CN217141789U

CN217141789U - Orthopedic mechanism

Info

Publication number: CN217141789U
Application number: CN202220931900.8U
Authority: CN
Inventors: 何雪婷; 郭永江; 李正官; 孙小峰; 陈保国; 聂建文
Original assignee: Shanghai Aircraft Manufacturing Co Ltd
Current assignee: Shanghai Aircraft Manufacturing Co Ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-08-09
Anticipated expiration: 2032-04-21

Abstract

The utility model discloses an orthopedic mechanism relates to the orthopedic technical field of part. The orthopedic mechanism comprises a base, an adjusting bracket and an orthopedic component. The base is used for fixing a workpiece to be orthopedic; the adjusting bracket is arranged on the base and provided with an adjusting groove; the orthopedic assembly comprises two ejector rods, the two ejector rods are arranged in the adjusting groove in a sliding mode, and the two ejector rods are located on two sides of the workpiece to be orthopedic respectively and can clamp the workpiece to be orthopedic. The correcting mechanism can correct the buckling deformation of the large thin-wall aluminum casting, so that the welding quality of the aluminum casting is improved, and the assembly difficulty is reduced.

Description

Orthopedic mechanism

Technical Field

The utility model relates to a orthopedic technical field of part especially relates to an orthopedic mechanism.

Background

With the rapid development of aerospace industry in China, large-size thin-wall complex structures of high-strength aluminum alloy with high specific strength, long service life and good weight reduction are widely adopted, and the aluminum alloy has wide application prospects in the aerospace field.

However, when the large thin-wall aluminum casting is subjected to solution heat treatment, the cooling shrinkage of each part is difficult to keep uniform under the chilling action of warm water, so that the aluminum casting has internal stress, and the aluminum casting generates large buckling deformation. For aluminum castings with multiple curvature radii, the warping deformation can seriously reduce the welding quality, influence the subsequent assembly process of the component and need to be corrected.

In view of the above problems, it is necessary to develop an orthopedic mechanism to solve the problems of poor welding quality and difficult assembly caused by the buckling deformation of the aluminum casting.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an orthopedic mechanism can be orthopedic to the warpage of large-scale thin wall aluminum casting to improve the welding quality of aluminum casting and reduce the assembly degree of difficulty.

To achieve the purpose, the utility model adopts the following technical proposal:

an orthopedic mechanism comprising:

the base is used for fixing a workpiece to be orthopedic;

the adjusting bracket is arranged on the base and provided with an adjusting groove;

the correcting component comprises two ejector rods, the two ejector rods are arranged in the adjusting groove in a sliding mode, the two ejector rods are respectively located on two sides of the workpiece to be corrected and can clamp the workpiece to be corrected.

Preferably, the adjusting bracket is provided with a plurality of adjusting grooves at intervals, and each adjusting groove is correspondingly provided with the orthopedic assembly.

Preferably, the orthopedic mechanism further comprises a top block, and the top block is pressed against one side of the workpiece to be orthopedic by the ejector rods of the plurality of orthopedic components.

Preferably, one side of the ejector block, which is far away from the ejector rod, is provided with an arc-shaped abutting surface.

Preferably, the top block is provided with one side of the abutting surface is provided with a plurality of avoiding grooves at intervals.

Preferably, one end of each adjusting bracket is provided with a plug, the other end of each adjusting bracket is provided with a socket, and the plug can be inserted into the socket of the other adjusting bracket so as to connect the two adjusting brackets.

Preferably, the ejector rod is provided with a sliding part, a notch of the adjusting groove is provided with an anti-falling part, the sliding part is slidably arranged in the adjusting groove, and the anti-falling part is in sliding butt joint with the sliding part.

Preferably, the orthopedic mechanism further comprises a fixing assembly, the fixing assembly comprises a fixing bolt and a nut, the side wall of the adjusting groove is provided with a plurality of fixing holes at intervals along the length direction, and the fixing bolt is threaded with the nut after passing through the fixing holes and the mandril.

Preferably, a reinforcing rib is arranged at the joint of the adjusting bracket and the base.

Preferably, the adjustment bracket is integrally formed.

