Internal expansion type tool for aeronautical parts

Abstract

The utility model discloses an aeronautical part internal expanding type tool, and relates to the technical field of machining auxiliary equipment, the aeronautical part internal expanding type tool comprises a base, a plurality of linear guide rails are uniformly arranged on the upper surface of the base in the radial direction, a plurality of sliding seats are arranged on the linear guide rails in a sliding mode, a plurality of inclined blocks are arranged on the outer side edges of the bottoms of the sliding seats, and the inclined blocks are arranged on the base. Multiple inclined blocks are arranged on the base, the inner walls of the multiple inclined blocks are inclined planes, a positioning ring is arranged on the base, multiple limiting grooves are vertically formed in the positioning ring, and multiple L-shaped movable adjusting blocks are vertically arranged in the multiple limiting grooves in a sliding mode; according to the utility model, the moving distance of the sliding seat or the inclined block to the outer side can be respectively adjusted by moving the adjusting block, and when an inner hole of a part is expanded and fixed in a non-perfect circle (such as an ellipse), the extending distance can be respectively adjusted, so that fixed contact points are increased during expansion and fixing, the fixing is firmer, and the service life of the part is prolonged. And deformation of parts with thin side walls can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing auxiliary equipment, in particular to an internal expansion tooling for aviation parts. Background Art

[0002] During machining, aviation parts need to be fixed and limited. Current internal expansion tooling usually fixes the parts by synchronously moving the fixed components outward. This fixing method is suitable for parts with a perfect circular inner hole. However, for parts with non-perfect circular inner holes (such as elliptical), the fixing components often do not fully contact the inner side of the part, resulting in poor fixing effect. If the side walls of the parts are thin, the parts are prone to deformation. Therefore, an internal expansion tooling for aviation parts is urgently needed to be developed. Utility Model Content

[0003] In response to the above-mentioned deficiencies in the prior art, the present invention provides an internal expansion tooling for aviation parts. By moving the adjustment block, the distance that the slide or the inclined block moves outward can be adjusted respectively. When the inner hole of the part is non-circular (such as an ellipse) and is expanded and fixed, the extension distance can be adjusted respectively, so that the fixed contact points are increased during expansion and fixation, making the fixation more firm and preventing deformation of parts with thin side walls.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an internal expansion tooling for aviation parts, comprising a base, a plurality of linear guide rails evenly arranged radially on the upper surface of the base, a plurality of slides slidingly arranged on the plurality of linear guide rails, a plurality of inclined blocks arranged at the outer edges of the bottoms of the plurality of slides, a plurality of inner walls of the inclined blocks are inclined surfaces, a positioning ring is provided on the base, a plurality of limiting grooves are vertically opened on the positioning ring, a plurality of L-shaped movable adjustment blocks are vertically slidably arranged in the plurality of limiting grooves, the vertical section of the movable adjustment block is an inclined surface close to the side of the slide, the movable adjustment block is slidably connected to the slide, and a plurality of adjustment components capable of adjusting the height of the plurality of movable adjustment blocks are provided on the base.

[0005] Preferably, the plurality of linear guide rails are detachably arranged on the upper surface of the base.

[0006] Preferably, the plurality of linear guide rails are arranged on the upper surface of the base by screws.

[0007] Preferably, each group of the adjustment components includes a threaded rod, a clamping column and a clamping seat. A threaded hole is opened on the horizontal section of the movable adjustment block. The threaded rod passes through the threaded hole and is threadedly connected to the movable adjustment block. The clamping seat is set on the base. The clamping column is rotatably set in the clamping seat. The threaded rod passes through and is rotatably set in the clamping seat and the bottom is connected to the clamping column.

[0008] Preferably, a slide bar is provided on the vertical section of the movable adjustment block, and the slide bar is vertically slidably arranged in the limiting groove.

