Method for connecting lamination parts to form a lamination stack
A lamination group and lamination technology, applied to chemical instruments and methods, layered products, manufacturing stator/rotor bodies, etc., can solve the problems of high repeatability costs, improve repeatability, ensure position, and facilitate disassembly split or split effect
Pending Publication Date: 2020-11-24
VOESTALPINE AUTOMOTIVE COMPONENTS DETTINGEN GMBH & CO KG
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
A disadvantage for the reproducibility of the method is the need for a relatively complex control / regulation system, for example to prevent the function of the continuous stamping tool from being impaired due to adhesive detached from the electrical steel strip.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] according to figure 1 The embodiment in , schematically shows a device 1 for carrying out the method according to the invention. The device 1 is used for stacking punched lamination parts 2 into a lamination stack 3 . To this end, an electrical steel strip 5 is uncoiled from a coil 4 or bundle, which has a full-scale adhesive layer 8, 9 on one or both of its flat sides 6, 7, i.e. Thermally cured hot melt adhesive layer. These adhesive layers 8, 9 are for example in figure 2 can be seen on the first lamination part 10 punched out of the electrical steel strip 5 .
[0028] A plurality of laminated core parts 2 are punched out of an electrical steel strip 5 coated with adhesive on both sides by means of a stamping tool 11 . In general, such punching out may be cutting out, cutting off, breaking off, cutting, dividing by pressing, or the like.
[0029] as from figure 1 It can also be seen in the figure that the punching tool 11 , for example here a continuous punchin...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| width | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a method for connecting lamination parts (2) to form a lamination stack (3), in which lamination parts (2) are punched out from an electrical steel strip (5), which is coatedon at least one of the flat sides (6, 7) thereof with an activatable adhesive layer (8, 9), in particular a hot-melt adhesive layer, and the punched-out lamination parts (2) are stacked and are adhesively bonded to form lamination stacks (3), the electrical steel strip (5) being embossed in a first subregion (5.1) before lamination parts (2) are punched out, a plurality of spacers (20.1, 20.2) protruding on at least one flat side (6, 7) of the electrical steel strip (5) being produced by the embossing, by means of which spacers (20.1, 20.2) the separating of the stacked and adhesively bonded lamination parts (2) into lamination stacks (3) is facilitated after a first lamination part (2) has been punched out from said first subregion (5.1). In order to achieve separation that is simple withrespect to process, it is proposed that spacers (20.1, 20.2) protruding from both flat sides (6, 7) of the electrical steel strip (5) are produced in the first subregion (5.1) by embossing and that the first lamination part (2) is provided as a separating element (10.1, 10.2, 10.3) between the lamination parts (2) adhesively bonded to each other, which separating element is separate from the lamination stacks (3).
Description
technical field [0001] The invention relates to a method for joining lamination parts according to the preamble of claim 1 . Background technique [0002] In order to enable the lamination packs leaving the stacking device of the continuous punching tool to be disassembled or separated from each other, according to the preamble of claim 1 known from the prior art (WO 2017 / 159926 A1), at the end of each lamination pack A plurality of protruding spacers are provided on the lamination part on the side of the body. These spacers are produced by embossing in the first partial region before the end-side laminate parts are punched out. This protruding spacer reduces the contact area between the lamination parts or lamination groups in the stack, which weakens the material-bonded (stoffschlüssig) connection or (physically) connection between the lamination groups. or chemically cross-linked) the strength of the adhesive connection. Although the spacers of this prior art facilitat...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/02B32B15/01H01F41/02
CPCB32B15/011H01F41/0233H02K15/02C21D8/12B32B5/26B32B7/12
Inventor 约亨·兰克斯威尔特阿克塞尔·南恩
Owner VOESTALPINE AUTOMOTIVE COMPONENTS DETTINGEN GMBH & CO KG