Shape-retaining support structure for fixing products in flexible pallet systems of drilling and riveting equipment

Abstract

The utility model discloses a shape-preserving support structure, and in particular discloses a shape-preserving support structure for fixing products of a flexible pallet system of drilling and riveting equipment, which belongs to the technical field of aircraft production process equipment design and manufacturing. Provided is a shape-preserving support structure for fixing products of a flexible pallet system of drilling and riveting equipment, which can support aircraft fuselage wall panels during the drilling and riveting process as needed. The shape-preserving support structure includes a frame of a flexible pallet system, and the shape-preserving support structure also includes at least two or more groups of adjustable single-arm support frame groups, each group of adjustable single-arm support frame groups is arranged on two long sides of the frame along the length direction of the frame; the wall panel skin during the drilling and riveting process maintains its proper curvature with the cooperation of each group of adjustable single-arm support frame groups.

Description

Technical Field

[0001] The utility model relates to a shape-keeping support structure, in particular to a shape-keeping support structure used for fixing products of a flexible cardboard system of drilling and riveting equipment, and belongs to the technical field of design and manufacturing of aircraft production process equipment. Background Art

[0002] Explanation of terms

[0003] 1) Aircraft parts refer to the assembly of a part of the aircraft during the manufacturing stage;

[0004] 2) Automatic drilling and riveting machine refers to a kind of equipment mainly used in the manufacture of aviation and aerospace parts. This equipment uses machines to complete the process of making holes and installing connectors that could only be done manually;

[0005] 3) Automatic drilling and riveting refers to a new process used in the assembly process of aircraft parts. This method uses an automatic drilling and riveting machine to complete the process of making holes, countersinking, injecting glue, inserting connectors or installing connectors on pre-connected parts;

[0006] 4) Product or skin assembly refers to an aircraft component with an uncertain curvature consisting of the outer skin and long stringers in the aircraft component;

[0007] 5) Curvature refers to the shape of the skin component formed at different radii.

[0008] In the aircraft manufacturing industry, when using online programmed automatic drilling and riveting equipment to position products, due to the different total lengths of aircraft wall panel components, the parts of each wall panel product that are not supported by the pallet will fall and deform to varying degrees due to their own weight after positioning. If products with large deformations are not controlled, they may not be able to be processed by automatic drilling and riveting. To avoid this, conformal support is a must for areas with large spans and obvious deformations of wall panel components.

[0009] When the existing wall panel components are automatically drilled and riveted for assembly, the method of maintaining shape is to add a pad to the pallet to forcibly lift the fallen product a little, but there is no necessary means for the deformed parts. The main disadvantages of the existing technology are as follows:

[0010] 1) It is impossible to directly apply force to control the falling range of the product;

[0011] 2) The pads added on the pallet side have a limit value, which may lead to other uncontrollable factors causing product riveting defects;

[0012] 3) There is a hidden danger of the pad falling during the processing, which directly affects the product quality and processing progress;

[0013] 4) When the span of a single long girder of the wall panel assembly exceeds a certain limit, the use of the spacer method will have no effect, that is, there is a problem that a considerable number of rivets cannot be processed by the automatic drilling and riveting method. Utility Model Content

[0014] The technical problem to be solved by the utility model is to provide a shape-preserving support structure for fixing products of a flexible cardboard system of drilling and riveting equipment, which can support aircraft fuselage wall panels during the drilling and riveting process as required.

[0015] The technical solution adopted to solve the above technical problems is: a shape-preserving support structure for fixing the flexible pallet system products of drilling and riveting equipment, including a frame of the flexible pallet system, the shape-preserving support structure also includes at least two or more groups of adjustable single-arm support frame groups, and each group of adjustable single-arm support frame groups is arranged on the two long sides of the frame along the length direction of the frame; the wall panel skin during the drilling and riveting process maintains its proper curvature with the cooperation of each group of adjustable single-arm support frame groups.

[0016] Furthermore, each group of adjustable single-arm support frames is formed in pairs, staggered on the left and right long sides, or arranged on the two long sides of the frame with the support points adjustable according to the deformation state of the wall panel.

[0017] A preferred embodiment of the above scheme is that each group of adjustable single-arm support frame groups includes a buffer and conformal component group, an adjustment support component group and a sliding mounting component group. The buffer and conformal component group is detachably arranged at the free end of the adjustment support component group, and the adjustment support component group is movably arranged on the long side of the frame along the length direction of the frame through the sliding mounting component group.

[0018] Furthermore, the buffer shape-keeping component group includes a nylon shape-keeping block and a detachable fixing and mounting mechanism, and the nylon shape-keeping block is arranged at the free end of the adjustment support component group through the detachable fixing and mounting mechanism.

