Unlock instant, AI-driven research and patent intelligence for your innovation.

An automatic grinding device and method for positioning holes of circular pile legs

An automatic device, a technology for positioning holes, which is used in grinding machines, grinding/polishing equipment, and machine tools designed for grinding the rotating surface of workpieces. Difficulties and other problems, to achieve the effect of ensuring the matching accuracy and positioning accuracy, avoiding the roundness error of the positioning hole, and shortening the construction period

Active Publication Date: 2017-06-06
COSCO SHIPPING SHIPYARD (NANGTONG) CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the construction of the pile leg structure is very important. In order to ensure the fit and positioning accuracy of the bolt and the positioning hole, higher requirements are put forward for the quality of the positioning hole, and along with the adoption of new materials, the material of the pile leg is selected from ultra-high-strength steel. The carbon content of this kind of steel is extremely high, and various nitrided layers and oxides will be produced after plasma cutting, so the grinding process becomes extremely difficult and cumbersome
[0004] At present, since there is no dedicated inner circle grinding machine, the inner circle can only be ground manually. The degree of automation is low, there are problems such as poor work efficiency and unstable grinding quality, which seriously affects the manufacturing accuracy of the hole and cannot meet the requirements of assembly and positioning. the accuracy of
Moreover, the positioning holes are set on the curved surface of the pile leg cylinder. With the increase of the hole diameter and the wall thickness of the cylinder, the roundness error of the hole and the verticality error of the inside and outside of the plate thickness direction are more difficult to control.

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
  • An automatic grinding device and method for positioning holes of circular pile legs
  • An automatic grinding device and method for positioning holes of circular pile legs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of circular leg positioning hole automatic grinding device provided by the invention, such as figure 1 As shown, including: support 2 and a grinder equipped with a four-degree-of-freedom automatic device,

[0043] in,

[0044] The support 2 has a support foot adapted to a circular curved surface,

[0045] The four-degree-of-freedom automatic device includes an X, Y, and Z-axis translation degree of freedom device and a Z-axis rotation degree of freedom device, and the X, Y, Z-axis translation degree of freedom device and a Z-axis rotation degree of freedom device respectively include a stepper motor.

[0046] Described X, Y axis translation degree of freedom device all comprises stepper motor 7, bearing 3, leading screw 5 and slide block 6, and bearing 3 is arranged on the bearing seat 4, and the bearing seat 4 of X axis translation degree of freedom device is installed on Y On the slide block 3 of the axial translation degree of freedom device, a plane coordi...

Embodiment 2

[0051] According to the automatic grinding device of a circular pile leg positioning hole provided in embodiment 1, such as figure 1 as shown,

[0052] The rotation radius of the rotating arm 15 is adjusted by loosening and clamping the fastening bolt 14 to adapt to the radius of different positioning holes.

[0053] The automatic grinding device is also equipped with a plurality of rotating arms 15 with different lengths.

[0054]When adjusting the length of the rotating arm by loosening and tightening the fastening bolt 14 cannot meet the needs of the radius of the positioning hole that needs to be polished, the rotating arm 15 can be replaced with a rotating arm 15 of other suitable length.

Embodiment 3

[0056] A kind of circular leg positioning hole automatic grinding device provided according to embodiment 1 and 2, such as figure 1 as shown,

[0057] The grinder also includes a pitch arm 17, which is arranged at the end of the rotating arm 15, and the rotating arm 15 and the pitch arm 17 are connected by bolts 16. The bolt 16 is used to adjust the pitch angle (the angle formed by the pitch arm 17 and the swivel arm 15), so as to realize the adjustment of different grinding accuracy of the positioning hole 19, that is, the control of different precision along the inside and outside of the wall thickness direction of the positioning hole.

[0058] The grinding wheel 18 is arranged at the end of the pitch arm 17, and the grinding wheel can be polished automatically, continuously, and in a cycle along the inside of the positioning hole, thereby realizing automatic grinding of the positioning hole.

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

No PUM Login to View More

Abstract

The invention provides an automatic grinding device and method for a round pile leg positioning hole. The automatic grinding device comprises a support and a grinder provided with a four-freedom-degree automatic device. The horizontal movement freedom degree of the positioning hole in the X axis, the Y axis and the Z axis and automatic, continuous and cyclic grinding in the direction of the rotating freedom degree along the Z axis can be achieved, construction reliability is guaranteed while grinding quality is furthermore improved, automatic grinding is achieved, production efficiency is improved, and a brand new construction technology and a brand new construction method are provided for constructing and maintaining pile leg structures.

Description

technical field [0001] The invention relates to the technical field of manufacturing marine engineering equipment, in particular to an automatic grinding device and method for circular pile leg positioning holes. [0002] technical background [0003] In recent years, with the increasing demand for energy, the development of renewable energy has been paid more and more attention. The total amount of wind energy is large, and the global available wind energy is about 10 times that of water energy. Therefore, wind energy is undoubtedly one of the most commercially recognized renewable energy technologies in the world. Due to the increasingly tight land resources of wind farms and abundant offshore wind energy resources, offshore wind power generation is bound to be the development trend of wind power in the future. Wind power operation ships are the core technology of offshore wind farm construction. The alternate matching of positioning holes realizes the interaction between ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B24B5/48
CPCB24B5/48
Inventor 顾翔姜明孙博文卢轶谢立强王振刚廖建平
Owner COSCO SHIPPING SHIPYARD (NANGTONG) CO LTD