CN112404902B

CN112404902B - Method for manufacturing and forming arc-shaped support on upper part of saddle of overhead warehouse

Info

Publication number: CN112404902B
Application number: CN202011248817.2A
Authority: CN
Inventors: 陈明; 吴小庆; 孙建军; 俞华
Original assignee: Shanghai Baoye Group Corp Ltd
Current assignee: Shanghai Baoye Group Corp Ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2022-03-15
Anticipated expiration: 2040-11-10
Also published as: CN112404902A

Abstract

The invention relates to a method for manufacturing and forming an arc-shaped bracket on the upper part of a saddle of an elevated warehouse, which comprises the following steps of firstly, selecting the thickness of a steel plate; secondly, processing and forming the arc plate; thirdly, eliminating or reducing the welding stress of the component by using a vibration method or a heat treatment method, and checking the size of the component; fourthly, dividing the shell ring; polishing to remove surface cutting slag and edges and corners; fifthly, hoisting the member on a lathe to machine the outer surface of the whole shell ring; and sixthly, hanging the machined component on a roller frame, sequentially cutting the cylinder sections along the longitudinal direction according to the original cutting seam by using a flame cutting machine, and continuously cutting the allowance of the two sides of the component in the arc length direction to form an arc-shaped support. The invention has wide application value in the aspect of processing the saddle of the elevated warehouse.

Description

Method for manufacturing and forming arc-shaped support on upper part of saddle of overhead warehouse

Technical Field

The invention relates to a method for manufacturing and forming an arc-shaped support at the upper part of a saddle of an elevated warehouse.

Background

Overhead warehouse systems are an important component of modern logistics systems. In the aluminum industry project, the elevated warehouse is mainly used for storing and transferring aluminum coils, hot rolling, cold rolling and finishing workshops are connected in series, and a tunnel stacker is used for automatically discharging and storing the aluminum coils. The elevated warehouse mainly comprises a goods shelf, a transmission device, a storage device, a stacker, a ventilation system, a control system and the like, wherein a saddle belongs to one part of a goods shelf structure, and an arc section at the upper part of the saddle is a key component of the goods shelf (the type of the saddle is shown in figure 1, and the type of the section of a bracket at the upper part of the arc section is shown in figure 2). The saddle in the original elevated warehouse project is a common component, the quality requirement is not high, the upper surface of the saddle has no groove and finish requirement, and the saddle can be formed by a conventional method without machining after welding.

With the requirement improvement and the technical development of modern logistics systems, the traditional overhead warehouse advances to an intelligent warehouse, and the whole process of component warehouse-in and component warehouse-out is completed through a computer network management and automatic control system. A communication system and a computer management monitoring system are correspondingly added in the overhead warehouse system. The intelligent control of the aluminum coil member inevitably requires the improvement of the manufacturing and mounting precision of the goods shelf, and the manufacturing requirement of the key component of the goods shelf, namely the upper arc-shaped section bracket 1, is also improved. The high quality requirement of the arc-shaped section bracket component is embodied in the following aspects: (1) the maximum deviation of the arc degree of the cambered surface of the upper surface is 3 mm; (2) the maximum deviation of the longitudinal straightness of the upper surface is 2 mm; (3) the roughness of the upper surface plane and the grooves is maximum Ra25 μm; (4) the other linear dimensions deviate by + -2 mm, see FIG. 2.

The conventional component manufacturing method of blanking, rolling, assembling, welding and correcting cannot meet the component requirements.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, provides a method for manufacturing and forming an arc-shaped support on the upper part of a saddle of an elevated warehouse, and solves the technical problem of processing and forming.

In order to solve the technical problem, the invention is realized as follows:

a method for manufacturing and forming an arc-shaped support at the upper part of an overhead warehouse saddle is characterized by comprising the following steps:

firstly, selecting the thickness of a steel plate: the upper surface of the component is provided with grooves and has roughness requirements, so that the arc plate needs to be thickened by using a steel plate raw material in consideration of mechanical processing after welding so as to ensure enough processing allowance;

secondly, arc plate processing and forming: according to the thickness of the arc plate and the radius of the inner side, calculating the material demand required for rolling the whole section of the cylinder with the radius, then blanking, and rolling and forming: the inner diameter of the shell ring is consistent with that of the component, and the shell ring is corrected and welded with a longitudinal seam; installing the rest parts of a plurality of sets of arc-shaped section supports inside the shell ring discontinuously, and welding: several sets of support parts can be installed in the shell ring, and nondestructive detection is carried out on the welding seam according to the angle determination of the arc-shaped plate, namely the installation space and the welding position of a welder are considered, and the subsequent sufficient segmentation position is considered;

