CN110524279B

CN110524279B - Ji tablet back chipping device

Info

Publication number: CN110524279B
Application number: CN201910859828.5A
Authority: CN
Inventors: 王彬; 徐俏媚; 刘何荣; 郝小全
Original assignee: Sichuan Aerospace Changzheng Equipment Manufacturing Co Ltd
Current assignee: Sichuan Aerospace Changzheng Equipment Manufacturing Co Ltd
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2021-03-19
Anticipated expiration: 2039-09-11
Also published as: CN110524279A

Abstract

A wing-shaped slice back chipping device comprises supports and clamps which are symmetrically arranged on two sides; the support comprises a vertical plate; shaft holes are formed in the vertical plates, a clamp is hinged between the shaft holes, a plurality of positioning holes with the shaft holes as the circle centers are correspondingly formed in the vertical plates on the two sides, and an included angle is formed between the central lines of the adjacent holes; the clamp comprises a rotating plate and a clamping plate; the rotating plate is provided with a pressing part, and positioning holes are correspondingly formed in the two sides of the rotating plate; the vertical plate is matched with the positioning hole of the rotating plate. By adopting the device, the purpose of processing the processing surfaces of the wings at different angles by using one set of clamp can be realized. The production efficiency is greatly improved, the processing standard is unique, the manufacturing precision of the device is greatly improved, and the surface quality of the back chipping part is high.

Description

Ji tablet back chipping device

Technical Field

The invention relates to a wing piece back chipping device.

Background

The wing is an important part on the aircraft, and the function of the wing is to maintain the stability of the flight of the aircraft. In order to ensure that the fins do not interfere with other parts during assembly, the fins are manufactured by removing fillets at important locations, i.e., a back gouging process. However, the fins need to be back-rooted at a plurality of places and are positioned on planes with different angles. And to complete the back chipping of a certain face, a special clamping device is needed to fix the wing piece to enable the face to be in a horizontal position, and the inner fillet is machined off by adopting a milling method. Therefore, to complete the back chipping, multiple sets of clamping devices must be used. The use of multiple sets of clamping devices can result in low processing efficiency and serious time waste. In order to meet the requirement of rapidly and efficiently performing back chipping treatment when fins are manufactured in a large scale, a device is urgently needed, one surface needing back chipping can be located at a horizontal position by rapidly clamping the fins through the device, and after the back chipping of the surface is completed, other surfaces needing back chipping can be rapidly adjusted to the horizontal position through simple operation under the condition that the device is not detached.

At present, the basic situation of the fin back chipping device is as follows: the device consists of a plurality of sets of clamps, and each set of clamps corresponds to a root cleaning surface with an angle; each set of clamp consists of two clamping plates, two positioning pins and four connecting screws, and the positioning pins are fixed on one clamping plate. The back gouging operation of a face is as follows: placing the tab in a cavity of a splint; under the guide of the positioning pin, another clamping plate is installed; installing a connecting screw; the fixture was fixed to a milling machine for back chipping. And (4) detaching the clamp, replacing the clamp with another set of clamp, repeating the process, and performing back chipping on other parallel surfaces.

The main defects are as follows:

1. the back chipping work of one fin is completed, a plurality of sets of clamps are needed, the manufacturing period of the whole device is long, and the manufacturing cost is high.

2. The clamp needs to be replaced once every time a group of parallel surfaces is back gouged, the processing efficiency is low, the single cleaning time is long, and the batch production of products is not facilitated.

3. Each clamp has a manufacturing standard, the manufacturing standards of the whole device are not uniform, and the quality of the fin back chipping part is poor.

At present, no patent of the invention relating to the fin milling and back chipping device exists.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a device which can realize the processing of workpieces with different angles between processing planes.

