CN113020351B - Flat-bending and vertical-bending integrated device for low-voltage side busbar of transformer - Google Patents

Flat-bending and vertical-bending integrated device for low-voltage side busbar of transformer Download PDF

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Publication number
CN113020351B
CN113020351B CN202110320315.4A CN202110320315A CN113020351B CN 113020351 B CN113020351 B CN 113020351B CN 202110320315 A CN202110320315 A CN 202110320315A CN 113020351 B CN113020351 B CN 113020351B
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China
Prior art keywords
plate
bending
sides
base
busbar
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CN202110320315.4A
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CN113020351A (en
Inventor
冯昌军
范洪群
徐晨曦
宋奇
任少坤
张建利
李守鹏
谢明秋
许兆涛
王永立
郭朔
桑盛强
张爱明
李颖
王志鹏
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Yuncheng Power Supply Company State Grid Shandong Electric Power Co
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Yuncheng Power Supply Company State Grid Shandong Electric Power Co
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Publication of CN113020351A publication Critical patent/CN113020351A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/04—Bending rods, profiles, or tubes over a movably-arranged forming menber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The invention discloses a horizontal bending and vertical bending integrated device for a busbar on the low-voltage side of a transformer, which comprises a base, rotating rollers, a hydraulic cylinder and a top die, wherein two groups of rotating rollers are symmetrically arranged on two sides of the hydraulic cylinder; the middle parts of two sides of the top die are respectively provided with an L-shaped clamping plate which is symmetrical up and down, a second clamping groove is formed between the two L-shaped clamping plates, and the busbar is placed between the first clamping groove and the second clamping groove when the busbar is vertically bent. According to the invention, the hydraulic cylinder is arranged on the base, the rotating rollers are arranged on two sides of the hydraulic cylinder, the busbar is placed on one side of the rotating roller when the busbar is bent flatly, the busbar is placed in the first clamping grooves of the rotating rollers on two sides when the busbar is bent vertically, the hydraulic cylinder is used for driving the top die to bend the busbar, the flatwise bending and the vertical bending of the busbar are integrated, and the purchasing cost of a construction unit is reduced.

Description

Flat-bending and vertical-bending integrated device for low-voltage side busbar of transformer
Technical Field
The invention belongs to the technical field of transformers, and particularly relates to a flat-bending, vertical-bending and integrated device for a busbar on the low-voltage side of a transformer.
Background
The copper bar or the aluminum bar is also called as a busbar and is a long conductor which is made of copper material or aluminum material and has a rectangular or chamfered (fillet) rectangular section. In the power supply system, the main switch in the electric cabinet is connected with the switches in the branch circuits. The surface of the copper bar or the aluminum bar is subjected to insulation treatment and mainly used as a lead.
In modern power grid construction, installation of a transformer is often involved. For example, when an electric power substation, a power distribution device and electrical engineering are installed, a copper bar or an aluminum bar is required to be connected with electrical equipment, a large current-carrying connecting line needs a large copper bar or aluminum bar (also called a bus or a busbar), a connecting copper bar of a transformer is formed by combining a plurality of copper plates, and the transformer needs to be bent frequently in order to adapt to different installation spaces. The traditional busbar bending method generally adopts manual bending or hydraulic bending machine bending, the manual bending is generally troublesome and labor-consuming, the labor intensity is high especially for bending the large-size busbar, and the bending angle is different due to different force application at each time; the existing hydraulic bending machine is divided into a flat bending machine and a vertical bending machine according to functions, the busbar required by different bending needs to be operated by using a special bending machine, for example, when the busbar needs to be bent flatly, the flat bending machine is used for bending, when the busbar needs to be bent vertically, the vertical bending machine is used for bending, different bending machines need to be purchased by a construction unit, and the purchasing cost of the construction unit is increased.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a flat-bending and vertical-bending integrated device for a busbar on the low-voltage side of a transformer.
In order to achieve the purpose, the invention adopts the technical scheme that:
a horizontal-bending vertical-bending integrated device for a busbar on the low-voltage side of a transformer comprises a base, rotating rollers, a hydraulic cylinder and a top die, wherein supporting legs are arranged on the lower portion of the base, a cylinder base is arranged on one side of the upper portion of the base, the hydraulic cylinder is mounted on the cylinder base, two groups of rotating rollers are symmetrically arranged on two sides of the hydraulic cylinder, the lower portion of each rotating roller is movably mounted on the base through a rotating shaft, limiting end plates are arranged at two ends of each rotating roller, a first clamping groove is formed in the middle of each rotating roller, during horizontal bending, the busbar is placed on the same side of each rotating roller, during vertical bending, the busbar is placed in the first clamping grooves of the rotating rollers on two sides, one end of a piston rod of the hydraulic cylinder is connected with the top die, the top die is of a V-shaped structure, and the vertex angle of the top die is the same as the bending angle of the busbar; the top die is characterized in that L-shaped clamp plates which are symmetrical up and down are arranged in the middle of the two sides of the top die, a plurality of screw bolts are arranged on one side of each L-shaped clamp plate, through holes are formed in the lower portions of the two sides of the top die, adjusting nuts are connected to the screw bolts after penetrating through the through holes, a second clamp groove is formed between the two L-shaped clamp plates, when the bus is bent, the bus is placed between the first clamp groove and the second clamp groove, sliding or twisting of the bus due to stress is avoided, and the bending effect of the bus is guaranteed.
