CN218575563U

CN218575563U - Positioning fixture for turning shell head assembly

Info

Publication number: CN218575563U
Application number: CN202223205635.4U
Authority: CN
Inventors: 赵选锋; 秋新; 谢圣霆
Original assignee: Establishment of Aviation Co Ltd
Current assignee: Establishment of Aviation Co Ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-03-07
Anticipated expiration: 2032-12-01

Abstract

The utility model discloses a positioning fixture for casing head subassembly car processing, include: the bottom of the chassis is fixedly provided with a clamping column; the positioning seat is arranged on the top surface of the chassis, one side of the positioning seat is provided with a mounting groove, and a through groove for a bent pipe of the shell head assembly to pass through is formed in the mounting groove; the first positioning fixing assembly is arranged between the positioning seat and the chassis; the second positioning fixing component is arranged on one side of the positioning seat; and the fixing component is fixedly arranged on the top surface of the chassis. The utility model discloses a positioning fixture simple structure, it is convenient to install, and the location is accurate, and is fixed firm, has ensured the processingquality of casing head subassembly.

Description

Positioning fixture for turning shell head assembly

Technical Field

The utility model relates to a parts car processing technology field especially relates to a positioning fixture for processing of casing head subassembly car.

Background

The housing head assembly as shown in fig. 1 is one of the important components of an aircraft engine. This casing head subassembly includes the mount pad, is provided with the mounting hole on the mount pad, and the mount pad is connected with the return bend, and the one end that the mount pad was kept away from to the return bend is the exit end. After the shell head assembly is machined, the shell head assembly needs to be turned, and when the shell head assembly is turned, the shell head assembly needs to be clamped and fixed. A positioning clamp is designed at present, and the shell head assembly is clamped and fixed, so that the machining quality of the shell head assembly is ensured.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide a positioning fixture for housing head assembly turning, which has a simple structure, is convenient to install, is accurate in positioning, is stable in fixing, and can ensure the quality of part processing.

The utility model provides a pair of a positioning fixture for casing head subassembly car processing, include:

the bottom of the chassis is fixedly provided with a clamping column;

the positioning seat is arranged on the top surface of the chassis, one side of the positioning seat is provided with an installation groove, and a through groove for a bent pipe of the shell head assembly to penetrate through is formed in the installation groove;

the first positioning fixing assembly is arranged between the positioning seat and the chassis and used for positioning and fixing the positioning seat;

the second positioning and fixing assembly is arranged on one side of the positioning seat and used for positioning and fixing the mounting seat of the shell head assembly, so that the axis of the outlet end of the bent pipe is superposed with the axis of the clamping column;

and the fixing component is fixedly arranged on the top surface of the chassis and used for fixing the outlet end of the elbow.

Furthermore, the positioning seat including set up in the horizontal bedplate of chassis top surface, one side of horizontal bedplate top surface is fixed and is provided with vertical bedplate, the mounting groove is located one side of vertical bedplate.

Further, the first positioning and fixing assembly comprises a first fixing bolt, a first positioning pin and a first pressing plate; keep away from on the horizontal bedplate perpendicular bedplate one side is provided with two through-holes, first fixing bolt passes the through-hole and with chassis threaded connection, be located on the horizontal bedplate be provided with two first pinholes between through-hole and the perpendicular bedplate, first locating pin passes first pinhole and inserts in the chassis, the horizontal bedplate is kept away from one side of first fixing bolt is provided with two indent, the one end of first clamp plate stretches into in the indent, the bottom threaded connection of the other end has first supporting bolt, the middle part of first clamp plate through first locking bolt with chassis fixed connection.

Further, the second positioning and fixing assembly comprises a second positioning pin and a second pressing plate; the mounting groove is internally provided with second pin holes which correspond to the mounting holes of the shell head assembly in a one-to-one manner, the second positioning pins penetrate through the mounting holes and are inserted into the corresponding second pin holes, at least two second pressing plates are arranged, one end of each second pressing plate is pressed on the mounting seat, a second supporting bolt is arranged between the other end of each second pressing plate and the vertical base plate, the second supporting bolts are in threaded connection with the second pressing plates, and the middle parts of the second pressing plates are fixedly connected with the chassis through second locking bolts.

