This standard specifies the product classification and technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of ordinary bench vises. This standard applies to ordinary bench vises. QB/T 1558.2-1992 Bench vise Ordinary bench vise QB/T1558.2-1992 Standard download decompression password: www.bzxz.net

Light Industry Standard of the People's Republic of China
Bench vise
1 Subject content and scope of applicationwww.bzxz.net
Ordinary bench vise
QB/T 1558.2--1992
This standard specifies the product classification and technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of ordinary bench vises. This standard applies to ordinary bench vises.
2 Reference standards
GB/T1558.1 General technical conditions for bench vises GB/T5305 Packaging, marking, transportation and storage of hand tools 3 Product classification
3.1 Type
Ordinary bench vises are divided into two types: fixed type and rotary type, as shown in Figures 1 and 2. Figure 1 Fixed type
Figure 2 Rotary type
1 Movable jaw body; 2—jaw iron: 3—screw; 4—guide nut; 5—fixed jaw body; 6—base Approved by the Ministry of Light Industry of the People's Republic of China on July 6, 1992 502
Implemented on March 1, 1993
3.2 Basic dimensions
QB/T 1558.2—1992
The basic dimensions of ordinary bench vises are specified in Table I. Table 1
Jaw width A
Opening
Overall dimensions
Basic dimensions
Limit deviation
Note: The opening refers to the distance between the clamping surfaces of the two jaws when the end a of the movable jaw body is aligned with the end b of the fixed jaw body. 3.3 Grades
Ordinary bench vises are divided into light grade (indicated by Q) and heavy grade (indicated by Z) according to their clamping capacity. 3.4 Product marking
The product marking consists of product name, specification, grade code, type and standard number. Example: A 75mm rotary light grade ordinary bench vise is marked as: ordinary bench vise 75Q rotary QB/T1558. 4 Technical requirements
4.1 The screw idle rotation of ordinary bench vise should not exceed 120°4.2 The jaw closing clearance of ordinary bench vise should comply with the provisions of Table 2. Table 2
Closing clearance (max)
The guide rail matching clearance of ordinary bench vise should comply with the provisions of Table 3. 4.3
Guide rail matching clearance (max)
Ordinary bench vise should have the clamping force specified in Table 4. 4.4
Clamping force
Test method
The test method of ordinary bench vise shall be in accordance with the provisions of Chapter 6 of QB/T1558.1. Standard search network
Standard industry information
Inspection rules
QB/T1558.2---1992
The inspection rules of ordinary bench vise shall be in accordance with the provisions of Chapter 7 of QB/T1558.1. Packaging, marking, transportation and storage
The packaging, marking, transportation and storage of ordinary bench vise shall be in accordance with the provisions of GB/T5305. Additional remarks:
This standard is proposed by the Quality Standards Department of the Ministry of Light Industry. This standard is under the jurisdiction of the National Tool Hardware Standardization Center. This standard was drafted by the Shanghai Tool Industry Research Institute with the assistance of the Bench Vise Branch of the China Hardware Products Association. The main drafters of this standard are Lin Meide, Zhang Yuchang and Wang Tao. From the date of implementation of this standard, the former Light Industry Ministry Standard SG90-1982 "Bench Vise" will be invalid. 504
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