CN115625399A - Large-diameter elbow beveling machine - Google Patents
Large-diameter elbow beveling machine Download PDFInfo
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- CN115625399A CN115625399A CN202211651546.4A CN202211651546A CN115625399A CN 115625399 A CN115625399 A CN 115625399A CN 202211651546 A CN202211651546 A CN 202211651546A CN 115625399 A CN115625399 A CN 115625399A
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- 238000005520 cutting process Methods 0.000 claims abstract description 63
- 230000007246 mechanism Effects 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 12
- 230000009467 reduction Effects 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 claims description 4
- 239000012809 cooling fluid Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 6
- 239000004429 Calibre Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 238000003754 machining Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 229910001651 emery Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/10—Auxiliary devices, e.g. for guiding or supporting the torch
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- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to a large-caliber elbow beveling machine which comprises a base, a cutting torch clamping device, an elbow clamping device and an elbow positioning device, wherein the cutting torch clamping device, the elbow clamping device and the elbow positioning device are arranged on the base. The cutting torch clamping device is provided with a cutting torch, and the cutting torch clamping device can adjust the position and the angle of the cutting torch. The elbow positioning device can ensure that the port to be processed of the large-caliber elbow is determined on a horizontal plane, and can ensure that the circle center of the port to be processed is determined on the rotation axis of the rotation platform of the elbow clamping device through a plurality of horizontal positioning clamping components arranged in a circular array, and the positioning device can realize the horizontal positioning and centering of the port to be processed; the elbow clamping device adopted in the beveling machine realizes the clamping and fixing of the elbow by utilizing the combined action of the four clamping plates, namely the front clamping plate, the rear clamping plate, the left clamping plate and the right clamping plate, can be suitable for large-diameter elbows of different specifications, and is high in adaptability and stability.
Description
Technical Field
The invention relates to a local heating cutting device, in particular to a large-caliber elbow beveling machine.
Background
A large bore elbow generally refers to an elbow having a bore above DN 600. The large-caliber elbow can be divided into a 45-degree large-caliber elbow, a 60-degree large-caliber elbow, a 90-degree large-caliber elbow and the like according to angles, and the wall thickness is usually 10-35mm. In the prior art, a large-caliber butt-welded elbow usually adopts an artificial groove at present. The end face of the artificial groove is uneven, and the deviation of the groove angle is not easy to control is large. The subsequent correction work is increased, and the working efficiency of the groove is lower.
Heavy-calibre elbow beveling machine among the prior art, be CN 216066729U's utility model patent if the publication number, this beveling machine is through placing the heavy-calibre elbow anterior in circular standing groove, start first pneumatic cylinder, the output extension of first pneumatic cylinder, the push pedal moves down, start step motor, step motor drives cantilever crane clockwise, the heavy-calibre elbow removes from circular standing groove, the one end of heavy-calibre elbow gets into to the annular groove emery wheel in from annular groove emery wheel front portion, start driving motor, driving motor drives gear and rotates, after tooth transmission, annular groove rotates, carry out the groove to the heavy-calibre elbow one end and polish and handle. The utility model discloses a flame heat cutting sloping mouth head mechanism device as disclosed in the utility model patent with publication number CN214518092U, this flame heat cutting sloping mouth head mechanism device can cut the curve orbit figure of arbitrary groove shape on the plane in the effective range and on the pipe, and full-automatic cooperation system software control need not artifical dry precut angle process, etc..
The elbow beveling machine, the flame cutting beveling device and the like in the prior art are difficult to fix and align large-diameter elbows, and are not ideal enough especially for fixing and aligning large-diameter elbows with different sizes and different angles. Deviation of the bevel can occur if the axis of the port at which the bend is being machined is not coaxial with the axis of the rotating system.
Disclosure of Invention
The invention aims to solve the technical problem of providing a large-caliber elbow beveling machine which can fix and find large-caliber elbows with different sizes and different angles.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the utility model provides a large-diameter elbow beveling machine which characterized in that, it includes:
a base;
the cutting torch clamping device is arranged on the base, a cutting torch is arranged on the cutting torch clamping device, and the cutting torch clamping device can enable the cutting torch to adjust the position and the angle;
the elbow clamping device comprises a rotary platform which is arranged on a base and can rotate horizontally, and a front clamping plate, a rear clamping plate and two side clamping plates which are used for clamping the elbow from front, back, left and right are arranged on the rotary platform;
elbow positioner, it is including fixed setting up portal frame and locating plate on the base, the portal frame middle part is provided with the drive of vertical lift mechanism locating plate vertical lift, the locating plate level sets up, and the lower terminal surface circular array of locating plate is provided with the flexible clamping part of at least three level, and the centre of a circle of the flexible clamping part place of at least three level is located on rotary platform's the rotation axis, the port butt of treating of elbow the locating plate makes it treat that the processing port is in horizontal position, at least three the flexible clamping part of level is synchronous flexible for press from both sides tightly to treat the processing port and make this the centre of a circle of treating the processing port confirm on rotary platform's the rotation axis.
