Board transport robot

Abstract

The plate delivery and transportation robot provided by the present invention comprises a body and a driving wheel group, wherein the driving wheel group is arranged at the bottom of the body; the body has a bearing platform, wherein at least two limiting structures are arranged on the bearing platform, wherein the limiting structures have a first limiting surface and a second limiting surface, wherein the first limiting surface and the second limiting surface are perpendicular to each other, and the first limiting surface and the second limiting surface are both oriented in a horizontal direction; a shelf rack placement position is formed on the bearing platform, wherein the two limiting structures are respectively arranged at the diagonal positions of the shelf rack placement position, wherein the first limiting surface and the second limiting surface are oriented toward the shelf rack placement position; the plate delivery and transportation robot also comprises a pushing device, wherein the pushing device comprises a pushing member, and the pushing member can be moved along a first horizontal direction between the opposite ends of the shelf rack placement position. The present invention has the characteristics of targeting at plate transportation, reducing costs and improving transportation effects.

Description

Technical Field

[0001] The present invention relates to the technical field of material transport equipment, and in particular to a plate transport robot. Background Art

[0002] There is an AGV robot (automatic navigation transport robot) for transporting plates, which includes a body, a driving wheel group and a transport device. The body includes a bottom and sides extending upward from opposite sides of the bottom. The driving wheel group is arranged at the bottom. A transport space that runs through the front and back is formed between the two sides. Multiple transport devices are arranged in the transport space from top to bottom. The transport device is a conveyor belt device or a conveyor roller device. Each transport device is used to introduce, support and push out a plate such as a PCB board.

[0003] The problem with the existing AGV robots of this type is that each plate requires a separate transport device, the robot is expensive, and the transport device takes up a large space. Under the condition of a certain volume, the AGV robot cannot transport more plates at the same time; although the plates are placed on the transport device and are effectively supported, they are not positioned in other ways, which affects the position accuracy of the plates during transportation and delivery, affects subsequent transportation, and may damage the plates. Summary of the invention

[0004] The object of the present invention is to provide a plate transport robot which can reduce the cost and improve the transport effect for plate transport.

[0005] The plate sending and transporting robot provided by the present invention includes a body and a driving wheel group, and the driving wheel group is arranged at the bottom of the body; the body has a bearing platform, and at least two limiting structures are arranged on the bearing platform, and the limiting structure has a first limiting surface and a second limiting surface, the first limiting surface and the second limiting surface are perpendicular to each other, and the first limiting surface and the second limiting surface are both oriented in the horizontal direction; a shelf rack placement position is formed on the bearing platform, and the two limiting structures are respectively arranged at the diagonals of the shelf rack placement position, and the first limiting surface and the second limiting surface are oriented towards the shelf rack placement position; the plate sending and transporting robot also includes a pushing device, and the pushing device includes a pushing member, and the pushing member can be moved along the first horizontal direction between the opposite ends of the shelf rack placement position.

[0006] As can be seen from the above scheme, the shelf rack placement position is used to detachably place the shelf rack, and the shelf rack is effectively positioned by multiple limit structures; and multiple plates are placed on the shelf rack from bottom to top, and a plate placement space is formed in the middle of the shelf rack for the pusher to pass through, and the pusher can push out all the plates at one time. More plates can be placed on the shelf rack to improve the transportation efficiency. One pusher cooperates with all the plates, reducing the production cost of the robot and improving the synchronization rate of the plate delivery. The plates are positioned from the left and right sides by the shelf rack, and the plates will not be offset in the left and right directions when they are transported and pushed out, ensuring the position accuracy of the plates and improving the transportation effect.

[0007] A further solution is that the pallet transport robot also includes a shelf rack, which is detachably arranged in a shelf rack placement position, and the shelf rack is limitedly matched with a plurality of limiting structures.

[0008] As can be seen from the above, plates of different sizes can be loaded by different shelf racks, and the plate-feeding and transporting robot and the shelf racks can be detachably matched, thereby improving the applicability of the plate-feeding and transporting robot.

[0009] A further solution is that the machine body has an installation space recessed in the carrying platform; the pushing device includes a driving unit, a telescopic mechanism and a pushing member connected in sequence, the telescopic mechanism is arranged in the installation space, and the pushing member extends upward from the installation space to the shelf mounting position.

[0010] As can be seen from the above, the hidden design of the pushing device can ensure the integrity of the load-bearing platform, reduce the design difficulty of the shelf rack, and effectively avoid interference and collision between the pushing device and the shelf rack or the plate.

