CN116788744A

CN116788744A - Commodity circulation of stereoscopic warehouse pickles device

Info

Publication number: CN116788744A
Application number: CN202310850276.8A
Authority: CN
Inventors: 赖智文; 陈学能; 张嘉荣
Original assignee: Guangxi Lisheng Industrial Robot Manufacturing Co ltd; Guangzhou Lisheng Robot Technology Co ltd
Current assignee: Guangxi Lisheng Industrial Robot Manufacturing Co ltd; Guangzhou Lisheng Robot Technology Co ltd
Priority date: 2023-07-11
Filing date: 2023-07-11
Publication date: 2023-09-22

Abstract

The utility model belongs to the technical field of logistics, a stereoscopic warehouse's commodity circulation goods picking device is disclosed, the device is including goods shelves, lifting unit, clamp and get the unit and place the unit, clamp and get the unit and install on the lifting unit, the lifting unit is all installed on the goods shelves with placing the unit. The goods shelf is used for placing various goods picked up in the one-time goods picking process, the clamping unit is used for clamping the goods onto the goods shelf, the lifting unit is used for lifting the clamping unit, the clamping unit can clamp the goods at the height of the warehouse, the placing unit is used for stacking the goods clamped onto the goods shelf, the space on the goods shelf is utilized as much as possible, and the goods can be picked up as much as possible once. The device is applied to picking up various cargoes in a stereoscopic warehouse.

Description

Commodity circulation of stereoscopic warehouse pickles device

Technical Field

The disclosure belongs to the technical field of logistics, and in particular relates to a logistics goods picking device of a stereoscopic warehouse.

Background

With the continuous development of the current technology, the continuous development of the logistics industry is strong, and the increasing logistics scale is very a test for improving the logistics technology.

An automated stereoscopic warehouse is also called an overhead warehouse for short, generally, because several, ten or even tens of layers of racks are used to store unit goods, and because such a warehouse can fully utilize space to store goods, it is often visually called a "stereoscopic warehouse".

The picking operation is an operation flow of picking up goods from a storage place or other areas as quickly and accurately as possible according to the ordering requirements of customers or the delivery plan of a delivery center, sorting, centralizing and waiting for loading and delivering the goods in a certain mode, and when picking up the goods, a picking truck is generally used for storing the picked goods.

For picking operation in the stereoscopic warehouse, a plurality of cargoes are required to be found and taken out at the same time, and the cargoes at a higher position often need to be taken down in the picking process, so that the staff is required to manually pick the cargoes, and the larger cargoes also need mechanical help such as a forklift to pick the cargoes. In busy periods, the related machines are used frequently, which is not beneficial to improving the picking efficiency.

Disclosure of Invention

Aiming at the defects of the prior art, the object of the present disclosure is to provide a commodity circulation goods picking device of a stereoscopic warehouse, which solves the problem that in the stereoscopic warehouse in the prior art, various goods are required to be efficiently picked.

The purpose of the disclosure can be achieved by the following technical scheme:

the utility model provides a commodity circulation goods picking device of stereoscopic warehouse, its characterized in that, the device is including goods shelves, lifting unit, clamp and get the unit and place the unit, clamp and get the unit and install on the lifting unit, the lifting unit is all installed on the goods shelves with placing the unit.

The clamping unit comprises two clamping plates, the two clamping plates are connected with two ends of a first threaded rod in a threaded mode, threads at two ends of the first threaded rod are opposite in spiral direction, the clamping plates are connected to the lifting frame in a sliding mode, two ends of the first threaded rod are connected to the lifting frame in a rotating mode, one end of the first threaded rod is fixedly connected to an output shaft of a first motor, and the first motor is fixedly installed on the lifting frame.

Further, one side threaded connection of crane has two second threaded rods, two second threaded rods are located the both ends of crane, the second threaded rod rotates to be connected on the carriage, the upper end fixedly connected with worm wheel of second threaded rod, the worm wheel at crane both ends meshes respectively at the both ends of worm, the worm rotates to be connected on the carriage, the one end fixed connection of worm is on the output shaft of second motor, second motor fixed mounting is on the carriage.

