CN109483161B - Method for processing welding ball - Google Patents

Method for processing welding ball Download PDF

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Publication number
CN109483161B
CN109483161B CN201811222212.9A CN201811222212A CN109483161B CN 109483161 B CN109483161 B CN 109483161B CN 201811222212 A CN201811222212 A CN 201811222212A CN 109483161 B CN109483161 B CN 109483161B
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China
Prior art keywords
welding
hemispheres
single rib
reinforcing element
ball
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CN201811222212.9A
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CN109483161A (en
Inventor
陈宏伟
丁明辉
吕静
黄明亮
徐恒雷
吴浩
高亚飞
姜龙
徐飞
胡文超
王鹏
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China National Gold Engineering Corp
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China National Gold Engineering Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Adornments (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

The invention discloses a processing method of a welding ball, which comprises the following steps of firstly, selecting materials according to a drawing design, and blanking; then, placing the welding ball blank in a sealed baking oven for baking, taking out after baking to a certain temperature, and performing hydraulic pressure by using a press machine; secondly, correcting and cutting the blank material, and turning the blank material on a lathe to break the blank material; then, respectively butting a single rib or double ribs in the two hemispheres, and welding; welding a reinforcing element disc between the single rib or the double ribs of the two hemispheres; then, after the two hemispheres are butted and fastened, spot welding is carried out for fixation, and then welding is carried out by a welding machine; and finally, checking the appearance and performing nondestructive inspection. The invention has the beneficial effects that: the processing method can avoid the situation that the diameter is reduced, thereby effectively avoiding the eccentric phenomenon of the node; meanwhile, the welding ball manufactured by the method greatly shortens the processing time and increases the working efficiency under the condition of ensuring the quality, thereby achieving the effect of saving the cost.

