Numerical control attitude adjusting and positioning device and method for wing wallboard

Abstract

The invention belongs to the technical field of aeronautical manufacturing, and particularly relates to a wing wallboard numerical control posture adjusting and positioning device and method.The positioning device is composed of four parts including a four-axis numerical control posture adjusting mechanism, a shape maintaining plate, an adapter frame and a suction cup assembly; before the wing wall plates are separated from the wall plate assembly fixture, the shape maintaining plates are connected with the wing wall plates, and each wing wall plate is provided with two shape maintaining plates; the wall plate provided with the shape-preserving plate is hoisted to a wing general assembly fixture, the wing general assembly fixture is connected with the transfer frame through bolt holes in the shape-preserving plate, and the suction cups are fixed to the wing wall plate, so that the wing wall plate is stably connected with the shape-preserving frame, and deflection and movement do not occur in the moving process; the adapter frame is arranged on the four-axis numerical control attitude adjusting mechanism, and the spatial position of the adapter frame is adjusted through the four-axis numerical control attitude adjusting mechanism, so that the attitude of the wing wallboard is adjusted. The four-axis numerical control posture adjusting mechanism can achieve movement in four directions, the movement is transmitted to the wall plate through the shape preserving frame and the shape preserving plate, and adjustment of the posture of the wall plate is achieved. The wing assembly fixture is a part of a wing assembly fixture, can realize quick and accurate attitude adjustment and positioning of wing wallboards, and improves the wing appearance assembly accuracy.

Description

Technical Field

[0001] The invention belongs to the technical field of aviation manufacturing, and relates to a numerically controlled attitude adjustment and positioning device and method for a wing panel. Background Art

[0002] Aircraft wing components are generally composed of upper wall panels, lower wall panels, wing beams, wing ribs and other components. These components are assembled together through rivets, bolts and other connectors to form wing components. When the wings are assembled, the assembly position accuracy of each component is required to be high. Under normal circumstances, assembly fixtures are required to achieve the positioning of each assembly component. The assembly and positioning of the upper and lower wall panels are key elements in the assembly of wings. The conventional wall panel positioning method is to use manual mechanical devices such as external clamps and tensioners to achieve accurate positioning and surface of the wall panels. This positioning method cannot adjust the posture of the wall panels, has low positioning accuracy, and the clamps need to be opened or closed manually during use, which is labor-intensive. Summary of the invention

[0003] Purpose of the invention: The present invention overcomes the problems of the traditional positioning method that the wing wall panel needs to be forced to be positioned according to the shape of the clamp and the tensioner, the assembly stress is large, and the positioning accuracy is low, so as to achieve the purpose of accurate and rapid posture adjustment and positioning of the wing wall panel during the assembly process.

[0004] Technical solution: In order to solve the problem of attitude adjustment and positioning of wing panels during the assembly of wing components, a CNC attitude adjustment and positioning device for wing panels was invented. The device is mainly composed of four parts: a 4-axis CNC attitude adjustment mechanism, a shape-keeping plate, an adapter frame, and a suction cup assembly. It is part of the wing assembly jig.

[0005] Before the wing panel is separated from the panel assembly jig, the retaining plate is connected to the wing panel, and two retaining plates are installed on each wing panel;

[0006] The panel with the conformal plate is hoisted to the wing assembly jig, connected to the adapter through the bolt holes on the conformal plate, and the suction cup is fixed to the wing panel to ensure that the wing panel is firmly connected to the conformal frame without swaying or moving during the movement;

[0007] The adapter frame is arranged on a 4-axis numerical control attitude adjustment mechanism, and the spatial position of the adapter frame is adjusted by the 4-axis numerical control attitude adjustment mechanism to achieve adjustment of the wing panel posture.

[0008] Furthermore, the 4-axis drive mechanism can realize translation in the X, Y, and Z directions and rotation around the Z1 axis. Combined with the laser measurement data, after calculation analysis and path planning, translation in the X, Y, and Z directions and rotation around the Z1 axis are performed, and the motion is transmitted to the wing panel through the conformal frame and the adapter plate to realize the adjustment of the position of the wing panel.

