Automatic remodeling feeding and discharging device

Abstract

The embodiment of the utility model discloses an automatic remodeling feeding and discharging device which comprises a feeding and discharging mechanism, and the feeding and discharging mechanism comprises a main body, a conveying assembly, a lifting assembly and an adjusting and positioning assembly. The main body comprises a first frame, a second frame and a connecting rod for connecting the first frame and the second frame, and the second frame is arranged above the first frame; the conveying assembly is arranged on the first frame and used for driving the tray to move to the lifting assembly in the first preset direction. The lifting assembly is arranged between the first frame and the second frame and used for driving the tray to move to the preset height in the second preset direction. The adjusting and positioning assembly comprises a coarse positioning structure and a fine positioning structure. According to the embodiment of the utility model, automatic remodeling of trays of different sizes and types can be realized, and the positioning accuracy and the production efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of automated production equipment, and in particular to an automatic loading and unloading device for changing types. Background Art

[0002] During the production of liquid crystal displays, batches of display panels are typically placed on trays for storage. Loading and unloading devices are used to load, layer, and clamp the trays, thereby delivering the display panels to predetermined processing stations or process equipment for corresponding process processing.

[0003] With the continuous development of LCDs, the sizes and shapes of their display panels have become increasingly diverse. Consequently, the sizes and types of trays used to hold these panels have also increased. Conventional technology typically relies on manual adjustment to accommodate these varying sizes and types of trays. This manual adjustment can lead to inaccurate positioning. Furthermore, manual adjustment typically takes a long time, resulting in low production efficiency.

[0004] Therefore, it is urgent to provide a new loading and unloading device to solve the above problems. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an automatic loading and unloading device that can automatically change the shape of pallets of different sizes and types, and can also improve positioning accuracy and production efficiency.

[0006] The automatic loading and unloading device provided by the utility model includes a loading and unloading mechanism, which includes: a main body, a transmission component, a lifting component and an adjustment and positioning component;

[0007] The main body includes a first frame, a second frame and a connecting rod connecting the first frame and the second frame, and the second frame is arranged above the first frame;

[0008] The transmission assembly is arranged on the first frame, and is used to drive the tray to move along a first preset direction to the lifting assembly;

[0009] The lifting assembly is disposed between the first frame and the second frame, and is used to drive the tray to move to a preset height along a second preset direction;

[0010] The adjustment and positioning assembly includes a coarse positioning structure and a fine positioning structure, the coarse positioning structure is used to clamp the pallet in the first preset direction and the third preset direction, and the fine positioning structure is used to clamp the pallet at the preset height;

[0011] The first preset direction, the second preset direction, and the third preset direction are perpendicular to each other.

[0012] Furthermore, the transmission component includes a pallet placement platform, a first drive component, and a first screw module. The first screw module includes a first screw and a first movable member that is engaged with the first screw. The pallet placement platform is used to place the pallet. The first drive component is connected to the first screw, and the first movable member is connected to the pallet placement platform. The first drive component drives the first screw to rotate to drive the first movable member to move, thereby driving the pallet placement platform to move in the first preset direction.

[0013] Furthermore, an adjustment block is provided on the tray placement table, and the adjustment block can move along the first preset direction.

[0014] Furthermore, the lifting assembly includes a pallet lifting platform, a second drive assembly, and a second screw module. The second screw module includes a second screw and a second movable member that is transmission-engaged with the outside of the second screw. The second drive assembly is connected to the second screw, and the second movable member is connected to the pallet lifting platform. The second drive assembly drives the second screw to rotate to drive the second movable member to move, thereby driving the pallet lifting platform to move in the second preset direction.

[0015] Furthermore, the coarse positioning structure includes a first coarse positioning component, the first coarse positioning component includes a third drive component, a transmission component and a first clamping component, the third drive component is connected to the transmission component to drive the transmission component to drive the first clamping component connected to the transmission component to clamp the pallet in the third preset direction.

[0016] Furthermore, the transmission assembly includes a transmission screw, a transmission belt, a guide wheel for guiding the transmission belt, and an idler wheel for steering the transmission belt. The transmission screw is connected to the first clamping assembly, and the third drive assembly drives the transmission belt to drive the transmission screw to move to drive the first clamping assembly to clamp the pallet in the third preset direction.

