CN216067065U

CN216067065U - Shot blasting tool

Info

Publication number: CN216067065U
Application number: CN202122624051.XU
Authority: CN
Inventors: 张健; 王程; 赵忠海; 杨蕊; 曹安; 张千伟
Original assignee: Shanghai Aircraft Manufacturing Co Ltd
Current assignee: Shanghai Aircraft Manufacturing Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-03-18
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to the technical field of aircraft manufacturing and discloses a shot blasting tool. The shot blasting tool comprises a supporting component and clamping components, wherein the supporting component is provided with a supporting surface, the clamping components are provided with two groups, the two groups of clamping components are arranged on the supporting component and located on two sides of a workpiece, and the clamping components can clamp the workpiece and enable the surface of the workpiece to be attached to the supporting surface. On one hand, the clamping assembly can clamp and position the workpiece on the code spraying equipment, so that the code spraying work is ensured to be smoothly carried out; on the other hand, the supporting surface provides a supporting function for the workpiece, and the workpiece is effectively prevented from being deformed in the shot blasting process.

Description

Shot blasting tool

Technical Field

The utility model relates to the technical field of aircraft manufacturing, in particular to a shot blasting tool.

Background

The large skin of the airplane is a large dimensional component which is surrounded outside a fuselage skeleton and is fixed on the fuselage skeleton by using an adhesive or rivets. The thickness of the large-scale skin of the airplane is generally 2 mm-5 mm, and the large-scale skin of the airplane has the function of maintaining the appearance of the airplane and enabling the airplane to have good aerodynamic characteristics. The skin bears the aerodynamic action and then transmits the acting force to the connected fuselage skeleton, and because the stress is complex and the skin is directly contacted with the outside, the skin material is required to have high strength, good plasticity, smooth surface and higher corrosion resistance.

The fatigue strength requirement of the connection area of the window frame and the door frame of the fuselage skin is high, and shot peening strengthening treatment is often carried out on the peripheral area of the window frame and the door frame in production so as to improve the fatigue strength of the skin. The shot peening strengthening process is to utilize shot with high hardness and high strength to impact the surface of the part, so that the surface of the part generates strong plastic deformation, and a structure strengthening layer and a residual compressive stress layer are formed on the surface layer of the part, thereby improving the fatigue strength of the part and further prolonging the service life of the part. Therefore, the shot peening process is widely applied to the aviation industry at home and abroad.

In the peening processing process, need fix fuselage covering, present fixed frock is usually to carrying out the centre gripping to the border of fuselage covering, because fuselage covering size is great, and the deformation takes place easily for the covering profile among the peening strengthening process, seriously influences product quality, produces the defective products even.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a shot blasting tool, which solves the problem that the skin profile is easy to deform in the skin treatment process of the existing shot blasting strengthening device.

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

the utility model provides a peening frock, the peening frock includes:

a support assembly having a support surface; and

the clamping assemblies are arranged on the supporting assembly and located on two sides of the workpiece respectively, and can clamp the workpiece and enable the surface of the workpiece to be attached to the supporting surface.

As an alternative scheme, the shot blasting tool further comprises an installation frame, multiple groups of supporting assemblies are arranged on the supporting assemblies, and the multiple groups of supporting assemblies are arranged on the installation frame at intervals.

Alternatively, the supporting component and the mounting rack are detachably connected through a positioning piece.

As an alternative, the positioning piece comprises a first connecting plate and a second connecting plate which are arranged at an included angle, the first connecting plate is connected with the mounting frame, and the second connecting plate is connected with the supporting component.

Alternatively, the mounting frame is provided with a plurality of positioning holes at even intervals along the arrangement direction of the plurality of support components, and the first connecting plate is selectively matched and connected with part of the positioning holes so as to adjust the position of the support components on the mounting frame.

Alternatively, the lower end of the support member is provided with a boss on which the lower end of the workpiece abuts.

As an alternative, the clamping assembly comprises:

the clamping body is connected with the supporting component; and

a retaining member connected to the clamping body, the retaining member being selectively engageable against or disengageable from the workpiece.

As an alternative scheme, the retaining member with the one end that the centre gripping body links to each other is provided with the screw thread, it is provided with the screw hole to correspond on the centre gripping body, the retaining member is in screw-out in the screw hole, so that the retaining member butt or leave the work piece.

Alternatively, the clamping body and the support assembly are connected by a plurality of connectors.

