Auxiliary device for stacking diffusion plates

Abstract

The invention belongs to the technical field of diffusion plates, and discloses a diffusion plate stacking auxiliary device which comprises a supporting base, a conveying mechanism is arranged outside the supporting base, a buffering mechanism is installed at the top end of the conveying mechanism, a stacking mechanism is installed in the supporting base, and a disassembling and assembling mechanism is arranged in the supporting base. Through cooperation of structures such as a supporting rod, a first reset spring and a stacking table, the device can place a diffusion plate at the top end of the stacking table, the weight of the top end of the stacking table changes at the moment, the restoring force of the first reset spring is multiple of the weight of the diffusion plate, the first reset spring deforms, and then the position of the stacking table moves downwards; the top ends of the diffusion plates are located at the height of the top end before the stacking table moves downwards, it can be guaranteed that the top ends of the stacks are at the same height all the time when each diffusion plate is stacked subsequently, and therefore the stacking safety is guaranteed, and the purpose that the device assists in stacking the diffusion plates conveniently is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of diffusion plates, and specifically relates to an auxiliary device for stacking diffusion plates. Background Art

[0002] Diffusion plates can be classified into gas diffusion plates, sound diffusion plates, liquid diffusion plates, light diffusion plates, flavor diffusion plates, and light diffusion plates. Any material that can evenly disperse molecules is collectively referred to as a diffusion plate. Light diffusion plates are widely used in liquid crystal displays, LED lighting, and imaging display systems. Its main function is to fully scatter the incident light to achieve a softer and more uniform illumination effect. The biggest feature of the light diffusion plate is that it causes great interference to light. When producing diffusion plates, it is necessary to stack the diffusion plates on the conveying device for easy handling and transfer. Therefore, a stacking auxiliary device is needed to stack the diffusion plates.

[0003] Patent No. CN107628445B discloses a sheet stacking device, which includes: a frame; a lifting table, which is arranged on the frame in a liftable manner, and the lifting table is driven by a lifting mechanism to lift; a tray, which is placed on the lifting table; a conveyor belt, the belt surface of which slopes downward from front to back; and the rear end of the conveyor belt is located in front of the lifting table; a moving seat, which is arranged on the frame in a slidable manner back and forth, and the moving seat is driven by a sliding mechanism to slide; the lifting table and the rear end of the conveyor belt are located below the moving seat; and a suction cup, which is arranged at the bottom of the moving seat, and the lower end surface of the suction cup is parallel to the belt surface of the conveyor belt. The sheet is transferred from the conveyor belt to the tray through the moving seat and the suction cup, and then the lifting table controls the tray to gradually lower, so that the sheets can be automatically stacked on the tray, which can effectively reduce the labor intensity of workers and avoid damaging the sheets.

[0004] However, when using this device, it is not possible to guide the diffusion plates during transportation, so that the position of the diffusion plates is likely to shift during transportation, resulting in a change in the position during subsequent suction stacking, thus affecting the stacking efficiency, and it is also impossible to adjust the stacking height and cannot make functional adjustments according to different batches of diffusion plates. Summary of the Invention

[0005] To solve the problems raised in the above background art, the present invention provides an auxiliary device for stacking diffusion plates.

[0006] To achieve the above object, the present invention provides the following technical solution: An auxiliary device for stacking diffusion plates, including a support base, a conveying mechanism is arranged outside the support base, a buffer mechanism is installed at the top of the conveying mechanism, a stacking mechanism is installed inside the support base, and a disassembly and assembly mechanism is arranged inside the support base; The conveying mechanism includes a conveying frame, a servo motor, and a first transmission shaft. The conveying frame is arranged outside the support base. A servo motor is fixed to the outside of the conveying frame, and a first transmission shaft is fixed to the rotating end of the servo motor; The buffering mechanism includes a buffering frame, a support block, and a buffering cylinder. The buffering frame is fixed to the top of the conveying frame. A support block is movably connected inside the buffering frame, and a buffering cylinder is rotatably connected inside the support block; The palletizing mechanism includes a support rod, a first return spring, and a palletizing table. The support rod is fixed inside the support base. A first return spring is sleeved on the outside of the support rod, and a palletizing table is sleeved on the outside of the support rod.

