Tray type AGV material trolley based on aluminum profile hot extrusion die machining and transferring and control method

Abstract

The invention relates to the related technical field of a tray type AGV material trolley based on aluminum profile hot extrusion die machining and transferring and a control method, in particular to the tray type AGV material trolley based on aluminum profile hot extrusion die machining and transferring and the control method. The jacking platform is synchronously lifted, the built-in external expansion positioning mechanism expands outwards and accurately abuts against a protruding block preset at the bottom of the tray, the center position of the tray can be automatically corrected in the self-adaptive adjusting process, and the eccentric problem caused by initial alignment deviation or workpiece unbalance loading is solved from the source; then, a built-in insertion rod is precisely embedded into the bottom of the tray and is rotationally locked, firm mechanical interlocking is formed, and the tray is rigidly fixed to the jacking platform; through the synergistic effect, the problem that the center of the tray deviates due to single-side unbalance loading of the workpiece can be thoroughly avoided, and the risk that the tray inclines and topples over in the transferring process can be eradicated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of AGV material trolley, and particularly relates to a tray type AGV material trolley based on aluminum profile hot extrusion die machining and transfer and a control method. BACKGROUND

[0002] The aluminum profile hot extrusion die is a key precision tool for obtaining aluminum profile of a required cross-sectional shape by forcing a heated and softened aluminum bar to pass through a specific-shaped hole cavity on the die under high temperature and high pressure. After the aluminum profile hot extrusion die is precisely machined, the aluminum profile hot extrusion die is stably placed on a special tray. Then, a latent AGV trolley moves to the bottom of the tray in a unique latent manner, silently lifts the tray away from the ground by using an automatic lifting mechanism, and then efficiently and automatically transfers the tray to a designated work station or storage area. The AGV trolley autonomously drives to the bottom of the target tray along a predetermined path by using laser or visual navigation technology, and then lifts the tray by using the "latent" lifting platform, so as to realize non-contact and flexible handling of the entire load unit, and greatly improve the level of logistics automation.

[0003] However, the current AGV has defects when transferring the tray with workpieces. Firstly, there is no effective active centering mechanism. After the trolley penetrates into the bottom of the tray, there is an inherent deviation in the relative position, and the eccentric load formed by uneven placement of the workpieces on the tray will directly cause the center of gravity of the tray to deviate from the center of the lifting mechanism, which will cause the subsequent transfer to be overturned. Secondly, the traditional lifting or forked fixed mode is only a simple vertical support, and there is no horizontal mechanical locking between the tray and the AGV platform. When the AGV starts and stops or turns, the tray and the AGV platform are easy to slip or even dislocate, and the stability and safety of the entire handling system are seriously dependent on the absolute balance of the load, and cannot adapt to complex real industrial scenes. SUMMARY

[0004] The present application aims to provide a tray type AGV material trolley based on aluminum profile hot extrusion die machining and transfer and a control method to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: A pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer includes a submerged lifting AGV trolley and a lifting support platform set on top of the submerged lifting AGV trolley. A workpiece transport pallet and multiple positioning protrusions are arranged on the top of the submerged lifting AGV trolley. The lifting support platform has grooves and a housing fixed to the grooves. Outwardly expanding abutting mechanisms are slidably installed on both sides of the housing, and these mechanisms abut against the positioning protrusions. A fixed base and a lateral extrusion assembly are fixedly connected to the bottom of the housing, and the lateral extrusion assembly and the outwardly expanding abutting mechanism are extruded together. A lifting mechanism and an insertion mechanism fixedly connected to the lifting mechanism are arranged inside the fixed base, and the insertion mechanism cooperates with a locking mechanism fixed to the bottom of the workpiece pallet.

[0006] As described above, the pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer: the outward expansion abutment mechanism includes two transverse plates that are slidably installed on both sides of the housing and an angled member set on one side of the transverse plates, and a guide post is provided on the inner side of the transverse plate.

[0007] As described above, the pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer: a spring is sleeved on the guide post on the inner side of the transverse plate, the spring abuts against the outer wall of the shell, and arc-shaped outward expansion arms are fixedly connected to both ends of the transverse plate, the arc-shaped outward expansion arms abut against the positioning protrusions at the bottom of the carrying pallet.

