GB/T 2855.10-1990 Die sliding guide die seat intermediate guide column lower die seat

GB/T 2855.10-1990 Die sliding guide die seat intermediate guide column lower die seat GB/T2855.10-1990 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Sliding guide die holder
Intermediate guide pillar lower die holder
Holder for ball slide dte sets for press toolsDle holder for center pillar setsSubject content and scope of application
GB/T 2855.10—90
Replaces GB2855.10-81
This standard specifies the materials, technical conditions, structural types and specifications of sliding guide die holders and intermediate guide pillar lower die holders for punching dies. This standard applies to sliding guide die sets for punching dies. Referenced standards
Technical conditions for die set parts
GB/T12446
GB9439Grey iron castings
Materials, technical conditions, structural types and specifications of die holders3
3.1Material: HT200
3.2Technical conditions are in accordance with GB/T12446. 3.3Structural types and specifications are shown in the table.
Approved by the State Administration of Technical Supervision on July 23, 1990 and implemented on May 1, 1991
GB/T2855.10-90
3.4Marking example:
Die perimeter L=250mm, B=200mm, thickness H=50mm, middle guide column lower die seat: lower die seat 250×200×50GB/T2855.1036wwW.bzxz.Net
Mountain die perimeter
7060125100
130110
170270230
GB/T 2855.10 --90
d,(R７)
Limit deviation basic dimension
Basic dimension
Limit deviation
Die boundary
250||200
315250
LIBLB?
GB/T 2855.10-90
210370270
410325550400
510f655590580
Basic dimension
Limit deviation
d (R7)
Basic dimension
Note, ①The shape and plane dimension of the platen are determined by the manufacturer. ②When installing B-type guide column, d(R7), d, (R7) are changed to d(H7), d, (H7). 38
Limit Deviation
GB/T2855.10-—90
Additional Notes:
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. This standard was drafted by 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 is entrusted to the Mold Branch of Guilin Electric Science Research Institute of the Ministry of Machinery and Electronics Industry for interpretation. 39
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