A high-precision positioning device and method for interchangeable large containers

Abstract

The present invention relates to a high-precision positioning device and positioning method for large container interchange, comprising a frame, a floating lifting module is arranged at the bottom of the frame, a coarse positioning module is arranged around the inner side of the frame, and a fine positioning module is arranged at the top of the frame, and the floating lifting module, the coarse positioning module and the fine positioning module accurately position the container. The present invention can install corresponding positioning structures for containers in batches, thereby realizing arbitrary interchange between containers and host machines, and at the same time, a multi-level positioning module is arranged to ensure positioning accuracy, and can be adapted to equipment with high assembly accuracy requirements. When a container with the same positioning structure is replaced, it does not need to be positioned again, and can be directly assembled with the host machine, thereby shortening the replacement time, saving costs, and saving manpower.

Description

Technical Field

[0001] The invention relates to the technical field of positioning devices, and in particular to a high-precision positioning device and a positioning method for large container interchange. Background Art

[0002] Large-scale mixing equipment is widely used in the fields of chemical industry, pharmaceutical industry, food industry, plastic industry, etc. It has the functions of making materials mix evenly and increasing heat transfer. Large-scale mixing equipment consists of a mixing container and a mixing main machine. During assembly, the mixing container needs to be positioned with the mixing main machine to make the mixing equipment work better.

[0003] In the prior art, due to the high cost of finishing the positioning parts of large containers, the container and the host are usually positioned by matching during the assembly process of the equipment. The matching positioning method has the advantages of low cost and high positioning accuracy, but the matching positioning cycle is long, and the installed containers are not interchangeable. When replacing the container, professionals are required to go to the assembly site to re-position it. Matching positioning requires suspending production and takes a long time to install and debug, resulting in increased time and labor costs. Summary of the invention

[0004] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a high-precision positioning device and positioning method for large-scale container interchange, which can install corresponding positioning structures for containers in batches, thereby realizing the arbitrary interchange of containers and host machines. At the same time, a multi-level positioning module is set up to ensure positioning accuracy, and can be adapted to equipment with high assembly precision requirements. When a container with the same positioning structure is replaced, it does not need to be positioned again and can be directly assembled with the host machine, thereby shortening the replacement time, saving costs, and saving manpower.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A high-precision positioning device for large container interchange, comprising a frame, a floating lifting module is arranged at the bottom of the frame, a coarse positioning module is arranged around the inner side of the frame, and a fine positioning module is arranged at the top of the frame, and the floating lifting module, the coarse positioning module and the fine positioning module accurately position the container;

[0007] The structure of the frame is as follows: it includes a base, two ends of the base are fixed with columns, the tops of the two columns are fixed with beams parallel to the base, the middle of the beam is provided with a disk driver for driving the precision positioning module to rise or fall, and the outside of the base is fixed with a mounting frame through an extension frame;

[0008] The structure of the floating lifting module is as follows: it includes a support seat fixed to the base, a lifting power source is arranged inside the support seat, a guide rail is installed at the output end of the lifting power source, the lifting power source drives the guide rail to rise or fall, and guide components are arranged at both ends of the support seat;

[0009] The structure of the rough positioning module is as follows: it includes side bumpers symmetrically arranged on the sides of two columns with the center of the upper end surface of the container as the center, and a rear bumper arranged outside the frame, and the rear bumper is evenly arranged along one-half of the circumference of the upper end surface of the container through a mounting frame and the two side bumpers;

[0010] The structure of the precision positioning module is as follows: it includes a disk body connected to a crossbeam, the disk body is in the shape of a disk, a plurality of secondary precision positioning drivers are evenly arranged along the circumference inside the disk body, and secondary precision positioning blocks are evenly arranged outside the disk body, and the secondary precision positioning driver drives the secondary precision positioning blocks to be ejected or retracted.

[0011] As a further improvement of the above technical solution:

[0012] A positioning structure is also provided at the bottom of the frame. The positioning structure comprises a tooling positioning piece fixed to the base. The tooling positioning piece is matched with a container positioning piece, and the container positioning piece is fixedly installed at the bottom of the container.

[0013] The sides of the two upright posts are also provided with support ear locking blocks, and the support ear locking blocks are located below the side impact blocks.