[0009] The utility model provides an internal expansion tooling for aviation parts, which has the following beneficial effects:

[0010] 1. The utility model can adjust the outward movement distance of the slide or the inclined block by moving the adjustment block. When the inner hole of the part is non-circular (such as an ellipse) and is tightened and fixed, the extension distance can be adjusted separately, so that the fixed contact points are increased during the expansion and fixing, making the fixation more firm and preventing the deformation of the part with thin side walls.

[0011] 2. When the height of the movable adjustment block needs to be adjusted, the threaded rod is screwed, and the clamping column set at the bottom of the threaded rod rotates in the clamping seat. The clamping seat limits the clamping column and the threaded rod to prevent displacement. The threaded rod drives the threaded movable adjustment block to move in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of an internal expansion tooling for aviation parts of the present utility model;

[0013] Figure 2 This is a top view of an internal expansion tooling for aviation parts according to the utility model;

[0014] Figure 3 This utility model is an internal expansion tool for aviation parts Figure 2 Cross-sectional view at AA in the middle.

[0015] In the figure: 1. Base; 2. Linear guide; 3. Screw; 4. Positioning ring; 4-1. Limiting groove; 5. Slide; 5-1. Bevel block; 6. Movable adjustment block; 6-1. Threaded hole; 6-2. Slide; 7. Clamping seat; 8. Threaded rod; 8-1. Clamping column. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] like Figure 1-3As shown, an internal expansion tooling for aviation parts includes a base 1, a plurality of linear guide rails 2 are evenly arranged on the upper surface of the base 1 in the radial direction, a plurality of slides 5 are slidably arranged on the plurality of linear guide rails 2, a plurality of inclined blocks 5-1 are arranged at the outer edges of the bottoms of the plurality of slides 5, the inner walls of the plurality of inclined blocks 5-1 are inclined surfaces, a positioning ring 4 is provided on the base 1, a plurality of limiting grooves 4-1 are vertically opened on the positioning ring 4, a plurality of L-shaped movable adjustment blocks 6 are vertically slidably arranged in the plurality of limiting grooves 4-1, the vertical section of the movable adjustment block 6 is close to the side surface of the slide 5 is an inclined surface, the movable adjustment block 6 is slidably connected to the slide 5, and a plurality of movable adjustment blocks 6 can be adjusted in height on the base 1. Multiple groups of adjustment components for adjustment; multiple linear guide rails 2 are detachably arranged on the upper surface of the base 1; multiple linear guide rails 2 are arranged on the upper surface of the base 1 by screws 3; each group of adjustment components includes a threaded rod 8, a clamping column 8-1 and a clamping seat 7, a threaded hole 6-1 is provided on the horizontal section of the movable adjustment block 6, the threaded rod 8 passes through the threaded hole 6-1 and is threadedly connected to the movable adjustment block 6, the clamping seat 7 is set on the base 1, the clamping column 8-1 is rotatably set in the clamping seat 7, the threaded rod 8 passes through and is rotatably set in the clamping seat 7 and the bottom is connected to the clamping column 8-1; a slide bar 6-2 is provided on the vertical section of the movable adjustment block 6, and the slide bar 6-2 is vertically slidably set in the limit groove 4-1.

[0018] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process, which are as follows:

[0019] According to the instruction manual Figure 1-3 It can be seen that when the present invention is in use, the aviation parts are sleeved on the outside of multiple slides 5 or inclined blocks 5-1, so that the multiple slides 5 and inclined blocks 5-1 are located in the inner holes of the parts. A limit block that can support the parts can be provided on the outer wall of each inclined block 5-1. By adjusting the adjustment components provided on the base 1 respectively, the height of the movable adjustment block 6 can be adjusted respectively, so that the movable adjustment block 6 moves vertically upward along the limit groove 4-1 provided on the positioning ring 4. Since the side walls corresponding to the movable adjustment block 6 and the inclined block 5-1 are both inclined surfaces that can cooperate with sliding, When the movable adjustment block 6 moves vertically upward, the inclined block 5-1 can move outward, and the inclined block 5-1 drives the connected slide 5 to slide outward on the linear guide rail 2, so that the outer wall of the slide 5 or the inclined block 5-1 is expanded and fixed to the part; the utility model can adjust the distance of the slide 5 or the inclined block 5-1 moving outward by moving the adjustment block 6. When the inner hole of the part is non-circular (such as elliptical) and is expanded and fixed, the extension distance can be adjusted separately, so that the fixed contact points are increased during expansion and fixation, the fixation is made more firm, and the parts with thinner side walls can be prevented from deformation.

