CN114999803A - Method for forming single-frame iron core - Google Patents
Method for forming single-frame iron core Download PDFInfo
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- CN114999803A CN114999803A CN202210631167.2A CN202210631167A CN114999803A CN 114999803 A CN114999803 A CN 114999803A CN 202210631167 A CN202210631167 A CN 202210631167A CN 114999803 A CN114999803 A CN 114999803A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
- H01F41/0226—Manufacturing of magnetic circuits made from strip(s) or ribbon(s) from amorphous ribbons
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Abstract
The invention relates to a method for forming a single-frame iron core. The method for forming the single-frame iron core comprises the following steps: winding the material belt on a first inner support to form an annular single-frame matrix, wherein the first inner support is annular; sleeving the annular single-frame base body on the square supporting module, and stretching the annular single-frame base body into a first rectangular single-frame base body by once separation of two module units of the square supporting module along a first direction perpendicular to the axis of the first inner support; along the first direction, the two module units are separated for the second time so as to stretch the first rectangular single-frame base body into a second rectangular single-frame base body. By adopting the technical scheme, the forming degree of the first rectangular single-frame base body and the second rectangular single-frame base body can be higher, and the driving force for driving the driving piece for separating the two module units can be reduced.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a method for forming a single-frame iron core.
Background
In the processing process of the single-frame iron core, an amorphous alloy material belt is generally wound on a circular inner support, and a driving piece drives a square support structure to stretch the material belt and the inner support into a rectangular single-frame iron core. In the technical scheme, the driving part can finish the stretching of the material belt and the inner support only by applying larger force to the supporting square structure, and the requirement on the performance of the driving part is higher, so that the cost of the driving part is higher; by adopting the technical scheme, the inner support is large in thickness and high in strength, so that the material belt and the inner support are difficult to stretch into a specified shape, namely the forming degree of the single-frame iron core is low.
Disclosure of Invention
Accordingly, it is necessary to provide a method for forming a single-frame iron core, which is directed to the problems of the conventional method for forming a single-frame iron core that the performance requirement of the driving device is high and the degree of formation of the wound iron core is poor.
The invention provides a method for forming a single-frame iron core, which comprises the following steps: winding the material belt on a first inner support to form an annular single-frame matrix, wherein the first inner support is annular; sleeving the annular single-frame base body on the square supporting module, and stretching the annular single-frame base body into a first rectangular single-frame base body by once separation of two module units of the square supporting module along a first direction perpendicular to the axis of the first inner support; along the first direction, the two module units are separated for the second time so as to stretch the first rectangular single-frame base body into a second rectangular single-frame base body.
In one embodiment, the step of secondarily separating the two module units further comprises the following steps: a second inner support is arranged in the first rectangular single-frame base body in a penetrating mode, the second inner support is sleeved on the square support module, and the second inner support is annular; in the secondary separation step of the two module units, the two module units are secondarily separated and stretched to stretch the second inner support, and the stretched second inner support and the second rectangular single frame form a third rectangular single frame.
In one embodiment, the step of separating two module units in the supporting module at a time and stretching the annular single-frame matrix into the first rectangular single-frame matrix specifically includes: the auxiliary die is sleeved between the annular single-frame base body and the square supporting module, two die units in the auxiliary die are respectively sleeved on the outer sides of the two module units, and the two die units move towards the direction away from each other along with the primary separation of the two module units.
In one embodiment, the mold unit includes a first side plate, a second side plate and a third side plate, the first side plate is perpendicular to the second side plate, the first side plate and the third side plate are arranged in parallel, the first side plate and the third side plate are respectively located at two sides of the second side plate, the second side plate is located at one side of the module unit far away from another module unit, and the first side plate and the third side plate are respectively located at two sides of the module unit.
In one embodiment, the auxiliary mold further comprises a support plate and two side plates, the two side plates are arranged in parallel and fixedly connected to two sides of the bottom of the support plate respectively, and the two mold units are connected to two ends of the bottom of the support plate in a sliding mode respectively; in the step of stretching the annular single-frame base body into the first rectangular single-frame base body by once separating the two module units of the support square module, the side plates are positioned on two sides of the two module units, and the support plates are lapped on the annular single-frame base body.
In one embodiment, the step of inserting the second inner support into the first rectangular single-frame base body and sleeving the second inner support on the square support module further includes the following steps: the auxiliary die is disassembled and a second inner support is placed between the modular unit and the first rectangular single frame base.