Further, carriage sliding connection is on the slide rail, slide rail fixed connection is on the lifting unit, it is connected with the third threaded rod to rotate on the slide rail, the third threaded rod runs through the carriage, with carriage threaded connection, third threaded rod one end is provided with drive belt, the drive belt other end is connected in first bevel gear's axis of rotation, first bevel gear rotates to be connected on the slide rail, first bevel gear meshes with the second bevel gear, second bevel gear fixed connection is in the pivot, the pivot rotates to be connected on the lifting unit, the middle part fixedly connected with first gear of pivot, first gear meshes with the second gear, second gear fixed connection is on the output shaft of third motor, third motor fixed mounting is on the lifting unit.

Further, the lifting unit is including placing the board, place board both sides fixed connection in the upper end of rising subassembly, rising subassembly is provided with two sets of, is located the both sides of placing the board respectively, rising subassembly includes many spinal branch vaulting poles, and the bracing piece is crisscross each other, and the tip articulates each other, constitutes scissor lift mechanism, and among four spinal branch vaulting poles of the lower extreme, two bracing piece tip articulates on the base of keeping away from placing the board, and the tip that is close to two bracing pieces of placing the board articulates jointly on traction block, traction block sliding connection is on the base, the centre of traction block runs through there is the fourth threaded rod, fourth threaded rod and traction block threaded connection, traction block in two sets of rising subassemblies of threaded connection respectively at fourth threaded rod both ends, fourth threaded rod rotates to be connected on the base, the middle part fixedly connected with third gear of fourth threaded rod, the meshing has the fourth gear on the third gear, fourth gear fixed mounting is on the output shaft of fourth motor.

Further, the goods shelves are provided with two layers, goods shelves and lifting unit are all fixed mounting on the flatbed, four universal wheels are installed to the below of flatbed, fixedly connected with push rod on the flatbed.

Further, the placing unit comprises a sliding plate, the sliding plate is arranged between the goods shelf and the clamping unit, and the upper layer and the lower layer of the goods shelf are respectively provided with the sliding plate. The upper layer slide plate is characterized in that a clamping plate is fixedly connected to the upper side of the upper layer slide plate, a clamping block is fixedly connected to the upper side of the clamping plate in the clamping unit, and the size of the clamping plate is changed according to requirements.

Further, the upper and lower two-layer of goods shelves all are provided with and drag the subassembly, drag the subassembly and include the fixed block, be provided with the spout on the fixed block, the fixed block has two push plates through spout in both sides sliding connection, one side fixedly connected with slide bar that the unit was got to the fixed plate is close to the clamp, the slide bar runs through the push plate, with push plate sliding connection, the cover is equipped with the spring on the slide bar, and the spring is located between fixed block and the push plate. The fixed block is fixedly connected to a telescopic rod of the telescopic cylinder, the telescopic cylinder is fixed to the moving block, a fifth threaded rod penetrates through the moving block, the fifth threaded rod is rotatably connected to the goods shelf, one end of the fifth threaded rod is fixedly connected to an output shaft of a fifth motor, and the fifth motor is fixedly installed on the goods shelf.

Further, the lower part of placing the board rotates and is connected with the sixth threaded rod, threaded connection has the transposition board on the sixth threaded rod, the tip fixedly connected with fifth gear of sixth threaded rod, fifth gear meshes with the sixth gear mutually, sixth gear fixed connection is on the output shaft of sixth motor, sixth motor fixed mounting is placing the lower extreme of board.

The beneficial effects of the present disclosure are:

1. the device can finish the goods picking work of higher goods in the stereoscopic warehouse, does not need to adopt manpower, does not need to utilize machines such as fork truck, avoids the danger of manual ascending, prevents to wait for the time delay that relevant machines caused in the peak period, improves the efficiency of picking goods.

