KR102600578B1 - a logistics robot - Google Patents

Abstract

The present invention relates to a logistics robot, and more specifically, even if the size of the cargo is larger than the standard, it can be easily accommodated on a shelf or taken out from the shelf and stored in a storage device, as well as cargo stored in the storage device of the logistics robot while moving. This relates to a logistics robot that can prevent random departure even if a lateral load is applied to the robot.
The present invention for achieving the above object includes a moving device that moves within a logistics warehouse, a lifting frame installed on top of the moving device, and an entire side of the lifting frame that is movable up and down to move cargo to a shelf. It is characterized by comprising a pickup device that picks up cargo on a shelf, and a storage device installed at the rear of the lifting frame to store the cargo picked up through the pickup device.

Description

Logistics robot {a logistics robot}

The present invention relates to a logistics robot, and more specifically, even if the size of the cargo is larger than the standard, it can be easily accommodated on a shelf or taken out from the shelf and stored in a storage device, as well as cargo stored in the storage device of the logistics robot while moving. This relates to a logistics robot that can prevent random departure even if a lateral load is applied to the robot.

Recently, as the volume of logistics has increased significantly across industries, large logistics centers have been established in many regions, and various goods are being collected, sorted, and delivered at large logistics centers.

In large logistics centers, a large amount of goods are collected and sorted, so when collecting and sorting massive amounts of goods manually, it takes quite a lot of time to collect and sort them. In particular, when collecting and sorting goods manually, it is difficult to accurately collect and sort the goods. It has difficult problems.

Recently, large logistics centers are beginning to develop ways to quickly and accurately collect and sort goods using logistics robots.

An example of a logistics robot used in such a large logistics center is the technology described in Korean Patent Publication No. 10-2021-0111819 as shown in FIGS. 1 to 3, the technical features of which include a mobile chassis 10; A storage shelf (20) mounted on the mobile chassis (10) and including a plurality of layer plate assemblies (21) distributed at different heights and including layer plates for placing cargo; Includes a handling assembly 42, wherein the handling assembly 42 transports cargo on a single layer located at the same height as the handling assembly 42, or transports the cargo on a single layer located at the same height as the handling assembly 42. A handling device (40) for transporting on one positioned layer plate; And a lifting assembly 30 that drives the handling device 40 to lift and lower with respect to the storage shelf 20, so that the handling assembly 42 is positioned at the same height as one layer. .

However, the technology described in Korean Patent Publication No. 10-2021-0111819 has the advantage of enabling quick and accurate collection and sorting using a logistics robot, but the size of the storage shelf 20 and the handling device 40 is fixed. Therefore, there is a problem that only standard boxes can be processed and boxes larger than the standard cannot be processed.

Korean Patent Publication No. 10-2021-0111819 (published on September 12, 2021)

The present invention was devised to solve the above problems, and the purpose of the present invention is to move cargo and a side plate supporting the side in a pickup device that is installed on a logistics robot to move cargo to a shelf or retrieve cargo from a shelf. Since the length of the arm member can be adjusted, even cargo larger than the standard size can be picked up stably, and the width and length of the storage device provided at the rear of the lifting frame can also be adjusted, allowing the picked up non-standard cargo to be stored and moved stably. The goal is to provide a logistics robot that can

Another object of the present invention is to firmly fix the cargo in proportion to the applied force even when force is applied to the side of the cargo, such as when the logistics robot changes direction when the cargo stored in the storage device is smaller than the standard. , to provide a logistics robot that can reliably prevent cargo from leaving the storage device.

The present invention to solve these problems;

A moving device that moves within a logistics warehouse, a lifting frame installed on an upper part of the moving device, and a pickup device installed on the front of the lifting frame to be movable up and down to move cargo to a shelf or pick up cargo from a shelf; , characterized in that it is installed at the rear of the lifting frame and consists of a storage device in which cargo picked up through the pickup device is stored.

Here, the lifting frame consists of a pair of vertical frames installed on both sides of the upper part of the moving device to be movable in the width direction, and a horizontal frame installed to have a variable length at the top of the pair of vertical frames, The interior of the mobile device is characterized by a width adjustment unit that adjusts the spacing of the vertical frames according to the width of the cargo received from the width detection sensor installed in the pickup device.

