KR20120117421A - Docking apparatus and moving apparatus having the same and docking method for moving apparatus - Google Patents

Abstract

PURPOSE: A docking device, an autonomous moving device with the same, and a docking method of the autonomous moving device are provided to effectively perform task in a block with multiple cells because a working robot can easily move between movable platforms. CONSTITUTION: A docking device comprises a frame(120), a first docking part(130a), a second docking part(130b), a rotary shaft part(140), and an operating part(150). A first penetrating part and a second penetrating part are respectively installed in both sides of the frame. The first docking part is protruded from the first penetrating part and has a first male screw part. The second docking part is protruded from the second penetrating part and has a second male screw part. The rotary shaft part is coupled to the first and second docking parts to deliver rotating force. The operating part rotates the rotary shaft part. The first male screw part is released from a first moving platform according to the rotation of the rotary shaft part. The second male screw part is wound on a second moving platform.

Description

DOCKING APPARATUS AND MOVING APPARATUS HAVING THE SAME AND DOCKING METHOD FOR MOVING APPARATUS

The present invention relates to a device used for the construction of a ship, and relates to a docking device that can facilitate docking between mobile platforms, an autonomous mobile device having a docking device and a docking method of the autonomous mobile device.

As ships get bigger, the blocks that make up the hull are also getting bigger. As a block becomes larger, a lot of time and effort are required for painting the inside of the block or installing a panel inside the block.

Accordingly, there is a need for an apparatus for freely moving a device necessary for the work to a desired position within the block so that the work performed inside the block can be easily performed. An apparatus for freely moving inside the block includes an autonomous mobile apparatus using a wire.

The autonomous mobile device using a wire includes a mobile platform on which a working robot is mounted, a wire for moving the mobile platform, and a wire control device. Here, the ends of the wires are provided at predetermined positions in the block.

When you want to place the working robot in the desired place in the block, calculate the length of each wire according to the position and adjust the length of each wire to move the moving platform of the autonomous platform to locate the working robot. The block making up the hull is divided into several cells, so the work robot required for working inside the block must move between the various cells.

Accordingly, an entrance and exit are formed between adjacent cells of the block, and the work robot moves between the cells through the entrance and exit. On the other hand, since the mobile platform can be moved only in each cell, in order for the work robot to move to and work on multiple cells, a plurality of mobile platforms located in each cell must be docked with each other through the doorway.

Accurate alignment is required for docking between multiple mobile platforms. However, it is difficult for the mobile platform to accurately form an alignment due to a feed error or a measurement error. Accordingly, there is a fear that docking between mobile platforms may not be easy.

Embodiments of the present invention are to provide a docking device that can easily move the work robot between the mobile platform in the autonomous mobile device, an autonomous mobile device having a docking device and a docking method of the autonomous mobile device.

According to an aspect of the invention, the docking device for connecting the first and second moving platform for controlling the position by controlling the length of the wire, comprising: a frame provided with a first through and a second through on each side; A first docking portion which protrudes into the first through portion and includes a first male thread portion; A second docking portion protruding to the second through portion and having a second male thread portion; A rotating shaft unit coupled to the first docking unit and the second docking unit to transmit rotational force; And an operation part for rotating the rotary shaft part, wherein the first male screw part is released from the first moving platform according to the rotation of the rotating shaft part, and the second male screw part is wound around the second moving platform. A docking device may be provided.

The first docking portion may further include a first support member having a conical shape coupled to the first male screw portion and supported by the first through portion, and the second docking portion may have the second male portion at the second male portion. It may further include a conical second support member coupled to the threaded portion and supported by the second through portion.

The first movable platform may include a first female screw portion in which a first male screw portion is screwed in correspondence to the first docking portion, and a first accommodating groove having a conical first accommodating groove to accommodate the first supporting member. And a second female screw portion in which the second male screw portion is screwed in correspondence with the second docking portion, and a second receiving groove having a conical shape to accommodate the second supporting member. 2 receptacles may be included.

In addition, the rotating shaft portion, the drive shaft receives the rotational force of the operating unit; A pair of end shafts respectively coupled to the first and second docking portions; And a connecting shaft interconnecting the drive shaft and the first and second end shafts with a universal joint.

In addition, the operation unit, a motor; And it may include a gear device for transmitting a rotational force generated by the motor to the drive shaft.

In addition, a support part coupled to the inside of the frame and an elastic member interposed between the support part and the second docking part to elastically support the second docking part may be further included.

In addition, at least one insertion portion formed on the first and second moving platforms may be provided, and at least one protrusion formed on an outer side of the frame may be further provided to correspond to the insertion portion.