As an alternative, a plurality of connecting holes are formed in the upper end of the supporting component, when the clamping body is matched and connected with one part of the connecting holes, the clamping component is located at a position where the workpiece can be clamped, and when the clamping body is matched and connected with the other part of the connecting holes, the clamping component is located at a position where the workpiece is avoided.

The utility model has the beneficial effects that:

the shot blasting tool comprises a supporting component and a clamping component, wherein the clamping component can clamp a workpiece, so that the workpiece is fixed, and the smooth operation of code spraying is ensured; the supporting component is provided with a supporting surface, the workpiece is attached to the supporting surface, and the supporting surface provides a supporting effect for the workpiece, so that the deformation of the workpiece in the shot blasting process is effectively reduced.

Drawings

FIG. 1 is an assembly schematic diagram of a shot peening tool clamping a workpiece according to the present invention;

FIG. 2 is a schematic view of the overall structure of the shot blasting tool provided by the utility model;

FIG. 3 is a schematic structural diagram of a positioning member provided in the present invention;

FIG. 4 is a first schematic structural view of a clamping assembly provided in the present invention;

FIG. 5 is a second schematic structural view of the clamping assembly provided in the present invention;

fig. 6 is a schematic view of a partial structure of the shot blasting tool provided by the utility model.

In the figure:

100. a support assembly; 110. a boss;

200. a clamping assembly; 210. a clamping body; 220. a locking member; 230. a connecting member;

300. a positioning member; 310. a first connecting plate; 320. a second connecting plate;

400. a mounting frame; 410. positioning holes;

500. and (5) a workpiece.

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 utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The large skin of the airplane is superior to the splicing structure of the small skin in the aspects of strength, waviness and the like, so that the large skin is generally adopted in the design of the large airplane. The large-scale skin has the dimension of about 6000mm and the width of about 2000mm, and shot peening strengthening is required to be carried out on the peripheries of the window frame and the door frame on the inner side and the outer side of the skin in the production process so as to improve the fatigue resistance, the tensile stress corrosion resistance, the crack production expansion resistance and the grinding resistance of the skin and further improve the service life of airplane parts. Good tooling design is required to control the deformation of the skin during the shot blasting process.

For this purpose, as shown in fig. 1, the present embodiment provides a shot peening tool for clamping and fixing a workpiece 500 (an aircraft fuselage skin). The shot peening tool comprises a support assembly 100 and a clamping assembly 200, wherein the support assembly 100 is provided with a support surface. The clamping assemblies 200 are arranged in two groups, the two groups of clamping assemblies 200 are arranged on the supporting assembly 100 at intervals and are respectively positioned at two sides of the workpiece 500, and the clamping assemblies 200 can clamp the workpiece 500 and enable the surface of the workpiece 500 to be attached to a supporting surface. Through setting up supporting component 100, provide the supporting role to work piece 500, effectively prevent work piece 500 atress deformation in the peening processing process, guarantee the better finished product quality of work piece 500.

In this embodiment, as shown in fig. 1, the shot peening tool further includes a mounting frame 400, the mounting frame 400 is a vertically disposed rectangular parallelepiped frame, two ends of the supporting component 100 are respectively connected to two long edges of the rectangular parallelepiped frame, and the workpiece 500 is located in the rectangular parallelepiped frame, so that the installation is more convenient, and the stability is better.

Preferably, as shown in fig. 1, the support assemblies 100 are provided in a plurality of groups, and the plurality of groups of support assemblies 100 are spaced apart from each other on the mounting frame 400. The multiple groups of support assemblies 100 jointly provide a support function for the workpiece 500, so that the workpiece 500 can be better supported and the workpiece 500 is not easy to deform. . In addition, the single supporting component 100 is light in weight, so that the independent operation of operators is facilitated, the utilization rate of personnel is greatly improved, and the problem of personnel shortage is solved.

When a plurality of groups of supporting assemblies 100 are installed, in order to better exert the supporting function of the supporting assemblies 100, the positions of doors and windows are preferably avoided; meanwhile, the shot blasting region needs to be avoided so as to avoid the influence of the shielding of the support assembly 100 on the shot blasting effect. In other embodiments, the position of the support assembly 100 on the mounting block 400 is flexibly set according to the structure of the workpiece 500 and the peening region.

Further, as shown in fig. 2, a boss 110 is disposed on a side of the lower end of the supporting component 100, which is attached to the workpiece 500, the lower end of the workpiece 500 abuts against the boss 110, the boss 110 provides an upward supporting force for the workpiece 500, and the clamping component 200 is engaged to stably fix the workpiece 500 to the supporting component 100.

