CN114700688A - H-shaped steel processing technology and preparation method thereof - Google Patents
H-shaped steel processing technology and preparation method thereof Download PDFInfo
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- CN114700688A CN114700688A CN202210295060.5A CN202210295060A CN114700688A CN 114700688 A CN114700688 A CN 114700688A CN 202210295060 A CN202210295060 A CN 202210295060A CN 114700688 A CN114700688 A CN 114700688A
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- shaped steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention belongs to the technical field of H-shaped steel processing and preparation, and particularly relates to an H-shaped steel processing technology and a preparation method thereof, which comprises seven steps of part blanking, H-shaped steel assembly, H-shaped steel welding, H-shaped steel correction, H-shaped steel end blanking, H-shaped steel drilling and H-shaped steel assembly; according to the invention, the hot air blower is adopted to carry out hot air continuous blowing treatment along the advancing direction during welding, steel scraps generated by carrying, clamping and assembling and clamping can be removed, and meanwhile, the hot air blower can be subjected to heat treatment before welding, so that the welding quality can be improved, the strength of the H-shaped steel can be improved, and a step of calibrating the assembled parts through a laser collimator is added between the welding steps of the H-shaped steel assembly and the H-shaped steel, so that the bending of the parts during shipping and assembling can be found in time, and when the bending occurs, the treatment can be carried out firstly, then the welding is carried out, and the straightness of the H-shaped steel is ensured.
Description
Technical Field
The invention belongs to the technical field of H-shaped steel processing and preparation, and particularly relates to a processing technology and a preparation method of H-shaped steel.
Background
The H-shaped steel is an economic section efficient section with more optimized section area distribution and more reasonable strength-to-weight ratio, and is named because the section is the same as the English letter H. Because all parts of the H-shaped steel are arranged at right angles, the H-shaped steel has the advantages of strong bending resistance, simple construction, cost saving, light structure weight and the like in all directions and is widely applied.
The existing H-shaped steel processing technology is used before a welding procedure, steel scraps can be generated on the surface of H-shaped steel at a welding position due to the fact that the H-shaped steel is clamped and assembled in a carrying mode, residual steel scraps are not removed when welding is carried out, welding quality is affected, the temperature of the edge is low when welding is carried out, the temperature is low when welding is caused, and the healing effect after welding is poor.
Therefore, it is necessary to provide a processing technique for H-shaped steel and a preparation method thereof to solve the above problems.
Disclosure of Invention
Aiming at the problems, the invention provides an H-shaped steel processing technology and a preparation method thereof, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a process for machining H-shaped steel includes such steps as machining the H-shaped steel,
the method comprises the following steps: blanking parts, firstly using numerical control plasma, numerical control flame and numerical control straight strip
Cutting and blanking the section steel by a cutting machine, then vertically blanking wing plates and web plates of the section steel by a straight cutting machine, and blanking other parts by a numerical control cutting machine;
step two: assembling H-shaped steel, assembling the parts in the step one by adopting an H-shaped steel assembling machine, and pretreating the joints of the parts by adopting positioning welding which adopts gas shielded welding;
step three: welding the H-shaped steel, and welding the end of the H-shaped steel from the end of the H-shaped plate by an automatic submerged arc welding machine, wherein the welding speed is 1cm/5s during welding, and a hot air machine is adopted to perform hot air continuous blowing treatment along the advancing direction during welding;
step four: straightening the H-shaped steel, namely straightening the welded H-shaped steel by using a straightening machine, controlling the straightening speed to be 1cm/3s during straightening, and simultaneously fixing the edge after straightening to prevent restoration;
step five: blanking the end of the H-shaped steel, and blanking the end of the H-shaped steel by adopting a semi-automatic cutting machine;
step six: drilling holes in the H-shaped steel and drilling holes in the wing plates in a constant interval mode through a drilling machine;
step seven: assembling H-shaped steel, assembling all parts according to corresponding numbers and directions, and removing impurities such as rust, slag, paint, moisture and the like 50mm on the welded part and two sides of a groove; and marking on the part body by using a stone pen, wherein the position line comprises a center line, a datum line, a position line and the like.
Preferably, the length of the wing plate and the web plate of the H-shaped steel in the step one needs to be kept by 50mm, the width does not need to be kept, and the allowance is added according to the process requirement when blanking is prepared in a workshop.
Preferably, the distance between the initial welding point and the end is 20mm, when the length of the part is shorter and is less than 200mm, the positioning welding point is divided into two points which are distributed at the position 20mm away from the end, the H-shaped steel is not allowed to be scratched by electric arc when the assembly spot welding is carried out, and the seam of the spot welding is within 1 mm.