2. The device sorts various cargoes with different volumes, and places on different goods shelves, makes things convenient for taking in the follow-up delivery process.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described, and it will be apparent to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic overall construction of an embodiment of the present disclosure;

FIG. 2 is a schematic view of a part of the structure of a gripping unit according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a placement plate-related structure according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of a portion of the gripper unit and lift unit of an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a drag assembly related structure of an embodiment of the present disclosure;

Detailed Description

The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments in this disclosure without inventive faculty, are intended to fall within the scope of this disclosure.

As shown in fig. 1-5, the device is a commodity circulation goods picking device of a stereoscopic warehouse, and the device comprises a goods shelf 1, a lifting unit 2, a clamping unit 3 and a placing unit 4, wherein the clamping unit 3 is arranged on the lifting unit 2, and both the lifting unit 2 and the placing unit 4 are arranged on the goods shelf 1. The goods shelves 1 are used for placing various goods picked up in a goods picking process, the clamping unit 3 is used for clamping the goods to the goods shelves 1, the lifting unit 2 is used for lifting the clamping unit 3, the clamping unit 3 can clamp the goods at the height of the stereoscopic warehouse, the placing unit 4 is used for stacking the goods clamped to the goods shelves 1, the space on the goods shelves 1 is utilized as much as possible, and the goods can be picked up as much as possible for one time.

For picking up goods, a clamping unit 3 is provided, the clamping unit 3 comprises two clamping plates 311, the two clamping plates 311 are connected to two ends of a first threaded rod 312 in a threaded mode, the threaded directions of the two ends of the first threaded rod 312 are opposite, the clamping plates 311 are connected to a lifting frame 313 in a sliding mode, the two ends of the first threaded rod 312 are connected to the lifting frame 313 in a rotating mode, one end of the first threaded rod 312 is fixedly connected to an output shaft of a first motor 314, and the first motor 314 is fixedly installed on the lifting frame 313. One side threaded connection of crane 313 has two second threaded rods 321, two second threaded rods 321 are located the both ends of crane 313, second threaded rod 321 rotates to be connected on carriage 322, the upper end fixedly connected with worm wheel 323 of second threaded rod 321, worm wheel 323 at the both ends of crane 313 meshes respectively at the both ends of worm 324, worm 324 rotates to be connected on carriage 322, the one end fixed connection of worm 324 is on the output shaft of second motor 325, second motor 325 fixed mounting is on carriage 322. The sliding frame 322 is slidingly connected to the sliding rail 331, the sliding rail 331 is fixedly connected to the lifting unit 2, a third threaded rod 332 is rotationally connected to the sliding rail 331, the third threaded rod 332 penetrates through the sliding frame 322 and is in threaded connection with the sliding frame 322, one end of the third threaded rod 332 is provided with a driving belt, the other end of the driving belt is connected to a rotating shaft of the first bevel gear 333, the first bevel gear 333 is rotationally connected to the sliding rail 331, the first bevel gear 333 is meshed with the second bevel gear 334, the second bevel gear 334 is fixedly connected to a rotating shaft, the rotating shaft is rotationally connected to the lifting unit 2, a first gear 335 is fixedly connected to the middle of the rotating shaft and is meshed with the second gear 336, the second gear 336 is fixedly connected to an output shaft of the third motor 337, and the third motor 337 is fixedly installed on the lifting unit 2.

For clamping of goods, the clamping plate 311 needs to extend out and move to two sides of the goods, so that the goods are clamped through the clamping plate 311, a third motor 337 is needed, and the second motor 325 operates in cooperation with the first motor 314. The third motor 337 is started, the second gear 336 drives the first gear 335 and the rotating shaft, the second bevel gears 334 at two ends of the rotating shaft rotate, the second bevel gears 334 drive the first bevel gears 333 to rotate, the first bevel gears 333 drive the third threaded rod 332 to rotate through a transmission belt, the third threaded rod 332 rotates to drive the sliding frame 322 to move on the sliding rail 331, and the sliding frame 322 moves to extend the clamping plate 311. The second motor 325 is started to drive the worm 324 to rotate, and the worm 324 drives the worm wheel 323 at two ends and the second threaded rod 321 to rotate. The second threaded rod 321 drives the lifting frame 313 to move downwards, so that the clamping plate 311 moves downwards. The clamping plates 311 are positioned on two sides of the goods by controlling the distance between the clamping plates 311 and the downward movement, at the moment, the first motor 314 is started to drive the first threaded rod 312, and the clamping plates 311 at two ends of the first threaded rod 312 are close to each other to clamp the goods.

