CN110355232B - Steel pipe spin-expanding system and steel pipe spin-expanding machine - Google Patents
Steel pipe spin-expanding system and steel pipe spin-expanding machine Download PDFInfo
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- CN110355232B CN110355232B CN201910318090.1A CN201910318090A CN110355232B CN 110355232 B CN110355232 B CN 110355232B CN 201910318090 A CN201910318090 A CN 201910318090A CN 110355232 B CN110355232 B CN 110355232B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 142
- 239000010959 steel Substances 0.000 title claims abstract description 142
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 239000003638 chemical reducing agent Substances 0.000 claims description 25
- 230000033001 locomotion Effects 0.000 claims description 8
- 239000003921 oil Substances 0.000 abstract description 21
- 210000001503 joint Anatomy 0.000 abstract description 20
- 238000012545 processing Methods 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 6
- 239000010720 hydraulic oil Substances 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 description 28
- 238000013519 translation Methods 0.000 description 19
- 238000003754 machining Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Earth Drilling (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
A steel pipe spin-expanding system and a steel pipe spin-expanding machine belong to the technical field of steel pipe production equipment. The method is characterized in that: the novel profiling machine comprises a main transmission system, wherein the main transmission system comprises a rotatable disc (1), an inner die device is arranged on the disc (1), the inner die device comprises a plurality of profiling rollers (4), each profiling roller (4) is fixed on a profiling roller base (3), the profiling roller bases (3) are arranged on the disc (1) in a sliding mode, and the profiling roller bases (3) can move along the disc (1) in the radial direction under the driving of a profiling roller oil cylinder (37). The steel pipe rotary expansion system carries out rotary expansion on the pipeline joint through the profiling roller, so that the processing precision of the pipeline joint is greatly improved, and the butt joint of the steel pipes is facilitated; the steel pipe spin-expansion system adopts the electric pushing device to push the ejector rod to axially move, so that the problem that the high temperature of hydraulic oil is difficult to control can be avoided; the steel pipe lifting system of the rotary expanding machine pushes the steel pipe to lift, so that the steel pipe is aligned with the disc of the steel pipe rotary expanding system, and the processing is convenient.
Description
Technical Field
A steel pipe spin-expanding system and a steel pipe spin-expanding machine belong to the technical field of steel pipe production equipment.
Background
The integral rapid socket joint steel pipe is a novel joint mode, and compared with the traditional welding and flange type connection, the integral rapid socket joint steel pipe has the characteristics of low cost, convenience in construction, high connection efficiency, flexibility and the like. So that it has been rapidly developed in domestic water supply and drainage and gas pipelines. Especially in complicated environmental conditions such as underground pipe gallery, colliery tunnel, because reasons such as space is narrow and small, unable fire etc. can't move, its advantage obtains further showing. However, the traditional mode is difficult to process and manufacture, the manual production cost is high, and the efficiency is low, so that the development of the rotary expander for producing the integrated quick socket joint steel pipe is particularly important.
Disclosure of Invention
The invention aims to solve the technical problems that: overcomes the defects of the prior art and provides a steel pipe rotary expanding system and a steel pipe rotary expanding machine which are simple and convenient to process and manufacture, low in production cost, high in production efficiency and high in automation degree.
The technical scheme adopted for solving the technical problems is as follows: this steel pipe expands system soon, its characterized in that: the main transmission system comprises a rotatable disc, an inner die device is arranged on the disc, the inner die device comprises a plurality of profiling rollers, each profiling roller is fixed on a profiling roller base, the profiling roller bases are slidably arranged on the disc, and the profiling roller bases can radially move along the disc under the driving of profiling roller cylinders.
Preferably, the device further comprises a fixed base, wherein a movable base is arranged on the fixed base in a sliding manner, and a main transmission system is arranged on the movable base in a sliding manner.
Preferably, the movable base is driven by a transverse moving system to slide along the fixed base, the transverse moving system comprises a transverse moving motor speed reducer unit, the transverse moving motor speed reducer unit drives a gear through a coupling, and a rack matched with the gear is fixed at the bottom of the movable base.
Preferably, the movable base is also fixed with an outer mold device, and the outer mold device comprises a lower mold and an upper mold.
Preferably, the lower die is fixed on the lower die holder, the lower die holder is fixed on the movable base, the upper die is fixed on the upper die holder, and the upper die holder and the lower die holder are connected together in a sliding manner through guide posts and are driven by a die cylinder to realize up-and-down opening and closing movement.
Preferably, the multifunctional bedside table also comprises a bedside table, the bedside table is arranged on the movable base in a sliding manner, and the disc is arranged on the bedside table and driven by the profiling motor.
Preferably, the main transmission system is driven by the working system to slide along the movable base, and the working system comprises a working motor speed reducer unit and a ball screw unit.
Preferably, the profiling roller cylinder is connected with the disc through a fixed seat and is supplied with oil through a rotary joint.
A steel pipe spin-expanding system is characterized in that: including main drive system, main drive system includes rotatable disc, is equipped with interior mould device on the disc, interior mould device include a plurality of profile modeling rollers, every profile modeling roller is fixed on a profile modeling roller base, profile modeling roller base slides and sets up on the disc, the coaxial ejector pin that is provided with in one side of disc, the ejector pin is connected with the electronic thrust unit who promotes its axial displacement, the one end of ejector pin is provided with the conical promotion portion that increases gradually from tip to middle part diameter, the promotion portion promotes the radial movement of profile modeling roller base along the disc in step, every profile modeling roller base all is connected with the spring that promotes its compress tightly the promotion portion.