The utility model has the advantages that:

the utility model provides an orthopedic mechanism. In the orthopedic mechanism, the base can fix the workpiece to be orthopedic so as to keep the workpiece to be orthopedic stable. And then, two ejector rods of the orthopedic component slide through the adjusting grooves of the adjusting bracket, so that the two ejector rods are respectively positioned at two sides of the workpiece to be orthopedic and clamp the workpiece to be orthopedic. And the operator adjusts the positions of the two ejector rods according to the required shape correcting amount of the workpiece to be corrected, so that the workpiece to be corrected deforms in the opposite direction and keeps for a period of time to counteract the buckling deformation of the workpiece to be corrected, and the shape correcting is completed.

The correcting mechanism can correct the warping deformation of the aluminum casting, so that the welding quality of the aluminum casting is improved, and the assembly difficulty is reduced.

Drawings

Fig. 1 is a schematic structural view of an orthopedic mechanism according to a first embodiment of the present invention;

fig. 2 is a schematic structural view of an adjusting bracket and an orthopedic assembly according to a first embodiment of the present invention;

fig. 3 is a schematic structural diagram of a top block according to a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a push rod according to a first embodiment of the present invention;

fig. 5 is a schematic structural view of an adjusting bracket according to a second embodiment of the present invention.

In the figure:

100. aluminum casting; 101. a process platform;

1. a base; 2. adjusting the bracket; 3. an orthopedic component; 4. a top block;

11. a jack; 21. an adjustment groove; 22. a plug; 23. a socket; 24. an anti-drop part; 25. reinforcing ribs; 31. A top rod; 41. an avoidance groove;

211. a fixing hole; 311. a sliding part.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed 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 for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by 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.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

First embodiment

In the present embodiment, the workpiece to be reshaped is illustrated by taking a large thin-walled aluminum casting 100 as an example.

The present embodiment provides an orthopedic mechanism, as shown in fig. 1 and 2. The orthopedic mechanism comprises a base 1, an adjusting bracket 2 and an orthopedic component 3. The base 1 is used for fixing the aluminum casting 100, the adjusting support 2 is arranged on the base 1, the adjusting groove 21 is formed in the adjusting support 2, the orthopedic component 3 comprises two ejector rods 31, the two ejector rods 31 are arranged in the adjusting groove 21 in a sliding mode, the two ejector rods 31 are located on two sides of the aluminum casting 100 respectively, and the aluminum casting 100 can be clamped tightly.

In the orthopedic mechanism, the base 1 can fix the aluminum casting 100, so that the aluminum casting 100 is kept stable. Then, the two ejector rods 31 of the orthopedic assembly 3 are slid through the adjusting grooves of the adjusting bracket 2, so that the two ejector rods 31 are respectively positioned at two sides of the aluminum casting 100 and clamp the aluminum casting 100. The operator adjusts the positions of the two ejector rods 31 according to the required shape-righting amount of the aluminum casting 100, so that the aluminum casting 100 is deformed in opposite directions and is kept for a period of time to counteract the buckling deformation of the aluminum casting 100, and the shape-righting is completed.

The correcting mechanism can correct the warping deformation of the aluminum casting 100, so that the welding quality of the aluminum casting 100 is improved, and the assembly difficulty is reduced.

Specifically, the base 1 is provided with a plurality of insertion holes 11, when the aluminum casting 100 is cast, a plurality of process tables 101 are correspondingly cast according to the positions of the insertion holes 11, and the aluminum casting 100 and the base 1 can be fixed by inserting the process tables 101 into the corresponding insertion holes 11. After the orthopedic operation is finished, the process table 101 is cut off.

Preferably, as shown in fig. 1 and 2, the adjusting bracket 2 is provided with a plurality of adjusting grooves 21 at intervals, and each adjusting groove 21 is correspondingly provided with the orthopedic assembly 3. It can be understood that the aluminum casting 100 has a large size, and the macroscopic appearance of the aluminum casting 100 may cause buckling deformation at a plurality of positions due to different internal stresses generated by chilling with warm water at different positions during the heat treatment process. Because the aluminum casting 100 needs to be deformed in the opposite direction and kept for a period of time in the reshaping process, if each part which generates buckling deformation is reshaped in sequence, the time consumption is long, and the efficiency is low. The adjusting bracket 2 is provided with the plurality of adjusting grooves 21 at intervals, and each adjusting groove 21 is correspondingly provided with the shape correcting component 3, so that the shape correcting components 3 can be used for correcting a plurality of parts of the aluminum casting 100 at the same time, the shape correcting time is greatly reduced, the positions of the shape correcting components 3 do not need to be adjusted according to different parts, and the efficiency is improved.