[0007] Preferably, a second transmission shaft is rotatably connected inside the conveying frame. A conveyor belt is sleeved on the outside of the first transmission shaft, and a conveyor belt is sleeved on the outside of the second transmission shaft. The first transmission shaft and the second transmission shaft are symmetrically distributed about the central axis of the conveying frame, which can convey the diffusion plate more stably.

[0008] Preferably, a buffering spring is fixed to the outside of the support block. There are two groups of buffering frames, which are symmetrically distributed about the central axis of the conveying frame. There are several groups of support blocks and buffering cylinders, and the support blocks and buffering cylinders are arranged in an array. By setting several groups of buffering cylinders.

[0009] Preferably, there are two groups of support blocks, which are symmetrically distributed about the central axis of the buffering cylinder. The outer wall of the support block fits against the inner wall of the buffering frame, and the support block and the buffering frame are slidably connected. The buffering spring is used to squeeze the support block and keep it in a moving-outward trend. The support blocks are symmetrically distributed about the central axis of the buffering cylinder. This design enables the buffering mechanism to be evenly stressed when being squeezed by the diffusion plate, avoiding mechanism deformation or damage caused by uneven stress, thereby enhancing the stability of the entire buffering mechanism. And the outer wall of the support block closely fits against the inner wall of the buffering frame and is slidably connected, ensuring that the buffering cylinder can smoothly slide and contract when being squeezed by the diffusion plate. At the same time, the restoring force of the buffering spring can quickly push the buffering cylinder back to its original position, effectively correcting the position deviation of the diffusion plate during the conveying process, improving the deviation correction efficiency. And due to the array distribution of the support blocks and buffering cylinders and the elastic design of the buffering spring, this buffering mechanism can adapt to diffusion plates of different sizes and weights, and can effectively buffer and correct the deviation of the diffusion plate without frequently adjusting the mechanism parameters.

[0010] Preferably, there are three groups of the support rods, the first return springs and the palletizing tables. The support rods, the first return springs and the palletizing tables are arranged in an array. The inner wall of the palletizing table fits the outer wall of the support rod. The palletizing table is slidably connected to the support rod. The first return spring is used to squeeze the palletizing table and keep it in an upward moving trend.

[0011] Preferably, a height-limiting seat is slidably connected inside the support base. A grasping rod is fixed to the outside of the height-limiting seat. A mounting seat is fixed to the outside of the height-limiting seat. A first limiting rod is fixed to the outside of the mounting seat. A first limiting disk is fixed to the outside of the first limiting rod. A second limiting disk is sleeved on the outside of the first limiting rod. A limiting seat is fixed inside the support base. A second limiting rod is movably connected inside the limiting seat. A second return spring is sleeved on the outside of the second limiting rod. A limiting block is fixed to the outside of the second limiting rod.

[0012] Preferably, there are two groups of the mounting seats which are symmetrically distributed about the central axis of the height-limiting seat. The outer diameter of the second limiting disk is larger than that of the first limiting disk. The inner wall of the second limiting disk fits the outer wall of the first limiting rod. The second limiting disk is slidably connected to the first limiting rod.

[0013] Preferably, there are two groups of the limiting seats which are symmetrically distributed about the central axis of the support base. The outer wall of the second limiting rod fits the inner wall of the limiting seat. The second limiting rod is slidably connected to the limiting seat. There are two groups of the second limiting rods which are symmetrically distributed about the central axis of the limiting seat.

[0014] Preferably, the second return spring is used to squeeze the second limiting rod and the limiting block and keep them in an inward moving trend. An inclined surface is provided at one end of the limiting block.