Preferably, the profiling roller base is arranged between the corresponding spring and the pushing part, one end of the spring, which is far away from the corresponding profiling roller base, is provided with an adjusting screw, and the adjusting screw is in threaded connection with the disc and pushes the corresponding spring to compress the corresponding profiling roller.
Preferably, the electric pushing device comprises a profiling push rod and an adjusting motor, wherein the profiling push rod is coaxially connected with the ejector rod and pushes the ejector rod to axially move, the profiling push rod is a screw rod, and the adjusting motor is connected with a profiling nut matched with the profiling screw rod.
The utility model provides a steel pipe spin-expanding machine which characterized in that: the steel pipe rotary expanding device comprises a steel pipe lifting system and the steel pipe rotary expanding system, wherein the steel pipe lifting system is arranged on one side, close to a disc, of the steel pipe rotary expanding system and is arranged at intervals with the steel pipe rotary expanding system.
Preferably, the steel pipe lifting system comprises a lifting base, a lifting oil cylinder is arranged on the lifting base, and a V-shaped roller is fixed at the top of the lifting oil cylinder.
Preferably, the steel pipe spin-expansion system is two sets and is arranged symmetrically left and right.
Compared with the prior art, the invention has the following beneficial effects:
1. The steel pipe spin-expanding system performs spin-expanding on the pipeline joint through the profiling roller, so that the machining precision of the pipeline joint is greatly improved, and when the steel pipe is rapidly plugged and butted, the male head can be rapidly and smoothly inserted into the female head, so that the butt joint of the steel pipe is facilitated, and the sealing of the steel pipe joint is also avoided due to the fact that the error of the steel pipe joint greatly influences the sealing of the steel pipe joint.
2. The movable base is slidably arranged on the fixed base, and the main transmission system is slidably arranged on the movable base, so that the steel pipe is convenient to install, the profiling roller is convenient to feed, the movable base is driven to move through the transverse moving device, and the steel pipes with different lengths can be machined.
3. The movable base is driven by the transverse motor speed reducer unit, and realizes translation through the engagement of the gear and the rack, so that the transmission is accurate, and the translation stability of the movable base is ensured.
4. The movable base is provided with a profiling die, and the machining of steel pipes with different pipe diameters can be realized by adjusting the position of the profiling roller on the disc and replacing the upper die and the lower die of the outer die devices with different pipe diameters; the profiling roller of the inner die device and the upper die and the lower die of the outer die device are replaced, so that the processing of different types of joint shapes can be realized, and the profiling cylinder pushes the upper die to move, so that the die opening and the die closing of the upper die and the lower die are realized, and the use is convenient.
5. The guide post can guide the lifting of the upper die holder, so that the upper die and the lower die are aligned, and damage to the steel pipe subjected to machining is avoided.
6. The disc is driven by the profiling motor, so that the rotation of the disc is realized, the profiling roller and the steel pipe relatively rotate, and the spin-expansion of the end of the steel pipe is realized.
7. The working feed motor speed reducer unit drives the main transmission system to slide along the movable base through the ball screw group, so that the transmission is accurate, and the feeding of the disc and the profiling roller is facilitated.
8. The profiling roller cylinder realizes oil supply through the rotary joint, and the oil supply is convenient.
9. The steel pipe spin-expanding system adopts the electric pushing device to push the ejector rod to axially move, and the pushing part at the end part of the ejector rod is used for pushing the profiling roller base to radially move along the disc, so that the problem that hydraulic oil is difficult to control at high temperature can be avoided, and the spring is used for pushing the profiling roller base to press the pushing part, so that the movement of the profiling roller base is more accurate.
10. The adjusting screw can adjust the pressure of the spring, and errors caused by aging of the spring are avoided.
11. The adjusting motor is matched with the profiling push rod and the profiling nut to push the push rod to axially move, so that the transmission is more accurate, and the axial moving distance of the push rod is conveniently and accurately controlled.
12. The steel pipe lifting system of the rotary expanding machine pushes the steel pipe to lift, so that the steel pipe is aligned with the disc of the steel pipe rotary expanding system, and the processing is convenient.
13. The lifting cylinder pushes the V-shaped roller to lift and drive the steel pipe to lift, so that the steel pipe is conveniently aligned with the disc, and the profiling roller is conveniently stretched into the end part of the steel pipe.
14. The steel pipe spin-expanding system has two sets, can spin-expand the both ends of steel pipe simultaneously, and the spin-expanding at steel pipe both ends can be accomplished to once material loading, and the process speed is fast.
Drawings
Fig. 1 is a schematic front view of a steel pipe spin-expansion system.
Fig. 2 is a schematic left-hand view of the disc.
Fig. 3 is a partial enlarged view at a in fig. 2.
Fig. 4 is a schematic cross-sectional front view of a disk.
Fig. 5 is a schematic front cross-sectional view of a feed mechanism of a steel pipe spin-expansion system.
Fig. 6 is a schematic left-hand cross-sectional view of the feed mechanism of the steel pipe spin-expanding system.
Fig. 7 is a schematic left view of a translation mechanism of the steel pipe spin-expansion system.
Fig. 8 is a schematic front cross-sectional view of a conduit docking structure.
Fig. 9 is a partial enlarged view at B in fig. 8.
Fig. 10 is a schematic front view of the steel pipe spin-expansion system in example 2.
Fig. 11 is a right side view schematically showing a translation mechanism of the steel pipe spin-expanding system in example 2.
