lead frames and relying largely on imports, which has become a constraint for my country's micro An impo...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects of low working efficiency, low manufacturing precision and vibration in the high-number precision stamping process of the press in the prior art, the invention provides a servo motor drive, the servo motor drives the active gear through the pulley, and the active gear drives the slave The moving gear runs, thereby driving the crank to move, and the connecting rod connected to the crank pushes the slider to complete the stamping work; through the design of the non-circular gear crank slider mechanism, the press obtains good motion characteristics, thereby completing the high-speed precision stamping of the press

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