Description

Method for processing welding ball
Technical Field
The invention relates to the technical field of grid structures, in particular to a method for processing a welding ball.
Background
The large-span space structure is widely used in stations, stadiums and workshops, and is favored by mainstream buildings gradually because the space structure is beautiful and smooth and is rich in three-dimensional sense. The welded ball joint is mainly used for bearing the axial force of a rod piece, the stress is not eccentric, and the welded ball plays a role in lifting the feet, but the traditional welded ball manufacturing method is easy to reduce the diameter of the welded ball, so that the net rack is eccentric, and the market demand can not be met.
Disclosure of Invention
In view of the above technical problems in the related art, the present invention provides a method for processing a solder ball, which can overcome the above disadvantages in the prior art.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
a method for processing a welding ball comprises the following steps:
s1: selecting materials according to a drawing design, and blanking;
s2: placing the welding ball blank in a sealed oven for baking;
s3: baking to a certain temperature, taking out and performing hydraulic pressure by using a press machine;
s4: correcting and cutting the blank material, and turning the blank material on a lathe to break the opening;
s5: respectively butting a single rib or double ribs in the two hemispheres, and welding, wherein the diameter of the single rib or the double ribs is smaller than that of the hemispheres;
s6: welding a reinforcing element disc between the single rib or the double ribs of the two hemispheres, wherein the reinforcing element disc is perpendicular to the single rib or the double ribs;
s7: after the two hemispheres are butted and fastened, spot welding is carried out for fixation, and then welding is carried out by a welding machine;
s8: and (5) inspecting the appearance and performing nondestructive inspection.
Further, the concrete steps of performing hydraulic pressure by using the press machine comprise:
s3.1: mounting a mould on a press, wherein the mould is in concave-convex fit;
s3.2: hydraulic pressure is performed.
Further, the pressure range of the press machine is 500T-1000T.
Further, the certain temperature is 900-1000 degrees.
Further, the range of the crevasses is 22-30 degrees.
Further, the diameter of the single rib or the double ribs is 15mm lower than that of the hemisphere.
Furthermore, the reinforcing element disc is provided with a fabrication hole, and the diameter of the fabrication hole is 200 mm; the thickness of the reinforcing element disc is 30 mm.
Further, the thickness of the single rib or the double ribs is consistent with that of the reinforcing element disc.
The invention has the beneficial effects that: the processing method can avoid the situation that the diameter is reduced, thereby effectively avoiding the eccentric phenomenon of the node; meanwhile, the welding ball manufactured by the method greatly shortens the processing time and increases the working efficiency under the condition of ensuring the quality, thereby achieving the effect of saving the cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed 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 it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a flow chart of a method for processing a solder ball according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
As shown in fig. 1, a method for processing a solder ball according to an embodiment of the present invention includes the following steps:
s1: selecting materials according to a drawing design, and blanking;
s2: placing the welding ball blank in a sealed oven for baking;
s3: baking to a certain temperature, taking out and performing hydraulic pressure by using a press machine;
s4: correcting and cutting the blank material, and turning the blank material on a lathe to break the opening;
s5: respectively butting a single rib or double ribs in the two hemispheres, and welding, wherein the diameter of the single rib or the double ribs is smaller than that of the hemispheres;
s6: welding a reinforcing element disc between the single rib or the double ribs of the two hemispheres, wherein the reinforcing element disc is perpendicular to the single rib or the double ribs;
s7: after the two hemispheres are butted and fastened, spot welding is carried out for fixation, and then welding is carried out by a welding machine;
s8: and (5) inspecting the appearance and performing nondestructive inspection.
In one embodiment, the hydraulic pressure using the press comprises the following steps:
s3.1: mounting a mould on a press, wherein the mould is in concave-convex fit;
s3.2: hydraulic pressure is performed.
In one embodiment, the press has a pressure in the range of 500T to 1000T.
In one embodiment, the certain temperature is 900-1000 deg.
In one embodiment, the amount of the laceration is in the range of 22 ° to 30 °.
In a specific embodiment, the diameter of the single rib or the double rib is 15mm lower than the diameter of the hemisphere.
In a specific embodiment, the reinforcing element disc is provided with a fabrication hole, and the diameter of the fabrication hole is 200 mm; the thickness of the reinforcing element disc is 30 mm.
In a specific embodiment, the thickness of the single rib or the double ribs is consistent with that of the reinforcing element disc.
In order to facilitate understanding of the above-described technical aspects of the present invention, the above-described technical aspects of the present invention will be described in detail below in terms of specific usage.
When the material is used specifically, the material is firstly selected according to the design of a drawing, and the material is generally made of Q235B or Q345B steel; then blanking (if a welding ball with the diameter of 750mm and double ribs are required, the thickness of the steel plate is 30 mm), wherein the unfolding size, the correction size and the cutting opening size required by stamping are included in the blanking, and then the blanking is placed in a sealed baking furnace for baking coal in a closed mode, and coal gas can be recycled to form reburning, the furnace can be used for burning dozens of to twenty pieces at a time, the blank of the welding ball blank needs to be heated to 900 plus 1100 ℃, and when the steel plate is dark red, the blank can be taken out and placed on a 500T-1000T press machine for hydraulic pressure; the press is changed into a hemispherical mould with required size, the hemispherical mould is in convex-concave fit and then is subjected to hydraulic pressure, wherein the blank burnt in a furnace needs to be controlled to have good temperature, the blank cannot be pressed to be formed and needs to be re-burnt again if the temperature is not higher than the temperature, the blank is higher than the temperature or is burnt to be reddish, the blank is not allowed to be damaged, and in addition, the blank is easy to wrinkle.
Secondly, after the two hemispheres are pressed to be cool, correction cutting can be carried out according to the size radius, a lathe is used for turning a groove, the crevasse is between 22 and 30 degrees and is generally fixed within 22 degrees, the 22-degree groove enables the width of the welding seam to be 50mm, the requirement can be met, and if the 30-degree groove is turned, the welding seam can reach 60mm, so that the welding seam quality is influenced; after the two grooves are machined, starting butt joint of single or double assistance in the hemispheres, if the double assistance is needed according to a drawing, respectively placing semicircular steel plates with the same thickness in the two hemispheres, and welding, wherein the radius of each semicircular steel plate is smaller than that of each hemisphere, preferably smaller than 15mm, because a reinforcing element plate with the same thickness is placed on the rib, the element plate is 30mm thick, the outer diameter of the element plate is polished, the groove is not formed, a process hole with an inner hole of 200mm is cut, the element plate is horizontally placed on the single assistance, the disc with the thickness of 30mm is higher than the horizontal plane of each hemisphere for remaining the folding of the other hemisphere, and the element plate can be fixedly welded through the process hole after being horizontal; it is to be noted here that: the two ribbed hemispheres are respectively eaten by half of the thickness of the element disc, so that a circular seam groove is formed, and a 3mm seam is reserved on the upper contact surface and the lower contact surface, so that the element disc can be completely melted during welding. When the two hemispheres are closed, attention should be paid to the overlapping of a line by the aid of the cross, and the two hemispheres are fastened and then fixed by spot welding.
Finally, entering a manual secondary shielded welding priming process; manual secondary welding is carried out to bottom on a jig frame, a ball synchronously rotates on the jig frame along with a welding rod, after bottom punching is finished, a hole can be formed by applying ocean punching holes punched by south and north poles in advance, and a 4mm drill bit can be used for expanding a hole, namely a centering hole, so that the welding ball can be fixed and can be welded and rotated on a welding machine tool; then starting a semi-automatic arc welding machine, and synchronously rotating the welding ball for one-time welding; if the manual secondary shielded welding bottoming is not needed, the ball circumferential seam is welded on the submerged arc welding machine for a plurality of times until the ball circumferential seam is welded flat; after welding, the appearance and the weld quality are checked after 24 hours, and nondestructive inspection is carried out.
The requirements of the invention on welding seams are as follows: the element degree error is within 1.5mm, the parallelism error of the plane of the same axis is within 2mm, the diameter error of the blank is within 2mm, the surface of the hemisphere must be smooth, the welding line should not be higher than the surface of the sphere, no fold should be formed, and the thickness should not be larger than 1.5 mm.
In conclusion, the machining method can avoid the situation that the diameter is reduced, and further effectively avoid the phenomenon of node eccentricity; meanwhile, the welding ball manufactured by the method greatly shortens the processing time and increases the working efficiency under the condition of ensuring the quality, thereby achieving the effect of saving the cost.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (3)