[0009] Furthermore, when adjusting the position and attitude of the wing panel, the 4-axis CNC attitude adjustment mechanism analyzes the difference between the actual position and attitude of the wing panel and the theoretical position and attitude based on the measurement data of the laser tracker, and determines the translation distances in the X, Y, and Z directions and the rotation angle around the Z1 axis of the CNC attitude adjustment mechanism on the basis of analysis and calculation, and moves to the theoretical position using the optimal path. When the wing panel interferes with other components, the CNC attitude adjustment mechanism stops moving under the action of the force sensor. After the interference is eliminated, the steps of measurement, analysis, and movement are repeated until the panel moves to the theoretical position.

[0010] Furthermore, when the profile-maintaining plate is connected to the wing wall panel, the connection holes utilize the screw holes in the overlapped area of ​​the wing wall panel.

[0011] Furthermore, after the wing wall panel is assembled, the wall panel is connected to the mold retaining plate before it is separated from the wall panel assembly jig. Its function is to prevent the wall panel from deformation after it is removed from the jig and to maintain the accuracy of the wall panel's shape. At the same time, it plays a clamping role, transmitting the movement of the CNC posture adjustment part to the wall panel, thereby realizing the movement of the wall panel.

[0012] Furthermore, the function of the adapter frame is to maintain the accuracy of the overall shape of the wall panel. The adapter frame is a frame-shaped component with strong rigidity. The front end face of the adapter frame is connected to the mold retaining plate, and the rear end face is connected to the attitude adjustment frame of the CNC attitude adjustment mechanism, which transmits the movement of the CNC attitude adjustment mechanism to the mold retaining plate, thereby realizing the adjustment of the wall panel posture.

[0013] Furthermore, the suction cup assembly is used to absorb the wall panel onto the adapter frame, and together with the shape-preserving plate, maintains the accuracy of the wall panel's shape and plays a role of auxiliary support.

[0014] Furthermore, the suction cup assembly includes a rubber bowl, a bracket, and a support plate; a plurality of rubber bowls are evenly arranged on the bracket, and the bracket is fixed on the posture adjustment frame of the numerical control posture adjustment mechanism through the support plate.

[0015] Furthermore, the CNC attitude adjustment mechanism includes a guide rail, an attitude adjustment frame, a joint, a motor, and a lead screw. The attitude adjustment frame is arranged on the translation mechanism through a rotating shaft. The attitude adjustment frame can rotate around the axis at a certain angle. The translation mechanism is arranged on the guide rail as a whole, and the horizontal position adjustment is achieved by driving the lead screw through the motor.

[0016] The wing panel numerical control attitude adjustment and positioning device designed as above is used, and the specific use process is as follows:

[0017] ①Fix the profile retaining plate to the product wall plate with process bolts;

[0018] ②Fix the shape-retaining plate and the adapter frame;

[0019] ③Use the suction cup assembly to absorb the product;

[0020] ④ The 4-axis CNC attitude adjustment mechanism analyzes the difference between the actual position and attitude of the wall panel and the theoretical position and attitude according to the measurement data of the laser tracker. On the basis of analysis and calculation, the translation distances in the X, Y, and Z directions and the rotation angle around the Z1 axis of the CNC attitude adjustment mechanism are determined.

[0021] Technical effect: Compared with the prior art, the beneficial effects of the present invention are: the upper and lower wall panels of the wing are accurately and quickly positioned, the labor intensity of workers is reduced, and automatic adjustment of the wall panel position is achieved.

[0022] Compared with the traditional positioning method, the accuracy of the central wing shape of the present invention is improved from ±0.5mm to ±0.27mm, and the wall panel opening and closing time is shortened from 10 minutes to 5 minutes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the front view and the left side view of the overall structure of the present invention;

[0024] Figure 2 is an axonometric view of the adapter frame of the present invention;

[0025] Figure 3 It is a structural axonometric diagram of the shape-retaining plate and the adapter frame of the present invention;

[0026] Figure 4 It is an isometric view of the 4-axis numerical control posture adjustment mechanism of the present invention;

[0027] Figure 5 is a front view of the suction cup assembly of the present invention;

