CN112958892B - Pull rod horizontal clamping type flash butt welding machine - Google Patents

Pull rod horizontal clamping type flash butt welding machine Download PDF

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Publication number
CN112958892B
CN112958892B CN202110350985.0A CN202110350985A CN112958892B CN 112958892 B CN112958892 B CN 112958892B CN 202110350985 A CN202110350985 A CN 202110350985A CN 112958892 B CN112958892 B CN 112958892B
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China
Prior art keywords
clamping
seat
connecting rod
clamp seat
static
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CN202110350985.0A
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CN112958892A (en
Inventor
邓军
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Suzhou Anjia Auto Equipment Ltd
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Suzhou Anjia Auto Equipment Ltd
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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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/04—Flash butt welding
    • 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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/36—Auxiliary equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426—Fixtures for other work
    • B23K37/0435—Clamps
    • B23K37/0443—Jigs

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Jigs For Machine Tools (AREA)
  • Resistance Welding (AREA)

Abstract

The invention relates to a pull rod horizontal clamping type flash butt welding machine, wherein a static clamp group and a movable clamp group are used for clamping and positioning a workpiece, an upsetting device is used for pushing the clamp group to butt-joint and weld the workpiece, the static clamp group comprises a static clamp seat arranged oppositely, a guide shaft penetrating and fixed in the static clamp seat and a first clamping device arranged on the static clamp seat, the movable clamp group comprises a movable clamp seat and a second clamping device arranged on the movable clamp seat, the clamping device clamps and fixes the workpiece between a clamping block and a clamping seat, the clamping block is in sliding fit with the static clamp seat, a power shaft of an oil cylinder is rotatably connected with the joint of a herringbone connecting rod, and the oil cylinder is used for driving the herringbone connecting rod to act so as to drive the clamping block to move relative to a transverse clamping seat. According to the butt welding machine, large-size annular workpieces can be efficiently welded, the stability of the formed integral structure is high, the stability of operation of the butt welding machine is increased, and the high quality of workpiece welding is guaranteed.