When the busbar is bent flatly, the L-shaped clamping plate is taken down, the busbar is placed on one side of the rotating roller close to the hydraulic cylinder, and the limiting end plates on the two sides of the rotating roller ensure the flatness of the busbar, so that the bending effect of the busbar is ensured; when the busbar is bent vertically, the L-shaped clamping plate is arranged in the through hole and fixed through the adjusting nut, and then the busbar is placed in the first clamping groove in the middle of the rotating roller to limit the movement of the busbar and avoid the sliding of the busbar during bending; after the busbar is placed, a piston rod of the hydraulic cylinder extends out to drive the top die to move forwards, the top die is contacted with the busbar and then continuously moves forwards, the busbar is bent under the action of external force, after a bending angle of the busbar reaches a preset angle, the piston rod stops extending, the ejection state is kept for a period of time, the accuracy of the bending angle of the busbar is guaranteed, then the piston rod contracts, the busbar is taken down, and the bending operation of the busbar is finished.
As a further preferred option of this technical scheme, base upper portion both sides are equipped with a plurality of first pillars, and the spacing end plate of commentaries on classics roller is stretched out to the pivot upper end of commentaries on classics roller, commentaries on classics roller upper portion is equipped with the apron, is equipped with the mounting hole that corresponds with first pillar and pivot on the apron, and first pillar and pivot upper end are equipped with fastening nut, and the apron has avoided female arranging in-process of bending to bounce and has caused personnel injured, for the ease of the quick assembly disassembly of apron, fastening nut is butterfly nut, for the ease of getting of apron, apron upper portion is equipped with the second handle.
As a further preferred option of the technical scheme, a plurality of first adjusting holes are arranged on the base, the first adjusting holes are symmetrically arranged on two sides of the cylinder base, a plurality of second adjusting holes corresponding to the first adjusting holes are arranged on the cover plate, the rotating rollers are symmetrically arranged in the first adjusting holes at different positions, and the bending angle of the busbar can be conveniently adjusted.
As a further optimization of the technical scheme, the top die comprises a first top plate and a second top plate, one end of the first top plate is hinged to one end of the second top plate through a pin shaft, a base plate is arranged on one side of each of the first top plate and the second top plate, a plurality of rib plates are arranged on two sides of each of the base plates, a scissor type support is connected to one side of each of the base plates on two sides of the base plate, the scissor type support is of a diamond structure formed by four connecting plates in a hinged mode, a U-shaped block is arranged at the front end of the scissor type support, and a connecting block is arranged at the rear end of the scissor type support; one end of a piston rod of the hydraulic cylinder is movably connected with a rotary table through a bearing, a plurality of first handles are arranged in the circumferential direction of the rotary table, a first screw rod is fixedly connected to the other side of the rotary table, the front end of the first screw rod is movably connected with a U-shaped block through a bearing, and the middle part of the first screw rod is in threaded connection with a connecting block; the rotating turntable drives the first screw rod to rotate, when the first screw rod rotates, the opening angle of the front end of the scissor type support is adjusted by changing the position of the connecting block on the first screw rod, so that the included angle between the first top plate and the second top plate is adjusted, the adjustment of the angle of the top die is realized, and the busbar with different bending angles can be constructed conveniently.
As a further preference of the technical scheme, the rotating roller comprises a lower roller and an upper roller, wherein the middle part of the lower roller is provided with a jack, the upper roller is provided with an annular inserting plate matched with the jack, the upper part of the rotating shaft is provided with a thread, the upper roller is in threaded connection with the rotating shaft, and two rotating plates are symmetrically arranged on two sides of the upper part of the upper roller; the first top plate and the second top plate are provided with first adjusting grooves, and studs of the upper L-shaped clamping plates are arranged in the first adjusting grooves; the rotating rotary plate drives the upper roller to rotate, the height of the rotating roller or the height of the first clamping groove is adjusted, and meanwhile, the position of the upper L-shaped clamping plate is adjusted through the first adjusting groove to adjust the height of the second clamping groove.
As a further preferred of this technical scheme, the picture peg middle part is equipped with the holding tank, the inside spring that is equipped with of holding tank, the spring housing is established in the outside of pivot, goes up the roller adjustment back, and the spring upwards withstands the thread of roller and pivot, has avoided last roller rotatory under the unexpected circumstances.
As the further optimization of the technical scheme, rubber pads are arranged on the outer sides of the upper roller, the lower roller and the inserting plate, so that the busbar is prevented from being scratched during bending.
