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Machining deformation precision control method for super-long large-diameter concrete tube pile steel mould

A concrete pipe pile, precision control technology, applied in the direction of manufacturing tools, ceramic molding machines, etc., can solve the problems of difficulty in quality control, increased risk, high requirements, etc., to overcome the difficult control of deformation precision, improve production efficiency, shorten The effect of the production cycle

Active Publication Date: 2017-03-15
JIANGSU HAI HENG BUILDING MATERIAL MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the manufacture of ultra-long-diameter pipe pile steel molds has higher requirements for production technology and process equipment, and the difficulty and risk of quality control will increase accordingly. Therefore, how to scientifically and reasonably control super-long-diameter pipe pile steel molds Precision manufacturing is a necessary condition for the manufacture of super long diameter pipe piles

Method used

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  • Machining deformation precision control method for super-long large-diameter concrete tube pile steel mould
  • Machining deformation precision control method for super-long large-diameter concrete tube pile steel mould
  • Machining deformation precision control method for super-long large-diameter concrete tube pile steel mould

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Experimental program
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Effect test

Embodiment 1

[0030] Φ1400×390000 pre-tensioned prestressed concrete pipe pile steel mold processing: steel mold processing is carried out according to the following procedures: 1. Cutting preparation, including semicircular steel mold cylinder, ring reinforcement, longitudinal reinforcement, tongue and groove plate, end connection Plates, running wheels, ribs, clamping bolts. The semi-circular steel mold cylinder is pressed on a 6-meter-long pressure forming machine. 2. Spot installation, hoist the semicircular steel mold cylinder, tongue and groove plate, running wheel, longitudinal rib, ring rib and rib plate to the spot loading platform in sequence, and spot weld them firmly according to the design requirements. The corresponding clamping molds of the two semicircular steel mold cylinders are connected into a complete circle by clamping bolts. 3. Welding, hoist the spot-welded steel mold to the large welding frame, and complete the welding according to the symmetrical welding sequence ...

Embodiment 2

[0045] Φ1200×44600 pre-tensioned prestressed concrete pipe pile steel mold processing is carried out according to the following procedures: 1. Cutting preparation, including semi-circular steel mold cylinder, ring reinforcement, longitudinal reinforcement, tongue and groove plate, end connection plate , running wheels, ribs, clamping bolts. The semi-circular steel mold cylinder is pressed on a 6-meter-long pressure forming machine. 2. Spot installation, hoist the semicircular steel mold cylinder, tongue and groove plate, running wheel, longitudinal rib, ring rib and rib plate to the spot loading platform in sequence, and spot weld them firmly according to the design requirements. The corresponding clamping molds of the two semicircular steel mold cylinders are connected into a complete circle by clamping bolts. 3. Welding, hoist the spot-welded steel mold to the large welding frame, and complete the welding according to the symmetrical welding sequence welding process. 4. Ca...

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Abstract

The invention discloses a machining deformation precision control method for a super-long large-diameter concrete tube pile steel mould. The method comprises the following steps of 1, firstly, rolling a hot-rolling plate into semicircular steel mould barrel bodies through a compression moulding press, and conducting straightening to eliminate deformation caused by springback generated in the rolling process, so that sufficient straightness precision requirements are obtained; 2, splicing the semicircular steel mould barrel bodies into a super-long large-diameter semicircular steel mould barrel body with length ranging from 12 meters to 20 meters through welding; 3, welding reinforcing ribs on the outer wall of the super-long large-diameter semicircular steel mould barrel body symmetrically, and conducting secondary straightening and flattening; and 4, closing a female mould and a male mould, and conducting overall finishing machining on the outer circle and the end face of a running wheel and a steel mould end connection plate through a super-long heightened horizontal type straight line finishing machining machine tool. By means of the machining deformation precision control method, the defect that in existing manufacturing machining technologies, deformation precision is difficult to control can be effectively overcome; and straightness of the inner wall of the obtained steel mould is controlled within the range, namely L / 4000, of length L of the steel mould, and coaxiality is controlled within the range of + / - 2mm.

Description

technical field [0001] The invention relates to the technical field of building material machinery manufacturing, in particular to a method for controlling the machining deformation accuracy of a super long-diameter concrete pipe pile steel mold. Background technique [0002] Steel formwork for pipe piles is the main consumable part of complete sets of construction equipment for urban capital construction, large bridges, and port construction, and is used for the construction of pretensioned prestressed concrete piles in construction projects. The steel mold is usually made of upper and lower molds with a length of 8000-55000mm and a diameter of 300-1400mm. The upper mold and the lower mold are welded to form a welded structure with a certain rigidity. The manufacture of steel molds needs to ensure that the upper and lower cylinders can be accurately molded, that there is no leakage of cement slurry during operation, and that the molds are easy to clean after use. Since the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B7/00B21D3/10
CPCB21D3/10B28B7/00
Inventor 陈益民
Owner JIANGSU HAI HENG BUILDING MATERIAL MACHINERY CO LTD
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