[0015] Preferably, a robotic arm assembly is fixed to the top end of the support base. A conveying cylinder is fixed to one end of the robotic arm assembly. A suction cup assembly is fixed to the extending end of the conveying cylinder. A plurality of suction cups are provided at the bottom end of the suction cup assembly.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the cooperation of structures such as the support rod, the first return spring, and the palletizing table, the device can place the diffusion plate on the top end of the palletizing table. At this time, the weight at the top end of the palletizing table changes. The restoring force of the first return spring is a multiple of the weight of the diffusion plate, causing the first return spring to deform and then the position of the palletizing table to move downward, so that the top end of the diffusion plate is at the same height as the top end of the palletizing table before the downward movement, and the top position of the stack can always be guaranteed to be at the same height for each subsequent stack of a diffusion plate, thus ensuring the safety of the stack and achieving the purpose of facilitating the device to assist in palletizing the diffusion plate.

[0017] Through the cooperation of structures such as a buffer frame, a support block, and a buffer cylinder, when the position of the diffusion plate changes and contacts the buffer cylinder, the buffer cylinder is squeezed, causing the buffer cylinder to slide and contract along with the support block, and the buffer cylinder is pushed back by the restoring force of the buffer spring, thereby correcting the deviation of the position of the diffusion plate, so as to achieve the purpose of facilitating the device to correct the conveying position when conveying the diffusion plate.

[0018] Through the cooperation of structures such as a height limit seat, a grasping rod, and a mounting seat, the device can limit the height of the palletizing table from descending by setting the height limit seat at the bottom inside the support base through its own shape, thereby adjusting the stacking height, and can quickly insert and remove the height limit seat, making the device more flexible when adjusting the stacking height. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the overall right view structure of the present invention; Figure 3 is a schematic diagram of the conveying mechanism structure of the present invention; Figure 4 is a schematic diagram of the cross-sectional structure of the buffer mechanism of the present invention; Figure 5 is a schematic diagram of the palletizing assembly structure of the present invention; Figure 6 is a schematic diagram of the bottom view structure of the palletizing assembly of the present invention; Figure 7 is a schematic diagram of the palletizing mechanism structure of the present invention; Figure 8 is a schematic diagram of the internal structure of the palletizing mechanism of the present invention; Figure 9 is a schematic diagram of the cross-sectional structure of the support base of the present invention; Figure 10 of the present invention Figure 9 is a schematic diagram of the enlarged partial cross-sectional structure at A in the figure; Figure 11 is a schematic diagram of the structure of multiple height limit seats with different heights of the present invention.

[0020] In the figure: 1, support base; 2, conveying mechanism; 201, conveying frame; 202, servo motor; 203, first transmission shaft; 204, second transmission shaft; 205, conveyor belt; 3, buffer mechanism; 301, buffer frame; 302, support block; 303, buffer cylinder; 304, buffer spring; 4, robotic arm assembly; 5, conveying cylinder; 6, suction cup assembly; 7, palletizing mechanism; 701, support rod; 702, first return spring; 703, palletizing table; 8, disassembly and assembly mechanism; 801, height limit seat; 802, gripping rod; 803, mounting seat; 804, first limit rod; 805, first limit disk; 806, second limit disk; 807, limit seat; 808, second limit rod; 809, second return spring; 810, limit block. Detailed implementation manner

[0021] As Figures 1 to 11 shown, the present invention provides an auxiliary device for palletizing diffusion plates, including a support base 1. A conveying mechanism 2 is arranged outside the support base 1. A buffer mechanism 3 is installed at the top of the conveying mechanism 2. A palletizing mechanism 7 is installed inside the support base 1. A disassembly and assembly mechanism 8 is arranged inside the support base 1. A robotic arm assembly 4 is fixed at the top of the support base 1. One end of the robotic arm assembly 4 is fixed with a conveying cylinder 5. The extending end of the conveying cylinder 5 is fixed with a suction cup assembly 6. A plurality of groups of suction cups are arranged at the bottom end of the suction cup assembly 6.

