CN210188608U

CN210188608U - Steel bridge plate unit U-shaped rib positioning weld seam milling device

Info

Publication number: CN210188608U
Application number: CN201920887371.4U
Authority: CN
Inventors: Fei Zhang; 张飞; Zhikun Lyu; 吕志坤; Zhixin Liu; 刘志新; Yuxin Zhao; 赵雨新; Lipeng Shi; 石立鹏; Zhiwei Liu; 刘志伟
Original assignee: China Railway Shanhaiguan Bridge Group Co Ltd
Current assignee: China Railway Shanhaiguan Bridge Group Co Ltd
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-03-27
Anticipated expiration: 2029-06-13

Abstract

The utility model discloses a U-shaped rib positioning weld seam milling device for a steel bridge plate unit, which comprises a walking mechanism, wherein a fixed plate is arranged in the walking mechanism; the variable frequency motor is connected with the fixing plate; the main shaft assembly comprises a main shaft fixing seat connected with the fixing plate and a rotating main shaft longitudinally arranged; the upper part of the rotating main shaft is connected with a synchronous wheel, the lower part of the rotating main shaft is connected with a milling cutter, and the synchronous wheel is connected with an output shaft of the variable frequency motor through a synchronous belt; the rotating main shaft is driven by the variable frequency motor to rotate so as to drive the milling cutter to rotate to mill the positioning welding line. The device drives the special milling cutter to operate through the variable frequency motor on the walking mechanism, realizes milling and removing the positioning welding line of the U-shaped rib, and compared with the common manual grinding process, the device improves the production efficiency by 4 times, reduces the noise and dust pollution, and ensures the process quality.

Description

Steel bridge plate unit U-shaped rib positioning weld seam milling device

Technical Field

The utility model relates to a welding auxiliary assembly technical field especially relates to a steel bridge plate unit U-shaped rib positioning weld milling unit.

Background

At present, in the field of steel bridge manufacturing, the requirement on the service life of a steel bridge is gradually improved. Wherein, the penetration rate of the weld joint of the U-shaped rib is more than 80 percent of the thickness of the U-shaped rib. The manufacturing process of the plate unit comprises the following steps: firstly, positioning and assembling the U-shaped ribs: welding a positioning welding line on the outer side, wherein the welding leg is not more than 50% of the groove size, the length of the welding line is 60mm, and the distance is 500 mm; secondly, welding the inner part of the U-shaped rib by using special equipment, wherein the size of a welding leg is 6 mm; thirdly, removing the positioning welding line on the outer side; and fourthly, welding the welding seam of the U-shaped rib at the outer side.

The defects of welding pores, incomplete fusion and the like are easily generated at the position of the positioning welding line, so the positioning welding line needs to be removed before welding the external welding line, and the known method for removing the positioning welding line adopts a manually operated grinding wheel to polish, so the method has low working efficiency and large dust and noise, cannot completely remove the positioning welding line, and cannot meet the quality requirement of 80 percent of penetration rate.

SUMMERY OF THE UTILITY MODEL

The utility model provides a steel bridge plate unit U-shaped rib positioning weld milling unit. The technological shortcoming of getting rid of the positioning weld to manual operation emery wheel is polished, the utility model provides a device gets rid of U-shaped rib positioning weld through milling process's mode. The device uses mechanization, automation as the design target, simple structure, easily operation can improve production efficiency, noise and dust reduction can thoroughly clear away the positioning weld, guarantees the welding seam quality of board unit U-shaped rib. The device removes the U-shaped rib positioning welding seam in a milling mode so as to improve the welding quality of the U-shaped rib. The device has simple and compact structure and is easy to operate.

The utility model provides a following scheme:

a steel bridge plate unit U-shaped rib positioning weld seam milling device comprises:

preferably: the milling machine further comprises a guide wheel assembly connected with the travelling mechanism, and the guide wheel assembly is used for adjusting the milling depth.

Preferably: and the lower part of the travelling mechanism is provided with travelling wheels.

Preferably: the road wheel has a bearing structure.

According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect:

through the utility model, a U-shaped rib positioning weld seam milling device for a steel bridge plate unit can be realized, and in an implementation mode, the device can comprise a walking mechanism, wherein a fixed plate is arranged in the walking mechanism; the variable frequency motor is connected with the fixing plate; the main shaft assembly comprises a main shaft fixing seat connected with the fixing plate and a rotating main shaft longitudinally arranged; the upper part of the rotating main shaft is connected with a synchronous wheel, the lower part of the rotating main shaft is connected with a milling cutter, and the synchronous wheel is connected with an output shaft of the variable frequency motor through a synchronous belt; the rotating main shaft is driven by the variable frequency motor to rotate so as to drive the milling cutter to rotate to mill the positioning welding line. The device drives the special milling cutter to operate through the variable frequency motor on the walking mechanism, realizes milling and removing the positioning welding line of the U-shaped rib, and compared with the common manual grinding process, the device improves the production efficiency by 4 times, reduces the noise and dust pollution, and ensures the process quality.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a device for milling a U-shaped rib positioning weld of a steel bridge plate unit according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a traveling mechanism provided in an embodiment of the present invention;

fig. 3 is a schematic view of a rotating spindle provided in an embodiment of the present invention;

fig. 4 is a schematic view of a milling cutter provided by an embodiment of the present invention;

fig. 5 is another schematic view of a milling cutter according to an embodiment of the present invention;

FIG. 6 is a schematic view of a U-shaped rib tack weld provided by an embodiment of the present invention;

FIG. 7 is a schematic view of the welding of the weld inside the U-shaped rib according to an embodiment of the present invention;

fig. 8 is a schematic view of welding a weld on the outer side of a U-shaped rib according to an embodiment of the present invention.