In the figure: 1. disc 2, guide plate 3, profiling roller base 4, profiling roller 5, spring 6, ejector rod 7, adjusting screw 8, profiling mold 801, upper mold 802, lower mold 9, mold cylinder 10, profiling motor 11, band-type brake 12, moving base 13, feed frame 14, feeding motor reduction gear unit 15, lifting base 16, lifting cylinder 17, V-roller 18, upper die holder 19, feed screw 20, feed nut 21, rack 22, flat rail 23, V-rail 24, traversing motor reduction gear unit 25, translating shaft 26, gear 27, translating guide rail 28, lower die holder 29, fixed base 30, guide post 31, male head 32, female head 3201, sealing groove 3202, detecting hole 33, clip 34, V-shaped seal ring 35, O-shaped seal ring 36, steel pipe 37, profiling roller cylinder 38, fixed base 39, headstock 40, gear set 41, gear base 42, traversing device base.
Detailed Description
Fig. 1 to 9 are diagrams illustrating preferred embodiments of the present invention, and the present invention is further described below with reference to fig. 1 to 11.
Example 1
The utility model provides a steel pipe expands system soon, including main drive system, main drive system includes rotatable disc 1, be equipped with interior mould device on the disc 1, interior mould device includes a plurality of profiling rollers 4, every profiling roller 4 is fixed on one profiling roller base 3, profiling roller base 3 slides and sets up on disc 1, one side of disc 1 is coaxial to be provided with ejector pin 6, ejector pin 6 is connected with the electronic thrust unit who promotes its axial displacement, one end of ejector pin 6 is provided with the conical thrust unit that increases gradually from tip to middle part diameter, thrust unit promotes the radial displacement of profiling roller base 3 along disc 1 in step, every profiling roller base 3 all is connected with the spring 5 that promotes its compress tightly thrust unit. This steel pipe revolves and expands system adopts electronic thrust unit to promote ejector pin 6 axial displacement to promote profile modeling roller base 3 along disc 1 radial movement through the thrust unit of ejector pin 6 tip, can avoid hydraulic oil high temperature to be difficult to the problem of control, spring 5 promotes profile modeling roller base 3 and compresses tightly thrust unit, guaranteed that profile modeling roller base 3's removal is more accurate, carries out the spin-expansion through profile modeling roller 4 to the pipeline joint, has improved the machining precision of pipeline joint greatly, thereby when 36 quick socket joints of steel pipe, can make male head 31 insert female head 32 in fast smooth and easy, made things convenient for the butt joint of steel pipe 36 promptly, also avoided because the great sealed that influences joint department of joint error.
The present application will be further described with reference to specific embodiments, however, it will be appreciated by those skilled in the art that the detailed description herein with reference to the accompanying drawings is for better illustration, and that the application is not necessarily limited to such embodiments, but rather is intended to cover various equivalent alternatives or modifications, as may be readily apparent to those skilled in the art.
As shown in fig. 1 to 4: at least one profiling roller 4 on the disc 1, the profiling roller 4 is slidably arranged on one side of the disc 1, the profiling roller 4 is connected with an electric pushing device for driving the profiling roller 4 to radially move towards the disc 1, and the axis of the profiling roller 4 is parallel or intersected with the axis of the disc 1. The disc 1 of the pipeline rotary expansion disc drives the profiling roller 4 to rotate around the axis of the disc 1, so that the pipeline joint can be rotary expanded, and the processing precision of the pipeline joint is greatly improved by matching with the profiling die 8 outside the pipeline, so that the male head 31 can be quickly and smoothly inserted into the female head 32 when the steel pipe 36 is quickly and spliced, namely, the butt joint of the steel pipe 36 is facilitated, and the sealing of the steel pipe joint is also avoided because the error of the steel pipe joint greatly influences.
The middle part of disc 1 is provided with the through-hole coaxially, and profile modeling roller 4 slidable mounting is in one side of disc 1, and electric pushing device sets up in the opposite side of disc 1, and ejector pin 6 coaxial setting is in the through-hole of disc 1. The power device and the ejector rod 6 are arranged on the same side of the disc 1, and the electric pushing device is connected with the ejector rod 6 and pushes the ejector rod 6 to axially move. One end of the ejector rod 6 far away from the electric pushing device is a conical pushing part with the diameter gradually reduced from the end part to the middle part, the electric pushing device pushes the ejector rod 6 to axially move, and the pushing part of the ejector rod 6 pushes the profiling roller 4 to radially move along the disc 1. Each profiling roller 4 is connected with a spring 5 for pushing the profiling roller to press the pushing part, and the profiling rollers 4 are arranged between the corresponding springs 5 and the ejector rods 6.
The electric pushing device comprises a profiling push rod and an adjusting motor, wherein the profiling push rod is arranged at one end of the ejector rod 6 far away from the profiling roller 4, the profiling push rod is coaxially connected with the ejector rod 6 and keeps synchronously moving, the profiling push rod is a lead screw, an output shaft of the adjusting motor is arranged in parallel with the profiling push rod, the output shaft of the adjusting motor is connected with a profiling nut which synchronously rotates with the adjusting motor, and the profiling nut is meshed with the profiling push rod, so that the ejector rod 6 is pushed to axially move. Compared with the pushing by adopting the oil cylinder, the hydraulic oil high temperature control device can avoid the problem that the hydraulic oil high temperature is difficult to control by adjusting the motor pushing, and the control is accurate. The electric pushing device can also be an electric screw rod and a profiling nut matched with the electric screw rod, and the profiling nut is fixedly arranged. The electric pushing device can also be an electric push rod or an oil cylinder
The profiling roller 4 can be arranged in one, and a plurality of profiling rollers can be uniformly distributed around the axis of the disc 1 at intervals, in the embodiment, two profiling rollers 4 are uniformly distributed at intervals, so that the profiling rotation and expansion force symmetry of the round tube is guaranteed, the rotation of the disc 1 can be guaranteed to be more stable, and the machining of the end part of the tube can be guaranteed to be more accurate.
