Heavy load flexible connection structure for large size high definition panel manufacturing

Abstract

The application discloses a heavy-load flexible connecting structure for large-size high-definition panel manufacturing, which comprises a printing platform, four heavy-load flexible connecting mechanisms fixed at the four corners of the bottom of the printing platform and facing each other, and a rotating motion module for providing a rotating motion degree of freedom along a Y-axis direction, a base for providing a rotating motion degree of freedom along a Z-axis direction, a translation motion module for providing a translation motion degree of freedom along an X-axis direction and a top supporting platform, wherein the bottom of the translation motion module is connected with the base through the bottom supporting platform, the middle supporting platform is installed on the translation motion module, one rotating motion module is installed at the left end and the right end of the middle supporting platform respectively, and the top supporting platform is fixed on the rotating motion module. The application can fix and high-precision position the printing platform, and eliminate the influence of environmental temperature change and internal heat source of the equipment on the positioning precision.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of an OLED inkjet printing platform, and particularly relates to a heavy-load flexible connecting structure for manufacturing a large-size high-definition panel. BACKGROUND

[0002] With the development of display technology, people have higher and higher requirements for display devices, and with the continuous iteration of technology, an organic light-emitting diode (OLED) has become one of the most popular display technologies at present. With the emergence of the organic light-emitting diode (OLED), the traditional vacuum evaporation technology for preparing an OLED display screen cannot meet the manufacturing of large-screen OLED devices, so the OLED inkjet printing technology is derived. Compared with the traditional vacuum evaporation process for preparing an OLED, the inkjet printing technology has unique advantages, such as a higher material utilization rate, no limitation of equipment and a large-size fine metal mask, and the like.

[0003] An important index of an inkjet printer is the positioning accuracy of droplets, which is affected by the positioning accuracy and moving accuracy of a mechanical displacement platform. Most of the current inkjet printing equipment uses a high-precision air bearing platform for positioning and moving, and the use of the high-precision air bearing platform has higher requirements for the surrounding gas, the temperature of the environment and the temperature of the equipment itself (dust particle filtration ≤0.25um or purity 99.99% nitrogen, test environment temperature 20±1℃, humidity 40%-60%RH). Most of the connections between traditional mechanical parts adopt rigid connection, and this connection mode will generate thermal stress and thermal deformation in the hinge when the environmental temperature changes, which will reduce the connection accuracy and positioning accuracy. At present, most flexible hinges adopt a notched design to make the mechanism flexible, which will inevitably cause high stress concentration of the hinge when facing heavy-load working conditions or large inkjet printing equipment, thereby causing static deformation of the equipment, and further greatly reducing the dynamic performance and service life of the equipment. Therefore, the application provides a heavy-load flexible connecting structure for manufacturing a large-size high-definition panel. SUMMARY

[0004] The application provides a heavy-load flexible connecting structure for manufacturing a large-size high-definition panel, so that the fixing and high-precision positioning of a printing platform can be completed, and the influence of environmental temperature changes and internal heat sources of the equipment on the positioning accuracy is eliminated.

[0005] Therefore, the application provides a heavy-load flexible connecting structure for manufacturing a large-size high-definition panel, which comprises a printing platform and four heavy-load flexible connecting mechanisms fixed at four corners of the bottom of the printing platform and facing each other.

[0006] The heavy-load flexible connecting mechanism comprises a rotary motion module for providing a rotary motion degree of freedom along a Y-axis direction, a base for providing a rotary motion degree of freedom along a Z-axis direction, a translational motion module for providing a translational motion degree of freedom along an X-axis direction, and a top supporting platform for being connected with the printing platform;

[0007] The bottom of the translational motion module is connected with the base through a bottom supporting platform;

[0008] An intermediate supporting platform is mounted on the translational motion module;

[0009] One rotary motion module is mounted on each of the left and right ends of the intermediate supporting platform;

[0010] The top supporting platform is located above the translational motion module, and the bottom of the top supporting platform is fixedly connected with two rotary motion modules respectively.

