Special-shaped curved surface supporting tool

Abstract

The utility model discloses a special-shaped curved surface supporting tool, and relates to the technical field of aircraft assembly. Comprising a fixture, a support is installed on the outer wall of the top of the fixture, a micrometer is arranged in the support, a pin hole is formed in one end of a movable shaft of the micrometer, a supporting piece is inserted into the pin hole, a special-shaped curved surface workpiece is supported on the supporting piece, an adjusting column is installed at the bottom of the micrometer, and the height of the movable shaft of the micrometer and the height of the supporting piece are adjusted by rotating the adjusting column. According to the special-shaped curved surface supporting tool, through the arrangement of the micrometer, the height of the supporting piece can be adjusted more accurately, the requirement for precision is high when the special-shaped curved surface supporting tool is attached to aircraft skin assembly, and the special-shaped curved surface supporting tool can be suitable for aircraft sections of different sizes by supporting special-shaped curved surface workpieces in a matched mode; the supporting piece is inserted into the pin hole in one end of the movable shaft of the micrometer, so that the supporting piece is convenient to disassemble, replacement or maintenance of the supporting piece is facilitated, and use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft assembly, in particular to a special-shaped curved surface supporting tool. Background Art

[0002] Aircraft skin assembly is an important part of the aircraft manufacturing process, involving the construction and molding of the aircraft's external structure. The skin is the outer structure of the aircraft fuselage and wings, usually made of thin metal sheets or composite materials. It has multiple functions such as protecting the aircraft's internal structure, maintaining the aircraft's appearance, and providing aerodynamic performance. When assembling aircraft skin, support tooling is required to ensure the accuracy and quality of the assembly.

[0003] The patent publication number is "CN204621892U", which is an adjustable curved panel support tooling, including a base, a positioning and fixing base plate, long and short movable supports, long and short lead screws, a nut, and a fixed support; the base is a flat structure, which is arranged at the bottom of the adjustable curved panel support tooling; the positioning and fixing base plate includes at least four groups of square plates, which are symmetrically welded at the left and right ends of the base; the long and short movable supports are both "∠"-shaped brackets welded by the same plates as the positioning and fixing base plate and round tubes of different lengths, and the long and short movable supports are positioned and installed on the positioning and fixing base plate through mounting holes; the nut is installed in the long and short movable support round tubes; the long and short lead screws are installed in the nut; and the fixed support is arranged at the center of the base. The utility model reduces the number of different curved panel support tooling, greatly improves the use efficiency of the tooling, saves funds and costs, and has a good application effect.

[0004] However, the support tooling with the above-mentioned and similar working principles has poor height adjustment accuracy, and is not convenient to be used for special-shaped curved surface workpieces during the support process. Due to the large size of aircraft sections and high precision requirements, imprecise height adjustment of the support parts may cause errors in the assembly of the aircraft skin, affecting subsequent use. Therefore, a special-shaped curved surface support tooling is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a special-shaped curved surface supporting tool to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special-shaped curved surface supporting tooling, including a jig, a support is installed on the top outer wall of the jig, a micrometer is arranged in the support, a pin hole is opened at one end of the movable shaft of the micrometer, a support is inserted in the pin hole, the special-shaped curved surface workpiece is supported on the support, and an adjustment column is installed at the bottom of the micrometer, and the height of the movable shaft of the micrometer and the support is adjusted by rotating the adjustment column.

[0007] Furthermore, the support member includes a pin column inserted into the pin hole, a mounting seat is installed on the top of the pin column, a solid ball is installed in the mounting seat, and a limit plate is sleeved on the outer wall of the mounting seat.

[0008] Furthermore, the support member includes a pin column inserted into the pin hole, a mounting seat is installed on the top of the pin column, a rubber inflatable ball is installed in the mounting seat, a limiting plate is sleeved on the outer wall of the mounting seat, and an air pump for deflating and inflating the rubber inflatable ball is installed at one end of the mounting seat.

[0009] Furthermore, a set screw is installed on the outer wall of the micrometer.

[0010] Furthermore, a groove is formed on the top outer wall of the support, a flange is sleeved on the outer wall of the micrometer, the micrometer and the flange are inserted into the groove, a pressure plate and a countersunk screw are provided in the groove, and the micrometer and the flange are fixed in the groove of the support by the pressure plate and the countersunk screw.

[0011] Furthermore, the bottom outer wall of the support and the bottom outer wall of the frame are both provided with screw clearance holes and fixing holes, and the screw clearance holes and fixing holes on the support are respectively provided with fixing screws and cylindrical pins, and the fixing screws and cylindrical pins are installed in the screw clearance holes and fixing holes on the frame through the screw clearance holes and fixing holes on the support.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The special-shaped curved surface supporting tooling, through the provision of a micrometer, makes it more accurate and precise when adjusting the height of the supporting member, which meets the high precision requirements when assembling aircraft skins. By cooperating with a plurality of special-shaped curved surface supporting toolings to support special-shaped curved surface workpieces, it can be suitable for aircraft sections of different sizes. By inserting the supporting member into the pin hole on one end of the movable shaft of the micrometer, the supporting member is easy to disassemble, which is beneficial for replacement or maintenance of the supporting member and is convenient for use.

