GB/T 2861.13-1990 Die guide device B-type removable guide pin GB/T2861.13-1990 Standard download decompression password: www.bzxz.net
Some standard content:
National Standard of the People's Republic of China Guide unit for press tools Guide pillar with taper lead, type BSubject content and scope of application GB/T 2861.13--90 Replaces GB2861.13-81 This standard specifies the materials, heat treatment, technical conditions, structural types and specifications of the taper lead, type B of the guide unit for press tools. This standard applies to rolling guide die frames for press tools. Reference standards GB/T12446 Technical conditions for die frame parts GB/T2861.14 Die guide bushing GB/T2861.15 Die guide GB/T2861.16 Die guide GB70 Hexagon socket head screw YB9 chromium bearing steel technical conditions 3 Guide column materials, heat treatment, technical conditions, structural type and specifications 3.1 Material: GCr15YB 9. 3.2 Heat treatment: hardness HRC62~66. According to the provisions of GB/T12446. 3.3 Technical conditions 3.4 Structural type and specifications are shown in the table. Approved by the State Bureau of Technical Supervision on July 23, 1990. 138 Implementation on May 1, 1991 GB/T2861.1390 3.5 Marking example: Diameter d=20mm, height L. =160mm, thickness H=40mm B-type removable guide column: guide column B20×160×40GB/T2861.13 assembly mold base) GB/T2861.13 144×32 148×36 145×33 145×38 140×33 145×38 180×38 175×43 140×33 145×38 180×38 175×43 175×43 195×43 179× 47 200×47 175 ×48 195×48 175×48 195×48 GB /T 2861.13--90 Parts GB /T 2861.14 18×39 20 ×39 No., name and standard number GB/T 2861.15 12 × 58 8 ×34 GB/T 2861.16 / 14×15 16×20 M16×20 +M5 ×14 M8×280M16x16 Note: Quantity of item number 4 and item number 6: 2 pieces when d is less than or equal to 25mm, 3 pieces when d is greater than or equal to 28mm. 1.10 Taper 1:10 GB/T 2861.13—90 Appendix A Structural type and specification of guide column (Supplement) d(h5)wwW.bzxz.Net Basic size Limit deviation Additional instructions: GB/T2861.13—90 Assembly height 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 Mould Standardization. d2 This standard was drafted by the Mould 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 is entrusted to the Mould Branch of Guilin Electric Science Research Institute of the Ministry of Machinery and Electronics Industry for interpretation. 142 Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.