[0011] Optionally, the translational motion module comprises a square tube body and an intermediate platform arranged at a central position in the square tube body;

[0012] The top and bottom four corners of the intermediate platform are fixedly connected with the inner wall of the square tube body through metal connecting plates respectively;

[0013] The metal connecting plates are arranged in parallel along the X-axis direction;

[0014] An installation hole for mounting the intermediate supporting platform is formed in the intermediate platform;

[0015] The intermediate supporting platform is located in the installation hole and is in interference fit with the installation hole;

[0016] The width of the intermediate supporting platform is greater than the width of the square tube body, and first through holes for allowing the intermediate supporting platform to protrude are formed in the left and right side walls of the square tube body correspondingly;

[0017] The width of the first through hole is greater than the width of the intermediate supporting platform.

[0018] Optionally, the size of the installation hole is adapted to the size of the intermediate supporting platform.

[0019] Optionally, the rotary motion module comprises a module main body, a first installation platform, and two first metal elastic sheets arranged crosswise between the module main body and the first installation platform.

[0020] Optionally, the rotary motion module comprises a module main body, a first installation platform, and two supporting beams arranged between the module main body and the first installation platform;

[0021] The two support beams are arranged at an angle.

[0022] Optionally, the top support platform is fixedly connected with the rotary motion module by bolts.

[0023] Optionally, a second through hole is arranged at the center of the top of the base;

[0024] A second installation platform for connecting with the bottom support platform is arranged in the second through hole;

[0025] The second installation platform is connected with the base by a plurality of second metal springs.

[0026] Optionally, the second through hole is circular in shape.

[0027] The second metal spring is arranged in a curved manner.

[0028] Optionally, a plurality of connecting holes are arranged on the second installation platform.

[0029] A protrusion corresponding to the connecting hole is arranged on the bottom support platform.

[0030] The protrusion is in interference fit with the connecting hole.

[0031] Optionally, the base is fixedly connected with the ground or a moving platform by bolts.

[0032] From the above technical solution, it can be seen that the present application has the following advantages: the heavy-load flexible connection structure fixes the printing platform by using four heavy-load flexible connection mechanisms with different orientations, which can ensure that the movement of the printing platform in all directions is constrained. At the same time, since each heavy-load flexible connection mechanism has two rotational degrees of freedom and one translational degree of freedom, it can form movement by bending the structure, and then rotate in the direction of the degree of freedom or around the axis containing the degree of freedom to release thermal stress, thereby having good thermal stress and thermal strain release function. When the temperature around changes, it can still provide high-precision positioning. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 FIG. 1 is a structural schematic diagram of a heavy-load flexible connection structure for large-size high-definition panel manufacturing in the present application;

[0034] Figure 2 FIG. 3 is a structural schematic diagram of a heavy-load flexible connection mechanism in the present application;

[0035] Figure 3 FIG. 4 is a front view of the heavy-load flexible connection mechanism in the present application;

[0036] Figure 4Figure 1 is a schematic diagram of the installation of the heavy-load flexible connecting mechanism in the embodiment of the present application;

[0037] Figure 5 Figure 2 is a schematic diagram of the degrees of freedom of the heavy-load flexible connecting mechanism in the embodiment of the present application;

[0038] Figure 6 Figure 3 is a schematic diagram of the structure of the translational motion module in the embodiment of the present application;

[0039] Figure 7 Figure 4 is a schematic diagram of the structure of the base in the embodiment of the present application;

[0040] Figure 8 Figure 5 is a schematic diagram of the first structure of the rotational motion module in the embodiment of the present application;

[0041] Figure 9 Figure 6 is a schematic diagram of the structure of a single first metal spring in the embodiment of the present application;

[0042] Figure 10 Figure 7 is a schematic diagram of the second structure of the rotational motion module in the embodiment of the present application;

[0043] Figure 11 Figure 8 is a schematic diagram of the structure of the intermediate support platform in the embodiment of the present application;

