CN211028246U

CN211028246U - Tool of aluminum alloy seat frame for airplane

Info

Publication number: CN211028246U
Application number: CN201921552443.6U
Authority: CN
Inventors: 王洪卓; 孙巍; 刘兆伟; 孙亮
Original assignee: Liaoning Zhongwang Aluminium Alloy Jingshen Processing Co ltd
Current assignee: Liaoning Zhongwang Aluminium Alloy Jingshen Processing Co ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-07-17
Anticipated expiration: 2029-09-18

Abstract

The utility model relates to a tool of an aluminum alloy seat frame for an airplane, which belongs to the technical field of tool fixtures and is fixed on a workbench of a milling machine, and comprises a bottom plate, a positioning component and a jacking mechanism which are arranged on the bottom plate; the positioning assembly comprises a short edge positioning block and long edge positioning blocks which are oppositely arranged on two sides of the bottom plate; the short edge positioning block is provided with a first supporting surface matched with the short edge of the seat frame; the long-edge positioning block is provided with a limiting surface and a second supporting surface matched with the long edge of the seat frame; the jacking mechanism is arranged on one side of the seat frame and compresses the seat frame on the limiting surface. This application compresses tightly the seat frame on locating component through the locating component that adopts the matching seat frame and the tight mechanism in top that sets up in seat frame one side, has solved the deformation problem that the seat frame produced when milling from the seat frame side.

Description

Tool of aluminum alloy seat frame for airplane

Technical Field

The utility model belongs to the technical field of frock clamp, a frock of aluminum alloy seat frame for aircraft is related to.

Background

The aluminum alloy seat frame rod is a workpiece which can be finished after aluminum alloy sections are subjected to bending, pressure forming and assembly welding and then accurately machined.

The existing machining tool adopts one-way limiting and is fixed at two ends in a pressing mode by pressing plates. In order to ensure the product quality, all milling processing needs to be finished in one-time clamping, the stress position of the pressure plate in the tool needs to be positioned at the bending part of the section, and the section and the tool are in point contact. According to the clamping method, the pressure of the pressing plate can generate bending deformation on the outline of the workpiece, the machining precision is influenced, the downward pressing force can cause the defects that the contact part of the section bar and the tool generates local deformation and the like, and the product quality and the rejection rate are influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application aims to provide a tooling for an aluminum alloy seat frame for an aircraft, which adopts a positioning assembly matched with the seat frame and a tightening mechanism arranged on one side of the seat frame to press the seat frame onto the positioning assembly from the side edge of the seat frame, so as to solve the problem of deformation of the seat frame during milling.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a tool of an aluminum alloy seat frame for an airplane is fixed on a workbench of a milling machine and comprises a bottom plate, a positioning assembly and a jacking mechanism, wherein the positioning assembly and the jacking mechanism are arranged on the bottom plate; the positioning assembly comprises a short edge positioning block and long edge positioning blocks which are oppositely arranged on two sides of the bottom plate; the short edge positioning block is provided with a first supporting surface matched with the short edge of the seat frame; the long edge positioning block is provided with a limiting surface and a second supporting surface matched with the long edge of the seat frame; the jacking mechanism is arranged on one side of the seat frame and compresses the seat frame on the limiting surface.

Optionally, the tightening mechanism comprises an air cylinder and a pressing block, the pressing block is connected to the telescopic end of the air cylinder, and the air cylinder is fixed to the bottom plate.

Optionally, the compression block is an elastic block.

Optionally, the compression block has a compression surface that mates with the seat frame.

Optionally, the jacking mechanism and the limiting surface are oppositely arranged on two sides of the long edge of the seat frame.

Optionally, the tightening mechanism is provided inside the seat frame.

Optionally, the tightening mechanism comprises a connecting block and a side jacking bolt screwed on the connecting block, and the connecting block is screwed on the bottom plate.

Optionally, the bottom plate is provided with a plurality of through holes for connecting with a milling machine, and the bottom plate is connected to a workbench of the milling machine through the through holes in a threaded manner.

Optionally, the positioning assembly is detachably connected with the bottom plate.

The beneficial effects of the utility model reside in that: through the locating component who adopts the matching seat frame and the tight mechanism in top that sets up in seat frame one side, compress tightly the seat frame on locating component from the seat frame side, make when pressing from both sides frock and seat frame be the face contact, seat frame surface and the laminating of frock holding surface promptly, can not produce because of local pressure too big and lead to the local deformation of seat frame, effectively avoid the clamp plate among the prior art to cause the contour deformation defect such as seat frame when pushing down, the deformation problem that the seat frame produced when milling has been solved, the yield of product has been improved.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic structural diagram of the present invention.

Reference numerals: the device comprises a bottom plate 1, a short edge positioning block 2, a long edge positioning block 3, a seat frame 4, a side top bolt 5 and a connecting block 6.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Referring to fig. 1, a tooling of an aluminum alloy seat frame for an airplane is fixed on a workbench of a milling machine, and comprises a bottom plate 1, and a positioning assembly and a jacking mechanism which are arranged on the bottom plate; the positioning assembly comprises a short edge positioning block 2 and long edge positioning blocks 3 which are oppositely arranged on two sides of the bottom plate 1; the short edge positioning block 2 is provided with a first supporting surface matched with the short edge of the seat frame 4; the long-edge positioning block 3 is provided with a limiting surface and a second supporting surface matched with the long edge of the seat frame 4; the jacking mechanism is arranged on the inner side of the seat frame 4 and compresses the seat frame 4 on the limiting surface; the jacking mechanism comprises a connecting block 6 and a side jacking bolt 5 which is connected with the connecting block through threads, and the connecting block 6 is connected with the bottom plate 1 through threads; the bottom plate 1 is provided with a plurality of through holes for connecting with a milling machine, and the bottom plate 1 is connected on a workbench of the milling machine through the through holes in a threaded manner; the short-edge positioning block 2 is made of nylon, and the long-edge positioning block 3 is made of an aluminum block.

