A lifting conveying frame and an AGV having the same

Abstract

The present invention discloses a lifting and conveying frame and an AGV having the lifting and conveying frame. The lifting and conveying frame comprises: a bottom plate and a lifting frame vertically arranged on both sides of the bottom plate, lifting guide rails are arranged on two opposite sides of the lifting frame, and the lifting guide rails are arranged relatively parallel at both ends of the lifting frame, and a lifting and conveying platform is connected and arranged between the two lifting frames, and the lifting and conveying platform cooperates with the lifting guide rails on both sides through connecting plates arranged on both sides; lifting screw rods are arranged on the sides of the two lifting frames that are away from each other, and the lifting screw rods are connected to the connecting plates, and the lifting screw rods are lifted and lowered to drive the lifting and conveying platform to slide along the lifting guide rails. A double hinge is connected between the connecting plate and the lifting and conveying platform, and when the lifting guide rail is offset, the double hinge will tilt and unfold under the influence of the force of the lifting screw rod, so that the lifting and conveying platform tilts and shakes, and the tilting avoids jamming during the lifting process, thereby realizing a self-adjusting lifting system.

Description

Technical Field

[0001] The present invention relates to the field of AGV material handling, and in particular to a lifting and conveying frame and an AGV having the lifting and conveying frame. Background Art

[0002] For traditional lifting AGVs, most of them are complex in structure, with low load-bearing capacity and insufficient motion coordination. Generally, lifting AGVs use multiple motion and guide systems, and it is difficult to ensure the parallelism of the motion and guide systems during assembly. Therefore, it is difficult to solve the impact of the lifting platform overturning on the motion and guide system jamming during operation, and even cause excessive lifting and conveying resistance, leading to overload alarm or damage to the power source. If you blindly pursue the parallel accuracy of the motion and guide systems, it will lead to a complex motion structure, and the assembly and processing must ensure high precision, resulting in a significant increase in costs.

[0003] Therefore, how to provide an AGV lifting and conveying frame that can realize adaptive adjustment of the guide system stuck is a problem that technical personnel in this field need to solve. Summary of the invention

[0004] The object of the present invention is to provide a lifting and conveying frame capable of adaptively adjusting motion guidance errors and an AGV having the lifting and conveying frame.

[0005] To achieve the above object, the present invention provides a lifting conveyor frame, comprising: a bottom plate and a lifting frame fixed on both sides of the bottom plate, two opposite sides of the lifting frame are provided with lifting guide rails, and the lifting guide rails are relatively parallelly arranged at both ends of the lifting frame;

[0006] A lifting and conveying platform is connected between the two lifting frames; connecting plates are arranged on both sides of the lifting and conveying platform, and lifting screw rods are arranged on the sides of the two lifting frames which are away from each other, and the lifting screw rods are connected to the sides of the connecting plates, and the lifting screw rods are used to drive the lifting and conveying platform to slide along the lifting track;

[0007] The connecting plate is connected to the lifting and conveying platform by a double hinge, which is used to unfold the lifting and conveying platform to tilt relative to the horizontal direction.

[0008] Optionally, the double hinged parts and the lifting and conveying platform are connected to the lifting bracket, and liftable baffles are provided at both ends of the outer side of the lifting bracket.

[0009] Optionally, a plurality of rollers evenly placed in the horizontal direction are sandwiched between the connecting plates.

[0010] Optionally, both end surfaces of the lifting frame are provided with hollow grooves along the vertical direction, and the double hinged parts are tiltably movable in the hollow grooves.

[0011] Optionally, a nut connection seat is connected between the lifting screw and the connecting plate to increase stability.

[0012] Optionally, a partition is connected between the lifting rails of the lifting frame on the same side to increase stability.

[0013] Optionally, a screw rod mounting seat is provided at the top end of the partition plate, extending in a direction away from the lifting and conveying platform, and the screw rod mounting seat is used for mounting the top end of the lifting screw rod.