[0044] Figure 12 Figure 9 is a schematic diagram of the structure of the top support platform in the embodiment of the present application;

[0045] Figure 13 Figure 10 is a schematic diagram of the structure of the bottom support platform in the embodiment of the present application;

[0046] Figure 14 Figure 11 is a diagram of the distribution of the constraint lines of the printing platform in the X-Y plane in the embodiment of the present application;

[0047] Figure 15 Figure 12 is a diagram of the distribution of the constraint lines of the printing platform in the X-Z plane in the embodiment of the present application;

[0048] Figure 16 Figure 13 is a diagram of the distribution of the constraint lines of the printing platform in space in the embodiment of the present application;

[0049] Figure 17 Figure 14 is a schematic diagram of the topological degree of freedom space of the constraint space formed by the constraint lines of a single side of the printing platform in the embodiment of the present application;

[0050] Figure 18 Figure 15 is a schematic diagram of the principle of absorbing thermal stress and thermal deformation by the flexible mechanism in the embodiment of the present application;

[0051] In the drawings, the reference signs are as follows:

[0052] 1-printing platform, 2-heavy load flexible connection mechanism, 21-translation motion module, 211-square tube body, 212-intermediate platform, 213-metal connecting plate, 214-mounting hole, 215-first through hole, 22-base, 221-second mounting platform, 222-second metal spring, 23-bottom support platform, 231-bump, 24-rotation motion module, 241-module body, 242-first mounting platform, 243-first metal spring, 244-support beam, 25-top support platform, 26-intermediate support platform, 3-moving platform. DETAILED DESCRIPTION

[0053] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor fall within the scope of protection of the present application.

[0054] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0055] Unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0056] The present application provides an embodiment of a heavy load flexible connection structure for large size high definition panel manufacturing, please refer to Figures 1 to 5 .

[0057] The heavy load flexible connection structure for large-size high-definition panel manufacturing in the embodiment comprises a printing platform 1 and four heavy load flexible connection mechanisms 2 fixed at the bottom corners of the printing platform 1 and facing different directions, each of the heavy load flexible connection mechanisms 2 comprises a rotary motion module 24 for providing a rotary motion degree of freedom along the Y-axis direction, a base 22 for providing a rotary motion degree of freedom along the Z-axis direction, a translation motion module 21 for providing a translation motion degree of freedom along the X-axis direction, and a top support platform 25 for connecting with the printing platform 1, the bottom of the translation motion module 21 is connected with the base 22 through a bottom support platform 23, an intermediate support platform 26 is installed on the translation motion module 21, one rotary motion module 24 is installed at each of the left and right ends of the intermediate support platform 26, the top support platform 25 is located above the translation motion module 21, and the bottom of the top support platform 25 is fixedly connected with the two rotary motion modules 24.

[0058] It should be noted that the heavy load flexible connection structure can fix the printing platform 1 through the four heavy load flexible connection mechanisms 2 facing different directions, so as to ensure that the movement of the printing platform 1 in all directions is constrained, and since each heavy load flexible connection mechanism 2 has two rotary degrees of freedom and one translation degree of freedom, it can form movement through the bending of the structure, and then rotate towards the direction of the degree of freedom or around the axis containing the degree of freedom to release thermal stress, so as to effectively absorb the thermal deformation of the equipment caused by the environmental temperature change and the internal heat source (including but not limited to vacuum fan, motor, power supply, controller, etc.) of the inkjet printing equipment, thereby ensuring that the droplet positioning accuracy of the inkjet printer is not affected by the mechanical displacement platform.

[0059] The above is the first embodiment of the heavy load flexible connection structure for large-size high-definition panel manufacturing provided by the embodiment, and the following is the second embodiment of the heavy load flexible connection structure for large-size high-definition panel manufacturing provided by the embodiment, please refer to Figures 1 to 18 .

