阅读说明：本技术 一种柔性大跨度弱刚度轻质部件翻转装置及使用方法 (Flexible large-span weak-rigidity light component overturning device and using method ) 是由 郝巨 杜柯 田天 蔡继钊 任焕 于 2021-07-27 设计创作，主要内容包括：一种柔性大跨度弱刚度轻质部件翻转装置及使用方法,包括一组对称布置的翻转台、两根钢丝绳、多个变形补偿夹具、强力紧线器、拉力计、电气控制系统,一组对称布置的翻转台固定在地面上,两根钢丝绳一端依次与拉力计、强力紧线器串联后固定在翻转台侧面,另一端与对称布置的另一翻转台固定连接,两根钢丝绳平行布置,其间距超过产品的最大宽度,多个变形补偿夹具分别布置在两根钢丝绳上,一端与钢丝绳连接,另一端与产品上的对应连接点连接,电气控制系统控制一组翻转台同步带动产品翻转。(The utility model provides a flexible large-span weak rigidity light part turning device and application method, including a set of symmetrical arrangement's roll-over table, two wire rope, a plurality of deformation compensation anchor clamps, powerful turn-buckle, the tensiometer, electrical control system, a set of symmetrical arrangement's roll-over table is fixed subaerial, two wire rope one end in proper order with the tensiometer, fix in the roll-over table side after powerful turn-buckle is established ties, the other end and another roll-over table fixed connection of symmetrical arrangement, two wire rope parallel arrangement, its interval exceeds the maximum width of product, a plurality of deformation compensation anchor clamps are arranged respectively on two wire rope, one end is connected with wire rope, the other end is connected with the corresponding tie point on the product, electrical control system control a set of roll-over table drives the product upset in step.)

1. The utility model provides a weak rigidity light part turning device of flexible large-span, its characterized in that includes a set of symmetrical arrangement's roll-over table, two wire rope, a plurality of deformation compensation anchor clamps, powerful turn-buckle, the tensiometer, electrical control system, a set of symmetrical arrangement's roll-over table is fixed subaerial, two wire rope one end in proper order with the tensiometer, fix in roll-over table side after powerful turn-buckle is established ties, another roll-over table fixed connection of the other end and symmetrical arrangement, two wire rope parallel arrangement, its interval exceeds the maximum width of product, a plurality of deformation compensation anchor clamps are arranged respectively on two wire rope, one end is connected with wire rope, the other end is connected with the corresponding tie point on the product, a set of roll-over table of electrical control system control drives the product upset in step.

2. The turnover device of the flexible large-span weak-rigidity light component as claimed in claim 1, wherein the turnover table comprises a main frame, a flange shaft, a speed-reducing servo motor, a thrust block, a coupler and a rotating beam, the main frame is of a frame structure, the main frame is fixed on the ground, the speed-reducing servo motor is installed above the main frame, an output shaft of the speed-reducing servo motor is fixedly connected with the flange shaft through the coupler, the flange shaft penetrates through the thrust block and then is fixedly connected with the rotating beam, the thrust block is fixedly connected above the main frame, and two connecting joints are arranged on the rotating beam.

3. The turnover device for the flexible large-span weak-rigidity light component as claimed in claim 2, wherein the thrust block comprises two thrust bearings and a bearing mounting block, the bearing mounting block is provided with a cylindrical cavity matched with the thrust bearings and a through hole, the through hole is coaxial with the cylindrical cavity, the two thrust bearings are symmetrically mounted in the cylindrical cavity, and the two thrust bearings are clamped on two sides of a limiting step arranged on the flange shaft.

4. The turnover device of a flexible large-span weak-stiffness light component as claimed in claim 1, wherein the deformation compensation fixture comprises a product connection lug, a spring, a small tightener and a wire rope clamp, the wire rope clamp is of a U-shaped structure, one side of an opening of the U-shaped structure clamps the wire rope in the U-shaped structure through a bolt, a joint connected with one end of the small tightener is arranged at the lower end of the U-shaped structure, the other end of the small tightener is connected with one end of the spring, the other end of the spring is connected with the joint arranged on the product connection lug, and the product connection lug is connected with a corresponding product connection point.