[0008] As described above, the pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer: the lateral extrusion assembly includes a groove opened on both sides of the fixed seat and a support column slidably installed on the groove. The top of the support column is fixedly connected to a beveled extrusion plate, and the two beveled extrusion plates are respectively extruded into the beveled parts on one side of the two transverse plates.

[0009] As described above, the pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer: the lifting mechanism includes a lifting cylinder fixedly connected inside the fixed base and a push rod disposed on the lifting cylinder, and a cylinder is rotatably connected to the push rod.

[0010] As described above, the pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer: the cylinder is slidably installed on the inner wall of the fixed base, and two limiting rings are fixedly connected to the middle section of the cylinder.

[0011] As described above, the pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer: both of the two limiting rings are provided with guide grooves, and one end of each of the two inclined extrusion plates is slidably mounted on the guide grooves.

[0012] As described above, the pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer: the inner wall of the fixed seat is provided with a stroke groove, which is composed of a straight groove and an inclined groove, and a ball is embedded in one end of the bottom of the cylinder, and the ball is slidably installed on the stroke groove.

[0013] As described above, the pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer: the top of the cylinder is fixedly connected to an insert rod and a protruding rod fixed to one end of the insert rod, the bottom of the carrying pallet is fixedly connected to a fixing ring and a special-shaped groove opened along the outer periphery of the fixing ring, the special-shaped groove is composed of a straight groove and an inclined groove, the special-shaped groove cooperates with the guide groove, and the protruding rod slides with the special-shaped groove.

[0014] The control method for pallet-type AGV material carts based on aluminum profile hot extrusion die processing and transfer, as described above, includes the following steps: Step 1: After the AGV trolley with its submerged lifting mechanism submerges into the bottom of the cargo pallet, the lifting support platform lifts the cargo pallet. At this time, the lifting cylinder is activated to drive the push rod and cylinder to lift. During the process, the ball bearings of the cylinder will lift in a straight line in the straight section of the stroke groove, and the cylinder will drive the two inclined extrusion plates to move. Then, the two inclined extrusion plates will respectively fit against the inclined edges of the inclined corner pieces at the bottom of the transverse plate and squeeze them to the sides, compressing the springs during the process. Step 2: Then, the two transverse plates extend outwards, so that the arc-shaped outward expansion arm abuts against the positioning protrusion on the bottom of the cargo tray. This process can automatically correct the center position of the cargo tray. Step 3: Continue to move the cylinder upwards, so that the top insert rod moves into the fixed ring at the bottom of the tray. At this time, the position of the ball bearings on the cylinder is in the inclined section of the stroke groove. During the process, the cylinder and the ball bearings move in the direction of the inclined section of the stroke groove. Step 4: As the cylinder rises, it deflects along the inclined section of the travel groove. At the same time, the top insert rod also deflects, causing the protruding rod at one end to engage in the inclined section of the irregular groove, rotating and locking to form a solid mechanical interlock, rigidly fixing the cargo tray to the lifting platform.

[0015] Compared with the prior art, the beneficial effects of the present invention are: When the AGV trolley enters and lifts the pallet, the lifting platform rises simultaneously. The built-in outward expansion positioning mechanism expands outward and precisely abuts against the pre-set protrusions on the bottom of the pallet. This adaptive adjustment process can automatically correct the center position of the pallet, overcoming the eccentricity problem caused by initial alignment deviation or workpiece off-center loading from the source. Subsequently, the built-in insert rod is precisely embedded into the bottom of the pallet and rotated to lock, forming a solid mechanical interlock, rigidly fixing the pallet on the lifting platform. This synergistic effect can not only completely avoid the problem of pallet center offset caused by workpiece unilateral off-center loading, but also eliminate the risk of pallet tilting or tipping during transportation.

[0016] This invention effectively eliminates the risk of pallet tipping caused by unstable center of gravity during transportation through a dual protection mechanism of centering first and locking later, achieving high-precision and high-reliability automated transportation of high-value, asymmetrical load materials. Attached Figure Description

[0017] Figure 1 This is a top view of the lurking lifting AGV trolley, which is a pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer.

[0018] Figure 2 This is a side view schematic diagram of the submerged lifting AGV trolley in a pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer.

[0019] Figure 3 This is a bottom view of the structure of a pallet-type AGV material trolley that is used for material transfer based on aluminum profile hot extrusion die processing.

[0020] Figure 4 This is a top view of the lurking lifting AGV trolley and the cargo pallet in a pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer.

[0021] Figure 5 This is a side view of the lurking lifting AGV trolley and the cargo pallet in a pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer.

