INDUSTRY COMPONENT

Locking Lever

A mechanical lever used to secure and lock the tailstock of a lathe or similar machine tool in position during machining operations.

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Component Specifications

Definition
The locking lever is a critical component in machine tool tailstocks, designed to apply clamping force through a cam, wedge, or screw mechanism to rigidly fix the tailstock body to the machine bed. It ensures precise alignment and prevents movement during drilling, reaming, or supporting operations, maintaining dimensional accuracy and operational safety.
Working Principle
Operates on mechanical advantage principles: manual force applied to the lever arm is converted into high clamping force through a cam or eccentric mechanism, creating friction between the tailstock base and machine bed. The over-center or self-locking design maintains position without continuous applied force.
Materials
Typically forged or machined medium-carbon steel (e.g., AISI 1045, C45) for strength and wear resistance. High-wear surfaces may be hardened to 45-50 HRC. Handles often use aluminum or plastic for ergonomics.
Technical Parameters
  • Weight 0.5-2.5 kg
  • Lever Length 150-300 mm
  • Mounting Type Cam-action, Screw-type, or Quick-release
  • Clamping Force 2-8 kN
  • Operating Angle 90-120 degrees
Standards
ISO 230-1, DIN 55027

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Locking Lever.

locking lever tailstock clamp machine tool component lathe accessory mechanical clamping industrial lever Locking Lever in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Tailstock

A movable support component on a CNC lathe that provides axial support to long workpieces during machining operations.

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Tensioning Devices

Mechanical components used to apply and maintain proper tension on tire protection chains

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Engineering Analysis

Risks & Mitigation
  • Insufficient clamping causing tailstock drift
  • Over-tightening damaging machine bed ways
  • Fatigue failure of lever components
  • Ergonomic injury from poor handle design
FMEA Triads
Trigger: Wear on cam surface reducing clamping force
Failure: Tailstock movement during machining
Mitigation: Regular inspection, surface hardening, and replacement of worn components
Trigger: Corrosion in pivot points
Failure: Stiff operation or seizure
Mitigation: Proper lubrication and use of corrosion-resistant materials

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.1 mm for mounting dimensions, ±2° for operating angle
Test Method
Clamping force measured with load cell, wear testing per ISO 6508, functional testing through 10,000 cycles

Buyer Feedback

★★★★☆ 4.9 / 5.0 (39 reviews)

"Found 57+ suppliers for Locking Lever on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Locking Lever is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Locking Lever so far."

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Frequently Asked Questions

What causes a locking lever to become loose during operation?

Common causes include wear on cam surfaces, improper adjustment, contamination with chips/coolant, or fatigue in spring components. Regular inspection and cleaning are recommended.

Can locking levers be retrofitted to older machines?

Yes, but compatibility depends on bed dimensions, mounting hole patterns, and required clamping force. Custom modifications may be needed for optimal performance.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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