In addition, the first and second moving platform may be provided with a guide bar, and further includes a slide member protruding from the lower portion of the frame and a slide hole formed to pass through the guide bar.

In addition, the first and second moving platform may be provided with a tube through which the cable passes, the lower portion of the frame may be formed through the cable passing through the cable.

In addition, three or more proximity sensors for detecting the proximity of the frame to the second moving platform, the horizontal sensing of the frame and the second moving platform may be further included.

In addition, a probe sensor for detecting that the frame is approaching to the second moving platform may be further included.

According to another aspect of the invention, a pair of adjacent first and second moving platform; And any one of the above-described docking devices mounted on the mobile platform, and the autonomous mobile device may be provided in which the docking device is mounted on the second mobile platform by the operation unit.

According to another aspect of the present invention, in an autonomous mobile device having a plurality of moving platforms for controlling the position by controlling the length of the wire, the second docking is provided with a first docking portion and a second male screw portion provided with a first male threaded portion; In the docking method of the autonomous platform for moving the work robot on the first moving platform to the second moving platform using a docking device protruding to both sides, the first male screw portion of the docking device is the first movement Accessing the first moving platform screwed to the first female threaded portion of the platform to the second moving platform by controlling the length of the wire; Moving the working robot on the first moving platform to the docking device; Docking the docking device on the second moving platform by rotating the first male threaded portion to release the docking device from the first female threaded part, and rotating the second male threaded part to screw the second female threaded part; A docking method of an autonomous mobile device may be provided that includes moving the working robot to the second moving platform.

The docking apparatus may further include a probe sensor detecting whether the second moving platform is close to each other, and the approaching of the first moving platform to the second moving platform may include the probe sensor being connected to the second moving platform. The method may include reducing the approach speed of the first mobile platform in contact.

The method may further include partially releasing the first male threaded portion from the first female threaded portion before docking the second moving platform.

In addition, after the step of partially releasing from the first female screw portion, the length of the wire is controlled by the signal received by the probe sensor so that the second male screw portion reaches the inlet of the second female screw portion to the first moving platform. The method may further include approaching the second moving platform.

In addition, after the step of screwing the second male screw portion to the second female screw portion, receiving a signal by the probe sensor to detect the completion state of the second mobile platform and the docking device to stop the operation of the rotating shaft portion It may further include.

Embodiments of the present invention allow the work robot to be easily moved between mobile platforms, so that work can be efficiently performed within a block having multiple cells.

1 is a perspective view showing an autonomous mobile device according to an embodiment of the present invention.
Figure 2 is an internal perspective view showing a docking device according to an embodiment of the present invention.
Figure 3 is a side view showing a docking device according to an embodiment of the present invention.
Figure 4 is a flow chart showing a docking method of the autonomous mobile device according to an embodiment of the present invention.
5 to 10 schematically show the operation of the autonomous platform according to an embodiment of the present invention.
11 is a view showing a probe sensor according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, an embodiment of a docking apparatus according to the present invention, an autonomous mobile apparatus having a docking apparatus and a docking method of the autonomous mobile apparatus will be described in detail with reference to the accompanying drawings, and in the following description with reference to the accompanying drawings, Corresponding components are given the same reference numerals and redundant description thereof will be omitted.

1 is a perspective view showing an autonomous mobile device according to an embodiment of the present invention.

An autonomous mobile device will be described with reference to FIG. 1.

The autonomous mobile device 200 includes a first mobile platform 200a and a second mobile platform 200b adjacent to each other, and a docking device for docking the first mobile platform 200a and the second mobile platform 200b ( 100). The first and second moving platforms 200a and 200b may control the position by controlling the length of the wire 4.

The first moving platform 200a may be equipped with a work robot 5 for performing work such as painting and welding in the block. The first and second moving platforms 200a and 200b are connected to a wire 4 installed on a support (not shown), such as a wall of the block, and a wire control device 3 for adjusting the length of the wire 4 is installed. Can freely move inside the block.

The docking apparatus 100 may be mounted on the outside of the first moving platform 200a to move the work robot 5 to the adjacent second moving platform 200b. In the autonomous mobile device 200, a plurality of mobile platforms 200a and 200b may be arranged in a plurality of blocks in the block by the wires 4.

The work robot 5 is disposed on the first mobile platform 200a for convenience of description, and the work robot 5 on the first mobile platform 200a is connected to the second mobile platform 200b through the docking device 100. It will be described as being moved to. The first mobile platform 200a and the second mobile platform 200b have the same function and function. Accordingly, the work robot 5 on the second moving platform 200b may be moved to the first moving platform 200a.

