CN111185653B - Tubular product intersecting line plasma profiling cutting device and processing method thereof - Google Patents

Tubular product intersecting line plasma profiling cutting device and processing method thereof Download PDF

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Publication number
CN111185653B
CN111185653B CN202010177352.XA CN202010177352A CN111185653B CN 111185653 B CN111185653 B CN 111185653B CN 202010177352 A CN202010177352 A CN 202010177352A CN 111185653 B CN111185653 B CN 111185653B
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profiling
intersecting line
tubular product
plasma
fixing frame
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CN111185653A (en
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周景亮
金博
朱真鹏
高进文
曾晨辉
陈江鑫
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Fujian University of Technology
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Fujian University of Technology
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K10/00—Welding or cutting by means of a plasma
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02—Carriages for supporting the welding or cutting element
    • B23K37/0252—Steering means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
    • B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/06—Tubes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Arc Welding In General (AREA)

Abstract

The invention relates to a tubular product intersecting line plasma profiling cutting device and a processing method thereof, wherein the device comprises a bottom frame, a profiling explorator with a profiling curved surface at the front end is arranged on the bottom frame, a rotating shaft capable of rotating relative to the profiling explorator is arranged in the middle of the profiling explorator in a penetrating way, the front end of the rotating shaft is fixedly connected with a disc-shaped fixing frame, and a clamp mechanism which is positioned in front of the disc-shaped fixing frame and used for clamping the tubular product is arranged on the bottom frame; the utility model discloses a pipe cutting device, including disk-shaped fixing frame, track pole, plasma cutting head, the track pole that the back end withstands the profile modeling curved surface of profile modeling profiling and can back and forth movement under its effect is installed to disk-shaped fixing frame one end, the track pole front end is connected with and is used for stretching into in the tubular product and carries out the plasma cutting head of cutting it. The tubular product intersecting line plasma profiling cutting device has the advantages of simple structure, low manufacturing cost, capability of greatly reducing equipment investment cost and convenient maintenance; the volume is small, the weight is light, the use is convenient, and the disassembly and the assembly are easy; the processing precision is high, and work efficiency is high, and adaptable intersecting line processing of different diameter tubular product, the commonality is good.