The profiling roller 4 is installed on the disc 1 through the profiling roller base 3, the axis of the profiling roller 4 is parallel to the axis of the disc 1, the profiling roller base 3 is arranged on one side of the disc 1, which is far away from the electric pushing device, the profiling roller bases 3 are parallel to the disc 1, the profiling roller bases 3 are in one-to-one correspondence with the profiling rollers 4, the profiling rollers 4 are rotatably installed on one side of the corresponding profiling roller bases 3, which is far away from the disc 1, and the profiling roller bases 3 are slidably installed on the disc 1. The end of the profiling roller base 3, which is close to the axis of the disc 1, is attached to the pushing part, preferably, the end of the profiling roller base 3, which is close to the axis of the disc 1, is in an inclined shape matched with the pushing part of the ejector rod 6, and is in sliding connection with the pushing part of the ejector rod 6. The axis of the profiling roller 4 may also intersect the axis of the disc 1.
The guide plates 2 are symmetrically arranged on the discs 1 on two sides of each profiling roller base 3, the guide plates 2 are arranged along the sliding direction of the corresponding profiling roller base 3 to form profiling roller guide grooves, the profiling roller bases 3 are slidably arranged in the corresponding profiling roller guide grooves, the guide plates 2 guide the corresponding profiling roller bases 3, the corresponding profiling roller bases 3 are guaranteed to translate along the radial direction of the discs 1, the profiling rollers 4 are prevented from displacing during processing of pipeline ends, and the precision of the processed pipeline ends is prevented from being influenced.
One side of each guide plate 2 far away from the disc 1 is bent into the profiling roller guide groove, so that the corresponding profiling roller base 3 is pressed tightly, the linear translation of the profiling roller base 3 is ensured, and the machining precision is further ensured.
Each profiling roller base 3 is provided with an adjusting screw 7 at one end far away from the axis of the disc 1, the adjusting screw 7 is arranged along the radial direction of the disc 1, the adjusting screw 7 is in threaded connection with the disc 1, the spring 5 is arranged between the corresponding adjusting screw 7 and the profiling roller base 3, and the adjusting screw 7 can adjust the elasticity of the spring 5, so that the profiling roller base 3 is prevented from being separated from the ejector rod 6 due to aging of the spring 5.
The steel pipe spin-expansion system further comprises a fixed base 29, a movable base 12 is slidably arranged on the fixed base 29, a feeding frame 13 is mounted on the movable base 12, the feeding frame 13 is slidably mounted on the movable base 12, the feeding frame 13 is connected with a work feeding system for pushing the steel pipe spin-expansion system to move, the movable base 12 is slidably mounted on the fixed base 29, and the movable base 12 is connected with a transverse moving system for pushing the steel pipe spin-expansion system to translate. The profiling mold 8 is annular. The feed frame 13 is provided with a headstock 39, and the disc 1 is rotatably arranged on the headstock 39.
The disc 1 is vertically arranged, the ejector rod 6 is slidably arranged on the feeding frame 13, the disc 1 and the ejector rod 6 synchronously feed along with the feeding frame 13, the feeding frame 13 translates along the axis direction of the disc 1, and the disc 1 is connected with a profiling motor 10 for driving the disc 1 to rotate. The profiling motor 10 is arranged on the feeding frame 13, an output shaft of the profiling motor 10 is connected with the disc 1 and drives the disc 1 to rotate, and the band-type brake 11 is further arranged on the output shaft of the profiling motor 10, so that the profiling motor 10 can be assisted to stop rotating. The movable base 12 is also provided with a profiling mold 8, and the profiling mold 8 and the disc 1 are coaxially arranged. The output shaft of the profiling motor 10 drives the disc 1 to rotate through the gear set 40.
As shown in fig. 5 to 7: the work feed system comprises a work feed motor speed reducer unit 14 and a screw nut pair, wherein the work feed motor speed reducer unit 14 is arranged on the movable base 12, the work feed motor speed reducer unit 14 is arranged at one end of the movable base 12 far away from the disc 1, and the axis of an output shaft of the work feed motor speed reducer unit 14 is parallel to the axis of the disc 1. The feed screw 19 is rotatably mounted on the moving base 12, the axis of the feed screw 19 is parallel to the axis of the disc 1, the feed screw 19 is arranged at the lower side of the feed frame 13, and the output shaft of the work feed motor speed reducer unit 14 is connected with the feed screw 19 and drives the feed screw 19 to rotate. The lower side of the feed frame 13 is provided with a feed nut 20 meshed with the feed screw 19 to form a screw nut pair, the screw nut pair is preferably a ball screw group, and the feed nut 20 is fixedly connected with the feed frame 13 and drives the feed frame 13 to synchronously move.
A feed rail is installed at the upper side of the moving base 12, and a feed carriage 13 is slidably installed on the feed rail. The feeding guide rail comprises flat rails 22 and V-shaped rails 23 which are symmetrically arranged on two sides of the movable base 12, and the flat rails 22 and the V-shaped rails 23 are arranged along the direction parallel to the axis of the disc 1, so that the movement of the feeding frame 13 can be guided, the displacement between the feeding frame 13 and the movable base 12 in the direction perpendicular to the axis of the disc 1 can be avoided, and the machining precision is ensured.