[0022] Adopting the above scheme: After the diffusion plate is conveyed to the adsorption groove opened at the top of the support base 1 through the conveyor belt 205, the conveying cylinder 5 is started to move the suction cup assembly 6 downward as a whole. At this time, the suction cup assembly 6 adsorbs the diffusion plate and transfers it to the top of the palletizing table 703 through the robotic arm assembly 4 for palletizing.

[0023] As Figures 1 to 3 shown, the conveying mechanism 2 includes a conveying frame 201, a servo motor 202 and a first transmission shaft 203. The conveying frame 201 is arranged outside the support base 1. The servo motor 202 is fixed outside the conveying frame 201. The rotating end of the servo motor 202 is fixed with the first transmission shaft 203. The second transmission shaft 204 is rotatably connected inside the conveying frame 201. The conveyor belt 205 is sleeved outside the first transmission shaft 203. The conveyor belt 205 is sleeved outside the second transmission shaft 204. The first transmission shaft 203 and the second transmission shaft 204 are symmetrically distributed about the central axis of the conveying frame 201.

[0024] Adopting the above scheme: By starting the servo motor 202 to drive the first transmission shaft 203 to rotate, the conveyor belt 205 is driven to move, and through the guidance of the second transmission shaft 204, the diffusion plate at the top of the conveyor belt 205 can be conveyed when the conveyor belt 205 moves, so that it falls into the adsorption groove of the support base 1.

[0025] AsFigures 1 to 4 As shown in the figure, the buffer mechanism 3 includes a buffer frame 301, a support block 302 and a buffer cylinder 303. The buffer frame 301 is fixed to the top of the conveying frame 201. A support block 302 is movably connected inside the buffer frame 301. A buffer cylinder 303 is rotatably connected inside the support block 302. A buffer spring 304 is fixed to the outside of the support block 302. There are two groups of buffer frames 301, and the buffer frames 301 are symmetrically distributed about the central axis of the conveying frame 201. There are several groups of support blocks 302 and buffer cylinders 303, and the support blocks 302 and buffer cylinders 303 are arranged in an array. There are two groups of support blocks 302, and the support blocks 302 are symmetrically distributed about the central axis of the buffer cylinder 303. The outer wall of the support block 302 fits against the inner wall of the buffer frame 301, and the support block 302 and the buffer frame 301 are slidably connected. The buffer spring 304 is used to squeeze the support block 302 and keep it in a moving-outward trend.

[0026] Adopting the above solution: By fixing the buffer frame 301 on both sides of the conveyor belt 205, the outer wall of the buffer cylinder 303 can be in contact with the diffusion plate. Then, when the position of the diffusion plate changes and contacts the buffer cylinder 303, the buffer cylinder 303 is squeezed, causing the buffer cylinder 303 to slide and contract along with the support block 302, and the buffer cylinder 303 is pushed back by the restoring force of the buffer spring 304, thereby correcting the offset of the position of the diffusion plate and ensuring that the conveying position of the diffusion plate does not change.

[0027] As Figures 1 to 9 shown in the figure, the palletizing mechanism 7 includes a support rod 701, a first return spring 702 and a palletizing table 703. The support rod 701 is fixed inside the support base 1. A first return spring 702 is sleeved on the outside of the support rod 701. A palletizing table 703 is sleeved on the outside of the support rod 701. There are three groups of support rods 701, first return springs 702 and palletizing tables 703, and the support rods 701, first return springs 702 and palletizing tables 703 are arranged in an array. The inner wall of the palletizing table 703 fits against the outer wall of the support rod 701, and the palletizing table 703 and the support rod 701 are slidably connected. The first return spring 702 is used to squeeze the palletizing table 703 and keep it in an upward moving trend.