Further, the fixed subassembly including fixed set up in the top surface symmetry on chassis distribute in the first fixing base of the exit end both sides of return bend, the top surface on chassis is located the fixed second fixing base that is provided with in one side that keeps away from the positioning seat of the exit end of return bend, threaded connection has on the first fixing base stretch to the first clamping bolt of exit end, threaded connection has on the second fixing base stretch to the second clamping bolt of exit end.

Furthermore, the base plate is circular, and the base plate and the clamping column are coaxial.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a positioning fixture comprises chassis, positioning seat, the fixed subassembly in first location, the fixed subassembly in second location and fixed subassembly. When the shell head assembly is clamped and fixed, the positioning seat is positioned and fixed on the chassis through the first positioning and fixing assembly, the bent pipe penetrates through the through groove, the mounting seat is embedded into the mounting groove, and the mounting seat is positioned and fixed through the second positioning and fixing assembly, so that the axis of the outlet end coincides with the axis of the clamping column. The outlet end is fixed through the fixing assembly, so that the phenomenon that the outlet end shakes during turning is avoided.

After the shell head assembly is clamped and fixed, the chassis is erected, and the clamping column is clamped and fixed through a clamping jaw of a lathe, so that the mounting seat faces upwards, and the axis of the outlet end is horizontal. The shell head assembly can then be lathed. The positioning fixture is simple in structure, convenient to install, accurate in positioning, stable and firm in fixing, and ensures the machining quality of the shell head assembly.

It should be understood that what is described in this summary section is not intended to limit key or critical features of embodiments of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 is a schematic structural view of a housing header assembly;

FIG. 2 is a schematic structural view of a positioning fixture;

FIG. 3 is a schematic view of the positioning fixture from another perspective;

fig. 4 is a schematic structural view of the shell head assembly mounted on the positioning fixture.

Reference numbers in the figures: 1. a housing head assembly; 2. a chassis; 3. positioning seats; 4. a first positioning and fixing component; 5. a second positioning and fixing component; 6. a fixing assembly;

11. a mounting base; 12. mounting holes; 13. bending the pipe; 14. an outlet end;

21. a clamping post;

31. a transverse seat plate; 32. a vertical seat plate; 33. mounting grooves; 34. a through groove; 35. a through hole; 36. a first pin hole; 37. pressing a groove; 38. a second pin hole;

41. a first presser plate; 42. a first support bolt;

51. a second platen; 52. a second support bolt;

61. a first fixed seat; 62. a second fixed seat.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 4, an embodiment of the present invention provides a positioning fixture for lathing a shell head assembly, including:

the bottom of the chassis 2 is fixedly provided with a clamping column 21;

the positioning seat 3 is arranged on the top surface of the chassis 2, one side of the positioning seat 3 is provided with an installation groove 33, and a through groove 34 for the elbow 13 of the shell head component 1 to pass through is arranged in the installation groove 33;

the first positioning fixing component 4 is arranged between the positioning seat 3 and the chassis 2 and is used for positioning and fixing the positioning seat 3;

the second positioning and fixing component 5 is arranged on one side of the positioning seat 3 and used for positioning and fixing the mounting seat 11 of the shell head component 1, so that the axis of the outlet end 14 of the elbow 13 is superposed with the axis of the clamping column 21;

and the fixing component 6 is fixedly arranged on the top surface of the chassis 2 and is used for fixing the outlet end 14 of the elbow 13.