The autonomous platform 200 is installed in each of the cells 1a and 1b partitioning the block, and is connected to the pair of first and second mobile platforms docked through the doorway 1c connecting the cells 1a and 1b. 200a and 200b. Here, a first rail 210a may be provided on the first moving platform 200a and a second rail 210b may be provided on the second moving platform 200b to move the work robot 5. In response to the first and second rails 210a and 210b, the docking apparatus 100 may be provided with a third rail 110a.

Thus, the working robot 5 may be movable through the first rail 210a, the second rail 210b, and the third rail 110a. That is, the first rail 210a of the first mobile platform 200a and the third rail 110a of the docking device 100 are aligned so that the work robot 5 moves from the first mobile platform 200a to the docking device 100. ) Can be moved. In addition, the third rail 110a and the second rail 210b may be aligned to move the work robot 5 from the docking apparatus 100 to the second moving platform 200b.

In addition, a tube (not shown) through which a cable (not shown) penetrates may be provided inside the first and second moving platforms 200a and 200b. In this case, the cable may be configured to supply power for driving the autonomous platform 200 and the docking apparatus 100.

The first moving platform 200a is provided with a pair of first receiving parts (see FIGS. 9 and 10: 220a) and a second receiving part (see FIGS. 5 to 8: 220b), and the second moving platform 200b. ) Is also provided with a pair of the first accommodating part 220a and the second accommodating part 220b. For ease of understanding, the drawings show the first receiving portion 220a and the second receiving portion 220b where they are docked.

The first accommodating portion 220a includes a first female threaded portion (see FIG. 9: 221a) in which a thread is formed and a first accommodating groove (refer to FIG. 9: 223a) at the end of the first female threaded portion 221a. can do. The second accommodating portion 220b includes a second female threaded portion (see FIG. 5: 223b) in which a thread is formed, and a second conical shape receiving recess (see FIG. 5: 221b) at the end of the second female threaded portion 223b. can do.

In the following, for convenience of understanding, the first receiving portion 220a is provided on the first moving platform 200a, and the second receiving portion 220b is provided on the second moving platform 200b so that each is coupled and released. Explain that it is.

2 is an internal perspective view of a docking apparatus according to an embodiment of the present invention, Figure 3 is a side view showing a docking apparatus according to an embodiment of the present invention.

2 and 3, the docking apparatus 100 will be described.

The docking apparatus 100 may connect a pair of adjacent first and second moving platforms 200a and 200b. The docking apparatus 100 may include a frame 120, a first docking unit 130a, a second docking unit 130b, a rotation shaft unit 140, and an operation unit 150. According to the rotation, the first male screw portion 131a may be released from the first moving platform 200a, and the second male screw portion 131b may be wound around the second moving platform 200b.

The frame 120 may be provided with a first through part 121 and a second through part 123 on both sides thereof. A cable through part 185 through which a cable passes may be formed below the frame 120. The cable may pass through a tube provided in the moving platform 200a and pass through a tube inside the second moving platform 200b via the cable through part 185.

The first docking part 130a may protrude into the first through part 121 and may include a first male thread part 131a and a first support member 133a. The front end portion of the first support member 133a may be coupled to the first male screw portion 131a.

The first support member 133a may have a conical shape supported by the first through part 121 and may have a shape such as a bottleneck in which a cross-sectional area is enlarged in an inner direction of the frame 120. The first support member 133a having a conical shape is supported by the first through portion 121 so that the first male screw portion 131a and a part of the first support member 133a are moved outwardly through the first through portion 121. It may protrude.

The shape of the first docking portion 130a and the first receiving portion 220a may be formed to correspond to the first docking portion 130a to be seated and engaged with the first receiving portion 220a. 131a may be screwed into the first female screw portion 221a, and the first support member 133a may be received in the first receiving groove 223a.

The second docking part 130b may protrude into the second through part 123 and may include a second male thread part 131b and a second supporting member 133b. The front end portion of the second support member 133b may be coupled to the second male screw portion 131b.

The second support member 133b may have a conical shape supported by the second through part 123 and may have a shape such as a bottleneck in which a cross-sectional area is enlarged in an inner direction of the frame 120. The conical second support member 133b is supported by the second through portion 123 so that the second male screw portion 131b and a part of the second support member 133b are moved outward through the second through portion 123. It may protrude.

The shape of the second docking portion 130b and the second receiving portion 220b may be formed correspondingly, such that the second male screw portion 131b may be screwed to the second female screw portion 223b, and the second support may be The member 133b may be accommodated in the second receiving groove 221b.

