A flange ear positioning device

Abstract

A flange lug positioning device is provided, wherein the positioning frame (1) uses the precision hole on the product engine frame as the reference hole, and the positioning frame (1) is provided with a suspension joint (102) for inserting a first positioning pin (3) to achieve positioning of the positioning frame (1) and the product engine frame; one end of the positioning frame (1) is provided with a lug bushing (2) that pre-fits with the inner surface of the product flange, and an outer circular positioning hole (204) is opened on the circumferential surface of the lug bushing (2) to achieve positioning fit between the product flange and the lug bushing (2) by using a second positioning pin (5); at the same time, a lug positioning hole (103) is also opened on the positioning frame (1) to achieve quick positioning of the lug bushing (2) by using a quick clamp (4). The present invention effectively expands the application range of flanges, reduces design and manufacturing costs, makes them more economical and efficient, and thus more effectively improves the working efficiency of flange installation and positioning on missiles or aircraft.

Description

Technical Field

[0001] This invention relates to the field of mechanical structure technology, and in particular to a flange lug type positioning device. Background Technology

[0002] In the implementation of mechanical structure engineering, the most common method for flange assembly is the pre-drilled hole and end face mating connection. This method requires pre-drilling precision holes for both the assemblies and the parts being assembled, so that they can be assembled and installed on the positioning end face. However, this method can only meet the needs of pre-drilling holes on a machine tool when the external dimensions are not large. For the connection of large or super-large components with small parts, since the large components are difficult to process on a machine tool, the pre-drilled hole method is not applicable in this case. It is difficult to meet the flange installation and positioning conditions on missiles or aircraft, and it does not have the function of repeated positioning. At the same time, the positioning mechanism cannot move to avoid the product and facilitate disassembly. Summary of the Invention

[0003] The technical problem solved by the present invention is to provide a flange lug type positioning device to solve the problems in the background art mentioned above.

[0004] The technical problem solved by this invention is achieved by the following technical solution:

[0005] A flange ear-type positioning device includes a positioning frame (1), an ear-type bushing (2), a first positioning pin (3), a quick clamp (4), and a second positioning pin (5). The positioning frame (1) uses a precision hole on the product engine frame as a reference hole. A suspension joint (102) is provided on the positioning frame (1). The first positioning pin (3) is inserted into the frame suspension joint and the suspension joint (102) provided on the product engine frame to realize the positioning of the positioning frame (1) and the product engine frame. An ear-type bushing (2) that is pre-fitted with the inner surface of the product flange is provided at one end of the positioning frame (1). An outer circular positioning hole (204) is opened on the circumferential surface of the ear-type bushing (2). The second positioning pin (5) is used to position and fit the product flange and the ear-type bushing (2) to prevent the product flange and the ear-type bushing (2) from rotating around the axis. An ear-type positioning hole (103) is also opened on the positioning frame (1) to realize quick positioning of the ear-type bushing (2) through the quick clamp (4).

[0006] In this invention, the positioning frame (1) includes a frame plate (101), a suspension connector (102), an ear-type positioning hole (103), and a clearance hole (104). The frame plate (101) is composed of a vertical plate and a horizontal plate. The suspension connector (102) on the horizontal plate is matched with the end face of the suspension connector on the product engine frame and positioned by a No. 1 positioning pin (3) to ensure the verticality requirement of the vertical plate and the horizontal plate of the positioning frame (1). A clearance hole (104) is opened at the upper part of the vertical plate. The clearance hole (104) provides operating space for pneumatic drilling when assembling the product. An ear-type positioning cavity is opened on the vertical plate below the clearance hole (104). Three ear-type positioning holes (103) are opened in the ear-type positioning cavity, two of which are precision positioning holes and one is an enlargement hole to ensure that the quick clamp (4) is installed in place when assembling and positioning.

[0007] In this invention, the ear bushing (2) includes an outer circular surface (201), an ear piece (202), an ear piece positioning hole (203), and an outer circular surface positioning hole (204). The outer circular surface (201) of the ear bushing is pre-fitted with the inner surface of the product flange. The outer circular surface positioning hole (204) is used to position the process hole on the product flange with a No. 2 positioning pin (5). The ear piece (202) is provided with an ear piece positioning hole (203). The ear piece positioning hole (203) and the ear positioning hole (103) on the positioning frame (1) are positioned and clamped by a quick clamp (4).

