Automatic stock bin

Abstract

The utility model relates to an automatic stock bin which comprises a stock bin frame, a holding and clamping mechanism, a transport cart and a positioning base, and the holding and clamping mechanism is arranged in the stock bin frame and can move horizontally and vertically. The number of the transport vehicles is two, the transport vehicles can be arranged in the stock bin frame side by side, multiple layers of trays which are arranged in a stacked mode can be placed on the transport vehicles, and limiting columns are arranged at the bottoms of the transport vehicles. The positioning base is located on the ground in the stock bin frame and corresponds to the transport vehicle, the positioning base comprises a limiting air cylinder and a limiting check block connected with the limiting air cylinder, and the limiting air cylinder pushes the limiting block to rotate so that the limiting block can be blocked on the outer side of the limiting column; and the holding and clamping mechanism can grab the material tray on any transport vehicle and transfer the material tray to the other transport vehicle. According to the automatic feeding device, automatic and continuous feeding of multiple trays can be achieved, the labor intensity of workers and the labor cost are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automatic feeding, and in particular relates to an automatic material bin. Background Art

[0002] In mechanical processing equipment, when processing multiple parts, the materials are generally loaded through a tray and grabbed by a grabbing mechanism to enter the processing equipment for processing. The existing loading mechanism can only load one tray of material at a time, and frequent manual loading is required. This loading method is not only labor-intensive, but also inefficient and has high labor costs. Utility Model Content

[0003] The utility model aims to provide an automatic material bin to solve the problem of low feeding efficiency.

[0004] An automatic silo of the utility model is realized as follows:

[0005] An automatic silo, comprising

[0006] Silo frame,

[0007] A clamping mechanism, which is arranged in the silo frame and can move horizontally and vertically;

[0008] Two transport vehicles are provided and can be placed side by side in the silo frame, and multiple layers of trays arranged in a stacked manner can be placed on the transport vehicles. A limiting column is provided at the bottom of the transport vehicles;

[0009] A positioning base, which is located on the ground inside the silo frame and is arranged corresponding to the transport vehicle, and the positioning base includes a limiting cylinder and a limiting block connected to the limiting cylinder, and the limiting cylinder pushes the limiting block to rotate so that it blocks the outer side of the limiting column;

[0010] The clamping mechanism can grab the material tray on any transport vehicle and transfer it to another transport vehicle.

[0011] Furthermore, the clamping mechanism includes a transverse plate, and two clamping plates arranged on both sides of the transverse plate and opposite to each other, and the clamping plates can follow the transverse plate or translate relative to the transverse plate.

[0012] Furthermore, positioning protrusions are provided on opposite sides of the two clamping plates, and positioning recesses cooperating with the positioning protrusions are provided on the side edges of the material tray;

[0013] A supporting block is arranged at the bottom of the positioning protrusion.

[0014] Furthermore, the transverse plate is provided with two clamping plate cylinders which are arranged horizontally and back to back, and the piston rods thereof are connected to the two clamping plates correspondingly;

[0015] The transverse shifting plate is provided with a clamping sensor located above the clamping plate cylinder and a layer number detection sensor located below the clamping plate cylinder.

[0016] Furthermore, a stroke cylinder fixed on a base plate and placed horizontally is arranged below the transverse moving plate, and the stroke cylinder is connected to the transverse moving plate.

[0017] Furthermore, a servo motor is arranged on the rear side of the base plate, a gear is installed on the output end of the servo motor, and a rack arranged vertically and meshing with the gear is arranged on the inner wall of the silo frame.

[0018] Furthermore, the positioning base includes a base with an opening facing outward, the tail of the limit cylinder and the bottom of the limit block are hinged in the base, and the end of the piston rod of the limit cylinder is hinged in the through hole in the limit block.

[0019] Furthermore, each transport vehicle is provided with two limit columns arranged in front and rear, and guide bearings are provided at the bottom of the limit columns, and both guide bearings can be moved into the base.

[0020] Furthermore, positioning holes I are respectively provided at the four corners of the vehicle plate of the transport vehicle, positioning holes II are respectively provided at the four corners of the upper surface of the material tray and are opposite to the positioning holes I, and a material tray positioning pin is provided below the positioning holes II and is located at the bottom of the material tray and can be matched in the positioning holes I or II.

[0021] Furthermore, a plurality of sets of part locating pins are provided on the upper surface of the tray.