As an embodiment of the present invention, the front clamping plate and the rear clamping plate may move horizontally back and forth on the rotating platform, the two side clamping plates are symmetrically disposed and may move horizontally left and right, the front clamping plate is used to limit the lower end of the elbow, the rear clamping plate is used to limit the outer arc surface of the elbow, and the two side clamping plates are used to limit the left and right sides of the elbow.
As an embodiment of the present invention, a front linear module and a rear linear module are disposed on the rotary platform, the front clamping plate is driven by the front linear module, and the rear clamping plate is driven by the rear linear module.
In one embodiment of the present invention, a rectangular installation groove extending in the left-right direction is formed in the rotary platform, a side clamping plate driving mechanism is arranged in the installation groove, and the side clamping plate driving mechanism drives the two side clamping plates to synchronously and reversely move horizontally.
As an implementation mode of the invention, the rear clamping plate comprises a cross beam and two small upright posts fixedly arranged in the middle of the cross beam, and the two small upright posts are used for abutting against the outer side cambered surface of an elbow.
In one embodiment of the present invention, the upper portion of the small upright is provided with an extension plate extending toward the elbow.
As an implementation mode of the invention, the horizontal telescopic clamping component is a hydraulic cylinder, a pressure head is fixedly arranged at the front end of a telescopic rod of the hydraulic cylinder, and an anti-skidding tooth is arranged on one surface of the pressure head, which is in contact with an elbow; and a hydraulic pump for driving the hydraulic cylinder is arranged on the portal frame.
As an embodiment of the present invention, at least three contact sensing components are distributed in a circular array on the lower end surface of the positioning plate, and when the at least three contact sensing components are triggered simultaneously, the hydraulic cylinders are synchronously started.
As an embodiment of the present invention, a top support plate is fixedly disposed in the middle of the portal frame, the vertical lifting mechanism for driving the positioning plate to vertically lift includes a fourth speed reduction motor fixedly disposed on the top support plate, a fixed cylinder, a screw nut disposed in the fixed cylinder through a bearing, and a second screw vertically disposed, the bottom end of the second screw is fixedly connected to the positioning plate, the second screw is matched with the screw nut, the screw nut is driven by the fourth speed reduction motor, and a plurality of guide rods are disposed between the positioning plate and the top support plate.
As an embodiment of the invention, the cutting torch clamping device is further provided with a cooling component, the cooling component is positioned on one side of the downstream of the cutting torch, the cooling component comprises a cover body with an inverted U-shaped cross section, the cover body is used for being buckled on a port of an elbow, a plurality of guide wheels are arranged on the inner side wall of the cover body, the top of the cover body is provided with a connecting pipe head, and the connecting pipe head is used for being connected with cooling fluid.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the large-caliber elbow beveling machine provided by the invention has the advantages that the cutting torch is fixed through the cutting torch clamping device, the position of the cutting torch can be flexibly adjusted to adapt to elbows of different specifications, the port to be machined of the large-caliber elbow can be determined on the horizontal plane through the elbow positioning device, the circle center of the port to be machined can be determined on the rotating axis of the rotating platform of the elbow clamping device through the horizontal positioning clamping components arranged in a plurality of circular arrays, and the positioning device can realize horizontal positioning and centering of the port to be machined; the elbow clamping device adopted in the beveling machine realizes the clamping and fixing of the elbow by utilizing the combined action of the four clamping plates, namely the front clamping plate, the rear clamping plate, the left clamping plate and the right clamping plate, can be suitable for large-diameter elbows of different specifications, and is high in adaptability and stability. In the process of beveling, the elbow clamping device drives the elbow to rotate, and the cutting torch cuts the port to be processed to realize the beveling operation on the elbow.
The beveling machine provided by the invention is used for beveling the large-diameter elbow, and has the advantages of high efficiency, good stability, wide application range, stable bevel quality and the like.
Drawings
Fig. 1 is a front view of the overall structure of the present invention.
Fig. 2 is a schematic top view of the overall structure of the present invention.
Fig. 3 is a schematic front view of the positioning device of the present invention.
Fig. 4 is a bottom view of the stationary plate of the present invention.
Fig. 5 is a schematic bottom view of the ram of the positioner.
Figure 6 is a side view of the elbow gripping device.
Fig. 7 is a partially enlarged schematic view of a portion a in fig. 6.
Figure 8 is a schematic bottom view of the elbow clamping device.
Fig. 9 is a schematic view of a driving structure of the side clamping plate.
FIG. 10 is a side view of the torch clamping assembly.
FIG. 11 is a schematic top view of the torch clamping assembly.
FIG. 12 is a schematic view of the structure of the securing mechanism of the torch.
Fig. 13 is a schematic structural view of the temperature reducing member.
Figure 14 is a schematic view of the elbow-holding device holding another elbow.
FIG. 15 is a schematic view of the construction of one embodiment of a side clamp plate.
