CN107790944B - Welding fixture for main shaft crank arm of circuit breaker - Google Patents
Welding fixture for main shaft crank arm of circuit breaker Download PDFInfo
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- CN107790944B CN107790944B CN201711116136.9A CN201711116136A CN107790944B CN 107790944 B CN107790944 B CN 107790944B CN 201711116136 A CN201711116136 A CN 201711116136A CN 107790944 B CN107790944 B CN 107790944B
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- 238000003466 welding Methods 0.000 title claims abstract description 82
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008033 biological extinction Effects 0.000 description 2
- 230000014392 establishment of spindle localization Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
-
- 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
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a welding fixture for a main shaft crank arm of a circuit breaker, which comprises a supporting seat, wherein at least two crank arm positioning pieces which are used for being matched with the main shaft in a positioning way and positioning corresponding crank arms on the main shaft are arranged on the supporting seat, and each crank arm positioning piece comprises an axial positioning part which is used for being matched with the space between the corresponding crank arms on the main shaft and an angle positioning part which is used for being matched with the corresponding crank arms in a positioning way so as to keep relative angles between the crank arms. Through set up two at least crank arm locating pieces that are used for carrying out the location to the crank arm that corresponds on the main shaft on the supporting seat to set up on the crank arm locating piece be used for with the main shaft on the corresponding crank arm between interval matched axial location part and be used for with the crank arm that corresponds fix to cooperate so that the crank arm between keep relative angle's angle location part, guaranteed the crank arm and required position and the angle requirement when welding on the main shaft, reduced welding error.
Description
Technical Field
The utility model relates to a welding fixture for a main shaft crank arm of a circuit breaker.
Background
In the prior art, the vacuum circuit breaker is widely applied because the arc extinguishing medium and the insulating medium of the contact gap after arc extinction are high vacuum, and has the advantages of small volume, light weight, suitability for frequent operation, no maintenance for arc extinction and the like.
The mechanical characteristics of the vacuum circuit breaker enable the vacuum circuit breaker to work normally, and the mechanical characteristics are determined by an operating mechanism of the circuit breaker, wherein a main shaft of the vacuum circuit breaker plays an important transmission role in the operating process of the operating mechanism, as shown in fig. 1, three pairs of first crank arms 11, second crank arms 12 and third crank arms 13 are arranged on the main shaft 10, wherein the first crank arms 11 and the third crank arms 13 are formed by two crank arm sheets, the distances and included angles among the crank arms are required to be strictly consistent, otherwise, the assembly efficiency and the operating performance of the whole circuit breaker are affected, and in the prior art, the first crank arms 11 and the third crank arms 13 are also formed by one crank arm sheet. Aiming at the problems, the Chinese patent utility model with the authorized bulletin number of CN204117896U and the authorized bulletin day of 2015.01.21 discloses a welding fixture for an isolation spindle of a column switch, which consists of a base, a limiting crank positioning block, a pull rod crank positioning press block, an interlocking crank positioning block and a stop block, wherein the positioning block is formed by assembling a corresponding positioning seat and a positioning press block through a screw rod, a first limiting crank positioning seat, a first pull rod crank positioning seat, a second pull rod crank positioning seat, an interlocking crank positioning seat, a third pull rod crank positioning seat, a second limiting crank positioning seat and the stop block are sequentially welded on the base corresponding to the spindle, lower semicircular notches of the positioning seats and upper semicircular notches of the corresponding positioning press blocks are assembled into shaft holes, the first and second limiting crank positioning seats are provided with two cylindrical positioning pin holes I, the first and second and third pull rod crank positioning press blocks are provided with cylindrical positioning pin holes II, and the interlocking crank positioning seats and the interlocking crank positioning press blocks are respectively provided with square column pin holes. The welding fixture has higher requirements on the position relation of each positioning seat on the base, the positioning seats can not realize positioning of both sides of the crank arm, and the dimensional accuracy is not easy to guarantee; the installation and the disassembly of the main shaft are inconvenient, meanwhile, the spot welding position between the crank arm and the main shaft cannot be adjusted, the circumferential welding of the main shaft is inconvenient, and the welding quality is difficult to ensure.