[0022] After adopting the above technical solution, the utility model has the following beneficial effects:

[0023] (1) The utility model can realize automatic and continuous loading of multiple trays through the arrangement of a clamping mechanism, a transport vehicle and a multi-layer tray, thereby reducing the labor intensity and labor costs of workers and improving production efficiency;

[0024] (2) The utility model can fix the transport vehicle in the silo by setting a positioning base, thereby ensuring stability during loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Figure 1 This is a structural diagram of an automatic silo in a preferred embodiment of the utility model;

[0027] Figure 2 It is a structural diagram of an automatic silo (without a transport vehicle) of a preferred embodiment of the utility model;

[0028] Figure 3 This is a structural diagram of the clamping mechanism and driving mechanism of the automatic silo in the preferred embodiment of the utility model;

[0029] Figure 4 It is a structural diagram of the driving mechanism of the automatic silo of the preferred embodiment of the utility model;

[0030] Figure 5 This is a structural diagram of the positioning base of the automatic silo in the preferred embodiment of the utility model;

[0031] Figure 6 It is a structural diagram of an automatic silo transport vehicle (with multi-layer material trays) of a preferred embodiment of the utility model;

[0032] Figure 7 This is a structural diagram of a transport vehicle for an automatic silo according to a preferred embodiment of the utility model;

[0033] Figure 8 This is a structural diagram of a material tray of an automatic material bin in a preferred embodiment of the utility model;

[0034] Fig. 9 This is a diagram of the use status of the automatic silo of the preferred embodiment of the utility model;

[0035] In the figure: silo frame 1, column 1-1, clamping mechanism 2, transverse plate 2-1, clamping plate 2-2, clamping plate seat 2-3, positioning protrusion 2-4, support block 2-5, clamping plate cylinder 2-6, layer detection sensor 2-7, cover 2-8, clamping sensor 2-9, magnetic switch 2-10, transport vehicle 3, limit column 3-1, vehicle body 3-2, vehicle plate 3-3, wheel 3-4, guide bearing 3-5, positioning hole I 3-6, positioning base 4, limit cylinder 4-1, limit block 4-2, Base 4-3, through hole 4-4, material tray 5, positioning notch 5-1, positioning hole II 5-2, material tray positioning pin 5-3, part positioning pin 5-4, driving mechanism 6, base plate 6-1, stroke cylinder 6-2, connecting plate 6-3, horizontal guide rail 6-4, travel switch 6-5, servo motor 6-6, gear 6-7, rack 6-8, vertical guide rail 6-9, upper limit block 6-10, lower limit block 6-11, limit sensor 6-12, electric control cabinet 7, feeding robot 8, machining center 9. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0038] like Figure 1-9 As shown, an automatic silo includes a silo frame 1, a clamping mechanism 2, a transport vehicle 3 and a positioning base 4. The clamping mechanism 2 is arranged in the silo frame 1 and can move horizontally and vertically; two transport vehicles 3 are provided and can be placed side by side in the silo frame 1, and multiple layers of material trays 5 arranged in a stacked manner can be placed on the transport vehicles 3, and a limiting column 3-1 is arranged at the bottom of the transport vehicle 3; the positioning base 4 is located on the ground inside the silo frame 1 and is arranged corresponding to the transport vehicle 3, the positioning base 4 includes a limiting cylinder 4-1, and a limiting stopper 4-2 connected to the limiting cylinder 4-1, and the limiting cylinder 4-1 pushes the limiting stopper 4-2 to rotate so that it is blocked on the outside of the limiting column 3-1; the clamping mechanism 2 can grab the material tray 5 on any transport vehicle 3 and transfer it to another transport vehicle 3.

[0039] One of the two transport vehicles 3 is used to place the parts to be processed, and the other is used to place the processed parts. In this embodiment, the transport vehicle 3 on the left is used to place the parts to be processed, and the transport vehicle 3 on the right is used to place the processed parts, that is, the clamping mechanism 2 will clamp the tray 5 with the parts to be processed from the left transport vehicle 3 and transfer it to the loading position. After the parts on the tray 5 are processed, the clamping mechanism 2 will transfer the tray 5 to the right transport vehicle 3.

[0040] The silo frame 1 is welded from square tubes and cover plates.

[0041] like Figure 2-3 As shown, the clamping mechanism 2 is used to clamp the material tray 5 and drive the material tray 5 to rise and fall or translate. In order to realize the lateral movement of the material tray 5, the clamping mechanism 2 includes a lateral movement plate 2-1, and two clamping plates 2-2 arranged on both sides of the lateral movement plate 2-1 and opposite to each other. The clamping plates 2-2 can follow the lateral movement plate 2-1 or translate relative to the lateral movement plate 2-1.