When the second male thread portion 131b flows into the second receiving groove 221b which is the inlet of the second female thread portion 223b, the second receiving groove 221b guides the second male thread portion 131b. can do. Accordingly, when the second male thread portion 131b approaches the second female thread portion 223b, the virtual center axis of the second male thread portion 131b is the same as the virtual central axis of the second female thread portion 223b. Although not matched, the second male screw portion 131b may be guided to the second female screw portion 223b by the second receiving groove 221b.

Therefore, when docking the pair of first and second mobile platforms 200a and 200b, docking may be facilitated without complicated control of the position and posture of the first and second mobile platforms 200a and 200b. have.

That is, the work robot 5 may be moved through the docking apparatus 100 without having to control the wire 4 to accurately align the first rail 210a and the second rail 210b. Therefore, the docking process of the first and second mobile platforms 200a and 200b can be simplified and the time required for docking can be shortened, thereby increasing the efficiency of the work in the block.

In addition, since the first and second supporting members 133a and 133b may be formed in a conical shape, the first and second supporting members 133a and 133b may increase the area of contact with the first and second receiving grooves 223a and 221b. Can be. In addition, when the engagement of each of the first and second male thread portions 131a and 131b is completed, each of the first and second support members 133a and 133b is excessive to each of the first and second male thread portions 131a and 131b. You can block entry. Here, excessive entry may mean that the first and second male thread parts 131a and 131b are coupled to the first and second female thread parts 221a and 223b, and are subsequently inserted into the opposite side to be separated from before the coupling. Can be.

When the virtual horizontal center axis of the second male thread portion 131b is shifted from the center of the horizontal axis of the second female thread portion 223b (see FIG. 8), the lower right side of the second male thread portion 131b is the second female thread portion ( 223b), but friction occurs, but the upper right side of the second male screw portion (131b) is not engaged, the frictional imbalance occurs as the second male screw portion (131b) is coupled to the second female screw portion (223b) There exists a possibility that the 2nd external thread part 131b may be worn.

In order to prevent this, as shown in FIG. 2, an end portion of the second male screw portion 131b is rounded so that no thread is formed so that the second male screw portion 131b is coupled to the second female screw portion 223b. It is possible to prevent the end of the second male screw portion 131b from being worn.

The support part 125 for supporting the elastic member 160 may be coupled to the inside of the frame 120. An elastic member 160 may be interposed between the support part 125 and the second docking part 130b. The elastic member 160 may elastically support the second docking portion 130b.

The elastic member 160 may push the second male screw portion 131b in the direction of the second moving platform 200b so that the second male screw portion 131b does not spin. When the elastic member 160 pushes the second docking portion 130b, the second male screw portion 131b is rotated while advancing in the direction of the second female screw portion 223b in accordance with the rotation of the rotary shaft portion 140. 2 can be easily coupled by preventing the male screw portion (131b) is not empty. The elastic member 160 may be, for example, a spring.

The rotating shaft part 140 may be provided to be relatively movable with respect to the inner side of the first through part 121 and the second through part 123. The rotary shaft unit 140 may be provided in the longitudinal direction of the first moving platform 200a such that the first moving platform 200a and the second moving platform 200b are aligned and connected in a line.

Here, the second female screw portion 223b provided in the second moving platform 200b has a length of the second moving platform 200b such that the rotation shaft portion 140 is inserted in the longitudinal direction of the second moving platform 200b. It can be formed in the direction.

The rotating shaft unit 140 may be coupled to the first docking unit 130a and the second docking unit 130b to transmit rotational force. The rotary shaft unit 140 may include a driving shaft 141, a pair of end shafts 143, and a connecting shaft 145.

The drive shaft 141 may receive the rotational force of the operation unit 150. The drive shaft 141 may be coupled to the gear device 153 described later. The pair of distal shafts 143 may be coupled to the first and second docking units 130a and 130b, respectively. Here, the first and second docking units 130a and 130b may be slidably connected to each of the pair of end shafts 143. The first and second support members 133a and 133b may protrude from each side of the first and second male thread parts 131a and 131b to be slidably connected to the pair of end shafts 143.

Thus, when the universal joint (see FIG. 2) 147 is rotated to shorten the horizontal width of the rotating shaft unit 140, the first docking unit 130a and the second docking unit 130b correspond to the shortened horizontal width. Sliding out of the frame 120 may cancel the shortened length.

