CN115446545A - Method for processing spliced square tube - Google Patents
Method for processing spliced square tube Download PDFInfo
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- CN115446545A CN115446545A CN202210951929.7A CN202210951929A CN115446545A CN 115446545 A CN115446545 A CN 115446545A CN 202210951929 A CN202210951929 A CN 202210951929A CN 115446545 A CN115446545 A CN 115446545A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 93
- 239000010959 steel Substances 0.000 claims abstract description 93
- 238000003825 pressing Methods 0.000 claims abstract description 71
- 238000005452 bending Methods 0.000 claims abstract description 67
- 238000003672 processing method Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 description 7
- 210000001503 joint Anatomy 0.000 description 4
- 230000001788 irregular Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a method for processing a spliced square pipe, which comprises the steps of arranging a laser linear positioner on processing equipment, carrying out pressing and positioning of an upper pressing die on a positioning triangular plate above the lower pressing die, bending a steel plate on the processing equipment after the pressing and positioning of the upper pressing die are finished, and simultaneously installing a processing die on the processing equipment to bend the steel plate. According to the invention, the processing die is added on the original processing equipment to bend the steel plate, and the laser linear positioner is used, so that the bending precision and the processing quality of the steel plate are improved, the processing cost is reduced, and the processing efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of machining, and particularly relates to a machining method for a spliced square tube.
Background
Non-standard or irregular square pipe material is used in the construction of ships and other equipment manufacturing processes. Nonstandard square tube materials are difficult to purchase and obtain directly and are often formed by welding and splicing. In the prior art, a long steel plate is bent at two positions to be processed into a groove steel, and two groove steels are spliced to form a square pipe.
The processing method is limited to processing equipment, particularly the unicity of a processing die, and the processing precision of the round corners of the irregular square pipes or the groove-shaped steel is difficult to guarantee, including processing radius and central angle. The fillet machining precision can influence the machining arc length, and then influences the width dimension of processing back side pipe or channel steel. In addition, for the longer side pipe of size, can relate to the butt joint concatenation of a square pipe length direction, the error of single square pipe machining precision can lead to between the square pipe and the square pipe concatenation dislocation, the difficult problem of butt joint.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a method for processing a spliced square tube.
In order to achieve the purpose of the invention, the invention provides the following technical scheme:
a processing method of a spliced square tube specifically comprises the following steps:
the method comprises the following steps of firstly, providing processing equipment and a processing die, wherein the processing equipment comprises an upper pressing die and a lower pressing die; the processing mould is arranged at the lower end of the upper pressing mould;
secondly, scribing a steel plate, namely scribing the surface of the steel plate to be machined into a square pipe, and scribing a steel plate machining bending position line on the surface of the steel plate;
thirdly, fixing a laser line positioner on the processing equipment, wherein the laser line positioner emits a 'line' laser line to be projected on the lower pressing die; placing a positioning triangular plate on a lower pressing die, enabling the positioning triangular plate to be positioned right below the upper pressing die, moving the upper pressing die towards the lower pressing die, enabling the lower end of the upper pressing die to be connected with the middle part of the surface of the positioning triangular plate, and simultaneously adjusting the position of a linear laser line emitted by a linear laser line positioner, so that the linear laser line emitted by the linear laser line positioner is superposed with the joint of the lower end of the upper pressing die and the surface of the positioning triangular plate; after the position of a linear laser line emitted by the laser linear line positioner is adjusted, fixing the mounting position of the laser linear line positioner and the emission angle of the laser linear line positioner, and taking out a positioning triangular plate on the lower pressing die;
fourthly, placing the steel plate to be processed after scribing in the second step on the upper pressing die, and enabling the processing bending position line scribed on the steel plate to be superposed with the position of the linear laser line emitted by the laser linear line positioner adjusted in the third step; moving the upper pressing die to the lower pressing die, enabling a processing die at the lower end of the upper pressing die to be in contact with the steel plate on the lower pressing die and pressing the steel plate downwards, and performing steel plate bending processing to enable the steel plate to be bent and formed along a processing bending position line;
fifthly, repeating the operation of the fourth step to bend all the processing bending position lines on the steel plate to be processed, and finishing the bending processing of the steel plate;
sixthly, measuring an angle, namely measuring the bending angle of the steel plate after bending by using an angle measuring tool; when the measured bending angle of the steel plate does not meet the requirement, the bending part of the steel plate is processed, bent and corrected to meet the requirement of the bending angle of the steel plate;
seventhly, repeating the fifth step and the sixth step to finish the bending processing operation of all the steel plates; and then pre-splicing the bent steel plates into a square pipe, measuring the width dimension of the square pipe, and welding and fixing the joints of the pre-spliced steel plates when the width dimension of the square pipe meets the requirement to finish the processing operation of the spliced square pipe.