In the embodiment, the supporting assembly 100 is made of a rigid polyvinyl chloride plate, the rigid polyvinyl chloride plate is low in cost, small in processing difficulty, and has strength and hardness required by a shot blasting process, so that repeated use in field operation is facilitated, excessive consumption of materials is reduced, and production cost is saved.

Further, as shown in fig. 2, the support assembly 100 is detachably connected to the mounting frame 400 through the positioning member 300, so that on one hand, the support assembly 100 is convenient to replace; on the other hand, before the support assembly 100 is installed, the positioning member 300 is installed at a specific position on the installation frame 400 to perform a positioning function, and then the corresponding support assembly 100 is connected to the positioning member 300, so as to ensure accurate positioning of the installation of the support assembly 100.

Specifically, as shown in fig. 3, the positioning member 300 includes a first connecting plate 310 and a second connecting plate 320, which are disposed at an angle, the first connecting plate 310 is connected to the mounting frame 400, and the second connecting plate 320 is connected to the support assembly 100. In this embodiment, the supporting component 100 is connected to the mounting frame 400 at an included angle of 90 °, so that the first connecting plate 310 and the second connecting plate 320 are perpendicular to each other, and the supporting component 100 is conveniently connected to the mounting frame 400. It should be noted that in other embodiments, the included angle between the first connecting plate 310 and the second connecting plate 320 may be properly set, and is not limited to be perpendicular to each other.

Preferably, referring to fig. 1, the mounting frame 400 is provided with a plurality of evenly spaced positioning holes 410 along the arrangement direction of the support assemblies 100, and the first connecting plate 310 can be selectively matched and connected with a part of the positioning holes 410 to adjust the position of the support assemblies 100 on the mounting frame 400. Specifically, as shown in fig. 3, a plurality of coupling holes are formed in the first coupling plate 310, and bolts are inserted through the coupling holes formed in the first coupling plate 310 and the positioning holes 410 formed in the mounting bracket 400 to couple the first coupling plate 310 and the mounting bracket 400 together. Similarly, the second connecting plate 320 is connected to the support member 100 by bolts.

It should be noted that the positioning member 300 may be connected to the left or right side of the support assembly 100, and the connection position may be selected according to convenience of installation. If necessary, the positioning members 300 may be disposed on both sides of the support assembly 100, so as to better ensure the stability of the connection between the support assembly 100 and the mounting frame 400.

Optionally, the positioning member 300 is made of an aluminum alloy, such as 6061 aluminum alloy, which has good formability, light weight, and structural strength capable of satisfying the requirement of stable connection.

Further, in order to more stably mount the support assembly 100 on the mounting bracket 400, as shown in fig. 2, the lower end of the support assembly 100 is provided with an l-type card slot, which is engaged with the mounting bracket 400, so that the mounting bracket 400 provides support for the support assembly 100, the stress on the positioning member 300 is reduced, and the safety of the connection between the support assembly 100 and the mounting bracket 400 is improved.

Preferably, referring to fig. 1, when the workpiece 500 is mounted on the support assembly 100, the end surface of the workpiece 500 is kept flush with the outer end surfaces of the support assemblies 100 on both sides, so as to facilitate positioning of the workpiece 500 and more accurate alignment of the automated peening equipment with the peening region.

Further, as shown in fig. 4, a clamping assembly 200 is disposed at the upper end of the supporting assembly 100, and as shown in fig. 5, the clamping assembly 200 is disposed at the lower end of the supporting assembly 100, the clamping assembly 200 includes a clamping body 210 and a locking member 220, one end of the clamping body 210 is connected to the supporting assembly 100, the locking member 220 is connected to the other end of the clamping body 210, and the locking member 220 can selectively abut against the workpiece 500 or leave the workpiece 500.

Specifically, a thread is disposed at one end of the locking member 220 connected to the clamping body 210, a threaded hole is correspondingly disposed on the clamping body 210, and the locking member 220 is screwed in and out of the threaded hole, so that the locking member 220 abuts against or leaves the workpiece 500. Preferably, the diameter of the end of the locker 220 abutting against the workpiece 500 is larger than the diameter of the end connected to the clamping body 210, so as to increase the contact area of the locker 220 with the workpiece 500, thereby enabling the locker 220 to abut against the surface of the workpiece 500 more firmly, and the larger contact area can reduce the indentation of the workpiece 500 under the same abutting force.

Further, the clamping body 210 is connected to the support member 100 by a plurality of connecting members 230, so that the connection between the clamping body 210 and the support member 100 is more secure. In this embodiment, the connecting member 230 is a bolt, which is simple in structure and convenient to operate.