5. A use method of a flexible large-span weak-rigidity light component turnover device is characterized by comprising the following steps:

5-1, firstly, obtaining the minimum pretightening force required by the steel wire rope by using an experimental method, wherein the experimental method comprises the following steps: fixing one end of a steel wire rope, connecting the other end of the steel wire rope with a tension meter and a strong wire grip in series, fixing the other end of the strong wire grip, then hanging a heavy object with the same weight as a product at the middle position of the steel wire rope, adjusting the strong wire grip, measuring the maximum downward deflection of the steel wire rope, and recording the tension value of the tension meter connected with the steel wire rope in series at the moment when the maximum downward deflection is smaller than the maximum allowable stretching amount of a spring of a deformation compensation clamp, wherein the tension value is the minimum pre-tightening force of the steel wire rope;

5-2, when clamping a product, tensioning the steel wire rope to a required pre-tightening state by using a powerful tightener according to the tension meter reading, namely the tension meter reading is larger than the minimum pre-tightening force, then connecting one end of a steel wire rope clamp of the deformation compensation clamp with the steel wire rope, connecting a product connecting lug at the other end with the product, adjusting the small tightener of the deformation compensation clamp after the connection is finished, tensioning the product between the two steel wire ropes, and finishing the product clamping work;

and 5-3, when the product is turned over, after the clamping work is finished, operating an electrical control system to control servo motors of the two turning tables to drive the coupler, the flange shaft and the rotating beam to turn over synchronously, and turning over the two steel wire ropes, the product, the deformation compensation fixtures and the rotating beam synchronously with the rotating beam as a whole.

Technical Field

The application relates to the technical field of auxiliary tools of airplanes, in particular to a flexible large-span weak-rigidity light component overturning device and a using method.

Background

With the development of composite material technology, aircraft products are manufactured by adopting a large number of composite materials, certain thin-wall products made of the composite materials have the characteristics of long and narrow appearance, extremely light weight and weak rigidity, when the products are molded on a die and enter an assembly fixture before detection, cleaning, painting, gluing, polishing and other processes are needed, due to the reasons of weak rigidity, severe field operation environment, long operation time and the like, the products cannot be or cannot be manually carried, turned and held, and a tool is needed to clamp and turn the products. The most common clamping and turning method in the prior art is that a frame is manufactured according to the approximate outline of a product, the frame surrounds the length and the width of the product for a circle, a connecting joint is arranged on the frame to be connected with the product, the product and the frame are connected to form a whole, the clamping effect on the product is achieved, when the product needs to be turned over, the whole formed by the frame and the product is turned over by using a rotating tool, for example, a certain wall plate of a certain forming machine is made of full composite materials, the length of the utility model is more than ten meters, the width is less than one meter, the wall thickness is only about two millimeters, the weight is less than thirty kilograms, if the panel is turned over according to the above-described turning method, it is necessary to manufacture a frame having a length of ten meters or more, and since the frame is long, in order to ensure that the frame does not deform greatly under the dead weight, a large-section material is required to be selected, so that the dead weight of the frame reaches more than one ton and is far greater than the weight of a product, meanwhile, the rotary tool has to strengthen the rotary driving force and the self rigidity so as to drive the frame and the product to turn over. On the other hand, because the size of the turnover tool is large, the turnover tool still occupies a large amount of factory space when being periodically idle, and the factory building is split into a plurality of isolated areas, so that the accessibility of the factory building is influenced. In addition, the turnover device is only suitable for one product, and a plurality of special turnover tools need to be manufactured on site when the types of the products are more, so that the tool cost is greatly improved, a large amount of workshop space is occupied, and the economy is poor.

In the production process of an airplane, a clamping and overturning auxiliary tool which is large in flexibility, low in cost, simple and light in structure and capable of being rapidly reconstructed is needed to clamp and overturn a light and weak-rigidity component with a long and narrow appearance.

Disclosure of Invention

In order to meet the production and development requirements of an airplane and overcome the problems existing in the prior art, the application aims to provide the flexible large-span weak-rigidity light component clamping and overturning device and method.

The utility model provides a weak rigidity light part turning device of flexible large-span, including a set of symmetrical arrangement's roll-over table, two wire rope, a plurality of deformation compensation anchor clamps, powerful turn-buckle, the tensiometer, electrical control system, a set of symmetrical arrangement's roll-over table is fixed subaerial, two wire rope one end in proper order with the tensiometer, fix in the roll-over table side after the powerful turn-buckle is established ties, another roll-over table fixed connection of the other end and symmetrical arrangement, two wire rope parallel arrangement, its interval exceeds the maximum width of product, a plurality of deformation compensation anchor clamps are arranged respectively on two wire rope, one end is connected with wire rope, the other end is connected with the corresponding tie point on the product, a set of roll-over table of electrical control system control drives the product upset in step. The overturning platform comprises a main body frame, a flange shaft, a speed reduction servo motor, a thrust block, a coupler and a rotating beam, wherein the main body frame is of a frame structure, the main body frame is fixed on the ground, the speed reduction servo motor is arranged above the main body frame, an output shaft of the speed reduction servo motor is fixedly connected with the flange shaft through the coupler, the flange shaft penetrates through the thrust block and then is fixedly connected with the rotating beam, the thrust block is fixedly connected above the main body frame, and two connecting joints are arranged on the rotating beam. The thrust bearing comprises two thrust bearings and a bearing mounting seat, the bearing mounting seat is provided with a cylindrical cavity matched with the thrust bearings and a through hole, the through hole is coaxial with the cylindrical cavity, the two thrust bearings are symmetrically mounted in the cylindrical cavity, and the two thrust bearings are clamped on two sides of a limiting step arranged on the flange shaft. The deformation compensation anchor clamps contain product engaging lug, spring, small-size turn-buckle, wire rope clamp, and wire rope clamp is U type structure, and U type structure opening one side is through the bolt with wire rope clamp fastening in U type structure, and U type structure lower extreme is provided with the joint of being connected with small-size turn-buckle one end, and the small-size turn-buckle other end is connected with spring one end, and the spring other end is connected with the product engaging lug that establishes articulate, and the product engaging lug is connected with the product tie point that corresponds.