As a further preferred option of the technical solution, the scissor bracket and the base plate are detachably connected by a bolt (not shown in the figure), specifically, the base plate is provided with a plurality of threaded holes, a connecting plate of the scissor bracket contacting the base plate is provided with a plurality of threaded holes corresponding to the threaded holes of the base plate, the threaded holes are provided with bolts, and the scissor bracket is detachably fixed on the base plate by the bolts, so that the top mold or the scissor bracket can be conveniently maintained and replaced.
As a further optimization of the technical scheme, one side of the base is provided with a blocking mold, the blocking mold comprises a first blocking plate and a second blocking plate which are hinged with each other, hinged supports are arranged on one sides of the first blocking plate and the second blocking plate, an adjusting mechanism is arranged on one side of the blocking mold, the adjusting mechanism comprises a mounting plate, a linkage plate and a connecting rod, the mounting plate is arranged on the base, one side of the mounting plate is provided with a side plate, second pillars are arranged on two sides of the upper portion of the mounting plate, the middle portion of the linkage plate is movably connected with a second screw rod through a bearing, one end of the second screw rod penetrates through the side plate and is connected with a first hand wheel, sliding grooves are arranged on two sides of the linkage plate, one end of the connecting rod is movably connected with the sliding grooves through a pin shaft, the middle portion of the connecting rod is hinged with the second pillars, and the other end of the connecting rod is hinged with the hinged supports; the opening and closing angles of the first baffle and the second baffle are adjusted by rotating the first hand wheel and correspond to the included angle between the first top plate and the second top plate of the top die, so that the bending effect of the busbar is ensured; first baffle and second baffle one side all are equipped with the L type splint of longitudinal symmetry, and the L type splint on the fender mould is the same with the L type splint on the top mould structure, no longer details, and the upper portion of first baffle and second baffle all is equipped with the second adjustment tank, and the distance between the L type splint on the fender mould through the adjustment of second adjustment tank suits with the second clamp groove of the L type splint of top mould.
As a further preference of the technical scheme, one end of the base is provided with a guide groove, one end of the guide groove is connected with an end cover, the lower part of the mounting plate is provided with a sliding block matched with the guide groove, the sliding block is in threaded connection with a third screw rod, and one end of the third screw rod penetrates through the end cover and is connected with a second hand wheel; the second hand wheel is rotated to adjust the position of the adjusting mechanism on the base, so that when different bending angles are guaranteed, the busbar is bent in place, and the bending precision of the busbar is guaranteed.
The invention has the beneficial effects that:
1) According to the invention, the hydraulic cylinder is arranged on the base, the rotating rollers are arranged on two sides of the hydraulic cylinder, the first clamping groove is arranged in the middle of the rotating roller, the busbar is placed on one side of the rotating roller when the busbar is bent flatly, the busbar is placed in the first clamping grooves of the rotating rollers on two sides when the busbar is bent vertically, the hydraulic cylinder is used for driving the top die to bend the busbar, the flatting bending and the vertical bending of the busbar are integrated, and the purchasing cost of a construction unit is reduced.
2) Base upper portion both sides are equipped with a plurality of first pillars, the spacing end plate of commentaries on classics roller is stretched out to the pivot upper end of commentaries on classics roller, commentaries on classics roller upper portion is equipped with the apron, be equipped with the mounting hole that corresponds with first pillar and pivot on the apron, first pillar and pivot upper end are equipped with fastening nut, the apron has been avoided female arranging of arranging the bending in-process and has bounced and cause personnel injured, for the ease of quick assembly disassembly of apron, fastening nut is butterfly nut, for the ease of getting of apron, apron upper portion is equipped with the second handle.
3) Be equipped with a plurality of first regulation holes on the base, a plurality of first regulation holes set up in the both sides of jar seat symmetrically, are equipped with a plurality of second regulation holes that correspond with first regulation hole on the apron, will change the roller and install inside the first regulation hole of different positions symmetrically, are convenient for adjust female angle of bending of arranging.
4) The top die comprises a first top plate and a second top plate, one ends of the first top plate and the second top plate are hinged through a pin shaft, base plates are arranged on one sides of the first top plate and the second top plate, a plurality of rib plates are arranged on two sides of each base plate, one sides of the base plates on the two sides are connected with a scissor type support, each scissor type support is of a diamond structure formed by four connecting plates in a hinged mode, a U-shaped block is arranged at the front end of each scissor type support, and a connecting block is arranged at the rear end of each scissor type support; one end of a piston rod of the hydraulic cylinder is movably connected with a rotary table through a bearing, a plurality of first handles are arranged in the circumferential direction of the rotary table, a first screw rod is fixedly connected to the other side of the rotary table, the front end of the first screw rod is movably connected with a U-shaped block through a bearing, and the middle part of the first screw rod is in threaded connection with a connecting block; the rotating turntable drives the first screw rod to rotate, when the first screw rod rotates, the opening angle of the front end of the scissor type support is adjusted by changing the position of the connecting block on the first screw rod, so that the included angle between the first top plate and the second top plate is adjusted, the adjustment of the angle of the top die is realized, and the busbar with different bending angles can be conveniently constructed
5) The rotating roller comprises a lower roller and an upper roller, the middle part of the lower roller is provided with a jack, the upper roller is provided with an annular inserting plate matched with the jack, the upper part of the rotating shaft is provided with a thread, the upper roller is in threaded connection with the rotating shaft, and two rotating plates are symmetrically arranged on two sides of the upper part of the upper roller; the first top plate and the second top plate are provided with first adjusting grooves, and studs of the upper L-shaped clamping plates are arranged in the first adjusting grooves; the rotating rotary plate drives the upper roller to rotate, the height of the rotating roller or the height of the first clamping groove is adjusted, and meanwhile, the position of the upper L-shaped clamping plate is adjusted through the first adjusting groove to adjust the height of the second clamping groove.