Disclosure of Invention
The utility model aims to provide a welding fixture for a main shaft crank arm of a circuit breaker, which solves the problem that in the prior art, the welding fixture cannot position two sides of the crank arm, so that the dimensional accuracy of the distance between the crank arms is not easy to guarantee.
In order to achieve the above purpose, the first technical scheme of the welding fixture for the main shaft crank arm of the circuit breaker is as follows: the welding fixture for the crank arms of the circuit breaker main shaft comprises a supporting seat, wherein at least two crank arm positioning pieces which are used for being matched with the main shaft in a positioning way and positioning corresponding crank arms on the main shaft are arranged on the supporting seat, and each crank arm positioning piece comprises an axial positioning part which is matched with the space between the corresponding crank arms on the main shaft and an angle positioning part which is used for being matched with the corresponding crank arms in a positioning way so as to keep the relative angles between the crank arms; the crank arm positioning piece is assembled on the supporting seat in a guiding and sliding manner; the support seat comprises a support shaft, the crank arm positioning piece is assembled on the support shaft in a guiding and sliding manner, and the support shaft is in running fit with the crank arm positioning piece; the angle positioning part is provided with a positioning piece rotating hole in rotating fit with the support shaft, and the crank arm positioning piece is rotationally assembled on the support shaft through the positioning piece rotating hole; the crank arm positioning piece comprises a tile-shaped positioning plate which axially extends along the supporting shaft and is used for positioning and matching with the main shaft, an angle positioning seat which radially extends is arranged on the outer peripheral surface of the tile-shaped positioning plate, the tile-shaped positioning plate forms an axial positioning part, the angle positioning seat forms an angle positioning part, the positioning piece rotating hole is arranged on the angle positioning seat, the angle positioning seat is also provided with an angle positioning hole which is used for positioning and matching with a mounting hole of a corresponding crank arm so as to position and match with the crank arm angle, and the crank arm positioning piece is positioned and matched with the main shaft through the tile-shaped positioning plate; the angle positioning seat also comprises a positioning bolt and a nut matched with the positioning bolt, wherein the positioning bolt is used for enabling the angle positioning hole to be matched with the mounting hole of the crank arm in a positioning way. The crank arm locating piece is assembled on the supporting seat in a sliding way, so that the crank arm locating piece can be moved and detached, the crank arm locating piece is adjusted or replaced according to different crank arms on the main shaft, the supporting seat is in running fit with the crank arm locating piece, a worker can weld two matched side surfaces of the main shaft and the crank arm without changing positions in the welding process, the working efficiency is improved, the length of the angle locating part in the axial direction is shorter, and the locating piece rotating hole is formed in the angle locating part, so that materials can be reduced, and the cost is reduced; the main shaft and the crank arm ensure the required positioning angle through the positioning of the positioning bolt.
The second technical scheme of the welding tool for the main shaft crank arm of the circuit breaker is as follows: on the basis of the first technical scheme of the welding tool for the main shaft crank arm of the circuit breaker, the crank arm positioning pieces are arranged in pairs, the notch of the tile-shaped positioning plate of the same pair of crank arm positioning pieces is oppositely arranged to enclose a channel for the main shaft to pass through, and the angle positioning holes on the angle positioning seats of the same pair of crank arm positioning pieces are aligned so that the same pair of crank arm positioning pieces correspond to one crank arm. The crank arm locating pieces are arranged in pairs, so that the stability of the main shaft fixation can be ensured.
The third technical scheme of the welding tool for the main shaft crank arm of the circuit breaker is as follows: on the basis of the second technical scheme of the welding tool for the main shaft crank arm of the circuit breaker, the two angle positioning seats of the same pair of crank arm positioning pieces are mutually attached. The two angle positioning seats are mutually attached and processed conveniently, and are convenient to cooperate.