The traverse system comprises a traverse motor speed reducer 24, the traverse motor speed reducer 24 is arranged on one side of a fixed base 29, and the traverse motor speed reducer 24 is arranged on a traverse device base 42. The sideslip motor speed reduction unit 24 sets up in the one side of removing the base 12, and the output shaft of sideslip motor speed reduction unit 24 sets up towards removing the base 12 level, and the axis of sideslip motor speed reduction unit 24's output shaft is perpendicular with the axis of disc 1, rotates on the unable adjustment base 29 and installs translation pivot 25, and translation pivot 25 level sets up, and the axis of translation pivot 25 is perpendicular with the axis of disc 1, and translation pivot 25 links to each other with the output shaft of sideslip motor speed reduction unit 24. A transmission shaft is arranged between the translation rotating shaft 25 and the translation motor speed reducer unit 24, one end of the transmission shaft is connected with the translation rotating shaft 25 through a universal coupling, and the other end of the transmission shaft is connected with an output shaft of the translation motor speed reducer unit 24 through the universal coupling, so that the installation difficulty of the translation motor speed reducer unit 24 is reduced.
The middle lower side of the moving base 12 is provided with a rack 21, the rack 21 is provided in a direction parallel to the axis of the disk 1, and the rack 21 is installed at the lower side of the moving base 12. The translation rotating shaft 25 is coaxially provided with a gear 26, the gear 26 rotates synchronously with the translation rotating shaft 25, and the gear 26 is arranged on the lower side of the rack 21 and meshed with the rack 21, so that the translation of the movable base 12 is realized.
The translation guide rails 27 are symmetrically arranged on two sides of the fixed base 29, and the movable base 12 is slidably mounted on the translation guide rails 27, so that the movable base 12 can be ensured to linearly move, and further the spin-expansion of the pipeline end is ensured.
The profiling mold 8 comprises an upper mold 801 and a lower mold 802, the upper mold 801 is installed on the lower side of the upper mold base 18, the lower mold 802 is installed on the upper side of the lower mold base 28, and the upper mold 801 and the lower mold 802 are encircled to form a circle. The upper die holder 18 is arranged on the upper side of the lower die holder 28, the upper die holder 18 is connected with the lower die holder 28 through guide posts 30, vertical guide posts 30 are symmetrically arranged on two sides of the lower die holder 28, guide holes are symmetrically arranged on two sides of the upper die holder 18, and the upper parts of the guide posts 30 are slidably arranged in the guide holes on the corresponding sides, so that die assembly accuracy is guaranteed. A die cylinder 9 is arranged between the upper die holder 18 and the lower die holder 28, the die cylinders 9 are symmetrically arranged on two sides of the lower die holder 28, the die cylinders 9 are arranged on the lower die holder 28, the die cylinders 9 are vertically arranged, and a piston rod of each die cylinder 9 is connected with one side corresponding to the upper die holder 18, so that the upper die holder 18 is pushed to lift, and the die assembly of the profiling die 8 is realized. The upper die 801 and the lower die 802 are surrounded in a circular shape coaxially arranged with the disk 1.
The invention also provides a rotary expanding machine which comprises the steel pipe lifting system and the steel pipe rotary expanding system, wherein the steel pipe lifting system is arranged at one side of the steel pipe rotary expanding system, which is close to the disc 1, and is arranged at intervals with the steel pipe rotary expanding system. The steel pipe lifting system of the rotary expanding machine pushes the steel pipe to lift, so that the steel pipe is aligned with the disc of the steel pipe rotary expanding system, and the processing is convenient.
The steel pipe lifting system is arranged on one side, far away from the disc 1, of the profiling mold 8, two steel pipe rotary expansion systems are arranged at intervals, the steel pipe lifting system is arranged between the two steel pipe rotary expansion systems, at least one steel pipe lifting system is arranged, and the profiling mold 8 of the steel pipe rotary expansion system is arranged close to the steel pipe lifting system. The steel pipe lifting system of the rotary expanding machine can support the steel pipe 36, is matched with the steel pipe rotary expanding systems on two sides of the steel pipe lifting system, simultaneously carries out rotary expansion on two ends of the steel pipe 36, has high processing precision on the steel pipe 36, can smoothly insert the male head 31 into the female head 32 when the steel pipes are in butt joint, and has the advantages of low production cost, high production efficiency, simplicity and convenience in processing and manufacturing, wide applicability and the like.
The steel pipe spin-expanding systems and the steel pipe lifting systems are in one-to-one correspondence, the steel pipe spin-expanding systems are symmetrically arranged, the steel pipe lifting systems are arranged between the two steel pipe spin-expanding systems, the disc 1 of the steel pipe spin-expanding system is close to the corresponding steel pipe lifting system, and the steel pipe lifting system is close to the corresponding steel pipe spin-expanding system.
The steel pipe lifting system comprises a lifting base 15, a lifting oil cylinder 16 is mounted on the lifting base 15, a V-shaped roller 17 is mounted on the top of the lifting oil cylinder 16, the lifting oil cylinder 16 is vertically arranged on the lifting base 15, a piston rod of the lifting oil cylinder 16 is arranged upwards, the V-shaped roller 17 is arranged on the upper side of the lifting oil cylinder 16, the V-shaped roller 17 is mounted on the piston rod of the lifting oil cylinder 16, and a pipeline to be processed is supported through the V-shaped roller 17.
The rotary expanding machine is mainly used for processing the end heads of the steel pipes, and the working method of the rotary expanding machine is as follows: firstly, a steel pipe to be processed is placed on V-shaped rollers 17 of two steel pipe lifting systems, then the height of the steel pipe is adjusted through a lifting oil cylinder 16, a traversing system drives a moving base 12 to move towards the direction close to the end of a pipeline, two profiling molds 8 clamp one end corresponding to the steel pipe respectively, a work feeding system drives a disc 1 to move towards the end close to the steel pipe, a profiling roller 4 stretches into the end corresponding to the pipeline, an electric pushing device pushes a push rod 6 to move inwards the steel pipe, the profiling roller 4 presses the inner wall of the end of the steel pipe, then a profiling motor 10 drives the disc 1 to rotate, the profiling roller 4 is matched with the profiling mold 8 on the corresponding side to process the steel pipe 36, and the processing precision is high.
