Multi-dimensional transfer system for plate production line

Abstract

The multi-dimensional transferring system comprises a steel rail, a first moving mechanism, a lifting mechanism and a second moving mechanism, the conveying direction of the second moving mechanism is perpendicular to the moving direction of the first moving mechanism, and the first moving mechanism comprises a walking power source and a walking frame; the walking frame comprises a first walking beam and a second walking beam connecting the first walking beam together, the walking power source is installed on the second walking beam, a driving wheel and a walking wheel are arranged on the first walking beam, and the walking power source is in transmission connection with the driving wheel on the first walking beam through a first transmission shaft. The tray is supported by the second moving mechanism, X-direction and Z-direction adjustment of the tray can be achieved through the first moving mechanism and the lifting mechanism, Y-direction conveying of the tray can be achieved through the second moving mechanism, then flexible transferring of the tray is achieved, the transferring efficiency of the tray is improved, and the machining efficiency of a plate production line is improved.

Description

Technical Field

[0001] The invention relates to the field of processing non-standard steel structural parts, and in particular to a multi-dimensional transfer system for a plate production line. Background Art

[0002] With the rapid development of industry, the demand for non-standard steel structural parts has increased, and the demand for plate (i.e. steel plate) blanking has also increased. Intelligent production lines such as plate loading, plate transportation, plate cutting, and automatic sorting will become the development direction of smart factories. The automatic loading and unloading, automatic cutting, automatic sorting, automatic stacking, and automatic transfer intelligent production lines in smart factories will greatly improve manufacturing production capacity. Among them, the operation of plates in the production line requires pallets, so the transfer of pallets is an indispensable and important process in the plate production line. Most of the existing production lines use roller conveyor lines, but the transfer in the existing conveyor lines is generally a single degree of freedom transfer, such as lifting transfer, rotation transfer, translation transfer, etc., which can only complete simple transfer functions and require a larger workshop, with low workshop utilization and low transfer efficiency. Summary of the invention

[0003] In view of this, the present invention proposes a multi-dimensional transfer system for a plate production line.

[0004] To achieve the above object, the present invention adopts the following technical solutions: The multi-dimensional transfer system for a plate production line described in the present invention includes a steel rail arranged on a workshop floor, and also includes a first moving mechanism that travels along the steel rail, a plurality of pairs of lifting mechanisms arranged on the first moving mechanism, and a second moving mechanism driven to rise and fall by the plurality of pairs of lifting mechanisms, wherein the conveying direction of the second moving machine is perpendicular to the moving direction of the first moving mechanism, the first moving mechanism includes a walking power source and a walking frame driven by the walking power source, the walking frame is a steel structure frame, which includes a plurality of first walking beams and a second walking beam connecting the plurality of first walking beams together, the walking power source is installed on the second walking beam, each of the first walking beams is provided with a driving wheel and a walking wheel, and the walking power source is connected to the driving wheel on each first walking beam through a first transmission shaft; the second moving mechanism includes a supporting frame for supporting a pallet and a pallet conveying mechanism arranged on the supporting frame, and the supporting frame is fixedly connected to the lifting seat of the plurality of pairs of lifting mechanisms. The beneficial effect is that the present invention uses the second moving mechanism to support the pallet, uses the first moving mechanism and the lifting mechanism to adjust the pallet in the X and Z directions, and uses the second moving mechanism to transport the pallet in the Y direction, thereby realizing flexible transportation of the pallet and improving the transportation efficiency of the pallet.

[0005] Preferably, the lifting mechanism includes a vertically arranged lifting power source and a lifting frame covered on the lifting power source, the power output end of the lifting power source is fixedly connected to the lifting seat, and the lifting seat is fixed to the bottom of the lifting frame; the lifting power source is any one of an electric cylinder, a pneumatic cylinder, a hydraulic cylinder and a screw stepper motor. In actual installation, for pallets with a larger load, the lifting power source is preferably an electric cylinder, and no additional gas station or hydraulic station is required. Of course, for pallets with a relatively light load, when there is an existing gas station in the workshop, a gas cylinder can also be used as the lifting power source.

