Horizontal pushing assembly device and method for large-size flexible thin-walled structure in vertical state

Abstract

The present invention provides a device and method for horizontally pushing and assembling a large-sized flexible thin-walled structure in a vertical state, wherein the device includes a jig, a movable chassis, a supporting platform and a laser measurement system; the jig is a melon-shaped opening structure with three legs, the legs are ball-head structures, and there are large reduction ratio lifting mechanisms on the jig legs to achieve the lifting and lowering of the overall structure and the adjustment of the pitch of the product. The present invention adopts a horizontal push-installation method, assisted by a local adjustment structure and a laser measurement system, and transforms the traditional horizontal assembly and then the top-down lifting and packaging method into a horizontal push-installation method in a vertical state. After adopting this method, ordinary factories can assemble large-sized flexible thin-walled structures. By adopting a linear moving module, the posture adjustment of the external product is more accurate and reliable, and the laser measurement system provides feedback on the posture adjustment to form a semi-closed loop control, thereby making the assembly process safer and more reliable, with higher precision, and better realizing the external packaging of the internal products.

Description

Technical Field

[0001] The present invention relates to the field of assembly devices and methods, and in particular to a horizontally advancing assembly device and method for a large-size flexible thin-wall structure in a vertical state. Background Art

[0002] With the development of science and technology, the external dimensions and loads of products have increased. In the packaging and assembly process of large products, the external packaging structure is large in size and has low rigidity due to the large internal products. The traditional packaging method is to dock in a horizontal state and then flip it to a vertical state, and then package it with the internal products from top to bottom through hoisting. This method has extremely strict requirements on the height of the factory building and cannot be widely used. In addition, it is very easy to damage the internal products during the packaging process. In order to improve the assembly efficiency of large-sized flexible thin-walled structures, a set of high-precision assembly methods is urgently needed, which has simple assembly operations, high adjustment accuracy, and reliable docking. Summary of the invention

[0003] The purpose of the present invention is to provide a device and method for horizontally pushing and assembling a large-sized flexible thin-walled structure in a vertical state, which has simple assembly operation, high adjustment accuracy and reliable docking.

[0004] In order to achieve the above technical effects, the technical solution of the present invention is: to provide a horizontal pushing assembly device of a large-sized flexible thin-walled structure in a vertical state, including a jig, a movable chassis, a supporting platform and a laser measurement system;

[0005] The jig is a melon-shaped opening structure, connected to a large-sized flexible thin-walled structure product, and the lifting and flipping functions of the product are realized through the hanging points on the jig; the jig has three legs, the legs are ball-head structures, and there are large reduction ratio lifting mechanisms on the jig legs to realize the lifting of the overall structure and the adjustment of the pitch of the product;

[0006] The movable chassis is a C-shaped opening structure, which is used to realize the wide range of product position movement. There are three two-dimensional linear slides on the movable chassis to realize the posture adjustment of the product plane. The two-dimensional linear slide has a ball and socket structure, which is connected with the ball head of the frame support leg. Two flat positioning pins are left in the middle of the chassis;

[0007] The support platform has two docking holes for docking with the positioning pins on the chassis. The measuring system is installed on the upper part of the positioning holes of the support platform to measure the distance between the external product and the internal product. The two-dimensional linear slide and the lifting mechanism are adjusted by the six-degree-of-freedom posture of the thin-walled structure with a ball joint.

[0008] The laser measurement system includes a vertical laser measuring instrument and a horizontal laser measuring instrument; the vertical laser measuring instrument measures the height of the thin-walled structure and the platform in the closed space. When the position of the external product changes, the height also changes. The limit height is set according to the safety distance between the external and internal products. When the height is less than the design value, the distance between the external product and the internal product is too small. The horizontal limit distance is set in the same way. When it is less than the design value, the distance between the external product and the internal product is too small.

[0009] Furthermore, the three two-dimensional slides are evenly distributed on the chassis to achieve the function of supporting and adjusting the exterior products, and each two-dimensional slide has three guide casters evenly distributed on the bottom to achieve the function of overall movement.