[0011] A further solution is that the telescopic mechanism includes a first slide rail, a first slider, a second slide rail, a second slider, an extension plate and a belt drive assembly; the belt drive assembly includes a first transmission wheel, a second transmission wheel and a transmission belt, and the transmission belt is arranged between the first transmission wheel and the second transmission wheel; the body has a base plate located at the bottom of the installation space, the first slide rail is fixed on the base plate and is arranged along a first horizontal direction, the first slider is slidably mounted on the first slide rail, and the extension plate is fixedly connected to the first slider; the second slide rail is fixed on the extension plate and is arranged along the first horizontal direction, the second slider is slidably mounted on the second slide rail, and the pushing member is fixedly connected to the second slider; the first transmission wheel and the second transmission wheel are both arranged on the extension plate, and the extension plate is fixedly connected to the transmission belt.

[0012] As can be seen from the above, this arrangement enables the pushing member to translate and move outside the machine body, thereby ensuring that the pushing member can completely push the plate out of the shelf rack.

[0013] A further solution is that the pushing device can move along a second horizontal direction, which is perpendicular to the first horizontal direction.

[0014] It can be seen from the above that when the transported plates are of different sizes, the centerline position of the plates changes in the second horizontal direction. At this time, the position of the pushing member in the second horizontal direction can be adjusted so that the pushing member is always aligned with the centerline of the plates, ensuring that when the plates are pushed, the plates will not deviate sideways or even get stuck due to unbalanced force.

[0015] A further solution is that a transverse movement device is provided in the machine body, and the transverse movement device includes a third slide rail and a third slider; the third slide rail is fixedly arranged in the machine body along the second horizontal direction, the third slider is slidably mounted on the third slide rail, and the base plate is fixed on the third slider.

[0016] As can be seen from the above, the transverse movement device is used to achieve position adjustment of the pushing member in the second horizontal direction.

[0017] A further solution is that the machine body has two side retaining walls located on opposite sides of the installation space; the pushing device has a protection frame, the protection frame is installed on the bottom plate, and the telescopic mechanism is located in the protection frame; the protection frame and the side retaining wall cooperate in the second horizontal direction upper limit.

[0018] As can be seen from the above, the side baffle wall and the protection frame can effectively protect the telescopic mechanism and the interior of the machine body.

[0019] A further solution is that the driving unit includes a linear cylinder and a connecting piece; the base plate has an avoidance through hole penetrating in the vertical direction, and the avoidance through hole extends into a long shape along the first horizontal direction; the linear cylinder is fixed to the lower side of the base plate, the lower part of the connecting piece is fixedly connected to the piston rod of the linear cylinder, the connecting piece passes through the avoidance through hole from bottom to top, and the upper part of the connecting piece is fixedly connected to the extension plate.

[0020] As can be seen from the above, this arrangement allows the linear cylinder to be housed inside the machine body, thereby providing dust and water protection for the linear cylinder.

[0021] A further solution is that the limiting structure includes a first limiting member and a second limiting member which are independent of each other, the first limiting surface is located on the first limiting member, and the second limiting surface is located on the second limiting member.

[0022] As can be seen from the above, this setting enables the limiting structure to have independent adjustment capabilities in two horizontal directions that are perpendicular to each other. When the limiting position in one direction needs to be adjusted, the limiting member corresponding to that direction is adjusted or replaced, thereby achieving more flexible adjustment and more effective limiting.

[0023] A further solution is that the normal direction of the first limiting surface is the first horizontal direction; the plate transport robot also includes a first bolt and a second bolt; a first elongated mounting hole is provided on the first limiting member, the first elongated mounting hole extends into a long shape in the first horizontal direction, and the first bolt passes through the first elongated mounting hole and is fixedly connected to the body; a second elongated mounting hole is provided on the second limiting member, the second elongated mounting hole extends into a long shape perpendicular to the first horizontal direction, and the second bolt passes through the second elongated mounting hole and is fixedly connected to the body.

[0024] As can be seen from the above, this arrangement enables the first limiting member or the second limiting member to be adjusted in position quickly and effectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of an embodiment of a plate-delivering and transporting robot of the present invention.

[0026] Figure 2 This is a structural diagram of a hidden shelf rack in an embodiment of a pallet transport robot according to the present invention.

[0027] Figure 3 This is a structural diagram of a plate-delivering and transporting robot embodiment of the present invention with a partially hidden body shell.