The processing equipment in the first step comprises an oil press or steel plate bending processing equipment, the processing mould is in a long cylinder shape, and the diameter of the processing mould is selected according to the radius of a bent fillet of the square pipe.
The upper pressing die is integrally T-shaped, the lower end of the upper pressing die is provided with a pointed end, the processing die is vertically connected with the lower end of the upper pressing die, the length direction of the processing die is that the lower pressing die is integrally cuboid, the upper end of the lower pressing die is provided with a plurality of grooves, and the grooves are triangular.
And the steel plate processing bending position lines marked on the surface of the steel plate in the second step are a plurality of mutually parallel straight lines.
And the positioning set square in the third step is placed in the lower pressing die groove.
And determining the bending angle of the steel plate in the fourth step according to the bending angle of the square pipe spliced in advance subsequently, wherein the bending part of the steel plate is in round corner bending.
The width of the square tube in the seventh step is the length between the bent parts of the steel plate after being bent.
Based on the technical scheme, the processing method of the spliced square tube disclosed by the invention has the following technical advantages through practical application:
1. compared with the prior art, the processing method for the spliced square tube has the advantages that the processing die is added on the original processing equipment, so that the bending quality of the steel plate is improved, the processing efficiency is improved, and the processing cost is reduced.
2. Compared with the prior art, the processing method of the spliced square tube improves the processing precision of the upper pressing die of the processing equipment during bending of the steel plate, reduces the processing cost, reduces the reworking times after processing and improves the processing efficiency by installing the laser-linear line positioner on the processing equipment.
Drawings
FIG. 1 is a schematic view of the pressing and positioning of an upper pressing die of a processing device in the processing method of the spliced square tube of the present invention.
FIG. 2 is a schematic view of bending a steel plate by a processing device in the method for processing the spliced square tube.
FIG. 3 is a schematic drawing of a steel plate scribing line in the method for processing the spliced square tube.
FIG. 4 is a steel plate bending flow chart in the method for processing the spliced square tube.
FIG. 5 is a schematic diagram of the splicing and welding of bent steel plates in the method for processing the spliced square tubes.
Detailed Description
In order that the objects, aspects and advantages of the invention will become more apparent, the invention will now be described by way of example only, as illustrated in the accompanying drawings. It is to be understood that such description is merely illustrative and not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1 to 5, a method for processing a spliced square tube specifically includes the following steps:
the method comprises the following steps of firstly, providing a processing device 1 and a processing die 13, wherein the processing device 1 comprises an upper pressing die 11 and a lower pressing die 12; the processing mould 13 is arranged at the lower end of the upper pressing mould 11;
secondly, scribing the steel plate 2, performing scribing operation on the surface of the steel plate 2 to be machined into a square pipe, and scribing a machining bending position line 21 of the steel plate 2 on the surface of the steel plate 2; the bending position line 21 is scribed on the steel plate 2 to be processed in advance, so that the bending precision of the subsequent steel plate 2 is improved, and the processing efficiency is improved;
thirdly, fixing a laser line positioner 15 on the processing equipment 1, wherein the laser line positioner 15 emits a line laser line to be projected on the lower pressing die 12; placing a positioning triangular plate 14 on a lower pressing die 12, enabling the positioning triangular plate 14 to be positioned under an upper pressing die 11, moving the upper pressing die 11 towards the lower pressing die 12, enabling the lower end of the upper pressing die 11 to be connected with the middle of the surface of the positioning triangular plate 14, and simultaneously adjusting the position of a 'straight' laser line emitted by a laser straight line positioner 15, so that the 'straight' laser line emitted by the laser straight line positioner 15 is superposed with the connection position of the lower end of the upper pressing die 11 and the surface of the positioning triangular plate 14; after the position of the linear laser line emitted by the laser linear line positioner 15 is adjusted, fixing the installation position of the laser linear line positioner 15 and the emission angle of the laser linear line positioner 15 and taking out the positioning triangular plate 14 on the lower pressing die 12; bending processing is carried out after the laser linear positioner 15 is positioned, so that the bending precision of the steel plate 2 is improved, and the processing efficiency is improved;
fourthly, placing the steel plate 2 to be processed after the scribing in the second step on the upper pressing die 11, and enabling a processing bending position line 21 scribed on the steel plate 2 to be superposed with the position of the linear laser line emitted by the laser linear line positioner 15 adjusted in the third step; moving the upper pressing die 11 towards the lower pressing die 12, enabling a processing die 13 at the lower end of the upper pressing die 11 to be in contact with the steel plate 2 on the lower pressing die 12, pressing the steel plate 2 downwards, bending the steel plate 2, and enabling the steel plate 2 to be bent and formed along a processing bending position line 21; the processing die 13 improves the bending processing quality of the upper pressing die 11 and reduces the reworking times;