thirdly, eliminating or reducing the welding stress of the component by using a vibration method or a heat treatment method, and checking the size of the component;

fourthly, scribing lines at the middle parts of the two groups of arc-shaped supports along the longitudinal direction, and dividing the shell sections along straight lines; incomplete cutting and disconnection are carried out along the longitudinal direction during flame cutting, so that a complete shell ring is ensured to be transferred to the next procedure, and surface cutting slag and edges and corners are polished and removed;

hoisting the component on a lathe to perform mechanical processing on the outer surface of the whole shell ring, roughly turning to remove surface allowance, turning a groove and an arc angle, and finely turning to meet the requirement of design roughness;

and sixthly, hanging the machined component on a roller frame, sequentially cutting the cylinder sections along the longitudinal direction according to the original cutting seam by using a flame cutting machine, and continuously cutting the allowance of the two sides of the component in the arc length direction to form an arc-shaped support.

The invention has the beneficial effects that: the integral cylinder is rolled, the parts of the arc-shaped support are assembled and welded in the cylinder, stress is eliminated integrally, and then the integral cylinder is machined, so that a technical route is provided for machining the arc-shaped support with high quality requirements. Has wide application value in the aspect of processing the saddle of the elevated warehouse.

Drawings

The invention is described in further detail below with reference to the following figures and embodiments:

figure 1 is a schematic view of a saddle.

Fig. 2 is an enlarged schematic view of a point a in fig. 1.

Fig. 3 is a schematic view of the arc-shaped bracket processing.

Fig. 4 is a schematic view of the completion of the arc-shaped stent.

Detailed Description

As shown in fig. 3 and 4: a method for manufacturing and forming an arc-shaped support on the upper part of an overhead warehouse saddle comprises the following steps:

firstly, selecting the thickness of a steel plate: the upper surface of the component is provided with grooves and has roughness requirements, so that machining after welding is considered, and the steel plate raw material for the arc plate needs to be thickened by 4-5 mm to ensure enough machining allowance.

Secondly, arc plate processing and forming: calculating the material demand required for rolling the whole section of the cylinder with the radius according to the thickness of the arc plate and the radius of the inner side, then blanking, rolling and forming (the inner diameter size of the cylinder section is consistent with the inner diameter size of the component), correcting and longitudinally welding seams; a plurality of sets of rest parts of the arc-shaped section support are discontinuously arranged in the shell ring and are welded (a plurality of sets of support parts can be arranged in the shell ring and are determined according to the angle of the arc-shaped plate, namely the installation space and the welding position of a welder need to be considered, and the follow-up sufficient cutting positions, generally 8 sets or 6 sets, need to be considered). See fig. 3. And carrying out nondestructive testing on the welding seam according to the design requirement.

And thirdly, eliminating or reducing the welding stress of the component by using a vibration method or a heat treatment method, and checking the size of the component.

And fourthly, scribing lines at the middle parts of the two groups of arc-shaped supports along the longitudinal direction, and dividing the cylinder sections along a straight line. The flame cutting is not completely cut and disconnected along the longitudinal direction, 3 preserved positions (each position is about 50mm long) at the two ends and the middle part are not cut, and the condition that a complete cylinder section is transferred to the next working procedure is ensured. And grinding to remove surface cutting slag and edges and corners.

And fifthly, hoisting the component on a lathe to machine the outer surface of the whole shell ring, roughly turning to remove surface allowance, turning a groove and an arc angle, and finely turning to meet the requirement of design roughness.

And sixthly, hanging the machined component on a roller frame, sequentially cutting the cylinder sections along the longitudinal direction according to the original cutting seam by using a flame cutting machine, and continuously cutting the allowance of the two sides of the component in the arc length direction to form an arc-shaped support. See fig. 4.

Claims

1. A method for manufacturing and forming an arc-shaped support at the upper part of an overhead warehouse saddle is characterized by comprising the following steps:

secondly, arc plate processing and forming: according to the thickness of the arc plate and the radius of the inner side, calculating the material demand required for rolling the whole section of the cylinder with the radius, then blanking, and rolling and forming: the inner diameter of the shell ring is consistent with that of the component, and the shell ring is corrected and welded with a longitudinal seam; installing the rest parts of a plurality of sets of arc-shaped section supports inside the shell ring discontinuously, and welding: several sets of support parts can be installed in the shell ring, the angle of the arc-shaped plate is determined, the installation space and the welding position of a welder are considered, the subsequent enough cutting position is considered, and nondestructive detection is carried out on the welding seam;