[0017] Furthermore, the coarse positioning structure also includes a second coarse positioning component, the second coarse positioning component includes a fourth drive component, a third screw module and a second clamping component, the third screw module includes a third screw and a third movable member that is transmission-engaged with the outside of the third screw, the fourth drive component is connected to the third screw, the second clamping component is connected to the third movable member, the fourth drive component drives the third screw to rotate to drive the third movable member to move, and then drives the second clamping component to clamp the pallet in the first preset direction.

[0018] Furthermore, the precision positioning structure includes a first precision positioning component and a second precision positioning component, the first precision positioning component is connected to the first clamping component, and is used to apply force to the first clamping component to clamp the pallet in the third preset direction, and the second precision positioning component is connected to the second clamping component, and is used to apply force to the second clamping component to clamp the pallet in the first preset direction.

[0019] Furthermore, the loading and unloading mechanism also includes a limiting assembly, which includes a limiting plate and a limiting column. The limiting plate is fixed on the first clamping assembly on the first frame, and the limiting column is arranged between the first frame and the second frame, and the two sides of the limiting column are respectively connected to the first clamping assembly located on the first frame and the second frame.

[0020] Furthermore, the number of the loading and unloading mechanisms is at least two, and at least two of the loading and unloading mechanisms are combined into the automatic loading and unloading device.

[0021] One or more of the above embodiments of the present invention have at least one or more of the following beneficial effects:

[0022] The present invention enables automatic conversion of pallets of different sizes and types through the coordinated operation of a transmission assembly, a lifting assembly, and an adjustment and positioning assembly. This entire process is automated, reducing repetitive mechanical labor for workers, improving production efficiency, and lowering labor costs. Furthermore, the adjustment and positioning assembly provided in this application includes a coarse positioning structure and a fine positioning structure. The coarse positioning structure is used to clamp the pallet in a first preset direction and a third preset direction, while the fine positioning structure is used to clamp the pallet at a preset height. This dual positioning process improves the accuracy of the pallet's positioning.

[0023] Furthermore, the number of loading and unloading mechanisms is at least two, and at least two of the loading and unloading mechanisms are combined into the automatic loading and unloading device. At least two loading and unloading mechanisms can be adjusted synchronously together. On the one hand, it can prevent the error problem caused by manual adjustment of multiple loading and unloading mechanisms, and on the other hand, it can also improve production efficiency.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. Those skilled in the art will readily appreciate that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. Furthermore, similar numbers in the figures represent similar components, where:

[0026] Figure 1 This is a schematic diagram of the overall structure of the automatic loading and unloading device provided in an embodiment of the present application;

[0027] Figure 2 This is a partial structural diagram of an automatic loading and unloading device for changing shapes provided in an embodiment of the present application;

[0028] Figure 3 This is an enlarged schematic diagram of the partial structure of the automatic type-changing loading and unloading device provided in an embodiment of the present application;

[0029] Figure 4 is a schematic diagram of the structure of the transmission component provided in an embodiment of the present application;

[0030] Figure 5 It is a structural schematic diagram of the lifting assembly provided in an embodiment of the present application.

[0031] Description of Reference Numerals

[0032] First support rod 111, second support rod 112, third support rod 113, fourth support rod 114, fifth support rod 121, sixth support rod 122, seventh support rod 123, eighth support rod 124, connecting rod 130, first cross bar 140, second cross bar 150, transmission assembly 200, pallet placement platform 210, first drive assembly 220, first screw module 230, first guide rail 240, adjustment block 250, lifting assembly 300, pallet lifting platform 310, second drive assembly 320, second screw module 330, adjustment and positioning assembly Part 400, third drive assembly 411, transmission screw 412a, transmission belt 412b, guide wheel 412c, idler wheel 412d, first clamping assembly 413, fourth drive assembly 414, third screw module 415, second clamping assembly 416, second guide rail 417, first fine positioning assembly 421, second fine positioning assembly 422, limit plate 510, limit column 520, guide assembly 600, tray 700, mounting profile 800, fixing plate 810, positioning rod 820, coupling 830, screw seat 840. DETAILED DESCRIPTION

[0033] Some embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0034] As described in the background, with the continuous development of liquid crystal displays (LCDs), the sizes and shapes of their display panels have varied. Consequently, the sizes and types of trays used to hold these panels have also increased. Conventional technology typically relies on manual adjustment to accommodate trays of varying sizes and types. This manual adjustment can lead to inaccurate positioning. Furthermore, manual adjustment typically takes a long time, resulting in low production efficiency.