In the present embodiment, when the shell head assembly 1 shown in fig. 1 is clamped, the positioning seat 3 is first fixedly positioned on the chassis 2 by the first fixedly positioning component 3, then the elbow 13 of the shell head assembly 1 passes through the through slot 34, and the mounting seat 11 is inserted into the mounting slot 33. The mounting block 11 is then positioned by the second positioning and fixing assembly 5 so that the axis of the outlet end 14 of the elbow 13 coincides with the axis of the clamping column 21. The outlet end 14 is fixed through the fixing component 6, so that shaking during turning can be avoided.

After the shell head assembly 1 is clamped and fixed, the chassis 2 is erected, the clamping column 21 is clamped and fixed through a clamping jaw of a lathe, the mounting seat 11 faces upwards, and the axis of the outlet end 14 is horizontal. The housing head assembly 1 can now be machined. The positioning fixture is simple in structure, convenient to install, accurate in positioning, stable and firm in fixing, and ensures the machining quality of the shell head assembly 1.

In a preferred embodiment, as shown in fig. 2 and 3, the positioning seat 3 includes a horizontal seat plate 31 disposed on the top surface of the chassis 2, a vertical seat plate 32 is fixedly disposed on one side of the top surface of the horizontal seat plate 31, and the installation groove 33 is disposed on one side of the vertical seat plate 32.

In this embodiment, horizontal bedplate 31 and vertical bedplate 32 integrated into one piece install casing head subassembly 1 to vertical bedplate 32, through first location fixed subassembly 4 with horizontal bedplate 31 location be fixed in chassis 2 on, through second location fixed subassembly 5 with casing head subassembly 1 location be fixed in vertical bedplate 32 on, realized the accurate location to casing head subassembly 1.

In a preferred embodiment, as shown in fig. 2 and 3, the first positioning and fixing assembly 4 includes a first fixing bolt, a first positioning pin and a first pressing plate 41; one side of keeping away from vertical seat board 32 on horizontal seat board 31 is provided with two through-holes 35, first fixing bolt pass through-hole 35 and with chassis 2 threaded connection, it is provided with two first pinhole 36 to lie in between through-hole 35 and the vertical seat board 32 on the horizontal seat board 31, first locating pin passes first pinhole 36 and inserts in the chassis 2, one side that first fixing bolt was kept away from to horizontal seat board 31 is provided with two indent 37, the one end of first clamp plate 41 stretches into in the indent 37, the bottom threaded connection of the other end has first supporting bolt 42, first clamp plate 41's middle part is through first locking bolt and chassis 2 fixed connection.

In this embodiment, the chassis 2 is provided with a pin hole for positioning the transverse seat plate 31, and the first positioning pin passes through the first pin hole 36 and is inserted into the pin hole on the chassis 2, thereby realizing accurate positioning of the positioning seat 3. And then the transverse seat plate 31 is fixed by the matching of the first fixing bolt and the first pressing plate 41, so that the fixing stability is good.

In a preferred embodiment, as shown in fig. 2 and 3, the second positioning and fixing assembly 5 includes a second positioning pin and a second pressing plate 51; the mounting groove 33 is internally provided with second pin holes 38 which correspond to the mounting holes 12 of the shell head assembly 1 one by one, a second positioning pin passes through the mounting hole 12 and is inserted into the corresponding second pin hole 38, the second pressing plate 51 is provided with at least two blocks, one end of the second pressing plate 51 is pressed on the mounting seat 11, a second supporting bolt 52 is arranged between the other end of the second pressing plate 51 and the vertical seat plate 32, the second supporting bolt 52 is in threaded connection with the second pressing plate 51, and the middle part of the second pressing plate 51 is fixedly connected with the chassis 2 through a second locking bolt.

In the embodiment, the second positioning pin is matched with the mounting hole 12 on the mounting seat 11 to position the mounting seat 11, and the positioning is accurate. The second pressing plate 51 is matched with the second locking bolt to process the installation seat 11 to be pressed and fixed, and the fixation is stable. The machining accuracy of the housing head assembly 1 is ensured.

