V priemysle výroby spojovacích materiálov, ohýbanie v dlhých skrutkách po tepelnom spracovaní je univerzálnym bodom bolesti. Tradičné “ručné kladivo” je nielen neefektívne, ale tiež nezaručuje konzistentnú presnosť. This article shares a specialized Riešenie na automatické vyrovnávanie skrutiek: demonštruje, ako automatizácia pomohla indickému klientovi prejsť z “8-manuál pre osobu” do a “jednoosobový, multi-stroj” produkčný model pri konzistentnom dosahovaní priamosti do 0,1 mm.
What is the Bolt？
Bolts are foundational fasteners for the machinery, výstavby, a automobilovom priemysle. The typical workpiece for this solution is a high-strength long bolt: 15priemer mm, 340dĺžka mm.
Structural Features and Challenges
- High L/D Ratio: The 340mm length makes the bolt highly susceptible to an initial bend of 0.5mm – 1.5mm after heat treatment.
- Precision Requirements: While the client required straightness within 0.2mm, this solution consistently achieves under 0.1mm.
- Protection Requirements: The straightening process must ensure zero damage to thread precision and surface quality.
Why Bolt Straightening Must Move Away from “Manual Hammering”
Traditional Process vs. Automated Solution
| Bod bolesti | Manual Hammering / Manual Press | Automated Straightening Solution |
| Pracovná požiadavka | 8 Workers (shift rotation) | 1 Operator for 4 Machines |
| Priamosť | 0.2mm – 0.5mm (unstable) | ≤ 0.1mm (extrémne stabilný) |
| Cycle Time | 120 – 180 sekúnd / kus | 10 – 15 sekúnd / kus |
| Overall Cost | Massive financial and labor drain | Labor costs reduced by over 90% |
Automated Bolt Straightening Process Flow
This solution covers a full closed-loop automated process from feeding to sorting, ensuring every bolt meets high-standard delivery requirements.
Core Process Descriptions
- Auto-Feeding: Bent bolts are automatically fed from a hopper into the straightening station without human intervention.
- Dynamic Measurement: High-precision sensors scan the rotating workpiece in real-time, accurately capturing the maximum bend point across the entire length.
- Servo Pressing: The smart system automatically calculates spring-back based on the material (carbon steel/alloy steel), and the servo ram applies precise pressure for a single-pass correction.
- Auto-Sorting: Qualified bolts proceed to the next stage, while non-conforming parts are automatically isolated, ensuring a 100% yield rate.
Stroj na vyrovnávanie skrutiek UBJ-80
Táto rovnačka je ideálna pre tepelne spracované hotové diely (napr., komponenty lisovacích/kancelárskych strojov, diely na auto/motocykle, nástrojov, skrutky) a bary (oceľ, meď, hliník, nehrdzavejúca oceľ, zliatina titánu) s dĺžkou 60-600 mm & Priemer φ3–φ25 mm. Zvyšuje presnosť a kvalitu produktu.
Hlavné výzvy a riešenia narovnania
Výzva 1: Achieving the “1 Operator for 4 Machines” Efficiency Revolution
Popis problému: Traditional Indian fastener factories rely on cheap labor, which leads to management chaos and low yield rates.
Solution:
Our solution implements full closed-loop automation. The operation logic is extremely simple, with built-in recipes for various bolt specifications. A standard worker only needs to refill the hopper periodically; the rest—measurement, rovnanie, and inspection—is handled automatically by the machine. This solves labor shortages and eliminates precision drops caused by fatigue.
Výzva 2: Guaranteeing Consistency within 0.1mm Precision
Popis problému: When a bolt is subjected to hammer strikes, internal stress distribution becomes uneven, often leading to over-correction in localized areas.
Solution:
The solution utilizes a fully parameterized servo control system. Unlike vague human judgment, sensors detect the bolt’s axial curve with micron-level accuracy. Through multi-step servo algorithms, the system precisely overcomes the elastic spring-back of S45C or alloy steels, locking the final straightness within 0.1mm.
Výrobný kufrík: The Indian Client’s Fourth Choice
Zázemie zákazníka
A well-known Indian fastener supplier providing components for global construction machinery brands.
Výsledky implementácie
- Repeat Orders: Based on the outstanding performance of the first three units, the client recently purchased their 4th machine.
- Massive Cost Reduction: Currently, one operator manages all 4 machines, increasing production efficiency by more than 10 krát.
- Quality Benchmark: Bolt straightness improved from 0.2mm to under 0.1mm, helping the client secure more high-end international contracts.
často kladené otázky
- Q: Will the straightening ram damage the bolt threads?
- Nie. We have designed non-contact, cushioned protection molds specifically for bolt straightening. The press blocks match the bolt’s curvature perfectly, ensuring even force distribution and avoiding surface indentations.
- Q: Can the equipment integrate into our factory’s MES system?
- áno. Our control system features standard data interfaces to record and export real-time straightening data for every bolt, meeting modern traceability requirements.
Zhrnutie
For fastener factories pursuing high efficiency and quality, an Riešenie na automatické vyrovnávanie skrutiek is the essential path to increased competitiveness. Whether it is to cut labor costs by 90% or to achieve 0.1mm delivery precision, automation technology provides the most stable return on investment.
If you are facing labor management issues or precision bottlenecks, feel free to Kontaktuj nás for a customized technical proposal.