In one embodiment, the second inner support is a rectangular ring structure; the second inner support penetrates through the first rectangular single-frame base body, the second inner support is sleeved on the square supporting module, two inner side walls of the second inner support in the first direction are attached to the square supporting module, a gap between two outer side walls of the second inner support in the first direction and the inner wall of the first rectangular single-frame base body is smaller than 1.5mm, a gap between two inner side walls of the second inner support in the first direction perpendicular to the first direction and the module unit is smaller than 1mm, and two outer side walls of the second inner support in the first direction perpendicular to the first direction are attached to the first rectangular single-frame base body.
In one embodiment, the modular unit comprises a first section and a second section which are connected, the circumferential structural size of the first section is smaller than that of the second section, and the second section is positioned below the first section; in the step of sleeving the auxiliary mold between the annular single-frame base body and the square supporting module, the mold unit is sleeved on the first section; and a second inner support is arranged in the first rectangular single-frame base body in a penetrating mode, and in the step of enabling the second inner support to be sleeved on the square supporting module, the second inner support is sleeved on the first section.
In one embodiment, the inner frame of the first rectangular single-frame base body, the second rectangular single-frame base body and the third rectangular single-frame base body is of a rectangular structure, and transition arc surfaces are arranged between two adjacent side walls of the first rectangular single-frame base body and the second rectangular single-frame base body.
In one embodiment, the two module units are driven to be separated by the first driving piece in the step of separating the two module units at one time; in the two module units secondary separation step, a second driving piece is placed between the two module units, and the first driving piece and the second driving piece simultaneously drive the two module units to be separated.
In one embodiment, in the step of winding the material belt on the first inner support to form the annular single-frame base body, a core mold is sleeved on the first inner support, and the core mold is attached to the first inner support; in the step of sleeving the annular single-frame base body on the square supporting module, the square supporting module drives the core mold to be separated from the first inner support.
In one embodiment, the supporting module is arranged on the operation table, in the step of sleeving the annular single-frame base body on the supporting module, the annular single-frame base body is placed on the operation table, and a supporting piece is arranged between the operation table and the annular single-frame base body and is attached to the annular single-frame base body so as to support the annular single-frame base body.
In one embodiment, the method for forming a single-frame core further includes: the outermost layer of the material belt is wrapped with a fixing belt, and the head end and the tail end of the fixing belt are mutually connected to form an outer hoop.
In the technical scheme, the method for forming the single-frame iron core comprises the following steps: the material belt is wound on the first inner support to form an annular single-frame matrix; the annular single-frame base body is sleeved on the support square module, and the module units are separated once along a first direction perpendicular to the axis of the first inner support so as to stretch the annular single-frame base body into a first rectangular single-frame base body; the two module units are separated for the second time to stretch the first rectangular single frame substrate into a second rectangular single frame substrate. By adopting the technical scheme, the module units are separated for the first time and the second time along the first direction, the annular single-frame base body is stretched into the first rectangular single-frame base body and then stretched into the second rectangular single-frame base body, so that the driving force for driving the module units to be separated is reduced, the performance requirement of the driving piece for driving the two module units to be separated is reduced, the cost of the driving piece is further reduced, and the overall cost of production equipment is reduced; and the annular single-frame base body is stretched into a second rectangular single-frame base body through twice stretching, so that the forming degree of the second rectangular single-frame base body can be higher, and the performance of the single-frame iron core can be improved.
Drawings
Fig. 1 is a schematic structural view of a single-frame iron core sleeved on a square supporting module according to an embodiment;
fig. 2 is an exploded view of a single-framed core, a support member, and a support cube module according to an embodiment;
FIG. 3 is a schematic diagram illustrating a first perspective view of an auxiliary mold according to an embodiment;
FIG. 4 is a structural diagram of an auxiliary mold according to a second perspective of the present invention;
FIG. 5 is a schematic diagram illustrating a third perspective view of an auxiliary mold according to an embodiment;
fig. 6 is a flowchart of a method for forming a single-frame iron core according to an embodiment.
