CN212495929U - Special resistance spot welding tool based on rotor punching sheet group - Google Patents
Special resistance spot welding tool based on rotor punching sheet group Download PDFInfo
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- CN212495929U CN212495929U CN202021317401.7U CN202021317401U CN212495929U CN 212495929 U CN212495929 U CN 212495929U CN 202021317401 U CN202021317401 U CN 202021317401U CN 212495929 U CN212495929 U CN 212495929U
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- punching sheet
- positioning
- spot welding
- disc
- rotor punching
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Abstract
The utility model provides a special tool for resistance spot welding based on a rotor punching sheet group, which comprises a special tool for resistance spot welding based on a rotor punching sheet group, and a tool frame; a rotating shaft is rotatably arranged in the middle of the top of the tool rack, and a bearing is fixedly arranged outside the rotating shaft in an interference fit manner; the outer end of the bearing is rotatably provided with a positioning disc in an interference fit manner; the centering disc is accurately positioned through six groups of alloy die steel centering blocks with high hardness, once abrasion occurs, adjustment is immediately carried out to ensure accurate positioning of the shaft hole, and double positioning is realized through the vent hole positioning blocks; ensure that the punching sheet does not have any spacious action and rotation, greatly increased rotor punching sheet's stability and spot welding precision.
Description
Technical Field
The utility model belongs to the technical field of the fixed-position welding, more specifically say, in particular to special frock of resistance spot welding based on rotor punching sheet group.
Background
The rotor of the permanent magnet generator generally comprises a rotating shaft, an iron core, a supporting ring group, a stop block and the like, wherein the iron core is formed by overlapping and combining a plurality of rotor punching sheets of punching sheet groups at two ends, a punching plate and a punching plate with ventilation slots, a shaft hole matched with the rotating shaft is formed in the center of a body of the punching sheet, and the resistance spot welding rotor punching sheet group is a process of overlapping and welding a plurality of punching sheets into a whole and needs to be fixed by a tool for welding, so that the punching sheets are orderly integrated.
Based on the above, the punching sheets are spot-welded together to form a whole, the size of the punching sheet is completely the same as that of a single punching sheet, when a general resistance spot welding punching sheet group is used, the punching sheets bear current, pressure and high temperature, so that a plurality of punching sheets are consistent in groove shape and orderly and are welded into a whole, the working precision of a general tool is insufficient, the phenomenon of spaciousness is easy to occur, and the punching sheet groups are uneven.
In view of the above, research and improvement are made on the existing structure and defects, and a tool dedicated to resistance spot welding based on a rotor punching sheet set is provided in order to achieve the purpose of higher practical value.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a special frock of resistance spot welding based on rotor punching sheet group to the punching sheet spot welding that proposes in solving above-mentioned background art becomes integrative together, will guarantee to be the same totally with sola punching sheet size, during general resistance spot welding punching sheet group, bear electric current, pressure, high temperature make many punching sheet cell types unanimous, orderly fusion welding become integrative, the work precision of general frock takes place spacious phenomenon, the uneven problem of punching sheet group easily inadequately.
The utility model discloses purpose and efficiency of special frock of resistance spot welding based on rotor punching sheet group are reached by following specific technological means:
the special tool for resistance spot welding based on the rotor punching sheet group comprises a tool frame; a rotating shaft is rotatably arranged in the middle of the top of the tool rack, and a bearing is fixedly arranged outside the rotating shaft in an interference fit manner; the outer end of the bearing is rotatably provided with a positioning disc through interference fit.
Furthermore, a centering disc is integrally arranged in the middle of the top of the positioning disc, and the height of the centering disc is 9 mm; the diameter of the centering disc is 235mm, six groups of milling grooves are formed in the periphery of the centering disc, the milling grooves are 0.5-1mm lower than the top surface of the positioning disc, and accurate positioning blocks with the diameters of 6 shaft holes can be conveniently installed; the diameter of the positioning disc is 450 mm.
Furthermore, one side top integral type of positioning disk is provided with the ventilation hole locating piece, and the ventilation hole locating piece is fan-shaped structure, and the centre of a circle of ventilation hole locating piece is unanimous with the centre of a circle of positioning disk.
Furthermore, high-hardness alloy die steel core fixing blocks are fixedly arranged in the milling grooves through bolts.
Furthermore, the middle part of positioning disk is package assembly, and the centre of positioning disk is fixed in the outside of pivot through the key-type connection, and the middle part of positioning disk is fixed through bolt and outside portion and is carried out the integral type and be connected, can make the punching piece group firm, not have the spacious tooth portion of carrying out rotatory spot welding of moving.
Compared with the prior art, the utility model discloses following beneficial effect has:
the centering disc is fixed the core piece through six very high alloy die steel of group hardness and is fixed the accurate location of punch piece group shaft hole, in case take place wearing and tearing, adjusts the accurate location in assurance shaft hole immediately, does not have the spacious motion of nothing, and very big degree has increased the stability and the assembly precision of rotor punching.
Because the shaft hole has no key, the punching sheet is not spacious but can rotate, and the rotor punching sheet is positioned by the vent positioning block to be fixed; the punching sheet group is an integral punching sheet group which is neither spacious nor can rotate a little.