[0008] In this invention, two sets of suspension joints (102) are symmetrically arranged on the horizontal plate.

[0009] In this invention, the openings (104) are arranged symmetrically on the upper part of the upright plate.

[0010] In this invention, the ear positioning hole (203) and the ear positioning hole (103) are arranged in a one-to-one correspondence.

[0011] In this invention, the end with the ear bushing (2) is a reference surface that fits against the vertical end face of the positioning frame (1), and then the ear plate positioning hole (203) and the ear positioning hole (103) are clamped and connected by a quick clamp (4).

[0012] In this invention, after the product flange and the flange lug positioning device are properly installed and positioned, the position of the product flange is basically at the theoretical position of the missile body. Then, drilling is performed. After completion, the first positioning pin (3) is removed, the positioning frame (1) and the pre-installed product flange (with lug bushing (2)) are removed, and finally the product flange is removed and connected to the missile body to realize the flange installation and positioning on the missile or aircraft.

[0013] Beneficial effects: This invention effectively expands the application scope of flanges, reduces design and manufacturing costs, making them more economical and efficient, and thus more effectively improves the work efficiency of flange installation and positioning on missiles or aircraft. Attached Figure Description

[0014] Figure 1 This is an isometric view of a preferred embodiment of the present invention.

[0015] Figure 2 This is an isometric view of the positioning frame in a preferred embodiment of the present invention.

[0016] Figure 3 This is an isometric view of the ear bushing in a preferred embodiment of the present invention.

[0017] Figure 4 This is a front view of a preferred embodiment of the present invention.

[0018] Figure 5 This is a left view of a preferred embodiment of the present invention.

[0019] Figure 6 This is a top view of a preferred embodiment of the present invention. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0021] See Figures 1-6 A flange ear-type positioning device includes a positioning frame (1), an ear bushing (2), a first positioning pin (3), a quick clamp (4), and a second positioning pin (5). The positioning frame (1) uses the precision hole on the product engine frame as the reference hole. A suspension joint (102) is provided on the positioning frame (1). The first positioning pin (3) is inserted into the frame suspension joint and the suspension joint (102) provided on the product engine frame to realize the positioning of the positioning frame (1) and the product engine frame. An ear bushing (2) that is pre-fitted with the inner surface of the product flange is provided at one end of the positioning frame (1). An outer circular positioning hole (204) is opened on the circumferential surface of the ear bushing (2). The second positioning pin (5) is used to position and fit the product flange and the ear bushing (2) to prevent the product flange and the ear bushing (2) from rotating around the axis. An ear positioning hole (103) is also opened on the positioning frame (1) to realize quick positioning of the ear bushing (2) through the quick clamp (4).

[0022] In this embodiment, the positioning frame (1) includes a frame plate (101), a suspension connector (102), an ear-type positioning hole (103), and a clearance hole (104). The frame plate (101) is composed of a vertical plate and a horizontal plate. The suspension connector (102) on the horizontal plate is matched with the end face of the suspension connector on the product engine frame and positioned by a No. 1 positioning pin (3) to ensure the verticality requirements of the vertical plate and the horizontal plate of the positioning frame (1). A clearance hole (104) is opened at the upper part of the vertical plate. The clearance hole (104) provides operating space for pneumatic drilling when assembling the product. An ear-type positioning cavity is opened on the vertical plate below the clearance hole (104). Three ear-type positioning holes (103) are opened in the ear-type positioning cavity, two of which are precision positioning holes and one is an enlargement hole to ensure that the quick clamp (4) is installed in place when assembling and positioning.

[0023] In this embodiment, the ear bushing (2) includes an outer circular surface (201), an ear piece (202), an ear piece positioning hole (203), and an outer circular surface positioning hole (204). The outer circular surface (201) of the ear bushing is pre-fitted with the inner surface of the product flange. The outer circular surface positioning hole (204) is used to position the process hole on the product flange with a No. 2 positioning pin (5). The ear piece (202) is provided with an ear piece positioning hole (203). The ear piece positioning hole (203) and the ear positioning hole (103) on the positioning frame (1) are positioned and clamped by a quick clamp (4).