[0006] Preferably, the lifting mechanism further comprises a guide assembly, wherein the guide assembly comprises a pair of guide columns vertically fixedly connected to the second walking beam, and the two guide columns are located outside the lifting frame; The guide assembly also includes two pairs of upper rollers matched one-to-one with the guide columns, each guide column has a pair of adjacent guide surfaces, and each pair of upper rollers is rollingly matched with the guide surfaces of the guide columns.

[0007] The beneficial effect is that the guide column of the present invention is preferably fixed to a square steel pipe on the walking frame, the angle between each pair of upper rollers on the lifting frame is 90 degrees, and the two upper rollers roll with the two adjacent guide surfaces of the guide column, thereby limiting the movement trajectory of the lifting frame and avoiding twisting during the lifting process.

[0008] Preferably, mounting seats are symmetrically arranged on the top of the lifting frame, and a pair of upper rollers are fixedly connected to each mounting seat. During actual installation, the axle of each upper roller is fixedly connected to the mounting seat through a vertical mounting plate to achieve a stable connection between the upper roller and the lifting frame.

[0009] Preferably, the tops of the two guide posts of each lifting mechanism are connected by a first connecting rod, and the first connecting rods of each pair of lifting mechanisms are connected by a second connecting rod. The beneficial effects are as follows: the present invention uses the first connecting rod (using a square steel tube) to connect the two guide posts of the lifting mechanism together, thereby improving the structural stability of the guide posts and avoiding the situation where the upper part tilts due to force; each pair of lifting mechanisms is fixed together by the second connecting rod (using a square steel tube), thereby reducing the influence of the tray position adjustment on the lifting mechanism.

[0010] Preferably, the travel power source is a travel motor and a travel reducer fixedly connected to the second travel beam, the travel reducer is a through-type reducer, and both ends of the output shaft of the travel reducer are connected to the axles of the plurality of driving wheels through the first transmission shaft. The present invention adopts a through-type reducer and a first transmission shaft to realize the mutual connection between the plurality of driving wheels and provide power for the transportation of the plate.

[0011] The pallet conveying mechanism includes a conveying power source, two rows of conveying rollers symmetrically arranged on the supporting frame, two transmission gears are arranged on the roller shaft of each conveying roller, and a plurality of conveying rollers in each row of conveying rollers are connected to each other by a transmission chain wound on the transmission gear. In the present invention, since the adjacent conveying rollers in each row of conveying rollers are connected to each other by a transmission chain, the transmission connection of each row of conveying rollers is realized, thereby meeting the stable conveying requirements of the pallet.

[0012] More preferably, the conveying power source includes a conveying motor and a conveying reducer, at least one driving gear is arranged on the output shaft of the conveying reducer, at least one conveying roller in each column of the conveying rollers is a driving roller, and a transmission gear on the driving roller is connected to the driving gear through a driving chain; the conveying rollers in the two columns of conveying rollers are connected one by one through multiple second transmission shafts.

[0013] Preferably, the supporting frame is a steel structure frame, which includes at least two first supporting beams parallel to the second walking beams and a plurality of second supporting beams connecting at least two of the first supporting beams together; the first supporting beam includes two supporting channel steels arranged back to back and a connecting channel steel that fixes the two supporting channel steels together, the roller shaft of each conveying roller in each row of the conveying rollers is rotatably connected to the two supporting channel steels one by one through a bearing seat, and the two transmission gears on each roller shaft are opposite to the avoidance space between the two supporting channel steels up and down.

[0014] The beneficial effects are: the supporting frame of the present invention is a steel structure frame to ensure the supporting performance; the first supporting beam adopts two supporting channel steels arranged back to back to provide a certain space for the transmission chain between the conveying rollers, thereby ensuring reliable transmission between the conveying rollers; furthermore, multiple connecting channel steels can realize the fixed connection of each pair of supporting channel steels on the one hand, and can also be fixedly connected with the moving seat, thereby realizing the fixed connection between the supporting frame and the lifting mechanism.