For the goods at the high position of the stereoscopic warehouse, the clamping unit 3 needs to be lifted, so that the goods are clamped, the lifting unit 2 comprises a placing plate 21, two sides of the placing plate 21 are fixedly connected to the upper ends of lifting assemblies 22, the lifting assemblies 22 are provided with two groups and are respectively positioned on two sides of the placing plate 21, the lifting assemblies 22 comprise a plurality of supporting rods, the supporting rods are mutually staggered, the end parts are mutually hinged to form a scissor type lifting mechanism, the end parts of the two supporting rods far away from the placing plate 21 are hinged to a base, the end parts of the two supporting rods close to the placing plate 21 are commonly hinged to a traction block 221, the traction block 221 is slidably connected to the base, a fourth threaded rod 222 is penetrated in the middle of the traction block 221, the fourth threaded rod 222 is in threaded connection with the traction block 221 in the two groups of lifting assemblies 22, the two ends of the fourth threaded rod 222 are respectively in threaded connection with the traction block 221, the fourth threaded rod 222 is rotatably connected to the base, the middle of the fourth threaded rod 222 is fixedly connected with a third gear 223, the end part of the fourth gear 223 is meshed with a fourth gear 223, and the fourth gear 225 is fixedly arranged on the fourth gear 224.

The fourth motor 225 is started, the fourth gear 224 drives the third gear 223 to rotate with the fourth threaded rod 222, the fourth threaded rod 222 rotates to drive the traction blocks 221 at the two ends to move oppositely, the traction blocks 221 move to drive the support rods to move, the support rods are lifted, and the placing plate 21 at the upper parts of the support rods is lifted.

After the gripping unit 3 grips the goods, the goods are placed on the placing plate 21, the lifting assembly 22 descends, and at this time, the clamping plate 311 continues to clamp the goods, so that the goods are kept stable and are prevented from falling.

The slide rail 331 in the gripping unit 3 is installed at the upper end of the elevation assembly 22; the third motor 337 is fixedly installed at the lower end of the placement plate 21.

The goods shelf 1 is arranged for placing and transporting goods, the goods shelf 1 is provided with two layers, the goods shelf 1 and the lifting unit 2 are fixedly installed on the flat car 11, four universal wheels are installed below the flat car 11, and push rods are fixedly connected to the flat car 11.

Because in the process of picking up goods once, various goods need to be found out and transported, the volume of these goods has big or small, in order to be convenient for pick up take the delivery after the goods is accomplished, the relatively big goods of volume is unsuitable to put on the upper strata of goods shelves 1, consequently need place the goods respectively, and the relatively small goods are put on the upper strata of goods shelves 1, and the relatively big goods of volume are placed on the lower floor of goods shelves 1 to be convenient for follow-up taking is provided with and places unit 4 and places the goods respectively. The placing unit 4 comprises a sliding plate 411, the sliding plate 411 is arranged between the goods shelf 1 and the clamping unit 3, and the sliding plate 411 is arranged on the upper layer and the lower layer of the goods shelf 1. The upper slide plate 411 is fixedly connected with a clamping plate 412, the clamping block 413 is fixedly connected with the clamping plate 311 in the clamping unit 3, and the size of the clamping plate 412 is changed according to the requirement.

The upper layer and the lower layer of the goods shelf 1 are respectively provided with a dragging assembly, each dragging assembly comprises a fixed block 421, a sliding groove is formed in each fixed block 421, each fixed block 421 is connected with two pushing plates 422 in a sliding mode through the corresponding sliding grooves, one side, close to the clamping unit 3, of each fixed plate is fixedly connected with a sliding rod, each sliding rod penetrates through each pushing plate 422 and is in sliding connection with each pushing plate 422, a spring is sleeved on each sliding rod, and each spring is located between each fixed block 421 and each pushing plate 422. The fixed block 421 is fixedly connected to a telescopic rod of the telescopic cylinder 423, the telescopic cylinder 423 is fixed to a moving block, a fifth threaded rod 424 penetrates through the moving block, the fifth threaded rod 424 is rotatably connected to the goods shelf 1, one end of the fifth threaded rod 424 is fixedly connected to an output shaft of a fifth motor 425, and the fifth motor 425 is fixedly mounted on the goods shelf 1.