[0014] At the same time, the rubber inflatable ball is provided to avoid wear on the surface of the special-shaped curved workpiece, and it plays a buffering role when the special-shaped curved workpiece is placed on the rubber inflatable ball. The hardness of the rubber inflatable ball can be adjusted by pumping the air pump. Through the set locking screw, after the movable end of the micrometer moves to the desired position, the position of the movable end of the micrometer can be fixed by tightening the locking screw, thereby ensuring that the position of the support does not move, which is beneficial to improving the accuracy of supporting the special-shaped curved workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2It is a schematic diagram of the overall side view structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the overall explosion structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the micrometer of the utility model;

[0019] Figure 5 It is a partial cross-sectional structural schematic diagram of the micrometer of the utility model;

[0020] Figure 6 This is a schematic diagram of the support structure of the utility model;

[0021] Figure 7 It is a schematic diagram of the structure of the rubber inflatable ball of the utility model.

[0022] In the figure: 1. jig; 110. groove; 120. set screw; 130. adjusting column; 140. support; 1401. solid ball; 1402. limit plate; 1403. pin; 1404. mounting seat; 150. pin hole; 160. flange; 2. support; 3. micrometer; 4. pressure plate; 5. countersunk screw; 6. cylindrical pin; 7. fixing screw; 8. rubber inflatable ball; 9. air pump; 10. special-shaped curved workpiece. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] During the aircraft skin assembly process, a workpiece supporting device is required. The special-shaped curved surface supporting tooling provided by the utility model is specifically used to support special-shaped curved surface workpieces during the aircraft skin assembly process. In the process of using this tooling to support special-shaped curved surface workpieces, it is necessary to adjust the height of the supporting parts in the workpiece according to actual usage requirements to ensure the normal assembly of the aircraft skin.

[0025] like Figure 1-Figure 7As shown, the utility model provides a technical solution: a special-shaped curved surface supporting tooling, including a jig 1, a support 2 is installed on the top outer wall of the jig 1, a micrometer 3 is arranged in the support 2, a pin hole 150 is opened at one end of the movable shaft of the micrometer 3, a support member 140 is inserted in the pin hole 150, a special-shaped curved surface workpiece 10 is supported on the support member 140, an adjusting column 130 is installed at the bottom of the micrometer 3, and the height of the movable shaft of the micrometer 3 and the support member 140 is adjusted by rotating the adjusting column 130.

[0026] It should be noted that when it is necessary to support the special-shaped curved surface workpiece 10, the staff rotates the adjustment column 130 on the micrometer 3 so that the height of the support member 140 is adapted to the required height of the special-shaped curved surface workpiece 10, and multiple special-shaped curved surface support fixtures provided by the utility model are used to complete the support of the special-shaped curved surface workpiece 10. During the support process, the height of the support member 140 in each special-shaped curved surface support fixture is adjusted individually as needed until it contacts the special-shaped curved surface workpiece 10 to provide support. The micrometer 3 is set to make the height of the support member 140 more accurate and precise when adjusting the height, which is in line with the high progress requirements during the assembly of aircraft skins. By supporting the special-shaped curved surface workpiece 10 with multiple special-shaped curved surface support fixtures, it can be suitable for aircraft sections of different sizes. The support member 140 is inserted into the pin hole 150 on one end of the movable shaft of the micrometer 3, so that the support member 140 is easy to disassemble, which is convenient for replacement or maintenance of the support member 140 and convenient for use.

[0027] like Figure 6 As shown, the support member 140 includes a pin 1403 inserted into the pin hole 150 , a mounting seat 1404 is installed on the top of the pin 1403 , a solid ball 1401 is installed in the mounting seat 1404 , and a limiting plate 1402 is sleeved on the outer wall of the mounting seat 1404 .

[0028] It should be noted that by inserting the pin 1403 into the pin hole 150, the process of disassembling and installing the support member 140 is simple and quick, and it is convenient for the staff to use. The solid ball 1401 can be used to support the special-shaped curved workpiece 10, and the limiting plate 1402 can make the solid ball 1401 exposed.

[0029] like Figure 7 As shown, the support member 140 includes a pin 1403 inserted into the pin hole 150, a mounting seat 1404 is installed on the top of the pin 1403, a rubber inflatable ball 8 is installed in the mounting seat 1404, a limiting plate 1402 is sleeved on the outer wall of the mounting seat 1404, and an air pump 9 for deflating and inflating the rubber inflatable ball 8 is installed at one end of the mounting seat 1404.

