An automatic glue - applying bonding machine for multi - layer substrates of different materials and its control method

Abstract

The present invention discloses an adhesive bonding machine, aiming to provide an adhesive bonding machine capable of automatically applying glue to bond multiple different base materials. The key technical points of its technical solution include a main frame and a sub-frame. An operation panel, a material pressing mechanism, a bearing plate, a trimming mechanism and a glue coating mechanism are arranged on the main frame; a material laying mechanism, a positioning mechanism and a feeding mechanism are arranged on the sub-frame. The operation panel is used to output processing information. The material pressing mechanism is provided with a vacuum suction cup and an oil cylinder. The material pressing mechanism is used to adsorb and press the base material. The bearing plate is used to place the base material and bear the material pressing mechanism. The trimming mechanism is used to trim the formed composite board. The glue coating mechanism is used to apply glue to the surfaces of each base material. The material laying mechanism is used to fix the base material on the sub-frame. The positioning mechanism includes a clamping mechanism and a tensioning mechanism. The clamping mechanism is used to fix the base material. The tensioning mechanism is used to stretch the base material. The feeding mechanism is used to convey the base material on the material laying mechanism above the bearing plate. The present invention is used for automatically applying glue to bond multiple different base materials.

Description

Technical Field

[0001] The present invention relates to a mechanical manufacturing device, and more specifically, to a bonding machine capable of automatically applying glue to multi-layer substrates of different materials. Background Art

[0002] With the development of industrial technology, modern industrial technology has become increasingly perfect. Especially in the field of automotive material manufacturing, due to the large demand for automobiles, the sheets used for manufacturing automobiles need to be mass-produced engineeringly. Moreover, when assembling the sheets, an adhesive needs to be applied to the sheets. The adhesive is prone to volatilization. If the staff is in the polluted air for a long time, it will cause damage to the lungs and skin of the staff. The upper and lower surfaces of the composite board are aluminum plates, and different materials can be filled in the middle for functions such as fire prevention and high temperature resistance. The existing composite boards can be used on the carriage or the vehicle frame. In current automobile manufacturing production, multi-layer composite boards, even four-layer or five-layer composite boards, are required. However, in current automobile manufacturing, the bonding of the boards is generally processed by a manipulator and manual semi-automation. This bonding method has low efficiency and causes damage to the personnel, and it is difficult to achieve the goal of mass and rapid production. Therefore, a suitable processing machine is needed to manufacture such multi-layer composite boards. Summary of the Invention

[0003] Aiming at the deficiencies existing in the prior art, the purpose of the present invention is to provide a bonding machine capable of automatically applying glue and bonding multi-layer different substrates.

[0004] To achieve the above purpose, the present invention provides the following technical solution: An automatic glue-applying bonding machine for multi-layer substrates of different materials, including a main frame and a sub-frame. The main frame is detachably connected to the sub-frame. An operation panel, a material pressing mechanism, a bearing plate, a trimming mechanism, and a glue-applying mechanism are arranged on the main frame; a material laying mechanism, a positioning mechanism, and a feeding mechanism are arranged on the sub-frame. The glue-applying mechanism is arranged on the bearing plate. The bearing plate is set as the product processing area and is used for bearing the material pressing mechanism. The material pressing mechanism is arranged at the top end of the main frame. The feeding mechanism is arranged on the sub-frame and penetrates and is inserted into the interior of the main frame. The positioning mechanism and the material laying mechanism are arranged on the feeding mechanism.

[0005] The present invention is further set as: The material pressing mechanism includes a cylinder, a material supporting plate, a lifting guiding mechanism, and a vacuum adsorption module. The material supporting plate is arranged at the bottom end of the cylinder. The cylinder is arranged on the top cross beam of the main frame. The vacuum adsorption module is arranged on the surface of the material supporting plate. The lifting guiding mechanism is 4 cylinders that fit the cross beam of the main frame. The bottom of the lifting guiding mechanism is fixed on the material supporting plate. The material pressing mechanism is used for adsorbing and pressing the substrate.