The connecting shaft 145 may interconnect the driving shaft 141 and the distal shaft 143 with the universal joint 147. Accordingly, when the first and second moving platforms 200a and 200b are disposed to be offset, the virtual horizontal central axis of the first female threaded portion 221a to which the first male threaded portion 131a is docked and the second male threaded portion ( Even if the virtual horizontal central axis of the second female screw portion 223b to which the 131b is docked is eccentric, the rotational force of the driving shaft 141 may be transmitted to the distal axis 143. In this case, the distal end shaft 143 and the connecting shaft 145 may be bent relative to the drive shaft 141 with the universal joint 147 as the shaft.

The operation unit 150 may rotate the rotation shaft unit 140. The operation unit 150 may include a motor 151 and a gear device. The gear device may transmit the rotational force generated from the motor 151 to the drive shaft 141. The gear device may be provided with a plurality of gears to reduce the rotational force of the motor 151.

For example, the gear device may include a first gear member 153a, a second gear member 153b, and a third gear member (not shown). The first gear member 153a may be fitted to the driving shaft 141. The third gear member may be coupled to the motor 151 to receive the power of the motor 151. Gears may be provided at both ends of the second gear member 153b, one end may be engaged with the first gear member 153a, and the other end may be engaged with the third gear member.

By the operation unit 150 as described above, by screwing the motor 151 in the direction in which the second male screw portion 131b is fastened to the second female screw portion 223b at the time of docking, screwing necessary for docking can be achieved. . In the present embodiment, the motor 151 and the gear device are provided as the operation unit 150, but the present invention is not limited thereto.

When the docking device 100 is coupled to the second moving platform 200b, the docking device 100 may support the docking device 100 so as not to be separated from the first moving platform 200a, and guide the movement of the docking device 100. The guide bar 240 may be mounted on the first moving platform 200a. The slide member 180 penetrated with the guide bar 240 and slides along the guide bar 240 may protrude from the lower portion of the frame 120. The slide member 180 may have a slide hole 181 through which the guide bar 240 penetrates.

For example, the guide bar 240 may include a large diameter member 241, an inclined member 243, and a small diameter member 245. The large diameter member 241 may have an outer diameter formed as an inner diameter of the slide hole 181, and may be coupled to the first moving platform 200a. The inclined member 243 is formed to extend in the large diameter member 241 and the outer diameter may be reduced as it moves away from the large diameter member 241. The small diameter member 245 is provided to extend to the inclined member 243 and the outer diameter may be smaller than the outer diameter of the large diameter member 241. The large-diameter member 241 and the small-diameter member 245 may be formed in a cylindrical shape, and variations thereof, such as the slide member 180 may be formed in a polygonal shape such as a rectangular parallelepiped that can move left and right. For example, the guide bars 240 may be provided in pairs on the left and right sides of the first moving platform 200a. A pair of slide members 180 may be provided to correspond to the guide bar 240. Unlike a pair of slide members 180, a pair of slide holes 181 may be formed in one slide member 180 to correspond to the guide bar 240.

The first and second docking units 130a and 130b may support the coupling force, and the frame 120 may be prevented from being rotated about the first and second docking units 130a and 130b in an axial direction. And insertion parts (not shown) may be formed in the second moving platforms 200a and 200b, and protrusions 170 may be formed on the outer side of the frame 120. A plurality of protrusions 170 may be formed at left and right ends of the frame 120, and a plurality of protrusions may be formed to correspond to the protrusions 170. The protrusion 170 may include a cone-shaped first protrusion 171 that protrudes to prevent rotation, and a second protrusion 173 that can support the weight of the frame while preventing rotation.

Alternatively, the protrusion 170 may be formed on the outside of the first and second moving platforms 200a and 200b, and the insertion portion is formed in the frame 120 corresponding to the protrusion 170 so that the protrusion 170 is inserted. Can be.

In addition, the protrusion 170 may be formed in a cone shape, and the insertion portion may be formed concave in correspondence with the protrusion 170. When the docking apparatus 100 approaches the second moving platform 200b, the cone-shaped protrusion 170 may be inserted into the insertion portion to guide the movement of the docking apparatus 100.

In addition, when the second docking unit 130b is coupled to the second receiving unit 220b, the proximity sensor 191 may detect the proximity of the docking apparatus 100 and the second moving platform 200b to the frame ( 120 may be provided. The proximity sensor 191 may be provided in three or more. The proximity sensor 191 may detect that the frame 120 is approaching the second moving platform 200b, and all three proximity sensors 191 detect the second moving platform 200b at the same distance. Accordingly, whether the frame 120 and the second moving platform 200b are horizontal may be detected.

