A frame structure, a door body, a steam oven and a processing method of the frame structure

Abstract

The application relates to the field of process machining, in particular to a frame structure, a door body, a steaming and baking oven and a processing method of the frame structure, and provides an electromagnetic lock structure which comprises a bottom plate, the edges of the bottom plate are bent to the same side to form flanges, adjacent two flanges are connected through the arc-shaped connecting edges, at least one group of the connecting edges comprises a first edge and a second edge, the first edge and the second edge are arranged side by side along the height direction of the flange, the first edge is located between the second edge and the bottom plate, the first edge, the bottom plate and the flange are an integrated stamping forming structure, one end of the second edge is integrally formed with one of the flanges, and the other end is connected with the other flange, so that the problems that the artificial cost is increased due to the use of additional welding patches at the frame and the patch firmness is not high and the appearance is not good in appearance are solved.

Description

Technical Field

[0001] This invention relates to the field of process manufacturing, and in particular to a processing method for a frame structure, a door, a steam oven, and a frame structure. Background Technology

[0002] As people's living standards improve, steam ovens are beginning to enter home kitchens. Steam ovens have multiple cooking functions such as baking, steaming, and microwaving. Generally, a steam oven has a cabinet and a door that can be connected to the cabinet. The steam oven door can form a closed working area with the cabinet.

[0003] When processing the door frame of a steam oven, different stamping processes will be used because the radius of the four corners is different. When the radius of the corner is less than 5mm and the flange height is greater than 6mm, the corner of the frame will have compressive stress that causes the corner to crack. The material on the stamping machine will cause the parts to fail to meet the requirements.

[0004] To prevent cracks at the rounded corners of the frame, the current practice is to cut off the material at the top corner of the oven door processing plate, and then add a patch at the rounded corner notch where the adjacent sides of the plate are connected by stamping. However, the patch is not easy to align during the welding process, resulting in poor weld strength and poor appearance. In addition, the extra welding patch process increases the cost of parts and labor. Summary of the Invention

[0005] The purpose of this invention is to provide a frame structure to solve the problems of increased labor costs, low patch strength, and poor aesthetics caused by using additional welded patches at the door frame of existing steam ovens.

[0006] This invention provides a frame structure, including a base plate, the edges of which are bent to the same side to form flanges, and adjacent flanges are connected by an arc-shaped connecting edge; at least one set of connecting edges includes a first edge and a second edge, the first edge and the second edge are arranged side by side along the height direction of the flanges, and the first edge is located between the second edge and the base plate, the first edge, the base plate and the flanges are integrally stamped structures, one end of the second edge is integrally formed with one of the flanges, and the other end is connected to the other flange.

[0007] Furthermore, when the radius of the connecting edge is less than 5mm, the corresponding connecting edge includes the first edge and the second edge.

[0008] Furthermore, the height of the first side is less than 6mm, and the distance between the outer edge of the second side and the surface of the base plate is greater than 6mm.

[0009] Furthermore, the second side includes a first contact end, and the flange connected to the second side is provided with a second contact end, wherein the first contact end and the second contact end overlap and connect.

[0010] Furthermore, the first contact end and the second contact end are connected by welding.

[0011] Furthermore, the second side also includes a connecting section and a curved section, one end of which is connected to the flange, and the other end is connected to the first contact end through the connecting section.

[0012] Furthermore, the connecting segment is a plate-like structure, and the connecting segment and the flange connected to the first contact end are located in the same plane.

[0013] Furthermore, the curved section is arc-shaped, and the arc of the curved section is 90°.

[0014] Furthermore, both the first contact end and the second contact end are plate-shaped structures, and the plane where the first contact end is located is parallel to the plane where the second contact end is located.

[0015] Furthermore, the flange is formed by stamping at a right angle relative to the plane of the base plate.

[0016] The present invention also provides a door body comprising the frame structure described in any of the above claims.

[0017] The present invention also provides a steam oven including the door body.

[0018] Another embodiment of the present invention provides a method for processing a border structure, comprising the following steps:

[0019] S1, blanking, cutting the corners of the substrate, forming a corner structure from two adjacent sides, and cutting a flap on one of the two sides of at least one corner structure, the flap being able to be bent relative to the substrate;

[0020] S2, Engraving: Engraving is performed on the front end of the flap to a depth of substrate thickness plus 0.1mm;

[0021] S3, bend the flap so that the flap is perpendicular to the substrate;

[0022] S4 stamps the substrate, bending the edge of the substrate to the same side to form a flange. The flap moves with the side to the other side until the flap contacts the flange adjacent to the other side.