[0022] Figure 6 This is a schematic diagram of the lifting support platform structure in a pallet-type AGV material trolley that is processed and transported based on aluminum profile hot extrusion die.

[0023] Figure 7 This is a schematic diagram of the pallet and shell structure in a pallet-type AGV material trolley that is processed and transported based on aluminum profile hot extrusion die.

[0024] Figure 8 This is a schematic diagram of the cross-sectional structure of the shell and the carrying pallet in a pallet-type AGV material trolley that is processed and transported based on aluminum profile hot extrusion die.

[0025] Figure 9 This is a schematic diagram of the shell, outward abutment mechanism, insertion mechanism, and locking mechanism of a pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer.

[0026] Figure 10 This is a schematic diagram of the shell, outward abutment mechanism, and insertion mechanism of a pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer.

[0027] Figure 11 This is a schematic diagram of the lateral extrusion assembly, outward expansion contact mechanism, insertion mechanism, and shell cross-section structure of a pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer.

[0028] Figure 12 This is a schematic diagram of the fixed seat, side extrusion assembly, and insertion mechanism in a pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer.

[0029] Figure 13 This is a cross-sectional schematic diagram of the fixed seat, side extrusion assembly, and insertion mechanism in a pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer.

[0030] Figure 14 This is a cross-sectional schematic diagram of the fixed seat and lifting mechanism in a pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer.

[0031] Figure 15 This is a schematic diagram of the lifting mechanism, insertion mechanism, and locking mechanism working together in a pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer.

[0032] In the diagram: 1. Submerged lifting AGV trolley; 2. Lifting support platform; 3. Cargo pallet; 4. Positioning protrusion; 5. Shell; 6. Horizontal transfer plate; 7. Angled component; 8. Spring; 9. Arc-shaped outward expansion arm; 10. Fixed seat; 11. Groove; 12. Support column; 13. Angled extrusion plate; 14. Stroke groove; 15. Lifting cylinder; 16. Push rod; 17. Cylinder; 18. Ball bearing; 19. Limiting ring; 20. Guide groove; 21. Insert rod; 22. Protruding rod; 23. Fixing ring; 24. Irregular groove. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] Please see Figures 1-15As an embodiment of the present invention, the pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer includes a submerged lifting AGV trolley 1 and a lifting support platform 2 disposed on the top of the submerged lifting AGV trolley 1. A workpiece transport pallet 3 and multiple positioning protrusions 4 disposed on the bottom of the workpiece transport pallet 3 are disposed above the submerged lifting AGV trolley 1. The lifting support platform 2 has a groove and a housing 5 fixed on the groove. An outward expansion abutment mechanism is slidably installed on both sides of the housing 5. The outward expansion abutment mechanism abuts against the positioning protrusions 4. A fixed base 10 and a lateral extrusion assembly slidably installed on the fixed base 10 are fixedly connected to the bottom of the housing 5. The lateral extrusion assembly and the outward expansion abutment mechanism are extruded in a pressing manner. A lifting mechanism and an insertion mechanism fixedly connected to the lifting mechanism are disposed inside the fixed base 10. The insertion mechanism cooperates with a locking mechanism fixed to the bottom of the workpiece transport pallet 3.

[0035] In this embodiment, after the submersible lifting AGV trolley 1 submerges into the bottom of the cargo pallet 3, it is then lifted by the lifting support platform 2 to raise the cargo pallet 3. Subsequently, by activating the lifting mechanism built into the lifting support platform 2, the lateral extrusion component lifts and cooperates with the outward expansion abutment mechanism, so that the outward expansion abutment mechanism accurately abuts against the pre-set positioning protrusion 4 at the bottom of the cargo pallet 3 after performing the outward expansion action. This adaptive adjustment process can automatically correct the center position of the pallet, overcoming the eccentricity problem caused by initial alignment deviation or workpiece off-center loading from the source. At the same time, the insertion mechanism will rotate during the lifting process and accurately embed into the locking mechanism at the bottom of the cargo pallet 3 for rotational locking, forming a solid mechanical interlock, rigidly fixing the cargo pallet 3 on the lifting platform. This synergistic effect can not only completely avoid the problem of cargo pallet 3 center offset caused by workpiece unilateral off-center loading.

