锻造压机自动换模系统，缩短换产时间的改造思路｜Press Die-Change Automation: Cutting Changeover Time

摘要：多品种锻造，换模停机占用大量时间。讲解锻造设备自动换模，模具库、快速夹紧、台车换模，适用条件。
Abstract: In multi-product forging, die changes consume hours. This article covers die carts, tooling libraries and quick clamping, and when they pay off.

正文： 传统换模，停机，人工拆卸压板，吊入吊出模具，调模，试锻确认，整个过程耗时很久。自动换模目标缩短换产停机时间，提升设备利用率。
Main text: Traditional die changes mean stopping the press, unbolting clamps, crane moves, adjustment and trial forging – hours lost. Automated changeover compresses downtime and lifts utilisation.

主流两种方案
Two mainstream options

• 台车式自动换模：模具预先安装在换模台车上；压机滑块松开夹紧机构，台车驶入压机，模具自动就位，自动夹紧。适合中大型锻压机。
  Die-cart system: dies are pre-mounted on a changeover cart; the slide releases, the cart drives in, dies locate and clamp automatically. Suits medium and large presses.
• 模具库 + 机械手换模：多套模具存放在模具库，机械手抓取模具送入压机，适合中小吨位，品种切换非常频繁场景。
  Die library + robot: a robot shuttles dies between a storage library and the press – good for small and medium presses with very frequent changeovers.

自动化配套条件
Prerequisites

压机需要配置液压自动压板（快速夹紧）；模具标准化，统一模座接口，否则无法实现自动夹持；模具预热可以离线完成。
The press needs hydraulic quick clamps; dies must be standardised with a common die-set interface, or automatic clamping is impossible. Preheating can be done offline.

注意点
Cautions

自动换模硬件投入高，适合产品多、换产频次高企业；如果一年换模次数很少，性价比低，不建议盲目上。换模完成后依然需要首件检验确认锻件质量。
The hardware is expensive – it pays off only with many products and frequent changeovers. If you change dies a few times a year, don’t. First-article inspection is still required after every change.

小结
Summary

自动换模核心收益是压缩换产停机；需要模具标准化作为前提，要评估自身换模频次再决定是否改造。
The core benefit is compressed changeover time; die standardisation is the precondition. Audit your own change frequency before investing.