Description

Pull rod horizontal clamping type flash butt welding machine
Technical Field
The invention relates to the technical field of welding equipment, in particular to a pull rod horizontal clamping type flash butt welding machine.
Background
Flash butt welding technology is widely applied to a plurality of industries such as building, electromechanics, railways, mining, metallurgy and the like as a resistance welding method. The welding device has the advantages of high welding efficiency, good joint quality, convenient equipment maintenance, simple operation and the like, is suitable for welding iron-based, copper-based, aluminum-based, titanium-based and other metals and alloys thereof, and has good adaptability to the cross section shape of a workpiece. In the workpieces welded by the flash butt welding technology, the plate and the flange are common workpiece forms in mechanical design, and have the characteristics of wide application range, large use amount and the like, but the problem that the wide thick plate and the flange are difficult to weld often limits the use of the wide thick plate and the flange.
In the design of flash butt welding equipment, the high-temperature strength of welding materials, the size of a welding section and other physical properties determine design parameters such as the size, the efficiency, the power and the like of a welding machine. The wind turbine bearing retainer is a typical annular part with a large circumferential dimension, and the retainer structure is widely applied to cylindrical roller bearings and promotes the technical development of the cylindrical roller bearings. The welding of the bearing retainer refers to butting two rectangular end surfaces of a curled retainer structure, and connecting the two end surfaces by a certain welding mode. At present, large-size bearing retainers can be welded by manual carbon dioxide gas shielded welding. However, the process requires workers to have strong professional skills, the labor intensity of the workers is high, the production efficiency is low, the quality of batch production is difficult to guarantee, and the cost is high. The corresponding butt welding equipment often has the defects of large welding machine size, difficult clamping of large-sized workpieces, high working plane, difficult operation of workers and the like.
Disclosure of Invention
The invention aims to provide a pull rod horizontal clamping type flash butt welding machine, which solves the problem of stability of a flash butt welding machine for welding large-size workpieces, is small in overall size and is convenient for workers to operate.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a pull rod horizontal clamping type flash butt welding machine which comprises a static clamp group, a movable clamp group and an upsetting device, wherein the static clamp group and the movable clamp group are used for clamping and positioning workpieces, a group of corresponding electrode devices is respectively arranged on the static clamp group and the movable clamp group, the upsetting device is used for pushing the clamp groups to enable the workpieces to be in butt joint welding, the static clamp group comprises a static clamp seat, a guide shaft and a first clamping device, the static clamp seat is oppositely arranged, the guide shaft is fixedly arranged in the static clamp seat in a penetrating mode, the first clamping device is arranged on the static clamp seat in a penetrating mode, the movable clamp group comprises a movable clamp seat and a second clamping device, the second clamping device is arranged on the movable clamp seat, the movable clamp seat can translate along the guide shaft, the movable clamp seat is connected with a telescopic shaft of the upsetting device, the first clamping device and the second clamping device are identical in structure, the first clamping device comprises an oil cylinder, a herringbone connecting rod, a clamping block and a clamping seat, the clamping seat is fixed on the static clamp seat, the clamping block is arranged relative to the clamping seat, the workpiece is fixedly arranged between the clamping block and the clamping seat, the herringbone connecting rod is connected with the dynamic clamp seat in a sliding mode, and the herringbone connecting shaft of the clamping seat, and the clamping cylinder is connected with the herringbone connecting rod to drive the oil cylinder to rotate, and the other end of the herringbone connecting rod to drive the dynamic connecting rod to rotate relative to rotate.
For the above technical solution, the applicant has further optimization measures.
Optionally, the static clamp group includes a first static clamp seat and a second static clamp seat which are oppositely arranged, the first static clamp seat and the second static clamp seat are fixedly arranged on the surface of the base, the guide shaft is fixed between the first static clamp seat and the second static clamp seat, and a first clamping device for clamping the workpiece is arranged on the first static clamp seat.
Furthermore, the butt welding machine comprises three guide shafts, the axes of the three guide shafts are fixed between the first static fixture seat and the second static fixture seat in parallel, and the three guide shafts are integrally in a delta shape.
Optionally, a plurality of through holes are formed in the surface of the movable clamp seat, a guide shaft penetrates through each through hole, and the movable clamp seat is driven by the upsetting device to translate along the guide shafts.
Further, a shaft sleeve is arranged in the through hole of the movable clamp seat, and the guide shaft sleeve is arranged in the shaft sleeve.
Furthermore, move and be provided with three through-hole in the anchor clamps seat, three through-hole is the distribution of article font, overlaps respectively in every through-hole and is equipped with a guiding axle, and the axis of each guiding axle wears to locate in moving the anchor clamps seat parallelly, the both ends of guiding axle respectively with quiet anchor clamps seat fixed connection.