[0036] As a further embodiment of the present invention, the outward expansion contact mechanism includes two transverse plates 6 that are slidably mounted on both sides of the housing 5 and an angled member 7 disposed on one side of the transverse plates 6, and a guide post is disposed on the inner side of the transverse plates 6.

[0037] In this embodiment, two transverse plates 6 are slidably installed on both sides of the housing 5, and each transverse plate 6 is connected to a beveled piece 7 at one end. A guide post is provided in the middle section inside the transverse plate 6.

[0038] As a further embodiment of the present invention, a spring 8 is sleeved on the guide post inside the transverse plate 6, the spring 8 abuts against the outer wall of the housing 5, and both ends of the transverse plate 6 are fixedly connected with arc-shaped outward expansion arms 9, the arc-shaped outward expansion arms 9 abut against the positioning protrusion 4 at the bottom of the carrying tray 3.

[0039] In this embodiment, the spring 8 is sleeved on the guide post inside the transverse plate 6, and the spring 8 abuts against the outer wall of the housing 5. The spring 8 always provides a force for the transverse plate 6 to move into the housing 5. Arc-shaped outward expansion arms 9 are fixedly installed on both sides of each transverse plate 6. When the transverse plate 6 expands to the maximum distance, the arc-shaped outward expansion arms 9 abut against the positioning protrusion 4 at the bottom of the carrying tray 3.

[0040] As a further embodiment of the present invention, the lateral extrusion assembly includes a groove 11 formed on both sides of the fixed base 10 and a support column 12 slidably mounted on the groove 11. The top of the support column 12 is fixedly connected to a beveled extrusion plate 13, and the two beveled extrusion plates 13 are respectively extruded into the beveled members 7 on one side of the two transverse plates 6.

[0041] In this embodiment, grooves 11 are provided on both sides of the top of the fixed base 10, and the inclined extrusion plate 13 slides on the grooves 11 through the support column 12. The inclined surface of the inclined extrusion plate 13 is in contact with the inclined side of the inclined corner piece 7 at the bottom of the transverse plate 6.

[0042] As a further embodiment of the present invention, the lifting mechanism includes a lifting cylinder 15 fixedly connected inside the fixed base 10 and a push rod 16 disposed on the lifting cylinder 15, and a cylinder 17 is rotatably connected to the push rod 16.

[0043] In this embodiment, the lifting cylinder 15 can drive the cylinder 17 to move upward via the push rod 16, and the push rod 16 and the cylinder 17 are connected by a rotating connection.

[0044] As a further embodiment of the present invention, the cylinder 17 is slidably mounted on the inner wall of the fixed base 10, and two limiting rings 19 are fixedly connected to the middle section of the cylinder 17.

[0045] In this embodiment, the outer periphery of the cylinder 17 is in contact with the inner wall of the fixing seat 10, and two limiting rings 19 are fixed at the middle section of the cylinder 17.

[0046] As a further embodiment of the present invention, guide grooves 20 are provided on both of the limiting rings 19, and one end of each of the two inclined extrusion plates 13 is slidably mounted on the guide grooves 20.

[0047] In this embodiment, an arc-shaped guide groove 20 is provided on the limiting ring 19, and one end of the inclined extrusion plate 13 slides on the guide groove 20. When the cylinder 17 is lifted, the inclined extrusion plates 13 on both sides can be lifted synchronously through the limiting ring 19.

[0048] As a further embodiment of the present invention, a travel groove 14 is provided on the inner wall of the fixed base 10. The travel groove 14 is composed of a straight groove and an inclined groove. A ball bearing 18 is embedded in one end of the bottom of the cylinder 17 and is slidably mounted on the travel groove 14.

[0049] In this embodiment, a travel groove 14 is formed on the inner wall of the fixed base 10. The travel groove 14 is designed with two ends, with a straight groove at the bottom and an inclined groove extending along the straight groove. The inclined groove surrounds the inner wall of the fixed base 10 and has a middle length of one-quarter of a circumference. One end of the bottom of the cylinder 17 is embedded with a mounting ball 18, and the cylinder 17 slides on the travel groove 14 through the ball 18.

[0050] As a further embodiment of the present invention, the top of the cylinder 17 is fixedly connected to an insert rod 21 and a protruding rod 22 fixed to one end of the insert rod 21, and the bottom of the carrying tray 3 is fixedly connected to a fixing ring 23 and a shaped groove 24 opened along the outer periphery of the fixing ring 23. The shaped groove 24 is composed of a straight groove and an inclined groove. The shaped groove 24 cooperates with the guide groove 20, and the protruding rod 22 slides in cooperation with the shaped groove 24.

