A flange connecting structure, a flange mold, a production device and an angle assembling machine

Abstract

The application discloses a flange connecting structure, a flange die, a production equipment and a corner assembling machine, which comprises a plurality of sectional flanges connected in sequence; the two ends of each sectional flange are provided with clamping parts, i.e. a first clamping part and a second clamping part; in the complete flange connecting state, the first clamping part buckles below the second clamping part on the adjacent sectional flange, and the second clamping part is arranged above the first clamping part on the other adjacent sectional flange; the complete flange is connected and spliced in sequence by utilizing the elasticity of the material itself to keep fixed. The connecting structure of the flange is improved, the sectional flange is connected and interlocked by the structure of the sectional flange itself, then the sectional flange is connected and fixed in sequence, no additional connecting structure and additional connecting tool are needed for assembly, the whole connecting process can be realized in a standard process, the machine is replaced, and the efficiency is higher.

Description

Technical Field

[0001] This invention relates to the field of flange technology, specifically to a flange connection structure, flange mold, production equipment, and corner assembly machine. Background Technology

[0002] Flanges are common fasteners in the industrial field. Taking duct flanges as an example, their structure is mainly square or round. The main installation method is a segmented design, which uses multiple flange segments to form a closed structure by inserting them into the duct. Bolts or rivets are used for fixing. This method has low installation efficiency in practical applications and is difficult to install in some special places. Therefore, it is necessary to improve the connection structure of the flange. Summary of the Invention

[0003] The purpose of this invention is to provide a flange connection structure to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a flange connection structure, comprising multiple split flange segments connected end to end;

[0005] Both ends of the segmented flange are equipped with snap-fit ​​parts, namely the first snap-fit ​​part and the second snap-fit ​​part. In the complete flange connection state, the first snap-fit ​​part is fastened to the lower part of the second snap-fit ​​part on the adjacent segmented flange, and the second snap-fit ​​part is placed above the first snap-fit ​​part on the other side of the adjacent segmented flange. By utilizing the elasticity of its own material, it is kept fixed, and the complete flange is spliced ​​by connecting them in sequence.

[0006] Preferably, both the first snap-fit ​​portion and the second snap-fit ​​portion are located at the extended end of the flange neck.

[0007] Preferably, the first snap-fit ​​part is a convex beveled structure, and the second snap-fit ​​part is a beveled structure.

[0008] Preferably, it includes four separate flange sections, which are connected end to end to form a rectangular flange structure.

[0009] Preferably, the second snap-fit ​​portion is obtained by rotating the first snap-fit ​​portion by 90°;

[0010] The first snap-fit ​​portion includes an outwardly protruding beveled structure on one side, and a beveled structure connected to one side of the beveled structure;

[0011] In the connected state, the angled structure of the flange itself engages with the lower edge of the angled structure of the adjacent segment flange, and the angled structure of the adjacent segment flange engages with the lower edge of the angled structure of the flange itself.

[0012] Preferably, the first snap-fit ​​portion has an angled structure with the ends cut flat.

[0013] Preferably, a limiting part is provided at both ends of the segmented flange. The limiting part includes a limiting plate at one end of the segmented flange and a limiting groove at the other end. When adjacent segmented flanges are connected end to end, the limiting plate is inserted into the adjacent limiting groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] This invention improves the flange connection structure by achieving interlocking through the structure of the segmented flange itself, thus connecting the ends together for complete fixation. No additional connection structure or additional connection tools are required for assembly. The overall connection process can be standardized and replaced by machines, resulting in higher efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the flange assembly angle in the first case;

[0019] Figure 4 This is a schematic diagram of the flange assembly angle in the second case;

[0020] Figure 5 This is a schematic diagram of die stamping. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and 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.

[0022] Please refer to the figure. The design concept of this embodiment is to use the structure of the segmented flange itself to achieve connection, thereby forming a complete flange structure by assembling the corners.

[0023] The segmented flange itself consists of a flange face 1 and a flange neck 2. The two sides of the flange neck 2 extend downward to form flange grooves for inserting the four sides of the air inlet pipe. The end of the flange face 1 is provided with a fixing hole, and the adjacent flanges.

[0024] As shown in the figure, the flange neck 2 in the segmented flange is located on the inside. Therefore, in order to maintain the overall compactness and aesthetics of the flange, the connection structure is set on the flange neck 2.

[0025] Reference Figure 1 as well as Figure 2 As shown, taking a rectangular duct as an example, when assembling the corners of the segmented flanges, the inner flange neck 2 end face needs to be cut into a 45° angle so as to splice out a 90-degree rectangle.

[0026] exist Figure 1 In this design, the connecting part includes two snap-fit ​​parts located at both ends of the segmented flange: a first snap-fit ​​part 21 and a second snap-fit ​​part 22. The second snap-fit ​​part 22 maintains a 45° beveled structure. It is worth noting that this embodiment only uses a rectangular flange as an example and does not impose a specific "45°" limitation on the angle of the beveled structure. Those skilled in the art should understand that if flanges of other shapes are used, this angle should be adjusted accordingly. Even for circular flanges, the "beveled structure" can be modified into an "arc-shaped structure," which is also within the scope of protection of this invention.

[0027] During connection, the first snap-fit ​​part 21 snaps onto the second snap-fit ​​part 22. In order to maintain the neatness and appearance of the end face, it snaps onto the bottom of the second snap-fit ​​part 22.

[0028] Therefore, theoretically, the first snap-fit ​​part 21 can maintain its initial shape, i.e., a rectangular shape. However, in order to provide guidance and fault tolerance during installation, a section of its corners is cut off to give it an angled structure. The root of this angled structure is folded downwards by stamping to create a certain allowance, giving it a sloping gradient. This structure provides better guidance when inserted. The elastic stress of the flange material itself is used to maintain fixation (similar to the concept of interference fit).