[0035] In response to the above problems, the embodiment of the present utility model creatively proposes an automatic loading and unloading device for changing shapes. Through the cooperation of the transmission component, the lifting component and the adjustment and positioning component, the automatic change of pallets of different sizes and types can be achieved, and the positioning accuracy and production efficiency can also be improved.

[0036] like Figure 1 As shown, refer to Figure 2-Figure 5 The automatic loading and unloading device includes a loading and unloading mechanism, which includes: a main body, a transmission component 200, a lifting component 300 and an adjustment and positioning component 400.

[0037] The main body includes a first frame, a second frame, and a connecting rod 130 connecting the first and second frames. The second frame is arranged above the first frame. Specifically, the first frame includes a first support rod 111, a second support rod 112, a third support rod 113, and a fourth support rod 114, which are connected end to end. The first support rod 111 and the third support rod 113 are arranged parallel to each other, and the second support rod 112 and the fourth support rod 114 are arranged parallel to each other. The second frame includes a fifth support rod 121, a sixth support rod 122, a seventh support rod 123, and an eighth support rod 124, which are connected end to end. The fifth support rod 121 and the seventh support rod 123 are arranged parallel to each other, and the sixth support rod 122 and the eighth support rod 124 are arranged parallel to each other.

[0038] To further strengthen the structure of the first frame, a plurality of first cross bars 140 are disposed between the first support bar 111 and the third support bar 113. One end of each of the plurality of first cross bars 140 is connected to the first support bar 111, and the other end of each of the plurality of first cross bars 140 is connected to the third support bar 113. Furthermore, to further strengthen the structure of the main body, a second cross bar 150 is disposed between the connecting bar 130 between the first support bar 111 and the fifth support bar 121, the connecting bar 130 between the second support bar 112 and the sixth support bar 122, and the connecting bar 130 between the third support bar 113 and the seventh support bar 123.

[0039] A mounting profile 800 is provided on one side of the transmission component 200 close to the first frame. The transmission component 200 is fixed to the first frame by the mounting profile 800. The transmission component 200 is used to drive the pallet 700 to move along the first preset direction to the lifting component 300. Specifically, the transmission component 200 includes a pallet placement platform 210, a first drive component 220 and a first screw module 230. The first screw module 230 includes a first screw and a first movable member that is engaged with the outside of the first screw. The pallet placement platform 210 is used to place the pallet 700. The first drive component 220 is connected to the first screw, and the first movable member is connected to the pallet placement platform 210. The first drive component 220 drives the first screw to rotate to drive the first movable member to move, thereby driving the pallet placement platform 210 to move in the first preset direction. As a schematic illustration, as shown in FIG. Figure 1 、 Figure 2 As shown, the X direction is the first preset direction.

[0040] In a specific embodiment, a first guide rail 240 is also provided on the transmission component 200, and the tray placement platform 210 is slidingly connected to the first guide rail 240. The first drive component 220 drives the first screw to rotate to drive the first moving part to move, thereby driving the tray placement platform 210 to move along the first preset direction on the first guide rail 240.

[0041] To accommodate pallets 700 of different sizes, the pallet placement platform 210 is further provided with an adjustment block 250 that can move along a first predetermined direction to align the pallets 700. In a preferred embodiment, the adjustment block 250 is disposed at one end of the pallet placement platform 210 near the lifting assembly 300.

