Overview
A V-Block is a fundamental tool in machining and metrology, designed to hold cylindrical or round workpieces securely. Its V-shaped groove provides consistent centering, making it indispensable for tasks like drilling, milling, or inspection. Commonly made from durable materials like tool steel or cast iron, V-Blocks are available in various sizes and precision grades to suit industrial needs. Some advanced models include magnetic bases or clamps for enhanced stability during operations. Their simplicity and reliability have made them a staple in workshops, quality control labs, and manufacturing floors worldwide.
Structure and Working Principle
The V-Block consists of a solid base with a precisely angled V-groove (typically 90 degrees) to cradle cylindrical objects. The groove’s geometry ensures the workpiece’s centerline remains aligned, even when rotated. Many blocks feature clamping mechanisms or threaded holes to secure the workpiece further. Magnetic V-Blocks use embedded magnets to hold ferrous materials, eliminating slippage during high-precision tasks. The block’s flat underside allows it to be mounted on machine tables or surface plates, ensuring repeatable accuracy in measurements or machining processes.
Key Features
Precision-ground surfaces are a hallmark of quality V-Blocks, with tolerances often within 0.0001 inches for metrology-grade units. Hardened materials resist wear, while corrosion-resistant coatings extend tool life in harsh environments. Modular designs with adjustable clamps or interchangeable jaws offer versatility for irregularly shaped workpieces. Some blocks include graduated scales or center marks for quick alignment. Magnetic variants are particularly valued in grinding applications, where they prevent workpiece movement without physical clamping.
Application Areas
V-Blocks are widely used in machining workshops for operations like drilling concentric holes or milling flats on round stock. In metrology, they facilitate precise measurement of diameters, roundness, or runout when paired with dial indicators. They also serve in welding setups to position pipes or rods and in inspection processes to verify cylindrical part dimensions. Industries such as aerospace, automotive, and toolmaking rely on V-Blocks for their accuracy and repeatability in high-stakes manufacturing.
Maintenance and Precautions
Regular cleaning with a solvent and light oil coating prevents rust on non-coated blocks. Avoid abrasive cleaners that could damage precision surfaces. Store in a dry environment, preferably in protective foam or cases. Inspect the V-groove periodically for nicks or wear, as imperfections compromise accuracy. For magnetic blocks, demagnetize workpieces after use to avoid residual magnetism affecting future measurements. Always handle with care to avoid dropping, which can misalign the critical surfaces.
B2B Procurement Guide
Industrial buyers should prioritize blocks with ISO or DIN certifications for guaranteed precision. Assess the workpiece size range and choose blocks with adequate load capacity. Magnetic versions are ideal for ferrous materials but require power sources in some models. Bulk purchases often attract discounts, especially for standard sizes. Verify supplier warranties and post-sale support for calibration services. For specialized applications, custom blocks with unique angles or coatings can be sourced from precision tool manufacturers.
Related Manufacturers
- 主营：电动平车、轨道平车、地平车、纵横移动搬运车、电动搬运车、低压轨道车、电缆卷筒搬运车、电动转盘、平车配件
- 主营：轨道平车、电动平车、轨道车、台面V型架、过跨车、转运车、平板车、地平车、电动平板车、钢包车、平台车、牵引车、AGV、RGV、RGV小车、运输车、无轨平车、自动化小车、轨道穿梭小车、搬运车
- 主营：劳保鞋、点塑手套、防尘口罩、织带型、abs安全帽、透气安全帽、一次性口罩、空气呼吸器、充气泵、气体检测仪、安全鞋、防化服、防毒面具
- 主营：电动平车、轨道平车、轨道平板车、rgv、agv、轨道车、电动平板车、过跨车、无轨平板车、轨道搬运车、公铁两用车、蓄电池轨道车、低压轨道车、电动搬运平车、无轨电动平车、蓄电池电动平车、地平车、电动转盘、无轨车、轨道摆渡车、电动牵引车、平板拖车、自动化小车、台车、转运车
- 主营：大理石平台、比测台、机床垫铁、T型槽检验平板、大理石构件、铸铁平台、风琴防护罩、测量工作台、钢板防护罩、花岗石测量平台、铸铁划线平台、斜垫块、铝镁合金平尺、三维柔性焊接平台、铝镁平尺、机床调整垫铁、数控机床垫铁、铸铁弯板、大理石方尺、花岗石垂度方尺、大理石机械构件Q23、Q235垫片、防震垫铁
- 主营：水平仪、光滑塞规、焊接平台、铸铁v型架、铸铁地轨、铸铁方箱、铸铁方尺、铸铁平台、键槽塞规、工字卡板、检验平台、防震垫铁、测量平台、机械滑台、光滑环规、划线平台、床身铸件、对弧样板、等高垫块、螺纹环规、铸铁直角尺、花岗石平台、大理石方箱、大理石平尺、大理石平台
- 主营：铸铁平台、三维柔性焊接平台、大理石平台、V型块、地轨、机床铸件、大理石构件、方箱、弯板、垫铁、地锚器
- 主营：测量规、平垫铁、水平尺、工字型卡板、检验棒、机床主轴、极限塞规、研磨平板、调整垫铁、矩形花键、镁铝平尺、光滑量规、铸铁平台、检测平台、光滑塞规、检验方箱、螺纹塞规、检测工具、螺纹环规、莫氏锥度规、大理石平尺、大理石方箱、铸铁偏摆仪、大理石方尺、大理石平台
- 主营：V型块、铸铁平台
- 主营：电动平车、轨道平车、无轨平车、电动平板车、蓄电池轨道平车、无轨电动平车、轨道电动平车、过跨车、地平车
- 主营：测量尺、铸铁平台、焊接平台、t型槽检测平板、t型槽方箱平台、大型铸铁工作台、精制量具、机床工作台、焊接工作台、铸铁检验方箱、机床调整垫铁、数控床身铸件、大理石直角尺、数控机床身铸件
- 主营：防爆工具、手摇警报器、手摇报警器、磁性V型架、防爆扳手、敲击扳手、花岗岩平台、铜扳手、铜锤、铸铁平台、检测平台、阀门扳手、垫铁、研磨平台、镁铝平尺、检验平台、方箱、敲击梅花扳手、大理石平台、防爆手锤、防爆手拉葫芦、防爆套筒、防爆锹
- 主营：变位机、定制铸铁平台、焊接工装夹具、测量划线平台、柔性焊接平台、焊接装配灰铸铁平台、花岗岩检验平台、多孔径柔性焊接平台、渗氮铸铁三维平台、Q355钢制三维柔性、大理石方箱、渗氮焊接工作台、180°螺旋压紧器、大理石平台、震动实验平台、多功能定位夹具、铸铁方箱、铸铁垫箱、铸铁平台、焊接平台、地轨、弯板、方箱、铸铁地轨、铸铁平板
- 主营：大理石平台、大理石平板、大理石机械加工、v型块、大理石量具、花岗石平台量具、铸铁平台量具
- 主营：三维柔性焊接平台、铸铁焊接工装台、铸铁检验平台、T型槽铸铁平台、铸铁T型槽工作台、铸铁平板、检验平台、焊接平板、划线检验平台、铸造检验平板、铆焊平板、装配平台、机床增高工作台、机床辅助工作台、落地镗床工作台、铸铁方箱、机床铸件、床身、斜铁