Element number description:
1. a material belt; 2. a first inner support; 3. an annular single frame base; 4. a square supporting module; 41. a module unit; 411. a first stage; 412. a second stage; 5. an auxiliary mold; 51. a mold unit; 511. a first side plate; 512. a second side plate; 513. a third side plate; 52. a support plate; 53. a side plate; 6. and a support member.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" 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," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
An embodiment of the invention provides a method for forming a single-frame iron core. Referring to fig. 6, the method for forming the single frame core includes the steps of:
winding the material belt 1 on a first inner support 2 to form an annular single frame base body 3, wherein the first inner support 2 is annular (refer to fig. 1);
sleeving the annular single-frame base body 3 on the square supporting module 4, and separating two module units 41 of the square supporting module 4 once along a first direction perpendicular to the axis of the first inner support 2 to stretch the annular single-frame base body 3 into a first rectangular single-frame base body;
along the first direction, the two module units are separated for the second time so as to stretch the first rectangular single-frame base body into a second rectangular single-frame base body.
Among the above-mentioned technical scheme, the cross section of annular single frame base member 3 is semi-circular, and the lateral wall of annular single frame base member 3 is the conical surface, and the inside wall of annular single frame base member 3 is arc, and the lateral wall of annular single frame base member 3 is for assembling the face. In the single-frame iron core forming process, the inner side wall of the annular single-frame base body 3 is arranged downwards, the inner side walls of the first rectangular single-frame base body and the second rectangular single-frame base body are arranged downwards, so that the single-frame iron core is not required to be turned over when the single-frame iron core is produced, and the single-frame iron core is not required to be turned over when a plurality of single-frame iron cores are assembled, so that the processing efficiency is improved, loose deformation of the material belt 1 caused by turning over the single-frame iron core can be avoided, and the defective rate is reduced.
Alternatively, the strip is made of an amorphous alloy and the first inner support 2 and the second inner support are made of a steel material.
By adopting the technical scheme, the module units 41 are separated for the first time and the second time along the first direction, the annular single-frame base body 3 is stretched into the first rectangular single-frame base body and then is stretched into the second rectangular single-frame base body, so that the driving force for driving the module units 41 to separate is reduced, the performance requirement of the driving piece for driving the two module units 41 to separate is reduced, the cost of the driving piece is further reduced, and the overall cost of production equipment is reduced; and the annular single-frame base body is stretched into a second rectangular single-frame base body through twice stretching, so that the forming degree of the second rectangular single-frame base body can be higher, and the performance of the single-frame iron core can be improved.
In one embodiment, before the secondary separation of the two module units, the method further comprises the following steps: and a second inner support is arranged in the first rectangular single-frame base body in a penetrating mode, the second inner support is sleeved on the square support module, and the second inner support is annular. In the secondary separation step of the two module units, the two module units are secondarily separated and stretched to stretch the second inner support, and the stretched second inner support and the second rectangular single frame form a third rectangular single frame. By adopting the technical scheme, the stretched second inner support and the stretched first inner support are parts of the third rectangular single frame, so that the thickness of the first inner support can be reduced, the driving force for separating the driving module unit 41 is further reduced, namely, the performance requirement on the driving piece is further reduced, and the forming degree of the first rectangular single frame can be improved. In addition, in order to enable the structural size of the third rectangular single frame to meet the requirement, the thickness of the inner support of the third rectangular single frame needs to meet a certain amount, and the structural strength of the superposition of the first inner support 2 and the second inner support is smaller than the structural strength of the inner support of which the thickness is equal to the sum of the thicknesses of the first inner support 2 and the second inner support, so that by adopting the technical scheme, the driving force for driving the two module units 41 to be separated for the second time can be reduced, namely, the performance requirement on the driving piece can be further reduced.
In an embodiment, the two module units 41 in the square supporting module 4 are separated at a time, and the step of stretching the annular single-frame matrix 3 into the first rectangular single-frame matrix specifically includes: the auxiliary mold 5 is sleeved between the annular single-frame base body 3 and the square supporting module 4, two mold units 51 in the auxiliary mold 5 are respectively sleeved outside the two module units 41, and the two mold units 51 move in the direction away from each other along with the primary separation of the two module units 41. In the above technical solution, when the square supporting module 4 is separated once, the mold unit 51 is attached to the inner side wall of the first rectangular single-frame base.