[0014] The outer side surface of the disk body is also provided with a plurality of first-level precision positioning blocks, and the first-level precision positioning blocks are evenly arranged along the outer side surface of the disk body and spaced apart from the second-level precision positioning blocks.

[0015] The structure of the secondary precision positioning driver is as follows: it comprises a cylinder fixed inside the disc body, and the output end of the cylinder is fixed to the secondary precision positioning block through a short shaft.

[0016] The lifting power source is an air bag.

[0017] The structure of the lifting power source is as follows: it comprises a cylinder fixed to a base, a bearing is fixedly mounted on an output end of the cylinder, and the bearing is fixed to the bottom of the guide rail through a ring sleeve.

[0018] The structure of the disk driver is as follows: it includes a cylinder fixed to the crossbeam, the output end of the cylinder is connected to the connecting frame through a connecting shaft, the connecting frame is fixed to the upper flange, and the bottom surface of the upper flange is fixedly installed with a precise positioning module.

[0019] A positioning method using the above-mentioned high-precision positioning device for large container interchange comprises the following steps:

[0020] S1. Preparation: adjust the floating lifting module and the precision positioning module to the highest position and confirm that the positioning structure is installed properly;

[0021] S2. Coarse positioning: place the container on the floating lifting module and ensure that the container is located between the two side bumpers, push the container to ensure that the container contacts the rear bumper;

[0022] S3. Start the lifting power source to slowly lower the guide rail to the lowest position so that the bottom surface of the container contacts the container positioning member;

[0023] S4. Start the disk drive to slowly lower the precision positioning module until the precision positioning module enters the container, and then stop the disk drive;

[0024] S5. Use shims to level the container;

[0025] S6. Fine positioning: the fine positioning module continues to slowly descend until all the secondary fine positioning blocks enter the container, the secondary fine positioning drive is started, and the secondary fine positioning block is slowly ejected to the farthest stroke;

[0026] S7. Retract the secondary precision positioning block, and slowly push out the secondary precision positioning block again to the farthest stroke until the position of the container does not change, thus completing the precision positioning;

[0027] S8. The container positioning member is fixedly mounted to the bottom of the container;

[0028] S9. Start the secondary precision positioning driver to fully retract the secondary precision positioning block, start the disk driver to slowly raise the precision positioning module to the highest position, start the lifting power source to slowly raise the guide rail to the highest position, and move the container from the floating lifting module to place it on the ground.

[0029] As a further improvement of the above technical solution:

[0030] The following steps are also included between step S7 and step S8:

[0031] S7.1. Confirm whether the container positioning parts and the tooling positioning parts are in good coordination;

[0032] S7.2. If the container positioning member and the tooling positioning member are well matched, proceed to step S8;

[0033] S7.3. If there is an error in the fit between the container locator and the tooling locator, the container locator needs to be adjusted to properly fit with the tooling locator.

[0034] The beneficial effects of the present invention are as follows:

[0035] The present invention has a compact and reasonable structure and is easy to operate. With the inner wall of the container as a reference, the inner diameter center of the container is adjusted to coincide with the center of the positioning device through a multi-level positioning module, and the assembly center of the container is positioned using a positioning structure, so that the container has interchangeability and does not require professional personnel to perform positioning. It can be directly assembled with the main machine, thereby achieving rapid positioning and assembly of the container and the main machine, shortening the replacement time, and saving time and labor costs.

[0036] The present invention also includes the following advantages:

[0037] (1) By setting up the precise positioning module, the positioning accuracy can be controlled within 2 mm. The positioning accuracy is high and is suitable for high-precision usage scenarios.

[0038] (2) By setting a first-level precision positioning block to perform first-level precision positioning on the container, the second-level precision positioning block can be fully in contact with the inner wall of the container when ejected, while reducing the wear of the second-level precision positioning block and extending the service life.

[0039] (3) The present invention can replace different positioning structures to adapt to different stirring equipment.

[0040] (4) By setting up a floating lifting module, the container can have a certain degree of freedom outside the lifting direction.