[0019] A preferred embodiment of the above scheme is that the detachable fixed installation mechanism is a connecting bolt pair and a fixed installation hole arranged on the free end of the nylon conformal block and the adjusting support member group, and the nylon conformal block is detachably arranged at the free end of the adjusting support member group with the cooperation of the fixed installation hole through the connecting bolt pair; or the detachable fixed installation mechanism is a mushroom connecting head and a mushroom-shaped clamping groove, the mushroom connecting head is arranged at the installation end of the nylon conformal block, and the mushroom-shaped clamping groove is arranged at the free end of the adjusting support member group, and the nylon conformal block is detachably arranged at the free end of the adjusting support member group through the cooperation of the mushroom connecting head and the mushroom-shaped clamping groove.

[0020] Furthermore, the adjustment support member group includes a support arm, an arm base and an adjustment fastener group. Adjustment mechanisms are respectively arranged on the support arm and the arm base. The support arm is arranged on the arm base with an adjustable inclination angle through the adjustment mechanism in cooperation with the adjustment fastener group. The arm base is installed on the sliding mounting member group. The nylon conformal block is detachably installed on the top of the support arm in cooperation with the detachable fixed mounting mechanism.

[0021] A preferred embodiment of the above scheme is that the adjustment mechanism is a long strip installation adjustment hole respectively arranged on the support arm and the arm base, a mounting screw hole is arranged at the fixed end of the support arm, and a group of long strip installation adjustment holes is arranged on the support arm along the length direction; two groups of long strip installation adjustment holes extending along the length direction are arranged parallel to each other on the arm base; the adjustment fastener group includes two groups of handle nuts and two sets of bolts, and the support arm is arranged on the arm base with an adjustable inclination angle through the mounting screw holes and each long strip installation adjustment hole in cooperation with the two groups of handle nuts and the two sets of bolts.

[0022] Furthermore, the sliding mounting assembly includes a slide rail connecting block and a single-point slide rail protection support rod, the arm base is installed on the slide rail connecting block, and the slide rail connecting block is movably arranged on the long side of the frame along the length direction of the frame with the cooperation of the single-point slide rail protection support rod.

[0023] A preferred embodiment of the above scheme is that the conformal support structure further includes a plurality of sets of auxiliary conformal brackets, a flexible cardboard assembly is provided on the frame, and at least two sets of auxiliary conformal brackets are arranged on both sides of each set of flexible cardboard assembly.

[0024] Furthermore, each set of auxiliary conformal brackets includes an L-shaped conformal mounting frame and a horizontal extension rod. A telescopic groove is provided on the L-shaped conformal mounting frame. The horizontal extension rod is arranged in the telescopic groove in a horizontally telescopic manner. The L-shaped conformal mounting frame is fixed to the flexible cardboard assembly through its vertical edge.

[0025] The beneficial effects of the utility model are as follows: the technical solution provided by the application is based on the frame of the external flexible card system, and the shape-keeping support structure of the application is formed by adding and setting more than two groups of adjustable single-arm support frame groups, and each group of adjustable single-arm support frame groups is arranged on the two long sides of the frame along the length direction of the frame; then the wall panel skin in the drilling and riveting process is maintained at its proper curvature with the cooperation of each group of adjustable single-arm support frame groups. In this way, since each group of adjustable single-arm support frame groups constituting the shape-keeping support structure of the application is movably arranged on the frame, the position and support node can be adjusted according to the deformation position and deformation state of the aircraft fuselage wall panel in the drilling and riveting process with the cooperation of the frame, which changes the current situation that not only the position cannot be adjusted when the pad is supported, but also the support point and support strength cannot be changed according to the changes in the drilling and riveting process, and each group of adjustable single-arm support frame groups of the application are used to support the deformed parts, and the aircraft fuselage wall panel in the drilling and riveting process can be supported as needed, ensuring the reliability, stability and operability of shape-keeping. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an adjustable single-arm support frame group involved in the shape-preserving support structure for fixing the flexible pallet system product of the drilling and riveting equipment of the utility model;

[0027] Figure 2 This is a schematic diagram of the installation position of the adjustable single-arm support frame group on the frame involved in the shape-preserving support structure for fixing the flexible pallet system product of the drilling and riveting equipment of the utility model, and a schematic diagram of the installation position of the auxiliary shape-preserving bracket involved on the flexible pallet assembly.

