CN108453186B - Pipe expanding device for welding street lamp pole - Google Patents
Pipe expanding device for welding street lamp pole Download PDFInfo
- Publication number
- CN108453186B CN108453186B CN201810289301.9A CN201810289301A CN108453186B CN 108453186 B CN108453186 B CN 108453186B CN 201810289301 A CN201810289301 A CN 201810289301A CN 108453186 B CN108453186 B CN 108453186B
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- Prior art keywords
- guide sleeve
- central guide
- central
- base
- welding
- Prior art date
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- 238000003466 welding Methods 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 239000003638 chemical reducing agent Substances 0.000 claims description 18
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000011324 bead Substances 0.000 description 7
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a tube expanding device for welding a lamp post in the field of tube expander, which comprises a machine base, wherein a movable seat is connected to the machine base through a guide rail sliding block, one side of the movable seat is in transmission connection with a linear driving mechanism, a central guide sleeve is horizontally arranged on the movable seat, one end of the central guide sleeve is provided with a tube expanding cone, the tube expanding cone coincides with the axis of the lamp post, the tube expanding cone comprises a central disc, a plurality of swing supporting plates are arranged on the central disc at intervals along the circumferential direction, each swing supporting plate is tightened to the axis of the central guide sleeve through a tightening mechanism, a pushing head capable of axially moving along the central guide sleeve is arranged on the central guide sleeve, and the pushing head is in transmission connection with a transverse driving mechanism. The invention can directly swell the end opening of the street lamp pole, reduce the gap between the street lamp pole and the base flange hole, ensure that the welding is firmer and improve the welding precision.
Description
Technical Field
The invention belongs to the field of tube expander, and in particular relates to a tube expander for welding a lamp post.
Background
The street lamp pole is a rod piece for installing the street lamp, the bottom of the street lamp pole is connected with a base flange, and the base flange can be fixed on the ground through the embedded part, so that the street lamp is fixedly installed. The lamp post and the base flange are two separate components, and the lamp post and the base flange are required to be fixed in a welding mode. When the street lamp pole and the base flange are welded, in order to eliminate or reduce gaps between the street lamp pole and the base flange holes and improve welding accuracy, an opening at the end part of the street lamp pole needs to be expanded through the pipe expander, so that welding between the street lamp pole and the base flange is firmer and more reliable.
In the prior art, there is a tube expander, its structure includes expansion shell, expansion rod and a plurality of expansion beads, expansion rod and expansion bead are conical, expansion rod tapering is expansion bead tapering 2 times, and the lateral surface after expansion rod and expansion bead cooperation is cylindrical. When the pipe expander works, the expansion rod is pushed forward for a distance, the diameter of the outer side of the expansion bead is enlarged, the pipe expander is plugged into a pipe during pipe expansion, a proper device distance is reserved during initial expansion, then the expansion rod is pushed, after the expansion rod, the expansion bead and the inner wall of the pipe are tightly attached to each other, the expansion rod is driven by a spanner or a pipe expander to rotate clockwise, the expansion bead is rotated reversely, and the inner wall of the pipe is rolled to force the metal of the pipe wall to expand and the pipe diameter to be increased. The pipe expander has the defects that the operation is needed to be performed manually, the automation degree is low, the use is inconvenient, and the pipe expander can not be used for expanding the opening at the end part of the street lamp pole when the lamp pole cannot be directly welded.
Disclosure of Invention
The invention aims to provide an expanding device for welding a street lamp pole, which can directly expand an end opening of the street lamp pole, reduce gaps between the street lamp pole and a base flange hole, ensure that welding is firmer and improve welding precision.
The purpose of the invention is realized in the following way: the utility model provides a be used for light pole welded expand tube device, includes the frame, is connected with the removal seat through the guide rail slider on the frame, and one side and the transmission of straight line actuating mechanism of removal seat are connected, it is equipped with central uide bushing to remove the seat to go up the level, and the one end of central uide bushing is equipped with the expand tube cone, and the expand tube cone coincides with the axis of light pole, and the expand tube cone includes the center dish, is provided with a plurality of swing fagging along circumference interval on the center dish, and each swing fagging tightens up to central uide bushing axis through tightening mechanism, is provided with the propelling head that can follow central uide bushing axial displacement on the center uide bushing, and the propelling head is connected with sideslip actuating mechanism transmission.