[0030] It should be noted that, according to actual usage, the solid ball 1401 can be replaced with a rubber inflatable ball 8. Compared with the solid ball 1401, the outer wall of the rubber inflatable ball 8 is elastic, which is beneficial to avoid wear on the surface of the special-shaped curved workpiece 10, and when the special-shaped curved workpiece 10 is placed on the rubber inflatable ball 8, it plays a buffering role. By setting the air pump 9, the hardness of the rubber inflatable ball 8 can be adjusted. At the same time, when the gas inside the rubber inflatable ball 8 is insufficient, it can be replenished, which is convenient for use.

[0031] like Figure 2 As shown, a set screw 120 is installed on the outer wall of the micrometer 3.

[0032] It should be noted that by setting the set screw 120, when the movable end of the micrometer 3 is moved to the desired position, the position of the movable end of the micrometer 3 can be fixed by tightening the set screw 120, ensuring that the movable end of the micrometer 3 does not move in a stable position, thereby ensuring that the position of the support member 140 does not move, which is beneficial to improving the accuracy of supporting the special-shaped curved surface workpiece 10 and is convenient for use.

[0033] like Figure 3 and Figure 4 As shown, a groove 110 is formed on the top outer wall of the support 2, a flange 160 is sleeved on the outer wall of the micrometer 3, the micrometer 3 and the flange 160 are inserted into the groove 110, a pressure plate 4 and a countersunk screw 5 are provided in the groove 110, and the micrometer 3 and the flange 160 are fixed in the groove 110 of the support 2 by the pressure plate 4 and the countersunk screw 5.

[0034] It should be noted that during installation, the micrometer 3 is inserted into the groove 110 from top to bottom. The flange 160 is arranged so that the micrometer 3 will not continue to move downward. The micrometer 3 can be fixed on the support 2 by the cooperation of the pressure plate 4 and the countersunk screw 5.

[0035] like Figure 3 As shown, the bottom outer wall of the support 2 and the bottom outer wall of the frame 1 are both provided with screw clearance holes and fixing holes, and the screw clearance holes and fixing holes on the support 2 are respectively provided with fixing screws 7 and cylindrical pins 6, and the fixing screws 7 and cylindrical pins 6 are installed in the screw clearance holes and fixing holes on the frame 1 through the screw clearance holes and fixing holes on the support 2.

[0036] It should be noted that when installing the support 2 on the frame 1, first insert the cylindrical pin 6 into the fixing hole on the frame 1 through the fixing hole on the support 2 to preliminarily fix the position of the support 2, so that the screw clearance hole on the support 2 corresponds to the screw clearance hole on the frame 1, and then install the fixing screw 7 through the screw clearance hole to fix the support 2 on the frame 1. The support 2 is detachable, which is conducive to the subpackaging and transportation of this support tooling.

[0037] 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 the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A special-shaped curved surface support tool, comprising a frame (1), characterized in that: A support (2) is installed on the top outer wall of the mold frame (1), a micrometer (3) is arranged in the support (2), a pin hole (150) is opened at one end of the movable shaft of the micrometer (3), a support member (140) is inserted in the pin hole (150), a special-shaped curved surface workpiece (10) is supported on the support member (140), and an adjustment column (130) is installed at the bottom of the micrometer (3), and the height of the movable shaft of the micrometer (3) and the support member (140) can be adjusted by rotating the adjustment column (130).

2. The special-shaped curved surface support tooling according to claim 1, characterized in that: The support member (140) comprises a pin column (1403) inserted into the pin hole (150), a mounting seat (1404) is installed on the top of the pin column (1403), a solid ball (1401) is installed in the mounting seat (1404), and a limiting plate (1402) is sleeved on the outer wall of the mounting seat (1404).

3. The special-shaped curved surface support tooling according to claim 1, characterized in that: The support member (140) comprises a pin (1403) inserted into the pin hole (150), a mounting seat (1404) is installed on the top of the pin (1403), a rubber inflatable ball (8) is installed in the mounting seat (1404), a limiting plate (1402) is sleeved on the outer wall of the mounting seat (1404), and an air pump (9) for pumping air into the rubber inflatable ball (8) is installed at one end of the mounting seat (1404).

4. The special-shaped curved surface support tooling according to claim 1, characterized in that: A set screw (120) is installed on the outer wall of the micrometer (3).

5. The special-shaped curved surface support tooling according to claim 1, characterized in that: The top outer wall of the support (2) is provided with a groove (110), the outer wall of the micrometer (3) is sleeved with a flange (160), the micrometer (3) and the flange (160) are inserted into the groove (110), a pressure plate (4) and a countersunk screw (5) are arranged in the groove (110), and the micrometer (3) and the flange (160) are fixed in the groove (110) of the support (2) by the pressure plate (4) and the countersunk screw (5).

6. The special-shaped curved surface support tooling according to claim 1, characterized in that: The bottom outer wall of the support (2) and the bottom outer wall of the mold frame (1) are both provided with screw clearance holes and fixing holes, and the screw clearance holes and fixing holes on the support (2) are respectively provided with fixing screws (7) and cylindrical pins (6), and the fixing screws (7) and cylindrical pins (6) are installed in the screw clearance holes and fixing holes on the mold frame (1) through the screw clearance holes and fixing holes on the support (2).

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