In addition, the storage device includes a pair of auxiliary side plates installed on the lifting frame, a storage body located between the auxiliary side plates to support the lower part of the cargo, and a storage body that slides inside the storage body on the lower part of the auxiliary side plate. It is characterized in that it consists of an auxiliary lateral support bar that is provided to move and supports the storage body.

At this time, an auxiliary rear support member is installed on the upper part of the storage body to be able to slide back and forth, a support drive part that moves the auxiliary rear support member back and forth is installed inside the storage body, and the support drive part is installed in the pickup device. It is characterized by adjusting the degree of backward movement according to the length of the cargo detected by the length detection sensor.

Meanwhile, when a load cell installed on the front of the auxiliary rear support member detects a load, the auxiliary front support member installed to be rotatable up and down on the front of the storage body rotates upward to support the front of the cargo. do.

Here, the mobile device is further equipped with an acceleration sensor and a control unit, and the control unit calculates the horizontal force applied to the cargo through the horizontal acceleration detected from the acceleration sensor, and a load cell installed on the upper surface of the storage body. The load of the cargo detected through the load and the friction coefficient of the part in contact with the cargo are calculated to calculate the pressing force enough to offset the horizontal force applied to the cargo, and the auxiliary rear support member adjusts the force pressing the cargo. do.

According to the present invention of the above configuration, the length of the side plate supporting the side and the arm member for moving the cargo can be adjusted in a pickup device installed on a logistics robot to move cargo to a shelf or retrieve cargo from a shelf, thereby meeting the standard. Even larger cargo can be picked up stably, and the width and length of the storage device provided at the rear of the lifting frame can also be adjusted, which has the effect of stably storing and moving picked up non-standard cargo.

In addition, the present invention firmly fixes the cargo in proportion to the applied force even when force is applied to the side of the cargo, such as when the logistics robot changes direction when the cargo stored in the storage device is smaller than the standard, thereby ensuring that the cargo is It has the effect of reliably preventing it from leaving the storage device.

Figure 1 is a perspective view of a conventional logistics robot.
Figure 2 is a side conceptual diagram of the lifting assembly of a conventional logistics robot.
Figure 3 is an exploded perspective view of the handling device of the lifting assembly of a conventional logistics robot.
Figure 4 is a perspective view of a logistics robot according to the present invention.
Figure 5 is a perspective view of a pickup device for a logistics robot according to the present invention.
Figure 6 is a plan view of a pickup device for a logistics robot according to the present invention.
Figure 7 is a plan view of the pickup device of the logistics robot according to the present invention in a state in which it is rotated laterally.
Figure 8 is a plan view of the pickup device of the logistics robot according to the present invention in a modified state to pick up cargo.
Figure 9 is a conceptual diagram showing a rotating state of the pickup device of the logistics robot according to the present invention.
Figure 10 (a) is a perspective view of the support bracket of the logistics robot according to the present invention, and (a) is a front view.
Figure 11 is a perspective view of a storage device for a logistics robot according to the present invention.
Figure 12 is a plan view of a storage device for a logistics robot according to the present invention.
Figure 13 is a conceptual diagram of the auxiliary width adjustment unit of the logistics robot according to the present invention.
Figure 14 is a conceptual diagram showing the process of moving cargo of a logistics robot from a shelf or warehouse location to a storage device according to the present invention.
Figure 15 is a conceptual diagram showing the process of moving cargo of a logistics robot from a storage device to a shelf according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings. The same reference numerals are used for the same components in the drawings, and duplicate descriptions for the same components are omitted. Additionally, it should be understood that the present invention can be implemented in many different forms and is not limited to the described embodiments.

The present invention relates to a logistics robot provided in an automatic logistics warehouse, and as shown in FIGS. 4 to 13, the configuration includes a mobile device 100 that moves within the warehouse and a mobile device installed on top of the mobile device 100. A lifting frame 110 and a pickup device 200 installed on the front of the lifting frame 110 to be movable up and down, and a pickup device 200 installed on the rear of the lifting frame 110 and picking up through the pickup device 200. It consists of a storage device 300 where cargo is stored.