Fig. 16 is a schematic structural view of another embodiment of a side clamping plate.
Wherein: 1 base, 1-1 track;
2, a cutting torch clamping device, 2-1 bases, 2-2 first speed reducing motors, 2-3 idler wheels, 2-4 upright posts, 2-5 second speed reducing motors, 2-6 guide rails, 2-7 electric push rods, 2-8 transverse plates, 2-9 third speed reducing motors, 2-10 mounting seats, 2-11 push rod mounting cylinders, 2-12 transmission boxes, 2-13 hand wheels, 2-14 racks, 2-15 first linear modules, 2-16 cutting torch fixing plates, 2-17 cutting torch clamping devices, 2-18 first lead screws and 2-19 guide wheels;
3, an elbow positioning device, 3-1 a portal frame, 3-2 a top supporting plate, 3-3 a positioning plate, 3-4 a guide rod, 3-5 a second lead screw, 3-6 a hydraulic cylinder, 3-7 a fixed cylinder, 3-8 a lead screw nut, 3-9 a fourth speed reducing motor, 3-10 a synchronous belt, 3-11 a first hydraulic pump, 3-12 a second hydraulic pump, 3-13 a contact sensing part, 3-14 a pressure head and 3-15 anti-skid teeth;
4-elbow clamping device, 4-1 front clamping plate, 4-2 front linear module, 4-3 rear clamping plate, 4-3-1 cross beam, 4-3-2 small upright post, 4-3-3 extension plate, 4-4 rear linear module, 4-5 rotary platform, 4-6 rotary device, 4-7 side clamping plate, 4-8 support body, 4-9 mounting groove, 4-10 side clamping plate nut, 4-11 side clamping plate guide rail, 4-12 connecting plate, 4-13 fifth speed reducing motor, 4-14 left screw rod, 4-15 right screw rod and 4-16 connecting groove;
5 cutting torch, 6 universal supporting rod, 7 cooling part, 7-1 cover body, 7-2 connector head, 7-3 guide wheel and 100 elbow;
m-axis of rotation, C-port to be machined.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail and fully with reference to the following embodiments.
The large-diameter elbow beveling machine introduced in the embodiment is suitable for elbows with the calibers more than DN600 (the nominal diameter is 600 mm), such as elbows with the calibers between DN600 and DN1500 or elbows between DN1500 and DN 2000. The material of the large-caliber elbow can be carbon steel, alloy steel, stainless steel and the like.
The large-caliber elbow beveling machine shown in fig. 1 and 2 comprises a base 1, a cutting torch clamping device 2, an elbow clamping device 4 and an elbow positioning device 3 which are arranged on the base 1.
The cutting torch clamping device 2 is provided with a cutting torch 5, and the cutting torch clamping device 2 can adjust the position and the angle of the cutting torch 5.
As shown in fig. 1, 2, 10 and 11, the cutting torch clamping device 2 includes a base 2-1, a column 2-4 fixedly disposed on the base 2-1, a mounting seat 2-10 sleeved on the column 2-4, a push rod mounting cylinder 2-11 fixed on the mounting seat 2-10, and an electric push rod 2-7 disposed in the push rod mounting cylinder 2-11, and the cutting torch 5 is mounted at a push rod end of the electric push rod 2-7. The bottom of the base 2-1 is provided with rollers 2-3, the rollers 2-3 are driven by a first speed reducing motor 2-2 fixedly arranged on the base 2-1, the base 1 is provided with a track 1-1 extending in a straight line, the rollers 2-3 are matched with the track 1-1, and the first speed reducing motor 2-2 drives the base 2-1 to linearly reciprocate along the track 1-1. The first speed reducing motor 2-2 adopts a servo motor.
Referring to fig. 11, a first lead screw 2-18 is arranged in the upright column 2-4, the upper end and the lower end of the first lead screw 2-18 are respectively fixed through a bearing seat (not shown), a second speed reduction motor 2-5 is fixedly arranged at the top of the upright column 2-4, the second speed reduction motor 2-5 drives the first lead screw 2-18 to rotate, a nut (not shown) is arranged on the first lead screw 2-18, the nut is fixedly connected with the mounting seat 2-10 through a slotted hole (see fig. 10) at two sides of the upright column 2-4, and a guide mechanism is arranged between the mounting seat 2-10 and the upright column 2-4.
The guide mechanism comprises guide rails 2-6 fixedly arranged at four corners of the upright post 2-4 and guide wheels 2-19 fixedly arranged at the inner side of the mounting seat 2-10 and matched with the guide rails 2-6. The second speed reducing motor 2-5 drives the first lead screw 2-18 to rotate, and the mounting base 2-10 is driven to vertically lift along the upright post 2-4 through a nut on the first lead screw 2-18. The mounting base 2-10 drives the whole electric push rod 2-7 and the cutting torch 5 mounted on the electric push rod to vertically lift.