[0042] The lifting assembly 300 is arranged between the first frame and the second frame. The lifting assembly 300 is used to drive the pallet 700 to move to a preset height along the second preset direction. The second preset direction and the first preset direction are perpendicular to each other. Specifically, the lifting assembly 300 includes a pallet lifting platform 310, a second drive assembly 320 and a second screw module 330. The second screw module 330 includes a second screw and a second moving member that is engaged with the outside of the second screw. The second drive assembly 320 is connected to the second screw, and the second moving member is connected to the pallet lifting platform 310. The second drive assembly 320 drives the second screw to rotate to drive the second moving member to move, thereby driving the pallet lifting platform 310 to move in the second preset direction. As a schematic illustration, as shown in FIG. Figure 1 、 Figure 2 As shown, the Z direction is the second preset direction.

[0043] A plurality of fixing plates 810 are further provided on one side of the lifting assembly 300 close to the connecting rod 130, and the lifting assembly 300 is fixed to the connecting rod 130 through the plurality of fixing plates 810. In addition, a positioning rod 820 is further provided on the lifting assembly 300, and the positioning rod 820 can position the movement of the pallet lifting platform 310.

[0044] In the present application, the first drive component 220 and the second drive component 320 are preferably servo motors. The combination of a servo motor and a screw module can improve the positioning accuracy and lifting displacement stability while simplifying the structure of the overall device.

[0045] The adjustment and positioning component 400 is set on the main body, and the adjustment and positioning component 400 includes a coarse positioning structure and a fine positioning structure. The coarse positioning structure is used to clamp the tray 700 in the first preset direction and the third preset direction, and the fine positioning structure is used to clamp the tray 700 at a preset height. Through two positionings, the positioning accuracy of the tray 700 can be improved.

[0046] It should be noted that the first preset direction, the second preset direction, and the third preset direction are perpendicular to each other. For example, Figure 1 、 Figure 2 As shown, the Y direction is the third preset direction.

[0047] The coarse positioning structure includes a first coarse positioning assembly, which includes a third drive assembly 411, a transmission assembly, and a first clamping assembly 413. The third drive assembly 411 is connected to the transmission assembly to drive the transmission assembly to drive the first clamping assembly connected to the transmission assembly to clamp the tray 700 in the third preset direction. Specifically, the transmission assembly includes a transmission screw 412a, a transmission belt 412b, a guide wheel 412c for guiding the transmission belt 412b, and an idler wheel 412d for steering the transmission belt 412b. The third drive assembly 411 drives the transmission belt 412b to drive the transmission screw 412a to move, thereby driving the first clamping assembly 413 to clamp the tray 700 in the third preset direction.

[0048] Furthermore, the coarse positioning structure includes a second coarse positioning assembly, which includes a fourth drive assembly 414, a third screw module 415, and a second clamping assembly 416. The third screw module 415 includes a third screw and a third movable member that is transmission-engaged with the third screw. The fourth drive assembly 414 is connected to the third screw, and the second clamping assembly 416 is connected to the third movable member. The fourth drive assembly 414 drives the third screw to rotate, thereby driving the third movable member to move, thereby driving the second clamping assembly 416 to clamp the tray 700 in the first predetermined direction.

[0049] In a specific embodiment, the coarse positioning structure also includes a second guide rail 417, the second clamping assembly 416 is slidingly connected to the second guide rail 417, and the fourth drive assembly 414 drives the third screw rod to rotate to drive the third moving part to move, thereby driving the second clamping assembly 416 to clamp the tray 700 on the second guide rail 417 along the first preset direction.

[0050] Similarly, the third drive component 411 and the fourth drive component 414 are preferably servo motors, and a combination of a servo motor and a transmission belt, a transmission screw or a servo motor and a screw module is used. While improving the positioning accuracy and the lifting displacement stability, the structure of the overall device can be simplified.

[0051] In specific implementation, depending on the size of the tray 700, the third drive assembly 411 drives the transmission belt 412b, which in turn drives the transmission screw 412a. The movement of the transmission screw 412a drives the first clamping assembly 413 to move toward each other, thereby clamping the tray 700 in the third predetermined direction. The fourth drive assembly 414 then drives the third screw to rotate, thereby driving the third moving member to move, which in turn drives the second clamping assembly 416 to clamp the tray 700 along the second guide rail 417 along the first predetermined direction. It should be noted that the clamping of the tray 700 by the first clamping assembly 413 and the second clamping assembly 416 does not affect the movement of the tray 700 within the loading and unloading mechanism.