When the street lamp rod is in operation, the street lamp rod is horizontally placed through the positioning tool, the linear driving mechanism pushes the movable seat, the movable seat moves to a position close to the street lamp rod, the expansion cone stretches into the end opening of the street lamp rod, the transverse moving driving device drives the pushing head to slide along the central guide sleeve, the pushing head pushes the swing supporting plate to swing outwards, the swing supporting plate is opened, the circumferential diameter of the expansion cone, which is in contact with the end opening of the street lamp rod, is increased, and the end opening of the street lamp rod is expanded, so that the expansion is realized. Compared with the prior art, the invention has the beneficial effects that: the expanding cone automatically stretches into the end opening of the street lamp pole, the swing supporting plate automatically expands to prop open the end opening of the street lamp pole, the automation degree is high, and the use is convenient; the gap between the street lamp pole and the base flange hole can be reduced, so that welding is firmer, and welding precision is improved.
As an improvement of the invention, the tightening mechanism is a tension spring for connecting the adjacent swing supporting plates. Each tension spring tightens adjacent swing supporting plates, each tension spring is in annular distribution, all the swing supporting plates are tightened towards the axis of the central guide sleeve, and when the swing supporting plates are outwards expanded, stable tension can be provided for the inner wall of the street lamp pole.
As a further improvement of the invention, the pushing head comprises an inner core part and an outer ring part, the outer ring part is sleeved on the periphery of the central guide sleeve, the inner core part is axially arranged inside the central guide sleeve, the inner core part and the outer ring part are connected through a connecting part penetrating through the side wall of the central guide sleeve in the radial direction, and a wall groove is formed on the side wall of the central guide sleeve corresponding to the connecting part. The pushing head can move back and forth along the part of the central guide sleeve, which is provided with the wall groove, and the part of the central guide sleeve, which is not provided with the wall groove, can not move, so that a limiting position is provided.
As a further improvement of the invention, the pushing head is arranged at the end part of the pushing shaft, the pushing shaft is axially arranged in the central guide sleeve, and the pushing shaft is in transmission connection with the transverse moving driving mechanism. The transverse moving driving mechanism drives the pushing shaft to move back and forth in the central guide sleeve,
as a further improvement of the invention, the central guide sleeve comprises a limiting section and a moving section, the pushing shaft comprises a large-diameter section and a small-diameter section, the large-diameter section is positioned in the limiting section, the inner diameter of the moving section is smaller than the outer diameter of the large-diameter section, and the small-diameter section moves in the moving section. The large-diameter section of the pushing shaft can move in the limiting section of the central guide sleeve, two end faces of the limiting section of the central guide sleeve are two limiting positions of the pushing shaft, and the small-diameter section of the pushing shaft moves back and forth in the moving section of the central guide sleeve.
As a further improvement of the invention, the limiting section of the central guide sleeve comprises two split sleeves which are arranged on two sides of the supporting seat in a split mode, an axial through hole is formed in the supporting seat corresponding to the split sleeve, a needle bearing is axially arranged in the through hole, and the large-diameter section of the shaft is pushed to penetrate through the needle bearing. The pushing shaft is supported on the supporting seat, and when the pushing shaft moves back and forth, the needle roller bearing can reduce friction.
As a further improvement of the invention, the transverse moving driving mechanism comprises a screw rod which is connected with the large-diameter section of the pushing shaft into a whole, the screw rod and the pushing shaft are coaxially arranged, a screw rod nut is sleeved on the screw rod, and thrust bearings are arranged at the left end and the right end of the screw rod nut. The thrust bearing limits the axial movement of the screw nut, the screw nut rotates to drive the screw to axially move, and the pushing shaft realizes the transverse movement.
As a further improvement of the invention, the driven gear is concentrically arranged on the screw nut, the driven gear and the screw nut are integrally arranged, the driven gear is meshed with the driving gear, the driving gear is arranged at the output end of the speed reducer, and the speed reducer is in transmission connection with the motor. The output end of the motor is decelerated by the speed reducer to drive the driving gear to rotate, the driving gear drives the driven gear to rotate, and the screw nut realizes rotation.
In order to save space, the device is more compact in structure, a speed reducer seat is arranged on the movable seat, a through hole which can allow a screw rod to axially pass through is formed in the speed reducer seat, and thrust bearings at two ends are respectively arranged on the support seat and the speed reducer seat.
As a further improvement of the invention, the linear driving mechanism comprises an oil cylinder arranged on the base, and the extending end of a piston rod of the oil cylinder is hinged with the movable base. The piston rod of the oil cylinder drives the movable seat to move along the guide rail.