6) The picture peg middle part is equipped with the holding tank, and the inside spring that is equipped with of holding tank, spring housing establish the outside at the pivot, go up the roller adjustment back, the spring upwards withstands the thread of roller and pivot, has avoided the roller rotatory under the unexpected circumstances.
7) Rubber pads are arranged on the outer sides of the upper roller, the lower roller and the inserting plate, so that scratching during bending of the busbar is avoided.
8) The shear type support is detachably connected with the base plate through a bolt, a plurality of threaded holes are formed in the base plate, a plurality of threaded holes corresponding to the threaded holes of the base plate are formed in a connecting plate, which is in contact with the base plate, of the shear type support, bolts are arranged in the threaded holes, and the shear type support is detachably fixed on the base plate through the bolts, so that the top die or the shear type support can be conveniently maintained and replaced.
9) One side of the base is provided with a blocking die, the blocking die comprises a first blocking plate and a second blocking plate which are hinged with each other, hinged supports are arranged on one sides of the first blocking plate and the second blocking plate, an adjusting mechanism is arranged on one side of the blocking die and comprises a mounting plate, a linkage plate and a connecting rod, the mounting plate is arranged on the base, a side plate is arranged on one side of the mounting plate, second support columns are arranged on two sides of the upper portion of the mounting plate, the middle of the linkage plate is movably connected with a second screw rod through a bearing, one end of the second screw rod penetrates through the side plate and is connected with a first hand wheel, sliding grooves are arranged on two sides of the linkage plate, one end of the connecting rod is movably connected with the sliding grooves through a pin shaft, the middle of the connecting rod is hinged with the second support columns, and the other end of the connecting rod is hinged with the hinged supports; the opening and closing angle of the first baffle and the second baffle is adjusted by rotating the first hand wheel, and the opening and closing angle corresponds to the included angle of the first top plate and the second top plate of the top die, so that the bending effect of the busbar is ensured; first baffle and second baffle one side all are equipped with the L type splint of longitudinal symmetry, and the L type splint on the fender mould is the same with the L type splint on the top mould structure, no longer details, and the upper portion of first baffle and second baffle all is equipped with the second adjustment tank, and the distance between the L type splint on the fender mould through the adjustment of second adjustment tank suits with the second clamp groove of the L type splint of top mould.
10 One end of the base is provided with a guide groove, one end of the guide groove is connected with an end cover, the lower part of the mounting plate is provided with a slide block matched with the guide groove, the slide block is in threaded connection with a third screw rod, and one end of the third screw rod penetrates through the end cover and is connected with a second hand wheel; the second hand wheel is rotated to adjust the position of the adjusting mechanism on the base, so that when different bending angles are guaranteed, the busbar is bent in place, and the bending precision of the busbar is guaranteed.
Drawings
FIG. 1 is a horizontal bending and vertical bending integrated device horizontal bending and vertical bending state diagram of a low-voltage side busbar of a transformer.
FIG. 2 is a schematic structural diagram of a cover plate removing structure of the horizontal bending and vertical bending integrated device for the busbar on the low-voltage side of the transformer.
FIG. 3 is a schematic structural diagram of a base in the device integrating the horizontal bending, vertical bending and the vertical bending of the busbar on the low-voltage side of the transformer.
FIG. 4 is a sectional view of a rotating roller in the device integrating the horizontal bending, vertical bending and the vertical bending of the busbar on the low-voltage side of the transformer.
FIG. 5 is an exploded view of a rotating roller in the horizontal bending and vertical bending integrated device for the busbar on the low-voltage side of the transformer.
FIG. 6 is a schematic diagram of the assembly of a hydraulic cylinder and a top die in the device integrating the horizontal bending and vertical bending of the busbar on the low-voltage side of the transformer.
FIG. 7 is a schematic structural diagram of a scissor bracket in the horizontal bending and vertical bending integrated device for the busbar on the low-voltage side of the transformer.
FIG. 8 is a schematic diagram of the assembly of a top die and a scissor-type bracket in the device for bending and bending the busbar at the low-voltage side of the transformer.
FIG. 9 is an explosion diagram of a top mold in the device for bending and bending the busbar at the low-voltage side of the transformer.
FIG. 10 is a vertical bending using state diagram of the horizontal bending vertical bending integrated device for the busbar on the low voltage side of the transformer.
Fig. 11 is a schematic diagram of a top mold structure in the device for bending and bending the busbar on the low-voltage side of the transformer.