[0028] Figure 4 for Figure 2 A partial enlarged view of point A in the middle.

[0029] Figure 5 This is a structural diagram of the shelf rack from the first perspective in an embodiment of the plate delivery and transportation robot of the present invention.

[0030] Figure 6 This is a structural diagram of the shelf rack from a second perspective in an embodiment of the plate delivery and transportation robot of the present invention.

[0031] Figure 7 This is a structural diagram of the shelf rack from a third perspective in an embodiment of the plate delivery and transportation robot of the present invention.

[0032] Figure 8 Schematic diagram of the matching relationship between the top wall and the top slider in the embodiment of the plate transport robot of the present invention. DETAILED DESCRIPTION

[0033] See also Figure 1 and Figure 2 , Figure 1 This is a structural diagram of an embodiment of a pallet transport robot according to the present invention. Figure 2The structural diagram of the shelf rack hidden in the embodiment of the plate delivery and transportation robot of the present invention. A unified rectangular space coordinate system is established in each of the drawings, wherein the x-axis direction refers to the first horizontal direction, the x-axis direction refers to the second horizontal direction, and the z-axis direction refers to the height direction. The plate delivery and transportation robot includes a body 1, a driving wheel group 19, a limiting structure 2, a limiting structure 3, a pushing device 5 and a shelf rack 6. The driving wheel group 19 is fixedly installed at the bottom of the body 1, and the top of the body 1 has a bearing platform 10. Two limiting structures 2 and two limiting structures 3 are fastened to the bearing platform 10 by bolts, and the surrounding area between the two limiting structures 2 and the two limiting structures 3 forms a shelf rack placement position 100. The pushing device 5 includes a driving unit 51 ( Figure 4 ), a telescopic mechanism 52 and a pusher 53, the driving unit 51 and the telescopic mechanism 52 are both mounted on the machine body 1 and are located below the carrying platform 10, the pusher 53 extends from bottom to top into the partition placement position 100, and the pusher 53 can move along the first horizontal direction between the opposite ends of the shelf placement position 100. The shelf 6 is detachably placed on the carrying platform 10 and is limited by the limiting structures 2 and 3.

[0034] Combination Figures 1 to 3 , Figure 3 This is a structural diagram of a part of the housing of the robot for transporting pallets according to an embodiment of the present invention. The body 1 has an installation space 110 recessed in the carrying platform 10. The installation space 110 extends in a first horizontal direction into an elongated shape. The telescopic mechanism 52 is disposed in the installation space 110. In the height direction, the installation space 110 is separated from the interior of the body 1 by a bottom plate 13, and the drive unit 51 is fixed below the bottom plate 13.

[0035] The body 1 has an outer shell 12 and a horizontal plate 14 fixed on the inner wall surface of the outer shell 12, and the two horizontal plates 14 are respectively arranged at the front and rear ends in the first horizontal direction; a transverse movement device 15 is arranged on the horizontal plate 14, and the transverse movement device 15 includes a third slide rail 151 and a third slider 152. The two third slide rails 151 are respectively fixed on a horizontal plate 14 along the second horizontal direction, and the two third sliders 152 are both fixed on the bottom of the base plate 13. The third slider 152 is slidably installed on the third slide rail 151 along the second horizontal direction.

[0036] The telescopic mechanism 52 includes a first slide rail 521, a first slider 522, a second slide rail 524, a second slider 525, an extension plate 523 and a belt transmission assembly, wherein the belt transmission assembly includes a first transmission wheel 541, a second transmission wheel 542 and a transmission belt 543, wherein the transmission belt 543 is arranged between the first transmission wheel 541 and the second transmission wheel 542. The first slide rail 521 is fixed on the bottom plate 13 and arranged along the first horizontal direction, the first slider 522 is slidably mounted on the first slide rail 521, and the extension plate 523 is fixedly connected to the first slider 522; the second slide rail 524 is fixed on the extension plate 523 and arranged along the first horizontal direction, the second slider 525 is slidably mounted on the second slide rail 524, and the pusher 53 is fixedly connected to the second slider 525; the first transmission wheel 541 and the second transmission wheel 542 are both arranged on the extension plate 523, and the extension plate 523 is fixedly connected to the transmission belt 543.

[0037] The driving unit 51 includes a linear cylinder 511 and a connecting member 512; the base plate 13 has an avoidance through hole 131 penetrating in the vertical direction, and the avoidance through hole 131 extends into a long shape along the first horizontal direction; the linear cylinder 511 is fixed to the lower side of the base plate 13, and the lower part of the connecting member 512 is fixedly connected to the piston rod of the linear cylinder 511, and the connecting member 512 passes through the avoidance through hole 131 from bottom to top, and the upper part of the connecting member 512 is fixedly connected to the extension plate 523.

