GB/T 2851.4-1990 Narrow die frame with rear guide pins for punching die sliding guide frame GB/T2851.4-1990 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Sliding guide dle sets for press tools
Back pillar narrow set
Sliding guide dle sets for press toolsBack pillar sets (narrow )
Subject content and scope of application
GB/T 2851.4--90
Substitute GB 2851.4--81
This standard specifies the structural type, specifications and technical conditions of the back pillar narrow set of sliding guide dies. This standard applies to dies for press dies. Reference standards
Technical conditions for die frames
GB/T 2854
GB/T2855.7 Narrow upper die frame with rear guide pins for die sliding guide base GB/T2855.8 Narrow lower die frame with rear guide pins for die sliding guide base, A-type guide pins for die guide device
GB/T 2861.1
GB/T2861.6 Structural type, specifications and technical conditions for die frames with A-type guide sleeves for die guide device 3
3.1 Technical conditions shall be in accordance with the provisions of GB/T2854. 3.2 Structural type and specifications are shown in the figure and table.
Approved by the State Administration of Technical Supervision on July 23, 1990 136
Implementation on 199105-01
GB/T 2851.4-0
3.3 Marking example:
Die perimeter L=355mm, B=125mm, closing height H=200~245mm, diagonal folding die frame with grade 1 accuracy
Mold frame 355×125×200~2451GB/T2851.4137
Bo Ji clear boundary
Combined height
(reference)
GB/T 2851.4-90
Part number, name and sight number
GB:T 2855.7 IGB/T 2855.8
250 × 80 × 45
315 × 80 × 45
315x100 ×45bzxZ.net
100 ×100 × 50
355*12550
500×125×50
300 1611 ~ 55
710 ·[60 >55
630 - 200 * 60
8u0 20e × 60
250 × 80 ×50
315× 80 ×50
315 ×100 × 55
400 ×101 ~60
355 ×125 60
500 × (25 * 65
500° [60 70
7101 × 160 × 70
630 + 201 75
800 200 75
32
40 ×-
GB/T2861.6
32×105×43
105×43
115 ×43
40 × 115 48
45×125× 8
50 ~140 3
55×160×58
GB/T2851.4—90
Additional Notes:
This standard was proposed by the Ministry of Machinery and Electronics Industry of the People's Republic of China. This standard was issued by the National Technical Committee for Mold Standardization. This standard was drafted by the head of the Mold Branch of Guilin Electric Science Research Institute of the Ministry of Machinery and Electronics Industry. The main drafters of this standard are Wang Huachang and Qin Guangwei. This standard was entrusted to the head of the Mold Branch of Guilin Electric Science Research Institute of the Ministry of Machinery and Electronics Industry for interpretation.439
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