[0028] Marked in the figure: long side 1, nylon conformal block 2, connecting bolt pair 3, support arm 4, arm base 5, long strip installation adjustment hole 6, handle nut 7, slide rail connecting block 8, single-point slide rail protection support rod 9, flexible pallet assembly 10, L-shaped conformal mounting frame 11, horizontal extension rod 12. DETAILED DESCRIPTION

[0029] like Figure 1 , Figure 2The utility model provides a shape-preserving support structure for fixing the flexible pallet system product of the drilling and riveting equipment, which can support the aircraft fuselage wall panel during the drilling and riveting process as needed. The shape-preserving support structure includes a frame of the flexible pallet system, and the shape-preserving support structure also includes at least two or more groups of adjustable single-arm support frame groups, each group of adjustable single-arm support frame groups is arranged on the two long sides 1 of the frame along the length direction of the frame; the wall panel skin during the drilling and riveting process maintains its proper curvature with the cooperation of each group of adjustable single-arm support frame groups. The technical solution provided by the present application is based on the frame of the external flexible pallet system, and the shape-preserving support structure of the present application is formed by adding and setting two or more groups of adjustable single-arm support frame groups, and each group of adjustable single-arm support frame groups is arranged on the two long sides of the frame along the length direction of the frame; then the wall panel skin during the drilling and riveting process maintains its proper curvature with the cooperation of each group of adjustable single-arm support frame groups. In this way, since the various groups of adjustable single-arm support frame groups that constitute the shape-preserving support structure of the present application are movably arranged on the frame, the position and support node adjustments can be performed with the cooperation of the frame according to the deformation position and deformation state of the aircraft fuselage wall panel during the drilling and riveting process. This changes the existing situation in the art that not only the position cannot be adjusted when supporting through pads, but also the support point and support strength cannot be changed according to changes in the drilling and riveting process. The various groups of adjustable single-arm support frame groups of the present application are used to support the deformed parts, and the aircraft fuselage wall panel during the drilling and riveting process can be supported as needed, ensuring the reliability, stability and operability of the shape preservation.

[0030] Correspondingly, according to the structural characteristics of the flexible pallet system, in order to improve the effect of conformal support, the conformal support structure of the present application also includes multiple sets of auxiliary conformal brackets. Combined with the structural characteristics of the flexible pallet assembly 10 provided on the frame, the present application arranges at least two sets of auxiliary conformal brackets on both sides of each set of flexible pallet assembly 10; and each set of adjustable single-arm support brackets are paired, staggered on the left and right long sides 1, or arranged on the two long sides 1 of the frame with adjustable support points according to the deformation condition of the wall panel mask. At this time, each set of auxiliary conformal brackets includes an L-shaped conformal mounting frame 11 and a horizontal extension rod 12. A telescopic slot is provided on the L-shaped conformal mounting frame 11. The horizontal extension rod 12 is arranged in the telescopic slot in a telescopic manner in the horizontal direction. The L-shaped conformal mounting frame 11 is fixedly mounted on the flexible pallet assembly 10 through its vertical edge. Thereby, conformal support for the wall panel follow-up drilling position is achieved.

[0031] Furthermore, as the main component improved in this application, in order to facilitate manufacturing, installation, use and subsequent repair and maintenance, each group of adjustable single-arm support frame groups described in this application includes a buffer conformal component group, an adjustment support component group and a sliding installation component group. The buffer conformal component group is detachably arranged at the free end, and the adjustment support component group is movably arranged on the long side 1 of the frame along the length direction of the frame through the sliding installation component group. The preferred mode is that the buffer conformal component group includes a nylon conformal block 2 and a detachable fixed installation mechanism, and the nylon conformal block 2 is arranged at the free end of the adjustment support component group through the detachable fixed installation mechanism. At this time, the detachable fixed installation mechanism described in the present application is a connecting bolt pair 3 and a fixed installation hole arranged on the free end of the nylon conformal block and the adjusting support member group. The nylon conformal block 2 is detachably arranged at the free end of the adjusting support member group through the connecting bolt pair 3 in cooperation with the fixed installation hole; or the detachable fixed installation mechanism is a mushroom connecting head and a mushroom-shaped clamping groove. The mushroom connecting head is arranged at the installation end of the nylon conformal block 2, and the mushroom-shaped clamping groove is arranged at the free end of the adjusting support member group. The nylon conformal block 2 is detachably arranged at the free end of the adjusting support member group through the cooperation of the mushroom connecting head and the mushroom-shaped clamping groove; the adjusting support member group includes a support arm 4, an arm base 5 and an adjusting fastener group. Adjustment mechanisms are respectively arranged on the support arm 4 and the arm base 5. The support arm 4 is arranged on the arm base 5 with an adjustable inclination angle through the adjustment mechanism in cooperation with the adjusting fastener group. The arm base 5 is installed on the sliding mounting member group, and the nylon conformal block 2 is detachably installed on the top of the support arm 4 in cooperation with the detachable fixed installation mechanism. Correspondingly, the adjustment mechanism is a strip-shaped installation adjustment hole 6 respectively arranged on the support arm 4 and the arm base 5, a mounting screw hole is arranged at the fixed end of the support arm 4, and a group of strip-shaped installation adjustment holes 6 are arranged on the support arm 4 along the length direction; two groups of strip-shaped installation adjustment holes 6 extending along the length direction are arranged parallel to each other on the arm base 5; the adjustment fastener group includes two groups of handle nuts 7 and two sets of bolts, and the support arm 4 is arranged on the arm base 5 with an adjustable inclination angle through the mounting screw holes and each strip-shaped installation adjustment hole 6 under the cooperation of the two groups of handle nuts 7 and the two sets of bolts. For the convenience of installation and adjustment, the sliding installation component group described in the present application includes a slide rail connection block 8 and a single-point slide rail protection support rod 9, the arm base 5 is installed on the slide rail connection block 8, and the slide rail connection block 8 is arranged on the long side 1 of the frame movably along the length direction of the frame under the cooperation of the single-point slide rail protection support rod 9.

