CN211027527U

CN211027527U - Target ball fixer for horizontal top surface of rolling mill

Info

Publication number: CN211027527U
Application number: CN201922043410.5U
Authority: CN
Inventors: 徐建峰; 郭立平
Original assignee: Shanghai Dingye Metallurgy Technology Co ltd
Current assignee: Shanghai Dingye Metallurgy Technology Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-07-17
Anticipated expiration: 2029-11-22

Abstract

A target ball holder for a horizontal top surface of a rolling mill for rolling mill parameter measurement, the target ball holder comprising: the top cover is embedded with a magnet, and the target ball is attracted and fixed on the top cover surface by magnetic force; the top cover is sleeved at one end of the connecting rod; the connecting rod base is sleeved at the other end of the connecting rod and internally provided with a magnet sheet, and the connecting rod base is provided with a contact surface which is used for contacting with the horizontal top surface of the rolling mill; the telescopic rod interface is provided with a right-angle bent pipe and is used for connecting and fixing the telescopic rod; the upper part of the clamping sleeve is used for fixedly fastening the connecting rod sleeve, and the lower part of the clamping sleeve is used for fixedly fastening the telescopic rod interface sleeve.

Description

Target ball fixer for horizontal top surface of rolling mill

Technical Field

The utility model belongs to the technical field of the metallurgical measurement, in particular to a target ball fixer for rolling mill horizontal top surface.

Background

Due to the limitation of the steel rolling process of a steel rolling mill, the working environment of the steel rolling mill is poor, and negative factors including high temperature, dust, oil stain, noise, radiation and the like have negative effects on field rolling mill equipment and workers. High temperature and high humidity generated at any moment in the steel rolling process inevitably cause corrosion, abrasion and impact on a rolling mill frame, particularly a window body, an upper roller and a lower roller, so that the spatial positions of all parts of the rolling mill are changed. The rolling precision of the rolling mill is closely related to the spatial positions of various components of the rolling mill. Once the spatial positions of the window of the rolling mill and the internal rollers are displaced relatively, the specification of the finally rolled and formed steel cannot meet the specified requirement.

The method of measuring the position or reference point by using the laser tracker is a method which is already commonly used in the metallurgical industry, and has been described in many documents on the measuring system and principle thereof, and the method of using the laser tracker to measure the absolute distance between two points is also available on the market for target balls which are also available on the market, for example, L ca Geosystems provides a target ball which is a metal ball provided with a triangular reflector and can ensure a constant offset when measuring the surface.

Because the working condition environment of the rolling mill is severe, it is impossible to ensure that all measured points or measured planes are easy to fix target balls. In actual detection, the target ball can only be fixed in a mode of manually holding the target ball, the mode is greatly influenced by human factors, the stability is poor, the efficiency is low, the rolling mill is a complex and high large machine, and the climbing device is very unsafe for operators needing to climb.

For example, a mill in a steel mill may be up to 10 meters high or even higher, and when the detection of the target balls is used, it is sometimes necessary to measure certain positions at the high level of the mill housing. Usually, a scaffold is firstly erected at the bottom of the rolling mill, then a detector is dispatched to climb the scaffold and then climb on the scaffold, a target ball is held by hands after the target ball reaches a specified position, and a laser beam emitted by a laser tracker is received to implement detection. The manpower and material resources for building the scaffold are too much consumed, so the detection process is very time-consuming and at least needs 3 hours. And because of the need to climb, the inspector must be provided with a safety belt with him or her. However, even if the aerial work is carried out under the severe field environment, the personal safety of the detection personnel cannot be guaranteed by 100 percent, and once an accident occurs, the consequences are not imaginable. Meanwhile, under the condition of high-altitude operation, the light condition of the field is poor, and the interference of dust and noise is inevitable, so that when a target ball is held by a detection person, unnecessary shaking is inevitably generated, and the detection precision is reduced to some extent. There is no good solution, especially when it is necessary to detect the high horizontal top surface of the mill housing.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a target ball fixer for horizontal top surface of rolling mill for solve among the prior art because there is not appurtenance and lead to detecting the precision unstable, give the human body and bring unsafe problem in the testing process.

The embodiment of the utility model provides an one of, a target ball fixer for horizontal top surface of rolling mill for rolling mill parameter measurement, this target ball fixer includes:

the top cover is embedded with a magnet, and the target ball is attracted and fixed on the top cover surface by magnetic force;

the top cover is sleeved at one end of the connecting rod;

the connecting rod base is sleeved at the other end of the connecting rod and internally provided with a magnet sheet, and the connecting rod base is provided with a contact surface which is used for contacting with the horizontal top surface of the rolling mill;

the telescopic rod interface is provided with a right-angle bent pipe and is used for connecting and fixing the telescopic rod;

the upper part of the clamping sleeve is used for fixedly fastening the connecting rod sleeve, and the lower part of the clamping sleeve is used for fixedly fastening the telescopic rod interface sleeve.