[0028] Figure 6 It is an axonometric view of the posture adjustment frame of the present invention; FIG7 is an axonometric view of the posture adjustment frame of the present invention;

[0029] Among them, 1-4 axis CNC attitude adjustment mechanism, 2-form retaining plate, 3-adapter frame, 4-suction cup assembly, 5-guide rail, 6-attitude adjustment frame, 7-connector, 8-motor, 9-screw, 10-rubber bowl, 11-bracket, 12-angle plate, 13-bolt, 14-nut, 15-gasket. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the present invention is described in detail below in conjunction with the drawings or specific implementation cases of the specification. It should be noted that some (but not all) of the disclosed examples are shown in the drawings. In fact, many different examples can be described and these examples should not be understood as being limited to the examples set forth herein. On the contrary, these examples are described so that the positive effects of the present invention are more reflected, and any parts not detailed in the text are regarded as known techniques or conventional technical means in the art.

[0031] See attached Figure 1 , 2 , an overall structural diagram of the design of an embodiment of the present invention, the product applied by the present invention is the central wing assembly, and its specific structure is: 4-axis CNC attitude adjustment mechanism 1, shape-keeping plate 2, adapter frame 3, suction cup assembly 4, the 4-axis CNC attitude adjustment mechanism 1 is composed of guide rails 5, attitude adjustment frame 6, joint 7, motor 8, lead screw 9; wherein: the 4-axis CNC attitude adjustment mechanism 1 is composed of a mechanism for translation in three directions of X, Y, and Z and a rotation mechanism around the Z1 axis, and is driven by a servo motor; the shape of the shape-keeping plate 2 is manufactured by CNC machining, and the shape is consistent with the shape of the wall panel, the shape-keeping plate is connected and fixed to the adapter frame, and the shape-keeping plate is connected to the product wall panel by process bolts; the adapter frame 3 is an integral welded structure, which is respectively connected to the shape-keeping plate 2 and the attitude adjustment frame 6 of the 4-axis CNC attitude adjustment mechanism 1; the suction cup assembly 4 is composed of a rubber bowl 10, a bracket 11, and an angle plate 12, and the adsorption of the product wall panel is achieved by compressed air. Usage process:

[0032] ①Fix the profile retaining plate to the product wall plate with process bolts;

[0033] ②Fix the shape-retaining plate and the adapter frame;

[0034] ③Use the suction cup assembly to absorb the product;

[0035] ④ The 4-axis CNC attitude adjustment mechanism analyzes the difference between the actual position and attitude of the wall panel and the theoretical position and attitude according to the measurement data of the laser tracker. On the basis of analysis and calculation, the translation distances in the X, Y, and Z directions and the rotation angle around the Z1 axis of the CNC attitude adjustment mechanism are determined.

[0036] The above specific implementation methods or cases are only used to explain the technical solutions of the present invention, and are not intended to limit the present application. Any parts not described in detail are deemed to be conventional technical means or common knowledge in the field. It can be understood by ordinary technicians in this field that: based on the design concept of the present application, the technical solutions recorded in the aforementioned implementation methods should be adaptively modified, or some or all of the technical features therein should be replaced by equivalents. These modifications, equivalent replacements, and adaptively improved technical solutions do not depart from the technical essence of the present invention and should all be covered within the protection scope of the present application.

Claims

1. A wing panel numerical control attitude adjustment and positioning device, characterized in that: It consists of four parts: 4-axis CNC posture adjustment mechanism, shape-keeping plate, adapter frame, and suction cup assembly; Before the wing panel is separated from the panel assembly jig, the retaining plate is connected to the wing panel, and two retaining plates are installed on each wing panel; The panel with the conformal plate is hoisted to the wing assembly jig, connected to the adapter through the bolt holes on the conformal plate, and the suction cup is fixed to the wing panel to ensure that the wing panel is firmly connected to the conformal frame without swaying or moving during the movement; The adapter frame is arranged on a 4-axis numerical control attitude adjustment mechanism, and the spatial position of the adapter frame is adjusted by the 4-axis numerical control attitude adjustment mechanism to achieve adjustment of the wing panel posture.