[0041] (5) During the positioning process, personnel only need to operate the regulating valve to control the movement of each module for positioning. The operation is simple and convenient for personnel training and implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a structural diagram of embodiment 1 of the present invention.

[0043] Figure 2 for Figure 1 main view.

[0044] Figure 3 for Figure 1 Side view of.

[0045] Figure 4 for Figure 1 Rear view of.

[0046] Figure 5 It is a structural schematic diagram of the floating lifting module in the first embodiment.

[0047] Figure 6 for Figure 5 main view.

[0048] Figure 7 for Figure 5 Side view of.

[0049] Figure 8It is a schematic diagram of the structure of the guide rail in the first embodiment.

[0050] Fig. 9 It is a schematic diagram of the structure of the guide component in the first embodiment.

[0051] Fig.10 It is a structural diagram of the precise positioning module in the first embodiment.

[0052] Fig.11 It is a schematic diagram of the first embodiment in working state.

[0053] Fig.12 for Fig.11 main view.

[0054] Fig.13 It is a structural schematic diagram of the floating lifting module in the second embodiment of the present invention.

[0055] Fig.14 for Fig.13 Side view of.

[0056] Fig.15 This is a front view of the second embodiment of the present invention in working state.

[0057] Among them: 1. Rack; 2. Floating lifting module; 3. Coarse positioning module; 4. Fine positioning module; 5. Positioning structure; 6. Container;

[0058] 101, base; 102, column; 103, beam; 104, ear locking block; 105, disk driver; 106, connecting frame; 107, upper flange; 108, connecting shaft;

[0059] 201, lifting power source; 202, support seat; 203, guide rail; 204, guide component;

[0060] 301, side bumper; 302, rear bumper; 303, mounting bracket;

[0061] 401, disk body; 402, secondary precision positioning driver; 403, primary precision positioning block; 404, secondary precision positioning block; 405, lower flange; 406, partition; 407, center axis;

[0062] 501. Tool positioning piece; 502. Container positioning piece. DETAILED DESCRIPTION

[0063] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0064] Embodiment 1:

[0065] The structure and functions of this embodiment are as follows:

[0066] like Figure 1-Figure 12 As shown, a high-precision positioning device for large container interchange includes a frame 1, a floating lifting module 2 is arranged at the bottom of the frame 1, a coarse positioning module 3 is arranged around the inner side of the frame 1, and a fine positioning module 4 is arranged on the top of the frame 1. The floating lifting module 2, the coarse positioning module 3 and the fine positioning module 4 accurately position the container 6.

[0067] The structure of the frame 1 is as follows: it includes a base 101, with columns 102 fixed at both ends of the base 101, and a beam 103 parallel to the base 101 is fixed on the top of the two columns 102. A disk driver 105 for driving the precision positioning module 4 to rise or fall is arranged in the middle of the beam 103, and the outside of the base 101 is fixed with a mounting frame 303 through an extension frame.

[0068] The structure of the floating lifting module 2 is as follows: it includes a support seat 202 fixed to the base 101, a lifting power source 201 is arranged inside the support seat 202, a guide rail 203 is installed at the output end of the lifting power source 201, the lifting power source 201 drives the guide rail 203 to rise or fall, and guide components 204 are arranged at both ends of the support seat 202. The guide rail 203 is installed in coordination with the guide component 204, and four rollers are installed at the bottom of the container 6. The guide rail 203 can facilitate the movement of the container 6 to complete the rough positioning. The guide rail 203 is installed above the airbag. When the airbag is inflated, the guide rail 203 rises, and when the airbag is deflated, the guide rail 203 falls. The four corners of the guide rail 203 are provided with grooves, the guide component 204 is concave, and a sunken space is arranged in the middle of the guide component 204. A stopper is arranged at the top of the guide component 204, and the stopper is fixed with a threaded fastener. When the guide rail 203 is matched with the guide component 204, the threaded fasteners are unscrewed, the stopper is loosened, and the two ends of the guide rail 203 are placed in the sunken space in the middle of the guide component 204. The grooves at the four corners of the guide rail 203 are inserted into the guide component 204, and then the stopper is fixed with the threaded fasteners. The guide component 204 is used for guiding during the lifting process of the container 6, and can prevent the guide rail 203 from being stuck due to excessive tilting.