For the goods on the placing plate 21 to be moved into the goods shelf 1, a sixth threaded rod 431 is rotationally connected to the lower portion of the placing plate 21, a transposition plate 432 is connected to the sixth threaded rod 431 in a threaded mode, a fifth gear 433 is fixedly connected to the end portion of the sixth threaded rod 431, the fifth gear 433 is meshed with a sixth gear 434, the sixth gear 434 is fixedly connected to an output shaft of a sixth motor 435, and the sixth motor 435 is fixedly installed at the lower end of the placing plate 21.

For the placing of goods, after the goods clamp is taken to place on the board 21, lift the unit 1 and descend, judge the volume size of goods through the distance between two splint 311 this moment, the distance between splint 311 is less then the goods volume is less, the distance between splint 311 is great, namely the goods volume is great, change the size of cardboard 412 as required, when rising the subassembly 22 descends, if the goods volume is less then the distance between splint 311 is less, result in the fixture block 413 on splint 311 to be blocked by cardboard 412, unable the continuation decline, the slide 411 of upper strata is just located or goods shelves 1 and places in the middle of the board 21 this moment. The gripping unit 3 releases the goods, the sixth motor 435 is started, the sixth gear 434 drives the fifth gear 433 to rotate with the fifth threaded rod 424, the fifth threaded rod 424 drives the transposition plate 432 to move, the transposition plate 432 pushes the goods from the placement plate 21 into the sliding plate 411, the goods slide into the goods shelf 1 from the sliding plate 411, and the goods are located in the middle of the two pushing plates 422. The telescopic cylinder 423 is started to push the fixed block 421 to the goods, at the moment, the fifth motor 425 is started to drive the fifth threaded rod 424 to rotate, the fifth threaded rod 424 rotates to drive the moving block to move with the telescopic cylinder 423, at the moment, the push plate 422 contacts the goods to push the goods to the two sides of the goods shelf 1, the goods are moved to the two sides of the goods shelf 1, the goods are placed, the telescopic rod of the telescopic cylinder 423 is shortened, and the fixed block 421 is retracted.

The picking steps of the device are as follows: the fourth motor 225 is started, the fourth gear 224 drives the third gear 223 to rotate with the fourth threaded rod 222, the fourth threaded rod 222 rotates to drive the traction blocks 221 at the two ends to move oppositely, the traction blocks 221 move to drive the support rods to move, the support rods are lifted, and the placing plate 21 at the upper parts of the support rods is lifted.

The third motor 337 is started, the second gear 336 drives the first gear 335 and the rotating shaft, the second bevel gears 334 at two ends of the rotating shaft rotate, the second bevel gears 334 drive the first bevel gears 333 to rotate, the first bevel gears 333 drive the third threaded rod 332 to rotate through a transmission belt, the third threaded rod 332 rotates to drive the sliding frame 322 to move on the sliding rail 331, and the sliding frame 322 moves to extend the clamping plate 311. The second motor 325 is started to drive the worm 324 to rotate, and the worm 324 drives the worm wheel 323 at two ends and the second threaded rod 321 to rotate. The second threaded rod 321 drives the lifting frame 313 to move downwards, so that the clamping plate 311 moves downwards. The clamping plates 311 are positioned on two sides of the goods by controlling the distance between the clamping plates 311 and the downward movement, at the moment, the first motor 314 is started to drive the first threaded rod 312, and the clamping plates 311 at two ends of the first threaded rod 312 are close to each other to clamp the goods. After the gripping unit 3 grips the goods, the goods are placed on the placing plate 21, the lifting assembly 22 descends, and at this time, the clamping plate 311 continues to clamp the goods, so that the goods are kept stable and are prevented from falling.