In a preferred embodiment, as shown in fig. 2 and 3, the fixing assembly 6 includes first fixing seats 61 symmetrically disposed on the top surface of the chassis 2 and distributed on two sides of the outlet end 14 of the elbow 13, second fixing seats 62 fixedly disposed on one side of the top surface of the chassis 2, which is located on the outlet end 14 of the elbow 13 and away from the positioning seat 3, first clamping bolts extending to the outlet end 14 are connected to the first fixing seats 61 through threads, and second clamping bolts extending to the outlet end 14 are connected to the second fixing seats 62 through threads.

In this embodiment, after the second positioning and fixing component 5 fixedly mounts the housing header component 1 on the vertical seat plate 32, the outlet end 14 is clamped and fixed by the first clamping bolt and the second clamping bolt, so that the stability of the outlet end 14 in the turning process is ensured. Preferably, the end parts of the first clamping bolt and the second clamping bolt are provided with clamping plates, the clamping plates are provided with clamping grooves matched with the outlet end 14, the outlet end 14 is clamped and fixed through the clamping plates, the contact area is increased, and the fixing effect is improved.

In a preferred embodiment, as shown in fig. 2 and 3, the base plate 2 is circular and the base plate 2 is coaxial with the clamping post 21. The outlet end 14 is positioned and fixed at the center of the chassis 2, and the axis of the outlet end 14 coincides with the axis of the clamping column 21, so that the accurate positioning of the shell head assembly 1 is ensured.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood broadly, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, the description of the terms "one embodiment," "some embodiments," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A positioning fixture for housing header assembly turning, comprising:

the bottom of the chassis is fixedly provided with a clamping column;

2. The localization fixture for housing header assembly lathing as claimed in claim 1, wherein the localization seat comprises a horizontal seat plate disposed on the top surface of the chassis, a vertical seat plate is fixedly disposed on one side of the top surface of the horizontal seat plate, and the installation groove is disposed on one side of the vertical seat plate.

3. The positioning fixture for housing header assembly lathing of claim 2, wherein the first positioning fixture assembly comprises a first fixing bolt, a first positioning pin and a first pressure plate; keep away from on the horizontal bedplate perpendicular bedplate one side is provided with two through-holes, first fixing bolt passes the through-hole and with chassis threaded connection, be located on the horizontal bedplate be provided with two first pinholes between through-hole and the perpendicular bedplate, first locating pin passes first pinhole and inserts in the chassis, the horizontal bedplate is kept away from one side of first fixing bolt is provided with two indent, the one end of first clamp plate stretches into in the indent, the bottom threaded connection of the other end has first supporting bolt, the middle part of first clamp plate through first locking bolt with chassis fixed connection.

4. The positioning fixture for housing header assembly lathing of claim 2, wherein the second positioning fixture assembly comprises a second positioning pin and a second pressure plate; the mounting groove is internally provided with second pin holes which correspond to the mounting holes of the shell head assembly in a one-to-one manner, the second positioning pins penetrate through the mounting holes and are inserted into the corresponding second pin holes, at least two second pressing plates are arranged, one end of each second pressing plate is pressed on the mounting seat, a second supporting bolt is arranged between the other end of each second pressing plate and the vertical base plate, the second supporting bolts are in threaded connection with the second pressing plates, and the middle parts of the second pressing plates are fixedly connected with the chassis through second locking bolts.

5. The positioning fixture for housing head assembly turning according to claim 1, wherein the fixing assembly includes first fixing seats symmetrically disposed on the top surface of the base plate and disposed on two sides of the outlet end of the elbow, a second fixing seat is fixedly disposed on the top surface of the base plate and located on a side of the outlet end of the elbow away from the positioning seat, a first clamping bolt extending to the outlet end of the elbow is connected to the first fixing seat through a thread, and a second clamping bolt extending to the outlet end of the elbow is connected to the second fixing seat through a thread.

6. The localization fixture for housing header assembly lathing of claim 1, wherein the chassis is circular and the chassis is coaxial with the clamping post.