The fourth technical scheme of the welding tool for the main shaft crank arm of the circuit breaker is as follows: on the basis of any one of the first to third technical schemes of the welding fixture for the main shaft crank arm of the circuit breaker, the positioning bolt is sleeved with a spacer sleeve which is used for being placed between two crank arm pieces in the first crank arm to position the two crank arm pieces at a certain distance. The spacer bush prevents the overtightening of the bolt, and can influence the position precision of the two crank arm sheets.
The fifth technical scheme of the welding tool for the main shaft crank arm of the circuit breaker is as follows: on the basis of any one of the first to third technical schemes of the welding fixture for the main shaft crank arm of the circuit breaker, the crank arm locating piece used for locating and matching with the first crank arm of the main shaft is defined as a first crank arm locating piece, the crank arm locating piece used for locating and matching with the second crank arm of the main shaft is defined as a second crank arm locating piece, the crank arm locating piece used for locating and matching with the third crank arm of the main shaft is defined as a third crank arm locating piece, the number of the first crank arm locating pieces is three, the angle locating parts of the first crank arm locating pieces are straight plates, the first crank arm locating piece rotating holes are located at one end of the straight plate type angle locating parts, the first crank arm angle locating holes are located at the other end of the straight plate type angle locating parts, and the axial locating parts of the first crank arm locating pieces are located at the middle positions of the straight plate type angle locating parts; the angle positioning parts of the second crank arm positioning piece and the third crank arm positioning piece are angle-shaped, the second crank arm positioning piece rotating hole and the third crank arm positioning piece rotating hole are positioned at one end of the angle positioning part, the second crank arm angle positioning hole and the third crank arm angle positioning hole are positioned at the other end of the angle positioning part, and the second crank arm axial positioning part and the third crank arm axial positioning part are positioned at the corner positions of the angle positioning part. Through setting up multiunit turning arm setting element to make this welding frock can weld different turning arms on the circuit breaker main shaft, with the requirement of adapting to operating device in the circuit breaker.
The sixth technical scheme of the welding tool for the main shaft crank arm of the circuit breaker is as follows: on the basis of any one of the first to third technical schemes of the welding fixture for the main shaft crank arm of the circuit breaker, the welding fixture further comprises a crank arm piece locating piece sleeved on the main shaft and used for being placed between two crank arm pieces to locate the two crank arm pieces at intervals. The crank arm sheet positioning piece ensures the distance precision between the two crank arm sheets of the first crank arm on the main shaft when the first crank arm is composed of the two crank arm sheets.
The seventh technical scheme of the welding tool for the main shaft crank arm of the circuit breaker is as follows: on the basis of a sixth technical scheme of the welding tool for the main shaft crank arm of the circuit breaker, the crank arm piece positioning piece is a clamp type and comprises a first clamp and a second clamp, one ends of the first clamp and the second clamp are hinged, and the other ends of the first clamp and the second clamp are fixed through a fastening structure. The crank arm piece locating piece is a clamp type, is convenient to fix and detach, and improves working efficiency.
The eighth technical scheme of the welding tool for the main shaft crank arm of the circuit breaker is as follows: on the basis of any one of the first to third technical schemes of the welding fixture for the main shaft crank arm of the circuit breaker, the axial positioning part and the angle positioning part are of an integrated structure. The axial positioning part and the angle positioning part of the crank arm positioning piece are of an integrated structure, and compared with a split type structure, the positioning precision is further improved.
The ninth technical scheme of the welding tool for the main shaft crank arm of the circuit breaker is as follows: on the basis of any one of the first to third technical schemes of the welding fixture for the main shaft crank arm of the circuit breaker, one end of the axial positioning part, which is far away from the angle positioning part, is provided with an opening for welding the crank arm and the main shaft together. The opening facilitates spot welding the spindle and the crank arm together.