In order to improve the positioning accuracy, in this embodiment, the blank of the positioning assembly is mounted on the bottom plate 1, and positioning and post-processing are performed, that is, the blank nylon block of the short-edge positioning block 2 and the blank aluminum block of the long-edge positioning block 3 are fixed on the bottom plate 1 by bolts, the bottom plate 1 is fixed on a workbench of a milling machine by bolts, and then theoretical contour processing is performed on the blank nylon block and the blank aluminum block by milling equipment. The tool adopts the method of firstly installing the positioning component and then processing the contour of the supporting surface, so that the assembly error of the positioning component can be eliminated, and the accuracy of the clamping position can be ensured.

In order to improve work efficiency, the tight mechanism in top in this application can also adopt self-holding, and the tight mechanism in top includes cylinder and compact heap, and the compact heap is the elastic block, and the compact heap has seat frame assorted top tight face, and the compact heap is connected and is served in the flexible of cylinder, and the cylinder is fixed on bottom plate 1.

In order to alleviate seat frame 4 and produce the deformation because of the clamping, the tight mechanism in top in this application sets up in the long limit both sides of seat frame 4 with spacing face relatively, and this kind of clamping mode can effectively avoid the clamp plate among the prior art to cause the profile deformation of seat frame 4 when pushing down the defect such as, has improved the yield of product.

Because locating component and seat frame 4 contact belong to the wearing and tearing piece, in order to change locating component, the locating component in this application is for dismantling the connection with the connected mode of bottom plate 1.

The utility model discloses a mode at both ends side top, the surface of tight fixed area's holding surface matching seat frame 4 of clamp, the surface and the laminating of frock holding surface of seat frame 4 promptly can not produce local pressure too big, leads to the local deformation defect of seat frame 4. This frock uses the side tight piece in top at both ends to press from both sides the fastening to seat frame 4 side when the clamping and fixes, has changed the direction of the clamping force among the prior art, has avoided the clamping force of vertical direction to the problem that the profile that seat frame 4 caused warp, and seat frame 4 and frock belong to the face contact, can effectively avoid seat frame 4 because of the defect that the single-point pressurized production warp.

The utility model discloses can effectual improvement product quality to the fixed method of seat frame 4, reduce the rejection rate to reduction in production cost. When the prior art method is used for processing, 10 products are scrapped in each batch of 140 products due to profile deformation and local stress deformation, and the rejection rate is 7%. After the tool is used, only 1 piece of material is scrapped in each batch, and the rejection rate is 0.7%. This frock provides reference for the milling process of aluminum alloy piece of bending.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a frock of aluminum alloy seat frame for aircraft, fixes on the workstation of milling machine which characterized in that: comprises a bottom plate, a positioning component and a jacking mechanism which are arranged on the bottom plate;

the positioning assembly comprises a short edge positioning block and long edge positioning blocks which are oppositely arranged on two sides of the bottom plate;

the short edge positioning block is provided with a first supporting surface matched with the short edge of the seat frame;

the long edge positioning block is provided with a limiting surface and a second supporting surface matched with the long edge of the seat frame;

the jacking mechanism is arranged on one side of the seat frame and compresses the seat frame on the limiting surface.

2. The tooling of the aluminum alloy seat frame for the airplane as claimed in claim 1, wherein: the jacking mechanism comprises an air cylinder and a pressing block, the pressing block is connected to the telescopic end of the air cylinder, and the air cylinder is fixed on the bottom plate.

3. The tooling of the aluminum alloy seat frame for the airplane as claimed in claim 2, wherein: the pressing block is an elastic block.

4. The tooling of the aluminum alloy seat frame for the airplane as claimed in claim 2, wherein: the pressing block is provided with a pressing surface matched with the seat frame.

5. The tooling of the aluminum alloy seat frame for the airplane as claimed in claim 1, wherein: the jacking mechanism and the limiting surface are oppositely arranged on two sides of the long edge of the seat frame.

6. The tooling of the aluminum alloy seat frame for the airplane as claimed in claim 1, wherein: the jacking mechanism is arranged on the inner side of the seat frame.

7. The tooling of the aluminum alloy seat frame for the airplane as claimed in claim 1, wherein: the jacking mechanism comprises a connecting block and a side jacking bolt which is connected onto the connecting block in a threaded manner, and the connecting block is connected onto the bottom plate in a threaded manner.

8. The tooling of the aluminum alloy seat frame for the airplane as claimed in claim 1, wherein: the bottom plate is provided with a plurality of through holes used for being connected with a milling machine, and the bottom plate is connected to a workbench of the milling machine through the through holes in a threaded mode.

9. The tooling of the aluminum alloy seat frame for the airplane as claimed in claim 1, wherein: the positioning assembly is detachably connected with the bottom plate.