[0010] Furthermore, the two-dimensional linear slide includes an adjusting screw assembly, a linear moving assembly, a table body, and a ball socket; the adjusting screw includes a bearing seat, a ball screw, a handwheel, and a screw nut; the linear moving assembly includes a guide rail slider, a guide rail lock, a mounting plate, a ruler, and an indicator arrow; two sets of screw assemblies and linear moving assemblies are cross-connected through a connecting plate, and movement to any position in the plane is achieved through the ruler and guide rail lock; a ball socket is connected to the top of the slide and is connected to the ball head on the frame support leg to form a ball joint structure to achieve rotation.

[0011] Furthermore, the guide caster includes a turntable, a handle, and a universal caster assembly; the universal caster assembly includes a caster, a brake pad, a direction lock, a support frame, and a bearing. The direction lock realizes the function of converting the universal caster into a fixed caster. The support frame makes the rotation axes of the caster and the bearing overlap on an axis. When the handle is used to adjust the direction of the caster, the rotation range is minimized, which is convenient for adjustment.

[0012] Furthermore, the adjusting flap assembly includes a flap, an adjusting screw, a nut, and a mounting screw; the adjusting flap adopts a vertical waist-shaped hole structure, the horizontal waist-shaped hole is used to adapt to the lateral position of the mounting hole on the product, and the vertical waist-shaped hole adapts to the vertical position of the mounting hole on the product; rotating the adjusting screw clockwise to realize the pulling function; rotating the nut counterclockwise to realize the pushing function.

[0013] Another technical solution of the present invention provides a method for horizontally pushing an assembly device in a vertical state using the above-mentioned large-size flexible thin-walled structure, characterized in that it includes the following steps:

[0014] S1. The two large-sized thin-walled structural products on the left and right are connected to the jigs in a horizontal state. After turning to a vertical state, the ball heads of the jig legs are connected to the ball sockets on the movable chassis.

[0015] S2, push along the designated route through the guiding action of the guide wheel, and dock with the supporting platform through the pin hole;

[0016] S3. After adjusting half of the product into place through the six-degree-of-freedom adjustment mechanism, adjust the posture of the other half of the product. In order to adapt to the characteristics of the flexible thin-walled structure of the product, the adjustment flaps are evenly distributed around the joint surface of the product, and the threaded structure is used to realize the functions of pushing and pulling, and the posture of the product is partially adjusted to ensure the accuracy and efficiency of the assembly process.

[0017] S4. The distance between the thin-walled structure and the internal product during the packaging process is measured by a two-dimensional laser measurement system installed on the support platform to ensure that there is sufficient safety clearance between the thin-walled structure and the internal product during the posture adjustment process;

[0018] S5. After the product is assembled, it is lowered to the supporting platform by six elevators at the same time. Finally, the connection between the jig and the product is removed, and the jig is withdrawn to complete the assembly.

[0019] The horizontal push assembly device and method for large-size flexible thin-walled structures in a vertical state provided by the present invention adopts a horizontal push assembly method, assisted by a local adjustment structure and a laser measurement system, and transforms the traditional horizontal assembly and packaging method from top to bottom into a horizontal push assembly method in a vertical state. After adopting this method, ordinary factories can assemble large-size flexible thin-walled structures. The high-rigidity frame increases the rigidity of the flexible thin-walled products, and the linear moving module is adopted, so that the posture adjustment of the external product is more accurate and reliable. The laser measurement system performs posture adjustment to form a semi-closed loop control, thereby making the assembly process safer and more reliable, with higher precision, and better realizing the external packaging of the internal products. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The invention will be further described below in conjunction with the accompanying drawings:

[0021] Figure 1 It is a structural schematic diagram of a device and method for horizontally pushing and assembling a large-sized flexible thin-walled structure in a vertical state according to the present invention;

[0022] Figure 2 It is a schematic diagram of the mechanism of a device and method for horizontally pushing and assembling a large-sized flexible thin-walled structure in a vertical state according to the present invention;

[0023] Figure 3 It is a structural schematic diagram of a movable chassis used in a device and method for horizontally pushing and assembling a large-sized flexible thin-walled structure in a vertical state according to the present invention;