After the shot blasting operation is completed, the workpiece 500 needs to be lifted up and moved to the next step, and in order to prevent the clamping unit 200 from interfering with the workpiece 500, the clamping unit 200 needs to be fixed at a position away from the workpiece 500. For this purpose, the upper end of the support member 100 is provided with a plurality of connecting holes, when the clamping body 210 is connected with one part of the connecting holes in a matching manner, the clamping member 200 is located at a position capable of clamping the workpiece 500, and when the clamping body 210 is connected with the other part of the connecting holes in a matching manner, the clamping member 200 is located at a position avoiding the workpiece 500.

In this embodiment, as shown in fig. 6, three connecting holes are arranged in a triangular shape at a position where the upper end of the supporting assembly 100 is connected to the clamping assembly 200, and when the clamping assembly 200 is connected to two connecting holes close to the supporting surface, the end of the clamping body 210 where the locking member 220 is arranged is far away from the supporting surface, so that the workpiece 500 can be conveniently lifted into or out of the supporting assembly 100. When the clamping assembly 200 is required to clamp the workpiece 500, the bolt on the upper side is loosened, the bolt on the lower side is unscrewed, the clamping assembly 200 is rotated anticlockwise, the connecting hole on the lower side of the clamping body 210 is aligned with the other connecting hole on the supporting assembly 100, the bolt penetrates through the connecting hole to be fixed, at the moment, one end, provided with the locking piece 220, of the clamping body 210 is close to the supporting surface, and the workpiece 500 can be clamped only by finely adjusting the locking piece 220.

It should be noted that the peening tool provided by the utility model is not limited to clamping the aircraft skin, and is also applicable to workpieces of other materials and shapes, and the shape of the support surface of the support assembly 200 only needs to be designed according to needs.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the utility model. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a peening frock, its characterized in that, the peening frock includes:

a support assembly (100), the support assembly (100) having a support surface; and

the clamping assembly (200) is provided with two sets of, two sets of clamping assembly (200) set up in just be located the both sides of work piece (500) respectively on supporting component (100), clamping assembly (200) can the centre gripping work piece (500) and make the surface laminating of work piece (500) is in on the holding surface.

2. A shot peening tool as claimed in claim 1, further comprising a mounting frame (400), wherein the support assemblies (100) are provided with a plurality of groups, and the plurality of groups of support assemblies (100) are arranged on the mounting frame (400) at intervals.

3. A shot peening tool according to claim 2, wherein the support assembly (100) is detachably connected with the mounting frame (400) through a positioning member (300).

4. A shot peening tool according to claim 3, wherein the positioning member (300) comprises a first connecting plate (310) and a second connecting plate (320) which are arranged at an included angle, the first connecting plate (310) is connected with the mounting frame (400), and the second connecting plate (320) is connected with the support assembly (100).

5. A shot peening tool according to claim 4, characterized in that a plurality of evenly spaced positioning holes (410) are arranged on the mounting frame (400) along the arrangement direction of the plurality of support assemblies (100), and the first connecting plate (310) is selectively matched and connected with part of the positioning holes (410) so as to adjust the positions of the support assemblies (100) on the mounting frame (400).

6. A shot peening tool according to any one of claims 1 to 5, characterized in that a boss (110) is provided at the lower end of the support component (100), and the lower end of the workpiece (500) abuts against the boss (110).

7. A shot peening tool according to any one of claims 1 to 5, wherein the clamping assembly (200) comprises:

a clamping body (210) connected to the support assembly (100); and

a retaining member (220) connected to the clamping body (210), the retaining member (220) being selectively abuttable on or off the workpiece (500).

8. A shot peening tool according to claim 7, characterized in that one end of the locking member (220) connected with the clamping body (210) is provided with a thread, a threaded hole is correspondingly arranged on the clamping body (210), and the locking member (220) is screwed in and out in the threaded hole so that the locking member (220) abuts against or leaves the workpiece (500).

9. A shot peening tool according to claim 7, wherein the clamping body (210) and the support assembly (100) are connected by a plurality of connectors (230).

10. A tooling for shot blasting according to claim 9, wherein a plurality of connecting holes are formed at the upper end of the supporting component (100), when the clamping body (210) is in fit connection with one part of the connecting holes, the clamping component (200) is located at a position capable of clamping the workpiece (500), and when the clamping body (210) is in fit connection with the other part of the connecting holes, the clamping component (200) is located at a position avoiding the workpiece (500).