2. A wing panel numerical control attitude adjustment and positioning device as claimed in claim 1, characterized in that: The 4-axis drive mechanism can realize translation in the X, Y, and Z directions and rotation around the Z1 axis. Combined with laser measurement data, after calculation analysis and path planning, translation in the X, Y, and Z directions and rotation around the Z1 axis are performed. The motion is transmitted to the wing panel through the conformal frame and the adapter plate to adjust the position of the wing panel.

3. A wing panel numerical control attitude adjustment and positioning device as claimed in claim 2, characterized in that: When adjusting the position and attitude of the wing panel, the 4-axis CNC attitude adjustment mechanism analyzes the difference between the actual position and attitude of the wing panel and the theoretical position and attitude based on the measurement data of the laser tracker. On the basis of analysis and calculation, the translation distances in the X, Y, and Z directions and the rotation angle around the Z1 axis of the CNC attitude adjustment mechanism are determined, and the optimal path is adopted to move to the theoretical position. When the wing panel interferes with other components, the CNC attitude adjustment mechanism stops moving under the action of the force sensor. After the interference is eliminated, the measurement, analysis, and movement steps are repeated until the panel moves to the theoretical position.

4. A wing panel numerical control attitude adjustment and positioning device as claimed in claim 1, characterized in that: When the profile plate is connected to the wing wall panel, the connection holes use the screw holes in the overlap area of ​​the wing wall panel.

5. A wing panel numerical control attitude adjustment and positioning device as claimed in claim 1, characterized in that: After the wing panel assembly is completed, the panel is connected to the retaining plate before it is separated from the panel assembly jig to prevent the panel from deformation after it is removed from the jig and to maintain the accuracy of the panel's shape; at the same time, it plays a clamping role, transmitting the movement of the CNC posture adjustment part to the panel to realize the movement of the panel.

6. A wing panel numerical control attitude adjustment and positioning device as claimed in claim 1, characterized in that: The adapter frame is used to maintain the accuracy of the overall shape of the wall panel. The adapter frame is a frame-shaped component with strong rigidity. The front end face of the adapter frame is connected to the shape-maintaining plate, and the rear end face is connected to the attitude adjustment frame of the CNC attitude adjustment mechanism, which transmits the movement of the CNC attitude adjustment mechanism to the shape-maintaining plate, thereby realizing the adjustment of the wall panel posture.

7. A wing panel numerical control attitude adjustment and positioning device as claimed in claim 1, characterized in that: The function of the suction cup assembly is to absorb the wall panel onto the adapter frame, and together with the shape-keeping plate, it maintains the accuracy of the wall panel's shape and plays an auxiliary supporting role.

8. A wing panel numerical control attitude adjustment and positioning device as claimed in claim 7, characterized in that: The suction cup assembly comprises a rubber cup, a bracket and a support plate; a plurality of rubber cups are evenly arranged on the bracket, and the bracket is fixed on the posture adjustment frame of the numerical control posture adjustment mechanism through the support plate.

9. A wing panel numerical control attitude adjustment and positioning device as claimed in claim 1, characterized in that: The CNC attitude adjustment mechanism includes a guide rail, an attitude adjustment frame, a joint, a motor, and a lead screw. The attitude adjustment frame is arranged on the translation mechanism through a rotating shaft. The attitude adjustment frame can rotate around the axis at a certain angle. The translation mechanism is arranged on the guide rail as a whole, and the horizontal position adjustment is achieved by driving the lead screw through the motor.

10. A method for adjusting the attitude of a wing panel using the wing panel numerical control attitude adjustment and positioning device according to claims 1 to 9, characterized in that: The specific process is: ①Fix the profile retaining plate to the product wall plate with process bolts; ②Fix the shape-retaining plate and the adapter frame; ③Use the suction cup assembly to absorb the product; ④ The 4-axis CNC attitude adjustment mechanism analyzes the difference between the actual position and attitude of the wall panel and the theoretical position and attitude according to the measurement data of the laser tracker. On the basis of analysis and calculation, the translation distances in the X, Y, and Z directions and the rotation angle around the Z1 axis of the CNC attitude adjustment mechanism are determined.

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