In order to achieve the purpose, the invention adopts the following technical scheme:

a wing-shaped slice back chipping device comprises supports and clamps which are symmetrically arranged on two sides; the support comprises a vertical plate; shaft holes are formed in the vertical plates, a clamp is hinged between the shaft holes, a plurality of positioning holes with the shaft holes as the circle centers are correspondingly formed in the vertical plates on the two sides, and an included angle is formed between the central lines of the adjacent holes; the clamp comprises a rotating plate and a clamping plate; the rotating plate is provided with a pressing part, and positioning holes are correspondingly formed in the two sides of the rotating plate; the vertical plate is matched with the positioning hole of the rotating plate.

By adopting the device, the positioning pin is inserted between the different positioning holes of the vertical plate and the positioning hole of the rotating plate, so that the rotating plate can form different included angles with the horizontal plane. Therefore, the workpiece clamped in the clamp forms an angle different from the horizontal plane, and the purpose of processing the processing surfaces of the workpiece at different angles by using one set of clamp can be realized.

Preferably, the bearing further comprises a bushing arranged in the shaft hole and the positioning hole.

Preferably, the rotating plate is provided with a pressing member, and the pressing member includes a pressing block and a screw. The workpiece can be clamped more firmly.

Preferably, the wing pieces are clamped in the clamp, the upper parts of the wing pieces are pressed by the pressing part, planes with different angles with the horizontal plane are distributed on the wing pieces, and the angles are matched with included angles among the positioning holes of the vertical plates.

Preferably, the lower part of the support is fixedly connected with the bottom plate.

Preferably, the support further comprises a bottom plate and a reinforcing plate.

Drawings

Fig. 1 is a front view of the embodiment.

Fig. 2 is a left side view of fig. 1.

3 fig. 3 3 3 is 3 a 3 schematic 3 view 3 of 3 fig. 3 1A 3- 3 a 3. 3

Fig. 4 is a schematic view of fig. 1C-C.

Fig. 5 is a schematic view D-D of fig. 1.

Fig. 6 is a perspective view of the right stand of fig. 1.

Fig. 7 is a perspective view of the left support in fig. 1.

Fig. 8 is a perspective view of the flap.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example (b):

the device of the invention as shown in figures 1-8 comprises a left support and a right support which are symmetrically arranged and a clamp. The assembling and using method comprises the following steps:

1. a left support 2 and a right support 3 which are symmetrically arranged are arranged on a connecting bottom plate 1. The left support and the right support comprise vertical plates 17, reinforcing plates 19 and bottom plates 18; the vertical plates are correspondingly provided with shaft holes (D1, D2), the vertical plates on two sides are also correspondingly provided with 3 pairs of positioning holes (A1, A2, B1, B2, C1 and C2) which take the shaft holes as the centers of circles, short bushings 6 are arranged in the shaft holes and the positioning holes, and the center lines of adjacent holes form included angles, in the embodiment, the included angles between the center lines of the 1 st hole and the second hole and between the center lines of the 1 st hole and the 3 rd hole are 60 degrees and 75 degrees.

2. The clamp comprises a rotating plate 8 and a clamping plate 15, and the clamping plate is fixed on the rotating plate through an inner hexagon screw 16; the upper parts of the two sides of the rotating plate are correspondingly provided with holes and are hinged in shaft holes 20 of the left support and the right support through two pin screws 4. The upper part of the rotating plate is provided with a pressing part which comprises a pressing block 12 and a screw 13. The lower parts of the two sides of the rotating plate are also correspondingly provided with positioning holes; the vertical plate is matched with the positioning hole of the rotating plate. The locating holes and the holes are provided with long bushings 7.

3. The wing panel is arranged in a cavity between the rotating plate and the clamping plate, and the right side and the lower side of the wing panel are tightly attached; tightening a jacking screw 9 on the clamping plate by using an inner hexagonal wrench to prevent the wing panel from moving back and forth relative to the rotating plate; a gasket 14 is placed on the top of the wing piece, a pressing block 12 is rotated, one end of the pressing block 12 is positioned right above the rotating plate, the other end of the pressing block is positioned right above the wing piece, and a socket head cap screw 13 is screwed down to prevent the wing piece from moving up and down relative to the rotating plate.

