CN215941975U - Motor rotor welding tool - Google Patents
Motor rotor welding tool Download PDFInfo
- Publication number
- CN215941975U CN215941975U CN202122469683.3U CN202122469683U CN215941975U CN 215941975 U CN215941975 U CN 215941975U CN 202122469683 U CN202122469683 U CN 202122469683U CN 215941975 U CN215941975 U CN 215941975U
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- copper
- rotor
- rotor lamination
- copper bar
- welding
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Abstract
The utility model relates to the technical field of assembly welding of a motor rotor, in particular to a motor rotor welding tool, which comprises a screw, a copper block inner sleeve and a pressing block, wherein the screw penetrates through a rotor lamination and extends to two ends of the rotor lamination; the copper block inner sleeve is provided with two screw rods which are correspondingly sleeved on two ends of the rotor lamination, and the outer edge of the copper block inner sleeve is abutted and matched with the inner side of the copper block at the end part; the pressing blocks are provided with two screws which are correspondingly sleeved on two ends of the rotor lamination, ring grooves are formed in the end faces of the inner sides of the two pressing blocks for the suspension ends of the copper bar conductors to be inserted into, and nuts and washers are arranged on the end faces of the outer sides of the pressing blocks to be matched with each other to lock and position the pressing blocks, the copper bar conductors and the end copper blocks at two ends of the rotor lamination; the welding tool provided by the utility model ensures the assembly process requirements of the rotor lamination, the copper bar conductor and the end copper block; in the process of welding the rotor lamination, the copper bar conductor and the end copper block into the rotor winding, the position relation among the rotor lamination, the copper bar conductor and the end copper block can be ensured, and the welding precision and the welding strength of the rotor winding are ensured.
Description
Technical Field
The utility model relates to the technical field of motor rotor assembling and welding, in particular to a motor rotor welding tool.
Background
The rotor is a rotating part of the motor and comprises a rotor iron core, a rotor winding, a rotating shaft and the like, wherein the rotor winding can cut a stator magnetic field, induced electromotive force and current are generated, and the rotor is forced to rotate under the action of the rotating magnetic field. The rotor may be classified into a squirrel cage rotor and a wound rotor according to the construction.
The common structure of the squirrel-cage rotor is that conductors are coated in an insulating way to be used as cage bars to be embedded and pressed into a rotor iron core groove and a copper end ring groove, two ends of the conductors are welded with the copper end ring into a whole, and then a rotating shaft is pressed into the rotor to form a copper bar squirrel-cage rotor material, wherein the conductors are made of copper strips (circular, rectangular, wedge-shaped and the like); a hard brass plate for an end ring, and the like. However, in the prior art, due to the lack of reliable tooling, the end faces of the conductors cannot be guaranteed to be on the same plane, the reliability of welding between the end faces and the copper end rings is poor, and the complex working conditions such as thermal stress, electromagnetic force and centrifugal force when the rotor works cannot be adapted to.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model aims to provide a motor rotor welding tool, which can ensure the relative position requirements of a rotor lamination, a copper bar conductor and an end copper block and reliably ensure the welding process requirements of the rotor lamination, the copper bar conductor and the end copper block.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides an electric motor rotor welding frock for the assembly welding of rotor lamination, copper bar conductor and tip copper billet, the welding frock includes:
a screw passing through the rotor lamination and extending to both ends thereof;
the copper block inner sleeves are provided with two screw rods which are correspondingly sleeved at two ends of the rotor lamination, and the outer edges of the copper block inner sleeves are abutted and matched with the inner sides of the copper blocks at the end parts;
two pressing blocks are arranged and correspondingly sleeved on the screw rods at the two ends of the rotor lamination, and annular grooves are formed in the end faces of the inner sides of the two pressing blocks and used for inserting the suspension ends of the copper bar conductors;
and nuts and washers are arranged on the end faces of the outer sides of the two pressing blocks and are matched with the nuts to lock and position the pressing blocks, the copper bar conductors and the end copper blocks at the two ends of the rotor lamination.
In a further technical scheme, the width of the ring groove is matched with that of the copper bar conductor, and an opening structure is arranged at the notch of the ring groove.
Compared with the prior art, the utility model has the following technical effects:
according to the motor rotor welding tool, the inner sides of the end copper blocks clamped between the adjacent copper bar conductors are aligned through the copper block inner sleeves sleeved on the screw rods, the two ends of the copper bar conductors are aligned through the ring grooves formed in the pressing blocks, and the pressing blocks, the copper bar conductors and the end copper blocks at the two ends of the rotor lamination are locked and fixed through the matching of the nuts screwed and fixed on the screw rods and the washers. By the welding tool provided by the utility model, the assembly process requirements of the rotor lamination, the copper bar conductor and the end copper block are ensured;
in the process of welding and fixing the rotor lamination, the copper bar conductor and the end copper block into the rotor winding, the position relation among the rotor lamination, the copper bar conductor and the end copper block can be ensured, and the welding precision and the welding strength of the rotor winding are ensured;
in addition, the rotor welding tool provided by the utility model has the advantages of simple structure, easiness in processing and manufacturing, and convenience in installation and use.
