JB/T 54834-1999
Four-Jaw Independent Chuck - Product Quality Grading
四爪单动卡盘 产品质量分等
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 质量等级评定 → 4 质量等级 → 附录A Foreword → 1 Scope → 2 Normative References → 3 Quality Grade Evaluation → 4 Quality Grades → Appendix A
Scope
This standard specifies the quality grade evaluation and requirements for manual four-jaw independent chucks (hereinafter referred to as chucks). This standard is applicable to the quality grade assessment and grading of chuck products.
本标准规定了手动四爪单动卡盘（以下简称卡盘）的质量等级评定和要求。本标准适用于卡盘产品质量等级考核和分等定级。
Normative References
Keywords
Application Summary AI generated
Manufacturing enterprises use this standard to evaluate the quality grades of four-jaw independent chucks, including qualified, first-class, and premium products. It serves as a basis for product quality assessment, grading, and pricing, helping to improve the overall quality of machine tool accessories.
机械制造企业使用该标准对四爪单动卡盘进行质量等级评定，包括合格品、一等品和优等品。该标准为产品质量考核、分等定级和优质优价提供了依据，有助于提升机床附件的整体质量水平。
AI Summary AI generated
This standard specifies the quality grade evaluation and requirements for manual four-jaw independent chucks, classifying products into three grades: qualified, first-class, and premium. It details technical requirements for each grade, including precision, overload testing, hardness, and part qualification rates, referencing relevant national standards. The standard is applicable to quality assessment and grading of chuck products, providing a unified quality evaluation basis for the machinery manufacturing industry.
本标准规定了手动四爪单动卡盘的质量等级评定和要求，将产品分为合格品、一等品和优等品三个等级。标准详细列出了各等级的技术要求，包括精度、负荷试验、硬度、零件合格率等指标，并引用了相关国家标准。该标准适用于卡盘产品的质量考核和分等定级，为机械制造行业提供了统一的质量评价依据。
Key Sentences extracted from text
本标准规定了手动四爪单动卡盘（以下简称卡盘）的质量等级评定和要求。
卡盘产品的质量等级分为合格品、一等品、优等品。
超负荷试验时（切削深度和扳手力矩按JB/T 6566—1993 中表11 规定值的1.25 倍，每批不少于1 台），试验应正常，试验后卡盘所有零件均不得损坏。
移动卡爪时，卡盘扳手反向空程量一般不大于45°。
主要灰铸铁件硬度应在190~255 HBS 范围内。
This standard specifies the quality grade evaluation and requirements for manual four-jaw independent chucks (hereinafter referred to as chucks).
The quality grades of chuck products are divided into qualified products, first-class products, and premium products.
During overload test (cutting depth and wrench torque at 1.25 times the values specified in Table 11 of JB/T 6566—1993, at least 1 unit per batch), the test shall be normal, and all parts of the chuck shall not be damaged after the test.
When moving the jaw, the reverse idle travel of the chuck wrench shall generally not exceed 45°.
The hardness of main gray iron castings shall be within the range of 190~255 HBS.
Standard Timeline
Changes from replaced version:
- 仅对原标准作了编辑性修改，主要技术内容未变
- Only editorial modifications were made to the original standard; the main technical content remains unchanged.