[0006] The present invention is further set as: The bearing plate is covered and arranged inside the middle layer of the main frame. Through holes and fixing blocks are arranged on the surface of the bearing plate. The fixing blocks are used for fixing the substrate. The glue-applying mechanism is fixed on the bearing plate by screws.

[0007] The present invention is further configured such that: the gluing mechanism includes a glue gun, a servo motor, a transverse chute, and a longitudinal chute. The glue gun is fixed on the longitudinal chute. The transverse chute and the longitudinal chute are arranged on the bearing plate. The longitudinal chute of the glue gun is connected to the servo motor through an electric wire.

[0008] The present invention is further configured such that: the edge trimming mechanism includes an edge trimming oil cylinder and an edge trimming die. The edge trimming oil cylinder is arranged on the main frame through a connecting column, and the edge trimming die is arranged below the edge trimming oil cylinder.

[0009] The present invention is further configured such that: the feeding mechanism includes a slide rail, a carriage, a translation motor, a transmission belt, and a transmission rod. The slide rail is fixed on the main and auxiliary frames by screws and is arranged below the through hole of the bearing device. The translation motor is fixed on the cross beam of the auxiliary frame by screws. The transmission rod is arranged between the slide rails and at the tail of the slide rails. The power end of the translation motor is rotationally connected to the transmission rod through the transmission belt.

[0010] The present invention is further configured such that: the laying mechanism includes a laying platform and a clamping mechanism. The clamping mechanism includes a clamping base, clamping plates, and a telescopic rod. The clamping base is fixed on the side wall of the carriage by screws. The telescopic rod is arranged inside the clamping base, and the clamping plates are arranged at the top of the telescopic rod.

[0011] The present invention is further configured such that: the positioning mechanism includes a plurality of tensioning mechanisms. The tensioning mechanism includes a tensioning base, a tensioning block, and a telescopic rod. The tensioning base is fixed on the carriage by screws, and the tensioning base is connected to the tensioning block through the telescopic rod.

[0012] The present invention is further configured such that: the upper material tray surface is further provided with an upper substrate positioning structure, a photoelectric sensor, and a safety plug mechanism. The photoelectric sensor is used to detect and feedback the information of the pressing mechanism descending.

[0013] The present invention is further configured such that: a control method for an automatic gluing multi-layer different material substrate bonding machine includes the following steps.

[0014] S1. Pre-processing stage: Place the bottom plate on the bearing plate and limit and fix the bottom plate through the fixing blocks on the bearing plate surface; place the top plate on the material tray and fix it through the vacuum adsorption module on the material tray surface.

[0015] S2. Gluing stage: The gluing mechanism applies glue to the bottom plate along a spiral track. When the gluing is completed, the gluing mechanism resets.

[0016] S3. Bonding stage: The material tray descends to make the top plate and the bottom plate bond and fit together to form a substrate.

[0017] S4. Secondary gluing stage: The gluing mechanism applies glue to the substrate along a spiral track. When the gluing is completed, the gluing mechanism resets.

[0018] S5. In the feeding stage, the cover plate is placed on the feeding platform. The clamping mechanism fixes the base material, the tensioning mechanism relaxes the base material, and the feeding mechanism transports the base material above the substrate.

[0019] S6. In the secondary bonding stage, the material supporting tray descends and presses down the cover plate to bond and adhere it to the substrate, forming a composite board.

[0020] S7. In the trimming stage, the trimming mechanism repairs the excess corner parts of the composite board.

[0021] S8. In the reset stage, the material supporting tray rises and resets, and the composite board is taken out to complete one processing cycle.

[0022] By adopting the above technical solutions, the bonding process of the base material can be completed inside the main frame, and the transportation of the base material can be completed inside the auxiliary frame. The glue coating mechanism inside the main frame can automatically apply glue within the preset glue coating range, realizing the automation of glue coating on the base material, improving production efficiency. The transverse chute and longitudinal chute set on the glue coating mechanism can achieve spiral radiation glue coating, which can more evenly cover the surface of the base material, thereby achieving a better bonding effect.

