Stamping sheet metal box with folded thickened edges

Abstract

The utility model discloses a kind of stamping sheet metal box body with flange thickening, including front panel, with the center hole of penetration, there are several through holes in annular array around center hole, through hole is connected by radial slit between center hole;Side wall, along the integral vertical connection of one circle of front panel;U-shaped flange, side wall is integrally connected with U-shaped flange on the side away from front panel, U-shaped flange is attached to the outer wall of side wall;Inner recess area, the outer wall of side wall exists inner recess area, outer convex area, inner recess area is formed by stamping, outer convex area is formed by relatively from the inner recess area of inner recess area, there is U-shaped flange attached to the bottom surface of inner recess area;The inner recess depth of inner recess area is equal to the thickness of U-shaped flange. U-shaped flange and side wall of the utility model are integrally thickened, greatly improve overall structural strength and deformation resistance. Inner recess area depth and flange thickness are consistent, ensure that assembly surface is flat, improve attachment stability.

Description

Technical Field

[0001] This utility model relates to the field of stamping production, specifically to a stamped sheet metal box body with thickened folded edges. Background Technology

[0002] Stamped sheet metal boxes are widely used in electronic equipment and mechanical components due to their high efficiency and controllable cost. However, existing sheet metal boxes are mostly formed using simple bending processes, resulting in limited structural strength at the opening edges and side panels. Long-term use or exposure to external forces can easily lead to deformation, affecting overall stability. Furthermore, uneven contact surfaces and protruding fasteners often result in loose fits and insufficient assembly precision during assembly. In addition, some folded edge designs suffer from poor folding stability and are prone to tearing due to pressure against the sheet metal edges, making it difficult to balance structural strength and assembly convenience, and thus failing to meet the demands of high-precision applications. Utility Model Content

[0003] The problem to be solved by this utility model is to provide a stamped sheet metal box body with thickened folded edges.

[0004] To solve the above problems, this utility model provides a stamped sheet metal box body with thickened folded edges. To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problems is as follows: A stamped sheet metal box body with thickened folded edges includes: a front panel having a through central hole, with a plurality of through holes arranged in a ring around the central hole, the through holes being connected to the central hole by radial seams; a side panel integrally and vertically connected to a ring around the front panel; a U-shaped folded edge integrally connected to the side of the side panel away from the front panel, the U-shaped folded edge fitting against the outer wall of the side panel; a concave area, the outer wall of the side panel having a concave area and a convex area, the concave area being formed by stamping, the convex area being formed by the concave area being opposite to the concave area, and a U-shaped folded edge fitting against the bottom surface of the concave area; the concave depth of the concave area is equal to the thickness of the U-shaped folded edge.

[0005] As a further improvement of this utility model, the bottom contour of the concave area is rectangular, and the shape of the convex area is U-shaped.

[0006] As a further improvement of this utility model, the bottom surface of the concave region is provided with a number of fixing holes.

[0007] As a further improvement of this utility model, the fixing hole is a countersunk hole.

[0008] As a further improvement of this utility model, the side panel includes upper and lower side panels and a vertical side panel, and the concave area is located on one of the upper and lower side panels.

[0009] As a further improvement of the present utility model, the junction between the U-shaped flange and the side wall panel is a junction line, and the length of the junction line is at least four times the protruding dimension of the U-shaped flange.

[0010] As a further improvement of the present utility model, the junction between the U-shaped flange and the side wall panel is a junction line, and the two ends of the junction line do not contact the apex angles of the side wall panel.

[0011] As a further improvement of the present utility model, both ends of the vertical side wall panel have right-angled flanges integrally and perpendicularly connected, and the right-angled flanges are fixed to both ends of the upper and lower side wall panels by fasteners.

[0012] As a further improvement of the present utility model, the inner diameter of the through hole is smaller than the inner diameter of the central hole, and the width of the radial slit is smaller than the inner diameter of the through hole.

[0013] As a further improvement of the present utility model, the front contour of the front panel is in the shape of a Chinese character 'Jia'.

[0014] The beneficial technical effects of adopting the stamping sheet metal box body with thickened flanges in this application are as follows: The U-shaped flange is integrally connected with the side wall panel and fits its outer wall, forming a thickened structure at the opening edge of the box body and a part of the side wall panel, effectively enhancing the overall structural strength, reducing the risk of deformation during long-term use or under external force, and ensuring the shape stability.

[0015] The concave depth of the concave area is the same as the thickness of the U-shaped flange, and the U-shaped flange fits on the bottom surface of the concave area, making the assembly surface of the box body flat, avoiding the problem of uneven contact surfaces caused by flanges or fixing parts, enhancing the fitting tightness with external components, and ensuring the assembly stability.

[0016] The concave area and the convex area of the side wall panel are integrally formed into a U-shaped flange by stamping, which not only ensures the connection reliability between the flange and the plate body, avoids tearing defects during folding, but also adapts to the high-efficiency characteristics of stamping production, without additional complex processes, taking into account the production convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a perspective view of an embodiment of the present utility model; Figure 2 is a perspective view of an embodiment of the present utility model; Figure 3 It is the front view of an embodiment of the present utility model.

