Ear type positioning device for flange plate

Abstract

A flange plate lug type positioning device is characterized in that a positioning frame (1) takes a precision hole in a product engine frame as a reference hole, and the positioning frame (1) is provided with a suspension joint (102) which is used for inserting a positioning bolt (3) to realize positioning of the positioning frame (1) and the product engine frame; one end of the positioning frame (1) is provided with a lug-type lining (2) which is pre-matched with the inner surface of a product flange plate, and the circumferential surface of the lug-type lining (2) is provided with an outer circular surface positioning hole (204) which is used for realizing positioning matching between the product flange plate and the lug-type lining (2) by using a positioning bolt (5); and meanwhile, the positioning frame (1) is also provided with a lug-type positioning hole (103) which is quickly positioned with the lug-type lining (2) through a quick clamping device (4). The application range of the flange plate is effectively expanded, the design and manufacturing cost is reduced, the flange plate is more economical and efficient, and then the working efficiency of mounting and positioning of the flange plate on a guided missile or an airplane is more effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical structures, and in particular to a flange ear type positioning device. Background Art

[0002] In the implementation of mechanical structure engineering, the most commonly used flange assembly method is the prefabricated hole and end face matching connection assembly method. This method requires prefabricated precision holes for the assembly parts and the assembled parts during the assembly process so that they can be assembled and installed on the positioning end faces. However, this can only meet the needs of prefabricated holes on machine tools when the two external dimensions are not large. When large components or extra-large components are connected to small components, the large components are difficult to process on machine tools. Therefore, the method of prefabricated holes in advance 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 be moved to avoid exiting the product for easy disassembly. Summary of the invention

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

[0004] The technical problem solved by the present invention is achieved by adopting the following technical solutions: A flange ear-type positioning device comprises a positioning frame (1), an ear-type bushing (2), a positioning pin (3), a quick clamp (4) and a positioning pin (5), wherein the positioning frame (1) uses a precision hole on a product engine frame as a reference hole, a suspension joint (102) is provided on the positioning frame (1), and the positioning pin (3) is inserted into a frame suspension joint and the suspension joint (102) provided on the product engine frame to realize positioning of the positioning frame (1) and the product engine frame; an ear-type bushing (2) pre-matched with the inner surface of the product flange is provided at one end of the positioning frame (1), and an outer circumferential surface positioning hole (204) is opened on the circumferential surface of the ear-type bushing (2); the product flange and the ear-type bushing (2) are positioned and matched by the positioning pin (5) to prevent the product flange and the ear-type bushing (2) from rotating around an axis; and an ear-type positioning hole (103) is also opened on the positioning frame (1) to realize quick positioning with the ear-type bushing (2) through the quick clamp (4).

[0005] In the present invention, the positioning frame (1) comprises 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, the suspension joint (102) arranged on the horizontal plate cooperates with the end face of the suspension joint on the product engine frame and is positioned by a positioning pin (3) to ensure the verticality requirement of the vertical plate and the horizontal plate of the positioning frame (1), the upper part of the vertical plate is provided with a clearance hole (104), and the clearance hole (104) is used to provide an operating space for pneumatic drilling during product assembly; the vertical plate below the clearance hole (104) is provided with an ear-type positioning cavity, and three ear-type positioning holes (103) are provided in the ear-type positioning cavity, two of which are precision positioning holes and one is an enlarged hole, so as to ensure that the quick clamp (4) is installed in place during assembly and positioning installation.

[0006] In the present invention, the ear-type bushing (2) comprises an ear-type bushing outer cylindrical surface (201), an ear piece (202), an ear piece positioning hole (203) and an outer cylindrical surface positioning hole (204), wherein the ear-type bushing outer cylindrical surface (201) is pre-matched with the inner surface of the product flange, the outer cylindrical surface positioning hole (204) is used to be positioned with a process hole on the product flange by a positioning pin (5), the ear piece (202) is provided with an ear piece positioning hole (203), and the ear piece positioning hole (203) and the ear-type positioning hole (103) on the positioning frame (1) are positioned and clamped by a quick clamp (4).