As shown in fig. 8 to 9: through the above-mentioned pipeline spiral-expansion system processing male head 31 and female head 32 on the pipeline, male head 31 and female head 32 link to each other with corresponding pipeline respectively, and male head 31 and female head 32's diameter is greater than the diameter of corresponding pipeline respectively, and male head 31 stretches into female head 32 in, encircles female head 32 inner wall interval and is provided with a plurality of seal grooves 3201, all is provided with the sealing washer in every seal groove 3201, and the sealing washer in at least one seal groove 3201 is V-arrangement sealing washer 34. The diameter of the female head 32 and the male head 31 of the pipeline butt joint structure is larger than that of a corresponding pipeline, butt joint of the pipeline is facilitated, the pipeline conveying speed cannot be hindered after butt joint, in addition, the female head 32 and the male head 31 can be conveniently fastened, the male head 31 and the female head 32 can be tightly pressed by virtue of the compaction force of soil when buried underground, the male head 31 and the female head 32 are prevented from being separated under the action of pressure, leakage is avoided, a plurality of sealing rings are arranged, multi-layer sealing can be formed, leakage is avoided, at least one sealing ring is a V-shaped sealing ring 34, deformation can be generated on the V-shaped sealing ring 34 when the pipeline is pressurized, the sealing effect is good, leakage cannot occur, and the service life is prolonged.
One end of the male head 31 is integrally connected with a corresponding pipeline, the other end is an open end of the male head 31, and the male head 31 and the corresponding pipeline are coaxially arranged. One end of the female head 32 is integrally arranged with the corresponding pipeline, the other end is an open end of the female head 32, and the female head 32 is coaxially arranged with the corresponding pipeline. The open end of the male head 31 extends into the female head 32 from the open end of the female head 32 and is coaxially disposed with the female head 32.
The male joint part is arranged between the male 31 and the corresponding pipeline, the male 31 and the corresponding pipeline are in smooth transition through the male joint part, the male joint part is in a conical shape with gradually reduced diameter along the direction close to the corresponding pipeline, stress concentration is avoided, and the connection strength of the male 31 and the corresponding pipeline is improved. Be provided with female butt joint portion between female head 32 and the pipeline that corresponds, through female butt joint portion smooth transition between female head 32 and the pipeline that corresponds, female head butt joint portion is the toper that reduces gradually along the direction diameter that is close to the pipeline that corresponds, avoids appearing stress concentration, has improved female head 32 and the joint strength of corresponding pipeline.
The open end of the male head 31 is provided with a necking part with the diameter smaller than the diameter of the middle part, the necking part is a conical part with the diameter gradually reduced along the direction from the middle part of the male head 31 to the end part, the open end of the female head 32 is provided with a flaring part with the diameter larger than the diameter of the middle part, and the flaring part is a conical part with the diameter gradually increased along the direction from the middle part of the female head 32 to the end part, so that the male head 31 can be conveniently stretched into the female head 32 during butt joint, and the butt joint is convenient. And the necking part of the male head 31 is matched with the female head butt joint part of the female head 32, so that the male head 31 can be limited, and the butt joint of the male head 31 and the female head 32 is further facilitated.
A plurality of sealing grooves 3201 are arranged around the inner wall of the female head 32 at intervals, and sealing rings are arranged in each sealing groove 3201, so that the female head 32 and the male head 31 are sealed to form a multi-layer seal, and leakage is avoided. The outer wall surrounding the female head 32 is provided with a sealing part with an outwards protruded middle part, the sealing parts are in one-to-one correspondence with the sealing grooves 3201, and the sealing grooves 3201 are arranged on the inner sides of the corresponding sealing parts, so that the influence on the strength of the female head 32 is avoided.
In the present embodiment, two seal grooves 3201 are provided at intervals along the axial direction of the female head 32, and a seal ring is provided in each seal groove 3201. Be provided with V-arrangement sealing washer 34 in the seal groove 3201 that is close to the open end of public head 31, be provided with O-ring seal 35 in another seal groove 3201, when the pressure medium is poured into in the pipeline, V-arrangement sealing washer 34 can take place deformation under the pressure effect to laminate more closely with public head 31 and female head 32, and the pressure is bigger, and the deformation of V-arrangement sealing washer 34 is bigger, and the sealing effect is better, thereby avoids public head 31 and female head 32 to take place to leak under the pressure effect, O-ring seal 35 and V-arrangement sealing washer 34 form double-deck seal, has further improved sealing effect.
Be provided with detection hole 3202 on female head 32 between two seal grooves 3201, detection hole 3202 runs through the pipe wall setting of female head 32, and after public head 31 and female head 32 butt joint are accomplished, pour into high-pressure water into between female head 32 and the public head 31 through detection hole 3202, the leakproofness of two sealing washer that detects that can be convenient, convenient operation during the detection, and detection effect is good, moreover the convenience is to doing further maintenance between public head 31 and the female head 32.