[0023] The number of vacuum adsorption modules set on the material supporting tray is large and they are distributed at various positions on its surface. The vacuum adsorption modules can adsorb a whole base material or can simultaneously adsorb multiple base materials for pressing. When adsorbing multiple base materials for processing, since the operation of the vacuum adsorption modules does not interfere with each other, the processing efficiency of the base material is greatly improved.

[0024] The feeding mechanism set inside the auxiliary frame can ensure the multi-layer automatic processing of the base material. After processing two substrates inside the main frame, if further composite processing is required, the base material can be placed on the auxiliary frame, and through the feeding mechanism inside the auxiliary frame, the base material is transported into the main frame and continues to be pressed and processed to form a multi-layer composite board. Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of an automatic glue coating multi-layer bonding machine for substrates of different materials;

[0026] Figure 2 It is a schematic internal structure diagram of an automatic glue coating multi-layer bonding machine for substrates of different materials;

[0027] Figure 3 It is a schematic structural diagram of the feeding mechanism;

[0028] Figure 4 It is a schematic structural diagram of the glue coating mechanism;

[0029] Figure 5 It is a schematic structural diagram of the trimming mechanism;

[0030] Figure 6A control method for an automatic glue - applying bonding machine for multi - layer substrates of different materials;

[0031] The reference numerals in the figure are: 1, main frame; 2, operation panel; 3, material pressing mechanism; 4, carrier plate; 5, edge - cutting mechanism; 6, glue - applying mechanism; 7, auxiliary frame; 8, material laying mechanism; 9, positioning mechanism; 10, feeding mechanism; 11, outer sheet metal; 31, cylinder; 32, material supporting plate; 33, lifting guiding mechanism; 34, vacuum adsorption module; 35, upper substrate positioning structure; 36, photoelectric inductor; 37, safety bolt mechanism; 51, edge - cutting oil cylinder; 52, edge - cutting die; 61, glue gun; 62, servo motor; 63, horizontal sliding groove; 64, vertical sliding groove; 81, slide rail; 82, carriage; 83, translation motor; 84, transmission belt; 85, transmission rod; 86, clamping plate; 87, telescopic rod; 88, clamping base; 91, tensioning block; 92, tensioning base. Specific embodiments

[0032] Refer to Figures 1 to 4 To further illustrate the automatic glue - applying bonding machine for multi - layer substrates of different materials of the present invention.

[0033] For ease of description, spatial relative terms such as "upper", "lower", "left", "right" etc. are used in the embodiments to describe the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations during the use or operation of the device. For example, if the device in the figure is inverted, the element described as being "under" another element or feature will be positioned "above" the other element or feature. Therefore, the exemplary term "lower" can include both the upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0034] Moreover, relational terms such as "first" and "second" are only used to distinguish one component with the same name from another, and do not necessarily require or imply any such actual relationship or order between these components.

[0035] Embodiment 1:

[0036] The following combines Figures 1 to 5A detailed description is given of an automatic glue - coating bonding machine for multi - layer substrates of different materials according to the present invention. An automatic glue - coating bonding machine for multi - layer substrates of different materials includes a main frame 1 and a sub - frame 7. The main frame 1 is detachably connected to the sub - frame 7. The main frame 1 includes a base and outer sheet metals 11 arranged at the four corners of the base. There is a sheet metal plate between the outer sheet metals 11. The sheet metal plate is used to enclose the internal space of the main frame 1, which can ensure that the smell of the glue - coating does not pollute the environment and can also protect the equipment from dust and moisture. An operation panel 2 is arranged on the sheet metal plate on the front of the main frame 1. A transparent protection plate is arranged at the back of the main frame 1 for facilitating the staff to observe the equipment during operation. The sub - frame 7 is slightly lower in height than the main frame 1. The height of the sub - frame 7 is the same as the height of the loading mechanism arranged inside the main frame 1. The sub - frame 7 is fixedly connected to the main frame 1 by screws. The outer sheet metals 11 are also arranged on the periphery of the sub - frame 7. The sub - frame 7 is used to convey the substrate plates to be bonded to the loading mechanism inside the main frame 1. Fixed feet are arranged at the bottoms of both the main frame 1 and the sub - frame 7.