The using method of the turnover device comprises the following steps:

1, obtaining the minimum pre-tightening force required by the steel wire rope by using an experimental method, wherein the experimental method comprises the following steps: fixing one end of a steel wire rope, connecting the other end of the steel wire rope with a tension meter and a strong wire grip in series, fixing the other end of the strong wire grip, then hanging a heavy object with the same weight as a product at the middle position of the steel wire rope, adjusting the strong wire grip, measuring the maximum downward deflection of the steel wire rope, and recording the tension value of the tension meter connected with the steel wire rope in series at the moment when the maximum downward deflection is smaller than the maximum allowable stretching amount of a spring of a deformation compensation clamp, wherein the tension value is the minimum pre-tightening force of the steel wire rope;

2 when clamping the product, using a strong wire tightener to tighten the steel wire rope to a required pre-tightening state according to the indication number of the tension meter, namely the indication number of the tension meter is larger than the minimum pre-tightening force, then connecting one end of a steel wire rope clamping device of the deformation compensation clamp with the steel wire rope, connecting a product connecting lug at the other end with the product, adjusting a small wire tightener of the deformation compensation clamp after the connection is finished, tightening the product between two steel wire ropes, and finishing the product clamping work,

3 when the product is turned over, after the clamping work is finished, the electric control system is operated to control the servo motors of the two turning tables to drive the shaft coupling, the flange shaft and the rotating beam to turn over synchronously, and the two steel wire ropes, the product, the plurality of deformation compensation fixtures and the rotating beam are turned over synchronously with the rotating beam as a whole.

The beneficial effect of this application lies in: the two steel wire ropes distributed between the overturning platforms have strong anti-deformation capability after being pre-tightened, the product is connected with the two steel wire ropes through the deformation compensation fixture to realize the clamping of the product, the overturning platform is controlled by the electrical control system to drive the two steel wire ropes, the deformation compensation fixture and the product to rotate to realize the overturning of the product, the deformation compensation fixture matched with the product is selected and arranged according to the product appearance to realize the flexible clamping and overturning of different products, when the product is not used, the steel wire ropes, the deformation compensation fixture, the tensiometer and the powerful tightener are dismantled, the multiplexing of the space between the two overturning platforms is realized, the problems that the traditional tool is long and narrow in shape, the quality is light and the rigidity is weak are solved, when the product is clamped and overturned, the traditional tool is a special tool, a large frame which surrounds the product for one circle needs to be manufactured, and large overturning structures are manufactured at two ends, so that the structure is heavy, the economy is poor, and the product does not have flexibility, the problem of workshop accessibility is influenced to the workshop space that splits when idle, has universal suitability to all product centre gripping upset that have the appearance long and narrow, the quality is light, rigidity is relatively weak characteristics.

The present application will be described in further detail with reference to the following drawings and examples.

Drawings

Fig. 1 is a schematic structural view of the turning device.

Fig. 2 is a partial schematic view of the structure of the turnover device.

Fig. 3 is a schematic structural view of the overturning platform.

Fig. 4 is a schematic diagram of the flange shaft thrust block fit.

Fig. 5 is a schematic view of a rotating beam structure.

The numbering in the figures illustrates: the device comprises a 1 overturning platform, 2 products, 3 steel wire ropes, 4 deformation compensation clamps, 5 powerful tighteners, 6 tension meters, 7 electric control systems, 8 main body frames, 9 flange shafts, 10 speed reduction servo motors, 11 thrust seats, 12 couplers, 13 rotating beams, 14 steel wire rope clamping devices, 15 thrust bearings, 16 bearing mounting seats, 17 small tighteners, 18 beam end connectors, 19 product connecting lugs and 20 springs.

