A method for shaping transformer L-bending workpieces
A transformer and L-shaped technology, applied in the field of steel component manufacturing, can solve problems such as failure to meet the use requirements and flatness requirements
Active Publication Date: 2018-07-17
BAODING TIANWEI BAOBIAN ELECTRICAL
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
After bending, the L-shaped steel plate is deformed, and the two ends of the bent steel plate are shifted to the bending side. Refer to the attached figure 2 , resulting in flatness that does not meet the requirements and cannot meet the requirements for use
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
[0016] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0017] A method for shaping a transformer L-shaped bending workpiece, the operation method is as follows:
[0018] ① Make transformer L-shaped bending workpiece. After the steel plate is bent, the steel plate forms two parts: the bending side 11 and the non-bending side 12. If the two ends of the bent steel plate are offset to the bent side, the thermal expansion of the steel plate is used The principle of cold shrinkage corrects the transformer L-bending workpiece; the flame heats the middle part of the steel plate on the non-bending side of the transformer L-bending workpiece. After cooling, the middle part of the transformer L-bending workpiece moves to the bending side, and finally makes the transformer The flatness of the L-shaped bending workpiece meets the requirements;
[0019] ② When correcting, flame heating is carried out on the arc portion of the...
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
Login to View More Abstract
The invention relates to a method for shaping an L-shaped bent workpiece of a transformer, and belongs to the technical field of manufacturing of steel components. According to the technical scheme, the method comprises the following steps: manufacturing the L-shaped bent workpiece of the transformer; bending a steel plate to form a bent side (11) and a non-bent side (12) of the steel plate; if two ends of the bent steel plate skews towards the bent side, correcting the L-shaped bent workpiece of the transformer by a principle of heat expansion and cold contraction of the steel plate; heating the middle of the non-bent side of the steel plate of the L-shaped bent workpiece of the transformer by flame; after cooling, enabling the middle part of the L-shaped bent workpiece of the transformer to move towards the bent side; and finally, enabling the planeness of the L-shaped bent workpiece of the transformer to meet requirements. The method has the positive effects that the steel plate workpiece is heated by the flame to correct the planeness of the bent workpiece, so that the bent steel plate meets using requirements; and the planeness of the corrected L-shaped bent workpiece of the transformer reaches 2 mm.
Description
technical field [0001] The invention relates to a shaping method for an L-shaped bending workpiece of a transformer, and belongs to the technical field of steel component manufacturing. Background technique [0002] At present, many parts in the transformer are steel plate workpieces with L-shaped bending structure, the form is shown in the attached figure 1 , For example, shell transformer box wall, ABB box wall, DC clip oil guide box, etc. The production of L-shaped bending workpiece is to cut the material by flame cutting first, and then bend it by bending machine. After bending, the L-shaped steel plate is deformed, and the two ends of the bent steel plate are shifted to the bending side. Refer to the attached figure 2 , resulting in flatness that does not meet the requirements and cannot meet the requirements for use. Contents of the invention [0003] The purpose of the present invention is to provide a shaping method for transformer L-shaped bending workpieces, ...
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 Patents(China)
IPC IPC(8): B21D1/00B21D37/16
CPCB21D1/00B21D37/16
Inventor 王仕宁葛惠卿孙明秦建伟赵东
Owner BAODING TIANWEI BAOBIAN ELECTRICAL