[0037] A pressing mechanism 3, a loading tray 4, a trimming mechanism 5 and a glue - coating mechanism 6 are arranged inside the main frame 1. The pressing mechanism 3 is fixed above the cross - beam at the top of the main frame 1 by screws. The pressing mechanism 3 includes a cylinder 31, a material - supporting tray 32, a lifting guiding mechanism 33 and a vacuum adsorption module 34. The cylinder 31 penetrates through the top of the main frame 1. The bottom of the cylinder 31 is fixed to the material - supporting tray 32 by screws. The lifting guiding mechanism 33 and the vacuum adsorption module 34 are fixed to the material - supporting tray 32 by screws. The lifting guiding mechanism 33 penetrates through the top of the main frame 1 and is close to the cross - beam at the top of the main frame 1, which is used to assist in protecting the vertical lifting of the material - supporting tray 32. The number of the vacuum adsorption modules 34 is several, which can adsorb multiple plates simultaneously. When the bonding machine is working, the cylinder 31 can lift vertically to drive the material - supporting tray 32 to complete the processing task. An upper substrate positioning structure 35, a safety bolt mechanism 37 and a photoelectric sensor 36 are also arranged on the material - supporting tray 32. The upper substrate positioning structure 35 controls the adsorption position of the substrate through its fixed position. A hook is arranged at the bottom end of the safety bolt mechanism 37. When the material - supporting tray 32 rises to the top, the hook can pass through the limit hole on the material - supporting tray 32 to hook the material - supporting tray 32, ensuring that the material - supporting tray 32 will not slide down. The photoelectric sensor 36 can detect the real - time height of the lifting of the material - supporting tray 32 to ensure that the cylinder 31 will not lift excessively, thus protecting the safety of the equipment. A trimming mechanism 5 is also arranged on the main frame 1. The trimming mechanism 5 is used to trim the excess materials around the composite board. The trimming mechanism 5 is provided with a trimming oil cylinder 51 as an independent power source of the trimming mechanism 5. The trimming mechanism 5 rises and falls together with the material - supporting tray 32 and starts to work when it descends to the limit to process the composite board.

[0038] A bearing plate 4 is provided on the main frame 1. The bearing plate 4 is arranged in the middle inside the main frame 1 and is fixed to the main frame 1 by screws. The bearing plate 4 is a steel plate with two long strip-shaped through holes. The through holes are for the feeding mechanism 10 to slide into the main frame 1. A number of limiting blocks are provided on the bearing plate 4 for fixing the base material to be processed. A glue coating mechanism 6 is also provided on the bearing plate 4. The glue coating mechanism 6 includes a glue coating base, a glue gun 61, a servo motor 62, a transverse chute 63 and a longitudinal chute 64. The glue coating base is fixed to the bearing plate 4 by screws. The transverse chute 63 is fixed to the glue coating base and the cross beam of the main frame 1 opposite to the glue coating base by screws. Both ends of the longitudinal chute 64 are fixedly connected to the transverse chute 63. The longitudinal chute 64 can slide longitudinally back and forth on the transverse chute 63. The glue gun 61 is arranged on the longitudinal chute 64 and can slide horizontally back and forth on the longitudinal chute 64. The longitudinal chute 64 is connected to the servo motor 62 through an electric wire belt. The glue coating method of the glue coating mechanism 6 is a spiral progressive type, that is, first apply glue in a spiral shape from the edge to the center to ensure that the glue evenly covers the surface of the base material. The glue gun 61 and the longitudinal chute 64 work and move in their respective directions at the same time to maximize the efficiency. An internal heating device is provided on the glue gun 61. When the equipment is working, the glue inside it is preheated to increase the adhesive force of the glue. The glue is hot melt glue.