[0051] In this embodiment, the lifting cylinder 15 is activated to drive the push rod 16 and the cylinder 17 to lift. During the process, the ball bearings 18 of the cylinder 17 will lift linearly in the straight section of the stroke groove 14, and the cylinder 17 will drive the two inclined extrusion plates 13 to move, so that the two inclined extrusion plates 13 respectively fit with the inclined edge of the inclined corner piece 7 at the bottom of the transverse plate 6 and squeeze it to both sides, while compressing the spring 8. Then the two transverse plates 6 extend outward, so that the arc-shaped outer expansion arm 9 abuts against the positioning protrusion 4 at the bottom of the carrying tray 3. This process can automatically correct the center position of the carrying tray 3. Simultaneously, the cylinder 17 moves upward, causing the top insert rod 21 to move into the fixing ring 23 at the bottom of the carrying tray 3. At this time, the position of the ball bearing 18 on the cylinder 17 reaches the inclined section of the stroke groove 14. During the process, the cylinder 17 and the ball bearing 18 move in the direction of the inclined section of the stroke groove 14, causing the cylinder 17 to deflect during the upward movement. At the same time, the top insert rod 21 also deflects, causing the protruding rod 22 at one end to engage in the inclined section of the irregular groove 24 for rotation and locking, forming a firm mechanical interlock, and rigidly fixing the carrying tray 3 on the lifting platform. This synergistic effect can not only completely avoid the problem of the center offset of the carrying tray 3 caused by the unilateral load of the workpiece.

[0052] The control method for pallet-type AGV material carts based on aluminum profile hot extrusion die processing and transfer, as described above, includes the following steps: Step 1: After the AGV trolley 1 with its submerged lifting mechanism is submerged at the bottom of the cargo pallet 3, the lifting support platform 2 lifts the cargo pallet 3. At this time, the lifting cylinder 15 is activated to drive the push rod 16 and the cylinder 17 to lift. During the process, the ball bearings 18 of the cylinder 17 will lift in a straight line in the straight section of the stroke groove 14, and the cylinder 17 will drive the two inclined extrusion plates 13 to move. Then, the two inclined extrusion plates 13 will respectively fit against the inclined edge of the inclined corner piece 7 at the bottom of the transverse plate 6 and squeeze it to both sides, compressing the spring 8 during the process. Step 2: Then the two transverse plates 6 extend outwards, so that the arc-shaped outward expansion arm 9 abuts against the positioning protrusion 4 at the bottom of the cargo tray 3. This process can automatically correct the center position of the cargo tray 3. Step 3: Continue to move the cylinder 17 upward, so that the top insertion rod 21 moves into the fixing ring 23 at the bottom of the carrying tray 3. At this time, the position of the ball 18 on the cylinder 17 is in the inclined section of the stroke groove 14. During the process, the cylinder 17 and the ball 18 move in the direction of the inclined section of the stroke groove 14. Step 4: During the ascent, the cylinder 17 deflects along the inclined section of the travel groove 14, and at the same time, the top insert rod 21 also deflects, causing the protruding rod 22 at one end to engage in the inclined section of the irregular groove 24 for rotation and locking, forming a solid mechanical interlock, and rigidly fixing the cargo tray 3 to the lifting platform.

[0053] The above embodiments are exemplary and not restrictive. Therefore, any technical solutions that can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention are included within the scope of the present invention.

Claims

1. A pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer, comprising a submerged lifting AGV trolley (1) and a lifting support platform (2) disposed on the top of the submerged lifting AGV trolley (1), characterized in that, The lurking lifting AGV trolley (1) is provided with a workpiece transport tray (3) and multiple positioning protrusions (4) at the bottom of the workpiece transport tray (3). The lifting support platform (2) is provided with a groove and a housing (5) fixed on the groove. Both sides of the housing (5) are slidably installed with an outward expansion abutment mechanism. The outward expansion abutment mechanism abuts against the positioning protrusions (4). The bottom of the housing (5) is fixedly connected with a fixed seat (10) and a lateral extrusion assembly slidably installed on the fixed seat (10). The lateral extrusion assembly and the outward expansion abutment mechanism are extruded together. The fixed seat (10) is provided with a lifting mechanism and an insertion mechanism fixedly connected to the lifting mechanism. The insertion mechanism cooperates with the locking mechanism fixed at the bottom of the workpiece transport tray (3).