[0024] Figure 4 It is a structural schematic diagram of a two-dimensional slide platform of a device and method for horizontally pushing and assembling a large-sized flexible thin-wall structure in a vertical state according to the present invention;

[0025] Figure 5It is a structural schematic diagram of a guide caster of a device and method for horizontally pushing and assembling a large-sized flexible thin-walled structure in a vertical state according to the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the adjustable flap of a device and method for horizontally pushing and assembling a large-sized flexible thin-walled structure in a vertical state according to the present invention;

[0027] Figure 7 It is a structural schematic diagram of a measuring system of a device and method for horizontally pushing and assembling a large-sized flexible thin-walled structure in a vertical state according to the present invention;

[0028] Figure 8 It is a schematic diagram of a measuring system for a device and method for horizontally pushing and assembling a large-sized flexible thin-walled structure in a vertical state according to the present invention. DETAILED DESCRIPTION

[0029] The following is a further detailed description of the device and method for horizontally pushing and assembling a large-sized flexible thin-walled structure in a vertical state proposed by the present invention in combination with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent according to the following description and claims. It should be noted that the accompanying drawings are in a very simplified form and use non-precise ratios, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0030] like Figure 1 As shown, the present invention relates to a device and method for horizontally pushing and assembling a large-sized flexible thin-walled structure in a vertical state. The invention relates to a device for horizontally pushing and assembling a large-sized flexible thin-walled structure in a vertical state, which is characterized by comprising a frame 2, a movable chassis 7, a supporting platform 8, and a laser measurement system 4.

[0031] The frame 2 is a melon-shaped opening structure, connected to the large-sized flexible thin-walled structure product 1, and the lifting and flipping functions of the product are realized through the hanging point 3 on the frame 2. The frame has three legs 5, which are ball-head structures, and there are lifting mechanisms with a large reduction ratio on the frame legs to realize the lifting and lowering of the overall structure and the adjustment of the pitch of the product; the movable chassis 7 is a C-shaped opening structure, and there are three two-dimensional linear slides 6 on the chassis to realize the posture adjustment in the product plane. The slide has a ball socket 21 structure, which docks with the ball head of the frame leg 5, and two flat positioning pins are left in the middle of the chassis 7; there are two docking holes on the support platform, which dock with the positioning pins on the chassis, and the laser measurement system 4 is installed on the upper part of the positioning hole of the support platform to realize the measurement of the distance between the external product and the internal product. The two-dimensional slide and the lifting mechanism realize the adjustment of the spatial six-degree-of-freedom posture of the thin-walled structure through the ball joint.

[0032] like Figure 3As shown, the movable chassis 7 includes a two-dimensional slide 6, guide casters 12, and a main body 13. Three two-dimensional slides 6 are evenly distributed above the chassis to achieve the function of supporting and adjusting the exterior products; three guide casters are evenly distributed at the bottom to achieve the function of overall movement.

[0033] like Figure 4 As shown, the two-dimensional slide includes an adjusting screw assembly, a linear moving assembly, a platform body 20, and a ball socket 21; the adjusting screw includes a bearing seat containing a bearing 14, a ball screw 18, a hand wheel 19, and a screw nut; the linear moving assembly includes a guide rail slider 15, a guide rail lock 16, a mounting plate 22, a ruler 17, and an indicator arrow 24; the two sets of screw assemblies and the linear moving assembly are cross-connected by a connecting plate 23, and movement to any position in the plane is achieved through the ruler 17 and the guide rail lock 16; the ball socket 21 is connected to the top of the slide and is connected to the ball head on the frame leg 5 to form a ball joint structure to achieve rotation.

[0034] like Figure 5 As shown, the guide caster 12 includes a turntable 25, a handle 26, and a universal caster assembly; the universal caster assembly includes a caster 28, a brake pad 29, a direction lock 27, a support frame 30, and a bearing. The direction lock 27 realizes the function of converting the universal caster into a fixed caster. The support frame 30 makes the rotation axes of the caster and the bearing coincide on an axis. When the handle 26 is used to adjust the direction of the caster, the rotation range is minimized, which is convenient for adjustment.