[0042] When the clamping plate 2-2 moves with the transverse plate 2-1, it is used to drive the material tray 5 to move horizontally; when the clamping plate 2-2 moves relative to the transverse plate 2-1, the clamping plate 2-2 is used to complete the clamping or releasing operation of the material tray 5.

[0043] Specifically, when the two clamping plates 2 - 2 both move toward the transverse plate 2 - 1 , they are used to clamp the material tray 5 . Conversely, that is, when the two clamping plates 2 - 2 both move away from the transverse plate 2 - 1 , they are used to loosen the material tray 5 .

[0044] Preferably, in order to ensure the stability of the splint 2-2, its inner end is fixed on the splint seat 2-3.

[0045] In order to ensure the fit between the clamping plates 2-2 and the material tray 5, positioning protrusions 2-4 are provided on opposite sides of the two clamping plates 2-2, and positioning recesses 5-1 that fit with the positioning protrusions 2-4 are provided on the side edges of the material tray 5.

[0046] In this embodiment, two positioning protrusions 2 - 4 are provided on each clamping plate 2 - 2 , and correspondingly, two positioning recesses 5 - 1 are also provided on the same side edge of the material tray 5 .

[0047] In order to ensure the stability of the material tray 5 during the process of clamping the material tray 5, a support block 2-5 is provided at the bottom of the positioning protrusion 2-4.

[0048] In order to realize the two clamping plates 2-2 moving toward each other (clamping the material tray 5) or moving away from each other (releasing the material tray 5), two clamping plate cylinders 2-6 arranged horizontally and away from each other are provided on the transverse plate 2-1, and their piston rods are connected to the two clamping plates 2-2 accordingly.

[0049] Preferably, a magnetic switch 2-10 is provided on the clamp cylinder 2-6, which cooperates with the magnet inside the clamp cylinder 2-6 to detect the position of the magnetic core of the clamp cylinder 2-6, thereby determining whether the piston rod of the clamp cylinder 2-6 is in an extended state or a retracted state, thereby determining whether the two clamps 2-2 are clamping the material tray 5 or releasing the material tray 5.

[0050] When the clamping plate 2-2 clamps or places the tray 5, in order to be able to detect the position of the corresponding tray 5 in real time, a clamping sensor 2-9 located above the clamping plate cylinder 2-6 and a layer detection sensor 2-7 located below the clamping plate cylinder 2-6 are installed on the transverse plate 2-1.

[0051] Specifically, two clamping sensors 2-9 and two layer detection sensors 2-7 are respectively provided and are arranged side by side. The distance between the clamping sensor 2-9 and the layer detection sensor 2-7 is equal to the distance between two layers of material trays 5.

[0052] When clamping the material tray 5, the transverse plate 2-1 drives the clamping plate 2-2 to move from top to bottom. When the clamping sensor 2-9 detects the material tray 5 for the first time, the material tray 5 is the material tray 5 located on the top layer, and at this time the layer detection sensor 2-7 will detect the second material tray 5 from the top. At this time, the position of the surface clamping plate 2-2 corresponds accurately to the position of the material tray 5 on the top layer, and the clamping plate cylinder 2-6 can be controlled to move, driving the two clamping plates 2-2 to move toward each other, and clamping the material tray 5 on the top layer.

[0053] When there is only one layer left in the tray 5, when clamping the tray 5, the clamping sensor 2-9 detects the tray 5, and the two layer detection sensors 2-7 correspondingly detect the vehicle plate 3-3 of the transport vehicle 3, which indicates that the clamping plate 2-2 is opposite to the tray 5, and the tray 5 can be clamped.

[0054] When placing the material tray 5, the transverse plate 2-1 drives the clamping plate 2-2 and the material tray 5 to move downward until the two layer detection sensors 2-7 detect the material tray 5 on the uppermost layer of the transport vehicle 3. At this time, it indicates that the material tray 5 to be placed has been placed in place, and the clamping plate cylinder 2-6 can be controlled to move the clamping plate 2-2 to release the material tray 5.

[0055] Preferably, the clamping sensor 2-9 and the layer number detection sensor 2-7 can be photoelectric sensors.

[0056] Preferably, a cover shell 2-8 covering the outside of the clamping plate cylinder 2-6 is provided on the front side of the transverse plate 2-1, and a hole opposite to the layer number detection sensor 2-7 and the clamping sensor 2-9 is opened on the cover shell 2-8.