[0024] In this embodiment, two sets of suspension joints (102) are symmetrically arranged on the horizontal plate.

[0025] In this embodiment, the openings (104) are arranged symmetrically on the upper part of the upright plate.

[0026] In this embodiment, the ear positioning hole (203) and the ear positioning hole (103) are arranged in a one-to-one correspondence.

[0027] In this embodiment, the end with the ear bushing (2) is the reference surface and the vertical end face of the positioning frame (1) is mated together, and then the ear plate positioning hole (203) and the ear positioning hole (103) are clamped and connected by the quick clamp (4).

[0028] In this embodiment, during the assembly of the product flange, it is necessary to ensure that the size L of the device has certain tolerance requirements. After the product flange and the flange lug positioning device are properly installed and positioned, the position of the product flange is basically its theoretical position on the missile body. Then, drilling is performed. After completion, the first positioning pin (3) is removed, the positioning frame (1) and the pre-installed product flange (with lug bushing (2)) are removed, and finally the product flange is removed and connected to the missile body to realize the flange installation and positioning on the missile or aircraft.

[0029] The specific embodiments described herein are merely illustrative examples of the present invention. Figures 1-6 The vertical and horizontal plates described in the examples are merely illustrative and do not affect the spirit of the invention. Those skilled in the art can make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A flange lug-type positioning device, comprising a positioning frame (1), a lug bushing (2), a first positioning pin (3), a quick clamp (4), and a second positioning pin (5), characterized in that, The positioning frame (1) uses the precision hole on the product engine frame as the reference hole. The positioning frame (1) is provided with a suspension joint (102) for inserting the first positioning pin (3) to realize the positioning frame (1) and the product engine frame positioning. One end of the positioning frame (1) is provided with an ear bushing (2) that pre-fits with the inner surface of the product flange. The ear bushing (2) has an outer circular positioning hole (204) on its circumferential surface, which uses the second positioning pin (5) to realize the positioning fit between the product flange and the ear bushing (2). At the same time, the positioning frame (1) also has an ear positioning hole (103) for quick positioning of the ear bushing (2) through the quick clamp (4).

2. The flange lug type positioning device according to claim 1, characterized in that, The positioning frame (1) includes a frame plate (101), a suspension joint (102), an ear-type positioning hole (103), and a clearance hole (104), wherein the frame plate (101) is composed of a vertical plate and a horizontal plate.

3. A flange lug-type positioning device according to claim 2, characterized in that, The suspension connector (102) is set on the horizontal plate, and a clearance hole (104) is opened at the upper part of the vertical plate. An ear-type positioning cavity is opened on the vertical plate below the clearance hole (104), and multiple ear-type positioning holes (103) are opened in the ear-type positioning cavity.

4. A flange lug-type positioning device according to claim 3, characterized in that, The ear-type positioning cavity has three ear-type positioning holes (103), two of which are precision positioning holes and one is an enlargement hole.

5. A flange lug-type positioning device according to claim 3, characterized in that, Two sets of suspension joints (102) are symmetrically arranged on the horizontal plate.

6. A flange lug-type positioning device according to claim 3, characterized in that, The openings (104) are arranged symmetrically on the upper part of the vertical plate.

7. A flange lug-type positioning device according to claim 1, characterized in that, The ear bushing (2) includes an outer circular surface (201), an ear piece (202), an ear piece positioning hole (203), and an outer circular surface positioning hole (204). The outer circular surface (201) of the ear bushing is pre-fitted with the inner surface of the product flange. The outer circular surface positioning hole (204) is used to position the process hole on the product flange through a second positioning pin (5). The ear piece (202) is provided with an ear piece positioning hole (203) that is positioned and clamped to the ear positioning hole (103) through a quick clamp (4).

8. A flange lug-type positioning device according to claim 7, characterized in that, The ear-shaped positioning hole (203) and the ear-shaped positioning hole (103) are arranged in a one-to-one correspondence.

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