fifthly, repeating the operation of the fourth step to bend all the processing bending position lines 21 on the steel plate 2 to be processed, and finishing the bending processing of the steel plate 2;
sixthly, measuring the angle, namely measuring the bending angle of the steel plate 2 after bending by using an angle measuring tool; when the measured bending angle of the steel plate 2 does not meet the requirement, the bending part of the steel plate 2 is processed, bent and corrected to meet the requirement of the bending angle of the steel plate 2;
seventhly, repeating the fifth step and the sixth step to finish the bending processing operation of all the steel plates 2; and then pre-splicing the bent steel plates 2 into a square pipe, measuring the width dimension of the square pipe, and welding and fixing the joints of the pre-spliced steel plates 2 when the width dimension of the square pipe meets the requirement to finish the processing operation of the spliced square pipe.
The processing equipment 1 in the first step comprises an oil press or steel plate 2 bending processing equipment 1, the processing mould 13 is in a long cylindrical shape, and the diameter of the processing mould 13 is selected according to the radius of a bent fillet of the square pipe.
The upper pressing die 11 is integrally T-shaped, the lower end of the upper pressing die 11 is provided with a pointed end, the processing die 13 is vertically connected with the lower end of the upper pressing die 11, the processing die 13 is integrally rectangular in length direction, the lower pressing die 12 is integrally rectangular, the upper end of the lower pressing die 12 is provided with a plurality of grooves, and the grooves are triangular.
The bending position lines 21 of the steel plate 2 drawn on the surface of the steel plate 2 in the second step are straight lines parallel to each other for a plurality of days.
The positioning triangle 14 in the third step is placed in the groove of the lower die 12.
The bending angle of the steel plate 2 in the fourth step is determined according to the bending angle of the square tube which is spliced in advance subsequently, and the bending part of the steel plate 2 is round-corner bending.
The width of the square pipe in the seventh step is a length between the bent portions of the steel plate 2 after bending.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that; modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (7)
1. The processing method of the spliced square tube is characterized by comprising the following steps:
the method comprises the following steps of firstly, providing a processing device (1) and a processing die (13), wherein the processing device (1) comprises an upper pressing die (11) and a lower pressing die (12); the processing mould (13) is arranged at the lower end of the upper pressing mould (11);
secondly, marking the steel plate (2), marking the surface of the steel plate (2) to be processed into a square pipe, and marking a processing bending position line (21) of the steel plate (2) on the surface of the steel plate (2);
thirdly, fixing a laser line positioner (15) on the processing equipment (1), wherein the laser line positioner (15) emits a line laser line to be projected on the lower pressing die (12); placing a positioning triangular plate (14) on a lower pressing die (12), enabling the positioning triangular plate (14) to be positioned under an upper pressing die (11), moving the upper pressing die (11) towards the lower pressing die (12), enabling the lower end of the upper pressing die (11) to be connected with the middle of the surface of the positioning triangular plate (14), and simultaneously adjusting the position of a linear laser line emitted by a laser linear line positioner (15), so that the linear laser line emitted by the laser linear line positioner (15) is superposed with the joint of the lower end of the upper pressing die (11) and the surface of the positioning triangular plate (14); after the position adjustment of the linear laser line emitted by the laser linear line positioner (15) is finished, fixing the installation position of the laser linear line positioner (15) and the emission angle of the laser linear line positioner (15) and taking out a positioning triangular plate (14) on the lower pressing die (12);
fourthly, placing the steel plate (2) to be processed which is scribed in the second step on an upper pressing die (11), and superposing a processing bending position line (21) scribed on the steel plate (2) and a linear laser line position emitted by the laser linear line positioner (15) adjusted in the third step; moving an upper pressing die (11) towards a lower pressing die (12), enabling a processing die (13) at the lower end of the upper pressing die (11) to be in contact with a steel plate (2) on the lower pressing die (12) and pressing the steel plate (2) downwards, and performing bending processing on the steel plate (2) to enable the steel plate (2) to be bent and formed along a processing bending position line (21);
fifthly, repeating the operation of the fourth step to bend all the processing bending position lines (21) on the steel plate (2) to be processed, and finishing the bending processing of the steel plate (2);
sixthly, measuring the angle, namely measuring the bending angle of the steel plate (2) after bending by using an angle measuring tool; when the measured bending angle of the steel plate (2) does not meet the requirement, the bending part of the steel plate (2) is processed, bent and corrected to meet the requirement of the bending angle of the steel plate (2);
seventhly, repeating the fifth step and the sixth step to finish the bending processing operation of all the steel plates (2); and then pre-splicing the bent steel plates (2) into a square pipe, measuring the width dimension of the square pipe, and welding and fixing the joints of the pre-spliced steel plates (2) when the width dimension of the square pipe meets the requirement to finish the processing operation of the spliced square pipe.