[0060] The heavy load flexible connection structure for large size high definition panel manufacturing in the embodiment comprises a printing platform 1 and four heavy load flexible connection mechanisms 2 fixed at the four corners of the bottom of the printing platform 1 and facing each other, the heavy load flexible connection mechanism 2 comprising a rotary motion module 24 for providing a rotary motion degree of freedom along the Y axis direction, a base 22 for providing a rotary motion degree of freedom along the Z axis direction, a translational motion module 21 for providing a translational motion degree of freedom along the X axis direction, and a top support platform 25 for connecting with the printing platform 1, the bottom of the translational motion module 21 being connected with the base 22 through a bottom support platform 23, and an intermediate support platform 26 being installed on the translational motion module 21, and one rotary motion module 24 being installed at each of the left and right ends of the intermediate support platform 26, and the two rotary motion modules 24 being connected through bolts. The top support platform 25 is located above the translational motion module 21, and the bottom of the top support platform 25 is fixedly connected with the two rotary motion modules 24 at the two sides, respectively. By connecting the rotary motion module 24 with the printing platform 1 through the top support platform 25, the shape of the printing platform 1 is not required, and the printing platform 1 can be directly installed on the top support platform 25, so that the installation of the printing platform 1 is more convenient.

[0061] It can be understood that, since the base 22, the rotary motion module 24 and the translational motion module 21 can provide certain degrees of freedom for the heavy load flexible connection mechanism 2, the heavy load flexible connection mechanism 2 can release thermal stress. The mechanism does not have a large stroke in the degrees of freedom, and the movement is formed by the bending of the structure, and the bending is rotated towards the direction of the degrees of freedom or around the axis containing the degrees of freedom, so as to release the thermal stress. In the heavy load flexible connection mechanism 2, the constraint and the movement are quantified by the stiffness, that is, the high stiffness and the low stiffness are regarded as the constraint and the movement, respectively. In order to ensure that the mechanism can move in the direction we want, a certain degree of freedom is provided. These movements are used to release the thermal stress caused by thermal expansion and other reasons when the temperature changes. The thermal stress will cause thermal deformation, and the thermal deformation in any direction will affect the positioning accuracy. Providing different stiffnesses in different movement directions of the mechanism is equivalent to releasing the thermal deformation in the direction of the degrees of freedom. Because the stiffness in the direction with the degrees of freedom is small, and the stiffness in the direction with the constraint is large, the positioning accuracy of the mechanism will not change when the temperature changes.

[0062] According to the principle of precise constraint, when the printing platform 1 is constrained as shown in Figure 14 , all the constraint lines are in the same plane, all the rotary movements of the platform in the plane in which the platform is located along the axes intersecting the plane will be constrained, that is, the movement out of the plane will be constrained. At this time, the platform only has translational movement perpendicular to the plane in which the platform is located and rotary movement along two axes in the plane. Then, introduce a constraint line in the plane in which the constraint lines are located as shown in Figure 15The two newly introduced constraint lines are at an angle, which means that the two constraints constrain the translational movement of the platform along the Z-axis direction and the two rotational movements in the previous plane. At this time, the six degrees of freedom of the platform in space are all constrained, and the final constraints of the platform in space are as shown in Figure 16 Next, the constraints need to be disassembled, that is, a triangular constraint needs to be provided in a plane of the platform, and according to the principle of spatial complementarity of constraints and freedoms (when the heavy-load flexible connecting mechanism 2 has the degrees of freedom as shown in Figure 17 , it must have a constraint of three constraint lines in the same plane), the degrees of freedom space obtained from the triangular constraint is as shown in Figure 17 , that is, when we provide the heavy-load flexible connecting mechanism 2 with the degrees of freedom space as shown in Figure 17 , the constraint space as shown in Figure 16 can be obtained.