The utility model discloses to the difficult problem that meets in actual rolling mill parameter detection, provide a target ball fixer for rolling mill horizontal top surface, this target ball fixer is the appurtenance that adopts laser tracker to carry out laser detection, and to a great extent has improved the actual problem that is difficult to effectively fix the target ball that often meets in present laser detection, has really realized three big characteristics of accuracy, high efficiency, the safety that laser detected.

Drawings

The above and other objects, features and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present invention are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:

fig. 1 is a schematic structural view of a target ball holder according to an embodiment of the present invention.

Fig. 2 is an exploded view of a target ball holder according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a usage of a target ball holder according to an embodiment of the present invention.

Fig. 4 is a partially enlarged schematic view at I in fig. 3.

1-T-shaped cutting sleeve, 2-connecting rod, 3-top cover, 4-magnet, 5-bolt, 6-nut, 7-telescopic rod interface, 8-connecting rod base and 9-target ball fixer.

Detailed Description

In accordance with one or more embodiments, as shown in fig. 1 and 2, a ball retainer for a horizontal top surface of a rolling mill can be used to inspect the elevated horizontal top surface of a mill housing. The target ball fixer comprises a top cover, a connecting rod base, a telescopic rod interface and a T-shaped clamping sleeve. The top cover is embedded with a magnet, and the target ball is attracted and fixed on the top cover surface by magnetic force. The top cover surface is a spherical curved surface, and the radius of the spherical curved surface is consistent with the radius of the target sphere. The radius of this spherical surface can be chosen to be 19.05mm, depending on the size of the target sphere at hand. The surface roughness of the spherical curved surface can be Ra 0.2-1.2 μm, and the same roundness of any circumference of the curved surface is less than or equal to 0.01 mm. After the target ball is placed on the target ball seat, the distance between the lowest point of the target ball surface and the magnet is recommended to be controlled to be 0.6-1.55 mm, so that the moderate magnetic force is ensured.

The top cover is sleeved at one end of the connecting rod; the connecting rod base is internally provided with a magnet piece and is sleeved at the other end of the connecting rod, and the connecting rod base is provided with a contact surface which is used for contacting with the horizontal top surface of the rolling mill; the telescopic rod interface is provided with a right-angle bent pipe and is used for connecting and fixing the telescopic rod; the upper part of the T-shaped cutting sleeve is used for fixedly connecting the connecting rod sleeve, and the lower part of the cutting sleeve is used for fixedly connecting the telescopic rod interface sleeve. The telescopic rod interface with the right-angle elbow can adopt a clamping interface or a threaded interface. The T-shaped clamping sleeve fixes the connecting rod and the telescopic rod interface by using bolts.

Further, according to one or more embodiments, a target ball holder includes a top cap, a connecting rod base, a telescopic rod interface, a T-shaped ferrule, and a telescopic rod, wherein the telescopic rod is connected to the connecting rod through the telescopic rod interface and the T-shaped ferrule. The telescopic link is the carbon element material, can extend or contract at will according to actual height needs, conveniently sends the target ball to appointed height. The telescopic link interface is used for locking the telescopic link, and the telescopic link has prolonged people's arm, has simulated the effect of staff. The target ball fixing seat is provided with two end faces which are provided with magnetic force. One of the faces acts as a ball seat in the prior art, and the ball is fixed at this end by magnetic attraction; and the other surface is a circular plane of the connecting rod base made of aluminum alloy, the diameter of the connecting rod base is 5 cm, and a magnet piece is arranged in the connecting rod base.

As shown in fig. 3 and 4, in the actual detection process, an inspector holds the telescopic rod and stands on the ground, and sends the target ball fixer with one end fixed with the target ball by magnetic force to the horizontal top surface at the high position of the mill housing. The telescopic rod and the target ball fixer are in parallel relation. The circular plane of the connecting rod base at the other end of the target ball fixing device is attached to the top surface of the measured level at the high position of the mill housing by utilizing the principle of magnetic force adsorption, the target balls on the target ball fixing device receive the light velocity of the laser tracker to implement detection, and the final detection precision is ensured by utilizing the mode.

It is worth noting that while the foregoing has described the spirit and principles of the present invention with reference to several specific embodiments, it is to be understood that the present invention is not limited to the disclosed embodiments, nor is the division of aspects, which is for convenience only as the features in these aspects cannot be combined. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A target ball holder for a horizontal top surface of a rolling mill for rolling mill parameter measurement, the target ball holder comprising:

the top cover is internally embedded with a magnet, the target ball is attracted and fixed on a top cover surface by magnetic force, the top cover surface is a spherical curved surface, and the radius of the spherical curved surface is consistent with the radius of the target ball;

the top cover is sleeved at one end of the connecting rod;

the connecting rod base is internally provided with a magnet piece and sleeved at the other end of the connecting rod, and the connecting rod base is provided with a contact surface which is used for contacting with the horizontal top surface of the rolling mill;

2. The target ball holder of claim 1, wherein the telescoping rod interface is a snap interface or a threaded interface.

3. The target ball holder of claim 1 wherein the T-shaped ferrule uses a bolt to secure a link and a telescoping rod interface.

4. The target ball holder of claim 1, further comprising a telescoping rod connected to the connecting rod through a telescoping rod interface and a T-shaped ferrule.