Fig. 12 is an assembly schematic diagram of a top die and an adjusting mechanism during vertical bending of a horizontal bending and vertical bending integrated device for a busbar on the low-voltage side of a transformer.
FIG. 13 is an assembly schematic diagram of a top die and an adjusting mechanism during flat bending in the integrated device for flat bending and vertical bending of the busbar on the low-voltage side of the transformer.
FIG. 14 is a rear side vertical view of a top die in the device for bending and bending the busbar at the low voltage side of the transformer.
FIG. 15 is an exploded view of an adjusting structure in the device for bending and bending the busbar at the low-voltage side of the transformer.
FIG. 16 is an assembly schematic diagram of a mounting plate in the device integrating the horizontal bending, vertical bending and the vertical bending of the busbar on the low-voltage side of the transformer.
In the figure: 1. a base; 101. a cylinder base; 102. a support leg; 103. a first support; 104. a first adjustment aperture; 105. a guide groove; 106. an end cap;
2. rotating the roller; 201. a lower roll; 202. upper roll; 203. a rotating shaft; 204. a jack; 205. inserting plates; 206. a spring; 207. a first clamping groove; 208. rotating the plate;
3. a hydraulic cylinder; 301. a piston rod; 302. a turntable; 303. a first handle; 304. a scissor-type stand; 305. a U-shaped block; 306. connecting blocks; 307. a first screw;
4. carrying out top die; 401. a first top plate; 402. a second top plate; 403. a base plate; 404. a rib plate; 405. a first regulating groove; 406. an L-shaped splint; 407. a stud; 408. adjusting the nut; 409. a second clamping groove;
5. a busbar;
6. blocking the mold; 601. a first baffle plate; 602. a second baffle; 603. a second regulating groove; 604. a through hole; 605. a hinged support;
7. an adjustment mechanism; 701. mounting a plate; 702. a side plate; 703. a slider; 704. a second support; 705. a first hand wheel; 706. a second screw; 707. a linkage plate; 708. a chute; 709. a connecting rod; 710. a second hand wheel; 711. a third screw;
8. a cover plate; 801. fastening a nut; 802. a second adjustment aperture; 803. a second handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 16, and it is obvious 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, a particular orientation configuration and operation, and therefore, are not to be construed as limiting the present invention.
Referring to fig. 1-3 and fig. 11, a horizontal bending and vertical bending integrated device for a busbar on a low-voltage side of a transformer comprises a base 1, rotating rollers 2, a hydraulic cylinder 3 and a top die 4, wherein supporting legs 102 are arranged on the lower portion of the base 1, a cylinder base 101 is arranged on one side of the upper portion of the base 1, the hydraulic cylinder 3 is arranged on the cylinder base 101, two sets of rotating rollers 2 are symmetrically arranged on two sides of the hydraulic cylinder 3, the lower portion of each rotating roller 2 is movably arranged on the base 1 through a rotating shaft 203, limiting end plates are arranged at two ends of each rotating roller 2, a first clamping groove 207 is arranged in the middle of each rotating roller 2, during horizontal bending, the busbar 5 is arranged on the same side of each rotating roller 2, during vertical bending, the busbar 5 is arranged in the first clamping grooves 207 of the rotating rollers 2 on two sides, one end of a piston rod 301 of the hydraulic cylinder 3 is connected with the top die 4, the top die 4 is of a V-shaped structure, and the vertex angle of the top die is the bending angle of the busbar 5; the middle parts of two sides of the top die 4 are respectively provided with an L-shaped clamping plate 406 which is symmetrical up and down, one side of the L-shaped clamping plate 406 is provided with a plurality of studs 407, the lower parts of two sides of the top die 4 are respectively provided with a through hole 604, the studs 407 penetrate through the through holes 604 and are connected with adjusting nuts 408, a second clamping groove 409 is formed between the two L-shaped clamping plates 406, the busbar 5 is placed between the first clamping groove 207 and the second clamping groove 409 during vertical bending, sliding or twisting of the busbar 5 due to stress is avoided, and the bending effect of the busbar 5 is ensured.
When the busbar 5 is bent flatly, the L-shaped clamping plate 406 is taken down, the busbar 5 is placed on one side of the roller 2 close to the hydraulic cylinder 3, and the limiting end plates on the two sides of the roller 2 ensure the flatness of the busbar 5, so that the bending effect of the busbar 5 is ensured; when the busbar 5 is vertically bent, the L-shaped clamping plate 406 is arranged in the through hole 604 and is fixed through the adjusting nut 408, then the busbar 5 is placed in the first clamping groove 207 in the middle of the rotary roller 2, the movement of the busbar 5 is limited, and the sliding of the busbar 5 during bending is avoided; female row 5 places the completion back, and the piston rod 301 of pneumatic cylinder 3 stretches out, drives top mould 4 forward motion, and top mould 4 contact is female arranges 5 backs, continues to move forward, and female row 5 bends under the effect of external force this moment, after female row 5 angle of bending reaches predetermined angle, piston rod 301 stops the extension, and keep ejecting state for a period, in order to guarantee female accuracy of arranging 5 angles of bending, piston rod 301 shrink afterwards, will arrange 5 take off of arranging, accomplish the operation of bending of female row 5 promptly.