[0015] Preferably, the two ends of the rail are provided with a first proximity switch for monitoring the extreme position of the pallet in the X direction; the lifting mechanism includes a second proximity switch for monitoring the extreme position of the lifting frame in the Z direction; the second moving mechanism includes a third proximity switch for monitoring the extreme position of the pallet in the Y direction. In actual installation, there are two first proximity switches, two second proximity switches, and two third proximity switches, thereby achieving smooth transfer of the pallet on the transfer mechanism of the present invention.

[0016] Compared with the prior art, the advantages of the present invention are: The present invention utilizes the second moving mechanism to support the pallet, and can utilize the first moving mechanism and the lifting mechanism to realize the X-direction and Z-direction adjustment of the pallet. The second moving mechanism can realize the Y-direction conveyance of the pallet, thereby realizing the flexible transportation of the pallet, improving the transportation efficiency of the pallet, and thereby improving the processing efficiency of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a schematic diagram of the first moving mechanism in the present invention.

[0019] Figure 3 It is a structural schematic diagram of the lifting mechanism of the present invention.

[0020] Figure 4 yes Figure 3 Schematic diagram of the rollers and guide posts on the top of the middle lift.

[0021] Figure 5 Schematic diagram of the second moving mechanism of the present invention.

[0022] Figure 6 yes Figure 5 Enlarged view of part B in the middle.

[0023] Figure 7 yes Figure 1 Enlarged view of part A in the middle.

[0024] Figure 8 It is a connection diagram of the conveyor roller. DETAILED DESCRIPTION

[0025] The following is a detailed description of an embodiment of the present invention in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiment.

[0026] It should be noted that, in the description of the present invention, relational terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0027] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connection" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] It should be pointed out that in the present invention, Figure 1The direction of the middle rail is the X direction, the direction perpendicular to the rail is the Y direction, and the vertical direction is the Z direction. The definitions of these directions are only for a clearer description of the relative positional relationship between the various mechanisms, and do not represent the actual positional relationship.

[0029] like Figure 1 As shown, the present invention proposes a multi-dimensional transfer system for a plate production line, including a steel rail 1 (using an I-beam) arranged on the workshop floor, and also includes a first moving mechanism 2 that moves along the steel rail 1, multiple pairs of lifting mechanisms 3 arranged on the first moving mechanism 2 (four pairs of lifting mechanisms are shown in the figure, of course, they can be flexibly adjusted according to the needs of the production line and the workshop space), and a second moving mechanism 4 driven to lift and lower by the multiple pairs of lifting mechanisms 3; the first moving mechanism 2 moves in the X direction, driving the lifting mechanism 3 and the second moving mechanism 4 as well as the plate and its pallet on the second moving mechanism 4 to adjust the position in the X direction; the lifting mechanism 3 realizes the Z-direction adjustment of the plate and its pallet; the second moving mechanism 4 can adjust the plate and its pallet in the Y direction, realize the flexible transfer of the plate between different processes, improve the transfer efficiency of the plate, and then improve the loading and unloading efficiency of the plate, which is particularly suitable for plate processing lines with limited space.