[0069] The structure of the rough positioning module 3 is as follows: it includes side bumpers 301 symmetrically arranged on the sides of the two columns 102 with the center of the upper end surface of the container 6 as the center, and a rear bumper 302 arranged outside the frame 1, and the rear bumper 302 is evenly arranged along the half circumference of the upper end surface of the container 6 with the two side bumpers 301 through the mounting frame 303. The height of the rear bumper 302 is adjusted through the mounting frame 303, so that the horizontal center line of the rear bumper 302 and the side bumper 301 are at the same height, and the rough positioning module 3 allows the container 6 to enter the position range required by the fine positioning module 4.

[0070] The structure of the precision positioning module 4 is as follows: it includes a disk body 401 connected to the crossbeam 103, the disk body 401 is in the shape of a disk, and several secondary precision positioning drivers 402 are evenly arranged along the circumference of the disk body 401. Secondary precision positioning blocks 404 are evenly arranged on the outside of the disk body 401, and the secondary precision positioning drivers 402 drive the secondary precision positioning blocks 404 to push out or retract. A central shaft 407 is arranged in the middle of the disk body 401, and a circular groove is opened inside the central shaft 407 to reduce the weight. A partition 406 is sleeved on the outside of the central shaft 407, and the partition 406 is radial, and the partition 406 separates the secondary precision positioning drivers 402. A lower flange 405 is arranged at the bottom of the disk body 401, and the lower flange 405 is used for fixed installation with the upper flange 107.

[0071] The bottom of the frame 1 is also provided with a positioning structure 5, and the structure of the positioning structure 5 is as follows: it includes a tooling positioning piece 501 fixed to the base 101, and the tooling positioning piece 501 is provided with a container positioning piece 502 in cooperation with the tooling positioning piece 501, and the container positioning piece 502 is fixedly installed at the bottom of the container 6. In this embodiment, a V-shaped block is used as the positioning structure 5, and the V-shaped block is divided into a container V-shaped block and a tooling V-shaped block. The tooling V-shaped block is fixed on the base (101), and the container V-shaped block cooperates with the tooling V-shaped block. After the positioning is completed using the positioning device, the container V-shaped block needs to be fixedly installed to the bottom of the container 6.

[0072] The sides of the two uprights 102 are also provided with ear locking blocks 104, which are located below the side bumper 301. The ear locking blocks 104 fix the ears to be close to the outer wall of the container 6. The ears are used to cooperate with the positioning structure 5 to position the container 6. The positions of the corresponding V-shaped blocks and ears on the container 6 can be determined according to the V-shaped blocks on the positioning device and the ear locking blocks 104. After the positions of the ears are determined, they need to be fixed on the outer wall of the container.

[0073] Several first-level precision positioning blocks 403 are also provided on the outer side of the plate body 401, and the first-level precision positioning blocks 403 are evenly spaced along the outer side of the plate body 401 and the second-level precision positioning blocks 404. The thickness of the first-level precision positioning blocks 403 is greater than that of the second-level precision positioning blocks 404. During the descending process of the plate body 401, the first-level precision positioning blocks 403 contact the inner wall of the container 6 to perform a precision positioning on the container 6, while protecting the second-level precision positioning blocks 404 from being worn by the inner wall of the container 6, thereby ensuring the positioning accuracy.

[0074] The structure of the secondary precision positioning driver 402 is as follows: it includes a cylinder fixed inside the disk body 401, and the output end of the cylinder is fixed to the secondary precision positioning block 404 through a short shaft.

[0075] The lifting power source 201 is an air bag. The use of the air bag can allow the container 6 to retain a certain degree of freedom outside the lifting direction.

[0076] The structure of the disk driver 105 is as follows: it includes a cylinder fixed to the crossbeam 103, the output end of the cylinder is connected to the connecting frame 106 through a connecting shaft 108, the connecting frame 106 is fixed to the upper flange 107, and the bottom surface of the upper flange 107 is fixedly installed with the precise positioning module 4. The disk driver 105 adopts a pneumatic method, the upper flange 107 is fixedly installed with the lower flange 405 of the precise positioning module 4, a through hole is provided in the middle of the crossbeam 103, and the connecting shaft 108 passes through the through hole to connect the cylinder and the upper flange 107, so that the precise positioning module 4 can be lifted and lowered along with the output end of the cylinder.