Here, although not shown in the drawing, the lifting frame 110 is provided with a lifting drive unit (not shown) for moving the pickup device 200 up and down. The pickup device moves up and down by the lifting drive unit. Cargo is moved to multi-level shelves or cargo is removed from the shelves.

At this time, since the lifting and lowering driving unit is already known, a separate description will be omitted.

Therefore, the logistics robot of the present invention moves cargo to the location of a designated shelf or moves cargo stored on a shelf to a designated location by a control signal transmitted from the control center.

In addition, the pickup device 200 includes a base member 210 that supports the lower part of the cargo, a side plate 220 located on both sides of the base member 210 to prevent the cargo from being separated from the pickup device 200, and It includes an arm member 230 installed on the side plate 220 to be able to move forward.

Here, a lateral support bar 225 is installed at the lower part of the side plate 220 to slide and move inside the base member 210, and the lateral support bar 225 moves inside the base member 210. A lateral drive unit (not shown) is installed, and the lateral drive unit may be formed of a pinion rotated by a motor on the inside of the base member 210 to correspond to the rack formed on the lateral support bar 225, but is not limited to this. The lateral support bar 225 is moved in various known configurations.

At this time, the front of the base member 210 is further equipped with a width detection sensor 215. The width detection sensor 215 is made of an ultrasonic sensor or a photo sensor to detect the cargo located in front of the pickup device 200. You sense the width.

Therefore, the lateral drive unit can move the lateral support bar 225 to adjust the position of the side plate 220 to correspond to the width of the cargo detected by the width detection sensor 215, so that even if the cargo is larger than the standard, it can be easily adjusted. You can pick it up.

Meanwhile, the arm member 230 is installed to be able to slide forward on the side plate 220. The arm member 230 is formed in multiple stages and moves forward to fit the length of not only standard cargo but also cargo larger than the standard. You can move to .

Here, among the arm members 230 formed in multiple stages, a front movable bar 232 formed in a bar shape is installed on the front of the arm member 230 located at the frontmost stage so as to be foldable up and down, and the arm member 230 located at the forefront A rear movable bar 234 formed in a bar shape is installed at the rear of the member 230 so that it can be folded up and down.

Therefore, when moving cargo of various sizes to the pickup device 100, the arm member 230 moves forward, and then the front moving bar 232 rotates to support the entire cargo (arm member 230). 230) moves rearward, and when moving the cargo accommodated in the pickup device 100 to the shelf, the rear support member 240, which will be described later, is moved forward to secure a space into which the rear moving bar 234 can be inserted. Then, while the rear moving bar 234 is rotated to support the rear of the cargo, the arm member 230 moves forward to move the cargo to the shelf.

At this time, the upper part of the rear support member 240 is formed to protrude forward, so that when the rear support member 240 moves completely forward, the rear of the cargo is located in front of the rear moving bar 234, The rear support member 240 moves rearward to secure space for the rear moving bar 234.

In addition, the front end of the arm member 230 is further provided with a length detection sensor 235 for detecting the length of the cargo. The length detection sensor 235 is one arm member ( It consists of a light emitting unit 237 installed on the other arm member 230 and a light receiving unit 238 installed on the other arm member 230.

Here, the side plate 220 is provided with an arm driving unit (not shown) that controls the movement of the arm member 230. Since the arm driving unit is already known in various configurations, a separate description will be omitted.

At this time, the arm driving unit is equipped with an encoder (not shown) to detect the degree to which the arm member 230 protrudes forward, so that the detection signal of the length detection sensor 235 and the degree of protrusion of the arm member 230 at the time are provided. Through this, the length of the cargo is detected.

That is, before the length detection sensor 235 comes into contact with the cargo, the light emitted from the light emitting part 237 is detected by the light receiving part 238, but when the length detection sensor 235 comes into contact with the cargo, the light emitted from the light emitting part 237 is blocked by the cargo. This prevents it from being detected by the light receiving unit 238, and when the length detection sensor 235 protrudes to the front of the cargo, it detects light again.

Therefore, the length of the cargo is detected through the change in length of the arm member 230 from the moment the light is blocked by the length detection sensor 235 to the moment the light is detected.