4. The rotating plate is rotated to be in a vertical state, and the positioning pins 5 are inserted into the positioning holes of the corresponding rotating plate from the positioning holes (A1, A2) of the left vertical plate and the right vertical plate respectively, so that the spatial positions of the wing pieces are fixed. At this time, the A, B, E and F surfaces of the fins are horizontal. And (3) fixing the device on a milling machine, and cleaning and processing the inner fillets on the right side of the A surface, the left side of the B surface, the left side and the right side of the E surface and the left side of the F surface.

5. And pulling out the positioning bolts, rotating the rotating plate by 60 degrees, inserting the positioning bolts into the positioning holes of the corresponding rotating plate from the positioning holes (B1, B2) of the left vertical plate and the right vertical plate, and fixing the spatial positions of the fins again. At this time, the D surface of the fin is in a horizontal state. And (4) fixing the device on a milling machine, and cleaning and processing the inner fillets on the left side and the right side of the D surface.

6. And pulling out the positioning bolts, continuously rotating the rotating plate for 15 degrees, inserting the positioning bolts into the positioning holes of the corresponding rotating plate from the positioning holes (C1, C2) of the left vertical plate and the right vertical plate, and fixing the spatial positions of the wing pieces. At this time, the fin C-face is in a horizontal state. And (4) fixing the device on a milling machine, and cleaning and processing the fillet on the left side of the C surface.

The device of the invention has the advantages that:

1. the back chipping of the fins is completed, only one set of device is needed, the manufacturing period of the device is short, and the manufacturing cost is low.

2. After the inner fillets of a group of parallel surfaces are cleaned and processed, only simple operation is needed: and the positioning bolts on the two sides are pulled out, the rotating plate is rotated, and the positioning bolts on the two sides are inserted again, so that the inner fillets of the next group of parallel surfaces can be cleaned.

3. Frequent replacement of the clamp is not needed, and the production efficiency is greatly improved. Originally, only 6 pieces can be processed in one day, and 20 pieces can be processed in one day.

4. The whole device is provided with only one clamp, the reference is unique, the manufacturing precision of the device is greatly improved, and the surface quality of the back chipping part is high.

The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.

Claims

1. A wing-shaped fin back chipping device is characterized by comprising supports and clamps which are symmetrically arranged on two sides; the support comprises a vertical plate; shaft holes are formed in the vertical plates, a clamp is hinged between the shaft holes, a plurality of positioning holes with the shaft holes as the circle centers are correspondingly formed in the vertical plates on the two sides, and an included angle is formed between the central lines of the adjacent holes;

the clamp comprises a rotating plate and a clamping plate, the clamping plate is fixed on the rotating plate through an inner hexagon screw, and a jacking screw is arranged on the clamping plate; holes are correspondingly formed in the upper parts of the two sides of the rotating plate, the rotating plate is hinged in the shaft holes of the support through two pin screws, a pressing part is arranged on the rotating plate and comprises a pressing block and screws, positioning holes are correspondingly formed in the two sides of the rotating plate, and the vertical plate is matched with the positioning holes of the rotating plate;

the wing panel is arranged in the cavity between the rotating plate and the clamping plate, and the right side and the lower side of the wing panel are tightly leaned; tightening the jacking screw on the clamping plate to prevent the wing panel from moving back and forth relative to the rotating plate; the gasket is put on the fin top, rotates the briquetting, makes briquetting one end be in directly over the rotor plate, and one end is in directly over the fin, screws up the screw in order to prevent that the fin from taking place displacement from top to bottom for the rotor plate.

2. The device for back chipping of each of the wings as claimed in claim 1, wherein: the bearing also comprises a bushing arranged in the shaft hole and the positioning hole.

3. The device for back chipping of each of the wings as claimed in claim 1, wherein: planes with different angles with the horizontal plane are distributed on the wing pieces, and the angles are matched with included angles between the vertical plate positioning holes.

4. The device for back chipping of each of the wings as claimed in claim 1, wherein: the lower part of the support is fixedly connected with a bottom plate.

5. The device for back chipping of each of the wings as claimed in claim 1, wherein: the support also comprises a bottom plate and a reinforcing plate.