[0077] The disk driver 105, the lifting power source 201, and the secondary precision positioning driver 402 all use an external air source, and are each provided with an air pressure regulating valve for motion control.

[0078] With the inner wall of the container 6 as a reference, the inner diameter center of the container 6 is adjusted to coincide with the center of the positioning device through the precision positioning module 4, and then the installation position of the container positioning member 502 on the container 6 is determined according to the tooling positioning member 501 on the positioning device, and finally the container positioning member 502 is fixedly installed on the container 6. The containers 6 using the same positioning device are all installed with the same positioning structure 5, thereby realizing arbitrary interchange between containers 6.

[0079] Embodiment 2:

[0080] like Figure 13-Figure 15 As shown, the difference between this embodiment and the first embodiment is that the structure of the lifting power source 201 is: it includes a cylinder fixed to the base 101, the output end of the cylinder is fixedly installed with a bearing, and the bearing is fixed to the bottom of the guide rail 203 through a ring sleeve; the positioning structure 5 uses a collision block for positioning.

[0081] The bearing uses a bull's eye bearing, which can allow the container 6 to retain a certain degree of freedom outside the lifting direction. The bottom of the bearing seat is fixed to the cylinder output end using a threaded fastener, and the top of the bearing seat is fixed to the guide rail 203 using a ring sleeve.

[0082] The cylinder is connected to an air source and is provided with a regulating valve, and the cylinder can be activated by the regulating valve to make the guide rail 203 rise or fall.

[0083] When the positioning structure 5 uses a collision block, both the container collision block and the tool collision block are provided with through holes, and the end surface of the tool collision block in contact with the container 6 is provided with a groove, so that the tool collision block and the container 6 can be better fitted. When in use, the pin is inserted into the through holes of the container collision block and the tool collision block to fix the position of the collision block, and after the positioning is completed using the positioning device, the container collision block is welded to the container 6.

[0084] Embodiment three:

[0085] Taking the high-precision positioning device for large container interchange provided in Example 1 as an example, this embodiment provides a positioning method for a high-precision positioning device for large container interchange:

[0086] In this embodiment, the motion control of the disk driver 105, the lifting power source 201, and the secondary precision positioning driver 402 are all controlled by corresponding air pressure regulating valves.

[0087] The following steps are involved:

[0088] S1. Preparation work: adjust the floating lifting module 2 and the precision positioning module 4 to the highest position, and confirm that the positioning structure 5 is installed;

[0089] S1.1. Example 1 uses a V-shaped block as a positioning structure 5, that is, the tooling positioning member 501 is a tooling V-shaped block, the container positioning member 502 is a container V-shaped block, the tooling V-shaped block is fixed to the base 101, the container V-shaped block is placed on the tooling V-shaped block, and the front and rear edges are aligned;

[0090] S2. Coarse positioning, placing the container 6 on the floating lifting module 2, and ensuring that the container 6 is located between the two side bumpers 301, pushing the container 6, ensuring that the container 6 contacts the rear bumper 302;

[0091] S3. Start the lifting power source 201, so that the guide rail 203 slowly descends to the lowest position, so that the bottom surface of the container 6 contacts the container positioning member 502;

[0092] S4. Start the disk drive 105 to slowly lower the precision positioning module 4 until the precision positioning module 4 enters the container 6, and then stop the disk drive 105;

[0093] S4.1. During the descent of the precision positioning module 4, the first-level precision positioning block 403 contacts the inner wall of the container 6, and the container 6 is precisely positioned;

[0094] S4.2. Measure the gap between the lower bottom surface of the lower flange 405 and the upper bottom surface of the container 6, and adjust the gap to a suitable position through the disk driver 105;

[0095] S5. Use gaskets to level the container 6;

[0096] S5.1. Add a gasket between the bottom of the container 6 and the V-shaped block of the container, and level the container 6 until the front and rear differences and the left and right differences are controlled within 0.5 mm;