[0038] The pusher 53 is a long plate member. When driven by the linear cylinder 511, the pusher 53 can move along the first horizontal direction, and the transverse movement device 15 can realize the movement of the entire pusher device 5 along the second horizontal direction. Figure 2 The body 1 has two side retaining walls 111 located on opposite sides of the installation space 110; the pushing device 5 also includes a protection frame 50, the protection frame 50 is installed on the bottom plate 13, the telescopic mechanism 52 is located in the protection frame 50, and the protection frame 50 cooperates with the side retaining wall 111 in the second horizontal direction.

[0039] Combination Figure 2 and Figure 4 , Figure 4 for Figure 2A partial enlarged view of the position A in the middle. The limiting structure 2 includes a first limiting member 21 and a second limiting member 22 which are independent of each other. The first limiting member 21 has a first limiting surface 210, and the second limiting member 22 has a second limiting surface 220. The first limiting member 21 is provided with a first elongated mounting hole 211, and the first elongated mounting hole 211 extends into an elongated shape in the first horizontal direction. The second limiting member 22 is provided with a second elongated mounting hole 221, and the second elongated mounting hole 221 extends into an elongated shape perpendicular to the first horizontal direction. The plate delivery transport robot also includes a first bolt and a second bolt (not shown in the figure), the first bolt passes through the first elongated mounting hole 211 and is fixedly connected to the body 1; the second bolt passes through the second elongated mounting hole and is fixedly connected to the body 1. At this time, the normal direction of the first limiting surface 210 is the first horizontal direction, and the first limiting surface 210 and the second limiting surface 220 are perpendicular to each other, and the first limiting surface 210 and the second limiting surface 220 are both oriented in the horizontal direction.

[0040] Unlike the limiting structure 2, the limiting structure 3 is an integrated part, and also has a first limiting surface and a second limiting surface that are perpendicular to each other, and the limiting structure 3 is only provided with a third elongated mounting hole 31 extending along the second horizontal direction, and the bolt passes through the third elongated mounting hole 31 to be fixedly connected to the body 1. Since the limiting structure 2 can realize the position adjustment in the first horizontal direction, the limiting structure 3 does not need the position adjustment function in the first horizontal direction, but in the second horizontal direction, the limiting structure 2 and the limiting structure 3 need to be adjusted synchronously, so the limiting structure 3 needs to have the adjustment capability in the second horizontal direction. Combined with Figure 1 The shelf rack 6 is detachably placed in the shelf rack placement position 100, and the two limiting structures 2 and the two limiting structures 3 limit the shelf rack 6 from the first horizontal direction and the second horizontal direction from four corners.

[0041] See also Figures 5 to 7 , Figure 5 , Figure 6 and Figure 7 The structural diagrams of the shelf rack in the first, second and third perspectives of the plate delivery and transportation robot embodiment of the present invention are respectively shown. The shelf rack includes a frame 61, two plate holding mechanisms 62 arranged opposite to each other, a connecting plate 63, a bottom wall 64, a top wall 65, a bottom adjustment device 71, a top adjustment device 72 and a connecting rod 73. In the first horizontal direction, the frame 61 has a "door" shape, one plate holding mechanism 62 is fixed to one side of the frame 61 by bolts, and the other plate holding mechanism 62 is movably mounted on the frame 61 along the second horizontal direction through the connecting plate 63, the bottom wall 64, the top wall 65, the bottom adjustment device 71, the top adjustment device 72 and the connecting rod 73.

[0042] First, the plate holding mechanism 62 is a plate holding plate, and the plate holding mechanism 62 is provided with a plurality of plate placement grooves 620 that are recessed along the second horizontal direction. The plate placement grooves 620 are through grooves that extend along the first horizontal direction. The plurality of plate placement grooves 620 are arranged from top to bottom. The plate holding mechanism 62 has a support surface 621 that faces upward and toward the plate placement grooves 620. In the first horizontal direction, both ends of the extension of the support surface 621 are provided with guide inclined portions 622. Figure 1 A plate placement space 600 is formed between the two relatively arranged plate holding mechanisms 62. When the plate 9 needs to be transported, since the plate placement groove 620 is a through groove, the plate 9 can be inserted into the plate placement groove 620 along the first horizontal direction. The two sides of the plate 9 are respectively located in the plate placement groove 620 and supported on the supporting surface 621.