[0030] Combination Figure 1-2 It can be seen that the first moving mechanism 2 includes a walking power source 2.1 and a walking frame driven by the walking power source 2.1, the walking frame and the walking power source 2.1 are connected by transmission, and the walking power source 2.1 provides walking power; the walking frame is a steel structure frame, which includes a plurality of first walking beams 2.2 (arranged in the X direction) and a second walking beam 2.3 (arranged in the Y direction) connecting the plurality of first walking beams 2.2 together, each of the first walking beams 2.2 is equipped with a driving wheel 2.4 (i.e., a driving walking wheel 2.5) and a walking wheel 2.5 that cooperate with the rail 1, and the walking wheel 2.5 and the driving wheel 2.4 are both stuck on the rail 1; The walking power source 2.1 is installed on one of the second walking beams 2.3, and includes a walking motor 2.1a and a walking reducer 2.1b connected to the walking motor 2.1a. The walking reducer 2.1b is a through-type reducer (i.e., it has two output ends). Each output end of the walking reducer 2.1b connects the axles of multiple driving wheels 2.4 together through multiple first transmission shafts 2.6 (two driving wheels 2.4 can be directly connected to the walking reducer 2.1b, and the driving wheels 2.4 can also be connected through the first transmission shafts 2.6), so that the walking frame is subjected to balanced force, thereby realizing smooth straight-line reciprocating movement of the walking frame.

[0031] During actual installation, the first transmission shaft 2.6 and the axle of the driving wheel 2.4, and the output end of the first transmission shaft 2.6 and the travel reducer 2.1b are connected through a coupling. Figure 2 .

[0032] Combination Figure 1 and Figure 3-4 It can be seen that the lifting mechanism 3 includes a vertically arranged lifting power source 3.1 and a lifting frame 3.2 covered on the lifting power source 3.1 (the present invention preferably does not require an electric cylinder of a gas station and a hydraulic station), that is, the electric cylinder is located in the lifting frame 3.2 (steel structure frame); a lifting seat 3.3 is fixedly connected to the power output end of the electric cylinder, one end of the lifting seat 3.3 extends to the bottom of the lifting frame 3.2 and is fixedly connected to the lifting frame 3.2, and the lifting frame 3.2 and the lifting seat 3.3 are lifted and lowered by the electric cylinder; Combination Figure 3-4 It can be seen that the lifting mechanism 3 also includes a guide assembly, which includes a pair of guide columns 3.4 (square steel pipes) vertically fixed to the second walking beam 2.3 and two pairs of upper rollers 3.5a that match the guide columns 3.4 one by one. The two guide columns 3.4 are located on the outside of the lifting frame 3.2, and each guide column 3.4 has a pair of adjacent guide surfaces. Each pair of upper rollers 3.5a rolls with the guide surfaces of the guide columns 3.4. Among them, since the angle between the guide surfaces of the guide columns 3.4 is 90 degrees, the angle of the central axis of each pair of upper rollers 3.5a is correspondingly 90 degrees. Each pair of upper rollers 3.5a clamps the guide column 3.4, thereby realizing the stable lifting of the lifting frame 3.2, avoiding tilting during the lifting process and affecting the lifting of the plate and its pallet; Combination Figure 3-4 It can be seen that each second walking beam 2.3 is fixedly connected with a plurality of bases 3.6 at intervals, the bottoms of the two guide columns 3.4 of each lifting mechanism 3 are fixed on the base 3.6, and the bottom of the electric cylinder is fixed on the base 3.6; Figure 3 It can be seen that the top of the lifting frame 3.2 is symmetrically provided with mounting seats 3.7, and each mounting seat 3.7 is fixedly connected with a pair of upper rollers 3.5a, wherein the wheel axles of the upper rollers 3.5a are fixed on the mounting seats 3.7 through the vertical plates, so as to realize the fixed installation of the upper rollers 3.5a. In order to ensure the smooth lifting of the lifting seat 3.3, two pairs of lower rollers 3.5b are also symmetrically provided at the bottom of the lifting frame 3.2, and the two pairs of lower rollers 3.5b are respectively matched with the guide columns 3.4. The combination of the upper rollers and the lower rollers 3.5b can limit the upper and lower positions of the lifting frame 3.2, ensure the stable lifting of the lifting frame, and further ensure the stable lifting of the lifting seat 3.3, so as to meet the stable lifting requirements of the plates and pallets.