In this embodiment, the male head 31 and the female head 32 are mainly used for being exposed, so that a clamp 33 is arranged between the female head 32 and the male head 31, two ends of the clamp 33 are tapered with gradually reduced diameters along the direction from the middle part to the end part, and two ends of the clamp 33 are respectively matched with the male head butt joint part and the female head butt joint part, so that the male head 31 and the female head 32 are clamped and fixed, the male head 31 and the female head 32 are ensured to be firmly butted, and the male head 31 and the female head 32 are prevented from being separated when high-pressure medium is fed into a pipeline.
The clip 33 is divided into two sections in the circumferential direction, and the clips 33 at both ends are detachably connected by bolts, thereby facilitating the setting of the clip 33.
Example 2
As shown in fig. 10 to 11: the fixed base 29 is provided with the movable base 12 in a sliding manner, the movable base 12 is driven by a traversing system to slide along the fixed base 29, the traversing system comprises a traversing motor speed reducer unit 24, the traversing motor speed reducer unit 24 is fixed on a traversing device base 42, the traversing motor speed reducer unit 24 drives a gear 26 on a gear base 41 through a coupling, and a rack 21 matched with the gear 26 is fixed at the bottom of the movable base 12. A main transmission system is slidably arranged on the movable base 12, and is driven by a work feed system to slide along the movable base 12, wherein the work feed system comprises a work feed motor speed reducer unit 14 and a ball screw unit. The main transmission system comprises a headstock 39, the headstock 39 is slidably arranged on the movable base 12, the disc 1 is mounted on the headstock 39 and driven by a profiling motor 10, and the profiling motor 10 is provided with a band-type brake 11. The disc 1 is provided with an inner die device, the inner die device comprises a plurality of profiling rollers 4, each profiling roller 4 is fixed on one profiling roller base 3, the profiling roller bases 3 are slidably arranged on the disc 1, the profiling roller bases 3 can radially move along the disc 1 under the driving of profiling roller cylinders 37, and the profiling roller cylinders 37 are connected with the disc 1 through fixing seats 38 and realize oil supply through rotary joints; the movable base 12 is also fixed with an outer die device, the outer die device comprises a lower die 802 and an upper die 801, the lower die 802 is fixed on a lower die holder 28, the lower die holder 28 is fixed on the movable base 12, the upper die 801 is fixed on an upper die holder 18, the upper die holder 18 and the lower die holder 28 are connected together in a sliding manner through a guide post 30, and the upper die holder and the lower die holder are driven by a die cylinder 9 to realize up-down opening and closing movement.
When the device works, a steel pipe 36 is placed on a V-shaped roller 17 of a lifting system, the V-shaped roller 17 lifts the steel pipe 36 to the center position of a rotary expanding machine (namely the center position of a disc 1) under the drive of a lifting oil cylinder 16, and a lower die 802 and an upper die 801 of an outer die device are opened under the action of a die oil cylinder 9; the traversing motor speed reducer 24 acts, the movable base 12 is driven to advance by the meshing of the gear 26 and the rack 21, so that the steel pipe 36 on the V-shaped roller 17 enters between two sets of lower dies 802 and upper dies 801, the lifting cylinder 16 falls down, and the lower dies 802 and the upper dies 801 close and clamp one end of the steel pipe 36 under the action of the die cylinder 9; the working motor speed reducer unit 14 drives the main transmission system to advance, so that the profiling roller 4 of the inner die device is inserted into the end of the steel pipe 36, the profiling motor 10 is started, the profiling roller is input into the headstock 39 through the gear set 40 to reduce speed and output to the disc 1, the rotary motion of the disc 1 is realized, the disc 1 rotates to drive the inner die device to rotate, and the profiling roller 4 is driven by the profiling roller oil cylinder 37 to radially expand the steel pipe 36 and realize rotary expansion processing under the cooperation of the outer die device; after the spin-expansion processing is finished, the main transmission system retreats to drive the profiling roller 4 of the inner die device to retreat, the lifting oil cylinder 16 is lifted to lift the steel pipe 36, the lower die 802 and the upper die 801 are opened, the moving base 12 retreats, the lifting oil cylinder 16 falls back, the steel pipe 36 on the V-shaped roller 17 falls down, and the processed steel pipe 36 is removed.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (9)
1. A steel pipe spin-expanding system is characterized in that: the automatic forming machine comprises a main transmission system, wherein the main transmission system comprises a rotatable disc (1), an inner die device is arranged on the disc (1), the inner die device comprises a plurality of forming rollers (4), each forming roller (4) is fixed on a forming roller base (3), and the forming roller bases (3) are arranged on the disc (1) in a sliding manner;
One side of the disc (1) is coaxially provided with a push rod (6), the push rod (6) is connected with an electric pushing device for pushing the push rod to axially move, one end of the push rod (6) is provided with a conical pushing part with gradually increased diameter from the end part to the middle part, the pushing part pushes the profiling roller bases (3) to synchronously move along the radial direction of the disc (1), and each profiling roller base (3) is connected with a spring (5) for pushing the profiling roller bases to compress the pushing part;
The profiling roller base (3) is arranged between the corresponding spring (5) and the pushing part, one end of the spring (5) away from the corresponding profiling roller base (3) is provided with an adjusting screw (7), and the adjusting screw (7) is in threaded connection with the disc (1) and pushes the corresponding spring (5) to press the corresponding profiling roller (4);
the device also comprises a fixed base (29), wherein a movable base (12) is arranged on the fixed base (29) in a sliding manner, and a main transmission system is arranged on the movable base (12) in a sliding manner;
An outer mold device is also fixed on the movable base (12), and comprises a lower mold (802) and an upper mold (801);
The lower die (802) is fixed on the lower die holder (28), the lower die holder (28) is fixed on the movable base (12), the upper die (801) is fixed on the upper die holder (18), and the upper die holder (18) and the lower die holder (28) are connected together in a sliding manner through the guide post (30) and driven by the die oil cylinder (9) to realize up-and-down opening and closing movement.