Drawings
Fig. 1 is a top view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is a partial enlarged view of fig. 3.
Fig. 5 is a partial enlarged view of fig. 3.
Fig. 6 is a schematic structural view of the center guide bush.
Fig. 7 is a schematic view of the structure of the pushing shaft and the screw.
Fig. 8 is a cross-sectional view AA of fig. 3.
Fig. 9 is a cross-sectional view in BB of fig. 3.
Fig. 10 is a schematic structural view of the pusher head.
Fig. 11 is a CC-sectional view of fig. 3.
Fig. 12 is a DD cross-sectional view of fig. 3.
The device comprises a machine seat 1, a guide rail sliding block 2, a moving seat 3, an oil cylinder 4, a center guide sleeve 5, a limiting section 501, a moving section 502, a tube expansion cone 6, a center disc 601, a swinging supporting plate 602, a pushing head 7, an inner core part 701, an outer ring part 702, a connecting part 703, a tension spring 8, a wall groove 9, a pushing shaft 10, a large diameter section 1001, a small diameter section 1002, a supporting seat 11, a needle bearing 12, a lead screw 13, a lead screw nut 13a, a thrust bearing 14, a driven gear 15, a driving gear 16, a speed reducer 17a machine seat 18 and a motor.
Detailed Description
1-12, is a tube expanding device for welding a street lamp pole, comprising a machine base 1, wherein a movable base 3 is connected to the machine base 1 through a guide rail sliding block 2, one side of the movable base 3 is in transmission connection with a linear driving mechanism, the linear driving mechanism comprises an oil cylinder 4 arranged on the machine base 1, and the extending end of a piston rod of the oil cylinder 4 is hinged with the movable base 3; the movable seat 3 is horizontally provided with a central guide sleeve 5, one end of the central guide sleeve 5 is provided with an expansion cone 6, the expansion cone 6 is overlapped with the axis of the street lamp pole, the expansion cone 6 comprises a central disc 601, a plurality of swing supporting plates 602 are circumferentially arranged on the central disc 601 at intervals, each swing supporting plate 602 is tightened towards the axis of the central guide sleeve 5 through a tightening mechanism, and the tightening mechanism is a tension spring 8 connected with the adjacent swing supporting plates 602; the center guide sleeve 5 is provided with a pushing head 7 which can axially move along the center guide sleeve 5, and the pushing head 7 is in transmission connection with the transverse moving driving mechanism.
The pushing head 7 comprises an inner core part 701 and an outer ring part 702, the outer ring part 702 is sleeved on the periphery of the central guide sleeve 5, the inner core part 701 is axially arranged inside the central guide sleeve 5, the inner core part 701 and the outer ring part 702 are connected through a connecting part which radially penetrates through the side wall of the central guide sleeve 5, and a plurality of annular wall grooves 9 which are distributed at intervals are formed in the side wall of the central guide sleeve 5 corresponding to the connecting part.
The pushing head 7 is arranged at the end part of the pushing shaft 10, the pushing shaft 10 is axially arranged in the center guide sleeve 5, and the pushing shaft 10 is in transmission connection with the transverse moving driving mechanism.
The center guide sleeve 5 comprises a limiting section 501 and a moving section 502, the pushing shaft 10 comprises a large-diameter section 1001 and a small-diameter section 1002, the large-diameter section 1001 is located in the limiting section 501, the inner diameter of the moving section 3 is smaller than the outer diameter of the large-diameter section 1001, and the small-diameter section 1002 moves in the moving section 502. The limiting section 501 of the center guide sleeve 5 comprises two split sleeves which are arranged on two sides of the supporting seat 11 in a split mode, an axial through hole is formed in the supporting seat 11 corresponding to the split sleeves, a needle bearing 12 is axially arranged in the through hole, and the large-diameter section 1001 of the pushing shaft 10 penetrates through the needle bearing 12.
The transverse moving driving mechanism comprises a screw rod 13 connected with the large-diameter section 1001 of the pushing shaft 10 into a whole, the screw rod 13 and the pushing shaft 10 are coaxially arranged, a screw rod nut 13a is sleeved on the screw rod 13, and thrust bearings 14 are respectively arranged at the left end and the right end of the screw rod nut 13 a.
The screw nut 13a is concentrically provided with a driven gear 15, the driven gear 15 and the screw nut 13a are integrally arranged, the driven gear 15 is meshed with a driving gear 16, the driving gear 16 is arranged at the output end of a speed reducer 17, and the speed reducer 17 is in transmission connection with a motor 18.