[0020] In one possible implementation, a plurality of linear guide rails 2 are detachably provided on the upper surface of the base 1 , and the linear guide rails 2 can be removed from the base 1 for replacement or repair.

[0021] In one possible implementation, a plurality of linear guide rails 2 are provided on the upper surface of the base 1 by means of screws 3 , and the linear guide rails 2 can be easily disassembled by screwing the screws 3 .

[0022] There is a possible implementation. When the height of the movable adjustment block 6 needs to be adjusted, the threaded rod 8 is screwed, and the clamping column 8-1 set at the bottom of the threaded rod 8 rotates in the clamping seat 7. The clamping seat 7 limits the clamping column 8-1 and the threaded rod 8 to prevent displacement. The threaded rod 8 drives the threaded movable adjustment block 6 to move in the vertical direction.

[0023] There is a possible implementation in which a slide bar 6-2 is provided on the vertical section of the movable adjustment block 6, and the slide bar 6-2 is vertically slidably provided in the limit groove 4-1. The limit groove 4-1 limits the slide bar 6-2 and the movable adjustment block 6 to prevent the movable adjustment block 6 from offsetting during vertical movement.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An internal expansion tool for aviation parts, comprising a base (1), characterized in that: A plurality of linear guide rails (2) are evenly arranged on the upper surface of the base (1) in the radial direction, a plurality of slide seats (5) are slidably arranged on the plurality of linear guide rails (2), a plurality of inclined blocks (5-1) are arranged at the outer edges of the bottoms of the plurality of slide seats (5), the inner walls of the plurality of inclined blocks (5-1) are inclined surfaces, a positioning ring (4) is provided on the base (1), a plurality of limiting grooves (4-1) are vertically opened on the positioning ring (4), a plurality of L-shaped movable adjustment blocks (6) are vertically slidably arranged in the plurality of limiting grooves (4-1), the vertical section of the movable adjustment block (6) close to the side of the slide seat (5) is an inclined surface, the movable adjustment block (6) is slidably connected to the slide seat (5), and a plurality of adjustment components capable of adjusting the height of the plurality of movable adjustment blocks (6) are provided on the base (1).

2. The internal expansion tooling for aviation parts according to claim 1, characterized in that: The plurality of linear guide rails (2) are detachably arranged on the upper surface of the base (1).

3. The internal expansion tooling for aviation parts according to claim 2, characterized in that: The plurality of linear guide rails (2) are arranged on the upper surface of the base (1) via screws (3).

4. The internal expansion tooling for aviation parts according to claim 1, characterized in that: Each set of the adjustment components comprises a threaded rod (8), a clamping column (8-1) and a clamping seat (7); a threaded hole (6-1) is provided on the horizontal section of the movable adjustment block (6); the threaded rod (8) passes through the threaded hole (6-1) and is threadedly connected to the movable adjustment block (6); the clamping seat (7) is arranged on the base (1); the clamping column (8-1) is rotatably arranged in the clamping seat (7); the threaded rod (8) passes through and is rotatably arranged in the clamping seat (7) and its bottom is connected to the clamping column (8-1).

5. The internal expansion tooling for aviation parts according to claim 1, characterized in that: A slide bar (6-2) is provided on the vertical section of the movable adjustment block (6), and the slide bar (6-2) is vertically slidably provided in the limiting groove (4-1).

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