[0028] Adopting the above solution: After adsorbing the diffusion plate by the robotic arm assembly 4, the conveying cylinder 5, and the suction cup assembly 6, place it on the top of the palletizing table 703. At this time, the weight on the top of the palletizing table 703 changes, and the restoring force of the first return spring 702 is a multiple of the weight of the diffusion plate, causing the first return spring 702 to deform and then the position of the palletizing table 703 to move downward, so that the top of the diffusion plate is at the height of the top of the palletizing table 703 before it moves downward. And for each subsequent stacked diffusion plate, it can always ensure that the top position of the stack is at the same height, thus ensuring the safety of stacking. After completing the stacking on one side of the palletizing table 703, stack on the other end palletizing table 703, and the stacked diffusion plates are continuously conveyed by workers or conveying devices for subsequent processing.

[0029] As Figures 1 to 11 shown, a height-limiting seat 801 is slidably connected inside the support base 1. A grasping rod 802 is fixed to the outside of the height-limiting seat 801. A mounting seat 803 is fixed to the outside of the height-limiting seat 801. A first limiting rod 804 is fixed to the outside of the mounting seat 803. A first limiting disk 805 is fixed to the outside of the first limiting rod 804. A second limiting disk 806 is sleeved on the outside of the first limiting rod 804. There are two groups of mounting seats 803 symmetrically distributed about the central axis of the height-limiting seat 801. The outer diameter of the second limiting disk 806 is larger than that of the first limiting disk 805. The inner wall of the second limiting disk 806 fits the outer wall of the first limiting rod 804, and the second limiting disk 806 and the first limiting rod 804 are slidably connected.

[0030] As Figures 1 to 11 shown, a limiting seat 807 is fixed inside the support base 1. A second limiting rod 808 is movably connected inside the limiting seat 807. There are two groups of limiting seats 807 symmetrically distributed about the central axis of the support base 1. The outer wall of the second limiting rod 808 fits the inner wall of the limiting seat 807, and the second limiting rod 808 and the limiting seat 807 are slidably connected. There are two groups of second limiting rods 808 symmetrically distributed about the central axis of the limiting seat 807. A second return spring 809 is sleeved on the outside of the second limiting rod 808. A limiting block 810 is fixed to the outside of the second limiting rod 808. The second return spring 809 is used to squeeze the second limiting rod 808 and the limiting block 810 and keep them in a moving trend inward. One end of the limiting block 810 is provided with an inclined surface.

[0031] Adopt the above solution: By setting the height-limiting seat 801 at the bottom inside the support base 1, the height-limiting seat 801 can limit the descending height of the palletizing table 703 through its own shape, thereby adjusting the stacking height. By inserting the height-limiting seat 801 into the support base 1, the first limiting disc 805 squeezes the limiting block 810, the limiting block 810 contracts, and the second return spring 809 returns the limiting block 810 to its original position after the first limiting disc 805 passes, limiting the first limiting disc 805, and further limiting the entire height-limiting seat 801, so as to fix the height-limiting seat 801. When it is necessary to remove the height-limiting seat 801 to change the stacking height, continue to press the height-limiting seat 801, so that the second limiting disc 806 squeezes the limiting block 810, the limiting block 810 contracts, and the second return spring 809 returns the limiting block 810 to its original position after the second limiting disc 806 passes. At this time, the limiting block 810 can jack up the second limiting disc 806, so that the second limiting disc 806 and the first limiting disc 805 are in contact. At this time, pulling the grab bar 802 can remove the height-limiting seat 801.