[0007] In the present invention, two groups of suspension joints (102) are symmetrically arranged on the transverse plate.

[0008] In the present invention, the openings (104) are arranged symmetrically on the upper part of the vertical plate.

[0009] In the present invention, the ear piece positioning holes (203) and the ear-type positioning holes (103) are arranged in a one-to-one symmetric manner.

[0010] In the present invention, one end of the ear-type bushing (2) is a reference surface that is face-fitted with the vertical end surface of the positioning frame (1), and then the ear piece positioning hole (203) and the ear-type positioning hole (103) are clamped and connected using a quick clamp (4).

[0011] In the present invention, after the product flange and the flange ear-type positioning device are installed and positioned, the position of the product flange is basically at the theoretical position of the missile body. After drilling, the positioning pin (3) is pulled out, the positioning frame (1) and the pre-installed product flange (with the ear-type bushing (2)) are removed, and finally the product flange is removed and connected to the missile body to achieve the flange installation and positioning on the missile or aircraft.

[0012] Beneficial effects: The present invention effectively expands the application scope of the flange, reduces the design and manufacturing costs, makes it more economical and efficient, and further more effectively improves the work efficiency of flange installation and positioning on missiles or aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an axonometric view of a preferred embodiment of the present invention.

[0014] Figure 2 This is an axonometric view of the positioning frame in the preferred embodiment of the present invention.

[0015] Figure 3 It is an axonometric view of the ear-type bushing in the preferred embodiment of the present invention.

[0016] Figure 4 It is a front view of a preferred embodiment of the present invention. Figure 5 It is a left view of a preferred embodiment of the present invention.

[0017] Figure 6 It is a top view of a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams.

[0019] See also Figures 1 to 6 A flange ear-type positioning device comprises a positioning frame (1), an ear-type bushing (2), a positioning pin (3), a quick clamp (4) and a positioning pin (5), wherein the positioning frame (1) uses a precision hole on a product engine frame as a reference hole, a suspension joint (102) is provided on the positioning frame (1), and the positioning pin (3) is inserted into a frame suspension joint and a suspension joint (102) provided on the product engine frame to achieve positioning of the positioning frame (1) and the product engine frame; an ear-type bushing (2) pre-matched with the inner surface of the product flange is provided at one end of the positioning frame (1), and an outer circumferential surface positioning hole (204) is provided on the circumferential surface of the ear-type bushing (2); the product flange and the ear-type bushing (2) are positioned and matched by the positioning pin (5) to prevent the product flange and the ear-type bushing (2) from rotating around an axis; and an ear-type positioning hole (103) is also provided on the positioning frame (1) to achieve quick positioning with the ear-type bushing (2) through the quick clamp (4).

[0020] In this embodiment, 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, the suspension joint (102) arranged on the horizontal plate cooperates with the end surface of the suspension joint on the product engine frame and is positioned by a positioning pin (3) to ensure the verticality requirement of the vertical plate and the horizontal plate of the positioning frame (1), and the clearance hole (104) is opened on the upper part of the vertical plate, and the clearance hole (104) is used to provide an operating space for pneumatic drilling when the product is assembled; an ear-type positioning cavity is opened on the vertical plate below the clearance hole (104), and 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 enlarged hole, so as to ensure that the quick clamp (4) is installed in place during assembly and positioning.

[0021] In this embodiment, the ear-type bushing (2) comprises an ear-type bushing outer cylindrical surface (201), an ear piece (202), an ear piece positioning hole (203) and an outer cylindrical surface positioning hole (204), wherein the ear-type bushing outer cylindrical surface (201) is pre-matched with the inner surface of the product flange, the outer cylindrical surface positioning hole (204) is used to be positioned with a process hole on the product flange by a positioning pin (5), the ear piece (202) is provided with an ear piece positioning hole (203), and the ear piece positioning hole (203) and the ear-type positioning hole (103) on the positioning frame (1) are positioned and clamped by a quick clamp (4).