2. The pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer as described in claim 1, characterized in that, The outward expansion contact mechanism includes two transverse plates (6) that are slidably installed on both sides of the housing (5) and an angled member (7) disposed on one side of the transverse plate (6). A guide post is provided on the inner side of the transverse plate (6).

3. The pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer as described in claim 2, characterized in that, A spring (8) is sleeved on the guide post inside the transverse plate (6). The spring (8) abuts against the outer wall of the housing (5). Both ends of the transverse plate (6) are fixedly connected with arc-shaped outer expansion arms (9). The arc-shaped outer expansion arms (9) abut against the positioning protrusions (4) at the bottom of the cargo tray (3).

4. The pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer as described in claim 3, characterized in that, The lateral extrusion assembly includes a groove (11) opened on both sides of the fixed base (10) and a support column (12) slidably installed on the groove (11). The top of the support column (12) is fixedly connected to a beveled extrusion plate (13). The two beveled extrusion plates (13) are respectively extruded into the beveled members (7) on one side of the two transverse plates (6).

5. The pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer as described in claim 4, characterized in that, The lifting mechanism includes a lifting cylinder (15) fixedly connected inside the fixed base (10) and a push rod (16) disposed on the lifting cylinder (15), and a cylinder (17) is rotatably connected to the push rod (16).

6. The pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer as described in claim 5, characterized in that, The cylinder (17) is slidably installed on the inner wall of the fixed seat (10), and two limiting rings (19) are fixedly connected at the middle section of the cylinder (17).

7. The pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer as described in claim 6, characterized in that, Both of the limiting rings (19) are provided with guide grooves (20), and one end of each of the two inclined extrusion plates (13) is slidably mounted on the guide grooves (20).

8. The pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer as described in claim 7, characterized in that, The inner wall of the fixed seat (10) is provided with a stroke groove (14), which is composed of a straight groove and an inclined groove. A ball (18) is embedded in one end of the bottom of the cylinder (17), and the ball (18) is slidably installed on the stroke groove (14).

9. The pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer as described in claim 8, characterized in that, The top of the cylinder (17) is fixedly connected to a rod (21) and a protruding rod (22) fixed to one end of the rod (21). The bottom of the carrying tray (3) is fixedly connected to a fixing ring (23) and a shaped groove (24) opened along the outer periphery of the fixing ring (23). The shaped groove (24) is composed of a straight groove and an inclined groove. The shaped groove (24) cooperates with the guide groove (20). The protruding rod (22) slides with the shaped groove (24).

10. A control method for a pallet-type AGV material trolley based on aluminum profile hot extrusion die processing and transfer as described in any one of claims 1-9, characterized in that, Includes the following steps: Step 1: After the AGV trolley (1) is submerged into the bottom of the cargo pallet (3), the lifting support platform (2) lifts the cargo pallet (3). At this time, the lifting cylinder (15) is started to drive the push rod (16) and the cylinder (17) to lift. During the process, the ball (18) of the cylinder (17) will be lifted in a straight line in the straight section of the stroke groove (14), and the cylinder (17) will drive the two inclined extrusion plates (13) to move. Then the two inclined extrusion plates (13) will fit against the inclined edge of the inclined corner piece (7) at the bottom of the transverse plate (6) and squeeze it to both sides. During the process, the spring (8) is compressed. Step 2: Then the two transverse plates (6) extend outwards, so that the arc-shaped outward expansion arm (9) abuts against the positioning protrusion (4) at the bottom of the cargo tray (3). This process can automatically correct the center position of the cargo tray (3). Step 3: Continue to move the cylinder (17) upward, so that the top insert rod (21) moves into the fixed ring (23) at the bottom of the carrying tray (3). At this time, the position of the ball (18) on the cylinder (17) is in the inclined section of the stroke groove (14). During the process, the cylinder (17) and the ball (18) move in the direction of the inclined section of the stroke groove (14). Step 4: During the ascent, the cylinder (17) deflects along the inclined section of the travel groove (14), and at the same time, the top insert rod (21) also deflects, causing the protruding rod (22) at one end to be inserted into the inclined section of the irregular groove (24) for rotation and locking, forming a solid mechanical interlock, and rigidly fixing the cargo tray (3) on the lifting platform.

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