Bending jig

Abstract

This invention provides a bending fixture, including a base, a transmission mechanism, two support plates, and two connecting rod structures. The two support plates respectively support a first part and a second part of a folding module. The base is located between the two support plates, and the base and the two support plates are connected by the two connecting rod structures. The two support plates are folded or unfolded relative to each other by the transmission mechanism. When the two support plates are folded, a receiving space is formed between the two connecting rod structures. The bending fixture provided by this invention, when folded, forms a receiving space between the two connecting rod structures. The teardrop shape formed by the folding module placed on the bending fixture after folding is located between the two connecting rod structures, reserving space for the folded part of the folding module. Moreover, this folding fixture does not obstruct the sides of the folding module, facilitating observation of the teardrop shape and the displacement of each layer inside the module.

Description

Technical Field

[0001] This invention belongs to the field of jig technology, and more specifically, relates to a bending jig. Background Technology

[0002] Foldable screen phones have a structure similar to hinges, allowing them to be bent. Before the folding module leaves the factory, the water droplet bending area needs to be observed, comparing the actual water droplet morphology with the simulated one. The displacement of each layer of the folding module can also be observed to evaluate the bending performance of the module material. During bending tests, the folding module can be placed on a bending fixture, which then bends the module. However, the current structure of bending fixtures needs improvement. Summary of the Invention

[0003] The purpose of this invention is to provide a bending fixture to solve the technical problem that the structure of bending fixtures in the prior art needs to be improved.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a bending fixture is provided, including a base, a transmission mechanism, two support plates, and two connecting rod structures. The two support plates are respectively used to support the first part and the second part of the folding module. The base is located between the two support plates. The base and the two support plates are respectively connected by the two connecting rod structures. The two support plates are folded or unfolded relative to each other by the transmission mechanism. When the two support plates are folded, an accommodating space is formed between the two connecting rod structures.

[0005] In the above scheme, the bending fixture includes a base, a transmission mechanism, two support plates, and two connecting rod structures. The base and support plates are connected by the connecting rod structures, and the two support plates are connected by the transmission mechanism. When the two support plates rotate relative to each other, the transmission mechanism keeps the two support plates linked together. Furthermore, the support plates can drive the connecting rod structures to rotate, creating a space between the two connecting rod structures when the bending fixture is folded. The teardrop shape formed by the folding module placed on the bending fixture after folding is located between the two connecting rod structures, reserving space for the folded portion of the folding module. Moreover, this folding fixture does not obstruct the sides of the folding module, facilitating observation of the teardrop shape and the displacement of each layer within the module.

[0006] Optionally, the transmission mechanism includes a first gear and a second gear that mesh with each other, both of which are rotatably mounted on the base. One of the support plates is used to drive the first gear to rotate, and the other support plate is used to drive the second gear to rotate.

[0007] In the above scheme, the arrangement of the first and second gears allows the two support plates to move synchronously in opposite directions, mirroring the movement of the first and second parts of the folding module. This ensures the two support plates remain firmly attached to the first and second parts at all times. Furthermore, the gear structure boasts high structural strength, making it less prone to damage during repeated engagements. Simultaneously, the first and second gears do not occupy the peripheral space of the folding module, thus avoiding obstruction of its perimeter and facilitating observation of the folding module.

[0008] Optionally, a first sliding rod is fixed to the outer side of the first gear, and one of the support plates has a sliding hole into which the first sliding rod extends; and / or, a second sliding rod is fixed to the outer side of the second gear, and the other support plate has a sliding hole into which the second sliding rod extends.

[0009] In the above scheme, the rotation of one of the support plates can drive the first gear to rotate by setting the first sliding rod, and the rotation of the other support plate can drive the second gear to rotate by setting the second sliding rod, thereby realizing the linkage between the two support plates.

[0010] Optionally, the support plate has a sliding connection portion protruding along its thickness direction, and the sliding hole is formed in the sliding connection portion.

[0011] In the above scheme, the sliding connection is provided to achieve the sliding connection between the support plate and the first sliding rod, and between the support plate and the second sliding rod, thereby realizing the meshing motion of the first gear and the second gear.

[0012] Optionally, the base has two spaced-apart mounting plates, with the first gear and the second gear both mounted between the two mounting plates.

[0013] In the above scheme, the installation position and movement space of the first gear and the second gear are provided by the setting of two mounting plates, and the space formed between the two mounting plates allows the first gear and the second gear to rotate.

[0014] Optionally, the linkage structure includes a fixedly connected linkage portion and a seam strip. One end of the linkage portion is rotatably connected to the support plate, and the other end of the linkage portion is rotatably connected to the base. When the two support plates are folded, the two seam strips are arranged at an acute angle to each other on their opposite sides.