Preferably, an arc starting plate and an end drawing plate need to be arranged at the end of the second step, the length of the arc starting plate and the length of the end drawing plate need to be greater than or equal to 150mm, the width of the arc starting plate and the end drawing plate need to be greater than or equal to 100mm, and the length of the weld joint lead-out needs to be greater than or equal to 60 mm. The arc striking plate and the leading-out plate need to be cut off by gas cutting, and are strictly prohibited to be hammered and removed.
Preferably, the surface of the wing plate corrected in the fourth step is not concave or damaged, and the scratch depth is not more than 0.5 mm.
Preferably, in the reference line, the position line and the like in the seventh step, the position line of each component is marked by double lines, the positioning line is clear and accurate, and the size deviation caused by line blurring is avoided.
Preferably, the parts after assembly are calibrated by a laser collimator between the second step and the third step, so that the parts are prevented from being bent during shipping and assembly.
A preparation method of H-shaped steel is used for preparing the H-shaped steel by the processing technology.
The invention has the technical effects and advantages that:
1. according to the invention, the hot air blower is adopted to carry out hot air continuous blowing treatment along the advancing direction during welding, so that steel scraps generated by carrying, clamping and assembling and clamping can be removed, and meanwhile, the steel scraps can be subjected to heat treatment before welding, thus the welding quality can be improved, and the strength of the H-shaped steel can be improved;
2. according to the invention, the step of calibrating the assembled parts by the laser collimator is added between the steps of assembling the H-shaped steel and welding the H-shaped steel, so that the bending of the parts during shipment and assembly can be found in time, and the parts can be processed and then welded when being bent, thereby ensuring the straightness of the H-shaped steel.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a process flow diagram of the H-shaped steel processing technology of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention;
in the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The invention provides a processing technology of H-shaped steel shown in figure 1, which comprises the following steps,
the method comprises the following steps: blanking parts, firstly using numerical control plasma, numerical control flame and numerical control straight strip
Cutting and blanking the section steel by a cutting machine, vertically blanking wing plates and web plates of the section steel by a straight strip cutting machine, and blanking other parts by a numerical control cutting machine;
step two: assembling H-shaped steel, assembling the parts in the step one by adopting an H-shaped steel assembling machine, and pretreating the joints of the parts by adopting positioning welding which adopts gas shielded welding;
step three: welding the H-shaped steel, and welding the end of the H-shaped steel from the end of the H-shaped plate by an automatic submerged arc welding machine, wherein the welding speed is 1cm/5s during welding, and a hot air machine is adopted to perform hot air continuous blowing treatment along the advancing direction during welding;
step four: straightening the H-shaped steel, namely straightening the welded H-shaped steel by using a straightening machine, controlling the straightening speed to be 1cm/3s during straightening, and simultaneously fixing the edge after straightening to prevent restoration;
step five: blanking the end of the H-shaped steel, and blanking the end of the H-shaped steel by adopting a semi-automatic cutting machine;
step six: drilling holes in the H-shaped steel and drilling holes in the wing plates in a constant interval mode through a drilling machine;
step seven: assembling H-shaped steel, assembling all parts according to corresponding numbers and directions, and removing impurities such as rust, slag, paint, moisture and the like 50mm on the welded part and two sides of a groove; and marking on the part body by using a stone pen, wherein the position line comprises a center line, a datum line, a position line and the like.
And (3) putting 50mm allowance on the lengths of wing plates and web plates of the H-shaped steel in the step one, and putting allowance on the widths of the wing plates and the web plates according to process requirements when preparing workshop blanking.
And the distance between the initial welding point and the end is 20mm, when the length of the part is shorter and is less than 200mm, the positioning welding point is divided into two points, the distribution position is 20mm away from the end, the H-shaped steel is not allowed to be scratched by electric arc when the H-shaped steel is subjected to assembly spot welding, and the seam of the spot welding is within 1 mm.
And an arc starting plate and an extraction plate are required to be arranged at the end head of the second step, the length of the arc starting plate and the extraction plate is more than or equal to 150mm, the width of the arc starting plate and the extraction plate is more than or equal to 100mm, and the extraction length of the welding seam is more than or equal to 60 mm. The arc striking plate and the leading-out plate need to be cut off by gas cutting, and are strictly prohibited to be hammered and removed.
And fourthly, the surface of the wing plate corrected in the fourth step is not required to be concave or damaged, and the scratch depth is not more than 0.5 mm.