Optionally, a slide way is arranged in the stationary fixture seat, the fixture block is in sliding fit with the slide way, and the arrangement direction of the slide way is perpendicular to the axis of the guide shaft.
Further, the herringbone connecting rod comprises a long connecting rod and a short connecting rod, the long connecting rod is rotatably connected with the short connecting rod, a rotating joint is further rotatably connected at the joint of the long connecting rod and the short connecting rod, the outer side of the rotating joint is connected with a power shaft of the oil cylinder, the other end of the short connecting rod is rotatably connected with the static clamp seat, and the other end of the long connecting rod is rotatably connected with the clamping block.
Further, the electrode device comprises an electrode, a conductive plate and a high-voltage power supply, the high-voltage power supply is arranged in the rack, the conductive plate is fixed on the outer side of the clamping block and is electrically connected with the high-voltage power supply, and the electrode is fixedly connected with the conductive plate and contacts with the workpiece when the clamping block and the clamping block are closed.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the pull rod horizontal clamping type flash butt welding machine is compact in structure and moderate in size, can be used for efficiently welding large-size annular workpieces, and is suitable for welding various large-section workpieces with different shapes, such as a bearing retainer of a wind driven generator and the like. In addition, due to the adoption of a three-shaft guide shaft arrangement structure, the stability of the whole structure is high, the running stability of the butt welding machine is increased, the welding piece is not misplaced during upsetting, and the high quality of welding the workpiece is ensured.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of a tie rod horizontal clamp type flash butt welding machine according to one embodiment of the invention;
FIG. 2 is a schematic view of the internal structure of the tie rod horizontal clamp flash butt welder shown in FIG. 1 with the second stationary clamp seat removed;
FIG. 3 is a schematic diagram showing the connection of the oil cylinder, the herringbone connecting rod and the clamping block in the tie rod horizontal clamping type flash butt welding machine shown in FIG. 1.
Wherein the reference numerals are as follows:
11. a first static clamp seat 12, a second static clamp seat 13 and a first clamping device;
21. a movable clamp seat 22 and a second clamping device;
3. an upsetting device;
4. a guide shaft;
51. the clamping block 52, the long connecting rod 53, the short connecting rod 54, the rotary joint 55, the clamping seat 56 and the slideway;
61. electrode, 62, conductive plate, 63, high voltage power supply;
7. a frame;
8. and an oil cylinder.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", "third" are used for descriptive purposes only, such as "first clamping device", "second clamping device", and are not to be construed as indicating or implying relative importance.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The present embodiment describes a tie rod horizontal clamping type flash butt welding machine, as shown in fig. 1 to 3, which may generally include a static clamp group, a dynamic clamp group, and an upsetting device 3, where the static clamp group, the dynamic clamp group, and the upsetting device 3 are all located above a frame 7 and supported by the frame 7. Quiet anchor clamps group, move anchor clamps group and carry out the centre gripping location to the work piece quiet anchor clamps group, move the anchor clamps group and be provided with a set of corresponding electrode device respectively, upset device 3 is used for pushing up and promotes anchor clamps group and make the work piece butt joint welding, quiet anchor clamps group is including the quiet anchor clamps seat of relative setting, wear to establish guiding axle 4 and the first clamping device 13 of setting on quiet anchor clamps seat that is fixed in quiet anchor clamps seat, move anchor clamps group including moving anchor clamps seat 21 and setting up the second clamping device 22 on moving anchor clamps seat 21, it can follow to move anchor clamps seat 21 guiding axle 4 translation, just move anchor clamps seat 21 with the telescopic shaft of upset device 3 links to each other.
Specifically, the static clamp group comprises a first static clamp seat 11 and a second static clamp seat 12 which are oppositely arranged, the first static clamp seat 11 and the second static clamp seat 12 are fixedly arranged on the surface of the base of the frame 7, the guide shaft 4 is fixed between the first static clamp seat 11 and the second static clamp seat 12, and a first clamping device 13 for clamping the workpiece is arranged on the first static clamp seat 11.
The butt welder of this embodiment includes three guiding axles 4, the 4 axis of three guiding axles are fixed parallelly between first quiet anchor clamps seat 11, the quiet anchor clamps seat 12 of second, and perpendicular to first quiet anchor clamps seat 11, the quiet anchor clamps seat 12 of second, and three above-mentioned guiding axles 4 length equals, and two are down, one last, make three guiding axles 4 wholly are the pin font. Correspondingly, move anchor clamps seat 21 surface and seted up three through-hole, three through-hole is the distribution of article font, overlaps respectively in every through-hole and is equipped with a guiding axle 4, and the axis of each guiding axle 4 wears to locate in moving anchor clamps seat 21 parallelly, the both ends of guiding axle 4 respectively with quiet anchor clamps seat fixed connection.