[0097] S6. Fine positioning, the fine positioning module 4 continues to slowly descend until the secondary fine positioning block 404 is completely in the container 6, the secondary fine positioning driver 402 is started, and the secondary fine positioning block 404 is slowly ejected to the farthest stroke,

[0098] S7. Retract the secondary precision positioning block 404, and slowly push out the secondary precision positioning block 404 to the farthest stroke again until the position of the container 6 does not change, and the precision positioning is completed;

[0099] S7.1. Confirm whether the container positioning member 502 and the tooling positioning member 501 are in good cooperation. In Example 1, a V-shaped positioning block is used. It is necessary to confirm whether the end surface of the container V-shaped block and the tooling V-shaped block is aligned;

[0100] S7.2. If the container positioning member 502 and the tooling positioning member 501 cooperate well, proceed to step S8;

[0101] S7.3. If there is an error in the cooperation between the container positioning member 502 and the tooling positioning member 501, it is necessary to adjust the container positioning member 502 to properly cooperate with the tooling positioning member 501, that is, if the end faces of the V-shaped positioning block are not aligned, it is necessary to adjust the end faces of the container V-shaped block and the tooling V-shaped block to align;

[0102] S8. The container positioning member 502 is fixedly mounted to the bottom of the container 6;

[0103] S8.1. Use the ear locking block 104 to lock the fixed ear, and confirm that the ear plate is close to the outer wall of the container 6 before locking;

[0104] S8.2. The lug is fixedly mounted on the outer wall of the container 6;

[0105] S9. Start the secondary fine positioning driver 402 to fully retract the secondary fine positioning block 404, start the disk driver 105 to slowly raise the fine positioning module 4 to the highest position, start the lifting power source 201 to slowly raise the guide rail 203 to the highest position, and move the container 6 from the floating lifting module 2 to place it on the ground.

[0106] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any form of modification may be made within the scope of protection of the present invention.

Claims

1. A high-precision positioning device for large container interchange, characterized in that: The machine comprises a frame (1), wherein a floating lifting module (2) is arranged at the bottom of the frame (1), a coarse positioning module (3) is arranged around the inner side of the frame (1), and a fine positioning module (4) is arranged at the top of the frame (1), wherein the floating lifting module (2), the coarse positioning module (3) and the fine positioning module (4) accurately position a container (6); The structure of the frame (1) is as follows: it comprises a base (101), two ends of the base (101) are fixed with upright posts (102), the tops of the two upright posts (102) are simultaneously fixed with crossbeams (103) parallel to the base (101), the middle of the crossbeam (103) is provided with a disk driver (105) for driving the precise positioning module (4) to rise or fall, and the outside of the base (101) is fixed with a mounting frame (303) via an extension frame; The structure of the floating lifting module (2) is as follows: it comprises a support seat (202) fixed to the base (101); a lifting power source (201) is arranged inside the support seat (202); a guide rail (203) is installed at the output end of the lifting power source (201); the lifting power source (201) drives the guide rail (203) to rise or fall; and guide components (204) are arranged at both ends of the support seat (202); The structure of the coarse positioning module (3) is as follows: it comprises side bumpers (301) symmetrically arranged on the sides of two uprights (102) with the center of the upper end surface of the container (6) as the center, and a rear bumper (302) arranged outside the frame (1), wherein the rear bumper (302) is evenly arranged along half of the circumference of the upper end surface of the container (6) with the side bumpers (301) via a mounting frame (303); The structure of the precision positioning module (4) is as follows: it comprises a disk body (401) connected to the crossbeam (103); the disk body (401) is in the shape of a disk; a plurality of secondary precision positioning drivers (402) are evenly arranged along the circumference of the disk body (401); secondary precision positioning blocks (404) are evenly arranged on the outside of the disk body (401); and the secondary precision positioning drivers (402) drive the secondary precision positioning blocks (404) to be ejected or retracted.

2. A high-precision positioning device for large container interchange as claimed in claim 1, characterized in that: The bottom of the frame (1) is also provided with a positioning structure (5), and the structure of the positioning structure (5) is as follows: it includes a tool positioning piece (501) fixed to the base (101), and the tool positioning piece (501) is provided in cooperation with a container positioning piece (502), and the container positioning piece (502) is fixedly installed on the bottom of the container (6).