[0035] like Figure 6 As shown, the adjustment flap assembly includes a flap 33, an adjustment screw 32, a nut 31, and a mounting screw 34; the adjustment flap 33 adopts a waist-shaped hole structure in the vertical direction, the waist-shaped hole in the horizontal direction is used to adapt to the horizontal position of the mounting hole on the product, and the waist-shaped hole in the vertical direction is adapted to the vertical position of the mounting hole on the product. Rotate the adjustment screw 32 clockwise to achieve the pulling function; rotate the nut 31 counterclockwise to achieve the pushing function.

[0036] Figure 7 For the laser measurement system distribution, Figure 8 It is a schematic diagram of the laser measurement system, including a vertical laser measuring instrument 35 and a horizontal laser measuring instrument 36; the laser measuring instrument measures the height of the thin-walled structure and the platform in the closed space. When the posture of the external product changes, the height also changes. The limit height is set according to the safety distance between the external and internal products. When the height is less than the design value, the distance between the external product and the internal product is too small. Taking the vertical distance measurement as an example, during the pitching process of the product, the initial distance is D1D3, and the distance becomes D2D3 after adjustment, D1D3>D2D3. The laser measuring instrument reflects the degree of posture adjustment of the external product by measuring the OA and OB distances, and sets the safety value according to the minimum safety distance of D2D3. When it is less than the safety value, the operation stops and returns.

[0037] A method for vertically assembling large-scale flexible thin-walled structures, such as Figure 2 The left half of the product shown on the left is used as the adjustment reference. Figure 2 The right side shows the packaging of the left and right products. The specific steps are as follows:

[0038] Two large-sized thin-walled structural products 1 on the left and right are respectively connected to the frame 2 in a horizontal state. After turning to a vertical state, the ball heads of the frame legs 5 are connected to the ball sockets 21 on the movable chassis;

[0039] Second, the guide wheel 12 is used to guide the vehicle along the designated route and dock with the support platform 8 through the pin hole;

[0040] Third, after adjusting half of the product into place through the six-degree-of-freedom adjustment mechanism, the posture of the other half of the product 1 is adjusted; in order to adapt to the characteristics of the flexible thin-walled structure of the product, the adjustment flaps 9 are evenly distributed around the product joint surface, and the threaded structure is used to realize the functions of pushing and pulling, so as to make local adjustments to the posture of the product and ensure that the assembly process is accurate and efficient.

[0041] Fourth, a two-dimensional laser measurement system 4 is installed on the supporting platform 8 to measure the distance between the thin-walled structure and the internal product during the packaging process, ensuring that there is enough safety clearance between the thin-walled structure and the internal product during the posture adjustment process.

[0042] After the five products are assembled, they are lowered to the support platform simultaneously by six elevators, and finally the connection between the frame 2 and the product 1 is removed, and the frame 2 is withdrawn to complete the assembly.

[0043] The technical solution provided by the present invention has been verified by experiments and achieved good results.

[0044] The contents not described in detail in this specification belong to the prior art known to those skilled in the art. It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A horizontal assembly device for a large-size flexible thin-walled structure in a vertical state, characterized in that: It includes a jig, a movable chassis, a supporting platform and a laser measuring system; The jig is a melon-shaped opening structure, connected to a large-sized flexible thin-walled structure product, and the lifting and flipping functions of the product are realized through the hanging points on the jig; the jig has three legs, the legs are ball-head structures, and there are large reduction ratio lifting mechanisms on the jig legs to realize the lifting of the overall structure and the adjustment of the pitch of the product; The movable chassis is a C-shaped opening structure, which is used to realize the wide range of product position movement. There are three two-dimensional linear slides on the movable chassis to realize the posture adjustment of the product plane. The two-dimensional linear slide has a ball and socket structure, which is connected with the ball head of the frame support leg. Two flat positioning pins are left in the middle of the chassis; The support platform has two docking holes, which are docked with the positioning pins on the chassis. The measurement system is installed on the upper part of the positioning holes of the support platform to measure the distance between the external product and the internal product; the two-dimensional linear slide and the lifting mechanism realize the adjustment of the spatial six-degree-of-freedom posture of the thin-walled structure through the ball joint; The laser measurement system includes a vertical laser measuring instrument and a horizontal laser measuring instrument; the vertical laser measuring instrument measures the height of the thin-wall structure and the platform in the closed space. When the position of the external product changes, the height also changes. The limit height is set according to the safety distance between the external and internal products. When the height measured by the vertical laser measuring instrument is less than the design value, the distance between the external product and the internal product is too small; the horizontal limit distance is set in the same way. When the distance measured by the horizontal laser measuring instrument is less than the design value, the distance between the external product and the internal product is too small.