[0023] S5, connect the folded piece to the flange formed on the other side.

[0024] Furthermore, step S1 also includes:

[0025] Cut small rounded transition edges at the corners where the substrate is cut and folded, and cut large rounded edges with a radius greater than 5mm at the other corners of the substrate.

[0026] Furthermore, step S3 also includes:

[0027] The small arc transition edge is stamped to form a small arc folded edge, and then the large arc edge is stamped to form a large arc folded edge.

[0028] Furthermore, the step between steps S1 and S2 includes:

[0029] S11, a protrusion is punched into the inside of the substrate;

[0030] S12, punching holes at the edge of the convex hull.

[0031] Further, step S5 involves welding the flap to the flange on the other side.

[0032] The border structure provided by this invention can produce the following beneficial effects:

[0033] The frame structure provided by this invention includes a base plate and flanges. The connecting edge between the flanges includes a first edge and a second edge. Since one end of the second edge is integrally formed with one side of the flange of the base plate, and the other end is connected to another flange, under the requirement that the total height of the first edge and the second edge is greater than 6mm, the flange height of the first edge can be made less than 6mm. This allows the first edge and the base plate to be integrally stamped during processing without the need for a separate connecting patch. The connection is more integrated, and there is no breakage during stamping. The appearance is also more beautiful. Attached Figure Description

[0034] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 An enlarged view of the frame of the steam oven provided by this invention;

[0036] Figure 2 The overall front view of the frame of the steam oven provided by the present invention;

[0037] Figure 3 The overall back view of the frame of the steam oven provided by the present invention;

[0038] Figure 4A partial view of the corner of the door frame in the blanking state provided by the present invention;

[0039] Figure 5 A structural diagram of the door frame after blanking and printing provided by the present invention;

[0040] Figure 6 This is a diagram of the bent structure of the door frame after being traced, provided by the present invention.

[0041] Figure 7 This is a final state diagram of the door frame after bending, stamping, and overlapping, as provided by the present invention.

[0042] Icons: 1-Flanged edge; 2-Base plate; 3-Second contact end; 41-First contact end; 42-Connecting section; 43-Bent section; 5-First side; 6-Second side. Detailed Implementation

[0043] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of the invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0047] In the existing technology, if the radius (R) at the corner of the frame is too small, especially when the R is less than 5mm and the flange height at the corner is greater than 6mm, the frame at the R corner may break when stamped to the target size. Therefore, to avoid this, the material between the two adjacent sides is cut off before stamping. After stamping, a notch is formed at the corner, and a patch is added to the notch to meet the height and radius requirements of the design. However, as a separate part added later, the patch cannot be integrated with the oven door panel, and the strength of the oven door frame structure will be affected in future use. Therefore, this invention uses a single plate to be cut and stamped to meet the dimensional requirements of the oven door frame structure without adding a separate patch.

[0048] like Figures 1 to 3 As shown, the present invention provides a frame structure, including a base plate 2, the edges of the base plate 2 are bent to the same side to form flanges 1, and two adjacent flanges 1 are connected by the arc-shaped connecting edge;

[0049] At least one set of connecting edges includes a first edge 5 and a second edge 6. The first edge 5 and the second edge 6 are arranged side by side along the height direction of the flange 1, and the first edge 5 is located between the second edge 6 and the base plate 2. The first edge 5, the base plate 2, and the flange 1 are integrally stamped structures. One end of the second edge 6 is integrally formed with one of the flanges 1, and the other end is connected to the other flange 1. When the radius of the connecting edge is less than 5mm, the corresponding connecting edge includes the first edge 5 and the second edge 6. The height of the first edge 5 is less than 6mm.

[0050] This invention first cuts one end of one of the flanges 1 into a deformable bending structure, namely the aforementioned second side 6, and then stamps it. Because the cutting is done at the arc position of the edge R corner, the stamping height of the first side 5 can be no more than 6mm when the R corner is 5mm. Even if the arc radius of the R corner is less than 5mm, the position of the R corner edge will not deform. At the same time, in order to compensate for the lack of strength and height, the second side 6 is set above the first side 5. The second side 6 is also bent to form two adjacent flanges 1, which are marked as the first flange 1 and the second flange 1. The first flange 1 and the second flange 1 are connected to compensate for the lack of strength and height. At the same time, the height plane of the second side 6 and the height plane of the first side 5 are in the same plane, and the sum of the heights of the second side 6 and the first side 5 is greater than 6mm, which meets the expected design requirements. Since the second side 6 is integrally formed with one of the flanges 1, no other patches are needed. The entire edge structure can be connected through different structures on the same base plate 2, which greatly increases the strength and reliability of the structure.