It can be seen that the moving clamp base 21 is disposed in the middle of the stationary clamp group and is supported by three guide shafts 4 between the two stationary clamp bases of the stationary clamp group. One side of the movable clamp seat 21 is fixed with a connecting shaft hole for connecting with the upsetting device 3, the upsetting device 3 is connected with the movable clamp through a joint bearing, and an upsetting oil cylinder is fixed on the outer side of the second stationary clamp seat 12 through a flange plate. With such an arrangement, the overall size of the movable clamp group and the upsetting device 3 is greatly reduced, and the reduction of the width of the frame 7 is also made possible. In addition, the movable clamp seat 21 is supported by the three guide shafts 4, so that the running stability of the movable clamp seat is increased, and the welded part can still be ensured not to be dislocated during upsetting under the action of larger upsetting force.
In order to ensure smooth sliding of the movable clamp seat 21 under the guiding action of the guide shaft 4, a shaft sleeve can be arranged in the through hole of the movable clamp seat 21, and the guide shaft 4 is sleeved in the shaft sleeve.
It should be noted that, considering the overall structural rigidity of the flash butt welding machine and the actual welding conditions, the three guide shafts 4 are fixed on the stationary fixture base by the round nuts on the left and right sides of the guide shafts 4, and the insulation of the guide shafts 4 is maintained during the welding process. The structure of the triangular three-guide-shaft 4 forms a relatively stable structure foundation, and meanwhile, a proper arrangement space is provided for a relatively high clamping mechanism. Therefore, when a thick plate and a flange are welded, the clamp (the static clamp group and the movable clamp group) does not overturn under the condition of upward movement in the integral redirection. Due to the optimized design of the static clamp group, the elevation of a welding plane is reduced, the whole volume is reduced, the operation of workers is facilitated, and the wire assembling is easy.
In this embodiment, the first clamping device 13 and the second clamping device 22 have the same structure, and it should be noted that, in consideration of the flash butt welding characteristic, the first clamping device 13 is disposed on only one static clamp seat in the static clamp group, and in this embodiment, the first clamping device 13 is disposed on the first static clamp seat 11. The first clamping device 13 and the second clamping device 22 are used for clamping and fixing two sides of the welding surface of the workpiece, the electrode devices respectively arranged at the two clamping devices are used for realizing the formation of electric arcs, and finally the upsetting device 3 pushes the movable clamp seat 21 to close the welding surface of the workpiece to finish welding.
Specifically, the first clamping device 13 is described as including an oil cylinder 8, a herringbone connecting rod, a clamping block 51 and a clamping seat 55, where the clamping seat 55 is fixed on a stationary fixture seat, the clamping block 51 is arranged relative to the clamping seat 55, a workpiece is clamped and fixed between the clamping block 51 and the clamping seat 55, the clamping block 51 is in sliding fit with the stationary fixture seat, a power shaft of the oil cylinder 8 is rotatably connected to a joint of the herringbone connecting rod, one end of the herringbone connecting rod is rotatably connected to the stationary fixture seat, and the other end of the herringbone connecting rod is rotatably connected to the clamping block 51, and the oil cylinder 8 is configured to drive the herringbone connecting rod to move so as to drive the clamping block 51 to move transversely relative to the clamping seat 55. The herringbone connecting rod comprises a long connecting rod 52 and a short connecting rod 53, the long connecting rod 52 is rotatably connected with the short connecting rod 53, a rotating joint 54 is further rotatably connected at the joint of the long connecting rod 52 and the short connecting rod 53, the outer side of the rotating joint 54 is connected with a power shaft of the oil cylinder 8, the other end of the short connecting rod 53 is rotatably connected with the first static clamp seat 12, and the other end of the long connecting rod 52 is rotatably connected with the clamping block 51.
In order to ensure the smoothness of the sliding of the fixture block 51, the uniform stress during upsetting and the stability of the device, a slide way 56 is arranged in the first stationary fixture seat 12, the fixture block 51 is in sliding fit with the slide way 56, and the arrangement direction of the slide way 56 is perpendicular to the axis of the guide shaft. The slide 56 may be a slide rail, a slide groove, or the like, so as to achieve a sliding fit with the latch 51 and effectively retain the latch therein.
Since the first clamping device 13 and the second clamping device 22 have the same structure, the structure of the second clamping device 22 disposed at the movable clamp seat 21 will not be described in detail herein.
It should be added that, in general, the electrode device includes an electrode 61, a conductive plate 62 and a high voltage power supply 63, the high voltage power supply 63 is disposed in the frame 7, the conductive plate 62 is fixed outside the fixture block 51 and electrically connected to the high voltage power supply 63, and the electrode 61 is fixedly connected to the conductive plate 62 and contacts the workpiece when the fixture block 51 is folded with the fixture block 55.
In conclusion, the pull rod horizontal clamping type flash butt welding machine is compact in structure, moderate in size, capable of efficiently welding large-size annular workpieces and suitable for welding large-section workpieces in various shapes, such as wind driven generator bearing holders and the like. In addition, due to the adoption of a three-shaft guide shaft arrangement structure, the stability of the whole structure is high, the running stability of the butt welding machine is increased, the welding piece is not misplaced during upsetting, and the high quality of welding the workpiece is ensured.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims (9)