[0029] Reference shape after connection Figure 3 As shown (this is a view from the bottom up), pre-drilled holes can be made on the snap-fit ​​part for optional rivet positioning (whether to choose depends on the physical properties of the material itself; materials with good elasticity do not require additional fixing).

[0030] Refer to Figure 2 The structure shown, Figure 1 The structure enables the realization of the basic concept of the present invention. In another preferred embodiment of the present invention, the following is adopted: Figure 2 The structure provides higher connection strength and higher connection precision.

[0031] Referring to the figure, the first snap-fit ​​part 21 and the second snap-fit ​​part 22 have the same structure. However, they are distributed at different angles only because they need to be combined to form a rectangular air duct. That is, the first snap-fit ​​part 21 and the second snap-fit ​​part 22 are at a 90° angle to each other.

[0032] As shown in the diagram, taking the first snap-fit ​​part 21 as an example (the second snap-fit ​​part has the same structural relationship, which will not be repeated below), it includes the angled structure A and the hypotenuse structure B; the concept behind this design is... Figure 1 The superposition of the Chinese scheme, Figure 1 The proposed solution uses a combination of angles and hypotenuses at one end to complete the connection; while Figure 2 The design concept is to use a combination of two sets of oblique angles and hypotenuses to complete the connection at one end.

[0033] Structure reference after connection Figure 4 The adjacent segmented flanges shown have their bevels fastened below the bevels, and each connection end is fixed with two sets of bevel-bevel combinations.

[0034] Additionally, it is worth mentioning that a limiting part is provided to ensure connection strength, the structure of which is shown in the figure. It includes a limiting plate 23 located at one end of the segmented flange and a limiting groove 24 located at the other end; the limiting plate 23 extends from one side of the flange neck. Figure 2 As shown.

[0035] When connecting the two ends, the limiting plate 23 is inserted into the limiting groove 24, and then folded 90 degrees to hook and fix it.

[0036] This embodiment also discloses a flange production equipment, mainly for processing the above-mentioned segmented flange;

[0037] The main process is as follows:

[0038] First, the flange neck end of the flange to be manufactured is cut. Depending on the desired shape, it can be cut into... Figure 1 The shape is still Figure 2 The shape;

[0039] After cutting, use a stamping die to fold the beveled portion downwards with a certain allowance, causing it to curl downwards. (Refer to...) Figure 5 As shown, after folding, an overlapping surface is formed.

[0040] In another embodiment, a continuous stamping process can be used to complete the cutting and folding in two steps, or the cutting can be done by folding first.

[0041] Regarding cutting: Refer to... Figure 2 As shown, its essence is to cut off a corner of the original rectangular flange neck end face to form the structure shown in the figure; therefore, its mold structure is the same as its edge structure.

[0042] This embodiment also discloses a device for assembling corners using the above-mentioned segmented flanges;

[0043] Taking a rectangular flange as an example, it includes four corner assembly stations for placing four segmented flanges. After the stations, linear drive components such as cylinders, motors, and hydraulic cylinders are connected. When the drive components are started, the four segmented flanges move in opposite directions, the snap-fit ​​parts snap into each other, the limiting parts are inserted, and finally, at the position of the limiting part, a separate drive structure is used to fold it 90° to complete the corner assembly and realize the complete flange structure.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flange connection structure, characterized in that: It is composed of multiple segmented flanges connected end to end; Both ends of the segmented flange are provided with snap-fit ​​parts, namely the first snap-fit ​​part and the second snap-fit ​​part. In the complete flange connection state, the first snap-fit ​​part is fastened to the lower part of the second snap-fit ​​part on the adjacent segmented flange, and the second snap-fit ​​part is placed above the first snap-fit ​​part on the other side of the adjacent segmented flange. By utilizing the elasticity of its own material, it is kept fixed and connected in sequence to achieve the splicing of the complete flange. At the corner of the first snap-fit ​​part, a section is cut off to give it an angled structure. The root of the angled structure is folded downward by a certain amount through stamping to give it an inclined slope. The first snap-fit ​​portion includes an outwardly protruding beveled structure on one side, and a beveled structure connected to one side of the beveled structure; In the connected state, the angled structure of the flange itself engages with the lower part of the angled structure of the adjacent segment flange, and the angled structure of the adjacent segment flange engages with the lower part of its own angled structure. The second snap-fit ​​part is obtained by rotating the first snap-fit ​​part by 90°; The first snap-fit ​​part has an angled structure with flattened ends; It is also provided with limiting parts at both ends of the segmented flange. The limiting parts include a limiting plate provided at one end of the segmented flange and a limiting groove provided at the other end. When adjacent segmented flanges are connected end to end, the limiting plate is inserted into the adjacent limiting groove.

2. The flange connection structure according to claim 1, characterized in that: Both the first and second snap-fit ​​parts are located at the extended end of the flange neck.

3. The flange connection structure according to claim 1, characterized in that: It includes four segmented flanges, which are connected end to end to form a rectangular flange structure.

4. A flange production equipment, characterized in that, The method for producing a segmented flange as described in any one of claims 1 to 3 includes a stamping process, in which the segmented flange is placed on a mold pad, the excess is first stamped off, and then pressure is applied to fold the root of the beveled structure of the snap-fit ​​part down a certain height in the longitudinal direction.

5. A flange mold, characterized in that, Production equipment for a flange as described in claim 4.

6. A flange corner assembly machine, characterized in that, Angle bracket for use in the flange connection structure according to any one of claims 1-3.

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