Meanwhile, a rear support member 240 is further provided at the rear of the base member 210 to support the rear of the cargo, and a lower portion of the rear support member 240 slides inside the base member 210. A rear support bar 245 is installed.

Here, a rear drive unit (not shown) is provided inside the base member 210 to move the rear support bar 245 back and forth, and the rear drive unit corresponds to a rack formed on the rear support bar 245. It may be composed of a pinion rotated by a motor inside the base member 210, but is not limited to this and moves the rear support bar 245 in various known configurations.

At this time, the rear drive unit positions the rear support member 240 so that the longitudinal center of the cargo is located at the longitudinal center of the base member 210, considering the length of the cargo detected by the length sensor 235. The position is adjusted taking into account the degree to which the rear support member 240 protrudes forward.

Therefore, when moving the cargo by the arm member 230, if the rear end of the cargo is moved until it contacts the rear support member 240, the longitudinal center of the cargo is at the longitudinal center of the base member 210. By being positioned, the center of gravity is aligned and the cargo can be supported stably.

In addition, the thickness of the base member 210 is thicker than the combined thickness of the lateral support bar 225 and the rear support bar 245, so that the lateral support bar 225 and the rear support bar 245 Make sure that they do not interfere with each other during operation.

In addition, a support bracket 120 is installed on the lifting frame 110 installed on the upper part of the moving device 100 to be movable up and down by the lifting driving unit, and the pickup device ( 200) is installed.

Here, the support bracket 120 is formed in a plate shape and includes a vertical portion 122 that moves up and down in contact with the lifting frame 110 and a bar-shaped horizontal portion that protrudes forward on both sides of the upper part of the vertical portion 122. It consists of (124) and is installed to penetrate forward and backward through the position adjustment member 250 installed at the lower part of the pickup device 200.

At this time, although not shown in the drawing, a rotation axis (not shown) is formed to protrude downward at the lower center of the pickup device 200, and the rotation axis is inserted into the center of the position adjustment member 250 and provided inside. It can be rotated by a rotation drive unit, and the inside of the position adjustment member 250 is composed of a pinion provided to correspond to a rack formed on the horizontal portion 124 of the support bracket 120 and a motor that rotates the pinion. A driving unit (not shown) is provided.

Therefore, when the pickup device 200 rotates, the position adjustment member 250 moves forward a certain distance so as not to collide with the lifting frame 110 located at the rear.

Additionally, as shown in FIG. 10, a lifting member 126 is provided on both sides of the vertical portion 122 and moves up and down by a lifting driving unit installed on the vertical frame 112 of the lifting frame 110, On the sides of the lifting member 126, variable bars 127 are provided to slide inside the vertical portion 122 and support the vertical portion 122.

At this time, a gear is formed on one side of the variable bar 127, and a circular center gear 128 meshed with the gear of the variable bar 127 is installed on the inside of the vertical portion 122 to change the variable bar on both sides. By keeping the movement range of the bar 127 the same, the position of the vertical portion 122 does not change and is located at the center between the pair of vertical portions 122.

Meanwhile, the moving device 100, which moves inside the automatic logistics warehouse, is equipped with wheels at the bottom and has a running part that controls running and steering on the inside and a control part that controls the moving path, so that the cargo received from outside can be moved. Depending on the location, cargo is moved to the shelf or cargo on the shelf is picked up and moved to a set location.

Here, an anti-shake device (not shown) is further provided inside the moving device 100. The anti-shake device is made of an electromagnet and the control unit controls the strength of the magnetic field generated from the electromagnet.

At this time, the floor plate of the automatic logistics warehouse is made of metal on which magnetic force acts, and the magnetic field generated by the electromagnet of the shake prevention device acts as an attractive force between it and the mobile device 100 to fix the logistics robot of the present invention so that it does not shake. do.

In other words, the logistics robot of the present invention can pick up and move not only standard cargo but also cargo larger than the standard. When the cargo is located at the top of a shelf or picks up or moves heavy cargo with a volume larger than the standard to the shelf, Because the center of gravity is located at the top, there is a problem that it can easily shake or fall.

However, in the present invention, the anti-shake device causes an attractive force to act between the bottom plate made of metal, so that the logistics robot can be stably supported so that it does not shake or fall even if the center of gravity moves upward.