It can be understood that the abutting surface of the ejector pin 31 and the aluminum casting 100 has a small area, and the abutting surface and the surface of the aluminum casting 100 cannot ensure complete fitting, and the surface of the aluminum casting 100 is easily scratched in the process of reshaping the aluminum casting 100. In order to take the versatility into consideration, the size and shape of the lift pins 31 are fixed so that the lift pins 31 can be adapted to aluminum castings 100 of different sizes, and thus it is impossible to change the size and shape of the lift pins 31 to prevent the surface of the aluminum casting 100 from being scratched.

As shown in fig. 1, to solve the above problem, the orthopedic mechanism further includes a top block 4, and the top block 4 is pressed against one side of the aluminum casting 100 by a plurality of top rods 31 of the orthopedic components 3. Before the aluminum casting 100 is reshaped, an appropriate top block 4 can be selected according to the specific shape of each buckling deformation part of the aluminum casting 100, the top block 4 is pressed against one side of the aluminum casting 100 through the ejector rods 31, the contact area between the aluminum casting 100 and the top block 4 during reshaping can be greatly increased, and the aluminum casting 100 is prevented from being scratched.

Further, one side of the ejector block 4 departing from the ejector rod 31 is provided with an arc-shaped abutting surface. Because the surface of the aluminum casting 100 has a plurality of different curvatures, when the aluminum casting 100 is pressed to shape the aluminum casting 100, the top block 4 with the pressing surface having the same curvature as the surface can be selected, so that after the shape is corrected, the curvature at the position meets the requirement, the unqualified curvature of the part pressed by the top block 4 caused by the improper curvature of the pressing surface of the top block 4 is prevented, and the shape correcting qualification rate is improved.

As shown in fig. 3, the top block 4 has a plurality of avoiding grooves 41 formed at intervals on one side thereof where the abutting surface is provided. It can be understood that a plurality of orthopedic components 3 can share one ejector block 4, the ejector block 4 is pressed against the surface of the aluminum casting 100 by a plurality of ejector rods 31, and for the region which does not need to be orthopedic, the ejector block 4 is provided with the avoiding groove 41 to avoid, on one hand, the machining amount can be reduced, the machining efficiency is improved, and, if the machining precision is not high enough, the region which does not need to be orthopedic is easily in contact with the aluminum casting 100 in advance, so that the region which needs to be orthopedic cannot be pressed against the aluminum casting 100 on the contrary, and the requirement for the machining precision is reduced by the arrangement of the avoiding groove 41. On the other hand, the internal stress of the aluminum casting 100 is prevented from changing due to the contact of the top block 4 and the area of the aluminum casting 100 which does not need to be reshaped, the final reshaping result is prevented from deviating, and the reshaping yield can be improved.

As shown in fig. 4, the jack 31 is provided with a slide portion 311, the notch of the adjustment groove 21 is provided with a retaining portion 24, the slide portion 311 is slidably provided in the adjustment groove 21, and the retaining portion 24 is slidably abutted to the slide portion 311. The anti-drop part 24 of the adjusting groove 21 can limit the sliding part 311 of the push rod 31, so that the sliding part 311 can only slide along the length direction of the adjusting groove 21 and can not be separated from the adjusting groove 21 through the opening of the adjusting groove 21, thereby stabilizing the push rod 31 in the adjusting and orthopedic processes and preventing the push rod 31 from being separated from the adjusting bracket 2.

As shown in fig. 1 and 2, the orthopedic mechanism further includes a fixing assembly including a fixing bolt and a nut, a plurality of fixing holes 211 are formed in the side wall of the adjustment groove 21 at intervals along the length direction, and the fixing bolt is threaded to the nut after passing through the fixing holes 211 and the ejector rod 31.

The ejector rod 31 can be fixed by inserting a fixing bolt into the fixing hole 211 and screwing the fixing bolt with a nut after passing through the ejector rod 31, so that the ejector rod 31 can apply pressure to the aluminum casting 100 for reshaping. The fixing holes 211 at different positions can improve the applicability of the orthopedic mechanism, and an operator can adjust the positions of the ejector rods 31 according to the position of the orthopedic region of the aluminum casting 100, so that the two ejector rods 31 in the same adjusting groove 21 can respectively press the ejector blocks 4 against the two sides of the aluminum casting 100.