[0052] After the lifting assembly 300 raises the pallet 700 to a preset height, the precision positioning mechanism clamps the pallet 700. Once the product is removed from the pallet 700, the precision positioning mechanism releases, and the lifting assembly 300 and the conveyor assembly 200 deliver the empty pallet to the discharge port, thus achieving automatic loading and unloading. Furthermore, sensors are installed on the main body to automatically record the position data of pallets of different sizes, thereby enhancing the device's level of automation.

[0053] Specifically, the fine positioning structure includes a first fine positioning assembly 421 and a second fine positioning assembly 422. The first fine positioning assembly 421 is connected to the first clamping assembly 413 on the second frame. The first fine positioning assembly 421 is used to apply a force to the first clamping assembly 413 to clamp the pallet 700 in the third preset direction. The second fine positioning assembly 422 is connected to the second clamping assembly 416 on the second frame. The second fine positioning assembly 422 is used to apply a force to the second clamping assembly 416 to clamp the pallet 700 in the first preset direction. It should be noted that the first fine positioning assembly 421 and the second fine positioning assembly 422 respectively apply forces to the first clamping assembly 413 and the second clamping assembly 416, thereby preventing the pallet 700 from moving in the loading and unloading mechanism.

[0054] As a preferred embodiment, the first precision positioning component 421 and the second precision positioning component 422 in the present application are cylinders. Since the cylinder has excellent linear driving force, the use of cylinders for driving facilitates electrical control, which can improve the stability of the movement of the first clamping component 413 and the second clamping component 416, thereby achieving their clamping of the pallet 700.

[0055] The loading and unloading mechanism also includes a limiting assembly and a guide assembly 600. The limiting assembly is used to limit the pallet 700 to prevent it from deviating from its normal motion trajectory, and the guide assembly 600 is used to guide the movement of the pallet 700. The limiting assembly includes a limiting plate 510 and a limiting column 520. The limiting plate 510 is fixed to the first clamping assembly 413 on the first frame. In order to better limit the pallet 700, in the embodiment of the present application, the number of limiting plates 510 is four, of which two limiting plates 510 are fixed to the first clamping assembly 413 on the first support rod 111, and the other two limiting plates 510 are symmetrically fixed to the first clamping assembly 413 on the third support rod 113. The limiting column 520 is fixed between the first frame and the second frame, and the two ends of the limiting column 520 are respectively connected to the first clamping assembly 413 located on the first frame and the second frame. To better position the tray 700, in the embodiment of the present application, four limiting posts 520 are provided. Two limiting posts 520 have their ends connected to the first clamping assemblies 413 on the first support rod 111 and the fifth support rod 121, respectively. The other two limiting posts 520 have their ends connected to the first clamping assemblies 413 on the third support rod 113 and the seventh support rod 123, respectively. A guide assembly 600 is provided on the first frame and connected to the first clamping assembly 413 on the first frame. Specifically, the guide assembly 600 may be a guide shaft, with its ends connected to the first clamping assemblies 413 on the first support rod 111 and the third support rod 113, respectively. The number of guide shafts may be multiple.

[0056] Furthermore, the number of the loading and unloading mechanisms is at least two, and at least two of the loading and unloading mechanisms are combined to form the automatic loading and unloading device. In the automatic loading and unloading device provided in the present application, at least two loading and unloading mechanisms can be adjusted synchronously together, which can prevent errors caused by manual adjustment of multiple loading and unloading mechanisms on the one hand, and improve production efficiency on the other hand. In the present application, a coupling 830 and a screw seat 840 are provided between adjacent loading and unloading mechanisms. The coupling 830 is used to connect the transmission screw 412a between adjacent loading and unloading mechanisms so that they rotate together and transmit torque.