The tenth technical scheme of the welding tool for the main shaft crank arm of the circuit breaker is as follows: on the basis of the ninth technical scheme of the welding tool for the main shaft crank arm of the circuit breaker, the number of the openings is at least two. The number of the openings is at least two, so that the number of the spot welding positions of the main shaft and the crank arm is increased, and the stability of welding on the welding tool is improved.
The eleventh technical scheme of the welding tool for the main shaft crank arm of the circuit breaker is as follows: on the basis of any one of the first to third technical schemes of the welding fixture for the main shaft crank arm of the circuit breaker, the axial positioning part is provided with a main shaft positioning structure for positioning and matching with the main shaft so that the crank arm positioning piece is positioned and matched with the main shaft through the axial positioning part.
The beneficial effects of the utility model are as follows: through set up two at least crank arm locating pieces that are used for carrying out the location to the crank arm that corresponds on the main shaft on the supporting seat to set up on the crank arm locating piece be used for with the main shaft on the corresponding crank arm between interval matched axial location part and be used for with the crank arm that corresponds fix to cooperate so that the crank arm between keep relative angle's angle location part, guaranteed the crank arm and required position and the angle requirement when welding on the main shaft, reduced welding error.
Drawings
Fig. 1 is a schematic diagram of the result of a prior art circuit breaker spindle;
fig. 2 is a schematic structural diagram of a welding fixture for a main shaft crank arm of a circuit breaker according to the present utility model;
FIG. 3 is a schematic view of the welding fixture of FIG. 2 without a support base;
fig. 4 is a schematic structural view of a first lever positioning member of the main shaft lever welding tool of the circuit breaker;
FIG. 5 is a schematic view of the first lever arm positioner of FIG. 4 from another perspective;
fig. 6 is a schematic structural diagram of a second lever positioning member of the breaker spindle lever welding tool of the present utility model;
FIG. 7 is a schematic view of the second lever arm positioner of FIG. 6 from another perspective;
fig. 8 is a schematic structural view of a third lever positioning member of the breaker spindle lever welding tool of the present utility model;
FIG. 9 is a schematic view of the third lever arm positioner of FIG. 8 from another perspective;
fig. 10 is a schematic structural view of a fourth lever positioning member of the breaker spindle lever welding tool of the present utility model;
FIG. 11 is a schematic view of the fourth lever arm positioner of FIG. 10 from another perspective;
fig. 12 is a schematic structural view of a support base of the welding fixture for the main shaft crank arm of the circuit breaker.
Detailed Description
Embodiments of the present utility model will be further described with reference to the accompanying drawings.
In a specific embodiment of the welding fixture for the crank arms of the main shaft of the circuit breaker, as shown in fig. 2, the welding fixture for the crank arms of the main shaft of the circuit breaker comprises a supporting seat, wherein a crank arm positioning piece which is used for being matched with the main shaft in a positioning way and positioning corresponding crank arms on the main shaft 10 is arranged on the supporting seat, and the crank arm positioning piece comprises an axial positioning part which is used for being matched with the space between the corresponding crank arms on the main shaft 10 and an angle positioning part which is used for being matched with the corresponding crank arms in a positioning way so as to keep relative angles between the crank arms.