[0014] Optionally, guide wheels for cooperating with the lifting guide rails are provided on the connecting plate.

[0015] The present invention further provides an AGV, comprising a mobile chassis and any one of the above-mentioned lifting and conveying frames, wherein the lifting and conveying frame is installed on the top surface of the mobile chassis.

[0016] Compared with the above background technology, the present invention includes: a base plate and a lifting frame vertically arranged on both sides of the base plate, lifting guide rails are arranged on two opposite sides of the lifting frame, and the lifting guide rails are arranged relatively parallel at both ends of the lifting frame, and a lifting and conveying platform is connected between the two lifting frames, and the lifting and conveying platform cooperates with the lifting guide rails on both sides through the connecting plates arranged on both sides; the two lifting frames are provided with lifting screws on the sides facing away from each other, and the lifting screws are connected to the connecting plates, and the lifting screws are lifted and lowered to drive the lifting and conveying platform to slide along the lifting guide rails. A double hinge is connected between the connecting plate and the lifting and conveying platform. When the lifting guide rail is offset, the double hinge will tilt and unfold under the influence of the force of the lifting screw, so that the lifting and conveying platform tilts and shakes, and the tilting avoids jamming during the lifting process, thereby realizing a self-adjusting lifting system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a lifting and guiding adaptive AGV provided in an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the structure of a lifting and conveying platform provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic structural diagram of a lifting and conveying frame provided in an embodiment of the present invention.

[0021] in:

[0022] 1-bottom plate, 2-lifting frame, 21-lifting guide rail, 22-hollow groove, 23-partition, 24-screw mounting seat, 3-lifting conveying platform, 31-connecting plate, 32-double hinge, 33-lifting bracket, 34-roller, 35-guide wheel, 4-lifting screw, 41-nut connecting seat, 5-baffle, 51-electric push rod, 6-mobile chassis, 7-motor, 8-transmission box. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Reference Manual Attached Figure 1 , attached Figure 1 The structural schematic diagram of the lifting guided adaptive AGV provided by the embodiment of the present invention comprises: a bottom plate 1 and lifting frames 2 vertically arranged on both sides of the bottom plate 1, lifting guide rails 21 are arranged on the two opposite sides of the lifting frames 2, and two relatively parallel lifting guide rails 21 are arranged at both ends of each lifting frame 2; a lifting and conveying platform 3 is arranged between the two lifting frames 2, and the lifting and conveying platform 3 is used to lift up and down between the lifting frames 2 to a set position to dock the goods with the platform;

[0026] Connecting plates 31 are provided on both sides of the lifting and conveying platform 3, and lifting screw rods 4 are provided on the sides of the two lifting frames 2 that are away from each other (i.e., the two outer sides of the lifting and conveying frames), and the lifting screw rods 4 are fixedly connected to the connecting plates 31; when the lifting screw rods 4 move, they will drive the lifting and conveying platform 3 to slide along the lifting track 21 through the connecting plates 31.

[0027] A double hinge 32 is arranged between the above-mentioned connecting plate 31 and the lifting and conveying platform 3, and reaming seats are arranged on both sides of the lifting and conveying platform 3. A hinge seat is correspondingly arranged on the above-mentioned connecting plate 31. The reaming hole at one end of the above-mentioned double hinge 32 is hinged to the reaming hole seat of the lifting and conveying platform 3, and the other end is hinged to the hinge seat fixed on the connecting plate 31.

[0028] When the lifting guide rail 21 tilts, the lifting guide rail 21 on the lifting frame 2 on the same side will be non-parallel, hindering the lifting and lowering of the lifting and conveying platform 3. At this time, the double hinge 32 relies on the pulling force brought by the lifting screw 4 to start tilting and swinging. The double hinge 32 makes the lifting and conveying platform 3 tilt and swing to a certain extent in the horizontal direction, thereby compensating for the jamming problem caused by the non-parallel lifting rail 21.