[0063] The principle of absorbing thermal stress and thermal deformation of the flexible mechanism is as shown in Figure 18 When the temperature of the environment changes, the material will expand or contract due to thermal expansion and contraction. Assuming that the temperature of the environment rises, the flexible beam in the figure will expand and its volume will increase. However, because the moment of inertia of the cross section of the flexible beam in the Z-axis direction is large, the stiffness in the Z-axis direction will be large, and when it is fixed, the internal thermal stress will be released in the direction of the smaller moment of inertia, that is, the direction of smaller stiffness, which is the Y-axis direction in the figure, which will cause the flexible beam to bend in the Y-axis direction (the stiffness in the Y-axis direction is small and easy to deform). The dashed line in the figure is the deformed flexible beam. Due to thermal expansion and contraction, the length of the flexible beam will increase, but because the stiffness in the X-axis direction is large, it is not easy to deform in the X-axis direction, so most of the deformation occurs in the Y-axis direction. Finally, the length of the flexible beam increases due to the temperature rise, but the length in the X-axis direction almost does not change, and the thermal stress and thermal strain are released along the Y-axis direction. In this way, the positioning accuracy in the X-axis direction almost remains unchanged.

[0064] As shown in Figure 6As shown, the translational motion module 21 comprises a square tube body 211 and an intermediate platform 212 arranged at a central position in the square tube body 211, the top four corners and the bottom four corners of the intermediate platform 212 are fixedly connected with the inner wall of the square tube body 211 through metal connecting plates 213 respectively, the metal connecting plates 213 are arranged in parallel along the X-axis direction, specifically, the number of the metal connecting plates 213 can be 8; an installation hole 214 for installing the intermediate support platform 26 is formed in the intermediate platform 212, the intermediate support platform 26 is located in the installation hole 214 and is in interference fit with the installation hole 214; the width of the intermediate support platform 26 is greater than the width of the square tube body 211, and first through holes 215 corresponding to the left and right side walls of the square tube body 211 are formed on the left and right side walls of the square tube body 211 for the intermediate support platform 26 to extend out, the width of the first through holes 215 is greater than the width of the intermediate support platform 26, so as to ensure that the intermediate support platform 26 can perform a slight translational motion in the X-axis direction as the intermediate platform 212 has a translational motion freedom. It can be understood that when the temperature changes, the eight metal connecting plates 213 around the intermediate platform 212 will bend, thereby causing the intermediate platform 212 to translate to release thermal stress, and the intermediate support platform 26 is installed on the intermediate platform 212, so that the intermediate support platform 26 cannot move relative to the intermediate platform 212, when the intermediate platform 212 moves in the X-axis direction, the intermediate support platform 26 will also translate with the intermediate platform 212, so as to release the thermal stress.

[0065] It should be noted that when the translational motion module 21 is working, the square tube body 211 is fixed, since the thickness of the metal connecting plate 213 in the X-axis direction is relatively thin, and the thickness of the metal connecting plate 213 in the Y-axis direction is relatively thick, which makes the moment of inertia of the cross section larger when the force is loaded on the metal connecting plate 213 from the Y-axis direction, and the moment of inertia of the cross section smaller when the force is loaded on the metal connecting plate 213 from the X-axis direction, at this time the metal connecting plate 213 will easily deform, which makes the intermediate platform 212 connected therewith can perform a slight translational motion in the X-axis direction. In addition, the thickness of the metal connecting plate 213 in the X-axis direction also cannot be too small, in order to prevent the compression bending from occurring, the specific thickness can be determined according to the load condition (i.e. the weight of the printing platform 1) in actual application.

[0066] The size of the installation hole 214 is adapted to the size of the intermediate support platform 26, that is, the size of the installation hole 214 is consistent with the size of the intermediate support platform 26, so as to ensure that there is no extra space after installation, so that the intermediate support platform 26 can perform a slight translational motion in the X-axis direction together with the intermediate platform 212.

[0067] As Figure 8As shown, the rotary motion module 24 comprises a module body 241, a first mounting platform 242, and two first metal springs 243 arranged crosswise between the module body 241 and the first mounting platform 242.