[0032] In summary, the above technical solution of the present application solves the following technical problems:

[0033] 1) Use 1-2 pairs of single-arm supports, i.e. the above-mentioned adjustable single-arm support frame set, to support all the obvious deformation parts of the longer wall panel components, improve the product deformation, and reduce the unpredictable risks during the riveting process;

[0034] 2) According to the product appearance, the nylon block is replaced with a nylon plate to support a larger length and area;

[0035] 3) For products of any structural form, the product shape can be maintained by adjusting the angle or length of the support arm;

[0036] 4) Through the single-arm support and its combined conformal effect, the product is ensured to achieve maximum automatic drilling and riveting capabilities.

[0037] The technical solution of the present application is further described below through specific embodiments:

[0038] 1) This application consists of the following 8 components to form a set of maximized single-arm support;

[0039] 2) This application uses 1-4 single-arm supports to achieve conformal lengths of 5-13 m wall panels;

[0040] 3) Due to the great differences in the appearance of various wall panel components, a single-arm support is required to support the edge of the product at any angle to maintain shape;

[0041] 4) Depending on the product appearance, the support arm can be replaced with a longer size to meet the needs of actual use.

[0042] Design features, uses and effects of each part:

[0043] Slide rail connection block: used to connect with the slide block on the linear guide rail on the frame of the automatic drilling and riveting machine;

[0044] Single-point slide rail protection support: used to share the shear force generated by the deadweight of the single-arm support on the linear guide rail after being locked on the working frame of the automatic drilling and riveting machine;

[0045] Support arm base: used for connecting and adjusting the angle of the support arm, with two oblong holes for locking the handle nuts to prevent the support arm from falling;

[0046] Support arm: used to adjust to a suitable angle to support and maintain the shape of the wall panel assembly. It can be replaced with a longer support arm if necessary.

[0047] Handle nut and hexagonal bolt: 2 sets of locking nuts in different positions can ensure that the support arm will not rotate or move after being locked;

[0048] Nylon conformal block bracket: used to connect the support arm and the nylon conformal block;

[0049] Hexagonal bolts and nuts and washers: used to fasten nylon conformal blocks;

[0050] Nylon conformal blocks: After the cylindrical nylon blocks are adjusted to the appropriate position, they form linear support for the wall panel assembly, and the wall panel assembly is lifted to a generally flat position as a whole.

[0051] The beneficial effects brought by the above technical solution are as follows:

[0052] 1) It can effectively improve product deformation and reduce unpredictable risks during riveting;

[0053] 2) After the product is lifted to a basically flat state, the risk of the equipment operator during operation can be reduced, and the equipment can be prevented from colliding when the product is significantly deformed.

Claims

1. A shape-preserving support structure for fixing products of a flexible pallet system of drilling and riveting equipment, including a frame of a flexible pallet system, characterized in that: The shape-preserving support structure also includes at least two groups of adjustable single-arm support frame groups, each group of adjustable single-arm support frame groups is arranged on two long sides (1) of the frame along the length direction of the frame; during the drilling and riveting process, the wall panel skin maintains its proper curvature with the cooperation of each group of adjustable single-arm support frame groups.

2. The shape-preserving support structure for fixing products of a flexible pallet system of drilling and riveting equipment according to claim 1 is characterized in that: Each group of adjustable single-arm support frames is formed in pairs, staggered on the left and right long sides (1), or arranged on the two long sides (1) of the frame with adjustable support points according to the deformation state of the wall panel.

