Automatic lifting support device with support force monitoring

Abstract

The present invention discloses an automatic lifting support device with supporting force monitoring, comprising a support platform, on which is installed a power mechanism for driving a main lifting support foot assembly, the power mechanism comprising a driving motor and a transmission assembly, the transmission assembly comprising a main connecting rod, an auxiliary connecting rod and a commutator, the main connecting rod is connected to the driving motor and transmits power, the main connecting rod and the auxiliary connecting rod are connected through a commutator, and the end of the auxiliary connecting rod is connected to a screw lifter; the main lifting support foot assembly comprises a screw lifter connected to the auxiliary connecting rod, the screw lifter is connected to the main supporting foot through a transition connecting piece at the bottom, and a force sensor is also provided on the main supporting foot; the auxiliary lifting support assembly comprises a sliding block driven by a cylinder, an inclined sliding groove is provided on the sliding block, a roller cooperating with the sliding groove is provided in the sliding groove, the roller shaft is fixedly connected to a vertically arranged lifting column, an auxiliary supporting foot is provided at the bottom of the lifting column, and a ball joint is used to connect the lifting column and the auxiliary supporting foot.

Description

Technical Field

[0001] The present invention relates to the field of aerospace manufacturing, and in particular to an automatic lifting support device with supporting force monitoring. Background Art

[0002] In the field of aerospace manufacturing, the attitude adjustment module of the aircraft outer wing requires a stable support platform. On the one hand, the support platform needs to carry the entire support attitude adjustment module, and on the other hand, it also needs to move accurately to the designated working position.

[0003] The traditional method uses jigs and other tooling to support and position the outer wing. Due to the large size, weak rigidity and high positioning requirements of the outer wing assembly, and the difficulty in positioning the traditional tooling, the outer wing assembly is prone to low positioning accuracy, high assembly stress in the ear docking area, and easy deformation. For example, the outer wing leading edge skeleton assembly jig provided by publication number CN203062651U.

[0004] In the prior art, the utility model patent with publication number CN206125462U discloses an aircraft wing connection and installation auxiliary device, including a wing attitude adjustment mechanism, a wing bracket and an AGV trolley, the wing bracket is installed on the top of the AGV trolley through a plurality of wing attitude adjustment mechanisms arranged at the bottom of the wing bracket, and the wing is arranged on the wing bracket; the wing attitude adjustment mechanism includes a lifting drive mechanism, a Y-axis sliding mechanism and an X-axis sliding mechanism stacked up and down, the X-axis sliding mechanism and the Y-axis sliding mechanism are driven to slide by their own driving motors respectively, the lifting drive mechanism is arranged on a rotating drive mechanism on the slide table of the Y-axis sliding mechanism, the top of the lifting drive mechanism is movably hinged with the bottom of the wing bracket through a ball head, and the wing attitude adjustment mechanism is displaced up and down, front and back, left and right to make the wing at a suitable angle to align with the mounting hole of the aircraft fuselage to achieve docking assembly.

[0005] The auxiliary equipment of the above structure includes a wing attitude adjustment mechanism, a wing bracket and an AGV trolley. The bottom of the wing bracket is provided with multiple wing attitude adjustment mechanisms, and multiple wing attitude adjustment mechanisms are installed on the top of the AGV trolley. Although the existing auxiliary equipment is matched with the AGV trolley, since the wing bracket is installed on the trolley, there is a problem of unstable platform, easy displacement and tipping, so its installation accuracy still cannot meet the requirements of aircraft wing installation. The AGV trolley has no support device and no real-time force feedback system, the degree of automation is not high, and the utility model has no display system, and the visualization requirements are very low. Summary of the invention

[0006] The invention aims to provide an automatic lifting support device with support force monitoring. It is used to support the outer wing of an aircraft. The support foot is provided with a force detection sensor, which can provide real-time feedback of the support force. The support foot also has an air pressure detection sensor. The cylinder pressure can be detected in real time, so that the wing support is stable and the accuracy is greatly improved.

[0007] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0008] An automatic lifting support device with supporting force monitoring includes a support platform and a main lifting support foot assembly and an auxiliary lifting support assembly installed at the bottom of the support platform;

[0009] The support platform is provided with a power mechanism for driving the main lifting support foot assembly, the power mechanism includes a driving motor and a transmission assembly, the transmission assembly includes a main connecting rod, an auxiliary connecting rod and a commutator, the main connecting rod is connected to the driving motor and transmits power, the main connecting rod is connected to the auxiliary connecting rod through the commutator, and the end of the auxiliary connecting rod is connected to the screw lifter;

[0010] The main lifting support foot assembly includes a screw lift connected to an auxiliary connecting rod, the screw lift is connected to the main support foot through a transition connector at the bottom, and a force sensor is also provided on the main support foot;

[0011] The auxiliary lifting support assembly includes a slider driven by a cylinder, an inclined slide groove is arranged on the slider, a roller that rolls with the slide groove is arranged in the slide groove, the roller shaft is fixedly connected to a vertically arranged lifting column, an auxiliary supporting foot is arranged at the bottom of the lifting column, and a ball joint is used to connect the lifting column and the auxiliary supporting foot.