[0068] It can be understood that, as Figure 9 shown, the single first metal spring 243 in the figure has a larger thickness in the X-axis direction and a smaller thickness in the Y-axis direction, which results in different cross-sectional moments of inertia when force is loaded from two different directions, and thus different stiffnesses. The single first metal spring 243 can rotate along any axis in the plane in which it is located due to its model characteristics, and when the two first metal springs 243 are arranged crosswise, the platform connected to the two first metal springs 243 can only rotate along the position where the two first metal springs 243 cross, so that the rotary motion module 24 can provide rotary motion in the Y-axis direction.

[0069] The rotary motion module 24 can also adopt a structure as Figure 10 shown, that is, it comprises a module body 241, a first mounting platform 242, and two support beams 244 arranged between the module body 241 and the first mounting platform 242, and the two support beams 244 are arranged at an angle.

[0070] The top support platform 25 is fixedly connected to the rotary motion module 24 by bolts. Specifically, as Figure 12 shown, the top support platform 25 has a hole position reserved for connection with the plane on the rotary motion module 24.

[0071] As Figure 7 shown, a second through hole is formed in the center of the top of the base 22, and a second mounting platform 221 for connecting with the bottom support platform 23 is arranged in the second through hole, and the second mounting platform 221 is connected to the base 22 by a plurality of second metal springs 222.

[0072] It should be noted that the second mounting platform 221 does not directly contact the base 22, but has a small distance, which is supported by the thin second metal springs 222. Since each second metal spring 222 has a relatively thick thickness in the vertical direction and only a relatively thin thickness in the horizontal direction, it has a relatively high stiffness in the vertical direction and a relatively low stiffness in the horizontal direction, so that the second mounting platform 221 connected thereto cannot move in the vertical direction, but can rotate along an axis in the vertical direction at the middle position, so that the base 22 can provide rotary motion in the Z-axis direction.

[0073] Specifically, the number of the second metal springs 222 can be 8; the shape of the second through hole can be circular, and the second metal spring 222 is arranged in a curved manner; and the second mounting platform 221 is in a cross-shaped structure.

[0074] As shown in Figure 7 , a plurality of connecting holes can be formed in the second mounting platform 221 for connecting with the bottom support platform 23; as shown in Figure 13 , the bottom support platform 23 is provided with a protrusion 231 corresponding to the connecting hole, and the protrusion 231 is in interference fit with the connecting hole, so that the installation difficulty is small. It can be understood that the bottom support platform 23 can also be fixedly connected with the base 22 by other ways, such as bolt connection, which can be selected according to the needs and specific conditions in actual use, and is not limited here. Similarly, the connecting mode between the bottom support platform 23 and the translation motion module 21 can be the same as that between the bottom support platform 23 and the base 22.

[0075] The base 22 can be fixedly connected with the ground or the moving platform 3 by bolts, or can be fixed by other ways, which is not limited here. When the inkjet printing device works, the heavy load flexible connecting mechanism 2 is responsible for fixing the printing platform 1, and when the moving platform 3 moves, the heavy load flexible connecting mechanism 2 will move with the printing platform 1.

[0076] During installation, first, the bottom support platform 23 is installed on the base 22, and the translation motion module 21 is installed on the bottom support platform 23, then the middle support platform 26 is installed on the translation motion module 21, and one rotating motion module 24 is installed at each end of the middle support platform 26, and finally the top support platform 25 is installed on the two rotating motion modules 24. When all the modules are completely assembled, the overall degree of freedom is as shown in Figure 5 , since the modules are approximately connected in series, the printing platform 1 installed on the top support platform 25 will have all the degrees of freedom of the entire device, that is, two rotational degrees of freedom and one translational degree of freedom in Figure 5 . At the same time, one heavy load flexible connecting mechanism 2 can provide a triangular constraint for the top printing platform 1 as shown in Figure 15 , and four heavy load flexible connecting mechanisms 2 are needed to cooperate with the installation of the part connected with the mechanism (the orientation of each heavy load flexible connecting mechanism 2 needs to be different to ensure that the movement of the printing platform 1 to be fixed in all directions is constrained), and finally the constraint space as shown in Figure 16 is obtained, realizing the complete fixation of the printing platform 1. It can be understood that the printing platform 1 is installed at the top support platform 25 of the heavy load flexible connecting mechanism 2, and the two can be connected by bolts or other ways, which is not limited here.