In an embodiment, the step of inserting the second inner support into the first rectangular single-frame substrate and sleeving the second inner support on the square supporting module further includes: the auxiliary mold 5 is disassembled and a second inner support is placed between the module unit 41 and the first rectangular single frame base. After the auxiliary die 5 is disassembled, a gap exists between the module unit 41 and the first rectangular single-frame base body, so that the second inner support is conveniently placed. In the above step, before the step of placing the second inner support between the module unit 41 and the first rectangular single frame base, the two module units 41 are slightly brought close in the first direction in order to mount the second inner support.
Referring to fig. 3 to 5, in an embodiment, the module unit 41 has a rectangular structure, the mold unit 51 includes a first side plate 511, a second side plate 512, and a third side plate 513, the first side plate 511 is perpendicular to the second side plate 512, the first side plate 511 and the third side plate 513 are arranged in parallel, the first side plate 511 and the third side plate 513 are respectively located on two sides of the second side plate 512, the third side plate 513 is located on a side of the module unit 41 away from another module unit 41, and the first side plate 511 and the third side plate 513 are located on two sides of the module unit 41. At the separation of two module unit 41 once, first curb plate 511, second curb plate 512 and third curb plate 513 all laminate with module unit 41 mutually to when avoiding tensile the single frame base member of annular 3 for the single frame base member of first rectangle, rock each other between module unit 41 and the mould unit 51, thereby can guarantee that the degree of shaping of the single frame base member of first rectangle is higher.
Referring to fig. 3 to 5, in an embodiment, the auxiliary mold 5 further includes a supporting plate 52 and two side plates 53, the two side plates 53 are disposed in parallel, the two side plates 53 are respectively and fixedly connected to two sides of the bottom of the supporting plate 52, and the two mold units 51 are respectively and slidably connected to two ends of the bottom of the supporting plate 52; in the step of drawing the annular single-frame base body 3 into the first rectangular single-frame base body by separating the two module units 41 at a time, the side plates 53 are positioned on both sides of the two module units 41, and the support plates 52 are lapped on the annular single-frame base body 3. Alternatively, the first side plate 511 and the third side plate 513 of the mold unit 51 are flush with the two side plates 53, respectively, so that the inner side wall of the first rectangular single frame base body is fitted with the two side plates 53, thereby being able to further improve the straightness of the first rectangular single frame base body. Due to the fact that a gap is formed between the two module units 41 when the two module units are separated, by means of the structure, when the annular single-frame base body 3 is stretched into the first rectangular single-frame base body, the material belt 1 and the first inner support 2 are prevented from protruding into the gap between the two module units 41, and therefore the straightness of the first rectangular single-frame base body can be improved. With the above structure, the support plate 52 is lapped on the annular single frame base body 3, and the structural stability of the support plate 52 is good, so that the support plate 52 is prevented from being displaced when the two module units 41 are separated once to influence the forming degree of the first rectangular single frame base body.
In one embodiment, the inner frame of the first rectangular single-frame base body and the inner frame of the third rectangular single-frame base body are in a rectangular structure, and transition arc surfaces are arranged between two adjacent side walls of the first rectangular single-frame base body and the third rectangular single-frame base body. Like this, can make the material area 1 on first rectangle list frame base member and the single frame base member of third rectangle have the transition cambered surface in the department of buckling to can prevent that material area 1 from warping the fracture.
Specifically, the inner wall of the first rectangular single-frame base body is attached to the auxiliary mold 5, and the inner wall of the third rectangular single-frame base body is attached to the square supporting module 4. A transition arc surface is arranged between the first side plate 511 and the second side plate 512 of the mold unit 51, and a transition arc surface is arranged between the second side plate 512 and the third side plate 513, so that when the module unit 41 stretches the annular single-frame base body 3 into the first rectangular single-frame base body, the connection part of the inner side walls of the first rectangular single-frame base body has the transition arc surface. The portion of the module unit 41 used for stretching the first rectangular single-frame base body is of a rectangular structure, and a transition arc surface is arranged between two adjacent side walls of the module unit 41, so that when the module unit 41 stretches the second rectangular single-frame base body into the third rectangular single-frame base body, a transition arc surface is arranged between the inner side walls of the first rectangular single-frame base body.