Description

Tubular product intersecting line plasma profiling cutting device and processing method thereof
Technical Field
The invention relates to a tubular product intersecting line plasma profiling cutting device and a processing method thereof.
Background
In our daily life, the pipeline is a very common steel product, such as a fire-fighting pipeline, a station support beam, a steel pipe rack, a drainage pipeline and the like; the joint of the two materials often presents the intersecting line, and the existing pipe intersecting line processing method mostly adopts the lagging complex operation processes of sample plate making, scribing, manual lofting, manual cutting, manual polishing and the like, and the manual cutting is flexible and convenient, but has poor manual cutting quality, large size error, large material waste, large subsequent processing workload, bad labor condition and low production efficiency. If a large-scale numerical control plasma cutting machine tool is adopted, the efficiency and the cutting quality of the plate cutting area can be effectively improved, the labor intensity of operators is lightened, but the machine tool has large volume, occupies a large space, and has high equipment cost and high maintenance cost; and the demands on the skilled man of the handling are relatively high.
Disclosure of Invention
Therefore, the invention aims to provide the tubular product intersecting line plasma profiling cutting device and the processing method thereof, which have the advantages of simple structure, convenient use, small volume and low input cost.
The invention is realized by adopting the following scheme: the pipe intersecting line plasma profiling cutting device comprises a bottom frame, wherein a profiling explorator with a profiling curved surface at the front end is arranged on the bottom frame, a rotating shaft capable of rotating relative to the profiling explorator is arranged in a penetrating manner in the middle of the profiling explorator, a disc-shaped fixing frame is fixedly connected to the front end of the rotating shaft, and a clamp mechanism which is positioned in front of the disc-shaped fixing frame and used for clamping a pipe is arranged on the bottom frame; the utility model discloses a pipe cutting device, including disk-shaped fixing frame, track pole, plasma cutting head, the track pole that the back end withstands the profile modeling curved surface of profile modeling profiling and can back and forth movement under its effect is installed to disk-shaped fixing frame one end, the track pole front end is connected with and is used for stretching into in the tubular product and carries out the plasma cutting head of cutting it.
Further, a bearing seat positioned at the rear side of the profiling explorator is arranged on the underframe, the rotating shaft is in rotary fit with the bearing seat through a bearing, and the rear end of the rotating shaft is in transmission connection with the motor spindle through a synchronous pulley and a synchronous belt.
Further, the rear end of the track rod is connected with a track ball head, and a spring for pushing the track rod backwards is sleeved on the track rod; the track rod is sleeved with a linear bearing in sliding fit with the track rod, a rectangular slot hole is formed in one end of the disc-shaped fixing frame, and the linear bearing is installed in the rectangular slot hole.
Further, a pair of fixed V-shaped blocks for being matched and clamped with the linear bearing are arranged in the rectangular slotted hole; straight grooves penetrating through the two sides of the disc-shaped fixing frame and perpendicular to the rotating shaft in the length direction are formed in the two sides of the rectangular slotted hole, and a screw rod which penetrates through the straight grooves and is locked by a nut positioned on the side of the disc-shaped fixing frame is fixedly connected to one outer side of the fixed V-shaped block.
Further, a connecting sleeve is sleeved outside the plasma cutting head, the connecting sleeve is fixed at the front end of the track rod, a threaded through hole is formed in the side face of the connecting sleeve, and a locking screw for propping up the plasma cutting head is arranged in the threaded through hole.
Further, the clamp mechanism comprises a U-shaped clamp frame, and the bottom of the clamp frame is fixedly connected to the underframe through bolts; the clamping device is characterized in that a pair of V-shaped workpiece clamping frames for clamping pipes in a matched mode are arranged in the middle of the clamping frame, locking bolts are arranged on two sides of the clamping frame in a penetrating mode, and the workpiece clamping frames are connected to one inward end of the locking bolts.
The invention adopts another technical scheme that: the processing method of the tubular product intersecting line plasma profiling cutting device comprises the following steps: (1) Clamping a pipe to be processed on a clamp mechanism for locking, and extending a plasma cutting head at the rear end of the track rod into the pipe; (2) According to the radius of the pipe to be processed which is required to be cut, adjusting the position of a fixed V block on a disc-type fixing frame, and locking the fixed V block after determining the position of a track rod; (3) The motor 1 is started, the disk-shaped fixing frame is driven to rotate through the rotation of the rotating shaft, meanwhile, the track ball head walks on the profiling curved surface of the profiling along the appointed intersecting line track, and the plasma cutting head is driven by the track rod to simultaneously do the same intersecting line track motion, so that the pipe cutting processing can be completed.