3. A high-precision positioning device for large container interchange as claimed in claim 1, characterized in that: The sides of the two upright posts (102) are also provided with support ear locking blocks (104), and the support ear locking blocks (104) are located below the side impact blocks (301).

4. A high-precision positioning device for large container interchange as claimed in claim 1, characterized in that: The outer side surface of the disk body (401) is also provided with a plurality of primary precision positioning blocks (403), and the primary precision positioning blocks (403) are evenly spaced apart from the secondary precision positioning blocks (404) along the outer side surface of the disk body (401).

5. A high-precision positioning device for large container interchange as claimed in claim 1, characterized in that: The structure of the secondary precision positioning driver (402) is as follows: it comprises a cylinder fixed inside the disk body (401), and the output end of the cylinder is fixed to the secondary precision positioning block (404) via a short shaft.

6. A high-precision positioning device for large container interchange as claimed in claim 1, characterized in that: The lifting power source (201) is an air bag.

7. A high-precision positioning device for large container interchange as claimed in claim 1, characterized in that: The structure of the lifting power source (201) is as follows: it comprises a cylinder fixed to the base (101), a bearing is fixedly mounted on the output end of the cylinder, and the bearing is fixed to the bottom of the guide rail (203) through a ring sleeve.

8. A high-precision positioning device for large container interchange as claimed in claim 1, characterized in that: The structure of the disk driver (105) is as follows: it includes a cylinder fixed to the crossbeam (103), the output end of the cylinder is connected to the connecting frame (106) through a connecting shaft (108), the connecting frame (106) is fixed to the upper flange (107), and the bottom surface of the upper flange (107) is fixedly mounted with a precise positioning module (4).

9. A positioning method using the high-precision positioning device for large container interchange according to claim 1, characterized in that: The following steps are involved: S1. Preparation: adjust the floating lifting module (2) and the precision positioning module (4) to the highest position, and confirm that the positioning structure (5) is installed; The positioning structure (5) is arranged at the bottom of the frame (1), and the structure of the positioning structure (5) is as follows: it comprises a tool positioning member (501) fixed to the base (101), the tool positioning member (501) is provided with a container positioning member (502) in cooperation with the tool positioning member (501), and the container positioning member (502) is fixedly installed at the bottom of the container (6); S2. Coarse positioning, placing the container (6) on the floating lifting module (2), and ensuring that the container (6) is located between the two side bumpers (301), pushing the container (6), ensuring that the container (6) is in contact with the rear bumper (302); S3. Start the lifting power source (201) to slowly lower the guide rail (203) to the lowest position, so that the bottom surface of the container (6) contacts the container positioning member (502); S4. Start the disk drive (105) to slowly lower the precision positioning module (4) until the precision positioning module (4) enters the container (6), and then stop the disk drive (105); S5. Use a gasket to level the container (6); S6. Precision positioning, the precision positioning module (4) continues to slowly descend until the secondary precision positioning block (404) is completely inside the container (6), the secondary precision positioning driver (402) is started, and the secondary precision positioning block (404) is slowly ejected to the farthest stroke; S7. Retract the secondary precision positioning block (404), and slowly push out the secondary precision positioning block (404) again to the farthest stroke until the position of the container (6) does not change, thus completing the precision positioning; S8. The container positioning member (502) is fixedly mounted to the bottom of the container (6); S9. Start the secondary precision positioning driver (402) to fully retract the secondary precision positioning block (404), start the disk driver (105) to slowly raise the precision positioning module (4) to the highest position, start the lifting power source (201) to slowly raise the guide rail (203) to the highest position, and move the container (6) from the floating lifting module (2) to place it on the ground.

10. A high-precision positioning method for large container interchange as claimed in claim 9, characterized in that: The following steps are also included between step S7 and step S8: S7.

1. Confirm whether the container positioning member (502) and the tooling positioning member (501) are well matched; S7.

2. If the container positioning member (502) and the tooling positioning member (501) are well matched, proceed to step S8; S7.

3. If there is an error in the fit between the container positioning member (502) and the tool positioning member (501), it is necessary to adjust the container positioning member (502) until it correctly fits with the tool positioning member (501).

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