1. A pull rod horizontal clamping type flash butt welding machine comprises a static clamp group, a movable clamp group and an upsetting device, wherein the static clamp group and the movable clamp group are used for clamping and positioning a workpiece, the static clamp group and the movable clamp group are respectively provided with a group of corresponding electrode devices, the upsetting device is used for jacking and pushing the clamp group to enable the workpiece to be in butt joint welding, the upsetting device is characterized in that the static clamp group comprises a static clamp seat, a guide shaft and a first clamping device, the static clamp seat is oppositely arranged, the guide shaft is fixedly arranged in the static clamp seat in a penetrating mode, the first clamping device is arranged on the static clamp seat, the movable clamp group comprises a movable clamp seat and a second clamping device, the second clamping device is arranged on the movable clamp seat, the movable clamp seat can move horizontally along the guide shaft, the movable clamp seat is connected with a telescopic shaft of the upsetting device, the first clamping device and the second clamping device are structurally identical, the first clamping device comprises an oil cylinder, a herringbone connecting rod, a clamping block and a clamping seat, the static clamping seat is fixed on the clamp seat, the clamping block is arranged relative to the clamping block, the clamping seat is fixedly arranged between the clamping block and the clamping seat, the herringbone connecting rod is connected with the dynamic shaft of the herringbone connecting rod, and the clamping seat, and the other end of the herringbone connecting rod is connected with the dynamic shaft of the herringbone connecting rod, and is connected with the herringbone connecting rod, and the dynamic clamp seat, and the dynamic connecting rod, and the herringbone connecting rod is connected with the oil cylinder.
2. The tie rod horizontal clamping type flash butt welder according to claim 1, wherein the static clamp group comprises a first static clamp seat and a second static clamp seat which are oppositely arranged, the first static clamp seat and the second static clamp seat are fixedly arranged on the surface of the base, the guide shaft is fixed between the first static clamp seat and the second static clamp seat, and a first clamping device for clamping the workpiece is arranged on the first static clamp seat.
3. The horizontal clamping type flash butt welder of claim 2, wherein the butt welder comprises three guide shafts, the axes of the three guide shafts are fixed between the first static clamp seat and the second static clamp seat in parallel, and the three guide shafts are in a delta shape integrally.
4. The tie-rod horizontal clamping type flash butt welder according to claim 1, wherein a plurality of through holes are formed in the surface of the movable clamp seat, a guide shaft is respectively arranged in each through hole in a penetrating manner, and the movable clamp seat is driven by the upsetting device to translate along the guide shafts.
5. The tie-rod horizontal clamp flash butt welder according to claim 4, wherein a bushing is disposed within the through-hole of the moving clamp seat, and the guide bushing is disposed within the bushing.
6. The tie rod horizontal clamp type flash butt welding machine according to claim 4 or 5, wherein three through holes are arranged in the movable clamp seat, the three through holes are distributed in a delta shape, a guide shaft is respectively sleeved in each through hole, the axis of each guide shaft penetrates through the movable clamp seat in parallel, and two ends of each guide shaft are respectively fixedly connected with the static clamp seat.
7. The tie-rod horizontal clamping flash butt welder according to claim 1, wherein a slideway is provided in the stationary clamp seat, the fixture block is in sliding fit with the slideway, and the slideway is provided in a direction perpendicular to an axis of the guide shaft.
8. The tie-bar horizontal clamp flash butt welder according to claim 7, wherein the chevron-shaped connecting rod comprises a long connecting rod and a short connecting rod, the long connecting rod and the short connecting rod are rotatably connected together, a rotating joint is further rotatably connected at the joint of the long connecting rod and the short connecting rod, the outer side of the rotating joint is connected with a power shaft of the oil cylinder, the other end of the short connecting rod is rotatably connected with the stationary fixture seat, and the other end of the long connecting rod is rotatably connected with the fixture block.
9. The tie-bar horizontal clamp flash butt welder according to claim 7, wherein the electrode device comprises an electrode, a conductive plate and a high voltage power supply, the high voltage power supply is arranged in the frame, the conductive plate is fixed on the outer side of the clamping block and is electrically connected with the high voltage power supply, and the electrode is fixedly connected with the conductive plate and contacts the workpiece when the clamping block and the clamping seat are closed.
CN202110350985.0A 2021-03-31 2021-03-31 Pull rod horizontal clamping type flash butt welding machine Active CN112958892B (en)

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Application Number Priority Date Filing Date Title
CN202110350985.0A CN112958892B (en) 2021-03-31 2021-03-31 Pull rod horizontal clamping type flash butt welding machine

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Application Number Priority Date Filing Date Title
CN202110350985.0A CN112958892B (en) 2021-03-31 2021-03-31 Pull rod horizontal clamping type flash butt welding machine

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CN112958892A CN112958892A (en) 2021-06-15
CN112958892B true CN112958892B (en) 2022-12-06

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SU386731A1 (en) * 1971-10-25 1973-06-21 CONTACT JOINT WELDING MACHINE
JP2006104816A (en) * 2004-10-06 2006-04-20 Dengensha Mfg Co Ltd Method and equipment for manufacturing bridgeboard for steel staircase
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