In an embodiment, the second inner support is a rectangular ring structure, and a transition arc surface is disposed at a corner of the second inner support, so that the second inner support is attached to the first rectangular single frame base and the module unit 41 after being stretched. In the step of penetrating a second inner support into the first rectangular single-frame base body and enabling the second inner support to be sleeved on the square supporting module, two inner side walls of the second inner support in the first direction are attached to the square supporting module 4, and a gap between two outer side walls of the second inner support in the first direction and the inner wall of the first rectangular single-frame base body is smaller than 1.5 mm; the gap between the two inner side walls of the second inner support in the direction perpendicular to the first direction and the module unit 41 is smaller than 1mm, and the two outer side walls of the second inner support in the direction perpendicular to the first direction are attached to the first rectangular single-frame base body. When the two module units 41 are separated for the second time, the second inner support and the first rectangular single-frame base body are stretched in the first direction, so that two inner side walls of the second inner support in the first direction are attached to the square supporting module 4, and after the second inner support is stretched by the square supporting module 4, the forming degree of the second inner support is better, namely the forming degree of the third rectangular single-frame base body is better; when the second inner support is stretched, the positions of the two side walls of the second inner support in the direction perpendicular to the first direction cannot be changed, so that the two outer side walls of the second inner support in the direction perpendicular to the first direction are attached to the first rectangular single frame base body, and the stretched second inner support can be attached to the second rectangular single frame base body in the third rectangular single frame base body. In addition, the clearance between the two outer side walls of the second inner support in the first direction and the inner wall of the first rectangular single-frame base body is smaller than 1.5mm, and the clearance between the two inner side walls of the second inner support in the direction perpendicular to the first direction and the module unit 41 is smaller than 1 mm.
Referring to fig. 2, in one embodiment, the modular unit 41 includes a first section 411 and a second section 412 connected together, the first section 411 having a smaller circumferential structural dimension than the second section 412, and the second section 412 being located below the first section 411. In the step of sleeving the auxiliary mold 5 between the annular single frame base 3 and the square supporting module 4, the mold unit 51 is sleeved on the first section 411, and the mold unit 51 is overlapped on the second section 412 to support the mold unit 51. In the step of penetrating a second inner support in the first rectangular single frame base body and sleeving the second inner support on the square supporting module, the second inner support is sleeved on the first section 411, the second inner support is overlapped on the second section 412, and the second section 412 is used for supporting the second inner support, so that the second inner support is kept between the square supporting module 4 and the first rectangular single frame base body, and the second inner support can be kept at a designated position in the axial direction.
In one embodiment, in one separation step of the modular units 41, two modular units 41 are driven to separate by the first driving member; in the secondary separation step of the modular units 41, a second driving member is placed between the two modular units 41, and the first driving member and the second driving member simultaneously drive the two modular units 41 to be separated. Since the annular single frame body 3 has only the first inner support 2 inside, the first driver driving module unit 41 stretches the annular single frame body 3 into the first rectangular single frame body in the one-time separation step of the module unit 41, and the one-time separation of the module unit 41 can be driven by a smaller driving force of the first driver. In the secondary separation step of the module unit 41, the module unit 41 stretches the second inner support and the first rectangular single-frame base, so that by adopting the above technical scheme, the module unit 41 is driven to be separated for the second time by the first driving piece and the second driving piece, and thus, the driving forces of the first driving piece and the second driving piece are both small, and the secondary separation of the module unit 41 can be driven. Therefore, the technical scheme can reduce the performance requirements on the first driving piece and the second driving piece, so that the overall cost of production equipment can be reduced. Alternatively, the thickness of the second inner support can be made larger than that of the first inner support 2, so that the strength of the first inner support 2 is smaller, thereby reducing the driving force for driving the two module units 41 to be separated at one time, and further reducing the performance requirement on the first driving member; although the strength of the second inner support is higher, the first driving piece and the second driving piece simultaneously drive the square supporting module 4 to separate for the second time and stretch the second inner support and the first rectangular single-frame base body, so that the requirements on the driving force of the first driving piece and the driving force of the second driving piece are further reduced. Optionally, the first drive member is a hydraulic cylinder and the second drive member is a hydraulic mine.