[0019] 1 - Central hole; 2 - Through hole; 3 - Radial seam; 4 - Upper and lower side panels; 5 - Vertical side panel; 6 - Right-angle flange; 7 - U-shaped flange; 8 - Concave area; 9 - Convex area; 10 - Fixing hole. Specific embodiments

[0020] The following combines specific embodiments to further elaborate on the content of the present utility model: To achieve the purpose of the present utility model, refer to Figures 1 to 3 , a stamping sheet metal box body with flanged thickening, comprising: a front panel with a through central hole 1, and a plurality of through holes 2 are annularly arrayed around the central hole 1, and the through holes 2 are connected to the central hole 1 through radial seams 3. A side panel is integrally and perpendicularly connected along the perimeter of the front panel. A U-shaped flange 7 is integrally connected to the side of the side panel facing away from the front panel, and the U-shaped flange 7 fits on the outer wall of the side panel. A concave area 8 is recessed from the outside to the inside, and there are concave areas 8 and convex areas 9 on the outer walls of some side panels. The convex area 9 is formed opposite to the concave area 8, and a part of the U-shaped flange 7 fits on the bottom surface of the concave area 8. The concave depth of the concave area 8 is equal to the thickness of the U-shaped flange 7, and the thickness of the U-shaped flange 7 is the sheet thickness. The cross-sectional contour of the U-shaped flange 7 is U-shaped, which is obtained after the sheet is subjected to U-shaped bending.

[0021] The beneficial effects of adopting the above technical solutions are as follows: First, the U-shaped flange 7 is a flange bent 180°, and the local part of the box body at the U-shaped flange 7 is thickened, which is equivalent to doubling the original thickness. At this time, the structural strength of the opening edge of the box body is greatly enhanced, which is beneficial to maintaining the overall shape stability of the box body. Second, a part of the U-shaped flange 7 is folded outward, and the concave depth of the concave area 8 here is exactly the sheet thickness of the box body. In this way, the outer wall of the U-shaped flange 7 in the concave area 8 coincides with the outer walls of the upper and lower side panels outside this concave area 8 in the same spatial plane. When this sheet metal box is assembled with the outside, the outer walls of the convex area 9 formed opposite to the concave area 8 and the outer wall of the U-shaped flange 7 both form surface contact fixation with the fixed position, which is convenient for the box body to be stably placed. Finally, the screw participating in the overall fixation of the box body needs to pass through the fixing hole 10 in the concave area 8. Even if the head of the screw has a certain outward protrusion, as long as this protrusion amount does not exceed the sheet thickness dimension, it still does not affect the stable surface contact fixation form of the box body.

[0022] In some other embodiments of the present utility model, the bottom contour of the concave area 8 is rectangular, and the shape of the convex area 9 is U-shaped.

[0023] "凵" is a Chinese character. It is a Chinese character, and its meaning is the same as "坎". Here, it means to express that the shape of the convex area 9 is similar to the shape formed by three long rectangular strips connected vertically in sequence.

[0024] The opening of the U-shaped part has a U-shaped folded edge 7.

[0025] The beneficial effects of adopting the above technical solution are: the shape of the convex area 9 is set as U-shaped, so that the U-shaped fold 7 can fit completely with the bottom surface of the concave area 8 without assembly gap. At the same time, the U-shaped structure of the convex area 9 can disperse stress when subjected to force, avoid local stress concentration, and further enhance the overall structure and resistance to deformation.

[0026] In some other embodiments of this utility model, the bottom surface of the concave region 8 has a plurality of fixing holes 10.

[0027] The beneficial effects of adopting the above technical solution are: it provides a direct installation interface for the box body, making it easy to fix the box body to the external structure with fasteners, while the concave space can accommodate the screw head, avoiding the outward protrusion of the mounting parts from affecting the flatness of the assembly surface.

[0028] In some other embodiments of this utility model, the fixing hole 10 is a countersunk hole.

[0029] The beneficial effects of adopting the above technical solution are: the countersunk hole allows the screw head to be embedded, and even if the screw head protrudes to a certain extent, as long as the amount of protrusion does not exceed the thickness of the plate, it will not affect the stable surface contact fixing method of the box.

[0030] In some other embodiments of this utility model, the side panel includes upper and lower side panels 4 and vertical side panels 5, and the recessed area 8 is located on one of the upper and lower side panels.

[0031] The top and bottom side panels of the stamped sheet metal box with thickened folded edges are called upper and lower side panels 4, and the side panels on both sides of the stamped sheet metal box with thickened folded edges are called vertical side panels 5.

[0032] In some other embodiments of this utility model, the junction of the U-shaped folded edge 7 and the side panel is the junction line, and the length of the junction line is at least four times, or even ten times, the protrusion size of the U-shaped folded edge 7.

[0033] The beneficial effects of adopting the above technical solution are: controlling the degree of folding out of the U-shaped fold 7, ensuring the stability of the U-shaped fold 7 after folding; ensuring that the folded part has sufficient connection length and attachment area, improving the folding stability and anti-peeling ability of the U-shaped fold 7, and preventing it from loosening or deforming due to force during use.