Compared with the prior art, the invention has the following beneficial effects: the tubular product intersecting line plasma profiling cutting device has the advantages of simple structure, low manufacturing cost, capability of greatly reducing equipment investment cost and convenient maintenance; the volume is small, the weight is light, the use is convenient, and the disassembly and the assembly are easy; the processing precision is high, and work efficiency is high, and adaptable intersecting line processing of different diameter tubular product, the commonality is good.
The present invention will be further described in detail below with reference to specific embodiments and associated drawings for the purpose of making the objects, technical solutions and advantages of the present invention more apparent.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a side view of an embodiment of the present invention;
FIG. 3 is a view in the direction K of FIG. 2;
FIG. 4 is a schematic diagram of a process for forming a contoured surface of a contoured profile in an embodiment of the present invention;
FIG. 5 is a perspective view of a profile modeling configuration in an embodiment of the present invention;
the reference numerals in the figures illustrate: 1-motor, 2-synchronous pulley, 3-bearing frame, 4-profile modeling, 5.—track bulb, 6-pivot, 7-disk mount, 8-bolt, 9-work piece clamping frame, 10-anchor clamps frame, 11-plasma cutting head, 12-adapter sleeve, 13-linear bearing, 14-spring, 15-track pole, 16-switch, 17-bearing, 18-chassis, 19-bolt, 20-fixed V piece.
Detailed Description
As shown in fig. 1-3, a tubular product intersecting line plasma profiling cutting device comprises a bottom frame 18, wherein a profiling explorator 4 with a profiling curved surface at the front end is installed on the bottom frame 18, a rotating shaft 6 capable of rotating relative to the profiling explorator 4 is penetrated in the middle of the profiling explorator 4, the front end of the rotating shaft 6 is fixedly connected with a disc-shaped fixing frame 7, a clamp mechanism which is positioned in front of the disc-shaped fixing frame 7 and used for clamping a tubular product is installed on the bottom frame 18, and the axial leads of the tubular product on the rotating shaft and the clamp mechanism coincide; a track rod 15 with the rear end propping against the profiling curved surface of the profiling die and capable of moving back and forth under the action of the profiling curved surface is arranged at one end of the disc-shaped fixing frame 7, and a plasma cutting head 11 used for extending into a pipe to cut the pipe is connected to the front end of the track rod 15; the pipe to be processed is clamped on the clamp mechanism, the disc-shaped fixing frame 7 is driven to rotate through the rotation of the rotating shaft 6, so that the track rod rotates around the rotating shaft, meanwhile, the rear end of the track rod walks on the profiling curved surface of the profiling 4 along a specified intersecting line track, and the front end plasma cutting head 6 is driven to do the same intersecting line track motion, and therefore intersecting line cutting processing of the pipe can be completed. The tubular product intersecting line plasma profiling cutting device has the advantages of simple structure, low manufacturing cost, capability of greatly reducing equipment investment cost and convenient maintenance; and the device has the advantages of small volume, light weight, good flexibility, convenient use, easy disassembly and assembly, high processing precision and high working efficiency.
In this embodiment, the bearing seat 3 located at the rear side of the profiling explorator 4 is installed on the underframe 18, the rotating shaft 6 is rotationally matched with the bearing seat 3 through a bearing 17, the rear end of the rotating shaft 6 is in transmission connection with the main shaft of the motor 1 through the synchronous pulley 2 and the synchronous belt, the power provided by the motor 1 is transmitted to the rotating shaft 6 through the synchronous belt and the synchronous pulley, and the rotating shaft 6 transmits the power to the disc-shaped fixing frame 7 through the bearing 17 to drive the disc-shaped fixing frame 7 and the track rod to do circular motion.
In this embodiment, the rear end of the track rod 15 is connected with a track ball 5, and a spring 14 for pushing the track rod 15 backward is sleeved on the track rod 15; the track rod 15 is sleeved with a linear bearing 13 in sliding fit with the track rod, one end of the disc-shaped fixing frame 7 is provided with a rectangular slot, and the linear bearing 13 is arranged in the rectangular slot; the track ball head can be well attached to the surface of the die to move through the spring 14, so that the track ball head cannot be separated from the track when the track ball head moves up and down along with the profiling; the linear bearing has the advantages of small friction and good stability, and can obtain stable linear motion with high precision.