In addition, the probe 120 may be provided in the frame 120. The probe sensor 193 may detect that the frame 120 is approaching the second moving platform 200b. The probe sensor 193 may detect the distance in stages as it is contracted by the second moving platform 200b. The probe sensor 193 may be a contact sensor that measures a proximity distance according to expansion and contraction.

Hereinafter, a method of docking the autonomous platform 200 using the autonomous platform 200 according to the above embodiment will be described. For convenience of understanding, as described above, an operation in which the docking apparatus 100 docked to the first mobile platform 200a is docked to the second mobile platform 200b will be described as an example.

4 is a flowchart illustrating a docking method of the autonomous platform according to an embodiment of the present invention, Figures 5 to 10 is a view schematically showing the operation of the autonomous platform according to an embodiment of the present invention, Figure 11 Is a view showing a probe sensor according to an embodiment of the present invention.

A docking method of the autonomous mobile device will be described with reference to FIGS. 4 to 11.

First, the first movable platform 200a of the docking device 100 is screwed to the first female threaded portion 221a of the first movable platform 200a. By controlling the length of the) can be approached to the second moving platform (200b) (S110). As shown in FIG. 5, in a state in which the first moving platform 200a and the second moving platform 200b on which the working robot 5 is mounted are separated from each other, the first moving platform 200a is the second moving platform ( When approaching 200b), the first moving platform 200a can be moved at high speed to shorten the time. As shown in FIG. 6, when the probe sensor 193 contacts the second moving platform 200b and detects that the docking apparatus 100 is close to the second moving platform 200b, the first moving platform 200a is detected. ) Can reduce the access speed (S111).

For example, in FIG. 11, when the speed of the first moving platform 200a is decreased until the probe sensor 193 is contracted to the length of the identification number d, the probe sensor 193 is contracted to the length of the identification number c. 1 The movement of the platform 200a can be stopped.

Next, the working robot 5 on the first moving platform 200a may be moved to the docking apparatus 100 (S120). This is because the work robot 5 may move along the third rail (see FIG. 1: 110a) on the first rail (see FIG. 1: 210a). In FIG. 7, the work robot 5 is moved to the docking apparatus 100.

Next, the first male screw portion 131a may be partially released from the first female screw portion 221a to give the degree of freedom of the frame (see FIG. 1) (S130). At this time, the first male screw portion 131a is partially released from the first female screw portion 221a so that the first supporting member 133a is spaced apart from the first through portion (see FIG. 2: 121), and the first moving platform. 200a and frame 120 may still be in close contact.

Accordingly, the first support member 133a supported by the first accommodation groove 223a is spaced apart from the first accommodation groove 223a to generate a gap, so that the frame 120 may be removed from the first docking portion 130a. It is possible to move in accordance with the movement of the second docking unit 130b with a degree of freedom.

In addition, when the docking operation described later is completed, when the first docking portion 130a is screwed to be seated back into the first receiving portion 220a, the release operation of the first male screw portion 131a is performed by the first docking portion. (130a) The length error of screwing can be canceled out. That is, in the operation to be described later, in the step in which the second male screw portion 131b reaches the inlet of the second female screw portion 223b, in order to be coupled to the second female screw portion 223b, The second male threaded portion 131b may be spaced apart from the inlet of the second female threaded portion 223b by the movement distance error of the first moving platform 200a. At this time, the rotary shaft 140 is rotated in correspondence to the spaced apart in addition to the rotation for the screw coupling. When the rotating shaft part 140 reversely rotates so that the first docking part 130a is seated back to the first receiving part 220a, the rotation corresponding to the spaced apart distance other than the rotation for screwing is performed by the first male screw part ( Since 131a is partially released from the first female screw part 221a, the error may be canceled out.

Next, as shown in FIG. 8, by controlling the length of the wire 4, the first moving platform 200a is moved so that the second male threaded portion 131b reaches the inlet of the second female threaded portion 223b. It may be approached to the second moving platform (200b) (S140).

This detects that when the first moving platform 200a controls the length of the wire 4 and moves to the second moving platform 200b, the probe sensor 193 shrinks from the identification number c to the identification number b length in FIG. When the second male screw portion 131b moves to the length of the identification number b corresponding to the length reaching the end of the second receiving groove 221b which is the inlet of the second female screw portion 223b, the first moving platform 200a ) May stop moving.

Next, the rotation shaft 140 is rotated to release the first male screw portion 131a from the first female screw portion 221a, and the second male screw portion 131b is rotated to screw the second female screw portion 223b. By doing so, as shown in FIG. 9, the docking apparatus 100 may be docked to the second moving platform 200b (S150).