[0033] In actual operation, since the electric cylinder is fixedly connected to the lifting seat 3.3, the electric cylinder can be powered on to drive the lifting seat 3.3 to rise and fall. During the lifting process, the upper roller 3.5a on the lifting frame 3.2 moves along the roller of the guide column 3.4 to ensure the smooth lifting of each lifting seat 3.3. In addition, when adjusting the height, multiple electric cylinders work synchronously to achieve the smooth lifting of the second moving mechanism 4. Of course, in actual installation, if the workshop conditions allow and on the basis of meeting the lifting requirements, a linear power source such as a cylinder or a hydraulic cylinder can also be used to replace the electric cylinder of the present invention.

[0034] Combination Figure 1 and Figure 3 It can be seen that the tops of the two guide posts 3.4 of each lifting mechanism 3 are connected by a first connecting rod 3.8, which improves the structural stability of the guide posts 3.4 and avoids the situation where the upper part tilts due to force; the first connecting rods 3.8 of each pair of lifting mechanisms 3 are connected by a second connecting rod 3.9, which reduces the influence of the position adjustment of the tray on the lifting mechanism 3. Among them, the first connecting rod 3.8 and the second connecting rod 3.9 are both made of square steel pipes, and the two ends of the second connecting rod 3.9 have fixed steel plates, which are fixed to the first connecting rod 3.8 by bolts.

[0035] Combination Figure 1 , 5 -8 It can be known that the second moving mechanism 4 can realize the Y-direction adjustment of the plate and its pallet. The second moving mechanism 4 includes a supporting frame 4.1 for supporting the pallet and a pallet conveying mechanism arranged on the supporting frame 4.1. The supporting frame 4.1 is fixedly connected to the lifting seats 3.3 of multiple pairs of lifting mechanisms 3; the pallet conveying mechanism includes a conveying power source 4.2, two rows of conveying rollers 4.3 (arranged at intervals in the Y direction) symmetrically arranged on the supporting frame 4.1, and two transmission gears 4.4 are arranged on the roller shaft of each conveying roller 4.3. The multiple conveying rollers 4.3 in each row of conveying rollers are connected to each other in pairs through multiple transmission chains 4.5, thereby realizing the transmission connection of each row of conveying rollers 4.3 to meet the stable conveying requirements of the pallet; the two rows of conveying rollers 4.3 are symmetrically arranged, and the two rows of conveying rollers 4.3 are connected one by one through the second transmission shaft 4.6 to realize the transmission connection of the two rows of conveying rollers 4.3, thereby realizing the synchronous rotation of the two rows of conveying rollers 4.3 to meet the smooth conveying requirements of the plate and its pallet.

[0036] Combination Figure 1 It can be seen that the conveying power source 4.2 includes a conveying motor and a conveying reducer. Two driving gears are arranged at intervals on the output shaft of the conveying reducer. The two conveying rollers 4.3 in each column of conveying rollers 4.3 are driving rollers. A transmission gear 4.4 on the two driving rollers is respectively connected to the two driving gears through a driving chain 4.7 to achieve the transmission connection between the conveying power source 4.2 and the conveying rollers 4.3. After the conveying power source 4.2 is powered on and started, the conveying power source 4.2 drives the driving gear to rotate, and drives the driving roller to rotate through the driving chain 4.7. The driving roller drives the conveying roller 4.3 in the column to rotate through the transmission chain 4.5. Since the two columns of conveying rollers 4.3 are connected one by one through the second transmission shaft 4.6, the two columns of conveying rollers 4.3 work synchronously, providing power for the Y-direction movement of the plate and its pallet, and realizing the Y-direction movement of the plate and its pallet.

[0037] During actual installation, the power source 4.2 is installed at the middle position of the supporting frame 4.1 in the Y direction to achieve power transmission. Of course, the power source 4.2 can also be installed at both ends of the supporting frame 4.1.

[0038] Combination Figure 5-7 It can be seen that the supporting frame 4.1 is a steel structure frame, which includes two first supporting beams 4.1b parallel to the second walking beam 2.3 and multiple second supporting beams 4.1a (steel plates or steel pipes can be used) connecting the two first supporting beams 4.1b together. The first supporting beam 4.1b includes two supporting channel steels 4.1b1 arranged back to back and a connecting channel steel 4.1b2 that fixes the two supporting channel steels 4.1b1 together, wherein the position of some connecting channel steels 4.1b2 corresponds to the lifting mechanism 3, and the first supporting beam 4.1b is fixedly connected to the lifting seat 3.3 of the lifting mechanism 3 by connecting the channel steel 4.1b2, thereby realizing the fixed installation between each lifting mechanism 3 and the supporting frame 4.1. In addition, the roller shaft of the conveying roller 4.3 is rotatably connected to the two supporting channel steels 4.1b1 one by one through the bearing seat, and the two transmission gears 4.4 on each roller shaft are opposite to the avoidance space between the two supporting channel steels 4.1b1. The two supporting channel steels 4.1b1 are arranged at a distance to provide a certain space for the transmission chain 4.5 between the conveying rollers 4.3.

[0039] During actual installation, the X, Y and Z directions each have two extreme positions, and the two ends of the rail 1 (i.e., the two X-direction extreme positions) are provided with a first proximity switch; the lifting mechanism 3 includes a second proximity switch for monitoring the extreme position of the lifting frame 3.2 in the Z direction; the second moving mechanism 4 includes a third proximity switch for monitoring the extreme position of the pallet in the Y direction. During actual installation, each extreme position has a proximity switch, and the signal output ends of the six proximity switches are connected to the signal input ends of the controller, and the control output end of the controller is connected to the control input ends of the travel power source 2.1, the lifting power source 3.1 and the conveying power source 4.2. When the plate and its pallet move to the extreme position, the controller controls the power source to stop moving, which has a safety protection function.

[0040] It should be pointed out that the above-mentioned controller can be a general-purpose processor, a special-purpose processor, a conventional processor, a digital signal processor (DSP), multiple microprocessors, one or more microprocessors associated with a DSP core, a controller, a microcontroller, an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) circuit, any other type of integrated circuit (IC) and a state machine, etc. It can also be a PLC controller or an industrial computer.

[0041] Furthermore, the controller may also be provided with a wireless communication module to achieve connection with a remote terminal, receive control instructions from the remote terminal, and also feedback relevant parameters of the real-time working status.

[0042] The present invention also provides a method for improving the efficiency of plate transfer in a plate production line, which adopts a multi-dimensional transfer system, including the following contents: a walking power source drives the multi-dimensional transfer system to move to the pallet exit of the previous process, and uses the lifting mechanism 3 to adjust the height of the supporting frame 4.1 to meet the pallet transfer requirements; after the height is adjusted to the right position, the conveying power source 4.2 is started, and the conveying power source 4.2 drives the two rows of conveying rollers 4.3 to rotate synchronously, so that the pallet enters the supporting frame 4.1 smoothly; then the power source is used to drive the multi-dimensional transfer system to move to the pallet entrance of the next process, the height of the supporting frame 4.1 is adjusted, and the conveying power source 4.2 is used to convey the pallet to make it enter the next process smoothly, so that the rapid transfer of the pallet between different processes can be completed, and the plate transfer efficiency is improved.

[0043] 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. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Therefore, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-dimensional transfer system for a plate production line, comprising a steel rail arranged on a workshop floor, characterized in that: The multi-dimensional transfer system also includes a first mobile mechanism that travels along the steel rail, multiple pairs of lifting mechanisms arranged on the first mobile mechanism, and a second mobile mechanism driven to rise and fall by the multiple pairs of lifting mechanisms, the conveying direction of the second mobile mechanism is perpendicular to the moving direction of the first mobile mechanism, the first mobile mechanism includes a walking power source and a walking frame driven by the walking power source, the walking frame is a steel structure frame, which includes multiple first walking beams and a second walking beam that connects the multiple first walking beams together, the walking power source is installed on the second walking beam, each of the first walking beams is provided with a driving wheel and a walking wheel, and the walking power source is connected to the driving wheel on each first walking beam through a first transmission shaft; the second mobile mechanism includes a supporting frame for supporting a pallet and a pallet conveying mechanism arranged on the supporting frame, and the supporting frame is fixedly connected to the lifting seats of the multiple pairs of lifting mechanisms.