[0022] In this embodiment, two groups of suspension joints (102) are symmetrically arranged on the transverse plate.

[0023] In this embodiment, the openings (104) are arranged symmetrically on the upper part of the vertical plate.

[0024] In this embodiment, the ear piece positioning holes (203) and the ear-type positioning holes (103) are arranged one-to-one symmetrically.

[0025] In this embodiment, one end of the ear-type bushing (2) is a reference surface that is surface-matched with the vertical end surface of the positioning frame (1), and then the ear piece positioning hole (203) and the ear-type positioning hole (103) are clamped and connected using a quick clamp (4).

[0026] In this embodiment, during the assembly process of the product flange, it is necessary to ensure that the dimension L of the device has a certain tolerance requirement. When the product flange and the flange ear-type positioning device are installed and positioned, the position of the product flange is basically its theoretical position on the missile body. After drilling, the positioning pin (3) is pulled out, the positioning frame (1) and the pre-installed product flange (with the ear-type bushing (2)) are removed, and finally the product flange is removed and connected to the missile body to achieve the flange installation and positioning on the missile or aircraft.

[0027] The specific embodiments described herein are merely examples of the present invention. Figures 1 to 6 The vertical plate, horizontal plate, etc. in the examples are only used to illustrate the implementation and do not affect the spirit of the present invention. Those skilled in the art of the present invention may make various modifications or supplements to the specific embodiments described or replace them with similar methods, but they will not deviate from the spirit of the present invention or exceed the scope defined by the attached claims.

Claims

1. A flange ear-type positioning device, comprising a positioning frame (1), an ear-type bushing (2), a positioning pin (3), a quick clamp (4) and a positioning pin (5), characterized in that: The positioning frame (1) uses the precision hole on the product engine frame as a reference hole, and is provided with a suspension joint (102) for inserting a positioning pin (3) to achieve positioning of the positioning frame (1) and the product engine frame; an ear-type bushing (2) pre-matched with the inner surface of the product flange is provided at one end of the positioning frame (1), and an outer circumferential surface positioning hole (204) is provided on the circumferential surface of the ear-type bushing (2) for positioning the product flange and the ear-type bushing (2) by using the positioning pin (5); at the same time, the positioning frame (1) is also provided with an ear-type positioning hole (103) for achieving rapid positioning with the ear-type bushing (2) through a quick clamp (4).

2. A flange ear type positioning device according to claim 1, characterized in that: The positioning frame (1) comprises 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 ear type positioning device according to claim 2, characterized in that: The suspension joint (102) is arranged on the horizontal plate, a clearance hole (104) is opened on the upper part of the vertical plate, an ear-type positioning cavity is opened on the vertical plate below the clearance hole (104), and a plurality of ear-type positioning holes (103) are opened in the ear-type positioning cavity.

4. A flange ear type positioning device according to claim 3, characterized in that: Three ear-type positioning holes (103) are provided in the ear-type positioning cavity, two of which are precision positioning holes and one is an enlarged hole.

5. The flange ear type positioning device according to claim 3, characterized in that: Two groups of suspension joints (102) are symmetrically arranged on the transverse plate.

6. The flange ear 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. The flange ear type positioning device according to claim 1, characterized in that: The ear-type bushing (2) comprises an ear-type bushing outer cylindrical surface (201), an ear piece (202), an ear piece positioning hole (203) and an outer cylindrical surface positioning hole (204), wherein the ear-type bushing outer cylindrical surface (201) is pre-matched with the inner surface of the product flange, the outer cylindrical surface positioning hole (204) is used to be positioned with the process hole on the product flange via a positioning pin (5), and the ear piece (202) is provided with an ear piece positioning hole (203) which is positioned and clamped with the ear-type positioning hole (103) via a quick clamp (4).

8. The flange ear type positioning device according to claim 7, characterized in that: The ear piece positioning holes (203) and the ear type positioning holes (103) are arranged in a one-to-one symmetric manner.

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