The movable seat 3 is provided with a speed reducer seat 17a, the speed reducer seat 17a is provided with a through hole which can axially pass through the lead screw 13, and the thrust bearings 14 at the two ends are respectively arranged on the supporting seat 11 and the speed reducer seat 17 a.
When the device works, the lamp pole is horizontally placed through the positioning tool, the oil cylinder 4 pushes the movable seat 3, the movable seat 3 moves to a position close to the lamp pole, the expansion cone 6 stretches into an end opening of the lamp pole, the motor 18 drives the driving gear 16 to rotate after being decelerated by the speed reducer 17, the driving gear 16 drives the driven gear 15 to rotate, the screw nut 13a also rotates, the screw 13 is driven to axially move, the pushing shaft 10 moves along the central guide sleeve 5, the large-diameter section 1001 of the pushing shaft 10 can move at the limiting section 501 of the central guide sleeve 5, the pushing head 7 is limited, the pushing head 7 pushes the swing support plate 602 to swing outwards, the swing support plate 602 is opened, the circumferential diameter of the expansion cone 6, which is in contact with the end opening of the lamp pole, is increased, the tension spring 8 pulls the swing support plate 602 inwards, the tension of the expansion cone 6 is more stable, the end opening of the lamp pole is stretched, and the expansion pipe is realized. The device has the advantages that: the expansion cone 6 automatically stretches into the end opening of the lamp post, the swing supporting plate 602 automatically expands to prop up the end opening of the lamp post, and the degree of automation is high and the use is convenient; the gap between the street lamp pole and the base flange hole can be reduced, so that welding is firmer, and welding precision is improved.
The invention is not limited to the above embodiments, and based on the technical solution disclosed in the invention, a person skilled in the art may make some substitutions and modifications to some technical features thereof without creative effort according to the technical content disclosed, and all the substitutions and modifications are within the protection scope of the invention.
Claims (3)
1. The pipe expanding device for welding the lamp post is characterized by comprising a base, wherein a movable seat is connected to the base through a guide rail sliding block, one side of the movable seat is in transmission connection with a linear driving mechanism, a central guide sleeve is horizontally arranged on the movable seat, one end of the central guide sleeve is provided with a pipe expanding cone, the pipe expanding cone is overlapped with the axis of the lamp post, the pipe expanding cone comprises a central disc, a plurality of swing supporting plates are arranged on the central disc at intervals along the circumferential direction, each swing supporting plate is tightened to the axis of the central guide sleeve through a tightening mechanism, a pushing head capable of axially moving along the central guide sleeve is arranged on the central guide sleeve, and the pushing head is in transmission connection with a transverse moving driving mechanism; the tightening mechanism is a tension spring connected with the adjacent swing supporting plate; the pushing head comprises an inner core part and an outer ring part, the outer ring part is sleeved on the periphery of the central guide sleeve, the inner core part is axially arranged inside the central guide sleeve, the inner core part and the outer ring part are connected through a connecting part penetrating through the side wall of the central guide sleeve in the radial direction, and a wall groove is formed in the side wall of the central guide sleeve corresponding to the connecting part; the pushing head is arranged at the end part of the pushing shaft, the pushing shaft is axially arranged in the central guide sleeve, and the pushing shaft is in transmission connection with the transverse movement driving mechanism; the center guide sleeve comprises a limiting section and a moving section, the pushing shaft comprises a large-diameter section and a small-diameter section, the large-diameter section is positioned in the limiting section, the inner diameter of the moving section is smaller than the outer diameter of the large-diameter section, and the small-diameter section moves in the moving section; the central guide sleeve limiting section comprises two split sleeves which are arranged on two sides of the supporting seat in a split mode, an axial through hole is formed in the supporting seat corresponding to the split sleeves, a needle bearing is axially arranged in the through hole, and the large-diameter section of the pushing shaft penetrates through the needle bearing; the transverse moving driving mechanism comprises a screw rod connected with the large-diameter section of the pushing shaft into a whole, the screw rod and the pushing shaft are coaxially arranged, a screw rod nut is sleeved on the screw rod, and thrust bearings are arranged at the left end and the right end of the screw rod nut; the screw nut is concentrically provided with a driven gear, the driven gear and the screw nut are integrally arranged, the driven gear is meshed with a driving gear, the driving gear is arranged at the output end of a speed reducer, and the speed reducer is connected with a motor in a transmission way.