[0057] In order to drive the transverse plate 2-1 to translate, a stroke cylinder 6-2 fixed on a base plate 6-1 and placed horizontally is provided below the transverse plate 2-1, and the stroke cylinder 6-2 is connected to the transverse plate 2-1.

[0058] The driving mechanism 6 for driving the clamping mechanism 2 to move in translation and vertically lift comprises a base plate 6-1, on which the transverse plate 2-1 can move in translation, and a stroke cylinder 6-2 provides power for its translation.

[0059] The stroke cylinder 6-2 can be a rodless cylinder, and its slider is connected to the transverse plate 2-1 through a connecting plate 6-3. The movement of the slider drives the horizontal movement of the transverse plate 2-1.

[0060] Preferably, in order to guide the horizontal movement of the transverse plate 2-1, a horizontal guide rail 6-4 is provided on the base plate 6-1, and the transverse plate 2-1 and the clamping plate seat 2-3 are both slidably fitted on the horizontal guide rail 6-4.

[0061] Preferably, in order to limit the lateral movement of the clamping mechanism 2, a travel switch 6-5 located between and opposite to the two horizontal guide rails 6-4 is provided on the base plate 6-1.

[0062] The travel switch 6-5 can cooperate with the slider on the travel cylinder 6-2 to limit the position of the horizontal movement of the transverse plate 2-1 driven by the travel cylinder 6-2.

[0063] like Figure 3-4 As shown, in order to realize the lifting and lowering of the clamping mechanism 2, a servo motor 6-6 is arranged on the rear side of the base plate 6-1, a gear 6-7 is installed on the output end of the servo motor 6-6, and a rack 6-8 arranged vertically and meshing with the gear 6-7 is arranged on the inner wall of the silo frame 1.

[0064] The servo motor 6 - 6 of the driving mechanism 6 provides power for the vertical lifting of the clamping mechanism 2 .

[0065] A column 1-1 is provided on the inner wall of the rear side of the silo frame 1, a rack 6-8 is located on one side of the column 1-1, a servo motor 6-6 is located in the space on the right side of the column 1-1, and its gear 6-7 is convenient for matching with the rack 6-8, and an electric control cabinet 7 is provided on the left side of the column 1-1.

[0066] A vertical guide rail 6-9 is provided on the front wall of the column 1-1, and the base plate 6-1 is slidably fitted on the vertical guide rail 6-9, thereby guiding the lifting and lowering of the base plate 6-1.

[0067] Preferably, an upper limit block 6-10 and a lower limit block 6-11 located on the inner wall of the rear side of the silo frame 1 are provided between the two vertical guide rails 6-9, and the two limit the lifting and lowering of the base plate 6-1 respectively.

[0068] Preferably, a limit sensor 6-12 is installed on the substrate 6-1, which can correspond to the upper limit block 6-10 or the lower limit block 6-11.

[0069] Specifically, when the substrate 6-1 rises to the point where the limit sensor 6-12 is opposite to the upper limit block 6-10, the substrate 6-1 reaches its highest position and stops rising; when the substrate 6-1 descends to the point where the limit sensor 6-12 is opposite to the lower limit block 6-11, the substrate 6-1 reaches its lowest position and stops descending.

[0070] like Figure 5 As shown, in order to fix the transport vehicle 3 in the silo frame 1, the positioning base 4 includes a base 4-3 with an opening facing outward, the tail of the limit cylinder 4-1 and the bottom of the limit block 4-2 are hinged in the base 4-3, and the end of the piston rod of the limit cylinder 4-1 is hinged in the through hole 4-4 in the limit block 4-2.

[0071] In order to ensure the stability of the transport vehicle when it is located in the silo frame 1, each transport vehicle 3 is provided with two limit columns 3-1 arranged in front and rear, and a guide bearing 3-5 is provided at the bottom of the limit 3-1. Both guide bearings 3-5 can be moved into the base 4-3.

[0072] Specifically, the transport vehicle 3 includes a vehicle body 3-2, a vehicle plate 3-3 arranged on the vehicle body 3-2, and wheels 3-4 located at the bottom of the vehicle body 3-2. The limiting column 3-1 is installed on the vehicle plate 3-3, and its lower end passes through the vehicle plate 3-3 and extends to the bottom of the vehicle body 3-2.