Referring to fig. 1 and 3, in this embodiment, base 1 upper portion both sides are equipped with a plurality of first pillars 103, and the spacing end plate of changeing roller 2 is stretched out to the pivot 203 upper end of changeing roller 2, change 2 upper portions of roller and be equipped with apron 8, be equipped with the mounting hole that corresponds with first pillar 103 and pivot 203 on the apron 8, first pillar and pivot 203 upper end are equipped with fastening nut 801, and apron 8 has avoided female arranging 5 of 5 bending in-process of arranging to bounce and has caused personnel's injury, for the ease of the quick assembly disassembly of apron 8, fastening nut 801 is butterfly nut, for the ease of getting of apron 8, apron 8 upper portion is equipped with second handle 803.
Referring to fig. 1 and 3, in this embodiment, a plurality of first adjusting holes 104 are formed in the base 1, the plurality of first adjusting holes 104 are symmetrically disposed on two sides of the cylinder base 101, a plurality of second adjusting holes 802 corresponding to the first adjusting holes 104 are formed in the cover plate 8, and the rotating rollers 2 are symmetrically disposed inside the first adjusting holes 104 at different positions, so that the bending angle of the busbar 5 can be adjusted conveniently.
Referring to fig. 6 to 9, in this embodiment, the top mold 4 includes a first top plate 401 and a second top plate 402, one end of the first top plate 401 is hinged to one end of the second top plate 402 through a pin, a pad 403 is disposed on each of one sides of the first top plate 401 and the second top plate 402, a plurality of rib plates 404 are disposed on each of two sides of the pad 403, a scissor-type bracket 304 is connected to one side of the pad 403 on each of the two sides, the scissor-type bracket 304 is a diamond structure formed by four connecting plates through hinge joint, a U-shaped block 305 is disposed at the front end of the scissor-type bracket 304, and a connecting block 306 is disposed at the rear end of the scissor-type bracket 304; one end of a piston rod 301 of the hydraulic cylinder 3 is movably connected with a rotary table 302 through a bearing, a plurality of first handles 303 are arranged on the rotary table 302 in the circumferential direction, the other side of the rotary table 302 is fixedly connected with a first screw 307, the front end of the first screw 307 is movably connected with a U-shaped block 305 through a bearing, and the middle part of the first screw 307 is in threaded connection with a connecting block 306; the rotating turntable 302 drives the first screw 307 to rotate, when the first screw 307 rotates, the opening angle of the front end of the scissor type support 304 is adjusted by changing the position of the connecting block 306 on the first screw 307, so that the included angle between the first top plate 401 and the second top plate 402 is adjusted, the adjustment of the angle of the top die 4 is realized, and the busbar 5 with different bending angles can be conveniently constructed.
Referring to fig. 4-5, in the present embodiment, the rotating roller 2 includes a lower roller 201 and an upper roller 202, a jack 204 is disposed in the middle of the lower roller 201, the upper roller 202 is provided with an annular insertion plate 205 matched with the jack 204, the upper portion of the rotating shaft 203 is provided with a thread, the upper roller 202 is in threaded connection with the rotating shaft 203, and two rotating plates 208 are symmetrically disposed on two sides of the upper portion of the upper roller 202; a first adjusting groove 405 is formed in the first top plate 401 and the second top plate 402, and a stud 407 of an upper L-shaped clamping plate 406 is mounted in the first adjusting groove 405; the rotating rotary plate 208 drives the upper roller 202 to rotate, the height of the rotating roller 2 or the height of the first clamping groove 207 is adjusted, meanwhile, the position of the upper L-shaped clamping plate 406 is adjusted through the first adjusting groove 405, the height of the second clamping groove 409 is adjusted, and the device is suitable for flat bending or vertical bending operation of busbars 5 with different widths and thicknesses.
Referring to fig. 4-5, in this embodiment, the middle part of the inserting plate 205 is provided with an accommodating groove, the accommodating groove is internally provided with a spring 206, the spring 206 is sleeved outside the rotating shaft 203, and after the upper roller 202 is adjusted, the spring 206 upwards props against the threads of the upper roller 202 and the rotating shaft 203, so that the rotation of the upper roller 202 in an accidental situation is avoided.
In this embodiment, rubber pads are disposed on outer sides of the upper roller 202, the lower roller 201 and the inserting plate 205, so that scratches caused by bending of the busbar 5 are avoided.
In this embodiment, the scissor bracket 304 and the base plate 403 are detachably connected by bolts (not shown in the figure), specifically, a plurality of threaded holes are formed in the base plate 403, a plurality of threaded holes corresponding to the threaded holes of the base plate 403 are formed in a connecting plate where the scissor bracket 304 and the base plate 403 are in contact, and bolts are arranged in the threaded holes, so that the scissor bracket 304 is detachably fixed on the base plate 403 by the bolts, which facilitates maintenance and replacement of the top mold 4 or the scissor bracket 304.