[0039] A feeding mechanism 10, a material laying mechanism 8 and a positioning mechanism 9 are arranged on the auxiliary frame 7. The feeding mechanism 10 includes a slide rail 81, a carriage 82, a translation motor 83, a transmission belt 84 and a transmission rod 85. The translation motor 83 is fixed on the inner cross beam of the auxiliary frame 7 by screws. Two slide rails 81 are arranged and symmetrically arranged inside the frame. One end of the slide rail 81 is fixed on the right side of the auxiliary frame 7 by screws, and the other end extends into the main frame 1 to be flush with the bearing plate 4. One end of the slide rail 81 arranged on the right side of the auxiliary frame 7 is connected by a transmission rod 85. The transmission rod 85 is in transmission connection with the output end of the translation motor 83 through the transmission belt 84. When the feeding mechanism 10 works, the output end of the translation motor 83 rotates, drives the transmission belt 84 to make the transmission rod 85 rotate, and the transmission rod 85 drives the slide rail 81 to rotate, so as to convey the base material to be processed above the bearing plate 4. A carriage 82 is arranged on a part of the slide rail 81 of the auxiliary frame 7. The carriage 82 is fixed on the auxiliary frame 7 by screws. A clamping mechanism and a tensioning mechanism are arranged on the carriage 82. The clamping mechanism and the tensioning mechanism are fixed on the carriage 82 by screws. The clamping mechanism includes a clamping base 88, a clamping plate 86 and a telescopic rod 87. The clamping base 88 is fixed on the side wall of the carriage 82 by screws. The telescopic rod 87 is arranged inside the clamping base 88. The clamping plate 86 is arranged at the top of the telescopic rod 87. When the base material to be processed is placed on the material laying mechanism 8, the clamping mechanism controls the telescopic rod 87 to drive the clamping plate 86 to descend, so that the clamping plate 86 tightly holds the plate to be processed. The clamping mechanism can fix the plate to be processed to ensure that the base material to be processed does not deviate during the conveying process. The tensioning mechanism includes a tensioning base 92, a tensioning block 91 and a telescopic rod 87. The tensioning base 92 is fixed on the carriage 82 by screws. The tensioning base 92 is connected with the tensioning block 91 through the telescopic rod 87. When the clamping mechanism completes the clamping work, the tensioning mechanism controls the telescopic rod 87 to contract to make the base material to be processed expand outwards, ensuring that the surface of the base material to be processed is expanded without wrinkles. Three groups of symmetric clamping mechanisms and tensioning mechanisms are arranged on both slide rails 81. When the clamping mechanism and the tensioning mechanism complete the work, the translation motor 83 rotates to convey the base material to be processed above the bearing plate 4 for further processing.

[0040] A control method applicable to an automatic gluing multi-layer different material substrate bonding machine includes the following steps:

[0041] S1. In the pre-processing stage, place the bottom plate on the bearing plate and limit and fix the bottom plate through the fixing blocks on the surface of the bearing plate; place the top plate on the material supporting plate and fix it through the vacuum adsorption module on the surface of the material supporting plate;

[0042] S2. In the gluing stage, the gluing mechanism applies glue to the bottom plate along a spiral track, and the gluing mechanism resets when the gluing is completed;

[0043] S3. In the bonding stage, the material supporting plate descends to make the top plate and the bottom plate bond and fit together to form a substrate;

[0044] S4. In the second gluing stage, the gluing mechanism applies glue to the substrate along a spiral track and resets after the gluing is completed.

[0045] S5. In the feeding stage, the cover plate is placed on the feeding platform. The clamping mechanism fixes the substrate, the tensioning mechanism relaxes the substrate, and the feeding mechanism transports the substrate above the substrate.