2. The expansion device for welding the lamp post according to claim 1, wherein the movable base is provided with a speed reducer base, the speed reducer base is provided with a through hole which can axially pass through the screw rod, and the thrust bearings at the two ends are respectively arranged on the supporting base and the speed reducer base.
3. The expansion device for welding a lamp post according to claim 2, wherein the linear driving mechanism comprises an oil cylinder installed on the base, and a piston rod extending end of the oil cylinder is hinged with the movable base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810289301.9A CN108453186B (en) | 2018-04-03 | 2018-04-03 | Pipe expanding device for welding street lamp pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810289301.9A CN108453186B (en) | 2018-04-03 | 2018-04-03 | Pipe expanding device for welding street lamp pole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108453186A CN108453186A (en) | 2018-08-28 |
| CN108453186B true CN108453186B (en) | 2024-04-09 |
Family
ID=63238103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810289301.9A Active CN108453186B (en) | 2018-04-03 | 2018-04-03 | Pipe expanding device for welding street lamp pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108453186B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR55829E (en) * | 1943-01-19 | 1952-09-08 | Louvroil Montbard Aulnoye | Method and device for bench expansion of metal tubes |
| CH493310A (en) * | 1968-06-17 | 1970-07-15 | Gempp & Unold Ag | Device for conical expansion of sheet metal container frames |
| JPH0230338A (en) * | 1988-07-18 | 1990-01-31 | Osugaa Mach:Kk | Method and apparatus for machining end part of pipe and spectacle punch used therefor |
| JPH0666828U (en) * | 1993-02-05 | 1994-09-20 | 石川島播磨重工業株式会社 | Heat transfer tube expansion device |
| US6446321B1 (en) * | 1998-12-08 | 2002-09-10 | Itp | Method for producing pipes to be connected in a double-wall piping system and implementing machine |
| CN102430657A (en) * | 2012-01-12 | 2012-05-02 | 信阳市四通机械制造有限公司 | Tube expander |
| CN102513460A (en) * | 2011-12-16 | 2012-06-27 | 大连三高科技发展有限公司 | Steel pipe end sizing mill assembly with diameter expanding function |
| CN104588520A (en) * | 2014-12-17 | 2015-05-06 | 杜玉华 | Steel pipe installing and expanding equipment with high-temperature heating and remodeling functions |
| CN104942170A (en) * | 2015-07-14 | 2015-09-30 | 奥美森智能装备股份有限公司 | Expansion head structure and tube expansion equipment provided with same |
| CN208033484U (en) * | 2018-04-03 | 2018-11-02 | 扬州市欧亿照明电气有限公司 | A kind of pipe-expanding device for light pole welding |
-
2018
- 2018-04-03 CN CN201810289301.9A patent/CN108453186B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR55829E (en) * | 1943-01-19 | 1952-09-08 | Louvroil Montbard Aulnoye | Method and device for bench expansion of metal tubes |
| CH493310A (en) * | 1968-06-17 | 1970-07-15 | Gempp & Unold Ag | Device for conical expansion of sheet metal container frames |
| JPH0230338A (en) * | 1988-07-18 | 1990-01-31 | Osugaa Mach:Kk | Method and apparatus for machining end part of pipe and spectacle punch used therefor |
| JPH0666828U (en) * | 1993-02-05 | 1994-09-20 | 石川島播磨重工業株式会社 | Heat transfer tube expansion device |
| US6446321B1 (en) * | 1998-12-08 | 2002-09-10 | Itp | Method for producing pipes to be connected in a double-wall piping system and implementing machine |
| CN102513460A (en) * | 2011-12-16 | 2012-06-27 | 大连三高科技发展有限公司 | Steel pipe end sizing mill assembly with diameter expanding function |
| CN102430657A (en) * | 2012-01-12 | 2012-05-02 | 信阳市四通机械制造有限公司 | Tube expander |
| CN104588520A (en) * | 2014-12-17 | 2015-05-06 | 杜玉华 | Steel pipe installing and expanding equipment with high-temperature heating and remodeling functions |
| CN104942170A (en) * | 2015-07-14 | 2015-09-30 | 奥美森智能装备股份有限公司 | Expansion head structure and tube expansion equipment provided with same |
| CN208033484U (en) * | 2018-04-03 | 2018-11-02 | 扬州市欧亿照明电气有限公司 | A kind of pipe-expanding device for light pole welding |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108453186A (en) | 2018-08-28 |
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