Detailed Description

Referring to the attached drawings 1-5, the flexible large-span weak-rigidity light component clamping and overturning device comprises a group of symmetrically arranged overturning tables 1, two steel wire ropes 3, a plurality of deformation compensation clamps 4, a strong wire tightener 5, a tension meter 6 and an electrical control system 7, wherein the group of symmetrically arranged overturning tables 1 are fixed on the ground, one ends of the two steel wire ropes 3 are sequentially connected with the tension meter 6 and the strong wire tightener 5 in series and then fixed on the side surface of the overturning table 1, the other ends of the two steel wire ropes are fixedly connected with the other symmetrically arranged overturning table 1, the two steel wire ropes 3 are arranged in parallel, its interval surpasses the maximum width of product 2, and a plurality of deformation compensation anchor clamps 4 are arranged respectively on two wire rope 3, and one end is connected with wire rope 3, and the other end is connected with the tie point that corresponds on the product 2, and a set of roll-over table 1 of electrical control system 7 control drives the upset of product 2 in step.

The overturning platform 1 comprises a main body frame 8, a flange shaft 9, a speed reduction servo motor 10, a thrust block 10, a coupler 12 and a rotating beam 13, wherein the main body frame 8 is of a frame structure, the main body frame 8 is fixed on the ground, the speed reduction servo motor 10 is installed above the main body frame 8, an output shaft of the speed reduction servo motor 10 is fixedly connected with the flange shaft 9 through the coupler 12, the flange shaft 9 penetrates through the thrust block 10 and then is fixedly connected with the rotating beam 13, the thrust block 10 is fixedly connected above the main body frame 8, and two beam end connectors 18 are arranged on the rotating beam 13.

The thrust block 10 contains two thrust bearings 15, bearing mount 16, and bearing mount 16 is provided with the cylinder cavity and the via hole with thrust bearing 15 matched with, and the via hole is coaxial with the cylinder cavity, and two thrust bearings 15 symmetry are installed in the cylinder cavity, and two thrust bearings 15 block the spacing step both sides that flange axle 9 established.

Deformation compensation anchor clamps 4 contain product engaging lug 19, spring 20, small-size turn-buckle 17, wire rope binding clasp 14 is U type structure, U type structure opening one side is fixed in the U type structure with wire rope through the bolt, U type structure lower extreme is provided with the joint of being connected with small-size turn-buckle 17 one end, the small-size turn-buckle 17 other end is connected with spring 20 one end, the spring 20 other end is connected with the articulate that establishes on the product engaging lug 19, product engaging lug 19 is connected with the product tie point that corresponds.

The using method of the turnover device comprises the following steps:

1, firstly, obtaining the minimum pretightening force required by a steel wire rope 3 by using an experimental method, wherein the single-point concentrated stress of the steel wire rope 3 is more serious than the deflection deformation of the steel wire rope under the multipoint distributed stress, so the experimental method is set as follows: fixing one end of a steel wire rope 3, connecting the other end of the steel wire rope with a tension meter 6 and a strong wire grip 5 in series, fixing the other end of the strong wire grip 5, then hanging a heavy object with the same weight as the product 2 at the middle position of the steel wire rope 3, adjusting the strong wire grip 5, measuring the maximum downwarping amount of the steel wire rope 3, and recording the tension value of the tension meter 6 connected with the steel wire rope 3 in series at the moment when the maximum downwarping amount is smaller than the maximum allowable stretching amount of a spring 20 of a deformation compensation clamp 4, wherein the tension value is the minimum pre-tightening force of the steel wire rope 3;

2 when clamping the product 2, the steel wire rope 3 is tensioned to a required pre-tightening state by using a powerful tightener 5 according to the indication number of the tensiometer 6, namely the indication number of the tensiometer 6 is larger than the minimum pre-tightening force, then one end of a steel wire rope clamping device 14 of the deformation compensation clamp 4 is connected with the steel wire rope 3, a product connecting lug 19 at the other end is connected with the product, a small tightener 17 of the deformation compensation clamp 4 is adjusted after the connection is finished, the product 2 is tensioned between the two steel wire ropes 3, the clamping work of the product 2 is finished,

3 when the product 2 is turned over, after the clamping work is finished, an electric control system 7 is operated to control servo motors of the two turning tables 1 to drive the coupler 12, the flange shaft 9 and the rotating beam to turn over synchronously, the two steel wire ropes 3, the product 2, the plurality of deformation compensation fixtures 4 and the rotating beam as a whole are turned over synchronously with the rotating beam, the deformation condition of the steel wire ropes 3 is changed along with the change of the turning angle in the turning process, the deformation along the plane normal direction formed by the two vertical steel wire ropes 3 is self-adaptive by the elastic deformation of the product 2, the deformation between the two steel wire ropes 3 is adaptively compensated by the springs 20 of the deformation compensation fixtures 4, and the turning work is finished,

when the space between the two overturning tables 1 is needed to be used in an idle state, the deformation compensation clamp 4 is removed, and the powerful tightener 5 is loosened to remove the steel wire rope 3, the powerful tightener 5 and the tension meter 6.