Therefore, when the pickup device 200 moves upward to pick up cargo or moves upward to place cargo on the upper part of the shelf, the shaking prevention device can be activated to enable stable movement.

Additionally, the upper surface of the base member 210 constituting the pickup device 200 is provided with a sensor capable of detecting load, such as a load cell, to appropriately adjust the strength of the magnetic field generated from the shake prevention device according to the weight of the cargo. By adjusting it, excessive energy waste can be reduced.

Additionally, automatic logistics warehouses typically minimize the spacing between shelves on which cargo is loaded in order to save space. When only standard cargo is loaded, the spacing between all shelves is set to the same level so that the logistics robot carrying the cargo can move. formed at intervals.

However, in the present invention, since the shelves load not only standard cargo but also cargo larger than the standard, the spacing between the shelves on which non-standard cargo is loaded is formed to be wider than the shelves on which standard cargo is loaded.

Here, the ceiling of the automatic logistics warehouse is equipped with a camera to check the movement of each logistics robot, and a PGS system and a navigation system are installed in the control unit of each logistics robot, allowing the robot to easily move to a set location.

At this time, the control unit receives information about whether the loaded cargo is standard or non-standard, so in the case of non-standard cargo, when setting a moving route through the navigation system, the optimal movement route is determined by considering the aisle spacing between shelves. Set to move.

Meanwhile, the lifting frame 110 includes a pair of vertical frames 112 installed on both sides of the upper part of the moving device 100 and a horizontal frame installed at the top of the pair of vertical frames 112, as described above. It consists of (114), where the vertical frame 112 is installed to be movable along the width direction of the moving device 100, and the horizontal frame 114 is installed to have a variable length.

Here, a width adjustment unit (not shown) is provided inside the moving device 100 to adjust the width of the vertical frame 112, and the width adjustment unit is a width detection sensor installed in the pickup device 200 ( The spacing of the vertical frames 112 is adjusted according to the width of the cargo received from 215) so that the cargo moves between the vertical frames 112 and is loaded into the storage device 300 located at the rear.

At this time, as shown in FIG. 13, the horizontal frame 114 installed on the upper part of the vertical frame 112 is formed to have a variable length by sliding on both sides, and is screwed to a hollow bar on the inside, An auxiliary width adjustment unit 116 is provided to adjust the length of the horizontal frame 114 by a separately provided drive motor (not shown), thereby maintaining the same distance between the upper and lower parts of the vertical frame 112. .

In addition, the storage device 300 installed at the rear of the lifting frame 110 is provided in multiple stages, and includes a pair of auxiliary side plates 330 and the auxiliary side plate 330 installed on the lifting frame 110. It consists of a storage body 310 that is located between and supports the lower part of the cargo.

Here, a bar-shaped auxiliary lateral support bar 335 is installed at the lower part of the auxiliary side plate 330. The auxiliary lateral support bar 335 is connected to slide to the inside of the storage body 310 to store the storage body 310. It supports the body 310.

At this time, the auxiliary side support bars 335 respectively installed on a pair of auxiliary side plates 330 provided on both sides of the storage body 310 are positioned to be offset from each other, and on the inside of the storage body 310, As shown in Figure 12, a circular center gear 314 corresponding to the rack formed on one side of the auxiliary lateral support bar 335 is installed.

Therefore, when the spacing of the auxiliary side plates 330 changes as the spacing of the vertical frame 112 changes, and when the auxiliary side support bars 335 on both sides move, they are kept at the same distance by the center gear 314. By moving, the storage body 310 can be positioned at the center between the vertical frames 112 to stably support the cargo supplied from the pickup device 200.

Meanwhile, a cutout is formed along the longitudinal direction on the upper surface of the storage body 310, and an auxiliary rear support member 340 is installed to protrude upward through the cutout to enable sliding back and forth on the top of the storage body 310. do.

Here, the cut portion is formed to communicate with an installation groove formed inward at the rear of the storage body 310, and the sliding member 345 installed in the lower part of the auxiliary rear support member 340 is located inside the installation groove. It is inserted slidingly, and a support drive unit (not shown) is provided inside the storage body 310 to move the sliding member 345 back and forth.