Referring to fig. 2, 10, and 12-16, in this embodiment, a blocking mold 6 is disposed on one side of the base 1, the blocking mold 6 includes a first blocking plate 601 and a second blocking plate 602 that are hinged to each other, hinged supports 605 are disposed on one sides of the first blocking plate 601 and the second blocking plate 602, an adjusting mechanism 7 is disposed on one side of the blocking mold 6, the adjusting mechanism 7 includes a mounting plate 701, a linkage plate 707, and a connecting rod 709, the mounting plate 701 is disposed on the base 1, a side plate 702 is disposed on one side of the mounting plate 701, second supports 704 are disposed on two sides of an upper portion of the mounting plate 701, a second screw 706 is movably connected to the middle of the linkage plate 707 through a bearing, one end of the second screw 706 penetrates through the side plate 702 and is connected to a first hand wheel 705, sliding grooves 708 are disposed on two sides of the linkage plate 707, one end of the connecting rod 709 is movably connected to the sliding grooves 708 through a pin, the middle of the connecting rod 709 is hinged to the second support 704, and the other end of the connecting rod 709 is hinged supports 605; the opening and closing angles of the first baffle 601 and the second baffle 602 are adjusted by rotating the first hand wheel 705, and correspond to the included angle between the first top plate 401 and the second top plate 402 of the top die 4, so that the bending effect of the busbar 5 is ensured; the first baffle 601 and the second baffle 602 are provided with vertically symmetrical L-shaped clamping plates 406 on one side, the L-shaped clamping plates 406 on the blocking mold 6 have the same structure as the L-shaped clamping plates 406 on the top mold 4, and no further details are provided, the upper parts of the first baffle 601 and the second baffle 602 are provided with second adjusting grooves 603, and the distance between the L-shaped clamping plates 406 on the blocking mold 6 is adjusted through the second adjusting grooves 603 to be adapted to the second clamping grooves 409 of the L-shaped clamping plates 406 on the top mold 4.
Referring to fig. 3 and 16, in this embodiment, one end of the base 1 is provided with a guide groove 105, one end of the guide groove 105 is connected with an end cover 106, a slide block 703 matched with the guide groove 105 is arranged at the lower part of the mounting plate 701, a third screw 711 is connected to the slide block 703 in a threaded manner, and one end of the third screw 711 penetrates through the end cover 106 and is connected with a second hand wheel 710; the second hand wheel 710 is rotated to adjust the position of the adjusting mechanism 7 on the base 1, so that when different bending angles are ensured, the busbar 5 is bent in place, and the bending precision of the busbar 5 is ensured.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.

Claims (6)

1. A transformer low-voltage side busbar flat-bending and vertical-bending integrated device comprises a base, rotating rollers, a hydraulic cylinder and a top die, wherein supporting legs are arranged at the lower part of the base, a cylinder base is arranged at one side of the upper part of the base, the hydraulic cylinder is arranged on the cylinder base, two groups of rotating rollers are symmetrically arranged at two sides of the hydraulic cylinder, the lower part of each rotating roller is movably arranged on the base through a rotating shaft, and limiting end plates are arranged at two ends of each rotating roller; the middle parts of two sides of the top die are respectively provided with an L-shaped clamping plate which is symmetrical up and down, one side of each L-shaped clamping plate is provided with a plurality of studs, the lower parts of two sides of the top die are respectively provided with a through hole, each stud penetrates through the through hole and is connected with an adjusting nut, a second clamping groove is formed between the two L-shaped clamping plates, and a bus bar is placed between the first clamping groove and the second clamping groove during vertical bending; a blocking mold is arranged on one side of the base and comprises a first blocking plate and a second blocking plate which are hinged with each other, hinged supports are arranged on one sides of the first blocking plate and the second blocking plate, an adjusting mechanism is arranged on one side of the blocking mold and comprises a mounting plate, a linkage plate and a connecting rod, the mounting plate is arranged on the base, a side plate is arranged on one side of the mounting plate, second support columns are arranged on two sides of the upper portion of the mounting plate, a second screw rod is movably connected to the middle of the linkage plate through a bearing, one end of the second screw rod penetrates through the side plate and is connected with a first hand wheel, sliding grooves are arranged on two sides of the linkage plate, one end of the connecting rod is movably connected with the sliding grooves through a pin shaft, the middle of the connecting rod is hinged with the second support columns, and the other end of the connecting rod is hinged with the hinged supports; the upper parts of the first baffle plate and the second baffle plate are respectively provided with a second adjusting groove, and the distance between the L-shaped clamp plates on the baffle mould is adjusted through the second adjusting grooves and is matched with the second clamping groove of the L-shaped clamp plate on the top mould; one end of the base is provided with a guide groove, one end of the guide groove is connected with an end cover, the lower part of the mounting plate is provided with a slide block matched with the guide groove, the slide block is in threaded connection with a third screw rod, and one end of the third screw rod penetrates through the end cover and is connected with a second hand wheel; the top die comprises a first top plate and a second top plate, one ends of the first top plate and the second top plate are hinged through a pin shaft, base plates are arranged on one sides of the first top plate and the second top plate, a plurality of rib plates are arranged on two sides of each base plate, one sides of the base plates on the two sides are connected with a scissor type support, each scissor type support is of a diamond structure formed by four connecting plates in a hinged mode, a U-shaped block is arranged at the front end of each scissor type support, and a connecting block is arranged at the rear end of each scissor type support; one end of a piston rod of the hydraulic cylinder is movably connected with a rotary table through a bearing, a plurality of first handles are arranged in the circumferential direction of the rotary table, a first screw rod is fixedly connected to the other side of the rotary table, the front end of the first screw rod is movably connected with a U-shaped block through a bearing, and the middle part of the first screw rod is in threaded connection with a connecting block; the rotating roller comprises a lower roller and an upper roller, the middle part of the lower roller is provided with an insertion hole, the upper roller is provided with an annular insertion plate matched with the insertion hole, the upper part of the rotating shaft is provided with threads, the upper roller is in threaded connection with the rotating shaft, and two rotary plates are symmetrically arranged on two sides of the upper part of the upper roller; first adjusting grooves are formed in the first top plate and the second top plate, and studs of the L-shaped clamping plates on the upper portions of the first top plate and the second top plate are installed in the first adjusting grooves.