Referring to fig. 10 and 11, the push rod installation cylinder 2-11 is fixedly arranged on one side of the installation seat 2-10, the electric push rod 2-7 is installed in the push rod installation cylinder 2-11, a rack 2-14 is fixedly arranged on the outer cylinder wall of the electric push rod 2-7, a transmission box 2-12 is fixedly arranged on the push rod installation cylinder 2-11, a gear (not shown) meshed with the rack 2-14 is arranged in the transmission box 2-12, a hand wheel 2-13 is arranged on the transmission box 2-12, and the hand wheel 2-13 is connected with the gear and used for driving the gear to rotate. The gear is driven to rotate by rotating the hand wheel 2-13, so that the electric push rod 2-7 can be driven to integrally move back and forth in the push rod mounting cylinder 2-11, and the horizontal position of the electric push rod 2-7 can be adjusted. The electric push rod 2-7 is driven to stretch by a third speed reducing motor 2-9.
Transverse plates 2-8 are fixedly arranged at the end parts of telescopic rods of the electric push rods 2-7, cutting torch fixing plates 2-16 are arranged on the transverse plates 2-8, and the cutting torch fixing plates 2-16 can horizontally move along the transverse plates 2-8 so as to adjust the horizontal positions of the cutting torch fixing plates 2-16. As shown in fig. 12, a cutting torch clamping device 2-17 is fixedly arranged on the cutting torch fixing plate 2-16, and the cutting torch 5 is fixed on the cutting torch clamping device 2-17; the cutting torch clamping devices 2-17 can be adjusted in angle in the vertical direction, so that the inclination angle of the cutting torch 5 can be adjusted.
The transverse plate 2-8 is fixedly provided with a first linear module 2-15, the cutting torch fixing plate 2-16 is fixedly arranged on the first linear module 2-15, and the cutting torch fixing plate 2-16 is driven by the first linear module 2-15 to move horizontally.
The cutting torch clamping device 2 can drive the cutting torch 5 to adjust the position front, back, left, right, up and down, and also can adjust the inclination angle, thereby realizing the flexible adjustment of the cutting torch 5 to adapt to elbows of different specifications.
As shown in fig. 1, 6 to 9, the elbow clamping device 4 comprises a rotary platform 4-5 which is arranged on the base 1 and can rotate horizontally, a turning device 4-6 is arranged between the rotary platform 4-5 and the base 1, and the turning device 4-6 drives the rotary platform 4-5 to rotate horizontally. Referring to fig. 6, the rotation axis of the rotary platform 4-5 is M.
The rotary platform 4-5 is provided with a front clamping plate 4-1, a rear clamping plate 4-3 and two side clamping plates 4-7 which are used for clamping the elbow 100 from front to back, left to right and the like; the front clamping plate 4-1 and the rear clamping plate 4-3 can horizontally move back and forth on the rotating platform 4-5, and the two side clamping plates 4-7 are arranged in bilateral symmetry and can horizontally move left and right. The front clamping plate 4-1 is used for limiting the lower end opening of the elbow 100, the rear clamping plate 4-3 is used for limiting the outer cambered surface of the elbow 100, and the two side clamping plates are used for limiting the left side and the right side of the elbow 100. The front splint 4-1 is in the shape of a transverse long strip plate, and the surface of the joint of the side splint 4-7 and the elbow 100 is a vertical plane.
The rotary platform 4-5 is provided with a front linear module 4-2 and a rear linear module 4-4, the front clamping plate 4-1 is driven by the front linear module 4-2, and the rear clamping plate 4-3 is driven by the rear linear module 4-4. The rotary platform 4-5 is provided with a groove, and the front linear module 4-2 and the rear linear module 4-4 are both arranged in the groove, so that the whole upper end surface of the whole rotary platform 4-5 is relatively flat, and the carrying and transferring operation of the elbow is facilitated.
Rectangular mounting grooves 4-9 extending in the left-right direction are formed in the rotating platform 4-5, a side clamping plate driving mechanism is arranged in the mounting grooves 4-9, and the side clamping plate driving mechanism drives the two side clamping plates 4-7 to synchronously and reversely move horizontally.
Referring to fig. 6 to 9, two horizontally extending connecting slots 4-16 are formed in parallel on a flat plate at the top of the mounting groove 4-9, the side clamping plates 4-7 are fixedly connected with the supporting body 4-8 arranged in the mounting groove 4-9 through connecting plates 4-12, and the connecting plates 4-12 are placed in the connecting slots 4-16. The left side and the right side of the supporting body 4-8 are matched with side clamping plate guide rails 4-11 fixedly arranged on the side walls of the mounting grooves 4-9, side clamping plate nuts 4-10 are fixedly arranged on the supporting body 4-8, the side clamping plate driving mechanism comprises fifth speed reducing motors 4-13, the fifth speed reducing motors 4-13 simultaneously drive left lead screws 4-14 and right lead screws 4-15, the thread directions of the left lead screws 4-14 and the right lead screws 4-15 are opposite, the left lead screws 4-14 are matched with the side clamping plate nuts 4-10 positioned on the left side, and the right lead screws 4-15 are matched with the side clamping plate nuts 4-10 positioned on the right side.