2. The steel pipe spin-expanding system of claim 1, wherein: the movable base (12) is driven by a transverse moving system to slide along the fixed base (29), the transverse moving system comprises a transverse moving motor speed reducer unit (24), the transverse moving motor speed reducer unit (24) drives a gear (26) through a coupler, and a rack (21) matched with the gear (26) is fixed at the bottom of the movable base (12).
3. The steel pipe spin-expanding system of claim 1, wherein: the multifunctional bedside table also comprises a bedside table (39), the bedside table (39) is arranged on the movable base (12) in a sliding mode, and the disc (1) is arranged on the bedside table (39) and driven by the profiling motor (10).
4. The steel pipe spin-expanding system of claim 1, wherein: the main transmission system is driven by a work feed system to slide along the movable base (12), and the work feed system comprises a work feed motor speed reducer unit (14) and a ball screw group.
5. The steel pipe spin-expanding system of claim 1, wherein: the profiling roller cylinder (37) is connected with the disc (1) through a fixed seat (38) and supplies oil through a rotary joint.
6. The steel pipe spin-expanding system of claim 1, wherein: the electric pushing device comprises a profiling push rod and an adjusting motor, wherein the profiling push rod is coaxially connected with the ejector rod (6) and pushes the ejector rod to axially move, the profiling push rod is a screw rod, and the adjusting motor is connected with a profiling nut matched with the profiling screw rod.
7. The utility model provides a steel pipe spin-expanding machine which characterized in that: the steel pipe rotary expansion device comprises a steel pipe lifting system and the steel pipe rotary expansion system according to any one of claims 1-6, wherein the steel pipe lifting system is arranged on one side of the steel pipe rotary expansion system, which is close to the disc (1), and is arranged at intervals with the steel pipe rotary expansion system.
8. A steel pipe rotary expander according to claim 7 and wherein: the steel pipe lifting system comprises a lifting base (15), a lifting oil cylinder (16) is arranged on the lifting base (15), and a V-shaped roller (17) is fixed at the top of the lifting oil cylinder (16).
9. A steel pipe rotary expander according to claim 7 and wherein: the steel pipe spin-expansion systems are arranged in two sets and are symmetrically arranged left and right.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810674705.XA CN108941244A (en) | 2018-06-27 | 2018-06-27 | The quick bell-spigot joint steel pipe of integral type revolves expansion machine |
| CN201810674705X | 2018-06-27 |
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| CN110355232A CN110355232A (en) | 2019-10-22 |
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| CN201810674705.XA Pending CN108941244A (en) | 2018-06-27 | 2018-06-27 | The quick bell-spigot joint steel pipe of integral type revolves expansion machine |
| CN201910318090.1A Active CN110355232B (en) | 2018-06-27 | 2019-04-19 | Steel pipe spin-expanding system and steel pipe spin-expanding machine |
| CN201920538760.6U Active CN210131934U (en) | 2018-06-27 | 2019-04-19 | Steel pipe expands system and steel pipe expands machine soon |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920538760.6U Active CN210131934U (en) | 2018-06-27 | 2019-04-19 | Steel pipe expands system and steel pipe expands machine soon |
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| CN108941244A (en) * | 2018-06-27 | 2018-12-07 | 山东金诚联创管业股份有限公司 | The quick bell-spigot joint steel pipe of integral type revolves expansion machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2561532Y (en) * | 2002-05-13 | 2003-07-23 | 天水锻压机床厂 | Steel pipe end expanding machine |
| CN101028640A (en) * | 2006-03-01 | 2007-09-05 | 速技能机械有限公司 | Tube expanding device |
| CN210131934U (en) * | 2018-06-27 | 2020-03-10 | 山东金诚联创管业股份有限公司 | Steel pipe expands system and steel pipe expands machine soon |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10337778A (en) * | 1997-06-06 | 1998-12-22 | Mitsubishi Cable Ind Ltd | Production of shrinkable tube and diameter expanding device for use therefor |
| JP2003342694A (en) * | 2002-05-23 | 2003-12-03 | Jfe Steel Kk | Ferritic stainless steel excellent in spinning workability and used for diameter-enlarged member of gas exhaust system |
| JP2004283847A (en) * | 2003-03-20 | 2004-10-14 | Jfe Steel Kk | Apparatus for expanding steel pipe and method for manufacturing steel pipe using it |
| CN101314174A (en) * | 2007-06-02 | 2008-12-03 | 付朋 | Intermediate frequency induction heating pipe-expanding 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 |
| CN105290242B (en) * | 2015-11-03 | 2023-08-25 | 江苏双友智能装备科技股份有限公司 | Full-length expanding unit for medium-diameter submerged-arc welded pipe |
-
2018
- 2018-06-27 CN CN201810674705.XA patent/CN108941244A/en active Pending
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2019
- 2019-04-19 CN CN201910318090.1A patent/CN110355232B/en active Active
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2561532Y (en) * | 2002-05-13 | 2003-07-23 | 天水锻压机床厂 | Steel pipe end expanding machine |
| CN101028640A (en) * | 2006-03-01 | 2007-09-05 | 速技能机械有限公司 | Tube expanding device |
| CN210131934U (en) * | 2018-06-27 | 2020-03-10 | 山东金诚联创管业股份有限公司 | Steel pipe expands system and steel pipe expands machine soon |
Also Published As
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| CN108941244A (en) | 2018-12-07 |
| CN110355232A (en) | 2019-10-22 |
| CN210131934U (en) | 2020-03-10 |
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