GB/T 2861.1-1990 Type A guide pins for die guides

GB/T 2861.1-1990 A-type guide pin for die guide device GB/T2861.1-1990 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Guide unit for press tools
Guide pillars, type A
Subject content and scope of applicationbzxz.net
GB/T 2861.1--90
Replaces GB2861.1--81
This standard specifies the materials, heat treatment, technical conditions, structural types and specifications of die guide units
, type A guide pillars. This standard applies to die sliding guide die frames. Reference standards
GB/T 12446
Technical conditions for die frame parts
GB 6991
Technical conditions for high-quality carbon structural steel
Materials, heat treatment, technical conditions, structural types and specifications of guide pillars 3.1 Material: 20 steel GB699.
Heat treatment: carburizing depth 0.8~1.2mm, hardness HRC58~62.3.2
3.3Technical conditions are in accordance with GB/T12446. 3.4
Structural type and specifications are shown in the figure and table.
Approved by the State Administration of Technical Supervision on July 23, 1990, implemented on May 1, 1991
3.5Marking example:
R is determined by the manufacturer.
GB/T2861.1—90
The rest 63
GB 115- 8
Type A guide pillar with diameter d=20mm, limit deviation h5 and length L=120mm: Guide pillar A20h5×120
GB/T 2861.1
Basic dimensions
Limit deviation
(h5）
GB/T 2861.1-90
Basic dimensions
Limit deviation
Basic dimensions
Additional notes:
Limit deviation
(h6）
GB/T 2861.1-90
Basic dimensions
This standard is proposed by the Ministry of Machinery and Electronics Industry of the People's Republic of China. This standard is under the jurisdiction of the National Technical Committee for Mold Standardization. 55
Limit Deviation
This standard was drafted by the Mold Branch of Guilin Electrical Science Research Institute of the Ministry of Machinery and Electronics Industry. The main drafters of this standard are Wang Huachang and Jia Guangwei. This standard is entrusted to the Mold Branch of Guilin Electrical Science Research Institute of the Ministry of Machinery and Electronics Industry for interpretation. (h6)
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