Since the front clamping plate 4-1, the rear clamping plate 4-3 and the two side clamping plates 4-7 move toward the center, i.e., toward the rotation axis of the rotating platform 4-5, M when the front clamping plate 4-1, the rear clamping plate 4-3 and the two side clamping plates 4-7 clamp and fix the elbow 100, it is necessary to avoid the mutual interference therebetween and ensure that they can be as close as possible to the rotation axis of the rotating platform 4-5 on their respective movement trajectories, which is M, so that the application range of the device can be expanded as much as possible. For this reason, the width of the side panels 4-7 can be reduced as much as possible, and interference with each other can be avoided by providing the structures of the front panel 4-1 and the rear panel 4-3, and the like.
Referring to fig. 8, 15 and 16, the outer arc of the elbow 100 is a circular arc, so that the rear clamping plate 4-3 needs to be designed specifically. Fig. 15 shows an embodiment of the back splint 4-3, which comprises a cross beam 4-3-1 and two small uprights 4-3-2 fixedly arranged in the middle of the cross beam 4-3-1, wherein the two small uprights 4-3-2 are used for abutting against the outer cambered surface of the elbow 100. The small upright columns 4-3-2 are made of angle steel, and a certain distance is arranged between the two small upright columns 4-3-2, so that the stability of clamping the elbow 100 can be enhanced.
Fig. 16 shows another embodiment of the rear cover 4-3, which is based on the rear cover 4-3 shown in fig. 15, and the upper portion of the small upright 4-3-2 is provided with an extension plate 4-3-3 extending toward the elbow 100. In the actual working process, the part of the joint of the small upright post 4-3-2 and the outer arc surface of the elbow 100 is positioned at the upper part of the small upright post 4-3-2, when the elbow with smaller size is clamped, the rear clamping plate 4-3 is required to be closer to the rotating shaft of the rotating platform 4-5, so that mutual interference of the rear clamping plate 4-3, the linear module 4-4 and the side clamping plate 4-7 can be possibly caused, and therefore the arrangement of the extension plate 4-3-3 can prevent the rear clamping plate 4-3 from excessively approaching the rotating shaft of the rotating platform 4-5, and mutual interference of the rear clamping plate 4-3 and other mechanisms is avoided.
As shown in fig. 2 to 4, the elbow positioning device 3 includes a portal frame 3-1 and a positioning plate 3-3 fixedly disposed on the base 1, a vertical lifting mechanism is disposed in the middle of the portal frame 3-1 for driving the positioning plate 3-3 to vertically lift, the positioning plate 3-3 is a horizontally disposed circular flat plate structure, a circular array of a lower end surface of the positioning plate 3-3 has at least three horizontally retractable clamping members, the circle center of a circle where the at least three horizontally retractable clamping members are located is located on the rotation axis M of the rotating platform 4-5, the port C to be processed of the elbow 100 abuts against the positioning plate 3-3 so that the port C to be processed is in a horizontal position, the at least three horizontally retractable clamping members are synchronously retracted and used for clamping the port to be processed from the inner side and determining the circle center of the port C to be processed on the rotation axis of the rotating platform 4-5, thereby achieving leveling and centering of the port C to be processed.
Because at least three horizontal telescopic clamping components can clamp the elbow 100 from the inner side, when the leveling and centering operation is completed, the vertical lifting mechanism drives the positioning plate 3-3 to vertically descend until the lowest end of the elbow 100 contacts the rotating platform 4-5, so that the lowest end of the elbow 100 is supported, and at the moment, the front clamping plate 4-1, the rear clamping plate 4-3 and the two side clamping plates 4-7 of the elbow clamping device 4 synchronously move to the elbow 100 horizontally, and the elbow 100 is clamped and fixed. When the elbow 100 is moved to the positioning plate 3-3 for leveling and centering, the lower port of the elbow 100 is aligned with the front clamping plate 4-1 in front, so that the front clamping plate 4-1 can accurately abut against the lower port of the elbow 100 after being moved, and meanwhile, the rear clamping plate 4-3 and the side clamping plates 4-7 can also accurately abut against the outer arc surface and the side surface of the elbow.
In order to better fix the elbow 100, a mounting plate (not shown) is rotatably disposed on the lower end surface of the positioning plate 3-3, the horizontal telescopic clamping component is fixedly disposed on the mounting plate, the horizontal telescopic clamping component and the mounting plate can integrally rotate by a certain angle, when the clamping plate 4-1, the rear clamping plate 4-3 and the two side clamping plates 4-7 clamp and fix the elbow, the elbow 100 can also rotate by a certain angle because the horizontal telescopic clamping component and the mounting plate can integrally rotate by a certain angle, and therefore if a certain angle deviation exists between the lower port of the elbow 100 and the front clamping plate 4-1, the elbow can also be corrected by the rotation of the elbow during the clamping process.