[0077] The four heavy-load flexible connecting mechanisms 2 with three degrees of freedom are used to fix the printing platform 1, compared with the conventional rigid connecting mechanism, the heavy-load flexible connecting structure has the function of good thermal stress and thermal strain release, and can still provide high-precision positioning when the temperature around changes, at the same time, by using parallel metal connecting plates 213, first metal elastic sheets 243 and second metal elastic sheets 222 on the translation movement module 21, the rotation movement module 24 and the base 22 respectively, and reasonable arrangement and distribution, the stiffness along the Z-axis direction can be maximized without increasing the volume of the mechanism, and then the deformation is still small under the heavy-load working condition.

[0078] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A heavy load flexible connection structure for large size high definition panel manufacturing, characterized by, The utility model relates to a heavy load flexible connection mechanism for printing platform, which comprises the following steps: The printing platform and the fixed at the four corners of the printing platform bottom and the four different heavy load flexible connection mechanism towards each other; The heavy load flexible connection mechanism includes a rotary motion module for providing a rotary motion degree along the Y-axis direction, a base for providing a rotary motion degree along the Z-axis direction, a translational motion module for providing a translational motion degree along the X-axis direction, and a top support platform for connecting with the printing platform; The bottom of the translational motion module is connected with the base through a bottom support platform; An intermediate support platform is installed on the translational motion module; The left and right ends of the intermediate support platform are respectively provided with one rotary motion module; The top support platform is located above the translational motion module, and the bottom of the top support platform is fixedly connected with two rotary motion modules on both sides; The translational motion module comprises a square tube body and an intermediate platform arranged at the central position in the square tube body; The top four corners and the bottom four corners of the intermediate platform are fixedly connected with the inner wall of the square tube body through metal connecting plates respectively; The metal connecting plates are arranged in parallel along the X-axis direction; An installation hole for installing the intermediate support platform is formed in the intermediate platform; The intermediate support platform is located in the installation hole and is in interference fit with the installation hole; The width of the intermediate support platform is greater than the width of the square tube body, and first through holes for the intermediate support platform to extend out are formed in the left and right side walls of the square tube body; The width of the first through hole is greater than the width of the intermediate support platform. 2.The heavy load flexible connection structure for large-size high-definition panel manufacturing of claim 1, wherein, The size of the installation hole is matched with the size of the intermediate support platform. 3.The heavy load flexible connection structure for large-size high-definition panel manufacturing of claim 1, wherein The rotary motion module comprises a module main body, a first installation platform, and two first metal springs arranged between the module main body and the first installation platform. 4.The heavy load flexible connection structure for large-size high-definition panel manufacturing of claim 1, wherein, The rotary motion module comprises a module main body, a first installation platform, and two support beams arranged between the module main body and the first installation platform; The two support beams are arranged at an angle. 5.The heavy-load flexible connection structure for large-size high-definition panel manufacturing of claim 1, wherein, The top support platform is fixedly connected with the rotary motion module through bolts. 6.The heavy load flexible connection structure for large-size high-definition panel manufacturing of claim 1, wherein, A second through hole is formed in the central position of the top of the base; A second installation platform for connecting with the bottom support platform is arranged in the second through hole; The second installation platform is connected with the base through a plurality of second metal springs. 7.The heavy load flexible connection structure for large-size high-definition panel manufacturing of claim 6, wherein, The second through hole is circular in shape; The second metal springs are arranged in a curved manner. 8.The heavy load flexible connection structure for large-size high-definition panel manufacturing of claim 6, wherein, A plurality of connecting holes are formed in the second installation platform; The bottom support platform is provided with protrusions corresponding to the connecting holes; The protrusions are in interference fit with the connecting holes. 9.The heavy-load flexible connection structure for large-size high-definition panel manufacturing of claim 1, wherein, The base is fixedly connected with the ground or a moving platform through bolts.

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