[0015] In the above solution, the support plate and the base can be connected by the connecting rod, so that the support plate and the base can be linked together. The gap strip can be filled when the bending fixture is folded, and the folding part of the folding module can be covered.

[0016] Optionally, the connecting rod and the transmission mechanism are disposed at one end of the base in its length direction.

[0017] In the above scheme, the connecting rod and transmission mechanism only occupy one end of the bending fixture in the length direction, and the other end is not structurally obstructed. The folding part and part of the periphery of the folding module are exposed, which makes it convenient to observe the folding module.

[0018] Optionally, the support plate has a first hinge portion protruding from it, the base has a second hinge portion protruding from it, and the two ends of the connecting rod are respectively hinged to the first hinge portion and the second hinge portion.

[0019] In the above solution, by setting a first hinge part on the support plate and a second hinge part on the base, a multi-bar mechanism is formed between the support plate and the base through the connecting rod part, the transmission chain is stable, and thus the folding and unfolding of the bending fixture is smoother.

[0020] Optionally, the support plate has a recess on the side near the connecting rod portion, and the first hinge portion is formed by a protrusion on the inner wall of the recess.

[0021] In the above scheme, the first hinge part is at least partially located in the recessed part, and there is sufficient space around the first hinge part to allow the connecting rod part to rotate so as to avoid interference with the support plate, and it does not occupy the thickness space of the support plate.

[0022] Optionally, the base includes a base plate, two second hinge portions fixed on the base plate, and a mounting plate for mounting the transmission mechanism, wherein the second hinge portions and the mounting plate are arranged along the length direction of the base plate.

[0023] In the above scheme, the positions of the two second hinge parts and the mounting plate are staggered to facilitate the layout of the two linkage structures and the transmission mechanism, so as to avoid structural interference.

[0024] Optionally, the base further includes a strip fixed to the substrate, the length direction of the strip being parallel to the rotation center axis of the support plate, and the strip being sandwiched between the two clamping strips when the two support plates are folded.

[0025] In the above solution, the strip design makes the seam strip more stable when the bending fixture is folded, reducing the swaying of the seam strip. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A three-dimensional structural diagram of the bending fixture provided in the embodiment of the present invention in its unfolded state;

[0028] Figure 2 for Figure 1 Enlarged view of the connecting rod structure and transmission mechanism;

[0029] Figure 3 An exploded view of the bending fixture provided in an embodiment of the present invention;

[0030] Figure 4 A three-dimensional structural diagram of the bending fixture provided in the embodiment of the present invention in a folded state;

[0031] Figure 5 This is a side view of the bending fixture provided in an embodiment of the present invention in a folded state.

[0032] The following are the labeling elements in the figure:

[0033] 10-Support plate; 11-First hinge part; 12-Sliding connection part; 121-Sliding hole; 13-Recessed part; 20-Base; 21-Base plate; 22-Second hinge part; 23-Mounting plate; 24-Strip part; 30-Transmission mechanism; 31-First gear; 311-First sliding rod; 32-Second gear; 321-Second sliding rod; 40-Linkage structure; 41-Linkage part; 42-Gap strip. Detailed Implementation

[0034] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0035] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0036] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] Foldable screen phones have a structure similar to hinges, allowing them to be bent. Before the folding module leaves the factory, the water droplet bending area needs to be observed, comparing the actual water droplet morphology with the simulated one. The displacement of each layer of the folding module can also be observed to evaluate the bending performance of the module material. During bending tests, the folding module can be placed on a bending fixture, which then bends the module. However, the current structure of bending fixtures needs improvement.

[0039] This invention proposes a bending fixture. The two support plates 10 of the bending fixture are connected by a transmission structure, which causes the two support plates 10 to rotate in linkage to simulate the bending motion of the folding module. A base 20 is provided between the two support plates 10. The support plates 10 and the base 20 are connected by a connecting rod structure 40. After the bending fixture is folded, an accommodating space is formed between the connecting rod structures 40. The folding part of the folding module is located in the accommodating space and will not affect the teardrop shape of the folding part of the folding module.

[0040] The bending fixture provided in the embodiments of the present invention will now be described. The bending fixture is used to bend a folding module, which includes a first part and a second part rotatably connected. When the folding module is unfolded, the first part and the second part are located on the same plane. When the folding module is folded, the first part and the second part are stacked. The function of the bending fixture is to cause the first part and the second part of the folding module to rotate relative to each other.