[0032] Working principle and usage process of the present invention: By starting the servo motor 202 to drive the rotation of the first transmission shaft 203, and then driving the movement of the conveyor belt 205. Through the guidance of the second transmission shaft 204, when the conveyor belt 205 moves, it can convey the diffusion plate at the top of the conveyor belt 205, causing it to fall into the adsorption groove of the support base 1. Fix the buffer frame 301 on both sides of the conveyor belt 205, so that the outer wall of the buffer cylinder 303 can contact the diffusion plate. Then, when the position of the diffusion plate changes and contacts the buffer cylinder 303, the buffer cylinder 303 is squeezed, causing the buffer cylinder 303 to slide and contract along with the support block 302. And through the restoring force of the buffer spring 304, the buffer cylinder 303 is pushed back, thereby correcting the deviation of the position of the diffusion plate, so that the conveying position of the diffusion plate will not change. After the diffusion plate is conveyed to the adsorption groove opened at the top of the support base 1 by the conveyor belt 205, start the conveying cylinder 5 to move the suction cup assembly 6 downward as a whole. At this time, the suction cup assembly 6 adsorbs the diffusion plate and transfers it to the top of the palletizing table 703 through the robotic arm assembly 4 for stacking. At this time, the weight at the top of the palletizing table 703 changes. The restoring force of the first return spring 702 is a multiple of the weight of the diffusion plate, causing the first return spring 702 to deform and resulting in the downward movement of the position of the palletizing table 703, so that the top of the diffusion plate is at the height of the top of the palletizing table 703 before it moves downward. And for each subsequent stacked diffusion plate, it can always ensure that the top position of the stack is at the same height, thus ensuring the safety of stacking. After completing the stacking on one side of the palletizing table 703, stack on the other end palletizing table 703. The stacked diffusion plates are continuously conveyed subsequently by workers or a conveying device. By arranging the height limiting seat 801 at the bottom inside the support base 1, the height limiting seat 801 can limit the height of the downward movement of the palletizing table 703 through its own shape, thereby adjusting the stacking height. By inserting the height limiting seat 801 into the support base 1, the first limiting disk 805 squeezes the limiting block 810, and the limiting block 810 contracts. After the first limiting disk 805 passes, the second return spring 809 resets the limiting block 810, limiting the first limiting disk 805, and then limiting the entire height limiting seat 801, so as to fix the height limiting seat 801. When it is necessary to remove the height limiting seat 801 to change the stacking height, continue to press the height limiting seat 801, so that the second limiting disk 806 squeezes the limiting block 810, and the limiting block 810 contracts. After the second limiting disk 806 passes, the second return spring 809 resets the limiting block 810. At this time, the limiting block 810 can push up the second limiting disk 806, so that the second limiting disk 806 and the first limiting disk 805 are in contact. At this time, pulling the grasping rod 802 can remove the height limiting seat 801.

[0033] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Identical components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. Auxiliary device for stacking diffusion plates, comprising a support base (1), characterized in that: An external conveying mechanism (2) is provided on the support base (1). A buffer mechanism (3) is installed at the top of the conveying mechanism (2). A palletizing mechanism (7) is installed inside the support base (1). A disassembly and assembly mechanism (8) is provided inside the support base (1); The conveying mechanism (2) includes a conveying frame (201), a servo motor (202), and a first transmission shaft (203). The conveying frame (201) is arranged outside the support base (1). The servo motor (202) is fixed to the outside of the conveying frame (201). The rotating end of the servo motor (202) is fixed to the first transmission shaft (203); The buffer mechanism (3) includes a buffer frame (301), a support block (302), and a buffer cylinder (303). The buffer frame (301) is fixed to the top of the conveying frame (201). A support block (302) is movably connected inside the buffer frame (301). A buffer cylinder (303) is rotatably connected inside the support block (302); The palletizing mechanism (7) includes a support rod (701), a first return spring (702), and a palletizing table (703). The support rod (701) is fixed inside the support base (1). The first return spring (702) is sleeved on the outside of the support rod (701). The palletizing table (703) is sleeved on the outside of the support rod (701).