In this embodiment, a pair of fixed V blocks 20 for cooperatively clamping the linear bearing are disposed in the rectangular slot; straight grooves which penetrate through the two side edges of the disc-shaped fixing frame and are perpendicular to the rotating shaft in the length direction are formed in the two sides of the rectangular slotted hole, and a screw rod which penetrates through the straight grooves and is locked by a nut positioned on the side edge of the disc-shaped fixing frame is fixedly connected to one side of the fixed V-shaped block outwards; the position of the fixed V block can be adjusted after unscrewing the nut, the position of the track rod is adjusted, the radial position of the rear end of the track rod on the profiling curved surface of the profiling can be adjusted, intersecting line tracks with different diameters can be obtained, and after adjustment, the locking nut is locked, so that the radius cannot deviate in the machining process, and the accuracy is guaranteed. The profiling template is a core component of the integral device, and the profiling curved surface design on the profiling template can meet all intersecting line cutting of the range between the maximum diameter and the diameter of the rotating shaft, so that the profiling template has wide application range and good universality.
In this embodiment, the plasma cutting head 11 is sleeved with a connecting sleeve 12, the connecting sleeve 12 is fixed at the front end of the track rod 15, a threaded through hole is formed in the side surface of the connecting sleeve 12, and a locking screw for tightly pushing the plasma cutting head is arranged in the threaded through hole.
In this embodiment, the fixture mechanism comprises a U-shaped fixture frame 10, and the bottom of the fixture frame 10 is fixedly connected to the underframe 18 through bolts; the middle of the clamp frame 10 is provided with a pair of V-shaped workpiece clamping frames 9 for clamping pipes in a matched mode, locking bolts are arranged on two sides of the clamp frame 10 in a penetrating mode, the workpiece clamping frames are connected to the inward ends of the locking bolts, threaded holes matched with the locking bolts are formed in two sides of the clamp frame 10, and the inward ends of the locking bolts are in rotary matching with the corresponding workpiece clamping frames 9.
The invention mainly realizes the cutting processing of the pipe intersecting line through the profiling curved surface on the profiling explorator, and the profiling curved surface on the profiling explorator is processed in the following way: firstly, designing a profiling curved surface, drawing a cylinder A with a constant diameter according to SOLIWORKS software, drawing a cylinder B with a diameter smaller than that of the cylinder A on the surface of the cylinder A, enabling the two cylinders to intersect to generate an intersecting line, and extracting the intersecting line; repeating the above method to gradually reduce the diameter of the cylinder B, extracting intersecting lines with different sizes each time, and reaching the minimum diameter of the ideal intersecting line; then, lofting all extracted intersecting lines into a curved surface by SOLIWORKS software, thereby obtaining a profiling curved surface on a profiling explorator, as shown in figure 4; and then the profile curve diagram is saved into STEP format by SOLIWORKS software, and the file is imported into a Mastercam to generate NC codes and transmitted to a numerical control machining center for machining, so that the required profile modeling is machined, as shown in figure 5.
The processing process of the tubular product intersecting line plasma profiling cutting device comprises the following steps: clamping a pipe to be processed on a workpiece clamping frame 9, and locking, wherein a plasma cutting head at the rear end of the track rod extends into the pipe; according to the radius of the pipe to be processed which needs to be cut, the position of the fixed V-shaped block 20 on the disc-shaped fixing frame 7 is adjusted, and after the position of the track rod 15 is determined, the fixed V-shaped block 20 is locked; the motor 1 is powered on and started by pressing the start switch 16, the disk-shaped fixing frame 7 is driven to rotate through the rotation of the rotating shaft 6, meanwhile, the track ball head 5 walks on the profiling explorator 4 along the appointed intersecting line track, and the plasma cutting head is driven to do the same intersecting line movement through the track rod 15, so that the steel pipe workpiece cutting machining can be completed.
The processing method of the tubular product intersecting line plasma profiling cutting device comprises the following steps: (1) Clamping a pipe to be processed on a workpiece clamping frame 9 of a clamp mechanism, and locking, wherein a plasma cutting head at the rear end of a track rod extends into the pipe; (2) According to the radius of the pipe to be processed which needs to be cut, the position of a fixed V block on a disc-type fixing frame is adjusted, the position of a track rod is determined, and then a nut is screwed to lock the fixed V block; (3) The switch 16 is pressed down, the motor 1 is started, the disk-shaped fixing frame is driven to rotate through the rotation of the rotating shaft, meanwhile, the track ball head walks on the profiling curved surface of the profiling along the appointed intersecting line track, and the plasma cutting head is driven to do the same intersecting line track motion through the track rod, so that the pipe cutting processing can be completed.
While the foregoing is directed to the preferred embodiment, other and further embodiments of the invention will be apparent to those skilled in the art from the following description, wherein the invention is described, by way of illustration and example only, and it is intended that the invention not be limited to the specific embodiments illustrated and described, but that the invention is to be limited to the specific embodiments illustrated and described.