[0034] In some other embodiments of this utility model, the junction of the U-shaped folded edge 7 and the side panel is the junction line, and the two ends of the junction line do not contact the top corner of the side panel.

[0035] The beneficial effects of adopting the above technical solution are as follows: not the entire length of each side panel is folded as the U-shaped hem 7, which avoids the extrusion between the two ends of the U-shaped hem 7 and the edge of the side panel during folding, thus preventing tearing. This improves the reliability of the forming process of the U-shaped hem 7 and the structural integrity of the box body edge.

[0036] In some other embodiments of the present utility model, both ends of the vertical side panel 5 have right-angled hems 6 integrally and perpendicularly connected, and the right-angled hems 6 are fixed to both ends of the upper and lower side panels 4 by fasteners.

[0037] The beneficial effects of adopting the above technical solution are as follows: it is convenient to form a box body with an opening from a flat plate after stamping and bending.

[0038] In some other embodiments of the present utility model, the inner diameter of the through hole 2 is smaller than the inner diameter of the central hole 1, and the width of the radial slit 3 is smaller than the inner diameter of the through hole 2.

[0039] A fan can be coaxially arranged in the central hole 1, and the through hole 2 is for screws to pass through, which is convenient for fixing the protective net covering the central hole. The design of the radial slit 3 provides an appropriate deformation range around the central hole.

[0040] The beneficial effects of adopting the above technical solution are as follows: it provides a certain deformation compensation space, avoids the deformation of the plate body caused by installation stress, and ensures that the through hole 2 itself has sufficient edge strength to prevent cracking during fastening.

[0041] In some other embodiments of the present utility model, the front contour of the front panel is in the shape of a Chinese character 'Jia'.

[0042] As Figure 3 shown, that is, the edge contour of the front panel is not a simple rectangle.

[0043] The beneficial effects of adopting the above technical solution are as follows: it is convenient to cooperate with other structures for installation or optimize the space layout, and at the same time, the non-simple rectangular shape also helps to enhance the structural rigidity of the front panel itself.

[0044] The stamping sheet metal box body with thickened hems of the present application is suitable as an electric control box or a servo housing that needs to be stably fixed and has a built-in cooling fan.

[0045] The above embodiments are only for illustrating the technical concept and features of the present utility model, and the purpose is to enable those who are familiar with this technology to understand the content of the present utility model and implement it. It cannot be used to limit the protection scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A stamped sheet metal box body with thickened folded edges, characterized in that, Comprising: A front panel with a through central hole, around which a number of through holes are arranged in a circular array, and the through holes are connected to the central hole by radial slits; A side enclosure panel integrally and vertically connected along the circumference of the front panel; A U-shaped flange, which is integrally connected to the side opposite to the front panel of the side enclosure panel, and the U-shaped flange is fitted to the outer wall of the side enclosure panel; A concave area, there are concave and convex areas on the outer wall of the side enclosure panel, the concave area is formed by stamping, the convex area is formed opposite to the recessed concave area, and there is a U-shaped flange fitted to the bottom surface of the concave area; The depth of the concave area is equal to the thickness of the U-shaped flange.

2. The stamped sheet metal box body with folded and thickened edges according to claim 1, characterized in that: The bottom surface contour of the concave area is rectangular, and the shape of the convex area is U-shaped.

3. The stamped sheet metal box body with folded and thickened edges according to claim 1, characterized in that: The bottom surface of the concave area has a number of fixing holes.

4. The stamped sheet metal box body with folded and thickened edges according to claim 3, characterized in that: The fixing holes are countersunk holes.

5. The stamped sheet metal box body with folded and thickened edges according to claim 1, characterized in that: The side enclosure panel includes upper and lower side enclosure panels and vertical side enclosure panels, and the concave area is located on one of the upper and lower side enclosure panels.

6. The stamped sheet metal box body with folded and thickened edges according to claim 1, characterized in that: The junction of the U-shaped flange and the side enclosure panel is a junction line, and the length of the junction line is at least four times the protruding dimension of the U-shaped flange.

7. The stamped sheet metal box body with folded and thickened edges according to claim 1, characterized in that: The junction of the U-shaped flange and the side enclosure panel is a junction line, and the two ends of the junction line do not contact the top corners of the side enclosure panel.

8. The stamped sheet metal box body with folded and thickened edges according to claim 5, characterized in that: Both ends of the vertical side enclosure panel have integrally and vertically connected right-angled flanges, and the right-angled flanges are fixed to both ends of the upper and lower side enclosure panels by fasteners.

9. The stamped sheet metal box body with folded and thickened edges according to claim 1, characterized in that: The inner diameter of the through hole is smaller than the inner diameter of the central hole, and the width of the radial slit is smaller than the inner diameter of the through hole.

10. The stamped sheet metal box body with folded and thickened edges according to claim 1, characterized in that: The front contour of the front panel is shaped like the Chinese character 'Jia'.

Images