11, when the probe sensor 193 is contracted to the length of the identification number b, the motor 151 is operated to rotate the rotation shaft unit 140 through the motor (see FIG. 2). As the rotation shaft 140 rotates, the first male screw portion 131a is released from the first female screw portion 221a, and the second male screw portion 131b may be screwed into the second female screw portion 221a. have.

This detects that the probe sensor 193 is contracted from the identification number b to the length less than the identification number a in FIG. 11, thereby detecting that the second docking unit 130b is completely seated on the second receiving unit 220b, thereby rotating the shaft unit. Rotation of 140 may stop.

As such, even when the position of the docking apparatus 100 and the second moving platform 200b is shifted, the second male thread portion 131b may be inserted into the second female thread portion 223b along the second receiving groove 221b. Therefore, accurate alignment of the first rail 210a and the second rail 210b may not be required. In addition, when the position of the docking device 100 and the second moving platform 200b is shifted, the rotary shaft portion 140 may be bent around the universal joint 147, so that the horizontal center axis of the first male thread portion 131a is Irrespective of this, the second male screw portion 131b may be inserted into the second female screw portion 223b.

In addition, the elastic member 160 moves the second male screw portion 131b in the direction of the second moving platform 200b so that the second male screw portion 131b may be screwed forward by moving forward to the second female screw portion 223b without turning. It can be pushed and supported, and if the rotating shaft portion 140 continues to rotate, the second male screw portion 131b may be screwed to the second female screw portion 223b.

At this time, if the second support member 133b abuts against the second through part 123 and continues to be screwed into the second female threaded portion 223b, the frame 120 may be connected to the screw engagement of the second support member 133b. Accordingly, it may be docked by moving to the second moving platform 200b. As the second docking part 130b is seated on the second receiving part 220b, the second rail 210b and the third rail 110a may be accurately aligned.

As a result, the length of the first moving platform 200a and the second moving platform 200b are aligned by controlling the length of the wire 4 and then the first rail 210a and the third rail 110a through the docking apparatus 100. ) Can be correctly aligned, and the third rail (110a) and the second rail (210b) can be accurately aligned.

Here, even when the docking apparatus 100 is docked on the second moving platform 200b and the second docking portion 130b is seated on the second receiving portion 220b, the end of the first male screw portion 131a It may be screwed to the first female screw portion (221a).

Next, the proximity sensor 191 may detect the coupling completion state of the second moving platform 200b and the docking apparatus 100 to stop the operation of the rotating shaft unit 140 (S160). In this case, as all three proximity sensors 191 detect the second moving platform 200b at the same distance, the three proximity sensors 191 may detect that the frame 120 and the second moving platform 200b are horizontal. In addition, as the probe sensor 193 is contracted to the length of identification number a of FIG. 11, the probe sensor 193 may detect that the docking is completed. The proximity sensor 191 and the probe sensor 193 may be operated at the same time or may be operated separately.

Next, the working robot can be moved to the second moving platform 200b (S170).

After the docking operation as described above is completed, when the first docking unit 130a is seated back into the first receiving unit 220a, the motor 151 may be operated in the reverse direction. This is because the rotation shaft 140 is rotated in the direction opposite to the docking process, the second male screw portion 131b is unscrewed from the second female screw portion 223b, the first male screw portion 131a is 1 can be screwed into the female screw portion (221a). The first and second moving platforms 200a and 200b may be arranged to control the length of the wire 4 so that the working robot 5 may perform the work.

The docking device, the autonomous mobile device having the docking device, and the docking method of the autonomous mobile device according to the embodiments do not need to precisely dock between the mobile platform on which the working robot is mounted, and the rail of the docking device and the mobile platform. The rails can be exactly aligned, allowing work to be done efficiently in blocks with multiple cells.

In the above description of the docking apparatus, the autonomous mobile device having the docking device and the docking method of the autonomous mobile device according to an embodiment of the present invention, but the spirit of the present invention is not limited to the embodiments presented herein, Those skilled in the art who understand the spirit of the present invention can easily suggest other embodiments within the scope of the same idea, by addition, modification, deletion, addition, etc., but this also falls within the spirit of the present invention. will be.