Drawings
FIG. 1 is a schematic structural diagram illustrating an assembly welding of a rotor of an electric machine according to an embodiment of the present invention;
FIG. 2 illustrates a side view of the motor rotor assembly weld of FIG. 1;
FIG. 3 is a cross-sectional view taken at section A-A of FIG. 2;
FIG. 4 is a cross-sectional view taken at section B-B of FIG. 2;
FIG. 5 is an exploded view of the motor rotor assembly weld of FIG. 1;
the reference numbers in the figures illustrate: 10. rotor lamination; 20. a copper bar conductor; 30. an end copper block; 40. a screw; 50. a copper block is sleeved; 60. briquetting; 61. a ring groove; 70. a nut; 80. a gasket.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further clarified by combining the specific drawings.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As described above, in conjunction with fig. 1-5, the present invention provides a welding tool for a motor rotor, which is used for assembling and welding a rotor lamination 10, a copper bar conductor 20 and an end copper block 30,
the copper bar conductors 20 are uniformly arranged at intervals along the circumferential direction of the rotor lamination 10 and penetrate through the rotor lamination 10, two ends of each copper bar conductor 20 extend out of two ends of the rotor lamination 10, and the end copper blocks 30 are arranged between the adjacent copper bar conductors 20. The rotor winding is formed by assembling and welding the rotor lamination 10, the copper bar conductors 20 and the end copper blocks 30 described above.
The welding tool comprises a screw 40, a copper block inner sleeve 50 and a pressing block 60; the screw 40 penetrates through the rotor lamination 10 and extends towards two ends of the rotor lamination, two copper block inner sleeves 50 are arranged, the two copper block inner sleeves 50 are correspondingly sleeved on the screw 40 at two ends of the rotor lamination 10, and the outer edge of each copper block inner sleeve 50 is abutted and matched with the inner side of the copper block 30 at the end part;
the number of the pressing blocks 60 is two, the two pressing blocks 60 are correspondingly sleeved on the screw rods 40 at the two ends of the rotor lamination 10, and the inner side end faces of the two pressing blocks 60 are provided with annular grooves 61 for inserting the suspension ends of the copper bar conductors 20; nuts 70 are arranged on the outer end faces of the two pressing blocks 60 and matched with washers 80 to lock and position the pressing blocks 60, the copper bar conductors 20 and the end copper blocks 30 at the two ends of the rotor lamination 10.
According to the technical scheme provided by the utility model, the inner sides of the end copper blocks 30 clamped between the adjacent copper bar conductors 20 are aligned through the copper block inner sleeves 50 sleeved on the screw rods 40, the two ends of the copper bar conductors 20 are aligned through the ring grooves 61 arranged on the pressing blocks 60, and the pressing blocks 60, the copper bar conductors 20 and the end copper blocks 30 at the two ends of the rotor lamination 10 are locked and fixed through the matching of the nuts 70 screwed and fixed on the screw rods 40 and the washers 80. Through the welding tool provided by the utility model, the assembly welding process requirements of the rotor lamination 10, the copper bar conductor 20 and the end copper block 30, such as the concentricity and the verticality, are ensured, and the operation of welding and fixing the rotor lamination 10, the copper bar conductor 20 and the end copper block 30 into a rotor winding is facilitated.
Further, in the present invention, the width of the ring groove 61 is matched with the width of the copper bar conductor 20, and an opening structure is provided at the notch of the ring groove 61. Therefore, the two ends of the copper bar conductor 20 can be conveniently inserted into the ring grooves 61 of the pressing block 60, and reliable and accurate positioning and locking are realized.
The foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (2)
1. The utility model provides an electric motor rotor welding frock for the assembly welding of rotor lamination (10), copper bar conductor (20) and tip copper billet (30), its characterized in that, the welding frock includes:
a screw (40), said screw (40) passing through said rotor lamination (10) and extending towards both ends thereof;
the copper block inner sleeve (50) is provided with two screw rods (40) which are correspondingly sleeved at two ends of the rotor lamination (10), and the outer edge of the copper block inner sleeve (50) is abutted and matched with the inner side of the end copper block (30);
the two pressing blocks (60) are correspondingly sleeved on the screw rods (40) at the two ends of the rotor lamination (10), and annular grooves (61) are formed in the end faces of the inner sides of the two pressing blocks (60) and used for inserting the suspension ends of the copper bar conductors (20);
nuts (70) and washers (80) are arranged on the outer end faces of the two pressing blocks (60) and are matched with each other to lock and position the pressing blocks (60) at the two ends of the rotor lamination (10), the copper bar conductors (20) and the end copper blocks (30).
2. The electric motor rotor welding tool according to claim 1, characterized in that the width of the ring groove (61) is matched with the width of the copper bar conductor (20), and an opening structure is arranged at the notch of the ring groove (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122469683.3U CN215941975U (en) | 2021-10-12 | 2021-10-12 | Motor rotor welding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122469683.3U CN215941975U (en) | 2021-10-12 | 2021-10-12 | Motor rotor welding tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215941975U true CN215941975U (en) | 2022-03-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122469683.3U Active CN215941975U (en) | 2021-10-12 | 2021-10-12 | Motor rotor welding tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215941975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114825804A (en) * | 2022-06-29 | 2022-07-29 | 南京宇众自动化装备有限公司 | Asynchronous machine rotor copper billet assembly quality |
-
2021
- 2021-10-12 CN CN202122469683.3U patent/CN215941975U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114825804A (en) * | 2022-06-29 | 2022-07-29 | 南京宇众自动化装备有限公司 | Asynchronous machine rotor copper billet assembly quality |
| CN114825804B (en) * | 2022-06-29 | 2022-11-08 | 南京宇众自动化装备有限公司 | Asynchronous machine rotor copper billet assembly quality |
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