[0046] S6. In the second bonding stage, the supporting tray descends to press the cover plate against the substrate for bonding and fitting, forming a composite board.

[0047] S7. In the trimming stage, the trimming mechanism trims the excess corner parts of the composite board.

[0048] S8. In the reset stage, the supporting tray rises and resets, and the composite board is taken out to complete one processing.

[0049] In step S1, the substrate to be processed is manually placed on the bearing tray and the supporting tray, and at the same time, processing information is input. The processing information includes the bonding range, the trimming range, the number of substrates to be processed, and their bonding methods.

[0050] In step S2, the gluing mechanism preheats when the equipment starts to ensure the temperature inside the glue gun and make the hot melt adhesive achieve the best bonding effect.

[0051] In step S3, the control panel controls the cylinder to drive the supporting tray to descend until it fits with the chassis, and uses the downward pressure of the cylinder to accelerate the bonding of the substrate to form a substrate.

[0052] In step S4, the gluing mechanism applies glue again to prepare for the next bonding.

[0053] In step S5, when increasing the number of bonded substrate layers, since the substrate cannot be directly placed on the bearing tray manually, the substrate to be processed can only be placed on the feeding platform. The feeding platform fixes and relaxes the substrate and transports the substrate above the bearing tray.

[0054] In step S6, the control panel directly controls the supporting tray to descend and press and bond the substrate on the feeding mechanism to form a three-layer composite board. When multiple-layer composite boards are required, steps S4, S5, and S6 are repeated.

[0055] In step S7, when the required composite board is formed after processing, the trimming tool works to trim the excess corner parts of the composite board. The trimming tool is an independent control component of the control panel and can work once after one bonding is completed.

[0056] In step S8, after processing is completed, the oil cylinder controls the supporting tray to rise and reset to prepare for the next bonding.

[0057] Embodiment 2:

[0058] This embodiment is generally the same as the device in Embodiment 1. The only difference is that a needle and a plate clamp are provided on the material supporting mechanism. When the material to be processed is a thin film or a relatively soft substrate, the vacuum adsorption module 34 cannot adsorb the substrate to be processed well, which will cause the surface of the substrate to be sunken. The needle and the plate clamp provided on the material supporting mechanism can clamp and fix the thin film-like substrate. When it is necessary to bond the thin film-like substrate, the substrate can be placed on the carrier plate 4, the material supporting mechanism is controlled to descend, the thin film-like substrate is penetrated and fixed and then rises to prepare for bonding, or the plate clamp can be used to fix the plate to be processed.