[0043] The bottom wall 64 is fixed to the bottom of the frame 61, and two bottom adjustment devices 71 are arranged on the bottom wall 64. The bottom adjustment device 71 includes a bottom rail 711 and a bottom slider 712. The bottom rail 711 is arranged on the bottom wall 64 along the second horizontal direction, and the bottom slider 712 is arranged on the bottom rail 711.

[0044] The top wall 65 is fixed to the top of the frame 61, and two top adjustment devices 72 are arranged on the top wall 65. The top adjustment device 72 includes a top rail 721 and a top slider 722. The top rail 721 is arranged on the top wall 65 along the second horizontal direction, and the top slider 722 is arranged on the top rail 721. The connecting rod 73 is connected between the bottom slider 712 and the top slider 722, and the connecting rod 73 extends along the height direction. The two bottom sliders 712 and the two top sliders 722 are fixedly connected to the connecting plate 63, and the plate holding mechanism 62 is fixedly installed on the connecting plate 63. This setting realizes that the spacing between the two plate holding mechanisms 62 in the second horizontal direction is adjustable.

[0045] Recombination Figure 8 , Figure 8 Schematic diagram of the matching relationship between the top wall and the top slider in the embodiment of the plate delivery transport robot of the present invention. The top wall 65 is provided with a top elongated hole 650, and the top elongated hole 650 extends into an elongated shape along the second horizontal direction. A top buckle column 723 extends from the top slider 722, and the top buckle column 723 has a top buckle section 724 and a top limit section 725 arranged in sequence, and the outer diameter of the top limit section 725 is greater than the outer diameter of the top buckle section 724, and the top buckle section 724 is located in the top elongated hole 650, and the top limit section 725 is limitedly matched with the top wall 65. In the second horizontal direction, the extended end of the top elongated hole 650 has a top release position 651, and the inner diameter d2 of the top release position 651 is greater than the outer diameter d1 of the top limit section 725.

[0046] Similarly, the bottom wall 64 is provided with a bottom elongated hole 640, which extends into an elongated shape along the second horizontal direction, and a bottom buckling column 713 extends from the bottom slider 712. The bottom buckling column 713 has a bottom buckling section and a bottom limiting section arranged in sequence, the outer diameter of the bottom limiting section is larger than the outer diameter of the bottom buckling section, the bottom buckling section is located in the bottom elongated hole 640, and the bottom limiting section is limitedly matched with the bottom wall 64. In the second horizontal direction, the extended end of the bottom elongated hole 640 has a bottom release position 641, and the inner diameter of the bottom release position 641 is larger than the outer diameter of the bottom limiting section.

[0047] Taking the cooperation between the top wall 65 and the top slider 722 as an example, when the top snap-fitting column 723 located in the top elongated hole 650 moves to the top release position 651 at the extreme position, since the inner diameter d2 of the top release position 651 is greater than the outer diameter d1 of the top limiting section 725, the top snap-fitting column 723 can be disengaged from the top elongated hole 650 at this time, thereby realizing the disassembly between the top wall 65 and the top slider 722.

[0048] Combination Figure 1 , Figure 2 and Figure 5 In the first horizontal direction, the two opposite ends of the frame body 61 respectively form an entrance 601 and an exit 602 of the plate placement space 600; the bottom of the frame body 61 forms a connecting port 603 connected to the plate placement space 600, and the connecting port 603 extends between the entrance 601 and the exit 602. When the shelf rack 6 is placed in the shelf rack placement position 100, the connecting port 603 becomes an escape port for the pusher 53 to enter and move in the plate placement space 600. The pusher 53 can enter the plate placement space 600 from the entrance 601 along the first horizontal direction, abut against the ends of all the plates 9, and push all the plates 9 out from the exit 602.

[0049] More plates 9 can be placed on the shelf 6 to improve the transportation efficiency. A pushing member 53 cooperates with all the plates 9 to reduce the production cost of the robot and improve the delivery synchronization rate of the plates 9. The plates 9 are positioned from the left and right sides by the shelf 6. The plates 9 will not be offset to the left and right when being transported and pushed out, thereby ensuring the position accuracy of the plates 9 and improving the transportation effect.