In one embodiment, in the step of winding the material belt 1 on the first inner support 2 to form the annular single frame base body 3, a core mold is sleeved in the first inner support 2 and is attached to the first inner support 2; in the step of sleeving the annular single-frame base body 3 on the square supporting module 4, the square supporting module 4 drives the core mold to be separated from the first inner support 2. The core die is arranged, so that the material belt 1 can be wound on the first inner support 2 to form the annular single frame base body 3, when the material belt 1 is wound on the first inner support 2, the first inner support 2 is not deformed, and the structural size of the annular single frame base body 3 can meet the standard. The core mould is of a circular structure, the side wall of the core mould is provided with a notch, and when the core mould is arranged in the first inner support 2 in a penetrating mode, the wedge block is fixed in the notch, so that the core mould and the first inner support 2 are attached to each other and are fixed with each other. The shape of the wedge block is the same as that of the notch.
Referring to fig. 2, in an embodiment, the supporting module 4 is disposed on the operating table, in the step of sleeving the annular single-frame base 3 on the supporting module 4, the annular single-frame base 3 is placed on the operating table, the supporting member 6 is disposed between the operating table and the annular single-frame base 3, and the supporting member 6 is attached to the annular single-frame base 3 to support the annular single-frame base 3. The supporting member 6 can support the annular single frame base body 3 and prevent the material belt 1 on the annular single frame base body 3 from being loose and deformed. In the step of fitting the annular single-frame base body 3 on the square-supporting module 4, the support 6 is hung on the annular single-frame base body 3, and when the annular single-frame base body 3 is placed on the operation table, the support 6 is located between the operation table and the annular single-frame base body 3.
In an embodiment, in the step of sleeving the annular single-frame base body 3 on the square supporting module 4, the operating table is arranged along the vertical direction, an installation shaft is clamped between the two module units 41, an installation through hole is formed in the core mold, the annular single-frame base body 3 and the core mold are sleeved on the installation shaft, and the installation through hole is in transition fit with the installation shaft. Before the module unit 41 is separated once, the wedges of the core mould are removed, then the operating table is switched to be in the horizontal direction, the square supporting module 4 ejects the core mould, the core mould is separated from the first inner support 2, and at the moment, the operator removes the mounting shaft and the core mould from the operating table.
In an embodiment, the method of forming a single frame core further includes: the outermost layer of the material belt 1 is wrapped with a silicon steel belt, and the head end and the tail end of the fixing belt are connected with each other to form an outer hoop. The fixing band is a silicon steel band. The two ends of the silicon steel strip are connected through argon arc welding spot welding. The material area 1 is convoluteed on first interior support 2, adopts above-mentioned structure, and the silicon steel strip can seal the outmost kneck in material area 1 to prevent that material area 1 is loose.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (13)
1. A method for forming a single-frame iron core is characterized by comprising the following steps:
winding a material belt (1) on a first inner support (2) to form an annular single-frame base body (3), wherein the first inner support (2) is annular;
sleeving the annular single-frame base body (3) on a supporting square module (4), and separating two module units (41) of the supporting square module (4) once along a first direction perpendicular to the axis of the first inner support (2) to stretch the annular single-frame base body (3) into a first rectangular single-frame base body;
along the first direction, the two module units (41) are separated twice to stretch the first rectangular single frame base into a second rectangular single frame base.
2. The method of forming a single frame core according to claim 1, wherein the step of secondarily separating the two module units (41) further comprises the steps of:
a second inner support is arranged in the first rectangular single-frame base body in a penetrating mode, the second inner support is sleeved on the square supporting module (4), and the second inner support is annular;
in the secondary separation step of the two module units (41), the two module units (41) perform secondary separation and stretching on the second inner support, and the stretched second inner support and the second rectangular single frame form a third rectangular single frame.
3. The method for forming a single-frame core according to claim 2, wherein the two module units (41) in the support module (4) are separated at a time, and the step of stretching the annular single-frame base (3) into a first rectangular single-frame base is specifically:
the auxiliary die (5) is sleeved between the annular single-frame base body (3) and the square supporting module (4), two die units (51) in the auxiliary die (5) are respectively sleeved on the outer sides of the two module units (41), and the two die units (51) move along with the separation of the two module units (41) in one time to the direction away from each other.
4. A method for forming a single-frame core according to claim 3, wherein the mold unit (51) includes a first side plate (511), a second side plate (512), and a third side plate (513), the first side plate (511) is perpendicular to the second side plate (512), the first side plate (511) and the third side plate (513) are arranged in parallel, the first side plate (511) and the third side plate (513) are respectively located on both sides of the second side plate (512), the second side plate is located on a side of the module unit (41) away from the other module unit, and the first side plate (511) and the third side plate (513) are respectively located on both sides of the module unit (41).