2. The horizontal pushing assembly device for a large-size flexible thin-walled structure in a vertical state as claimed in claim 1, characterized in that: The three two-dimensional linear slides are evenly distributed on the chassis to achieve the function of supporting and adjusting the exterior products. Each two-dimensional linear slide has three guide casters evenly distributed on the bottom to achieve the function of overall movement.

3. The horizontal pushing assembly device for a large-size flexible thin-walled structure in a vertical state as claimed in claim 2, characterized in that: The two-dimensional linear slide comprises an adjusting screw assembly, a linear moving assembly, a table body, and a ball socket; the adjusting screw assembly comprises a bearing seat, a ball screw, a handwheel, and a screw nut; the linear moving assembly comprises a guide rail slider, a guide rail lock, a mounting plate, a ruler, and an indicator arrow; two sets of adjusting screw assemblies and linear moving assemblies are cross-connected through a connecting plate, and movement to any position in the plane is achieved through the ruler and the guide rail lock; a ball socket is connected above the slide and is connected to the ball head on the frame support leg to form a ball joint structure to achieve rotation.

4. The horizontal pushing assembly device for a large-sized flexible thin-walled structure in a vertical state as claimed in claim 3, characterized in that: The guide caster includes a turntable, a handle, and a universal caster assembly; the universal caster assembly includes a caster, a brake pad, a direction lock, a support frame, and a bearing. The direction lock realizes the function of converting the universal caster into a fixed caster. The support frame makes the rotation axes of the caster and the bearing overlap on an axis. When the handle is used to adjust the direction of the caster, the rotation range is minimized, which is convenient for adjustment.

5. The horizontal pushing assembly device for a large-sized flexible thin-walled structure in a vertical state as claimed in claim 2, characterized in that: The adjusting flap assembly includes a flap, an adjusting screw, a nut, and a mounting screw; the adjusting flap assembly adopts a waist-shaped hole structure in a vertical direction, the waist-shaped hole in a horizontal direction is used to adapt to the horizontal position of the mounting hole on the product, and the waist-shaped hole in a vertical direction is used to adapt to the vertical position of the mounting hole on the product; Rotate the adjusting screw clockwise to achieve the pulling function; rotate the nut counterclockwise to achieve the pushing function.

6. A method for horizontally pushing and assembling a device in a vertical state using a large-size flexible thin-walled structure as claimed in claim 5, characterized in that: The steps include: S1. The two large-sized thin-walled structural products on the left and right are connected to the jigs in a horizontal state. After turning to a vertical state, the ball heads of the jig legs are connected to the ball sockets on the movable chassis. S2, push along the designated route through the guiding action of the guide casters, and dock with the supporting platform through the docking holes; S3. After adjusting half of the product into place through the six-degree-of-freedom adjustment mechanism, adjust the posture of the other half of the product. In order to adapt to the characteristics of the flexible thin-walled structure of the product, the adjustment flaps are evenly distributed around the joint surface of the product, and the threaded structure is used to realize the functions of pushing and pulling, and the posture of the product is partially adjusted to ensure the accuracy and efficiency of the assembly process. S4. The distance between the thin-walled structure and the internal product during the packaging process is measured by a laser measurement system installed on the support platform to ensure that there is sufficient safety clearance between the thin-walled structure and the internal product during the posture adjustment process; S5. After the product is assembled, it is lowered to the supporting platform simultaneously through six large reduction ratio lifting mechanisms. Finally, the connection between the jig and the product is removed, and the jig is withdrawn to complete the assembly.

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