Claims (7)

1. A tubular product looks transversal plasma profile modeling cutting device, its characterized in that: the device comprises a bottom frame, wherein a profiling explorator with a profiling curved surface at the front end is arranged on the bottom frame, a rotating shaft capable of rotating relative to the profiling explorator is arranged in the middle of the profiling explorator in a penetrating manner, the front end of the rotating shaft is fixedly connected with a disc-shaped fixing frame, and a clamp mechanism which is positioned in front of the disc-shaped fixing frame and used for clamping pipes is arranged on the bottom frame; a track rod with the rear end propping against the profiling curved surface of the profiling template and capable of moving back and forth under the action of the track rod is arranged at one end of the disc-shaped fixing frame, and the front end of the track rod is connected with a plasma cutting head which is used for extending into the pipe to cut the pipe; the profiling curved surface processing mode on the profiling explorator is as follows: firstly, designing a profiling curved surface, drawing a cylinder A with a constant diameter according to SOLIWORKS software, drawing a cylinder B with a diameter smaller than that of the cylinder A on the surface of the cylinder A, enabling the two cylinders to intersect to generate an intersecting line, and extracting the intersecting line; repeating the above method to gradually reduce the diameter of the cylinder B, extracting intersecting lines with different sizes each time, and reaching the minimum diameter of the ideal intersecting line; then lofting all extracted intersecting lines into a curved surface by SOLIWORKS software, thereby obtaining a profiling curved surface on a profiling explorator; and then the profile curve diagram is saved into STEP format by SOLIWORKS software, and the file is imported into a Mastercam to generate NC codes and transmitted to a numerical control machining center for machining, so that the required profile modeling is machined.
2. The tubular product intersecting line plasma contour cutting device as defined in claim 1, wherein: the chassis is provided with a bearing seat positioned at the rear side of the profiling, the rotating shaft is in rotary fit with the bearing seat through a bearing, and the rear end of the rotating shaft is in transmission connection with the motor spindle through a synchronous pulley and a synchronous belt.
3. The tubular product intersecting line plasma contour cutting device as defined in claim 1, wherein: the rear end of the track rod is connected with a track ball head, and a spring for pushing the track rod backwards is sleeved on the track rod; the track rod is sleeved with a linear bearing in sliding fit with the track rod, a rectangular slot hole is formed in one end of the disc-shaped fixing frame, and the linear bearing is installed in the rectangular slot hole.
4. A tubular product intersecting line plasma profiling cutting device as claimed in claim 3, wherein: a pair of fixed V-shaped blocks used for being matched with and clamping the linear bearing are arranged in the rectangular slotted hole; straight grooves penetrating through the two sides of the disc-shaped fixing frame and perpendicular to the rotating shaft in the length direction are formed in the two sides of the rectangular slotted hole, and a screw rod which penetrates through the straight grooves and is locked by a nut positioned on the side of the disc-shaped fixing frame is fixedly connected to one outer side of the fixed V-shaped block.
5. The tubular product intersecting line plasma contour cutting device as defined in claim 1, 3 or 4, wherein: the plasma cutting head is sleeved with a connecting sleeve, the connecting sleeve is fixed at the front end of the track rod, a threaded through hole is formed in the side face of the connecting sleeve, and a locking screw for propping up the plasma cutting head is arranged in the threaded through hole.
6. The tubular product intersecting line plasma contour cutting device as defined in claim 1, wherein: the clamp mechanism comprises a U-shaped clamp frame, and the bottom of the clamp frame is fixedly connected to the underframe through bolts; the clamping device is characterized in that a pair of V-shaped workpiece clamping frames for clamping pipes in a matched mode are arranged in the middle of the clamping frame, locking bolts are arranged on two sides of the clamping frame in a penetrating mode, and the workpiece clamping frames are connected to one inward end of the locking bolts.
7. A method of processing the tubular product intersecting line plasma profile cutting device as defined in claim 4, wherein: the method comprises the following steps: (1) Clamping a pipe to be processed on a clamp mechanism for locking, and extending a plasma cutting head at the rear end of the track rod into the pipe; (2) According to the radius of the pipe to be processed which is required to be cut, adjusting the position of a fixed V block on a disc-type fixing frame, and locking the fixed V block after determining the position of a track rod; (3) The motor is started, the disk-shaped fixing frame is driven to rotate through the rotation of the rotating shaft, meanwhile, the track ball head walks on the profiling curved surface of the profiling along the appointed intersecting line track, and the plasma cutting head is driven by the track rod to simultaneously do the same intersecting line track motion, so that the pipe cutting processing can be completed.
CN202010177352.XA 2020-03-13 2020-03-13 Tubular product intersecting line plasma profiling cutting device and processing method thereof Active CN111185653B (en)

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CN111185653B true CN111185653B (en) 2023-06-16

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CN114226909B (en) * 2021-12-03 2023-08-11 渤海造船厂集团有限公司 Profiling device and method for cylindrical steel structure

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DE2409520A1 (en) * 1974-02-28 1975-09-11 Messer Griesheim Gmbh DEVICE FOR DRIVING A CUTTING OR WELDING TORCH
US4219370A (en) * 1979-02-21 1980-08-26 Chicago Bridge & Iron Company Apparatus and method for cutting and beveling pipe ends
DE59207653D1 (en) * 1991-08-03 1997-01-23 Franz Kreuzinger Method and device for generating the penetration curve of two bodies to be joined together
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CN212094797U (en) * 2020-03-13 2020-12-08 福建工程学院 Plasma profile modeling cutting device for pipe intersecting line

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