[0051] like Figures 1 to 3 As shown, the present invention provides a frame structure, wherein the second side 6 includes a first contact end 41, and the flange 1 connected to the second side 6 is provided with a second contact end 3, wherein the first contact end 41 is connected to the second contact end 3; wherein the first contact end 41 and the second contact end 3 are generally connected by welding, but can also be connected by other methods.

[0052] The second side 6 of the present invention has a first contact end 41, a connecting section 42 and a bending section 43. The above three structures are integrally formed with a flange 1 on the base plate 2. The bending section 43 can be bent during the processing and change the spatial position of the first contact end 41 and the connecting section 42, so that the plane where the first contact end 41 and the connecting section 42 are located is perpendicular to the plane where the integrally formed flange 1 structure is located.

[0053] In this invention, a flange 1 is formed with a second contact end 3, which is connected to a first contact end 41 on the connecting edge. The connection between the first contact end 41 and the second contact end 3 is generally a welding connection. It should be noted that the first contact end 41 and the second contact end 3 can be connected in other ways, such as by using other connection methods for bonding or by directly using a bayonet connection.

[0054] The above connection method directly eliminates the need to use patches to compensate for insufficient strength or height, saving materials and corresponding manual processing procedures.

[0055] like Figures 1 to 3 As shown, the present invention provides a frame structure, wherein the second side 6 further includes a connecting segment 42 and a curved segment 43. One end of the curved segment 43 is connected to the flange 1, and the other end is connected to the first contact end 41 through the connecting segment 42. The connecting segment 42 is a plate-like structure. The connecting segment 42 and the flange 1 connected to the first contact end 41 are located in the same plane. The curved segment 43 is arc-shaped, and the arc of the curved segment 43 is 90°.

[0056] like Figures 1 to 3 As shown, the present invention provides a frame structure, wherein the first contact end 41 and the second contact end 3 are both plate-shaped structures, and the plane where the first contact end 41 is located is parallel to the plane where the second contact end 3 is located.

[0057] The first contact end 41 and the second contact end 3 of the present invention are both rectangular flat plates. The two flat plates are attached to each other and then connected at the attachment points to maximize the connection strength of the connection edge. Since the contact area between the two planes is the largest, the weldable area is expanded to the maximum during the welding process. The larger the weldable area, the more firmly the first contact end 41 and the second contact end 3 can be connected together, resulting in higher reliability of the frame structure and a longer service life.

[0058] like Figures 1 to 3 As shown, the present invention provides a frame structure, wherein the flange 1 is formed by right-angle stamping relative to the plane of the base plate 2.

[0059] Generally, the angle formed by the first flange 1 and the second flange 1 with the base plate 2 is 90 degrees. When processing the flange 1 at the edge of the steam oven, the angle of the flange 1 is generally set at 90 degrees for the sake of aesthetics. This is also to ensure that the planes of the first contact end 41 and the second contact end 3 can be parallel. Only when the first flange 1 and the second flange 1, which are perpendicular to each other, are both perpendicular to the base plate 2 can the first plate and the second plate be parallel.

[0060] With the first flap, the second flap, and the base plate 2 perpendicular to each other, in order to make the planes where the first flat plate and the second flat plate are located parallel, and the second contact end 3 perpendicular to the plane where the first flap is located, on the one hand, the right-angle stamping technology is more mature during the stamping process, and on the other hand, the frame structure of the oven door after the right-angle stamping is completed is more aesthetically pleasing.

[0061] Existing steam ovens generally use a rectangle as the shape of the oven door. The top corners of the frame structure mentioned above are usually used at the bottom two corners of the hinge, while other processing methods are used at the other two corners.

[0062] The present invention also provides a method for processing a border structure, such as Figures 4 to 7 As shown, it includes the following steps:

[0063] S1, blanking: cut the corners of the substrate, forming a corner structure from two adjacent sides, and cutting a flap on one of the two sides of at least one corner structure, the flap being able to be bent relative to the substrate; all the above shapes need to be cut in one cut.

[0064] S2, Engraving: Engraving is performed on the front end of the flap to a depth of substrate thickness plus 0.1mm;

[0065] S3, bend the cut pieces so that they are perpendicular to the substrate;

[0066] S4, the substrate is stamped so that the edge of the substrate is bent to the same side to form a flange 1, and the flap moves to the other side along the side until the flap contacts the flange 1 adjacent to the other side.

[0067] The above operation generally uses a stamping machine to perform a stamping operation, which stamps out the upper flange on the outer structure of the substrate. Since the previous fold has been bent, the fold can directly contact the adjacent folded edge.