[0041] Please refer to the following: Figures 1 to 5The bending fixture includes a base 20, a transmission mechanism 30, two support plates 10, and two connecting rod structures 40. The two support plates 10 are used to support the first part and the second part of the folding module, respectively. The base 20 is located between the two support plates 10. The base 20 and the two support plates 10 are connected by the two connecting rod structures 40, and the two support plates 10 are folded or unfolded by relative rotation through the transmission mechanism 30. When the two support plates 10 are folded, an accommodating space is formed between the two connecting rod structures 40.

[0042] The support plate 10 is the main structure of the bending fixture. Two support plates 10 are used to support the first and second parts of the folding module, respectively. During use, the first part is fixed to one support plate 10, and the second part is fixed to the other support plate 10. The two support plates 10 rotate relative to each other, causing the first and second parts to rotate relative to each other. The support plate 10 is a plate-like structure, and its dimensions can be equal to, larger than, or smaller than the dimensions of the first and second parts of the folding module.

[0043] The transmission mechanism 30 is used to drive the connection between the two support plates 10, so that the two support plates 10 move in tandem, that is, one support plate 10 moves at the same time as the other support plate 10. Generally speaking, the movement of the two support plates 10 is a synchronous and opposite rotational movement, that is, the two support plates 10 rotate towards each other at the same time or rotate away from each other at the same time, similar to the folding and unfolding movement of the folding module.

[0044] The base 20 is located between the two support plates 10. When the bending fixture is in the flat state, the two support plates 10 and the base 20 are in the same plane. When the bending fixture is in the folded state, there needs to be a thickness space between the two support plates 10 to accommodate the folding module. By setting the base 20, the two support plates 10 can be spaced apart from each other. If the base 20 and the corresponding connecting rod structure 40 are not set, there will be no thickness space to accommodate the folding module after the two support plates 10 are folded.

[0045] There are two linkage structures 40. One linkage structure 40 connects the base 20 and one of the support plates 10, and the other linkage structure 40 connects the base 20 and the other support plate 10. When the two support plates 10 rotate relative to each other, the two linkage structures 40 also rotate. When the two support plates 10 are folded, that is, when the bending fixture is folded, the folding module also folds accordingly. The fold of the folding module is teardrop-shaped, and an accommodating space is formed between the two linkage structures 40 to avoid the teardrop-shaped structure at the fold of the folding module, providing sufficient clearance and observation space for the folding module.

[0046] In the folded state, the surfaces of the folded modules that are in close contact with each other are the inner side of the folded module, and the exposed surface with a larger area is the outer side of the folded module. The surface connecting the inner and outer sides is the periphery of the folded module. In the bending fixture provided by this invention, the base 20, connecting rod structure 40, transmission mechanism 30, etc., are all located on the outer side of the folded module, which does not obstruct the periphery of the folded module and therefore does not affect the observation of the water droplet morphology and interlayer displacement of the folded module.

[0047] The bending fixture in the above embodiment includes a base 20, a transmission mechanism 30, two support plates 10, and two connecting rod structures 40. The base 20 and the support plates 10 are connected by the connecting rod structures 40, and the two support plates 10 are connected by the transmission mechanism 30. When the two support plates 10 rotate relative to each other, the transmission mechanism 30 keeps the two support plates 10 linked together. Moreover, the support plates 10 can drive the connecting rod structures 40 to rotate, so that when the bending fixture is folded, an accommodating space is formed between the two connecting rod structures 40. The teardrop shape formed by the folding module placed on the bending fixture after folding is located between the two connecting rod structures 40, reserving space for the folded part of the folding module. In addition, the folding fixture does not obstruct the side of the folding module, making it convenient to observe the teardrop shape of the folding module and the displacement of each layer inside the module.

[0048] In some embodiments of the present invention, please refer to Figure 2 and Figure 3 The transmission mechanism 30 includes a first gear 31 and a second gear 32 that mesh with each other. Both the first gear 31 and the second gear 32 are rotatably mounted on the base 20. One support plate 10 is used to drive the first gear 31 to rotate, and the other support plate 10 is used to drive the second gear 32 to rotate. When the two support plates 10 rotate relative to each other to open or fold, they will respectively drive the first gear 31 and the second gear 32 to mesh with each other, so that the rotation of the two support plates 10 is smooth and they move synchronously in opposite directions.

[0049] By configuring the first gear 31 and the second gear 32, the two support plates 10 can move synchronously in opposite directions, similar to the movement of the first and second parts in the folding module. The two support plates 10 can always remain in close contact with the first and second parts. Furthermore, the gear structure has high structural strength and is not easily damaged during repeated meshing. At the same time, the first gear 31 and the second gear 32 do not occupy the peripheral space of the folding module and do not obstruct its perimeter, facilitating observation of the folding module.

[0050] The first gear 31 and the second gear 32 have the same linear velocity and rotate in opposite directions, thus enabling the two support plates 10 to move synchronously and in opposite directions.