3. The shape-preserving support structure for fixing products of a flexible pallet system of drilling and riveting equipment according to claim 1 or 2, characterized in that: Each set of adjustable single-arm support frame groups includes a buffer shape-keeping component group, an adjustment support component group and a sliding mounting component group. The buffer shape-keeping component group is detachably arranged at the free end of the adjustment support component group, and the adjustment support component group is movably arranged on the long side (1) of the frame along the length direction of the frame through the sliding mounting component group.

4. The shape-preserving support structure for fixing products of a flexible pallet system of drilling and riveting equipment according to claim 3 is characterized by: The buffer shape-keeping component group comprises a nylon shape-keeping block (2) and a detachable fixing installation mechanism, and the nylon shape-keeping block (2) is arranged at the free end of the adjustment support component group through the detachable fixing installation mechanism.

5. The shape-preserving support structure for fixing products of a flexible pallet system of drilling and riveting equipment according to claim 4 is characterized in that: The detachable fixing installation mechanism is a connecting bolt pair (3) and a fixing installation hole arranged on the free end of the nylon conformal block and the adjusting support member group, and the nylon conformal block (2) is detachably arranged at the free end of the adjusting support member group through the connecting bolt pair (3) in cooperation with the fixing installation hole; or the detachable fixing installation mechanism is a mushroom connecting head and a mushroom-shaped clamping groove, and the mushroom connecting head is arranged at the installation end of the nylon conformal block (2), and the mushroom-shaped clamping groove is arranged at the free end of the adjusting support member group, and the nylon conformal block (2) is detachably arranged at the free end of the adjusting support member group through cooperation between the mushroom connecting head and the mushroom-shaped clamping groove.

6. The shape-preserving support structure for fixing products of a flexible pallet system of drilling and riveting equipment according to claim 5 is characterized in that: The adjustable support component group comprises a support arm (4), an arm base (5) and an adjustable fastener group. Adjustment mechanisms are respectively arranged on the support arm (4) and the arm base (5). The support arm (4) is arranged on the arm base (5) with an adjustable inclination angle in cooperation with the adjustable fastener group through the adjustment mechanism. The arm base (5) is installed on the sliding installation component group. The nylon conformal block (2) is detachably installed on the top end of the support arm (4) in cooperation with the detachable fixed installation mechanism.

7. The shape-preserving support structure for fixing products of a flexible pallet system of drilling and riveting equipment according to claim 6 is characterized by: The adjustment mechanism is a strip-shaped installation adjustment hole (6) respectively arranged on the support arm (4) and the arm base (5); a mounting screw hole is arranged at the fixed end of the support arm (4); and a group of strip-shaped installation adjustment holes (6) are arranged on the support arm (4) along the length direction; two groups of strip-shaped installation adjustment holes (6) extending along the length direction are arranged in parallel on the arm base (5); the adjustment fastener group includes two groups of handle nuts (7) and two sets of bolts; the support arm (4) is arranged on the arm base (5) with an adjustable inclination angle through the mounting screw holes and the strip-shaped installation adjustment holes (6) in cooperation with the two groups of handle nuts (7) and the two sets of bolts.

8. The shape-preserving support structure for fixing products of a flexible pallet system of drilling and riveting equipment according to claim 7 is characterized in that: The sliding mounting assembly comprises a slide rail connection block (8) and a single-point slide rail protection support rod (9), the arm support base (5) is mounted on the slide rail connection block (8), and the slide rail connection block (8) is movably arranged on the long side (1) of the frame along the length direction of the frame in cooperation with the single-point slide rail protection support rod (9).

9. The shape-preserving support structure for fixing products of a flexible pallet system of drilling and riveting equipment according to claim 8, characterized in that: The conformal support structure also includes a plurality of auxiliary conformal brackets. A flexible cardboard assembly (10) is arranged on the frame, and at least two sets of auxiliary conformal brackets are arranged on both sides of each set of flexible cardboard assembly (10).

10. The shape-preserving support structure for fixing products of a flexible pallet system of drilling and riveting equipment according to claim 9, characterized in that: Each set of auxiliary conformal brackets comprises an L-shaped conformal mounting frame (11) and a horizontal extension rod (12). A telescopic slot is provided on the L-shaped conformal mounting frame (11). The horizontal extension rod (12) is arranged in the telescopic slot in a horizontally telescopic manner. The L-shaped conformal mounting frame (11) is fixedly mounted on the flexible card assembly (10) through its vertical edge.

Images