At this time, the support drive unit may be comprised of a pinion engaged with a rack formed on one side or the lower surface of the sliding member 345 and a motor that rotates the pinion. The support drive unit may be configured to detect the length installed in the pickup device 200. The degree of backward movement is adjusted according to the length of the cargo detected by the sensor 235, so that the cargo can be stored stably.

In addition, an auxiliary front support member 320 is installed on the front of the storage body 310. The auxiliary front support member 320 is installed to be rotatable up and down, and the auxiliary front support member 320 is installed inside the storage body 310. A rotating part (not shown) consisting of a motor or the like to rotate the member 320 is installed.

Here, when cargo is not loaded in the storage device 300, the auxiliary front support member 320 stands by facing forward, and the cargo accommodated in the pickup device 200 is stored in the storage device 300. When moved to , the auxiliary front support member 320 rotates upward under the control of the rotating part to support the front of the cargo.

At this time, a load cell is installed on the front of the auxiliary rear support member 340. When the pickup device 200 moves cargo to the storage device 300, when the cargo comes into contact with the auxiliary rear support member 340, The load is sensed by the load cell to confirm the movement of the cargo, and accordingly, the auxiliary front support member 320 is rotated by controlling the rotating part.

Meanwhile, the mobile device 100 is further equipped with an acceleration sensor (not shown), and the control unit calculates the horizontal force applied to the cargo through the horizontal acceleration detected by the acceleration sensor.

Here, a load cell (not shown) is provided on the upper surface of the storage body 310 to measure the load of the loaded cargo. The control unit detects the load of the cargo through the load cell installed on the upper surface of the storage body 310. Through the friction coefficient of the part in contact with the load and the cargo, the pressing force sufficient to offset the horizontal force applied to the cargo is calculated.

At this time, it is natural that the friction coefficients of the upper surface of the storage body 310, the rear surface of the auxiliary front support member 320, and the front surface of the auxiliary rear support member are stored as constants in the control unit.

Therefore, the control unit calculates the lateral (horizontal direction) force applied to the cargo when the moving device 100 moves, and then moves the auxiliary rear support member 340 through the support drive unit with a pressing force sufficient to offset it. By adjusting the force to press the rear of the cargo, it is possible to reliably prevent the cargo from being released to the side.

To explain the process in which the above-described logistics robot of the present invention moves cargo received to the receiving location of an automatic logistics warehouse to a specific shelf, as shown in FIG. 14, after the moving device 100 moves to the receiving location, The width of the cargo is checked by the width detection sensor 215 of the pickup device 200, and if it is within the standard, the cargo is picked up by operating the arm member 230 without adjusting the width. If the width of the cargo is larger than the standard, After moving the side plate 220 to the side to match the width, the arm member 230 is moved forward. When moving the side plate 220, the vertical frame 112 constituting the lifting frame 110 ) intervals are also adjusted at the same time.

Here, the length of the cargo is checked through the length detection sensor 235 provided at the front end of the arm member 230, and the rear support member 240 is moved rearward to match the length, and then the arm member 230 ) is rotated to support the front of the cargo by rotating the front moving bar 232 installed on the front, and then the arm member 230 is moved to the inside of the side plate 220 to pick up the cargo.

At this time, the control unit provided in the moving device moves the pickup device 200 to correspond to the height of the lowest storage device 300 that is not loaded with cargo among the storage devices 300 provided in multiple stages, and then moves the pickup device 200 to After changing the direction of (300), the rear support member 240 is moved to secure space for the rear moving bar 234 at the rear of the cargo, and the rear moving bar formed on the arm member 230 ( 234) is rotated to support the rear of the cargo, and then the arm member 230 is moved forward to move the cargo contained in the pickup device 200 to the storage device 300. There may be multiple cargoes. In this case, each cargo is picked up and moved to each storage device 300.