2. The auxiliary device for stacking diffusion plates according to claim 1, wherein: A second transmission shaft (204) is rotatably connected inside the conveying frame (201). A conveyor belt (205) is sleeved on the outside of the first transmission shaft (203). A conveyor belt (205) is sleeved on the outside of the second transmission shaft (204). The first transmission shaft (203) and the second transmission shaft (204) are symmetrically distributed about the central axis of the conveying frame (201).

3. The auxiliary device for stacking diffusion plates according to claim 1, characterized in that: A buffer spring (304) is fixed to the outside of the support block (302). There are two groups of buffer frames (301). The buffer frames (301) are symmetrically distributed about the central axis of the conveying frame (201). There are several groups of support blocks (302) and buffer cylinders (303). The support blocks (302) and buffer cylinders (303) are arranged in an array.

4. The auxiliary device for diffuser stacking according to claim 3, characterized in that: There are two groups of support blocks (302). The support blocks (302) are symmetrically distributed about the central axis of the buffer cylinder (303). The outer wall of the support block (302) is in contact with the inner wall of the buffer frame (301). The support block (302) is slidably connected to the buffer frame (301). The buffer spring (304) is used to squeeze the support block (302) and keep it in a tendency to move outwards.

5. The auxiliary device for stacking diffusion plates according to claim 1, characterized in that: There are three groups of support rods (701), first return springs (702), and palletizing tables (703). The support rods (701), first return springs (702), and palletizing tables (703) are arranged in an array. The inner wall of the palletizing table (703) is in contact with the outer wall of the support rod (701). The palletizing table (703) is slidably connected to the support rod (701). The first return spring (702) is used to squeeze the palletizing table (703) and keep it in a tendency to move upwards.

6. The auxiliary device for stacking diffusion plates according to claim 1, characterized in that: A height-limiting seat (801) is slidably connected inside the support base (1). A grasping rod (802) is fixed to the outside of the height-limiting seat (801). A mounting seat (803) is fixed to the outside of the height-limiting seat (801). A first limiting rod (804) is fixed to the outside of the mounting seat (803). A first limiting disc (805) is fixed to the outside of the first limiting rod (804). A second limiting disc (806) is sleeved on the outside of the first limiting rod (804). A limiting seat (807) is fixed inside the support base (1). A second limiting rod (808) is movably connected inside the limiting seat (807). A second return spring (809) is sleeved on the outside of the second limiting rod (808). A limiting block (810) is fixed to the outside of the second limiting rod (808).

7. The auxiliary device for diffuser stack as claimed in claim 6, wherein: There are two groups of the mounting seats (803) symmetrically distributed about the central axis of the height-limiting seat (801). The outer diameter of the second limiting disc (806) is larger than the outer diameter of the first limiting disc (805). The inner wall of the second limiting disc (806) is attached to the outer wall of the first limiting rod (804). The second limiting disc (806) and the first limiting rod (804) are slidably connected.

8. The auxiliary device for stacking diffusion plates according to claim 6, characterized in that: There are two groups of the limiting seats (807) symmetrically distributed about the central axis of the support base (1). The outer wall of the second limiting rod (808) is attached to the inner wall of the limiting seat (807). The second limiting rod (808) and the limiting seat (807) are slidably connected. There are two groups of the second limiting rods (808) symmetrically distributed about the central axis of the limiting seat (807).

9. The auxiliary device for stacking diffusion plates according to claim 6, wherein: The second return spring (809) is used to squeeze the second limiting rod (808) and the limiting block (810) and keep them in a tendency to move inward. One end of the limiting block (810) is provided with an inclined surface.

10. The auxiliary device for stacking diffusion plates according to claim 1, characterized in that: A robotic arm assembly (4) is fixed to the top end of the support base (1). A conveying cylinder (5) is fixed to one end of the robotic arm assembly (4). A suction cup assembly (6) is fixed to the extending end of the conveying cylinder (5). A number of suction cups are provided at the bottom end of the suction cup assembly (6).

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