After the front clamping plate 4-1, the rear clamping plate 4-3 and the two side clamping plates 4-7 clamp and fix the elbow, the horizontal telescopic clamping part retracts to release the elbow, and then the vertical lifting mechanism drives the positioning plate 3-3 to vertically ascend, so that the elbow positioning device 3 is integrally separated from the elbow 100, no barrier is arranged around the port C to be machined of the elbow 100, and subsequent groove machining is facilitated.
After the processing is finished, the front clamping plate 4-1, the rear clamping plate 4-3 and the two side clamping plates 4-7 respectively move towards the direction far away from the elbow 100, and then the elbow is released. When the elbows with the same specification are processed in batches, the rear clamping plate 4-3 can be fixed, and the rear clamping plate 4-3 does not move when the elbows are clamped and released. Because the front clamping plate 4-1 is used for limiting the lower end port of the elbow, the front clamping plate 4-1 only needs a lower height, so that the elbow can be transferred from one side of the front clamping plate 4-1 when the elbow is taken and placed. The rotary platform 4-5 can rotate the front clamping plate 4-1 to the side far away from the cutting torch 5 to carry out the operation of taking and placing the elbow, thus having better operation space.
The horizontal telescopic clamping part is a hydraulic cylinder 3-6, a pressure head 3-14 is fixedly arranged at the front end of a telescopic rod of the hydraulic cylinder 3-6, as shown in figure 5, an anti-skid tooth 3-15 is arranged on one surface of the pressure head 3-14, which is in contact with the elbow 100, and the anti-skid tooth 3-15 inclines upwards to prevent the elbow 100 from falling; and a hydraulic pump for driving the hydraulic cylinder 3-6 is arranged on the portal frame 3-1.
At least three contact sensing parts 3-13 are distributed on the lower end face of the positioning plate 3-3 in a circular array, and when the at least three contact sensing parts 3-13 are triggered at the same time, the hydraulic cylinders 3-6 are started synchronously. The contact sensing parts 3-13 are arranged in a strip-shaped structure extending along the radial direction of the positioning plate 3-3, so that the contact sensing parts can be suitable for elbows with different specifications. When all of the at least three contact sensing members 3-13 are triggered, it indicates that the port C to be processed of the elbow 100 completely collides with the positioning plate 3-3, and the port C to be processed is located on a horizontal plane.
As a further improvement, the hydraulic pumps comprise a first hydraulic pump 3-11 and a second hydraulic pump 3-12, the number of the hydraulic cylinders 3-6 is 6 or 8, the 6 or 8 hydraulic cylinders 3-6 are divided into two groups, the first group of hydraulic cylinders are used for centering and driven by the first hydraulic pump 3-11, the second group of hydraulic cylinders are used for clamping, the first hydraulic pump 3-12 is used for driving, and an elastic buffer mechanism is arranged on a pressure head 3-14 of the hydraulic cylinders used for clamping. The hydraulic cylinder can stably clamp the elbow 100 by arranging the elastic buffer mechanism. In this case the contact-sensing means 3-13 described above are used to control the first set of hydraulic cylinders and to activate the second set of hydraulic cylinders after the first set of hydraulic cylinders have completed their operation.
As shown in fig. 2 and 3, a top support plate 3-2 is fixedly arranged in the middle of the portal frame 3-1, the vertical lifting mechanism for driving the positioning plate 3-3 to vertically lift comprises a fourth speed reduction motor 3-9 fixedly arranged on the top support plate 3-2, a fixed cylinder 3-7, a lead screw nut 3-8 arranged in the fixed cylinder 3-7 through a bearing, and a second lead screw 3-5 vertically arranged, the bottom end of the second lead screw 3-5 is fixedly connected with the positioning plate 3-3, the second lead screw 3-5 is matched with the lead screw nut 3-8, the lead screw nut 3-8 is driven by the fourth speed reduction motor 3-9, and a plurality of guide rods 3-4 are arranged between the positioning plate 3-3 and the top support plate 3-2. The lower end of the guide rod 3-4 is fixedly connected with the positioning plate 3-3, and a sliding sleeve matched with the positioning plate 3-3 is arranged on the supporting plate 3-2 at the top of the guide rod 3-4.
The fourth speed reducing motor 3-9 is fixed on the supporting plate 3-2, a through hole is formed in the side wall of the fixing cylinder 3-7 corresponding to the position of the lead screw nut 3-8, and the fourth speed reducing motor 3-9 drives the lead screw nut 3-8 to rotate through the synchronous belt 3-10. The screw nut 3-8 rotates to drive the second screw 3-5 to vertically move up and down, and further drive the positioning plate 3-3 to vertically move up and down.