The lifting unit descends, at this time, the size of the goods is judged through the distance between the two clamping plates 311, the distance between the clamping plates 311 is smaller, the size of the goods is larger, the distance between the clamping plates 311 is larger, the size of the clamping plates 412 is changed according to the requirement, when the lifting assembly 22 descends, if the size of the goods is smaller, the distance between the clamping plates 311 is smaller, the clamping blocks 413 on the clamping plates 311 are clamped by the clamping plates 412, the goods cannot continue to descend, and at this time, the upper-layer sliding plate 411 is just positioned between the goods shelf 1 and the placing plate 21. The gripping unit 3 releases the goods, the sixth motor 435 is started, the sixth gear 434 drives the fifth gear 433 to rotate with the fifth threaded rod 424, the fifth threaded rod 424 drives the transposition plate 432 to move, the transposition plate 432 pushes the goods from the placement plate 21 into the sliding plate 411, the goods slide into the goods shelf 1 from the sliding plate 411, and the goods are located in the middle of the two pushing plates 422. The telescopic cylinder 423 is started to push the fixed block 421 to the goods, at the moment, the fifth motor 425 is started to drive the fifth threaded rod 424 to rotate, the fifth threaded rod 424 rotates to drive the moving block to move with the telescopic cylinder 423, at the moment, the push plate 422 contacts the goods to push the goods to the two sides of the goods shelf 1, the goods are moved to the two sides of the goods shelf 1, the goods are placed, the telescopic rod of the telescopic cylinder 423 is shortened, and the fixed block 421 is retracted.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features, and advantages of the present disclosure. It will be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, which have been described in the foregoing and description merely illustrates the principles of the disclosure, and that various changes and modifications may be made therein without departing from the spirit and scope of the disclosure, which is defined in the appended claims.

Claims

1. The logistics goods picking device of the stereoscopic warehouse is characterized by comprising a goods shelf (1), a lifting unit (2), a clamping unit (3) and a placing unit (4), wherein the clamping unit (3) is arranged on the lifting unit (2), and the lifting unit (2) and the placing unit (4) are arranged on the goods shelf (1);

the clamping unit (3) comprises two clamping plates (311), the two clamping plates (311) are connected with two ends of a first threaded rod (312) in a threaded mode, the threaded screw directions of the two ends of the first threaded rod (312) are opposite, the clamping plates (311) are connected to a lifting frame (313) in a sliding mode, the two ends of the first threaded rod (312) are connected to the lifting frame (313) in a rotating mode, one end of the first threaded rod (312) is fixedly connected to an output shaft of a first motor (314), and the first motor (314) is fixedly mounted to the lifting frame (313).

2. The logistics picking device of the stereoscopic warehouse according to claim 1, wherein one side of the lifting frame (313) is in threaded connection with two second threaded rods (321), the two second threaded rods (321) are located at two ends of the lifting frame (313), the second threaded rods (321) are rotationally connected to the sliding frame (322), worm wheels (323) are fixedly connected to the upper ends of the second threaded rods (321), the worm wheels (323) at two ends of the lifting frame (313) are respectively meshed with two ends of a worm (324), the worm (324) is rotationally connected to the sliding frame (322), one end of the worm (324) is fixedly connected to an output shaft of a second motor (325), and the second motor (325) is fixedly installed on the sliding frame (322).

3. The logistics picking device of a stereoscopic warehouse according to claim 2, wherein the sliding frame (322) is slidingly connected on the sliding rail (331), the sliding rail (331) is fixedly connected on the lifting unit (2), a third threaded rod (332) is rotationally connected on the sliding rail (331), the third threaded rod (332) penetrates through the sliding frame (322) and is in threaded connection with the sliding frame (322), one end of the third threaded rod (332) is provided with a transmission belt, the other end of the transmission belt is connected on a rotating shaft of the first bevel gear (333), the first bevel gear (333) is rotationally connected on the sliding rail (331), the first bevel gear (333) is meshed with the second bevel gear (334), the second bevel gear (334) is fixedly connected on a rotating shaft, the rotating shaft is rotationally connected on the lifting unit (2), a first gear (335) is fixedly connected in the middle of the rotating shaft, the first gear (335) is meshed with the second gear (336), and the second gear (336) is fixedly connected on the third motor (337) and is fixedly arranged on the lifting unit (2).