In this embodiment, taking the first lever positioning piece 2 as an example, the first lever positioning piece 2 includes a tile-shaped positioning plate that supports the axial extension and is used for positioning and matching with the spindle, an angle positioning seat that extends along the radial direction is provided on the outer peripheral surface of the tile-shaped positioning plate, the inner wall surface of the tile-shaped positioning plate forms a spindle positioning structure that is used for positioning and matching with the spindle, the tile-shaped positioning plate forms a first lever axial positioning portion 22, the angle positioning seat forms a first lever angle positioning portion 24, a positioning piece rotating hole 21 is provided on the angle positioning seat, an angle positioning hole that is used for positioning and matching with a corresponding mounting hole of the lever to position the lever angle is further provided on the angle positioning seat, and the lever positioning piece is matched with the spindle positioning 23 through the tile-shaped positioning plate; the first crank arm positioning pieces 2 are arranged in pairs, so that the stability of fixing the spindle 10 can be ensured, the notch of the tile-shaped positioning plate of the same pair of first crank arm positioning pieces 2 is relatively arranged to enclose a channel for the spindle 10 to pass through, and the angle positioning holes 23 on the angle positioning seats of the same pair of first crank arm positioning pieces 2 are aligned to enable the same pair of first crank arm positioning pieces 2 to correspond to one first crank arm, wherein the two angle positioning seats of the same pair of first crank arm positioning pieces 2 are mutually attached, and in other embodiments, the two angle positioning seats of the same pair of first crank arm positioning pieces 2 can be arranged at intervals.
In this embodiment, the angular positioning seat of the first lever positioning piece 2 further includes a positioning bolt 7 for positioning and matching the angular positioning hole 23 and the mounting hole of the first lever 11, and a nut 9 matched with the positioning bolt 7, and the positioning of the positioning bolt 7 ensures a required positioning angle between the main shaft 10 and the first lever 11, and in other embodiments, the angular positioning hole 23 and the mounting hole of the first lever 11 may also be positioned by a positioning pin; the spacer bush 8 used for being placed between the two crank arm pieces in the first crank arm 11 to position the two crank arm pieces is sleeved on the positioning bolt 7, the spacer bush 8 prevents the tightening of the positioning bolt 7 caused by human eye errors of staff, the position accuracy of the two crank arm pieces can be influenced, and in other embodiments, the spacer bush 8 is not required to be arranged.
In this embodiment, the support base includes a base 14 and a support shaft 1 vertically installed on the base 14, the support base forms a vertical welding tool, the first crank arm positioning member 2 is assembled on the support shaft 1 in a guiding and sliding manner, the support shaft 1 is in running fit with the first crank arm positioning member 2, in other embodiments, the distance between the crank arm positioning members can be adjusted in advance according to the structure of the main shaft 10 to be welded and each crank arm, so that each crank arm positioning member cannot slide on the support shaft 1 and can only rotate on the support shaft 1; the first lever angle positioning portion 24 of the first lever positioning member 2 is provided with a positioning member rotation hole 21 that is in rotation fit with the support shaft 1, and the first lever positioning member 2 is rotatably assembled on the support shaft 1 through the positioning member rotation hole 21, in other embodiments, the positioning member rotation hole 21 may be provided on the first lever axial positioning portion 22 instead of the first lever angle positioning portion 24.
In this embodiment, the axial positioning portion and the angular positioning portion are integrally formed, and in other embodiments, the axial positioning portion and the angular positioning portion may be separately formed.
In this embodiment, the lever positioning piece for positioning and matching with the first lever 11 of the spindle 10 is a first lever positioning piece 2, the lever positioning piece for positioning and matching with the second lever 12 of the spindle 10 is a second lever positioning piece 3, the lever positioning piece for positioning and matching with the third lever 13 of the spindle 10 is a third lever positioning piece 5, and the number of the first lever positioning pieces 2 is three; the angle positioning part 24 of the first crank arm positioning piece 2 is in a straight plate shape, the first crank arm positioning piece rotating hole 21 is positioned at one end of the straight plate type angle positioning part 24, the first crank arm angle positioning hole 23 is positioned at the other end of the straight plate type angle positioning part 24, and the first crank arm axial positioning part 22 is positioned at the middle position of the straight plate type angle positioning part 24; the angle positioning part 34 of the second crank arm positioning piece 3 is in an angle shape, the second crank arm positioning piece rotating hole 31 is positioned at one end of the angle positioning part 34, the second crank arm angle positioning hole 33 is positioned at the other end of the angle positioning part 34, and the second crank arm axial positioning part 32 is positioned at the corner position of the angle positioning part 34 and is perpendicular to the angle positioning part 34; the angle positioning portion 54 of the third lever positioning member 5 is of an angle shape, the third lever positioning member rotating hole 51 is located at one end of the angle positioning portion 54 of the angle shape, the third lever angle positioning hole 53 is located at the other end of the angle positioning portion 54 of the angle shape, the third lever axial positioning portion 52 is located at a corner position of the angle positioning portion 54 of the angle shape and perpendicular to the angle positioning portion 54 of the angle shape, and in other embodiments, the number and shape of the lever positioning members can be adjusted according to the number and shape of the levers welded on the main shaft 10.