[0059] The above is only the preferred embodiment of the present invention, and it is not intended to limit the present invention. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic glue - applying bonding machine for multi - layer substrates of different materials, characterized in that: It includes a main frame (1) and a sub-frame (7). The main frame (1) is detachably connected to the sub-frame (7). An operation panel (2), a material pressing mechanism (3), a bearing plate (4), a trimming mechanism (5) and a gluing mechanism (6) are arranged on the main frame (1); a material laying mechanism (8), a positioning mechanism (9) and a feeding mechanism (10) are arranged on the sub-frame (7). The gluing mechanism (6) is arranged on the bearing plate (4). The bearing plate (4) is set as a product processing area and is used to bear the material pressing mechanism (3). The material pressing mechanism (3) is arranged at the top of the main frame (1). The feeding mechanism (10) is arranged on the sub-frame (7) and penetrates and is inserted into the inside of the main frame (1). The positioning mechanism (9) and the material laying mechanism (8) are arranged on the feeding mechanism (10); The material pressing mechanism (3) includes a cylinder (31), a material supporting plate (32), a lifting guiding mechanism (33) and a vacuum adsorption module (34). The material supporting plate (32) is arranged at the bottom end of the cylinder (31). The cylinder (31) is arranged on the top cross beam of the main frame (1). The vacuum adsorption module (34) is arranged on the surface of the material supporting plate (32). The lifting guiding mechanism (33) is 4 cylinders that fit the cross beam of the main frame (1). The bottom of the lifting guiding mechanism (33) is fixed on the material supporting plate (32). The material pressing mechanism (3) is used to adsorb and press the base material; The bearing plate (4) is covered and arranged inside the middle layer of the main frame (1). Through holes and fixing blocks are arranged on the surface of the bearing plate (4). The fixing blocks are used to fix the base material. The gluing mechanism (6) is fixed on the bearing plate (4) by screws; The gluing mechanism (6) includes a glue gun (61), a servo motor (62), a transverse chute (63) and a longitudinal chute (64). The glue gun (61) is fixed on the longitudinal chute (64). The transverse chute (63) and the longitudinal chute (64) are arranged on the bearing plate (4). The longitudinal chute (64) of the glue gun (61) is connected to the servo motor (62) through an electric wire; The trimming mechanism (5) includes a trimming oil cylinder (51) and a trimming die (52). The trimming oil cylinder (51) is arranged on the main frame (1) through a connecting column. The trimming die (52) is arranged below the trimming oil cylinder (51); The feeding mechanism (10) includes a slide rail (81), a carriage (82), a translation motor (83), a transmission belt (84) and a transmission rod (85). The slide rail (81) is fixed on the main and sub-frames (7) by screws and is arranged below the through hole of the bearing device. The translation motor (83) is fixed on the cross beam of the sub-frame (7) by screws. The transmission rod (85) is arranged between the slide rails (81) and at the tail of the slide rails (81). The power end of the translation motor (83) is rotationally connected to the transmission rod (85) through a conveyor belt; The material laying mechanism (8) includes a material laying platform and a clamping mechanism. The clamping mechanism includes a clamping base (88), a clamping plate (86) and a telescopic rod (87). The clamping base (88) is fixed on the side wall of the carriage (82) by screws. The telescopic rod (87) is arranged inside the clamping base (88). The clamping plate (86) is arranged at the top end of the telescopic rod (87); The positioning mechanism (9) includes a number of tensioning mechanisms. Each tensioning mechanism includes a tensioning base (92), a tensioning block (91), and a telescopic rod (87). The tensioning base (92) is fixed to the carriage (82) by screws, and the tensioning base (92) is connected to the tensioning block (91) by the telescopic rod (87). The surface of the material supporting tray (32) is further provided with an upper substrate positioning structure (35), a photoelectric inductor (36), and a safety plug mechanism (37). The photoelectric inductor (36) is used to detect and feedback the descending information of the material pressing mechanism (3).

2. A control method for an automatic glue - applying bonding machine for multi - layer substrates of different materials as described in claim 1, characterized in that, It includes the following steps: S1. In the preprocessing stage, place the bottom plate on the bearing tray, and limit and fix the bottom plate through the fixing blocks on the surface of the bearing tray; place the top plate on the material supporting tray, and fix it through the vacuum adsorption module on the surface of the material supporting tray; S2. In the glue coating stage, the glue coating mechanism applies glue to the bottom plate along a spiral track, and the glue coating mechanism resets when the glue coating is completed; S3. In the bonding stage, the material supporting tray descends to bond and fit the top plate and the bottom plate to form a substrate; S4. In the secondary glue coating stage, the glue coating mechanism applies glue to the substrate along a spiral track, and the glue coating mechanism resets when the glue coating is completed; S5. In the feeding stage, place the cover plate on the feeding platform, the clamping mechanism fixes the substrate, the tensioning mechanism relaxes the substrate, and the feeding mechanism transports the substrate above the substrate; S6. In the secondary bonding stage, the material supporting tray descends to press the cover plate to bond and fit it with the substrate to form a composite board; S7. In the edge trimming stage, the edge trimming mechanism repairs the redundant corner parts of the composite board; S8. In the reset stage, the material supporting tray rises and resets, takes out the composite board, and completes one processing.

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