4. A stereoscopic warehouse logistics picking device according to claim 3, wherein the lifting unit (2) comprises a placing plate (21), two sides of the placing plate (21) are fixedly connected to the upper ends of the lifting assemblies (22), the lifting assemblies (22) are provided with two groups of lifting assemblies, the lifting assemblies (22) are respectively located at two sides of the placing plate (21), the lifting assemblies (22) comprise a plurality of supporting rods, the supporting rods are mutually staggered, the end parts are mutually hinged to form a scissor type lifting mechanism, the end parts of the four supporting rods at the lowest end are hinged to a base, the end parts of the two supporting rods far away from the placing plate (21) are jointly hinged to a traction block (221), the traction block (221) is connected to the base in a sliding mode, a fourth threaded rod (222) is in threaded mode with the traction block (221), two ends of the fourth threaded rod (222) are respectively in threaded mode, the four threaded rods are respectively connected to the traction blocks (221) in the two groups of lifting assemblies, the fourth threaded rod (222) are connected to a fourth threaded rod (221) in a threaded mode, the fourth threaded rod (222) is connected to a fourth gear (225) in a rotary mode, and the fourth threaded rod (222) is fixedly connected to a fourth gear (223) is fixedly arranged on the middle portion of the fourth threaded rod (223).

5. The logistics picking device of the stereoscopic warehouse according to claim 4, wherein the goods shelf (1) is provided with two layers, the goods shelf (1) and the lifting unit (2) are fixedly installed on the flat car (11), four universal wheels are installed below the flat car (11), and pushing rods are fixedly connected to the flat car (11).

6. The logistic picking device of the stereoscopic warehouse according to claim 5, wherein the placing unit (4) comprises a sliding plate (411), the sliding plate (411) is arranged between the goods shelf (1) and the clamping unit (3), and the sliding plate (411) is arranged on the upper layer and the lower layer of the goods shelf (1); the upper sliding plate (411) is fixedly connected with a clamping plate (412), the clamping block (413) is fixedly connected with the clamping plate (311) in the clamping unit (3), and the size of the clamping plate (412) is changed according to the requirement.

7. The logistics picking device of the stereoscopic warehouse according to claim 6, wherein the dragging components are arranged on the upper layer and the lower layer of the goods shelf (1), the dragging components comprise fixed blocks (421), sliding grooves are formed in the fixed blocks (421), two pushing plates (422) are slidably connected to the fixed blocks (421) on two sides through the sliding grooves, a sliding rod is fixedly connected to one side, close to the clamping unit (3), of the fixed blocks, the sliding rod penetrates through the pushing plates (422) and is slidably connected with the pushing plates (422), springs are sleeved on the sliding rod, and the springs are located between the fixed blocks (421) and the pushing plates (422); the fixed block (421) is fixedly connected to a telescopic rod of the telescopic cylinder (423), the telescopic cylinder (423) is fixed to the moving block, a fifth threaded rod (424) penetrates through the moving block, the fifth threaded rod (424) is rotatably connected to the goods shelf (1), one end of the fifth threaded rod (424) is fixedly connected to an output shaft of a fifth motor (425), and the fifth motor (425) is fixedly installed on the goods shelf (1).

8. The logistics picking device of the stereoscopic warehouse according to claim 7, wherein a sixth threaded rod (431) is rotatably connected to the lower portion of the placement plate (21), a transposition plate (432) is connected to the sixth threaded rod (431) in a threaded manner, a fifth gear (433) is fixedly connected to the end portion of the sixth threaded rod (431), the fifth gear (433) is meshed with a sixth gear (434), the sixth gear (434) is fixedly connected to an output shaft of a sixth motor (435), and the sixth motor (435) is fixedly installed at the lower end of the placement plate (21).