A bearing is arranged at the center to enable the punching sheet group fixed into a whole to be capable of freely rotating to carry out resistance spot welding on a spot welding machine, and the punching sheet group is neat, firm, reliable and accurate in positioning; when the iron core is laminated, the stress is borne, and the stress is firmly and reliably borne by the end plate; the quality of the iron core is ensured.
Drawings
Fig. 1 is a schematic top view of the present invention.
Fig. 2 is a schematic view of the structure of the present invention.
Fig. 3 is a schematic bottom view of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. the fixture comprises a fixture frame, 2, a rotating shaft, 3, a bearing, 4, a positioning disc, 401, a centering disc, 402, a milling groove (shaft hole positioning block), 403 and a vent hole positioning block.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically coupled, may be directly coupled, or may be indirectly coupled through an intermediary. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 3:
the utility model provides a special tool for resistance spot welding based on a rotor punching sheet group, which comprises a tool frame 1; a rotating shaft 2 is rotatably arranged in the middle of the top of the tool rack 1, and a bearing 3 is fixedly arranged outside the rotating shaft 2 in an interference fit manner; the outer end of the bearing 3 is rotatably provided with a positioning disc 4 in interference fit; wherein, the middle of the top of the positioning plate 4 is integrally provided with a centering plate 401, and the height of the centering plate 401 is 9 mm; the diameter of the centering disc 401 is 235mm, six groups of milling grooves 402 are formed in the periphery of the centering disc 401, the milling grooves 402 are 0.5-1mm lower than the top surface of the positioning disc 4, and 6 shaft hole positioning blocks are installed; the diameter of the positioning plate 4 is 450 mm; wherein, one side top integral type of positioning disk 4 is provided with ventilation hole locating piece 403, and ventilation hole locating piece 403 is fan-shaped structure, and the centre of a circle of ventilation hole locating piece 403 is unanimous with the centre of a circle of positioning disk 4.
Wherein, all through the bolt fastening be provided with high rigidity alloy die steel core piece in the milling flutes 402.
Wherein, the middle part of positioning disk 4 is package assembly, and the centre of positioning disk 4 is fixed in the outside of pivot 2 through the key-type connection, and the bolt that passes through of positioning disk 4 middle part is fixed with the outside part and is carried out the integral type and be connected, can make the piece of punching firm, the tooth portion rotation spot welding that does not have spacious action carries on.
The specific use mode and function of the embodiment are as follows:
in the utility model, a set of positioning disk 4 is rotatably arranged at the top of the tool frame 1 by using a rotating shaft 2 and a bearing 3, a centering disk 401 is used to tightly fix the shaft hole of the rotor punching sheet on the positioning disk 4, and then a plurality of rotor punching sheets are firmly, reliably, accurately, tidily and consistently integrated into a whole by a ventilation hole positioning block 403; then, carrying out resistance spot welding, wherein each tooth is welded with 2 points; and spot welding the 5 punching sheets into a firm and orderly punching sheet group just like a single punching sheet.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (5)
1. Special frock of resistance spot welding based on rotor punching sheet group, its characterized in that includes: a tool rack (1); a rotating shaft (2) is rotatably arranged in the middle of the top of the tool rack (1), and a bearing (3) is fixedly arranged outside the rotating shaft (2) in an interference fit manner; the outer end of the bearing (3) is rotatably provided with a positioning disc (4) through interference fit.
2. The special tool for resistance spot welding based on the rotor punching sheet set according to claim 1, characterized in that: a centering disc (401) is integrally arranged in the middle of the top of the positioning disc (4), and the height of the centering disc (401) is 9 mm; the diameter of the centering disc (401) is 235mm, six groups of milling grooves (402) are formed in the periphery of the centering disc (401), and the milling grooves (402) are 0.5-1mm lower than the top surface of the positioning disc (4); the accurate positioning blocks with the diameters of 6 shaft holes are convenient to mount; the diameter of the positioning disc (4) is 450 mm.
3. The special tool for resistance spot welding based on the rotor punching sheet set according to claim 1, characterized in that: a vent hole positioning block (403) is integrally arranged at the top of one side of the positioning disc (4), the vent hole positioning block (403) is of a fan-shaped structure, and the circle center of the vent hole positioning block (403) is consistent with that of the positioning disc (4); the accurate positioning and no spacious movement of the punching sheet in the rotation are ensured.
4. The special tool for resistance spot welding based on the rotor punching sheet set according to claim 2, wherein: and high-hardness alloy die steel fixed core blocks are fixedly arranged in the milling grooves (402) through bolts.
5. The special tool for resistance spot welding based on the rotor punching sheet set according to claim 1, characterized in that: the middle part of the positioning disc (4) is of an assembly structure, the middle of the positioning disc (4) is fixed outside the rotating shaft (2) through a key connection, and the middle part of the positioning disc (4) is fixed with the outer side part through a bolt to be connected integrally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021317401.7U CN212495929U (en) | 2020-07-08 | 2020-07-08 | Special resistance spot welding tool based on rotor punching sheet group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021317401.7U CN212495929U (en) | 2020-07-08 | 2020-07-08 | Special resistance spot welding tool based on rotor punching sheet group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212495929U true CN212495929U (en) | 2021-02-09 |
Family
ID=74436267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021317401.7U Active CN212495929U (en) | 2020-07-08 | 2020-07-08 | Special resistance spot welding tool based on rotor punching sheet group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212495929U (en) |
-
2020
- 2020-07-08 CN CN202021317401.7U patent/CN212495929U/en active Active
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