Method for processing pressing sleeve hole of large diameter in top and bottom cross member of oil press

A processing method and hydraulic press technology, applied in the field of hole processing, can solve the problems of not processing large-diameter holes and not being able to process them, and achieve the effect of reducing tool costs and production costs

Inactive Publication Date: 2009-05-27
SHANGHAI HEAVY MACHINERY PLANT
View PDF0 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Large-diameter holes are generally processed on large-scale boring and milling machines, but due to the structure, size, weight and other reasons of parts, it is impossible to process the large-diameter pressure sleeves o

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for processing pressing sleeve hole of large diameter in top and bottom cross member of oil press
  • Method for processing pressing sleeve hole of large diameter in top and bottom cross member of oil press
  • Method for processing pressing sleeve hole of large diameter in top and bottom cross member of oil press

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] like figure 1 As shown in the figure, the processing method of the large-diameter press-fitting holes in the upper and lower beams of the hydraulic press of the present invention is used for the four design diameters of the upper and lower beams in the 165MN free forging hydraulic press. After processing, the opening size between the four pressing holes after processing is 8950±0.2mm×3550±0.15mm, and the diagonal size between the four pressing holes is the same. The processing process is divided into the following steps:

[0038] Step 1, rough machining; use the horse platoon of the soil machine tool for rough machining;

[0039] The first step, preparation: place the workpiece flat on the worktable, cushion it, cushion it hard, align it, pass through the horse row, and align it according to the round holes at both ends;

[0040] The second step is to rough boring four Φ1142F9 / Φ1150F9 holes with 10mm allowance on one side, and the bottom plane of rough milling holes w...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Heightaaaaaaaaaa
Login to view more

Abstract

The invention discloses a processing method used for a large-diameter pressing sleeve hole in the upper and lower crossbeam of an oil hydraulic press. The method is used for processing four pressing sleeve holes (with the design diameter of 1142F9/1150F9 and the depth of 2100 plus or minus 0.1mm) of the upper and lower crossbeam in the oil hydraulic press of 165MN; the open size among the four processed pressing sleeve holes is 8950 plus or minus 0.2 multiplied by 3550 plus or minus 0.15mm; furthermore, the diagonal sizes of the four pressing sleeve holes are consistent; the process comprises the steps as follows: step 1: rough machining; a first step is preparation; a second step is that allowance of 10mm on single surface is retained for heavy boring and allowance of 10mm on single surface is retained for rough milling; step 2: semi-finishing; a first step is preparation; a second step is that, allowance of 1mm on single surface is remained for semi-finishing boring by a boring machine, the allowance of 1mm is retained for semi-finishing milling on single surface by a boring machine, a third step is that the allowance of 1mm is retained for semi-finishing milling by a sidecutter head, and a fifth step is that the open size and the diagonal size are measured; step 3: finish-processing; a first step is that the finish-boring is carried out by a boring machine and a second step is that the finish-milling is carried out by the sidecutter head.

Description

technical field [0001] The invention relates to a method for processing holes, in particular to a method for processing large-diameter pressing holes in upper and lower beams of a hydraulic press. Background technique [0002] The 165MN free forging hydraulic press is currently the largest press with the largest working tonnage designed and manufactured in China. The upper and lower beams are required in the press. The upper beam is ZG20MnMo steel casting, the overall size is 10700×5300×4150mm, and the net weight is 345 tons. The lower beam is an assembly part, which is assembled from the middle section I of the lower beam, the middle section II of the lower beam and the extended section of the lower beam with a combination of tie rods, nuts and key blocks. . [0003] like figure 2 , image 3 , Figure 4 Shown is the structure diagram of the upper beam. There are four pressing holes of the same size on the upper and lower beams. The design diameter of the pressing holes ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B23P15/00B23P13/00B23B41/02B23C3/00
Inventor 张宏林程志家刘巽强
Owner SHANGHAI HEAVY MACHINERY PLANT
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap