High-precision loading system

Abstract

The invention provides a high-precision loading system which comprises a platform, a guide part extending in the axial direction is arranged in the middle of the top of the platform in a protruding mode, and clamping parts driven by clamping driving assemblies are arranged on the left side and the right side of the front end of the platform correspondingly; the supporting mechanism is arranged at the bottom of the platform and used for driving the platform to move to be coaxially in butt joint with the corresponding compartment, the two clamping pieces are used for clamping and fixing the compartment through opposite movement or separating from the compartment through opposite movement, and a cargo carrying mechanism used for carrying cargoes and driven by a transverse movement driving device to transversely move is arranged on one side. Walking wheel sets and swinging wheel sets distributed front and back and a plurality of guiding wheel sets distributed front and back are arranged at the bottom of the carrying vehicle body, the walking wheel sets are driven by a walking driving device to rotate front and back, the swinging wheel sets are driven by a rotating driving device to swing left and right, and the guiding wheel sets are arranged at intervals and abut against the left side and the right side of the guiding part in a rolling mode. Distance sensing devices are arranged on the left and right sides of the carrying vehicle body respectively. The cargo boxing stability and accuracy can be improved, and the boxing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of vehicle loading systems, and in particular to a high-precision vehicle loading system. Background Art

[0002] The loading system is mainly used to move the goods into the container and realize the automatic loading function. The loading system mainly includes a lifting platform for docking with the container, a transport trolley running on the lifting platform, and a gantry transport mechanism for moving the stacked goods to the lifting platform and placing them on the fork frame of the transport trolley.

[0003] Due to the volume limitation of containers, the higher the loading accuracy, the larger the cargo capacity, and the more stable the cargo transportation process. This requires meeting the requirements of high packing accuracy and small stacking gap. For example, in the existing loading of barreled goods, a stack of goods includes two layers of four barrels in each layer and a stack width of 1170mm. The standard container door width is 2343mm. After a stack of goods is packed, the remaining width in the same row in the carriage is 1173, which means that the gap between the next stack of goods and the previous stack of goods when loading is only 3mm. Therefore, when one side of the same row of the carriage has been filled with goods, the transport trolley body needs to be straightened until the fork frame is coaxial with the container to ensure that the fork frame can accurately load the goods into the empty space for stacking. Especially when stacking the last few rows of goods, the space left for the fork frame to enter the container is very narrow.

[0004] However, the existing transport carts generally only have the function of obstacle avoidance and walking, and the steering of the vehicle body is mainly achieved by differential rotation between the front wheels on both sides. This makes it difficult to automatically align the body of the existing transport cart, and requires manual intervention or multiple adjustments. As loading progresses, lateral relative displacement is likely to occur between the lifting platform and the carriage, and the goods loaded on the lifting platform of the transport cart cannot be ensured to be in the middle position of the fork frame, which results in the transport cart fork frame being unable to extend into the empty space in the carriage for stacking when loading. Continuous adjustments are required to align the vehicle body, resulting in low loading efficiency.

[0005] The purpose of this invention is to design a high-precision loading system in view of the problems existing in the above-mentioned prior art. Summary of the invention

[0006] The present invention provides a high-precision loading system, which can effectively solve the above problems.

[0007] The present invention is achieved in that:

[0008] A high-precision loading system, comprising:

[0009] The platform has a top middle protrusion with a guide member extending in the axial direction, and the left and right sides of the front end of the platform are respectively provided with clamping members driven by the clamping drive assembly to move toward or in opposite directions;

[0010] A support mechanism is provided at the bottom of the platform, the support mechanism is used to drive the platform to move to coaxially dock with the corresponding carriage, and the two clamping members are used to move towards each other to clamp and fix the carriage or move in the opposite direction to detach from the carriage;

[0011] The transport vehicle body has a cargo-carrying mechanism on one side for carrying cargo and driven by a transverse driving device for transverse movement. A traveling wheel group and a swing wheel group distributed front and rear are provided at the bottom of the transport vehicle body, as well as a plurality of guide wheel groups distributed front and rear. The traveling wheel group is driven by the traveling driving device to rotate front and rear, and the swing wheel group is driven by the rotating driving device to swing left and right. The spacing between each group of guide wheel groups is set and they are rolled against the left and right sides of the guide member. Distance sensing devices are respectively provided on the left and right sides of the transport vehicle body.

[0012] Furthermore, there are two traveling wheel groups and they are arranged on the left and right sides of the front of the transport vehicle body, there is one sway wheel group and they are arranged on the rear side of the middle part of the transport vehicle body axis, the sway wheel groups are arranged at intervals and distributed on the left and right sides of the guide member, there are two guide wheel groups and they are a front guide wheel group and a rear guide wheel group distributed front and back in the middle part of the transport vehicle body axis respectively, the front guide wheel group is arranged on the rear side of the two traveling wheel groups, and the rear guide wheel group is arranged on the rear side of the sway wheel group.

[0013] Furthermore, the guide member includes a plurality of guide blocks and a positioning block which are sequentially abutted from back to front along the center line of the platform axis. The guide blocks and the positioning blocks are both screwed on the top of the platform, and the left and right widths of the positioning blocks gradually decrease towards the direction approaching the carriage.

[0014] The camshaft is an axially movable member which is adapted to move relative to the camshaft and to move relative to the guide rail. The camshaft is a member which is adapted to move relative to the camshaft and to move relative to the guide rail. The camshaft is a member which is adapted to move relative to the camshaft and to move relative to the guide rail.

[0015] Furthermore, the clamping drive assembly is provided with two groups and is symmetrically arranged at the front end of the platform. One of the clamping drive assemblies includes a mounting base fixedly arranged on the side of the platform, a clamping cylinder with one end hinged to the inner side of the mounting base and the other end movably passing through the mounting base and hinged to the clamping part, a plurality of sliding sleeves fixedly passing through the side wall of the mounting base, a plurality of sleeve rods with one end respectively connected to the clamping parts and the other end respectively sliding through the sliding sleeves, and a plurality of limit rods with one end respectively connected to the clamping parts and the other end respectively sliding through the mounting base and set at a limit position behind the mounting base.

[0016] Furthermore, the two clamping parts each include a connecting part respectively connecting one end of the plurality of sliding sleeves and the other end of the clamping cylinder, the two connecting parts extend toward the front to protrude from the rear of the platform and are respectively fixed with clamping blocks on the opposite sides, the plurality of sleeve rods, the plurality of limit rods, and a clamping cylinder are arranged side by side front and back and are respectively connected to the rear of the connecting parts; after the two clamping parts move toward each other, the two clamping blocks are clamped and fixed on the left and right sides of the rear end of the carriage.

[0017] Furthermore, the support mechanism is provided with two and is respectively arranged at the bottom of the front and rear ends of the platform, each of the support mechanisms includes a support seat fixedly provided on the ground, two telescopic pillars distributed on the left and right, and a sliding seat connected to the lower ends of the two telescopic pillars and slidably provided on the support seat left and right, and a transverse cylinder for driving the sliding seat to move horizontally left and right is provided on the support seat, and a limit cover is provided on the top middle part of the support seat and is covered on the outside of the sliding seat, and a plurality of limit rollers are provided on the side wall of the limit cover and the inner side rolls and abuts against the outer wall of the sliding seat, and the telescopic pillar is driven by the lifting cylinder to lift up and down.

[0018] Furthermore, the top of the platform includes adjustment areas located on the left and right sides and the front side of one of the positioning blocks, and positioning areas located on the left and right sides of the plurality of guide blocks. The adjustment area is recessed with a plurality of mounting grooves for mounting a universal adjustment device. The universal adjustment device includes a limit seat fixed in the mounting groove, a lifting seat slidably sleeved in the limit seat, and a ball rotatably embedded in the top of the lifting seat. The lifting seat and the limit seat are connected by an elastic member, and the upper part of the ball is exposed and protrudes from the upper side of the adjustment area. When the transport vehicle enters the platform from front to back and the walking wheel group passes over the plurality of balls, it is guided by the rolling of the plurality of balls and then sways backward.

[0019] Furthermore, the top of the platform is provided with two raised tracks which are located on the left and right sides of the guide member and have a slope at the front end. The top of the positioning block is inclined to form a guide surface which gradually increases in height from front to back. The bottom of the transport vehicle body is provided with a plurality of steering wheels which respectively correspond to each group of the guide wheel groups and rotate laterally. When the transport vehicle body enters the platform from front to back, the swing wheel group is positioned to the left and right sides of the plurality of guide blocks by the positioning block and rolls on the two raised tracks. A plurality of guide wheel groups are rolled against the left and right sides of the guide member. A plurality of steering wheels are steered to the left and right by the guide wheel groups and are rolled and lifted to the tops of the plurality of guide blocks by the guide surface. The transport vehicle body is lifted as a whole and the walking wheel group is suspended.

[0020] Furthermore, the top of the platform includes an adjustment area located on the left and right sides of one of the positioning blocks and an alignment area located on the left and right sides of several of the guide blocks. The alignment area is provided with a support pad corresponding to the walking wheel group and with a slope at the front end, and the supporting heights of the lifting rail and the support pad are the same; after the transport vehicle body is lifted as a whole, the walking wheel group is suspended when entering the adjustment area, and rolls against the support pad when entering the alignment area.

[0021] The beneficial effects of the present invention are:

[0022] 1. By adding clamping parts, after the support mechanism drives the platform to move to be coaxially opposite to the corresponding carriage and the front end is docked with the rear end of the carriage, the clamping drive assembly can be used to drive the two clamping parts to move toward each other to clamp and fix the carriage, so that the platform and the carriage always remain coaxially opposite to each other during loading. On this basis, through the cooperation between the guide parts and a plurality of guide wheel groups, the transport body of the transport vehicle is always coaxially opposite to the carriage during the process of walking on the platform and entering the carriage, and the feeding mechanism can accurately place the goods in the center of the cargo loading mechanism, and through the cooperation between the running wheel group that rotates back and forth and the swinging wheel group that swings left and right and the distance sensing device, the transport body of the transport vehicle is not skewed due to the unevenness of the carriage floor when entering the carriage The trolley can be quickly adjusted back to the center position by swinging the trolley wheel group left and right, thereby ensuring that the transport body is always coaxially facing the carriage during loading, so as to ensure that when one side of the same row of the carriage has been filled with goods, the transport body can carry the next batch of goods to the right position and the next batch of goods can be loaded into the empty space after the loading mechanism moves horizontally. When loading the last row of goods closest to the carriage door, the transport body of the transport body can be restricted by the guide parts and several groups of guide groups on the platform to ensure that it is facing the carriage, and only the loading mechanism moves horizontally to pack the goods, which greatly improves the stability and accuracy of cargo packing, improves the packing efficiency, and avoids the situation where the transport body is skewed and the loading mechanism hits and damages the goods in the box or the side wall of the container during loading.

[0023] 2. By placing the rear guide wheel group and the front guide wheel group behind the swing wheel group and the running wheel group respectively, when the transport vehicle body is retreated from the carriage to the platform, the swing wheel group is ensured to move accurately to both sides of the guide member through the limit cooperation between the rear guide wheel group and the guide member, and the two running wheel groups are ensured to move accurately to both sides of the guide member through the limit cooperation between the front guide wheel group and the guide member, thereby improving the guiding stability and accuracy of the guide wheel group.

[0024] 3. The guide member is divided into several guide blocks and a positioning block, so that the guide member can also be installed and used on the existing lifting platform, which greatly reduces the cost of adding the guide member. In addition, through the positioning and guiding function of the positioning block, the rear guide wheel can smoothly roll to the left and right sides of several guide blocks after contacting it, avoiding the situation of guide jamming, thereby improving the practicality of the guide member.

[0025] 4. By adding a guide structure, the two front guide wheels and the two rear guide wheels can be elastically rolled and clamped on the left and right sides of a number of guide blocks, and the relative displacement between the two front guide wheels and the two rear guide wheels is the same through the linkage limit of the guide rod, the guide block and the two connecting rods, so as to ensure that the front guide wheel group and the rear guide wheel group are always coaxially facing the car body when rolling and clamping on both sides of the guide block. Under the premise of ensuring the guiding accuracy of the front guide wheel group and the rear guide wheel group, the rolling clamping spacing between the front guide wheels and the rear guide wheels can be adjusted, thereby improving the adaptability of the guide wheel group.

[0026] 5. A plurality of sleeve rods are used to stably guide the two clamping parts to move toward or in opposite directions. The other end of the clamping cylinder is movably inserted into the mounting seat, and the fixed sliding sleeve and the sleeve rod slidingly inserted into the sliding sleeve cooperate with each other, and the plurality of limit rods are radially abutted with the mounting seat, so that the force of the two clamping parts after clamping toward each other can be transmitted to the mounting seat through the radial abutment between the sleeve rod and the sliding sleeve and then dispersed, so as to assist in dispersing the force of the telescopic end of the clamping cylinder, thereby improving the clamping stability of the clamping parts and the service life of the clamping cylinder; at the same time, the connection points of the clamping parts are increased by adding a connecting part for connecting with a plurality of sleeve rods and a clamping cylinder arranged side by side in the front and rear, and when the two clamping blocks are subjected to opposite pressures when clamping the carriages toward each other, so that the two connecting parts have a tendency to move toward each other and backward, the plurality of sleeve rods can assist the clamping cylinder to support the connecting parts at multiple points from front to back through the radial abutment with the sliding sleeve and the radial abutment with the plurality of limit rods and the mounting seat, thereby further improving the clamping stability of the clamping parts.

[0027] 6. When the transport vehicle body enters the platform from the front to the back and the front part of the transport vehicle body is skewed to a certain extent, the rolling contact limit between the front guide wheel group and the guide member allows the walking wheel group to swing after being guided by the rolling of the balls when passing through the balls, thereby straightening the front end of the transport vehicle body, and the balls are compressed and retracted, and are driven to reset by the elastic member after the walking wheel group passes through. The front of the transport vehicle body is thereby guided in a rolling manner by the arrangement of a number of universal adjustment devices, so that the walking wheel set does not generate friction with the platform, but is swung in a manner that generates rolling friction with a number of ball bearings, thereby avoiding forced straightening of the front of the transport vehicle body by the rolling abutment cooperation of the guide wheel set and the guide member, which may cause damage to the guide wheel set or damage to the walking wheel set due to friction with the top of the platform, which may cause the guide wheel set to shift or the walking wheel set to deviate, resulting in the transport vehicle body being unable to maintain a coaxial setting with the carriage on the platform, thereby improving the stability of the transport vehicle body when reversing from front to rear onto the platform and cooperating with the guide member, ensuring that the cooperation between the guide wheel set and the guide member can be achieved stably and smoothly, ensuring that the transport vehicle body can maintain a coaxial setting with the carriage on the platform when loading next time, thereby improving the adaptability of the platform to coaxially guide the transport vehicle body.

[0028] 7. By adding elevated guide rails and a number of steering wheels, when the transport vehicle enters the platform from front to back and the front part of the transport vehicle is skewed to a certain extent, the two steering wheels can be positioned to the left and right sides of a number of guide blocks by the positioning blocks and roll on the two elevated rails to elevate the rear end of the transport vehicle. A number of guide wheel groups are rolled against the left and right sides of the guide members, and a number of steering wheels are rolled and lifted to the top of a number of guide blocks by the left and right limited steering of the guide wheel groups and the guidance of the guide surfaces, so as to elevate the front end of the transport vehicle and allow the walking wheel groups to be suspended. The front end swing direction of the transport vehicle body is controlled by the rolling abutment limit between the front guide wheel group and the positioning block, and the steering wheel is turned on the positioning block, and is not hindered by the walking wheel group set in the air, thereby avoiding the damage of the guide wheel group or the friction between the walking wheel group and the top of the platform by forcibly swaying the front of the transport vehicle body through the rolling abutment cooperation between the guide wheel group and the guide member, which may cause the guide wheel group to be offset or the walking wheel group to travel in a biased direction, so that the transport vehicle body cannot remain coaxial with the car body on the platform. The stability of the transport vehicle body when reversing from front to back onto the platform and cooperating with the guide member is improved, ensuring that the cooperation between the guide wheel group and the guide member can be achieved stably and smoothly, ensuring that the transport vehicle body remains coaxial with the car body on the platform when loading next time, and improving the adaptability of the platform to coaxially guide the transport vehicle body.

[0029] 8. By adding support pads, after the transport vehicle body is lifted as a whole, the traveling wheel set is suspended when entering the adjustment area, and rolls against the support pads when entering the alignment area. Therefore, when the front end of the transport vehicle body is aligned and enters the alignment area, the traveling wheel set can be supported by the support pads, so that the transport vehicle body as a whole is supported by the swing wheel set, the traveling wheel set, and the steering wheel, thereby improving the support stability of the transport vehicle body. On the premise of realizing the swing of the front end of the transport vehicle body, the support stability of the transport vehicle body when loading is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the loading system of Example 1.

[0031] Figure 2 for Figure 1 A local enlarged schematic diagram of point A in the middle.

[0032] Figure 3 It is a schematic structural diagram of a transport vehicle body according to the first embodiment.

[0033] Figure 4 It is a schematic structural diagram of the oscillating wheel set in the first embodiment.

[0034] Figure 5 It is a schematic structural diagram of a transport vehicle body according to the first embodiment.

[0035] Figure 6 It is a structural schematic diagram of the platform of Example 1.

[0036] Figure 7 It is a schematic structural diagram of the clamping drive assembly and the clamping member of the first embodiment.

[0037] Figure 8 It is a schematic structural diagram of the transport vehicle body of the second embodiment.

[0038] Fig. 9 for Figure 8 Schematic diagram of the exploded structure of the middle guide wheel group.

[0039] Fig.10 It is a structural schematic diagram of the loading system of Example 3.

[0040] Fig.11 It is a structural diagram of the platform of Example 3.

[0041] Fig.12 It is a structural schematic diagram of the universal adjustment device of embodiment 3.

[0042] Fig.13 for Fig.12 Schematic diagram of the cross-sectional structure.

[0043] Fig.14 It is a structural schematic diagram of the loading system of Example 4.

[0044] Fig.15 It is a structural schematic diagram of the platform of Example 4.

[0045] Fig.16 It is a schematic structural diagram of the transport vehicle body of the fourth embodiment. DETAILED DESCRIPTION

[0046] Embodiment 1

[0047] Reference Figure 1-7 As shown, a high-precision loading system comprises:

[0048] The platform 1 has a top middle protrusion with a guide member 11 extending in the axial direction, and the left and right sides of the front end of the platform 1 are respectively provided with clamping members 12 driven by a clamping driving assembly 13 to move toward or in opposite directions;

[0049] A support mechanism 2 is provided at the bottom of the platform 1, and the support mechanism 2 is used to drive the platform 1 to move to coaxially dock with the corresponding carriage 9, and the two clamping members 12 are used to move towards each other to clamp and fix the carriage 9 or move in the opposite direction to detach from the carriage 9;

[0050] The transport vehicle body 3 has a cargo-carrying mechanism on one side for carrying cargo and driven to move laterally by a transverse driving device 35. A traveling wheel group 4 and a swing wheel group 5, as well as several groups of guide wheel groups 6 distributed front and back, are provided at the bottom of the transport vehicle body 3. The traveling wheel group 4 is driven to rotate forward and backward by a traveling driving device 41, and the swing wheel group 5 is driven to swing left and right by a rotating driving device 51. The spacing between each group of guide wheel groups 6 is set and rollingly abuts against the left and right sides of the guide member 11. Distance sensing devices are respectively provided on the left and right sides of the transport vehicle body 3. Specifically, the traveling driving device 41 includes a motor and a belt connecting the rotating driving end of the motor and the traveling wheel. The distance sensing device is a photoelectric sensor.

[0051] Specifically, the loading system also includes a gantry 31 handling mechanism for transporting the goods to the platform 1 and placing the goods on the fork frame 32 of the transport vehicle body 3.

[0052] The above-mentioned structure is set up by adding the clamping parts 12. After the support mechanism 2 drives the platform 1 to move to be coaxially opposite to the corresponding carriage 9 and the front end is connected to the rear end of the carriage 9, the clamping drive assembly 13 can be used to drive the two clamping parts 12 to move towards each other to clamp and fix the carriage 9, so that the platform 1 and the carriage 9 always remain coaxially opposite during loading. On this basis, through the cooperation between the guide parts 11 and a plurality of groups of guide wheel groups 6, the transport body 3 of the transport vehicle 3 is always coaxially opposite to the carriage 9 during the process of walking on the platform 1 to entering the carriage 9, and the feeding mechanism can accurately place the goods in the center on the loading mechanism, and through the cooperation between the running wheel group 4 rotating forward and backward and the swinging wheel group 5 swinging left and right and the distance sensing device, the transport body 3 of the transport vehicle 3 enters the carriage 9 and is protected by the bottom of the carriage 9. When the transport vehicle 3 is skewed due to the unevenness of the plate, it can be quickly adjusted back to the right position by swinging the swing wheel group 5 left and right, thereby ensuring that the transport vehicle body 3 is always coaxial with the carriage 9 during loading, so as to ensure that the transport vehicle body 3 can transport the next batch of goods to the right position when one side of the same row of the carriage 9 has been filled with goods, and the next batch of goods can be loaded into the empty space positively after the loading mechanism moves horizontally, and when loading the last row of goods closest to the door of the carriage 9, the transport vehicle body 3 can be restricted by the guide members 11 and several groups of guide groups on the platform 1 to ensure that it is opposite to the carriage 9, and only the loading mechanism moves horizontally to pack the goods, which greatly improves the stability and accuracy of the goods packing, improves the packing efficiency, and avoids the situation where the transport vehicle body 3 is skewed and the loading mechanism hits and damages the goods in the box or the side wall of the container during loading.

[0053] In order to improve the adjustment efficiency of the sway wheel group 5 for aligning the transport vehicle 3, the number of the walking wheel groups 4 is two and they are arranged on the left and right sides of the front of the transport vehicle 3, the number of the sway wheel groups 5 is one and they are arranged on the rear side of the middle of the axis of the transport vehicle 3, the spacing between the sway wheel groups 5 is set and distributed on the left and right sides of the guide member 11, so that the sway wheel group 5 arranged in the middle can achieve the effect of swaying the rudder to quickly adjust the transport vehicle 3 to align the transport vehicle 3; in order to improve the guiding effect of the guide wheel group 6, the number of the guide wheel group 6 is two and they are respectively the front guide wheel group 61 and the rear guide wheel group 61 distributed in the middle of the axis of the transport vehicle 3. The guide wheel group 62, the front guide wheel group 61 is arranged on the rear side of the two groups of running wheel groups 4, and the rear guide wheel group 62 is arranged on the rear side of the swing wheel group 5, so that by placing the rear guide wheel group 62 and the front guide wheel group 61 on the rear side of the swing wheel group 5 and the rear side of the running wheel group 4 respectively, during the process of the transport vehicle 3 retreating from the carriage 9 to the platform 1, the swing wheel group 5 is ensured to be accurately moved to the two sides of the guide member 11 through the limiting cooperation between the rear guide wheel group 62 and the guide member 11, and the two groups of running wheel groups 4 are ensured to be accurately moved to the two sides of the guide member 11 through the limiting cooperation between the front guide wheel group 61 and the guide member 11, thereby improving the guiding stability and accuracy of the guide wheel group 6.

[0054] In order to improve the stability of the swinging direction of the swinging wheel group 5, the swinging wheel group 5 includes two steering wheels 53 connected by a steering seat 52 and distributed on the left and right sides of the guide member 11. The steering seat 52 is rotatably connected to a fixed seat 54 installed at the bottom of the transport vehicle body 3. The outer side of the steering seat 52 is sleeved with an outer gear ring 521. The rotation drive device 51 is arranged on the side of the fixed seat 54 and the driving end is meshed with the outer teeth of the outer gear ring 521 through a driving gear 511. A travel motor 541 for driving the two steering wheels 53 to rotate and walk is arranged in the fixed seat 54. Specifically, the travel motor 541 is a servo motor. Therefore, the steering wheel 53 is driven to swing through the meshing between the gear 511 and the outer gear ring 521, and the steering wheel 53 is driven to rotate and walk through the travel motor 541, thereby improving the swinging direction stability and walking stability of the steering wheel 53, thereby improving the swinging direction stability of the swinging wheel group 5.

[0055] Specifically, the cargo loading mechanism includes a gantry 31 and a fork frame 32. The gantry 31 is rotatably arranged at the front side of the transport vehicle body 3 and is driven to rotate by a pitch cylinder 33. The gantry 31 includes a longitudinal drive device 34 and a transverse drive device 35. The fork frame 32 is arranged at the front end of the gantry 31 and is driven to rise and fall by the longitudinal drive device 34 and to move left and right by the transverse drive device 35.

[0056] In order to improve the stability of the lateral movement of the fork frame 32, the driving end of the longitudinal drive device 34 is connected to the lifting frame 341, and the lateral movement drive device 35 includes a ball screw arranged on the lifting frame 341 and a screw motor driving the ball screw to rotate. The fork frame 32 is screwed to the ball screw through a screw connection.

[0057] Since the lifting platforms 1 used in the existing loading systems are relatively mature, it is costly to directly replace the entire lifting platform 1. Therefore, in order to reduce the additional cost of the guide member 11, the guide member 11 includes a plurality of guide blocks 111 and a positioning block 112 that are sequentially abutted and distributed along the centerline of the platform 1 axis from back to front. The guide blocks 111 and the positioning blocks 112 are both screwed on the top of the platform 1, and the left and right widths of the positioning blocks 112 gradually decrease toward the direction close to the carriage 9. Thus, the guide member 11 is divided into a plurality of guide blocks 111 and a positioning block 112, so that the guide member 11 can also be installed and used on the existing lifting platform 1, which greatly reduces the additional cost of the guide member 11. Moreover, through the positioning and guiding function of the positioning block 112, the rear guide wheel can smoothly roll to the left and right sides of the plurality of guide blocks 111 after contacting it, avoiding the situation of guide jamming, and improving the practicality of the guide member 11.

[0058] In order to improve the clamping stability of the clamping piece 12, the clamping drive assembly 13 is provided with two groups and is symmetrically arranged at the front end of the platform 1. One of the clamping drive assemblies 13 includes a mounting seat 131 fixedly arranged on the side of the platform 1, a clamping cylinder 132 of which one end is hinged to the inner side of the mounting seat 131 and the other end movably passes through the mounting seat 131 and then hinged to the clamping piece 12, a plurality of sliding sleeves 133 fixedly passed through the side wall of the mounting seat 131, a plurality of sleeve rods 134 of which one end is respectively connected to the clamping piece 12 and the other end slides through the sliding sleeves 133 respectively, and a plurality of limit rods 135 of which one end is respectively connected to the clamping piece 12 and the other end slides through the mounting seat 131 and then limit the position. Specifically, the mounting seat 131 is configured to be L-shaped with an opening facing inward, and the inner diameter of the through hole on the side wall of the mounting seat 131 is larger than the outer diameter of the clamping cylinder 132. The two clamping parts 12 are stably guided for the toward or opposite movements by a plurality of sleeve rods 134, and the other end of the clamping cylinder 132 is movably passed through the mounting seat 131, and through the cooperation between the fixed sliding sleeve 133 and the sleeve rod 134 sliding through the sliding sleeve 133, and the radial abutment between a plurality of limit rods 135 and the mounting seat 131, the force applied after the two clamping parts 12 are clamped toward each other can be transmitted to the mounting seat 131 through the radial abutment between the sleeve rod 134 and the sliding sleeve 133 and then dispersed, so as to assist in dispersing the force applied to the telescopic end of the clamping cylinder 132, thereby improving the clamping stability of the clamping parts 12 and the service life of the clamping cylinder 132.

[0059] In order to further improve the clamping stability of the clamping parts 12, the two clamping parts 12 each include a connecting part 121 respectively connected to one end of the plurality of sliding sleeves 133 and the other end of the clamping cylinder 132, the two connecting parts 121 extend toward the front to protrude from the rear of the platform 1, and clamping blocks 122 are respectively fixed on the opposite sides, a plurality of sleeve rods 134, a plurality of limit rods 135, and a clamping cylinder 132 are arranged side by side front and back and are respectively connected to the rear of the connecting part 121; after the two clamping parts 12 move toward each other, the two clamping blocks 122 are clamped and fixed on the left and right sides of the rear end of the carriage 9. Thus, by adding a connecting part 121 for connecting with a plurality of sleeve rods 134 and a clamping cylinder 132 arranged side by side in the front and rear, the connection points of the clamping piece 12 are increased. When the two clamping blocks 122 are subjected to opposite pressures when clamping the carriage 9 toward each other, so that the two connecting parts 121 have a tendency to move toward each other and backward, the plurality of sleeve rods 134 can assist the clamping cylinder 132 in supporting the connecting part 121 at multiple points from front to back through radial abutment with the sliding sleeve 133 and radial abutment with the plurality of limit rods 135 and the mounting seat 131, thereby further improving the clamping stability of the clamping piece 12.

[0060] In order to accurately dock the carriage 9, the top front end of the platform 1 is rotatably provided with a cover plate 19 corresponding to the top of the two mounting seats 131; after the front end of the platform 1 docks with the rear end of the carriage 9, the cover plate 19 is rotated to cover until the end is abutted against the rear end of the bottom of the carriage 9. The rotatable cover plate 19 can also improve the convenience of maintenance and replacement of the clamping drive assembly 13.

[0061] Specifically, the support mechanism 2 is provided with two and is respectively arranged at the bottom of the front and rear ends of the platform 1, each of the support mechanisms 2 includes a support seat 21 fixed to the ground, two telescopic pillars 22 distributed on the left and right, and a sliding seat 23 connected to the lower ends of the two telescopic pillars 22 and slidably arranged on the support seat 21 left and right. Specifically, a plurality of sliding rollers are rotatably arranged at the bottom of the sliding seat 23, and a transverse cylinder 24 for driving the sliding seat 23 to move horizontally left and right is provided on the support seat 21. A limit cover 25 is provided at the top middle part of the support seat 21 and is covered on the outside of the sliding seat 23. A plurality of limit rollers 26 whose inner sides roll and abut against the outer wall of the sliding seat 23 are rolled through the side wall of the limit cover 25, and the telescopic pillar 22 is driven by a lifting cylinder 27 to lift up and down. The limiting cover 25 is provided to limit and guide the left and right sliding of the sliding seat 23, and the limiting rollers 26 are provided to avoid friction between the sliding seat 23 and the limiting cover 25 and thus improve the stability of the left and right sliding of the sliding seat 23.

[0062] Embodiment 2

[0063] refer to Figure 8-9 The difference between this embodiment and the first embodiment is that:

[0064] The guide member 11 is divided into a plurality of guide blocks 111 and a positioning block 112. Although the installation cost of the guide member 11 is greatly reduced, there is a certain error in the production process of the guide block 111, and it is difficult to achieve 100% uniform correspondence of its width. Therefore, after the plurality of guide blocks 111 are centrally installed on the platform 1, the widths on the left and right sides will be inconsistent. Therefore, in order to ensure that the guide wheel group 6 can accurately roll and fit the sides of the plurality of guide blocks 111 for guidance, two guide structures 7 symmetrically distributed front and back are fixed at the bottom of the transport vehicle body 3. Each of the guide structures 7 includes a guide seat 71. A guide rod 72 extending front and back is provided in the guide seat 71, a guide block 73 slidably sleeved on the guide rod 72, and a spring fixed at one end and connected to the guide block 73 at the other end. A spring 74, a sliding rod 75 extending left and right, two sliding blocks slidably mounted on the sliding rod 75, and two connecting rods 76 hinged at one end to the two sliding blocks and hinged at the other end to the guide block 73. Specifically, the guide rod 72 and the sliding rod 75 are perpendicular to each other, one end of the spring 74 is fixed to the inner wall of the guide seat 71, and the other end is tightened and fixed to the side of the guide block 73 away from the sliding rod 75. The bottom of the guide seat 71 is penetrated by a sliding hole extending left and right. The front guide wheel group 61 includes two sliding holes of the guide seat 71 that slide through the front side and are connected to the rotating shaft of the slider, and two front guide wheels that are rotatably mounted on the lower end of the rotating shaft. The rear guide wheel group 62 includes two sliding holes of the guide seat 71 that slide through the rear side and are connected to the rotating shaft of the slider, and two rear guide wheels that are rotatably mounted on the lower end of the rotating shaft. Therefore, by adding the guide structure 7, the two front guide wheels and the two rear guide wheels can be elastically rolled and clamped on the left and right sides of the plurality of guide blocks 111, and through the linkage limit of the guide rod 72, the guide block 73, and the two connecting rods 76, the relative displacement between the two front guide wheels and the two rear guide wheels is made the same, so as to ensure that the front guide wheel group 61 and the rear guide wheel group 62 are always coaxially facing the car body 9 when rolling and clamping on both sides of the guide block 111. Under the premise of ensuring the guiding accuracy of the front guide wheel group 61 and the rear guide wheel group 62, the rolling clamping spacing between the front guide wheels and the rear guide wheels can be adjusted, thereby improving the adaptability of the guide wheel group 6.

[0065] It should be pointed out that the implementation principle and technical effects of this embodiment are the same as those of Embodiment 1. For the sake of brief description, for matters not mentioned in this embodiment, reference may be made to the corresponding contents in Embodiment 1.

[0066] Embodiment 3

[0067] In order to improve the stability of the transport vehicle body 3 walking in a straight line, the front running wheel set 4 does not have a swinging function. Since there are uneven ups and downs at the bottom of the carriage 9, the transport vehicle body 3 is easily affected by the ups and downs and tilted when it walks from front to back toward the platform 1. Even if the front part of the transport vehicle body 3 is swung to the rear by the swinging wheel set 5, the front part of the transport vehicle body 3 cannot be straightened. At this time, if the front part of the transport vehicle body 3 is forcibly straightened by the rolling abutment cooperation between the guide wheel set 6 and the guide member 11, it is easy to cause the guide wheel set 6 to be damaged or the running wheel set 4 to be damaged by friction with the top of the platform 1, which will cause the guide wheel set 6 to deviate or the running wheel set 4 to deviate, so that the transport vehicle body 3 cannot remain coaxial with the carriage 9 on the platform 1. Figure 10-13 The difference between this embodiment and the first embodiment, the second embodiment or the third embodiment is that:

[0068] In order to align the front end of the transport vehicle body 3 without causing damage to the guide wheel group 6 and the walking wheel group 4, the top of the platform 1 includes an adjustment area 14 located on the left and right sides and the front side of the positioning block 112, and a positioning area 15 located on the left and right sides of a plurality of the guide blocks 111. The adjustment area 14 is recessed with a plurality of mounting grooves for installing a universal adjustment device 16. The universal adjustment device 16 includes a limit seat 161 fixed in the mounting groove, a lifting seat 162 slidably sleeved in the limit seat 161, and a ball 163 rotatably embedded in the top of the lifting seat 162. The lifting seat 162 and the limiting seat 161 are connected by an elastic member 164, and the upper part of the ball 163 is exposed and protrudes from the upper side of the adjustment area 14; when the transport vehicle body 3 enters the platform 1 from front to back and the front part of the transport vehicle body 3 is skewed to a certain extent, the rolling contact and limiting between the front guide wheel group 61 and the guide member 11 make the walking wheel group 4 swing after being guided by the rolling of the ball 163 when walking through the ball 163, so as to swing and align the front end of the transport vehicle body 3, and the ball 163 is compressed and retracted, and is driven to reset by the elastic member 164 after the walking wheel group 4 passes. The front of the transport vehicle body 3 is thereby guided in a rolling manner by the arrangement of a plurality of universal adjustment devices 16, so that the walking wheel group 4 does not generate friction with the platform 1, but is swung in a manner that generates rolling friction with a plurality of ball bearings 163, thereby avoiding forced straightening of the front of the transport vehicle body 3 by the rolling abutment cooperation between the guide wheel group 6 and the guide member 11, which may cause damage to the guide wheel group 6 or damage to the walking wheel group 4 due to friction with the top of the platform 1, thereby causing the guide wheel group 6 to deviate or the walking wheel group 4 to walk in a biased direction, so that the transport vehicle body 3 cannot remain coaxial with the carriage 9 on the platform 1, thereby improving the stability of the transport vehicle body 3 when it is reversed from front to rear onto the platform 1 and cooperates with the guide member 11, ensuring that the cooperation between the guide wheel group 6 and the guide member 11 can be achieved stably and smoothly, ensuring that the transport vehicle body 3 remains coaxial with the carriage 9 on the platform 1 when loading next time, thereby improving the adaptability of the platform 1 to coaxially guide the transport vehicle body 3.

[0069] It should be pointed out that the implementation principle and technical effects of this embodiment are the same as those of Embodiment 1. For the sake of brief description, for matters not mentioned in this embodiment, reference may be made to the corresponding contents in Embodiment 1, Embodiment 2 or Embodiment 3.

[0070] Embodiment 4

[0071] In order to improve the stability of the transport vehicle body 3 walking in a straight line, the front running wheel set 4 does not have a swinging function. Since there are uneven ups and downs at the bottom of the carriage 9, the transport vehicle body 3 is easily affected by the ups and downs and tilted when it walks from front to back toward the platform 1. Even if the front part of the transport vehicle body 3 is swung to the rear by the swinging wheel set 5, the front part of the transport vehicle body 3 cannot be straightened. At this time, if the front part of the transport vehicle body 3 is forcibly straightened by the rolling abutment cooperation between the guide wheel set 6 and the guide member 11, it is easy to cause the guide wheel set 6 to be damaged or the running wheel set 4 to be damaged by friction with the top of the platform 1, which will cause the guide wheel set 6 to deviate or the running wheel set 4 to deviate, so that the transport vehicle body 3 cannot remain coaxial with the carriage 9 on the platform 1. Figure 14-16 The difference between this embodiment and the first embodiment, the second embodiment, the third embodiment or the fourth embodiment is that:

[0072] In order to align the front end of the transport vehicle body 3 without causing damage to the guide wheel group 6 and the walking wheel group 4, the top of the platform 1 is provided with two raised tracks 17 with a slope at the front end, which are located on the left and right sides of the guide member 11. The top of the positioning block 112 is inclined to form a guide surface 1121 that gradually increases in height from front to rear. The bottom of the transport vehicle body 3 is provided with a plurality of steering wheels 8 corresponding to each group of the guide wheel groups 6 for transverse rotation. Specifically, the front steering wheel 8 is located in front of the front guide wheel group 61, and the rear steering wheel 8 is located behind the rear guide wheel, so as to ensure that when the transport vehicle body 3 is reversed onto the platform 1, the front guide wheel group 61 first rolls against the positioning block 112 and then controls the steering of the front steering wheel 8, thereby improving the front The stability of the steering control of the front steering wheel 8 by the guide wheel group 61; thereby, by raising the guide rail and adding a plurality of steering wheels 8, when the transport vehicle body 3 enters the platform 1 from front to back and the front part of the transport vehicle body 3 is skewed to a certain extent, the two steering wheels 53 can be positioned to the left and right sides of the plurality of guide blocks 111 by the positioning blocks 112 and roll on the two raised rails 17 to raise the rear end of the transport vehicle body 3, and a plurality of guide wheel groups 6 are rolled against the left and right sides of the guide member 11, and a plurality of steering wheels 8 are guided by the left and right limit steering of the guide wheel group 6 and the guide surface 1121 to roll and be raised to the top of the plurality of guide blocks 111 to raise the front end of the transport vehicle body 3 and make the walking wheel group 4 suspended. The front end swing direction of the transport vehicle body 3 is controlled by the rolling contact limit between the front guide wheel group 61 and the positioning block 112, and the steering wheel 8 is turned to walk on the positioning block 112, and is not hindered by the suspended walking wheel group 4, thereby avoiding the front of the transport vehicle body 3 being forced to sway by the rolling contact cooperation between the guide wheel group 6 and the guide member 11, which may cause damage to the guide wheel group 6 or damage to the walking wheel group 4 and the top of the platform 1, causing the guide wheel group 6 to deviate or the walking wheel group 4 to walk in a biased direction, so that the transport vehicle body 3 cannot remain coaxial with the carriage 9 on the platform 1, thereby improving the stability of the transport vehicle body 3 reversing from front to back onto the platform 1 and cooperating with the guide member 11, ensuring that the cooperation between the guide wheel group 6 and the guide member 11 can be achieved stably and smoothly, ensuring that the transport vehicle body 3 remains coaxial with the carriage 9 on the platform 1 when loading next time, and improving the adaptability of the platform 1 to coaxially guide the transport vehicle body 3.

[0073] In order to improve the limiting strength of the guide wheel group 6, the far sides of the two lifting guide rails are folded upward to form a limiting portion corresponding to the interval of the guide member 11. When the transport vehicle body 3 walks on the platform 1, the guide wheel group 6 rolls and is against between the guide member 11 and the two limiting portions, and the two steering wheels 53 roll and walk on the lifting rail 17 and are limited between the guide member 11 and the two limiting portions.

[0074] When the traveling wheel set 4 is suspended in the air, the transport vehicle body 3 is supported only by the swing wheel set 5 and the steering wheels 8, which may lead to insufficient support force when loading. Therefore, in order to ensure the support stability of the transport vehicle body 3 while realizing the swing of the front end of the transport vehicle body 3, the top of the platform 1 includes an adjustment area 14 located on the left and right sides of a positioning block 112 and a positioning area 15 located on the left and right sides of the guide blocks 111. The positioning area 15 is provided with a support pad 18 corresponding to the traveling wheel set 4 and with a slope at the front end. The support heights of the lifting rail 17 and the support pad 18 are the same. Specifically, The support heights of the lifting rail 17 and the support pad 18 are both set to 1-3mm, preferably, the support height is 2mm, so that through the slight lifting height, under the premise of making the walking wheel set 4 suspended to swing the front end of the transport vehicle body 3, when the transport vehicle body 3 is accidentally tilted up and down on the left and right sides, the walking wheel set 4 will touch the ground for support, so as to avoid the transport vehicle body 3 from tilting and detaching from the guide member 11; after the transport vehicle body 3 is lifted as a whole, the walking wheel set 4 is suspended when entering the adjustment area 14, and rolls against the support pad 18 when entering the alignment area 15. Therefore, through the addition of the support pad 18, when the front end of the transport vehicle body 3 is aligned and enters the alignment area 15, the walking wheel set 4 can be supported by the support pad 18, so that the transport vehicle body 3 is supported by the swinging wheel set 5, the walking wheel set 4, and the steering wheel 8 as a whole, thereby improving the support stability of the transport vehicle body 3, and ensuring the support stability of the transport vehicle body 3 when loading goods under the premise of swinging the front end of the transport vehicle body 3.

[0075] It should be pointed out that the implementation principle and technical effects of this embodiment are the same as those of Embodiment 1, Embodiment 2, Embodiment 3 or Embodiment 4. For the sake of brief description, for matters not mentioned in this embodiment, reference may be made to the corresponding contents in Embodiment 1.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-precision loading system, characterized in that: include: The platform (1) has a top middle protrusion provided with a guide member (11) extending in the axial direction, and the left and right sides of the front end of the platform (1) are respectively provided with clamping members (12) driven by a clamping drive assembly (13) to move toward or in opposite directions; A support mechanism (2) is arranged at the bottom of the platform (1), the support mechanism (2) is used to drive the platform (1) to move to coaxially dock with the corresponding carriage (9), and the two clamping members (12) are used to move towards each other to clamp and fix the carriage (9) or move in the opposite direction to detach from the carriage (9); A transport vehicle body (3) is provided with a cargo-carrying mechanism on one side thereof, which is used for carrying cargo and is driven to move transversely by a transverse driving device (35). A traveling wheel group (4) and a swing wheel group (5) are arranged at the bottom of the transport vehicle body (3) and are arranged to rotate forward and backward by a traveling driving device (41). The swing wheel group (5) is driven to swing left and right by a rotating driving device (51). The distance between each group of the guide wheel groups (6) is set and the guide wheel groups (6) are rolled against the left and right sides of the guide member (11). Distance sensing devices are respectively arranged on the left and right sides of the transport vehicle body (3).

2. A high-precision loading system as claimed in claim 1, characterized in that: The number of the traveling wheel groups (4) is two and they are arranged on the left and right sides of the front of the transport vehicle body (3); the number of the swaying wheel groups (5) is one and they are arranged on the rear side of the middle of the axis of the transport vehicle body (3); the spacing between the swaying wheel groups (5) is set and they are distributed on the left and right sides of the guide member (11); the number of the guide wheel groups (6) is two and they are respectively a front guide wheel group (61) and a rear guide wheel group (62) distributed front and rear at the middle of the axis of the transport vehicle body (3); the front guide wheel group (61) is arranged on the rear side of the two traveling wheel groups (4), and the rear guide wheel group (62) is arranged on the rear side of the swaying wheel group (5).

3. A high-precision loading system as claimed in claim 1, characterized in that: The guide member (11) comprises a plurality of guide blocks (111) and a positioning block (112) which are sequentially abutted and distributed along the axial centerline of the platform (1) from the back to the front. The guide block (111) and the positioning block (112) are both screwed on the top of the platform (1). The left and right width of the positioning block (112) gradually decreases in a direction approaching the carriage (9).

4. A high-precision loading system as claimed in claim 2, characterized in that: The bottom of the transport vehicle body (3) is fixedly provided with two guide structures (7) symmetrically distributed front and back, each of the guide structures (7) comprises a guide seat (71), the guide seat (71) is provided with a guide rod (72) extending front and back, a guide block (73) slidably sleeved on the guide rod (72), a spring (74) with one end fixed and the other end connected to the guide block (73), a slide rod (75) extending left and right, two sliders slidably sleeved on the slide rod (75), one end of which is respectively hinged to the two sliders and the other end is hinged to the two sliders. One end of the two connecting rods (76) is hinged to the guide block (73), and a sliding hole extending left and right is penetrated at the bottom of the guide seat (71). The front guide wheel group (61) includes two sliding holes respectively sliding through the front guide seat (71) and connected to the rotating shaft of the slider, and two front guide wheels respectively rotatably sleeved on the lower end of the rotating shaft. The rear guide wheel group (62) includes two sliding holes respectively sliding through the rear guide seat (71) and connected to the rotating shaft of the slider, and two rear guide wheels respectively rotatably sleeved on the lower end of the rotating shaft.

5. A high-precision loading system as claimed in claim 1, characterized in that: The clamping drive assembly (13) is provided with two groups and is symmetrically arranged at the front end of the platform (1). One of the clamping drive assemblies (13) comprises a mounting seat (131) fixedly arranged on the side of the platform (1), a clamping cylinder (132) with one end hinged to the inner side of the mounting seat (131) and the other end movably passing through the mounting seat (131) and then hinged to the clamping member (12), a plurality of sliding sleeves (133) fixedly passing through the side wall of the mounting seat (131), a plurality of sleeve rods (134) with one end respectively connected to the clamping member (12) and the other end respectively slidingly passing through the sliding sleeves (133), and a plurality of limit rods (135) with one end respectively connected to the clamping member (12) and the other end respectively slidingly passing through the mounting seat (131) and then being provided to limit the position.

6. A high-precision loading system as claimed in claim 5, characterized in that: The two clamping members (12) each comprise a connecting portion (121) respectively connected to one end of a plurality of the sliding sleeves (133) and the other end of the clamping cylinder (132); the two connecting portions (121) extend forward to protrude from the platform (1) and are respectively fixed with a clamping block (122) on the opposite sides thereof; a plurality of sleeve rods (134), a plurality of limit rods (135), and a clamping cylinder (132) are arranged side by side in front and back and are respectively connected to the rear of the connecting portion (121); after the two clamping members (12) move toward each other, the two clamping blocks (122) are clamped and fixed to the left and right sides of the rear end of the carriage (9).

7. A high-precision loading system as claimed in claim 1, characterized in that: The support mechanism (2) is provided with two and is respectively arranged at the bottom of the front and rear ends of the platform (1), each of the support mechanisms (2) comprises a support seat (21) fixed to the ground, two telescopic pillars (22) distributed on the left and right, and a sliding seat (23) connected to the lower ends of the two telescopic pillars (22) and slidably arranged on the support seat (21) on the left and right, the support seat (21) is provided with a transverse cylinder (24) for driving the sliding seat (23) to move horizontally to the left and right, the top middle part of the support seat (21) is provided with a limit cover (25) arranged on the outside of the sliding seat (23), the side wall of the limit cover (25) is rolled through and provided with a plurality of limit rollers (26) whose inner sides roll and abut against the outer wall of the sliding seat (23), and the telescopic pillar (22) is driven by a lifting cylinder (27) to be lifted up and down.

8. A high-precision loading system as claimed in claim 3, characterized in that: The top of the platform (1) comprises an adjustment area (14) located on the left and right sides and the front side of a positioning block (112), and a positioning area (15) located on the left and right sides of a plurality of guide blocks (111). The adjustment area (14) is recessed with a plurality of mounting grooves for mounting a universal adjustment device (16). The universal adjustment device (16) comprises a limit seat (161) fixedly arranged in the mounting groove, and a lifting seat (162) slidably sleeved in the limit seat (161) up and down. ), a ball (163) rotatably embedded in the top of the lifting seat (162), the lifting seat (162) and the limit seat (161) are connected via an elastic member (164), the upper part of the ball (163) is exposed and protrudes from the upper side of the adjustment area (14); when the transport vehicle body (3) enters the platform (1) from front to back and the walking wheel group (4) walks past a plurality of ball (163), it is guided by the rolling of the plurality of ball (163) and swings backward.

9. A high-precision loading system as claimed in claim 3, characterized in that: The top of the platform (1) is provided with two raised tracks (17) located on the left and right sides of the guide member (11) and having a slope at the front end; the top of a positioning block (112) is inclined to form a guide surface (1121) whose height gradually increases from the front to the rear; the bottom of the transport vehicle (3) is provided with a plurality of steering wheels (8) corresponding to each group of the guide wheel groups (6) for transverse rotation; when the transport vehicle (3) enters the platform (1) from the front to the rear, the sway wheel group (5) is positioned to the left and right sides of the plurality of guide blocks (111) by the positioning block (112) and rolls on the two raised tracks (17); the plurality of guide wheel groups (6) are rollably arranged against the left and right sides of the guide member (11); the plurality of steering wheels (8) are rollably raised to the top of the plurality of guide blocks (111) by the left and right limited steering of the guide wheel group (6) and the guidance of the guide surface (1121); the transport vehicle (3) is lifted as a whole and the travel wheel group (4) is suspended.

10. A high-precision loading system as claimed in claim 9, characterized in that: The top of the platform (1) comprises an adjustment area (14) located on the left and right sides of a positioning block (112) and an alignment area (15) located on the left and right sides of a plurality of guide blocks (111); the alignment area (15) is provided with a support pad (18) corresponding to the walking wheel group (4) and having a slope at the front end; the support heights of the lifting rail (17) and the support pad (18) are the same; after the transport vehicle body (3) is lifted as a whole, the walking wheel group (4) is suspended when entering the adjustment area (14), and rolls against the support pad (18) when entering the alignment area (15).

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