It can be understood that, during the orthopedic procedure, orthopedic forces applied to the two side surfaces of the aluminum casting 100 are respectively transmitted to the adjusting bracket 2 and the base 1 through the two push rods 31, so that the joint of the adjusting bracket 2 and the base 1 is easily deformed or broken. To solve this problem, as shown in fig. 1 and 2, a reinforcing rib 25 is provided at the joint of the adjusting bracket 2 and the base 1. The reinforcing ribs 25 can improve the joint of the adjusting bracket 2 and the base 1, and ensure the stability and reliability of the orthopedic mechanism.

Preferably, the adjusting carriage 2 is integrally formed. The manufacturing method of the integrated molding can greatly improve the strength of the adjusting bracket 2, and has high efficiency and high yield.

Specifically, the adjusting bracket 2 is integrally formed by means of extrusion.

Second embodiment

To improve efficiency and reduce the amount of time required to shape, it is desirable to shape all areas of aluminum casting 100 at once. However, the aluminum casting 100 has a large size, so that the adjusting bracket 2 has a large size, and the adjusting bracket 2 needs to be arranged long, which results in poor strength and low compatibility of the adjusting bracket 2, and the aluminum casting 100 with other small sizes cannot be reshaped, which wastes resources.

To address this problem, the present embodiment provides an orthopedic mechanism, as shown in fig. 5. One end of the adjusting bracket 2 of the orthopedic mechanism is provided with a plug 22, the other end is provided with a socket 23, and the plug 22 can be inserted into the socket 23 of the other adjusting bracket 2 so as to connect the two adjusting brackets 2 and then be fixed on the base 1. The adjusting brackets 2 are in plug fit with the sockets 23 through the plugs 22, and the number of the connecting brackets can be selected according to actual needs so as to shape the large-size aluminum casting 100. Meanwhile, the disadvantage of the large-size adjusting bracket 2 is avoided, so that the adjusting bracket 2 can be set to be in a universal size, and the number of the adjusting brackets can be flexibly selected according to the size of the aluminum casting 100 and then the adjusting brackets are connected.

Alternatively, the two adjusting brackets 2 can also be connected by welding.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. An orthopedic mechanism, comprising:

the base (1), the said base (1) is used for fixing the work piece to be orthopedic;

the adjusting bracket (2) is arranged on the base (1), and the adjusting bracket (2) is provided with an adjusting groove (21);

the orthopedic assembly (3) comprises two ejector rods (31), the two ejector rods (31) are arranged in the adjusting groove (21) in a sliding mode, and the two ejector rods (31) are located on two sides of the workpiece to be orthopedic respectively and can clamp the workpiece to be orthopedic.

2. The orthotic mechanism according to claim 1, characterised in that the adjusting bracket (2) is provided at intervals with a plurality of adjustment grooves (21), each adjustment groove (21) being provided with the orthotic assembly (3) in correspondence.

3. The orthotic mechanism according to claim 2, further comprising a top block (4), the top block (4) being pressed against a side of the workpiece to be orthotic by the ejector pins (31) of several of the orthotic components (3).

4. The orthopaedic mechanism according to claim 3, wherein the side of the ejector block (4) facing away from the ejector rod (31) is provided with an arcuate bearing surface.

5. The orthotic mechanism according to claim 4, wherein the side of the top block (4) provided with the abutment surface is provided with a plurality of relief grooves (41) at intervals.

6. The orthopedic mechanism according to claim 1, characterized in that one end of the adjusting bracket (2) is provided with a plug (22) and the other end is provided with a socket (23), the plug (22) can be inserted into the socket (23) of the other adjusting bracket (2) to connect the two adjusting brackets (2).

7. The orthopedic mechanism according to claim 1, characterized in that the carrier rod (31) is provided with a sliding portion (311), the notch of the adjustment groove (21) is provided with a retaining portion (24), the sliding portion (311) is slidably provided in the adjustment groove (21), and the retaining portion (24) is slidably abutted to the sliding portion (311).

8. The orthopedic mechanism according to claim 1, characterized in that the orthopedic mechanism further comprises a fixing component, the fixing component comprises a fixing bolt and a nut, the side wall of the adjusting groove (21) is provided with a plurality of fixing holes (211) at intervals along the length direction, and the fixing bolt is connected with the nut in a threaded mode after passing through the fixing holes (211) and the mandril (31).

9. The orthopaedic mechanism according to claim 1, characterized in that the connection of the adjustment bracket (2) to the base (1) is provided with a reinforcement (25).

10. The orthopedic mechanism according to claim 1, characterized in that the adjusting bracket (2) is integrally formed.