Referring to fig. 12, in the embodiment, the cutting torch 5 is used for performing thermal cutting to perform groove machining on the elbow, and since the flame sprayed by the cutting torch 5 has a high temperature, the machined position of the elbow is melted by the high temperature to perform groove machining, the to-be-machined port of the elbow is heated rapidly during groove machining, and is still at the high temperature after machining, and the elbow is damaged by the local high temperature, and is dangerous to field operators due to the exposure of the local high temperature. For this reason, in this embodiment, a cooling component 7 is further disposed on the cutting torch clamping device 2, and the cooling component 7 is located on one side of the downstream of the cutting torch 5, that is, in the groove working process, the position to be processed is subjected to groove processing by the cutting torch 5, and then is subjected to cooling processing by the cooling component 7.
As shown in fig. 13, the temperature reducing component 7 includes a cover body 7-1 with an inverted U-shaped cross section, the cover body 7-1 is configured to be fastened to a port of the elbow 100, a plurality of guide wheels 7-3 are disposed on an inner side wall of the cover body 7-1, a connector head 7-2 is disposed at a top of the cover body 7-1, and the connector head 7-2 is configured to be connected to a cooling fluid, such as air with a relatively low temperature. The position after groove preparation immediately cools through cooling part 7, can avoid the mouth of pipe department of elbow 100 to cause heat to pile up like this, can avoid or alleviate the deformation that causes because of thermal stress, overcome the mouth of pipe irregularity, the follow-up welding operation difficult problem that elbow 100 caused after groove preparation. To avoid the effect of the low temperature air flow of the temperature reducing member 7 on the torch 5, a baffle (not shown) can be provided between the temperature reducing member 7 and the torch 5.
Fig. 6 is a schematic structural view showing the elbow clamping device 4 of this embodiment clamping and fixing a 90-degree large-diameter elbow, and fig. 14 is a schematic structural view showing the elbow clamping device 4 of this embodiment clamping and fixing a 60-degree large-diameter elbow.
In this embodiment, the cutting torch 5 can be a plasma-flame coaxial composite cutting torch, and can cut special materials such as high alloy steel and stainless steel.
The large-diameter elbow beveling machine recorded in the embodiment is used for automatically breaking and processing the elbow, and has the advantages of smooth bevel surface, high bevel processing efficiency and the like, and the bevel angle is guaranteed.
Claims (10)
1. The utility model provides a large-diameter elbow beveling machine which characterized in that, it includes:
a base (1);
the cutting torch clamping device (2) is arranged on the base (1), the cutting torch (5) is arranged on the cutting torch clamping device (2), and the cutting torch clamping device (2) can enable the position and the angle of the cutting torch (5) to be adjusted;
the elbow clamping device (4) comprises a rotary platform (4-5) which is arranged on the base (1) and can rotate horizontally, wherein a front clamping plate (4-1), a rear clamping plate (4-3) and two side clamping plates (4-7) which are used for clamping the elbow (100) from front to back, left to right and the like are arranged on the rotary platform (4-5);
the elbow positioning device (3) comprises a portal frame (3-1) and a positioning plate (3-3), wherein the portal frame (3-1) and the positioning plate (3-3) are fixedly arranged on the base (1), a vertical lifting mechanism is arranged in the middle of the portal frame (3-1) to drive the positioning plate (3-3) to vertically lift, the positioning plate (3-3) is horizontally arranged, at least three horizontal telescopic clamping components are arranged in a circular array on the lower end face of the positioning plate (3-3), the circle centers of circles where the at least three horizontal telescopic clamping components are located on the rotating axis of the rotating platform (4-5), a port to be machined of an elbow (100) is abutted against the positioning plate (3-3) to enable the port to be machined to be in a horizontal position, and the at least three horizontal telescopic clamping components are synchronously telescopic and used for clamping the port to be machined from the inner side and enabling the circle center of the port to be determined on the rotating axis of the rotating platform (4-5).
2. The large-caliber elbow beveling machine according to claim 1, wherein the front clamping plate (4-1) and the rear clamping plate (4-3) can horizontally move back and forth on the rotating platform (4-5), the two side clamping plates (4-7) are symmetrically arranged and can horizontally move left and right, the front clamping plate (4-1) is used for limiting the lower port of the elbow (100), the rear clamping plate (4-3) is used for limiting the outer cambered surface of the elbow (100), and the two side clamping plates are used for limiting the left side and the right side of the elbow (100).
3. The large-caliber elbow beveling machine according to claim 2, wherein the rotating platform (4-5) is provided with a front linear module (4-2) and a rear linear module (4-4), the front clamping plate (4-1) is driven by the front linear module (4-2), and the rear clamping plate (4-3) is driven by the rear linear module (4-4).
4. The large-caliber elbow beveling machine according to claim 3, wherein a rectangular mounting groove (4-9) extending in the left-right direction is formed in the rotating platform (4-5), a side clamping plate driving mechanism is arranged in the mounting groove (4-9), and the side clamping plate driving mechanism drives the two side clamping plates (4-7) to synchronously and reversely move horizontally.
5. The large-caliber elbow beveling machine according to claim 1, wherein the rear clamping plate (4-3) comprises a cross beam (4-3-1) and two small upright columns (4-3-2) fixedly arranged in the middle of the cross beam (4-3-1), and the two small upright columns (4-3-2) are used for abutting against the outer arc surface of the elbow (100).