[0012] In the present invention, the main lifting support foot assembly is used to support the support platform, and the height of the main support foot is adjustable. The auxiliary lifting support assembly is used to further maintain the stability of the support platform and provide auxiliary support for the support platform.

[0013] Preferably, the main lifting support foot assemblies are four groups, distributed at the four corners of the bottom of the support platform, and are respectively connected to the end of an auxiliary connecting rod. The four groups of main lifting support assemblies can rise or fall at the same time to ensure the stability of the platform when rising or falling.

[0014] In order to allow the AGV to freely enter and exit the bottom of the device, preferably, the distance between the two main lifting support foot assemblies connected by the auxiliary connecting rod on the same side is greater than the width of the AGV.

[0015] Preferably, the transmission assembly is in an I-shape, and the commutator is provided between the main connecting rod and each auxiliary connecting rod.

[0016] In order to enable the main supporting foot to be in close contact with the uneven ground, preferably, the transition connector and the main supporting foot are connected by a ball joint.

[0017] Preferably, the cylinders in the auxiliary lifting support assembly are all provided with pressure monitoring devices for detecting the supporting force of the auxiliary supporting feet.

[0018] In the present invention, the visual control of the main lifting support leg assembly and the auxiliary lifting support leg assembly is performed. Preferably, the support platform is provided with an interactive panel connected to the drive motor, and the pressure monitoring device and the force sensor are both connected to the interactive panel, and the supporting force of the main support leg and the auxiliary support leg is monitored in real time through the interactive panel.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The main support legs and auxiliary support legs of the device are equipped with ball joints to adapt to the unevenness of the ground and improve stability.

[0021] 2. The main supporting foot is fixedly connected to a one-dimensional force sensor to realize real-time monitoring of the supporting force and improve the layout structure of the supporting force monitoring device.

[0022] 3. The servo motor is coupled and fixedly connected with the screw lift of the main support lifting assembly through the connecting rod, so as to realize the synchronous lifting of the four support points, fundamentally solving the problem of asynchronous operation of the support lifting assembly, reducing the scale of the control assembly of the lifting device, and improving the safety and coordination of the device.

[0023] 4. Each cylinder is equipped with a pressure monitoring device, which can monitor the supporting force of the auxiliary support legs in real time to further improve the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a bottom view of the support platform of the present invention;

[0026] Figure 3 is a schematic structural diagram of the main lifting support assembly of the present invention;

[0027] Figure 4 is a front view of the auxiliary lifting support assembly of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the transmission assembly of the present invention

[0029] Description of reference numerals:

[0030] Main lifting support foot assembly 1, auxiliary lifting support assembly 2, support platform 3, interactive panel 4, screw lift 5, transition connector 6, main support foot 7, force sensor 8, cylinder 9, slide 10, lifting column 11, roller 12, slider 13, slide cover 14, auxiliary support foot 15, pressure monitoring device 16, drive motor 17, main connecting rod 18, commutator 19, auxiliary connecting rod 20, transmission assembly 21, AGV trolley 22. DETAILED DESCRIPTION

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below. The directional words "upper", "lower", "left" and "right" involved in this article are set based on the corresponding drawings. It can be understood that the appearance of the above directional words does not limit the scope of protection of the present invention.

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] like Figure 1-5 As shown, the automatic lifting support device with support force monitoring of this embodiment includes a support platform 3, a drive motor 17 and a transmission assembly 21.

[0035] Transmission assembly 21, transmission assembly 21 includes main connecting rod 18, auxiliary connecting rod 20 and commutator 19, main connecting rod 18 is connected to driving motor 17 and transmits power, main connecting rod 18 is connected to auxiliary connecting rod 15 through commutator 19, end of auxiliary connecting rod 20 is connected to screw lift 5, all screw lifts can be lifted and lowered at the same time;

[0036] Four main lifting support foot assemblies 1 are arranged at the four corners of the support platform 3. The main lifting support foot assembly 1 includes a screw lift 5 connected to an auxiliary connecting rod 20. The screw lift 5 is connected to the main support foot 7 through a transition connector 6 at the bottom. A force sensor 8 is also provided on the main support foot 7 to provide the platform with stable support and real-time force monitoring. The transition connector 6 and the main support foot 7 are connected in a ball joint manner, and the main support foot has a self-locking function.

[0037] Four auxiliary lifting support assemblies 2 are arranged in the middle of the support platform 3. The auxiliary lifting support assembly 2 includes a slider 13 driven by a cylinder 9. The slider 13 is provided with an inclined slide groove 10. The slide groove 10 is provided with a roller 12 that rolls with it. The roller 12 is fixedly connected to the axis of a vertically arranged lifting column 11. An auxiliary supporting foot 15 is provided at the bottom of the lifting column 11. The lifting column 11 and the auxiliary supporting foot 15 are connected by a ball joint, which can fit tightly against the uneven ground to further assist in supporting the platform. Each cylinder 9 is equipped with a pressure monitoring device 16.