In the figure: the device comprises a travelling mechanism 1, a fixing plate 2, a variable frequency motor 3, a main shaft fixing seat 4, a rotating main shaft 5, a milling cutter 6, a synchronous belt 7, a guide wheel assembly 8, travelling wheels 9 and U-shaped ribs 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

Examples

Referring to fig. 1, 2, 3, 4, and 5, in order to provide a device for milling a U-shaped rib positioning weld of a steel bridge plate unit according to an embodiment of the present invention, as shown in fig. 1, 2, 3, 4, and 5, the device includes a traveling mechanism 1, and a fixing plate 2 is disposed inside the traveling mechanism 1;

the variable frequency motor 3 is connected with the fixing plate 2;

the main shaft assembly comprises a main shaft fixing seat 4 connected with the fixing plate 2 and a rotating main shaft 5 longitudinally arranged; the upper part of the rotating main shaft 5 is connected with a synchronous wheel, the lower part of the synchronous wheel is connected with a milling cutter 6, and the synchronous wheel is connected with an output shaft of the variable frequency motor through a synchronous belt 7; the rotating main shaft 5 is driven by the variable frequency motor 3 to rotate so as to drive the milling cutter 6 to rotate to mill the positioning welding seam.

Further, the milling machine further comprises a guide wheel assembly 8 connected with the travelling mechanism 1, wherein the guide wheel assembly 8 is used for realizing the adjustment of the milling depth. And a travelling wheel 9 is arranged at the lower part of the travelling mechanism 1. The road wheels 9 have a bearing structure.

The device comprises a walking mechanism, a variable frequency motor, a main shaft, a special milling cutter, a walking wheel and a guide wheel, which are designed in a main structural form, and the U-shaped rib positioning welding line is removed in a milling mode, so that the penetration welding quality of the U-shaped rib is improved. And removing the U-shaped rib positioning welding line in a milling mode to improve the penetration welding quality of the U-shaped rib. The variable frequency motor, the main shaft, the special milling cutter, the walking wheel and the guide wheel are arranged on the walking mechanism. The variable frequency motor outputs power, and the power is transmitted to the main shaft through the synchronous belt to drive the special milling cutter to complete milling work. Two guide wheels can adjust the milling position and depth.

The device mainly comprises a walking mechanism, a variable frequency motor, a main shaft, a special milling cutter, a walking wheel and a guide wheel. The variable frequency motor outputs power, and the power is transmitted to the main shaft through the synchronous belt to drive the special milling cutter to complete milling. The vertical position of the milling cutter can be adjusted, and the base material is prevented from being scratched. Two guide wheels are arranged on the side surface of the walking mechanism to realize the adjustment of the milling depth. The variable frequency motor outputs power, and the power is transmitted to the main shaft through the synchronous belt to drive the special milling cutter to complete milling work. The variable frequency motor drives the main shaft to rotate, the special milling cutter is arranged on the main shaft, the walking wheel is of a bearing structure and arranged on the walking mechanism, and the milling depth can be adjusted by the guide wheel.

The device drives the special milling cutter to operate through the variable frequency motor on the walking mechanism, realizes milling and removing the positioning welding line of the U-shaped rib, and compared with the common manual grinding process, the device improves the production efficiency by 4 times, reduces the noise and dust pollution, and ensures the process quality.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. A steel bridge plate unit U-shaped rib positioning weld seam milling device is characterized by comprising:

the traveling mechanism is internally provided with a fixed plate;

the variable frequency motor is connected with the fixing plate;

the main shaft assembly comprises a main shaft fixing seat connected with the fixing plate and a rotating main shaft longitudinally arranged; the upper part of the rotating main shaft is connected with a synchronous wheel, the lower part of the rotating main shaft is connected with a milling cutter, and the synchronous wheel is connected with an output shaft of the variable frequency motor through a synchronous belt; the rotating main shaft is driven by the variable frequency motor to rotate so as to drive the milling cutter to rotate to mill the positioning welding line.

2. The device for milling the U-shaped rib positioning weld of the steel bridge plate unit according to claim 1, further comprising a guide wheel assembly connected with the walking mechanism, wherein the guide wheel assembly is used for realizing the adjustment of milling depth.

3. The device for milling the U-shaped rib positioning weld joint of the steel bridge plate unit according to claim 1, wherein a travelling wheel is arranged at the lower part of the travelling mechanism.

4. The steel bridge plate unit U-rib tack weld milling device of claim 3, wherein the road wheel has a bearing structure.