[0073] The piston rod of the limit cylinder 4-1 is set inward. When the limit column 3-1 located on the front side of the transport vehicle 3 enters the base 4-3 and passes through the limit block 4-2, the piston rod of the limit cylinder 4-1 extends out, pushing the limit block 4-2 to rotate, so that the upper end of the limit block 4-2 rotates upward and blocks the outer side of the corresponding guide bearing 3-5. At this time, the limit column 3-1 and the guide bearing 3-5 located on the rear side also enter the base 4-3. At this time, the transport vehicle 3 can be fixed in the silo frame 1 to prevent it from moving accordingly; when it is necessary to move out of the silo frame 1, the piston rod of the limit cylinder 4-1 retracts, pulling the limit block 4-2 to rotate, so that the upper end of the limit block 4-2 tilts outward, thereby avoiding the guide bearing 3-5, and the transport vehicle 3 can be pulled out.

[0074] The setting of the guide bearing 3-5 can facilitate its entry into the base 4-3, with small resistance in movement, and can also cooperate well with the two side walls of the base 4-3 to avoid left and right shaking of 3 and ensure the stability of the transport vehicle 3.

[0075] Preferably, the outer end of the base 4-3 is an outwardly opened structure, which facilitates the guide bearing 3-5 of the transport vehicle 3 to enter the base 4-3.

[0076] like Figure 6-8 As shown, in order to be able to stack the material trays 5 on the transport vehicle 3, positioning holes Ⅰ3-6 are respectively provided at the four corners of the vehicle plate 3-3 of the transport vehicle 3, positioning holes Ⅱ5-2 opposite to the positioning holes Ⅰ3-6 are provided at the four corners of the upper surface of the material tray 5, and a material tray positioning pin 5-3 is provided below the positioning hole Ⅱ5-2, which is located at the bottom of the material tray 5 and can be matched in the positioning hole Ⅰ3-6 or the positioning hole Ⅱ5-2.

[0077] The tray locating pin 5-3 at the bottom of the lowest tray 5 fits in the locating hole Ⅰ3-6, while the tray locating pins 5-3 of the remaining trays 5 correspondingly fit in the locating holes Ⅱ5-2 on the tray 5 below them, thereby realizing the stacking of the trays 5 on the transport vehicle 3 and ensuring the stability of the trays 5.

[0078] In order to facilitate the placement of parts, a plurality of sets of part positioning pins 5 - 4 are provided on the upper surface of the tray 5 .

[0079] Each set of part locating pins 5-4 is used to locate a part, thereby facilitating the placement of the part.

[0080] like Fig. 9 As shown, when processing parts, first select the corresponding material tray 5 according to the parts, insert the parts positioning pins 5-4 on the material tray 5, and place the parts to be processed in the placement positions formed by each group of parts positioning pins 5-4, and then stack the material trays 5 with the parts to be processed on the transport vehicle 3. Push the transport vehicle 3 with the parts to be processed into the left side of the silo frame 1 and lock it with the limit stopper 4-2, and then push the controlled transport vehicle 3 into the right side of the silo frame 1 and lock it with the limit stopper 4-2.

[0081] At this time, automatic production can be carried out. First, the clamping mechanism 2 is translated to the top of the left transport vehicle 3 and then moved down. When the two clamps 2-2 move to both sides of the topmost tray 5, the two clamps 2-2 move toward each other to clamp the topmost tray 5. Then the clamping mechanism 2 brings the tray 5 up to the highest position, i.e., the loading position. The loading robot 8 grabs the parts to be processed on the tray 5 one by one and puts them into the machining center 9 for processing. After the processing is completed, it is placed on the corresponding position of the tray 5 until all the parts on the tray 5 are processed. At this time, the clamping mechanism 2 drives the tray 5 to translate to the right to the top of the right transport vehicle 3, and then the clamping mechanism 2 descends. After it descends to the right position, the two clamps 2-2 move back to each other, and the tray 5 with the completed parts can be placed on the right transport vehicle 3. Then the clamping mechanism 2 moves again to the top of the left transport vehicle 3 and then moves down to clamp the material tray 5 at the top layer so as to transfer it to the loading position, and then process the parts on the material tray 5. This is done until all the parts on the left transport vehicle 3 are processed, and the material trays 5 are stacked and placed on the right transport vehicle 3, and a complete processing process is completed. After the subsequent vehicle change, the left transport vehicle 3 is moved to the right position, and another transport vehicle 3 full of parts to be processed is pushed into the left position, and processing can continue. The entire processing process has good continuity and high automation, which effectively improves the processing efficiency.