1. A method for processing a welding ball is characterized by comprising the following steps:
s1: selecting materials according to a drawing design, and blanking;
s2: placing the welding ball blank in a sealed oven for baking;
s3: baking to a certain temperature, taking out and performing hydraulic pressure by using a press, wherein the specific steps comprise mounting a mould on the press, wherein the mould is in concave-convex fit, and performing hydraulic pressure, wherein the certain temperature is 900-1000 degrees, and the pressure range of the press is 500-1000T;
s4: correcting and cutting the blank material, and turning the blank material on a lathe to break the opening;
s5: respectively butting a single rib or double ribs in two hemispheres, and welding, wherein the diameter of the single rib or the double ribs is smaller than that of the hemispheres, and the diameter of the single rib or the double ribs is 15mm smaller than that of the hemispheres;
s6: welding a reinforcing element disc between the single rib or the double ribs of the two hemispheres, wherein the reinforcing element disc is perpendicular to the single rib or the double ribs, a fabrication hole is formed in the reinforcing element disc, and the diameter of the fabrication hole is 200 mm; the thickness of the reinforcing element disc is 30 mm;
s7: after the two hemispheres are butted and fastened, spot welding is carried out for fixation, and then welding is carried out by a welding machine;
s8: and (5) inspecting the appearance and performing nondestructive inspection.
2. A method for manufacturing a welded ball according to claim I, wherein in step S4, the range of the said break is 22 ° -30 °.
3. The method of claim 1, wherein in step S6, the thickness of the single rib or double rib is equal to the thickness of the reinforcing element disc.
CN201811222212.9A 2018-10-19 2018-10-19 Method for processing welding ball Active CN109483161B (en)

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Application Number Priority Date Filing Date Title
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CN109483161B true CN109483161B (en) 2020-12-25

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Publication number Priority date Publication date Assignee Title
CN113319535A (en) * 2021-06-10 2021-08-31 中国科学院高能物理研究所 Cavity machining method of spherical energy storage cavity pulse compressor

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US3812632A (en) * 1972-08-28 1974-05-28 R Robertson Dome structure
CN201679093U (en) * 2010-04-06 2010-12-22 温州泰昌铁塔制造有限公司 Steel ball joint of power transmission tower
CN203961028U (en) * 2014-07-22 2014-11-26 湖北鸿路钢结构有限公司 A kind of high-intensity solder sphere and truss connected node
CN105750823A (en) * 2014-12-13 2016-07-13 重庆迎瑞升压铸有限公司 Hollow ball welding technique
CN206015912U (en) * 2016-08-25 2017-03-15 马智刚 A kind of novel welding ball node
CN206408744U (en) * 2016-11-29 2017-08-15 山东科技大学 The T-shaped round steel pipe node of cross steel stiffening ring is set in a kind of
CN206722071U (en) * 2017-03-30 2017-12-08 中建五局第三建设有限公司 Semispherical node for upper chord and lower chord of steel structure crossed truss system and application of semispherical node
CN108006309A (en) * 2017-12-21 2018-05-08 银球节能工程有限公司 Super-pressure stainless steel hollow float

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