And in the reference line, the position line and the like in the seventh step, the position line of each part is marked by double lines, so that the positioning line is clear and accurate, and the dimension deviation caused by line blurring is avoided.
And calibrating the assembled parts by using a laser collimator between the second step and the third step, so that the parts are prevented from being bent during shipping and assembling.
A preparation method of H-shaped steel is used for preparing the H-shaped steel by the processing technology.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A processing technology of H-shaped steel is characterized in that: the process comprises the following steps of (a) preparing,
the method comprises the following steps: part blanking, namely, firstly, cutting and blanking the section steel by using numerical control plasma, numerical control flame and a numerical control straight strip and a cutting machine, then, vertically blanking wing plates and web plates of the section steel by using a straight strip cutting machine, and blanking other parts by using a numerical control cutting machine;
step two: assembling H-shaped steel, assembling the parts in the step one by adopting an H-shaped steel assembling machine, and preprocessing the joints of the parts by adopting positioning welding which adopts gas shielded welding;
step three: welding the H-shaped steel, and welding the end of the H-shaped steel from the end of the H-shaped plate by an automatic submerged arc welding machine, wherein the welding speed is 1cm/5s during welding, and a hot air machine is adopted to perform hot air continuous blowing treatment along the advancing direction during welding;
step four: straightening the H-shaped steel, namely straightening the welded H-shaped steel by using a straightening machine, controlling the straightening speed to be 1cm/3s during straightening, and simultaneously fixing the edge after straightening to prevent restoration;
step five: blanking the end of the H-shaped steel, and blanking the end of the H-shaped steel by adopting a semi-automatic cutting machine;
step six: drilling holes in the H-shaped steel and drilling holes in the wing plates in a constant interval mode through a drilling machine;
step seven: assembling H-shaped steel, assembling all parts according to corresponding numbers and directions, and removing impurities such as rust, slag, paint, moisture and the like 50mm on the welded part and two sides of a groove; and marking on the part body by using a stone pen, wherein the position line comprises a center line, a datum line, a position line and the like.
2. The H-shaped steel processing technology according to claim 1, wherein: and (3) putting 50mm allowance on the lengths of wing plates and web plates of the H-shaped steel in the step one, and putting allowance on the widths of the wing plates and the web plates according to process requirements when preparing workshop blanking.
3. The H-shaped steel processing technology according to claim 1, wherein: and the distance between the initial welding point and the end is 20mm, when the length of the part is shorter and is less than 200mm, the positioning welding point is divided into two points, the distribution position is 20mm away from the end, electric arc scratch is not allowed when the H-shaped steel is subjected to assembly spot welding, and the undercut of the spot welding is within 1 mm.
4. The H-shaped steel processing technology according to claim 1, characterized in that: and an arc striking plate and an extraction plate are required to be arranged at the end head of the second step, the length of the arc striking plate and the extraction plate is more than or equal to 150mm, the width of the arc striking plate and the extraction plate is more than or equal to 100mm, the extraction length of the welding line is more than or equal to 60mm, the arc striking plate and the extraction plate are cut off by gas cutting, and hammering and removal are strictly prohibited.
5. The H-shaped steel processing technology according to claim 1, characterized in that: and fourthly, the surface of the wing plate corrected in the fourth step is not required to be concave or damaged, and the scratch depth is not more than 0.5 mm.
6. The H-shaped steel processing technology according to claim 1, wherein: and in the reference line, the position line and the like in the seventh step, the position line of each part is marked by double lines, so that the positioning line is clear and accurate, and the dimension deviation caused by line blurring is avoided.
7. The H-shaped steel processing technology according to claim 1, characterized in that: and calibrating the assembled parts by a laser collimator between the second step and the third step, so that the parts are prevented from being bent during loading and assembling.
8. A preparation method of H-shaped steel is characterized by comprising the following steps: manufactured using the H-section steel processing technology of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210295060.5A CN114700688A (en) | 2022-03-24 | 2022-03-24 | H-shaped steel processing technology and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210295060.5A CN114700688A (en) | 2022-03-24 | 2022-03-24 | H-shaped steel processing technology and preparation method thereof |
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| Publication Number | Publication Date |
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| CN114700688A true CN114700688A (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210295060.5A Withdrawn CN114700688A (en) | 2022-03-24 | 2022-03-24 | H-shaped steel processing technology and preparation method thereof |
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| CN (1) | CN114700688A (en) |
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- 2022-03-24 CN CN202210295060.5A patent/CN114700688A/en not_active Withdrawn
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Application publication date: 20220705 |
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| WW01 | Invention patent application withdrawn after publication |