In this embodiment, the welding fixture further includes a lever piece positioning member 4 sleeved on the spindle 10 and used for being placed between two lever pieces in the first lever 11 to position the two lever pieces, and in other embodiments, if the first lever 11 and the third lever 13 are formed by one lever piece, the lever piece positioning member 4 is not needed; the crank arm piece locating piece 4 is a clamp type, and comprises a first clamp 41 and a second clamp 42, one ends of the first clamp 41 and the second clamp 42 are hinged, the other ends of the first clamp 41 and the second clamp 42 are fixed in a matched mode through a fastening bolt 6 and a nut, the fastening bolt 6 and the nut form a fastening device, and in other embodiments, the crank arm piece locating piece 4 can be fixed through fastening devices such as a buckle.
In this embodiment, the one end of each crank arm locating part, which is far away from the angle locating part, is provided with the opening 15 for welding the crank arms and the main shaft together, the opening 15 performs spot welding on the main shaft 10 and each crank arm after the main shaft 10 and each crank arm are fixed by the tool, then the main shaft 10 and each crank arm which is fixed together after spot welding with the main shaft 10 are detached from the welding tool for integral welding, so that the welding efficiency is improved, the number of the openings 15 is two, and the stability of the welding of the main shaft and the crank arms on the welding tool is increased.
During welding, the first crank arm positioning piece 2, the second crank arm positioning piece 3 and the third crank arm positioning piece 5 are firstly installed on the support shaft 1 according to corresponding crank arm structures, then the first crank arm 11, the second crank arm 12 and the third crank arm 13 are placed between the two matched crank arm positioning pieces, the crank arm piece positioning piece 4 is placed between the two first crank arm 11, finally the main shaft 10 is penetrated, the crank arm positioning pieces and the corresponding crank arms are fixed together through the positioning bolts 7, the spacer bush 8 and the nuts 9, and the crank arm piece positioning pieces 4 are fastened on the main shaft 10 through the fastening bolts 6 to realize positioning of the first crank arms; after the fixing is finished, the crank arm and the main shaft 10 can be welded together at the opening 15 of the crank arm locating piece through spot welding, the welding of the position of the crank arm is convenient and quick, and the welding efficiency and quality are greatly improved.
In other embodiments, the crank arm positioning piece is fixed on the supporting seat, the crank arm positioning piece is not arranged in half, and the axial positioning part of the crank arm positioning piece is of a semicircular structure; in other embodiments, a corresponding number of lever positioners may be provided according to the number of levers on the spindle; in other embodiments, the angular positioning portion of the lever positioning member may also be in a circular arc shape adapted to the shape of the lever; in other embodiments, the fourth lever positioning piece may be made into a thin cylindrical shape, and directly welded between the two levers of the first lever, or the two levers of the first lever are welded together in advance; in other embodiments, the welding fixture may be horizontally disposed.