[0082] The utility model adopts a single pair of clamping plates 2-2, and completes the cycle of parts processing through the cooperation of the servo motor 6-6 and the stroke cylinder 6-2. Compared with the double-station cycle form, it saves the use of the slide rail module and also saves the space occupied by the upper transport slide. It has a higher load and lower cost, greatly improves the life of the equipment, and the processing time is much longer than the car changing action, and there will be no waiting for material changing, and the production efficiency is high.

[0083] The utility model solves the redundant loss caused by frequent manual taking and placing of parts, and is used in combination with robots and other automated equipment to eliminate manual labor, shorten the production cycle, and improve production efficiency and stability.

[0084] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An automatic silo, characterized in that: include Silo frame (1), A clamping mechanism (2) is arranged in the silo frame (1) and is capable of moving horizontally and vertically; Two transport vehicles (3) are provided and can be placed side by side in the silo frame (1); multiple layers of material trays (5) arranged in a stacked manner can be placed on the transport vehicles (3); and a limiting column (3-1) is provided at the bottom of the transport vehicles (3); A positioning base (4) is located on the ground inside the silo frame (1) and is arranged corresponding to the transport vehicle (3), the positioning base (4) comprising a limiting cylinder (4-1) and a limiting block (4-2) connected to the limiting cylinder (4-1), the limiting cylinder (4-1) pushing the limiting block (4-2) to rotate so that the limiting block (4-2) is blocked on the outside of the limiting column (3-1); The clamping mechanism (2) is capable of grabbing a material tray (5) on any transport vehicle (3) and transferring it to another transport vehicle (3).

2. The automatic silo according to claim 1, characterized in that: The clamping mechanism (2) comprises a transverse plate (2-1) and two clamping plates (2-2) arranged on both sides of the transverse plate (2-1) and arranged opposite to each other, wherein the clamping plates (2-2) can follow the transverse plate (2-1) or translate relative to the transverse plate (2-1).

3. The automatic silo according to claim 2, characterized in that: Positioning protrusions (2-4) are arranged on opposite sides of the two clamping plates (2-2), and positioning recesses (5-1) cooperating with the positioning protrusions (2-4) are arranged on the side edges of the material tray (5); A supporting block (2-5) is provided at the bottom of the positioning protrusion (2-4).

4. The automatic silo according to claim 2, characterized in that: The transverse moving plate (2-1) is provided with two clamping plate cylinders (2-6) which are arranged horizontally and back to back, and the piston rods of the two clamping plates (2-2) are connected correspondingly; The transverse shifting plate (2-1) is provided with a clamping sensor (2-9) located above the clamping plate cylinder (2-6) and a layer number detection sensor (2-7) located below the clamping plate cylinder (2-6).

5. The automatic silo according to claim 2, characterized in that: A stroke cylinder (6-2) fixed on a base plate (6-1) and placed horizontally is arranged below the transverse moving plate (2-1); the stroke cylinder (6-2) is connected to the transverse moving plate (2-1).

6. The automatic silo according to claim 5, characterized in that: A servo motor (6-6) is arranged on the rear side of the base plate (6-1), a gear (6-7) is installed on the output end of the servo motor (6-6), and a rack (6-8) arranged vertically and meshing with the gear (6-7) is arranged on the inner wall of the silo frame (1).

7. The automatic silo according to claim 1, characterized in that: The positioning base (4) comprises a base (4-3) with an opening facing outwards, the tail of the limit cylinder (4-1) and the bottom of the limit block (4-2) are both hinged in the base (4-3), and the end of the piston rod of the limit cylinder (4-1) is hinged in a through hole (4-4) in the limit block (4-2).

8. The automatic silo according to claim 7, characterized in that: Each transport vehicle (3) is provided with two limiting columns (3-1) arranged in front and rear, and a guide bearing (3-5) is provided at the bottom of the limiting column (3-1), and the two guide bearings (3-5) can be moved into the base (4-3).

9. The automatic silo according to claim 1, characterized in that: The transport vehicle (3) is provided with positioning holes I (3-6) at four corners of the vehicle plate, and the upper surface of the material tray (5) is provided with positioning holes II (5-2) opposite to the positioning holes I (3-6) at four corners, and a material tray positioning pin (5-3) is provided below the positioning hole II (5-2) and is located at the bottom of the material tray (5) and can be matched in the positioning hole I (3-6) or the positioning hole II (5-2).

10. The automatic silo according to claim 1, characterized in that: The upper surface of the material tray (5) is provided with a plurality of sets of part positioning pins (5-4).

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