[0050] In addition, since the spacing between the two plate holding mechanisms 62 is adjustable, the shelf rack 6 is suitable for transporting various plates 9 of different sizes. In addition, multiple plates 9 can be held between the two plate holding mechanisms 62 at the same time. After the shelf rack 6 is placed on the body 1 of the plate sending and transporting robot, the plate sending and transporting robot has a pushing member 53 that can move in a straight line. The pushing member 53 can push out multiple plates on the shelf rack that are held between the two plate holding mechanisms 62 together, thereby improving the transportation efficiency. The pushing of all plates 9 can be completed by only one pushing member 53, so it has the characteristic of low cost.

[0051] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pallet transport robot, comprising a body and a driving wheel set, wherein the driving wheel set is arranged at the bottom of the body; Features: The machine body has a bearing platform, and at least two limiting structures are arranged on the bearing platform. The limiting structure has a first limiting surface and a second limiting surface, and the first limiting surface and the second limiting surface are perpendicular to each other, and the first limiting surface and the second limiting surface are both oriented in the horizontal direction; A shelf placement position is formed on the bearing platform, and the two limiting structures are respectively arranged at the diagonals of the shelf placement position, and the first limiting surface and the second limiting surface face the shelf placement position; The plate transport robot further comprises a pushing device, wherein the pushing device comprises a pushing member, and the pushing member can move along a first horizontal direction between two opposite ends of the shelf mounting position; The plate delivery and transport robot further comprises a shelf rack, which is detachably arranged in the shelf rack placement position, and the shelf rack is limitedly matched with a plurality of the limiting structures; The machine body has an installation space recessed in the carrying platform; The pushing device comprises a driving unit, a telescopic mechanism and the pushing member connected in sequence, the telescopic mechanism is arranged in the installation space, and the pushing member extends upward from the installation space to the shelf mounting position; The telescopic mechanism comprises a first slide rail, a first slider, a second slide rail, a second slider, an extension plate and a belt transmission assembly; The belt drive assembly comprises a first transmission wheel, a second transmission wheel and a transmission belt, wherein the transmission belt is arranged between the first transmission wheel and the second transmission wheel; The machine body has a bottom plate located at the bottom of the installation space, the first slide rail is fixed on the bottom plate and arranged along a first horizontal direction, the first slider is slidably mounted on the first slide rail, and the extension plate is fixedly connected to the first slider; The second slide rail is fixed on the extension plate and arranged along the first horizontal direction, the second slider is slidably mounted on the second slide rail, and the pusher is fixedly connected to the second slider; The first transmission wheel and the second transmission wheel are both arranged on the extension plate, and the extension plate is fixedly connected to the transmission belt; The pushing device can move along a second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction; The driving unit comprises a linear cylinder and a connecting piece; The bottom plate has an avoidance through hole penetrating in the vertical direction, and the avoidance through hole extends in the first horizontal direction into an elongated shape; The linear cylinder is fixed on the lower side of the base plate, the lower portion of the connecting member is fixedly connected to the piston rod of the linear cylinder, the connecting member passes through the avoidance through hole from bottom to top, and the upper portion of the connecting member is fixedly connected to the extension plate.

2. The plate transport robot according to claim 1, characterized in that: A transverse movement device is provided in the machine body, and the transverse movement device includes a third slide rail and a third slide block; The third slide rail is fixedly arranged in the machine body along the second horizontal direction, the third slider is slidably mounted on the third slide rail, and the bottom plate is fixed on the third slider.

3. The plate transport robot according to claim 2, characterized in that: The machine body has two side retaining walls respectively located on opposite sides of the installation space; The pushing device has a protection frame, the protection frame is mounted on the bottom plate, and the telescopic mechanism is located in the protection frame; The protection frame cooperates with the side retaining wall in limiting position in the second horizontal direction.

4. The plate transport robot according to claim 1, characterized in that: The limiting structure includes a first limiting member and a second limiting member that are independent of each other. The first limiting surface is located on the first limiting member, and the second limiting surface is located on the second limiting member.

5. The plate transport robot according to claim 4, characterized in that: The normal direction of the first limiting surface is the first horizontal direction; The plate-feeding transport robot further includes a first bolt and a second bolt; The first position-limiting member is provided with a first elongated mounting hole, the first elongated mounting hole extends in the first horizontal direction to form an elongated shape, and the first bolt passes through the first elongated mounting hole and is fixedly connected to the machine body; The second position-limiting member is provided with a second elongated mounting hole, which extends perpendicularly to the first horizontal direction into an elongated shape, and the second bolt passes through the second elongated mounting hole and is fixedly connected to the machine body.

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