[0029] When the lifting screws 4 on both sides are not coordinated in operation or have poor synchronization in motion control, the lifting motion jamming problem caused by this can also be solved by the unfolding and tilting of the double hinge 32. In view of the above two situations, this embodiment solves the problems of the lifting and conveying platform 3 jamming and large running resistance caused by poor synchronization of movement on both sides or precision errors on both sides, and realizes the self-adaptation of the guide error.

[0030] Further, refer to the attached manual Figure 2 , attached Figure 2 The structural schematic diagram of the lifting and conveying platform provided in the embodiment of the present invention includes: the above-mentioned double hinge 32 and the lifting and conveying platform 3 are connected to the lifting bracket 33, and the lifting bracket 33 on one side is provided with a liftable baffle 5, and the baffle 5 is arranged at both ends of the outer side of the lifting bracket 33, and the above-mentioned baffle 5 is connected to the outer side of the lifting bracket 33 through an electric push rod 51.

[0031] When the AGV trolley docks with the platform and the material box is transported to the inside of the lifting and conveying platform 3, the above-mentioned electric push rod 51 starts to work and pulls down the baffle 5. At this time, the baffle 5 is on both sides of the material box to limit the material box and prevent it from sliding along the conveying direction; when the AGV trolley is carrying out shipment transportation, the electric push rod 51 works to pull up the baffle 5, and the lifting and conveying platform 3 is lifted to the same height as the docking delivery platform, and the transport material box completes the docking and shipment.

[0032] Furthermore, the connecting plate 31 is evenly provided with a plurality of rollers 34 along the horizontal uniform speed direction. When the lifting and conveying platform 3 delivers goods, the goods are conveyed and transmitted by the rollers 34. The rollers 34 are selected for conveying because of their simple structure and strong transmission capacity.

[0033] The transmission structure selected for the above-mentioned lifting and conveying platform 3 is not limited to the roller 34. It only needs to ensure strong transmission ability, simple structure and low manufacturing cost. Conveyor belts, conveyor rollers and other structures can also be selected.

[0034] Furthermore, hollow grooves 22 are provided on both end sides of the lifting frame 2 along the vertical direction. The hollow grooves 22 leave space for the double hinges 32 to tilt and swing, and facilitate users to repair and replace the double hinges 32.

[0035] Further, refer to the attached manual Figure 3 , attached Figure 3 The structural schematic diagram of the lifting conveyor frame provided in an embodiment of the present invention includes: the above-mentioned lifting screw rod 4 and the connecting plate 31 are connected via a nut connecting seat 41, one side of the above-mentioned nut connecting seat 41 is sleeved and fixed on the lifting screw rod 4, and the other side is fastened to the side of the connecting plate 31 via a screw nut. The above-mentioned nut connecting seat 41 strengthens the connection stability between the lifting screw rod 4 and the connecting plate 31, and is convenient for users to perform maintenance and replacement.

[0036] A motor 7 and a transmission box 8 are arranged on the side of the lifting screw rod 4. After the power provided by the motor 7 is converted into the power of the lifting screw rod 4 through the transmission box 8, it is easier to control the movement of the lifting screw rod 4.

[0037] Furthermore, a partition plate 23 is connected between the lifting guide rails 21 in the lifting frame 2 on the same side, and the partition plate 23 is used to increase the balance between the two lifting guide rails 21, so that it is not easy to tilt and hinder the movement of the lifting and conveying platform 3. In addition, the partition plate 23 can also be used to limit the material box transported by the lifting and conveying platform 3.

[0038] Furthermore, a screw mounting seat 24 is provided at the top end of the partition 23 extending toward the outside of the lifting conveyor frame. The screw mounting seat 24 is used for mounting the top end of the lifting screw 4. The screw mounting seat 24 ensures the integrity of the lifting screw 4 and the lifting guide rail 21, making the lifting movement more stable and preventing the relative position of the lifting screw 4 and the lifting guide rail 21 from being offset.