2. The transformer low-voltage side busbar horizontal bending and vertical bending integrated device as claimed in claim 1, wherein a plurality of first support columns are arranged on two sides of the upper portion of the base, the upper end of a rotating shaft of the rotating roller extends out of a limiting end plate of the rotating roller, a cover plate is arranged on the upper portion of the rotating roller, mounting holes corresponding to the first support columns and the rotating shaft are formed in the cover plate, fastening nuts are arranged on the upper ends of the first support columns and the rotating shaft, the fastening nuts are butterfly nuts, and a second handle is arranged on the upper portion of the cover plate.
3. The device of claim 2, wherein the base is provided with a plurality of first adjusting holes symmetrically disposed on two sides of the cylinder base, and the cover plate is provided with a plurality of second adjusting holes corresponding to the first adjusting holes.
4. The flat-bending and vertical-bending integrated device for the low-voltage side busbar of the transformer as claimed in claim 1, wherein a containing groove is formed in the middle of the inserting plate, a spring is arranged in the containing groove, and the spring is sleeved outside the rotating shaft.
5. The device as claimed in claim 1, wherein rubber pads are disposed on the outer sides of the upper roller, the lower roller and the inserting plate.
6. The device of claim 5, wherein the scissor-type bracket is detachably connected with the backing plate through bolts, the backing plate is provided with a plurality of threaded holes, a connecting plate of the scissor-type bracket, which is in contact with the backing plate, is provided with a plurality of threaded holes corresponding to the threaded holes of the backing plate, the threaded holes are provided with bolts, and the scissor-type bracket is detachably fixed on the backing plate through the bolts.
CN202110320315.4A 2021-03-25 2021-03-25 Flat-bending and vertical-bending integrated device for low-voltage side busbar of transformer Active CN113020351B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200951443Y (en) * 2006-09-29 2007-09-26 北京天泽电力器材有限公司 Hydraulic row bender
CN101069912A (en) * 2007-01-31 2007-11-14 庄添财 Fully-automatic bent-pipe punching machine
CN201855858U (en) * 2010-09-26 2011-06-08 上海思源电力电容器有限公司 Multi-functional busbar bender
CN208555774U (en) * 2018-07-23 2019-03-01 青岛爱辉机械配件有限公司 A kind of refrigerator pipes apparatus for bending
WO2020140812A1 (en) * 2019-07-23 2020-07-09 山东科技大学 Automatic mining hydraulic support pin disassembly apparatus and use thereof
CN211464380U (en) * 2019-06-03 2020-09-11 贵州联尚科技有限公司 Metal plate bending device for LED lamp filament production
CN112405181A (en) * 2020-12-06 2021-02-26 刘冠 Linkage dust-proof plate arc edge and flat edge integrated polishing device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200951443Y (en) * 2006-09-29 2007-09-26 北京天泽电力器材有限公司 Hydraulic row bender
CN101069912A (en) * 2007-01-31 2007-11-14 庄添财 Fully-automatic bent-pipe punching machine
CN201855858U (en) * 2010-09-26 2011-06-08 上海思源电力电容器有限公司 Multi-functional busbar bender
CN208555774U (en) * 2018-07-23 2019-03-01 青岛爱辉机械配件有限公司 A kind of refrigerator pipes apparatus for bending
CN211464380U (en) * 2019-06-03 2020-09-11 贵州联尚科技有限公司 Metal plate bending device for LED lamp filament production
WO2020140812A1 (en) * 2019-07-23 2020-07-09 山东科技大学 Automatic mining hydraulic support pin disassembly apparatus and use thereof
CN112405181A (en) * 2020-12-06 2021-02-26 刘冠 Linkage dust-proof plate arc edge and flat edge integrated polishing device

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