5. The method of forming a single-frame core according to claim 3,
the auxiliary mould (5) further comprises a supporting plate (52) and two side plates (53), the two side plates (53) are arranged in parallel, the two side plates (53) are fixedly connected to two sides of the bottom of the supporting plate (52) respectively, and the two mould units (51) are connected to two ends of the bottom of the supporting plate (52) in a sliding mode respectively;
in the step of stretching the annular single-frame base body (3) into a first rectangular single-frame base body by once separating the two module units (41) of the support module (4), the side plates (53) are positioned on two sides of the two module units (41), and the support plate (52) is lapped on the annular single-frame base body (3).
6. The method for forming a single-frame core according to claim 3, wherein the step of inserting a second inner support into the first rectangular single-frame base and fitting the second inner support on the support square module further comprises:
-disassembling the auxiliary mould (5) and placing the second inner support between the modular unit (41) and the first rectangular single frame base.
7. The method of forming a single frame core as recited in claim 2, wherein said second inner support is a rectangular ring structure; the second inner support is arranged in the first rectangular single-frame base in a penetrating mode, the second inner support is sleeved on the square supporting module in the step, the second inner support is arranged on two inner side walls in the first direction and attached to the square supporting module (4), a gap between two outer side walls in the first direction and the inner wall of the first rectangular single-frame base is smaller than 1.5mm, a gap between two inner side walls perpendicular to the first direction and the module unit (41) in the second inner support is smaller than 1mm, and two outer side walls perpendicular to the first direction and attached to the first rectangular single-frame base in the second inner support.
8. A method for forming a single-frame core according to claim 3, wherein the module unit (41) comprises a first segment (411) and a second segment (412) connected, the first segment (411) having a circumferential structural dimension smaller than that of the second segment (412), the second segment (412) being located below the first segment (411); in the step of sleeving an auxiliary mold (5) between the annular single-frame base body (3) and the square support module (4), the mold unit (51) is sleeved on the first section (411); and a second inner support is arranged in the first rectangular single-frame base body in a penetrating mode, and in the step that the second inner support is sleeved on the square supporting module, the second inner support is sleeved on the first section (411).
9. The method of claim 2, wherein the inner frames of the first rectangular single frame base, the second rectangular single frame base, and the third rectangular single frame base have a rectangular configuration, and wherein the first rectangular single frame base and the second rectangular single frame base have transition curved surfaces between adjacent sidewalls of the first rectangular single frame base and the second rectangular single frame base.
10. The method of forming a single frame core according to claim 1, wherein in the step of separating two of the module units (41) at a time, the two module units (41) are driven to be separated by a first driving member; in the secondary separation step of the two module units (41), a second driving piece is placed between the two module units (41), and the first driving piece and the second driving piece simultaneously drive the two module units (41) to be separated.
11. A method for forming a single-framed core as claimed in claim 1, characterized in that in the step of winding the strip of material (1) around the first inner support (2) to form the annular single-framed base (3), the first inner support (2) is fitted with a core mold, which is fitted to the first inner support (2); in the step of sleeving the annular single-frame base body (3) on the square supporting module (4), the square supporting module (4) drives the core mould to be separated from the first inner support (2).
12. The method of forming a single-frame core according to claim 1, wherein the leg module (4) is disposed on a table, the annular single-frame base (3) is placed on the table in the step of fitting the annular single-frame base (3) on the leg module (4), a support member (6) is disposed between the table and the annular single-frame base (3), and the support member (6) is fitted to the annular single-frame base (3) to support the annular single-frame base (3).
13. The method of forming a single-framed core according to claim 1, further comprising:
the outermost layer of the material belt (1) is wrapped by a fixing belt, and the head end and the tail end of the fixing belt are connected with each other to form an outer hoop.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210631167.2A CN114999803A (en) | 2022-06-06 | 2022-06-06 | Method for forming single-frame iron core |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210631167.2A CN114999803A (en) | 2022-06-06 | 2022-06-06 | Method for forming single-frame iron core |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023236829A1 (en) * | 2022-06-06 | 2023-12-14 | 天津珠峰硅钢股份有限公司 | Single-frame iron core forming method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023236829A1 (en) * | 2022-06-06 | 2023-12-14 | 天津珠峰硅钢股份有限公司 | Single-frame iron core forming method |
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