[0068] S5, connect the folded piece to the flange 1 formed on the other side.

[0069] Step S1 also includes cutting the corners at the location where the folded piece is cut on the substrate to form a small arc transition edge, and cutting the other corners of the substrate into large arc edges with a radius greater than 5mm.

[0070] Step S4 further includes stamping the small arc transition edge to form a small arc flange 1, and then stamping the large arc edge to form a large arc flange 1.

[0071] Between steps S1 and S2, there are also steps S11, punching a protrusion into the inside of the substrate; and S12, punching a hole at the edge of the protrusion.

[0072] Step S5 involves welding the flap to the flange 1 on the other side. The two are typically thin plates, which are then bonded together and welded at the bonding point.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A border structure, characterized in that, Includes a base plate (2), the edges of which are bent to the same side to form flanges (1), and two adjacent flanges (1) are connected by an arc-shaped connecting edge; At least one set of the connecting edges includes a first edge (5) and a second edge (6). The first edge (5) and the second edge (6) are arranged side by side along the height direction of the flange (1), and the first edge (5) is located between the second edge (6) and the base plate (2). The first edge (5), the base plate (2) and the flange (1) are integral stamping structures. One end of the second edge (6) is integrally formed with one of the flanges (1), and the other end is connected to the other flange (1).

2. The frame structure according to claim 1, characterized in that... When the radius of the connecting edge is less than 5mm, the corresponding connecting edge includes the first edge (5) and the second edge (6).

3. The frame structure according to claim 1, characterized in that... The height of the first side (5) is less than 6mm, and the distance between the outer edge of the second side (6) and the surface of the base plate (2) is greater than 6mm.

4. The frame structure according to claim 1, characterized in that... The second side (6) includes a first contact end (41), and the flange (1) connected to the second side (6) is provided with a second contact end (3), and the first contact end (41) and the second contact end (3) are connected in an overlapping manner.

5. The frame structure according to claim 4, characterized in that... The first contact end (41) and the second contact end (3) are connected by welding.

6. The frame structure according to claim 4, characterized in that... The second side (6) also includes a connecting section (42) and a curved section (43). One end of the curved section (43) is connected to the flange (1), and the other end is connected to the first contact end (41) through the connecting section (42).

7. The frame structure according to claim 6, characterized in that... The connecting segment (42) is a plate-shaped structure, and the connecting segment (42) and the flange (1) connected to the first contact end (41) are located in the same plane.

8. The frame structure according to claim 6, characterized in that... The curved section (43) is arc-shaped and the arc of the curved section (43) is 90°.

9. The frame structure according to claim 4, characterized in that... Both the first contact end (41) and the second contact end (3) are plate-shaped structures, and the plane where the first contact end (41) is located is parallel to the plane where the second contact end (3) is located.

10. The frame structure according to claim 1, characterized in that... The flange (1) is formed by stamping at a right angle relative to the plane of the base plate (2).

11. A door, characterized in that, Includes the border structure as described in any one of claims 1-10.

12. A steam oven, characterized in that, Includes the door body as described in claim 11.

13. A method for processing a border structure, characterized in that, Includes the following steps: S1, blanking, cutting the corners of the substrate, forming a corner structure from two adjacent sides, and cutting a flap on one of the two sides of at least one corner structure, the flap being able to be bent relative to the substrate; S2, Engraving: Engraving is performed on the front end of the flap to a depth of substrate thickness plus 0.1mm; S3, bend the flap so that the flap is perpendicular to the substrate; S4, the substrate is stamped so that the edge of the substrate is bent to the same side to form a folded edge, and the folded piece moves to the other side along the side until the folded piece contacts the adjacent folded edge on the other side; S5, connect the folded piece to the folded edge formed on the other side.

14. The frame structure processing method according to claim 13, characterized in that, Step S1 also includes: Cut the corners at the location where the folded piece is cut on the substrate to form a small rounded transition edge, and cut the remaining corners of the substrate into a large rounded edge with a radius greater than 5mm.

15. The frame structure processing method according to claim 14, characterized in that, Step S3 also includes: The small arc transition edge is stamped to form a small arc folded edge, and then the large arc edge is stamped to form a large arc folded edge.

16. The frame structure processing method according to claim 13, characterized in that, The step between steps S1 and S2 is as follows: S11, a protrusion is punched into the inside of the substrate; S12, punching holes at the edge of the convex hull.

17. The frame structure processing method according to claim 13, characterized in that, Step S5 is as follows: The flap is welded to the folded edge on the other side.

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