2. The multi-dimensional transfer system for a plate production line according to claim 1, characterized in that: The lifting mechanism includes a vertically arranged lifting power source and a lifting frame covered on the lifting power source, the power output end of the lifting power source is fixedly connected to the lifting seat, and the lifting seat is fixed to the bottom of the lifting frame; the lifting power source is any one of an electric cylinder, a pneumatic cylinder, a hydraulic cylinder and a screw stepper motor.

3. The multi-dimensional transfer system for a plate production line according to claim 2, characterized in that: The lifting mechanism further includes a guide assembly, wherein the guide assembly includes a pair of guide posts vertically fixedly connected to the second walking beam, and the two guide posts are located outside the lifting frame; The guide assembly also includes two pairs of upper rollers matched one-to-one with the guide columns, each guide column has a pair of adjacent guide surfaces, and each pair of upper rollers is rollingly matched with the guide surfaces of the guide columns.

4. The multi-dimensional transfer system for a plate production line according to claim 3, characterized in that: The top of the lifting frame is symmetrically provided with mounting seats, and each of the mounting seats is fixedly connected with a pair of upper rollers.

5. The multi-dimensional transfer system for a plate production line according to claim 3, characterized in that: The tops of the two guide posts of each lifting mechanism are connected by a first connecting rod, and the first connecting rods of each pair of lifting mechanisms are connected by a second connecting rod.

6. The multi-dimensional transfer system for a plate production line according to claim 1, characterized in that: The walking power source is a walking motor and a walking reducer fixedly connected to the second walking beam. The walking reducer is a through-type reducer. Both ends of the output shaft of the walking reducer are connected to the wheel axles of the multiple driving wheels through the first transmission shaft.

7. The multi-dimensional transfer system for a plate production line according to claim 1, characterized in that: The tray conveying mechanism includes a conveying power source and two rows of conveying rollers symmetrically arranged on the supporting frame. Two transmission gears are arranged on the roller shaft of each conveying roller. The multiple conveying rollers in each row of conveying rollers are connected to each other through a transmission chain wound around the transmission gear.

8. The multi-dimensional transfer system for a plate production line according to claim 1, characterized in that: The conveying power source includes a conveying motor and a conveying reducer, at least one driving gear is arranged on the output shaft of the conveying reducer, at least one conveying roller in each column of the conveying rollers is a driving roller, and a transmission gear on the driving roller is connected to the driving gear through a driving chain; the conveying rollers in the two columns of conveying rollers are connected one by one through multiple second transmission shafts.

9. The multi-dimensional transfer system for a plate production line according to claim 8, characterized in that: The supporting frame is a steel structure frame, which includes at least two first supporting beams parallel to the second walking beams and multiple second supporting beams connecting at least two of the first supporting beams together; the first supporting beam includes two supporting channel steels arranged back to back and a connecting channel steel that fixes the two supporting channel steels together, the roller shaft of each conveying roller in each row of the conveying rollers is rotatably connected to the two supporting channel steels one by one through a bearing seat, and the two transmission gears on each roller shaft are opposite to the avoidance space between the two supporting channel steels in the upper and lower directions.

10. The multi-dimensional transfer system for a plate production line according to claim 3, characterized in that: The two ends of the rail are provided with a first proximity switch for monitoring the extreme position of the pallet in the X direction; the lifting mechanism includes a second proximity switch for monitoring the extreme position of the lifting frame in the Z direction; the second moving mechanism includes a third proximity switch for monitoring the extreme position of the pallet in the Y direction.

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