Claims (11)
1. Welding frock of circuit breaker main shaft turning arm, including the supporting seat, its characterized in that: the support seat is provided with at least two crank arm positioning pieces which are used for being matched with the main shaft in a positioning way and positioning corresponding crank arms on the main shaft, and each crank arm positioning piece comprises an axial positioning part which is used for being matched with the space between the corresponding crank arms on the main shaft and an angle positioning part which is used for being matched with the corresponding crank arms in a positioning way so as to keep the relative angles between the crank arms;
the crank arm positioning piece is assembled on the supporting seat in a guiding and sliding manner;
the support seat comprises a support shaft, the crank arm positioning piece is assembled on the support shaft in a guiding and sliding manner, and the support shaft is in running fit with the crank arm positioning piece;
the angle positioning part is provided with a positioning piece rotating hole in rotating fit with the support shaft, and the crank arm positioning piece is rotationally assembled on the support shaft through the positioning piece rotating hole; the crank arm positioning piece comprises a tile-shaped positioning plate which axially extends along the supporting shaft and is used for positioning and matching with the main shaft, an angle positioning seat which radially extends is arranged on the outer peripheral surface of the tile-shaped positioning plate, the tile-shaped positioning plate forms an axial positioning part, the angle positioning seat forms an angle positioning part, the positioning piece rotating hole is arranged on the angle positioning seat, the angle positioning seat is also provided with an angle positioning hole which is used for positioning and matching with a mounting hole of a corresponding crank arm so as to position and match with the crank arm angle, and the crank arm positioning piece is positioned and matched with the main shaft through the tile-shaped positioning plate; the angle positioning seat also comprises a positioning bolt and a nut matched with the positioning bolt, wherein the positioning bolt is used for enabling the angle positioning hole to be matched with the mounting hole of the crank arm in a positioning way.
2. The welding fixture for a main shaft lever of a circuit breaker according to claim 1, wherein: the crank arm locating pieces are arranged in pairs, the notch of the tile groove on the tile-shaped locating plate of the same pair of crank arm locating pieces is oppositely arranged to enclose a channel for the spindle to pass through, and the angle locating holes on the angle locating seats of the same pair of crank arm locating pieces are aligned so that the same pair of crank arm locating pieces corresponds to one crank arm.
3. The welding fixture for the main shaft crank arm of the circuit breaker according to claim 2, wherein: the two angle positioning seats of the same pair of crank arm positioning pieces are mutually attached.
4. A welding fixture for a main shaft lever of a circuit breaker according to any one of claims 1-3, characterized in that: and a spacer bush used for being placed between the two crank arm sheets in the first crank arm to position the two crank arm sheets at intervals is sleeved on the positioning bolt.
5. A welding fixture for a main shaft lever of a circuit breaker according to any one of claims 1-3, characterized in that: the method comprises the steps that a first crank arm locating piece used for locating and matching with a first crank arm of a main shaft is defined to be a first crank arm locating piece, a second crank arm locating piece used for locating and matching with a second crank arm of the main shaft is defined to be a third crank arm locating piece used for locating and matching with a third crank arm of the main shaft, the number of the first crank arm locating pieces is three, the angle locating part of the first crank arm locating piece is in a straight plate shape, a first crank arm locating piece rotating hole is located at one end of the angle locating part in the straight plate shape, a first crank arm angle locating hole is located at the other end of the angle locating part in the straight plate shape, and an axial locating part of the first crank arm locating piece is located at the middle position of the angle locating part in the straight plate shape; the angle positioning parts of the second crank arm positioning piece and the third crank arm positioning piece are angle-shaped, the second crank arm positioning piece rotating hole and the third crank arm positioning piece rotating hole are positioned at one end of the angle positioning part, the second crank arm angle positioning hole and the third crank arm angle positioning hole are positioned at the other end of the angle positioning part, and the second crank arm axial positioning part and the third crank arm axial positioning part are positioned at the corner positions of the angle positioning part.
6. A welding fixture for a main shaft lever of a circuit breaker according to any one of claims 1-3, characterized in that: the welding tool further comprises a crank arm piece locating piece which is sleeved on the main shaft and used for being placed between the two crank arm pieces to locate the two crank arm pieces at a certain distance.
7. The welding fixture for the main shaft crank arm of the circuit breaker according to claim 6, wherein: the crank arm piece locating piece is a clamp type and comprises a first clamp and a second clamp, one ends of the first clamp and the second clamp are hinged, and the other ends of the first clamp and the second clamp are fixed through a fastening structure.