[0039] Furthermore, the connecting plate 31 is embedded with a guide wheel 35 cooperating with the lifting guide rail 21. The lifting guide rail 21 and the guide wheel 21 are matched with a V-shaped guide rail and a V-shaped guide wheel. The V-shaped guide rail runs smoothly, has low noise, good stability, and can perform sudden acceleration and deceleration operations, and is suitable for use with the lifting conveyor frame.

[0040] The present application also provides an AGV, including a mobile chassis 6 and the above-mentioned lifting and conveying frame, the above-mentioned lifting and conveying frame is installed on the top surface of the mobile chassis 6 and moves together with the mobile chassis 6. The setting method and use method of the AGV can refer to the existing technology and will not be repeated in this article.

[0041] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0042] The above is a detailed introduction to the lifting and conveying frame provided by the present invention and the AGV with the lifting and conveying frame. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A lifting and conveying frame, characterized in that: include: A base plate (1) and a lifting frame (2) fixed on both sides of the base plate (1), wherein two opposite side surfaces of the lifting frame (2) are provided with lifting guide rails (21), and the lifting guide rails (21) are relatively parallelly arranged at both ends of the lifting frame (2); A lifting and conveying platform (3) is connected between the two lifting frames (2); connecting plates (31) are arranged on both sides of the lifting and conveying platform (3); and lifting screw rods (4) are arranged on the sides of the two lifting frames (2) that are away from each other. The lifting screw rods (4) are connected to the sides of the connecting plates (31), and the lifting screw rods (4) are used to drive the lifting and conveying platform (3) to slide along the lifting guide rails (21); The connecting plate (31) is connected to the lifting and conveying platform (3) via a double hinge (32). The lifting and conveying platform (3) is provided with reaming seats on both sides, and the connecting plate (31) is correspondingly provided with a hinge seat. The reaming hole at one end of the double hinge (32) is hinged to the reaming seat of the lifting and conveying platform (3), and the other end of the double hinge (32) is hinged to the hinge seat fixed on the connecting plate (31). The double hinge (32) is used to unfold so that the lifting and conveying platform (3) is tilted relative to the horizontal direction.

2. The lifting and conveying frame according to claim 1, characterized in that: The double hinged member (32) and the lifting and conveying platform (3) are connected to a lifting bracket (33), and liftable baffles (5) are provided at both ends of the outer side of the lifting bracket (33).

3. The lifting and conveying frame according to claim 2, characterized in that: A plurality of rollers (34) evenly placed in the horizontal direction are sandwiched between the connecting plates (31).

4. The lifting and conveying frame according to claim 3, characterized in that: Both end surfaces of the lifting frame (2) are provided with hollow grooves (22) along the vertical direction, and the double hinged parts (32) are unfolded in the hollow grooves (22).

5. The lifting and conveying frame according to claim 4, characterized in that: A nut connection seat (41) is connected between the lifting screw rod (4) and the connection plate (31) to increase stability.

6. The lifting and conveying frame according to claim 5, characterized in that: A partition plate (23) for increasing stability is connected between the lifting guide rails (21) of the lifting frame (2) on the same side.

7. The lifting and conveying frame according to claim 6, characterized in that: A screw rod mounting seat (24) is provided at the top end of the partition plate (23) in a direction away from the lifting and conveying platform (3), and the screw rod mounting seat (24) is used for mounting the top end of the lifting screw rod (4).

8. The lifting and conveying frame according to claim 7, characterized in that: The connecting plate (31) is provided with a guide wheel (35) for cooperating with the lifting guide rail (21).

9. An AGV, comprising a mobile chassis (6), characterized in that: It comprises the lifting and conveying frame as described in any one of claims 1 to 8, wherein the lifting and conveying frame is installed on the top surface of the mobile chassis (6).

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