[0038] The spacing between the supporting feet enables the AGV (Automated Guided Vehicle) trolley 22 to move in and out freely. The drive motor 17, force sensor 8 and pressure monitoring device 16 are connected to the interactive panel 4, and the full name of the control is displayed and operated on the interactive panel.

[0039] Working principle: The driving motor 17 drives the main connecting rod 18, and the main connecting rod 18 transmits power to two auxiliary connecting rods 20 through the commutator 19. Each auxiliary connecting rod 20 drives two main lifting support foot assemblies 1. The four main lifting support foot assemblies 1 are raised at the same time and then self-locked. The AGV trolley 22 enters under the support platform 3 according to the command, and is quickly positioned under the positioning device. The four main lifting support foot assemblies 1 are lowered at the same time to fix the support device and the AGV trolley. After the AGV trolley moves the entire device to the target location, the four main lifting support foot assemblies 1 are raised at the same time, and the AGV trolley drives away. The four main lifting support foot assemblies 1 are lowered at the same time to lower the center of gravity of the device, and the four auxiliary lifting support foot assemblies 2 are lowered by the cylinder 9 to assist in supporting the ground. The whole process monitors the force conditions of the main support feet 7 and the auxiliary support feet 15 in real time, and is observed and operated through the interactive panel 4.

[0040] As described above, the present invention provides an automatic lifting support device with support force monitoring, which can be quickly positioned with the AGV trolley, and is coupled and fixedly connected with the screw lift of the main support lifting assembly by a motor through a connecting rod, so as to realize synchronous lifting of four support points, fundamentally solving the problem of asynchronous operation of the support lifting assembly, reducing the scale of the control assembly of the lifting device, and improving the safety and coordination of the device. The force sensor of the main support foot and the pressure monitoring device of the auxiliary support foot can provide real-time feedback on the size of the support force, and can be observed and operated through the interactive panel, with a high degree of automation and visualization. The device can also adapt to uneven ground, and the support stability is very good.

[0041] The above description is only an example of a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic lifting support device with support force monitoring, comprising a support platform (3) and a main lifting support foot assembly (1) and an auxiliary lifting support assembly (2) installed at the lower part of the support platform (3), characterized in that: A power mechanism for driving the main lifting support foot assembly (1) is installed on the support platform (3), the power mechanism comprising a driving motor (17) and a transmission assembly (21), the transmission assembly (21) comprising a main connecting rod (18), an auxiliary connecting rod (20) and a commutator (19), the main connecting rod (18) is connected to the driving motor (17) and transmits power, the main connecting rod (18) and the auxiliary connecting rod (20) are connected via the commutator (19), and the end of the auxiliary connecting rod (20) is connected to the screw lift (5); The main lifting support foot assembly (1) comprises a screw lift (5) connected to an auxiliary connecting rod (20); the screw lift (5) is connected to the main support foot (7) via a transition connecting piece (6) at the bottom; and a force sensor (8) is also provided on the main support foot (7); The auxiliary lifting support assembly (2) comprises a slider (13) driven by a cylinder (9), an inclined slide groove (10) is arranged on the slider (13), a roller (12) rollingly matched with the slide groove (10) is arranged in the slide groove (10), the axis of the roller (12) is fixedly connected to a vertically arranged lifting column (11), an auxiliary supporting foot (15) is arranged at the bottom of the lifting column (11), and a ball joint is adopted to connect the lifting column (11) and the auxiliary supporting foot (15); The cylinders (9) in the auxiliary lifting support assembly (2) are all provided with a pressure monitoring device (16) for detecting the supporting force of the auxiliary supporting legs; The main lifting support foot assembly (1) comprises four groups, which are distributed at the four corners of the bottom of the support platform and are respectively connected to the end of an auxiliary connecting rod (20); the transmission assembly (21) is in an I-shape, and the commutator (19) is provided between the main connecting rod (18) and each auxiliary connecting rod (20).

2. The automatic lifting support device with support force monitoring according to claim 1 is characterized in that: The distance between the two main lifting support foot assemblies (1) connected by the auxiliary connecting rod (20) on the same side is greater than the width of the AGV vehicle.

3. The automatic lifting support device with support force monitoring according to claim 1 is characterized in that: The transition connector (6) and the main support foot (7) are connected by a ball joint.

4. The automatic lifting support device with support force monitoring according to claim 1 is characterized in that: The support platform (3) is provided with an interactive panel (4) connected to the drive motor (17).

5. The automatic lifting support device with support force monitoring according to claim 4 is characterized in that: The pressure monitoring device (16) and the force sensor (8) are both connected to the interactive panel (4).

Images