And, as shown in FIG. 15, the process of moving cargo to a shelf is after the logistics robot moves to a designated shelf, the pickup device 200 picks up the cargo accommodated in each storage device 300, and then moves to the shelf. After being raised and lowered to the loading position, the front of the pickup device 200 is rotated to face the shelf direction, and the rear support member 240 is moved to create a space for the rear moving bar 234 at the rear of the cargo. is secured, the rear moving bar 234 formed on the arm member 230 is rotated to support the rear of the cargo, and then the arm member 230 is moved forward so that the cargo is seated on the shelf.

Therefore, through the above-described process, even non-standard cargo can be easily moved to the shelf, and when cargo is picked up from the shelf, the above-mentioned process can be reversed to pick up the cargo and move it to the shipping location.

Meanwhile, although not shown in the drawing, each storage device 300 installed in multiple stages at the rear of the lifting frame 110 has a guide rail formed on the inner surface of the vertical frame 112 at the end of the auxiliary side plate 330. Elevating devices (not shown) are provided for individual ascending and descending along (not shown).

Here, the width detection sensor 215 installed in the front of the pickup device 200 can detect not only the width but also the height of the cargo. If the height of the cargo detected by the width detection sensor 215 is greater than the standard, In this case, the storage devices 300 located at the top of the storage device 300 for loading the cargo are moved upward to secure space for loading the cargo.

Therefore, even if the width, length, and height are all larger than standard cargo, it is possible to stably accommodate multiple cargoes and move them to the shelf at once, or pick up multiple cargoes from the shelf.

Although the preferred embodiments of the present invention have been described above, the scope of the rights of the present invention is not limited thereto, and the scope of the rights of the present invention extends to the scope substantially equivalent to the embodiments of the present invention. Various modifications can be made by those skilled in the art without departing from the above.

The present invention relates to a logistics robot, and more specifically, even if the size of the cargo is larger than the standard, it can be easily accommodated on a shelf or taken out from the shelf and stored in a storage device, as well as cargo stored in the storage device of the logistics robot while moving. This relates to a logistics robot that can prevent random departure even if a lateral load is applied to the robot.

100: moving device 110: lifting frame
120: support bracket 200: pickup device
210: base member 220: side plate
230: arm member 240: rear support member
250: Position adjustment member 300: Storage device
310: storage body 320: auxiliary front support member
330: Auxiliary side plate 340: Auxiliary rear support member

Claims (6)

A mobile device that moves within a logistics warehouse,
A lifting frame installed on the upper part of the mobile device,
A pickup device installed on the front of the lifting frame to be movable up and down to move cargo to a shelf or pick up cargo from a shelf;
It consists of a storage device installed at the rear of the lifting frame to store cargo picked up through the pickup device,
The lifting frame includes a pair of vertical frames installed on both sides of the upper part of the moving device to be movable in the width direction,
It consists of a horizontal frame installed to have a variable length on top of the pair of vertical frames,
A logistics robot, characterized in that the interior of the mobile device is provided with a width adjustment unit that adjusts the spacing of the vertical frames according to the width of the cargo received from the width detection sensor installed in the pickup device.
delete According to paragraph 1,
The storage device includes a pair of auxiliary side plates installed on the lifting frame,
A storage body located between the auxiliary side plates to support the lower part of the cargo,
A logistics robot, characterized in that the auxiliary side support bar is provided at a lower part of the auxiliary side plate to slide toward the inside of the storage body and supports the storage body.
According to paragraph 3,
An auxiliary rear support member is installed on the upper part of the storage body so that it can slide back and forth,
A support drive unit is installed inside the storage body to move the auxiliary rear support member back and forth,
A logistics robot, wherein the support drive unit adjusts the degree of backward movement according to the length of the cargo detected by a length detection sensor installed in the pickup device.
According to clause 4,
When a load cell installed on the front of the auxiliary rear support member detects a load, the auxiliary front support member rotatable up and down on the front of the storage body rotates upward to support the front of the cargo. robot.
According to clause 5,
The mobile device is further equipped with an acceleration sensor and a control unit,
The control unit calculates the horizontal force applied to the cargo through the horizontal acceleration detected by the acceleration sensor,
The auxiliary rear support member calculates the pressing force sufficient to offset the horizontal force applied to the cargo through the load of the cargo detected through the load cell installed on the upper surface of the storage body and the friction coefficient of the part in contact with the cargo. A logistics robot characterized by controlling the pressing force.

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