100: docking device 120: frame
121: first through part 123: second through part
130a: first docking portion 131a: first male thread portion
133a: first support member 130b: second docking portion
131b: second male thread portion 133b: second support member
140: rotating shaft portion 141: drive shaft
143: end shaft 145: connecting shaft
150: operating unit 160: elastic member
170: protrusion 180: slide member
185: cable through 200: autonomous mobile device
200a: first moving platform 200b: second moving platform
220a: first accommodating part 221a: first female thread part
230: insertion unit 240: guide bar
220b: second receiving portion

Claims (17)

A docking device for connecting a first and a second moving platform for controlling the position by controlling the length of the wire,
A frame having first and second through portions respectively provided at both sides thereof;
A first docking portion which protrudes into the first through portion and includes a first male thread portion;
A second docking portion protruding to the second through portion and having a second male thread portion;
A rotating shaft unit coupled to the first docking unit and the second docking unit to transmit rotational force; And
Including an operation unit for rotating the rotating shaft portion,
The first male screw portion is released from the first moving platform, the second male screw portion is wound on the second moving platform according to the rotation of the rotary shaft portion.
The method of claim 1,
The first docking unit,
The front end portion is further coupled to the first male screw portion, further comprising a first cone-shaped support member supported by the first through portion,
The second docking unit,
The front end is coupled to the second male screw portion, the docking device further comprises a conical second support member supported by the second through portion.
The method of claim 2,
In the first moving platform,
A first accommodating part including a first female screw part in which a first male screw part is screwed corresponding to the first docking part, and a first accommodating groove having a conical first accommodating groove to accommodate the first supporting member,
In the second moving platform,
A docking apparatus comprising a second female screw portion in which a second male screw portion is screwed in correspondence with the second docking portion, and a second receiving portion having a second receiving groove having a conical shape to accommodate the second supporting member. .
The method of claim 2,
The rotating shaft portion,
A drive shaft receiving the rotational force of the operating unit;
A pair of end shafts respectively coupled to the first and second docking portions; And
And a connecting shaft for interconnecting the drive shaft and the first and second end shafts with a universal joint.
The method of claim 4, wherein
Wherein,
motor; And
Docking device comprising a gear device for transmitting a rotational force generated by the motor to the drive shaft.
The method of claim 1,
A support coupled to the inside of the frame,
And an elastic member interposed between the support part and the second docking part to elastically support the second docking part.
The method of claim 1,
At least one inserting portion is formed on the first and second moving platforms,
Docking device, characterized in that further provided with at least one protrusion formed on the outside of the frame corresponding to the insertion portion.
The method of claim 1,
Guide bars are provided on the first and second moving platforms,
And a slide member protruding from a lower portion of the frame and having a slide hole formed therein so as to penetrate the guide bar.
The method of claim 1,
The first and second moving platforms are provided with a tube through which the cable passes,
Docking device, characterized in that the lower portion of the frame is formed through the cable passing through the cable.
The method of claim 1,
And at least three proximity sensors detecting the frame approaching the second moving platform and sensing the horizontality of the frame and the second moving platform.
The method of claim 1,
Docking device further comprises a probe sensor for detecting the proximity of the frame to the second moving platform.
A pair of adjacent first and second moving platforms; And
A docking apparatus according to any one of claims 1 to 11 mounted on the moving platform,
And a docking device mounted on the second moving platform by the operating unit.
In the autonomous mobile device having a plurality of moving platform for controlling the position by controlling the length of the wire, the docking device protruding to both sides the first docking portion provided with the first male screw portion and the second docking portion provided with the second male screw portion A docking method of an autonomous platform for moving a working robot on the first mobile platform to the second mobile platform by using
Accessing the first movable platform screwed to the first female threaded portion of the first movable platform by the first male threaded portion of the docking device to the second movable platform by controlling the length of the wire;
Moving the working robot on the first moving platform to the docking device;
Docking the docking device on the second moving platform by rotating the first male threaded portion to release the docking device from the first female threaded portion, and rotating the second male threaded portion to screw the second male threaded portion to the second female threaded portion;
Docking method of the autonomous platform comprising the step of moving the working robot to the second moving platform.
The method of claim 13,
The docking apparatus further includes a probe sensor for detecting the proximity of the second moving platform,
Approaching the first moving platform to the second moving platform,
Docking the autonomous platform according to claim 1, further comprising reducing the approach speed of the first moving platform as the probe sensor contacts the second moving platform.
The method of claim 14, wherein
Before docking to the second moving platform,
And partially releasing the first male screw portion from the first female screw portion.
16. The method of claim 15,
After the step of partially releasing from the first female thread portion,
And receiving the signal by the probe sensor to control the length of the wire so that the first moving platform approaches the second moving platform such that the second male screw portion reaches the inlet of the second female screw portion. A docking method of an autonomous mobile device characterized in that.
The method of claim 13,
After the step of screwing the second male threaded portion to the second female threaded portion,
And receiving a signal by the probe sensor to detect a coupling completion state of the second moving platform and the docking device to stop the operation of the rotating shaft unit.

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