[0057] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0059] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An automatic loading and unloading device, characterized in that: The automatic loading and unloading device includes a loading and unloading mechanism, which includes: a main body, a transmission component, a lifting component and an adjustment and positioning component; The main body includes a first frame, a second frame and a connecting rod connecting the first frame and the second frame, and the second frame is arranged above the first frame; The transmission assembly is arranged on the first frame, and is used to drive the tray to move along a first preset direction to the lifting assembly; The lifting assembly is disposed between the first frame and the second frame, and is used to drive the tray to move to a preset height along a second preset direction; The adjustment and positioning assembly includes a coarse positioning structure and a fine positioning structure, the coarse positioning structure is used to clamp the pallet in the first preset direction and the third preset direction, and the fine positioning structure is used to clamp the pallet at the preset height; The first preset direction, the second preset direction, and the third preset direction are perpendicular to each other.

2. The automatic loading and unloading device for changing shapes according to claim 1, characterized in that: The transmission component includes a pallet placement platform, a first drive component, and a first screw module. The first screw module includes a first screw and a first movable member that is engaged with the first screw. The pallet placement platform is used to place the pallet. The first drive component is connected to the first screw, and the first movable member is connected to the pallet placement platform. The first drive component drives the first screw to rotate to drive the first movable member to move, thereby driving the pallet placement platform to move in the first preset direction.

3. The automatic loading and unloading device for changing shapes according to claim 2, characterized in that: An adjustment block is provided on the tray placement platform, and the adjustment block is capable of moving along the first preset direction.

4. The automatic loading and unloading device for changing shapes according to claim 1, characterized in that: The lifting assembly includes a pallet lifting platform, a second drive assembly, and a second screw module. The second screw module includes a second screw and a second movable member that is engaged with the outside of the second screw. The second drive assembly is connected to the second screw, and the second movable member is connected to the pallet lifting platform. The second drive assembly drives the second screw to rotate to drive the second movable member to move, thereby driving the pallet lifting platform to move in the second preset direction.

5. The automatic loading and unloading device for changing shapes according to claim 1, characterized in that: The coarse positioning structure includes a first coarse positioning component, the first coarse positioning component includes a third drive component, a transmission component and a first clamping component, the third drive component is connected to the transmission component to drive the transmission component to drive the first clamping component connected to the transmission component to clamp the pallet in the third preset direction.

6. The automatic loading and unloading device for changing shapes according to claim 5, characterized in that: The transmission assembly includes a transmission screw, a transmission belt, a guide wheel for guiding the transmission belt, and an idler wheel for steering the transmission belt. The transmission screw is connected to the first clamping assembly. The third drive assembly drives the transmission belt to drive the transmission screw to move so as to drive the first clamping assembly to clamp the pallet in the third preset direction.

7. The automatic loading and unloading device for changing shapes according to claim 5, characterized in that: The coarse positioning structure also includes a second coarse positioning component, the second coarse positioning component includes a fourth drive component, a third screw module and a second clamping component, the third screw module includes a third screw and a third movable member that is transmission-engaged with the outside of the third screw, the fourth drive component is connected to the third screw, the second clamping component is connected to the third movable member, the fourth drive component drives the third screw to rotate to drive the third movable member to move, and then drives the second clamping component to clamp the pallet in the first preset direction.

8. The automatic loading and unloading device for changing shapes according to claim 7, characterized in that: The precision positioning structure includes a first precision positioning component and a second precision positioning component. The first precision positioning component is connected to the first clamping component and is used to apply force to the first clamping component to clamp the pallet in the third preset direction. The second precision positioning component is connected to the second clamping component and is used to apply force to the second clamping component to clamp the pallet in the first preset direction.

9. The automatic loading and unloading device for changing shapes according to claim 5, characterized in that: The loading and unloading mechanism also includes a limiting assembly, which includes a limiting plate and a limiting column. The limiting plate is fixed on the first clamping assembly on the first frame. The limiting column is arranged between the first frame and the second frame, and the two sides of the limiting column are respectively connected to the first clamping assembly located on the first frame and the second frame.

10. The automatic loading and unloading device for changing shapes according to any one of claims 1 to 9, characterized in that: The number of the loading and unloading mechanisms is at least two, and at least two of the loading and unloading mechanisms are combined to form the automatic loading and unloading device.

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