6. The large-caliber elbow beveling machine according to claim 5, wherein the upper part of the small upright post (4-3-2) is provided with an extension plate (4-3-3) extending towards the elbow (100).
7. The large-caliber elbow beveling machine according to claim 1, wherein the horizontal telescopic clamping part is a hydraulic cylinder (3-6), a pressure head (3-14) is fixedly arranged at the front end of a telescopic rod of the hydraulic cylinder (3-6), and anti-skid teeth (3-15) are arranged on one surface of the pressure head (3-14) which is in contact with the elbow (100); and a hydraulic pump for driving the hydraulic cylinder (3-6) is arranged on the portal frame (3-1).
8. The large-caliber elbow beveling machine according to claim 7, wherein the lower end surface of the positioning plate (3-3) is provided with at least three contact sensing parts (3-13) in a circular array, and when the at least three contact sensing parts (3-13) are triggered simultaneously, the hydraulic cylinders (3-6) are synchronously started.
9. The large-caliber elbow beveling machine as claimed in claim 1, wherein a top support plate (3-2) is fixedly arranged in the middle of the portal frame (3-1), a vertical lifting mechanism for driving the positioning plate (3-3) to vertically lift comprises a fourth speed reduction motor (3-9) fixedly arranged on the top support plate (3-2), a fixed cylinder (3-7), a lead screw nut (3-8) arranged in the fixed cylinder (3-7) through a bearing and a second lead screw (3-5) vertically arranged, the bottom end of the second lead screw (3-5) is fixedly connected with the positioning plate (3-3), the second lead screw (3-5) is matched with the lead screw nut (3-8), the lead screw nut (3-8) is driven by the fourth speed reduction motor (3-9), and a plurality of guide rods (3-4) are arranged between the positioning plate (3-3) and the top support plate (3-2).
10. The large-caliber elbow beveling machine according to claim 1, wherein the cutting torch clamping device (2) is further provided with a cooling part (7), the cooling part (7) is positioned on the downstream side of the cutting torch (5), the cooling part (7) comprises a cover body (7-1) with an inverted U-shaped cross section, the cover body (7-1) is used for being buckled on a port of the elbow (100), the inner side wall of the cover body (7-1) is provided with a plurality of guide wheels (7-3), the top of the cover body (7-1) is provided with a connector head (7-2), and the connector head (7-2) is used for connecting cooling fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211651546.4A CN115625399B (en) | 2022-12-22 | 2022-12-22 | Large-diameter elbow beveling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211651546.4A CN115625399B (en) | 2022-12-22 | 2022-12-22 | Large-diameter elbow beveling machine |
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| Publication Number | Publication Date |
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| CN115625399A true CN115625399A (en) | 2023-01-20 |
| CN115625399B CN115625399B (en) | 2023-03-07 |
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| CN202211651546.4A Active CN115625399B (en) | 2022-12-22 | 2022-12-22 | Large-diameter elbow beveling machine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200541U (en) * | 1985-04-01 | 1986-05-21 | 核工业部第六研究所 | Metals cutting blowpipe with water compressing and air plasma arc |
| CN202539755U (en) * | 2012-02-22 | 2012-11-21 | 扬州市管件厂有限公司 | Large-diameter bend flame cutter fixture |
| CN105945386A (en) * | 2016-07-22 | 2016-09-21 | 常俊苹 | Cutting robot |
| CN206854813U (en) * | 2017-06-14 | 2018-01-09 | 山推工程机械股份有限公司 | A kind of cutting plate part finished edge positioning clamping device |
| CN108115246A (en) * | 2018-01-04 | 2018-06-05 | 上海宝业机电科技有限公司 | A kind of intersection cutting equipment and its application method |
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2022
- 2022-12-22 CN CN202211651546.4A patent/CN115625399B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200541U (en) * | 1985-04-01 | 1986-05-21 | 核工业部第六研究所 | Metals cutting blowpipe with water compressing and air plasma arc |
| CN202539755U (en) * | 2012-02-22 | 2012-11-21 | 扬州市管件厂有限公司 | Large-diameter bend flame cutter fixture |
| CN105945386A (en) * | 2016-07-22 | 2016-09-21 | 常俊苹 | Cutting robot |
| CN206854813U (en) * | 2017-06-14 | 2018-01-09 | 山推工程机械股份有限公司 | A kind of cutting plate part finished edge positioning clamping device |
| CN108115246A (en) * | 2018-01-04 | 2018-06-05 | 上海宝业机电科技有限公司 | A kind of intersection cutting equipment and its application method |
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| Publication number | Publication date |
|---|---|
| CN115625399B (en) | 2023-03-07 |
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Denomination of invention: A large diameter elbow beveling machine Granted publication date: 20230307 Pledgee: Bank of China Limited by Share Ltd. Cangzhou branch Pledgor: Hebei Kairui Equipment Co.,Ltd. Registration number: Y2024980016125 |
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