2. The method for processing the spliced square pipe according to claim 1, wherein the processing equipment (1) in the first step comprises an oil press or steel plate (2) bending processing equipment (1), the processing mold (13) is in a long cylinder shape, and the diameter of the processing mold (13) is selected according to the fillet radius of the bent square pipe.
3. The method for processing the spliced square pipe according to claim 1, wherein the upper die (11) is integrally T-shaped, the lower end of the upper die (11) is provided with a tip, the processing die (13) is vertically connected with the lower end of the upper die (11), the length direction of the processing die (13) is integrally rectangular with the lower die (12), and the upper end of the lower die (12) is provided with a plurality of grooves which are triangular.
4. The method for processing the spliced square pipe according to claim 1, wherein the bending position lines (21) of the steel plates (2) marked on the surfaces of the steel plates (2) in the second step are a plurality of straight lines parallel to each other.
5. A method for processing spliced square pipes according to claim 1, wherein the positioning triangle (14) in the third step is placed in the groove of the lower die (12).
6. The method for processing the spliced square pipe according to claim 1, wherein the bending angle of the steel plate (2) in the fourth step is determined according to the bending angle of the square pipe to be spliced subsequently, and the bending part of the steel plate (2) is fillet bending.
7. The method for processing the spliced square pipe according to claim 1, wherein the width dimension of the square pipe in the seventh step is a length value between bent portions of the steel plate (2) after bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210951929.7A CN115446545A (en) | 2022-08-09 | 2022-08-09 | Method for processing spliced square tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210951929.7A CN115446545A (en) | 2022-08-09 | 2022-08-09 | Method for processing spliced square tube |
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| Publication Number | Publication Date |
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| CN115446545A true CN115446545A (en) | 2022-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210951929.7A Pending CN115446545A (en) | 2022-08-09 | 2022-08-09 | Method for processing spliced square tube |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0780553A (en) * | 1993-09-08 | 1995-03-28 | Topy Metari Kk | Manufacture of square tube |
| CN109772993A (en) * | 2018-12-27 | 2019-05-21 | 常州钢劲型钢股份有限公司 | Superelevation single weld seam square and rectangular pipe moulding process and molding die by force |
| CN110788172A (en) * | 2019-11-12 | 2020-02-14 | 云南建投机械制造安装工程有限公司 | Laser positioning bending machine and step-by-step forming method |
| CN111185726A (en) * | 2020-01-15 | 2020-05-22 | 中国十七冶集团有限公司 | Variable cross-section transition construction method for arc square tube |
| CN111761267A (en) * | 2020-07-01 | 2020-10-13 | 哈电集团（秦皇岛）重型装备有限公司 | Resilience type square tube welding inner side gas protection device |
-
2022
- 2022-08-09 CN CN202210951929.7A patent/CN115446545A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0780553A (en) * | 1993-09-08 | 1995-03-28 | Topy Metari Kk | Manufacture of square tube |
| CN109772993A (en) * | 2018-12-27 | 2019-05-21 | 常州钢劲型钢股份有限公司 | Superelevation single weld seam square and rectangular pipe moulding process and molding die by force |
| CN110788172A (en) * | 2019-11-12 | 2020-02-14 | 云南建投机械制造安装工程有限公司 | Laser positioning bending machine and step-by-step forming method |
| CN111185726A (en) * | 2020-01-15 | 2020-05-22 | 中国十七冶集团有限公司 | Variable cross-section transition construction method for arc square tube |
| CN111761267A (en) * | 2020-07-01 | 2020-10-13 | 哈电集团（秦皇岛）重型装备有限公司 | Resilience type square tube welding inner side gas protection device |
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