8. A welding fixture for a main shaft lever of a circuit breaker according to any one of claims 1-3, characterized in that: the axial positioning part and the angle positioning part are of an integrated structure.
9. A welding fixture for a main shaft lever of a circuit breaker according to any one of claims 1-3, characterized in that: and one end of the axial positioning part, which is far away from the angle positioning part, is provided with an opening for welding the crank arm and the main shaft together.
10. The welding fixture for the main shaft crank arm of the circuit breaker according to claim 9, wherein: the number of the openings is at least two.
11. A welding fixture for a main shaft lever of a circuit breaker according to any one of claims 1-3, characterized in that: the axial positioning part is provided with a main shaft positioning structure which is used for being matched with the main shaft in a positioning way so that the crank arm positioning piece is matched with the main shaft in a positioning way through the axial positioning part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711116136.9A CN107790944B (en) | 2017-11-13 | 2017-11-13 | Welding fixture for main shaft crank arm of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711116136.9A CN107790944B (en) | 2017-11-13 | 2017-11-13 | Welding fixture for main shaft crank arm of circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107790944A CN107790944A (en) | 2018-03-13 |
| CN107790944B true CN107790944B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711116136.9A Active CN107790944B (en) | 2017-11-13 | 2017-11-13 | Welding fixture for main shaft crank arm of circuit breaker |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831737B (en) * | 2018-07-02 | 2024-01-19 | 河南森源电气股份有限公司 | Transformer wire winding location frock |
| CN110900066B (en) * | 2019-10-31 | 2021-12-21 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Welding method for complex workpiece |
| CN112611346A (en) * | 2020-12-11 | 2021-04-06 | 广西电网有限责任公司桂林供电局 | Positioning special tool for energy storage shaft of Siemens mechanism |
| CN113327822A (en) * | 2021-06-28 | 2021-08-31 | 中国人民解放军海军工程大学 | Indoor circuit breaker and transmission part fixing device |
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| CN207414685U (en) * | 2017-11-13 | 2018-05-29 | 河南森源电气股份有限公司 | A kind of welding tooling of breaker main shaft connecting lever |
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| CN201645186U (en) * | 2010-03-26 | 2010-11-24 | 河南平高电气股份有限公司 | Transmission shaft and crankarm barrel mounting tool |
| CN202977216U (en) * | 2012-12-28 | 2013-06-05 | 常熟开关制造有限公司(原常熟开关厂） | Installation structure of automatic transfer switch main shaft |
| CN203644653U (en) * | 2013-09-02 | 2014-06-11 | 新疆特变电工自控设备有限公司 | Welding main shaft for vacuum circuit breaker |
| CN103506797A (en) * | 2013-10-09 | 2014-01-15 | 浙江正泰电器股份有限公司 | Rotating shaft welding jig, rotating shaft welding worktable and automatic rotating shaft welding system |
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| CN205684956U (en) * | 2016-06-12 | 2016-11-16 | 浙江吉鑫祥叉车制造有限公司 | A kind of cylinder support detent mechanism |
| CN205764636U (en) * | 2016-06-15 | 2016-12-07 | 合肥宽信机电有限公司 | A kind of straw pulverizer tool rest welding tooling |
| CN206200606U (en) * | 2016-08-11 | 2017-05-31 | 宁波圣龙浦洛西凸轮轴有限公司 | Camshaft plane processing tool |
| CN206564229U (en) * | 2017-03-20 | 2017-10-17 | 泰豪科技股份有限公司 | Breaker rotating axis component assembly tooling |
| CN207414685U (en) * | 2017-11-13 | 2018-05-29 | 河南森源电气股份有限公司 | A kind of welding tooling of breaker main shaft connecting lever |
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|---|---|
| CN107790944A (en) | 2018-03-13 |
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