[0051] In some embodiments, both the first gear 31 and the second gear 32 are spur gears.

[0052] In some embodiments, both the first gear 31 and the second gear 32 are bevel gears.

[0053] In other embodiments, polygonal linkages, sprocket mechanisms, pulley mechanisms, etc., can also be used to achieve synchronous and reverse movement of the two support plates 10.

[0054] In some embodiments of the present invention, please refer to Figures 1 to 3 A first sliding rod 311 is fixed to the outer side of the first gear 31, and a sliding hole 121 for the first sliding rod 311 to extend into is provided on one of the support plates 10; and / or, a second sliding rod 321 is fixed to the outer side of the second gear 32, and a sliding hole 121 for the second sliding rod 321 to extend into is provided on the other support plate 10.

[0055] The first sliding rod 311 is fixedly connected to the first gear 31. Understandably, the first sliding rod 311 extends from the outer wall of the first gear 31 in a direction away from the first gear 31. The first sliding rod 311 extends into the interior of the support plate 10. Thus, when the support plate 10 rotates, it drives the first gear 31 to rotate via the first sliding rod 311. Furthermore, since the first sliding rod 311 is slidably connected to the support plate 10, no jamming will occur between the support plate 10 and the first gear 31 when the support plate 10 drives the first gear 31 to rotate.

[0056] The second sliding rod 321 is fixedly connected to the second gear 32. Understandably, the second sliding rod 321 extends from the outer wall of the second gear 32 in a direction away from the second gear 32. The second sliding rod 321 extends into the interior of the support plate 10. Thus, when the support plate 10 rotates, it drives the second gear 32 to rotate via the second sliding rod 321. Furthermore, because the second sliding rod 321 is slidably connected to the support plate 10, no jamming occurs between the support plate 10 and the second gear 32 when the support plate 10 drives the second gear 32 to rotate.

[0057] By setting the first sliding rod 311, the rotation of one of the support plates 10 can drive the first gear 31 to rotate. By setting the second sliding rod 321, the rotation of the other support plate 10 can drive the second gear 32 to rotate, thereby realizing the linkage between the two support plates 10.

[0058] In some embodiments, the central axis of the first sliding rod 311 passes through the central axis of the first gear 31, so that the rotation central axis of the first gear 31 and the corresponding support plate 10 are coaxially arranged, so that the rotation of the support plate 10 is synchronized with the rotation of the first gear 31.

[0059] In some embodiments, the central axis of the second sliding rod 321 passes through the central axis of the second gear 32, so that the rotation central axis of the second gear 32 and the corresponding support plate 10 are coaxially arranged, so that the rotation of the support plate 10 is synchronized with the rotation of the second gear 32.

[0060] In some embodiments, the cross-sections of the first sliding rod 311 and the first sliding hole 121 are both circular or both are square.

[0061] In some embodiments, the cross-sections of the second sliding rod 321 and the second sliding hole 121 are both circular or both square.

[0062] In some embodiments of the present invention, please refer to Figure 3 The support plate 10 has a sliding connection portion 12 protruding along its thickness direction, and a sliding hole 121 is formed in the sliding connection portion 12. Since the sliding connection portion 12 is used to slide with the first sliding rod 311 and the second sliding rod 321, the sliding connection portion 12 is set on the side of the support plate 10 near the base 20. Therefore, the first sliding rod 311 and the second sliding rod 321 do not need to be set too long, which can also reduce the driving torque.

[0063] By setting the sliding connection part 12, the support plate 10 is slidably connected to the first sliding rod 311 and the second sliding rod 321, thereby realizing the meshing motion of the first gear 31 and the second gear 32.

[0064] In some embodiments, please refer to Figure 2 and Figure 3 The support plate 10 has a recess 13 on the side near the base 20. The recess 13 is open at least on the side near the gear, and the sliding connection part 12 is raised on the inner wall of the recess 13. The recess 13 provides more room for the sliding of the first sliding rod 311 and the second sliding rod 321, so as to avoid collision with other structures of the support plate 10.

[0065] Optionally, the sliding connection 12 may be a plate-like structure, and the sliding connection 12 is vertically disposed on the inner wall of the recess 13.

[0066] The first gear 31 and the second gear 32 mesh with each other, the first sliding rod 311 and the second sliding rod 321 can be symmetrically arranged, and the two sliding connecting parts 12 can also be symmetrically arranged.

[0067] In some embodiments of the present invention, please refer to Figure 2 and Figure 3The base 20 has two spaced-apart mounting plates 23, with the first gear 31 and the second gear 32 mounted between them. Both the first gear 31 and the second gear 32 are mounted on the base 20 via the mounting plates 23, and both can rotate on the mounting plates 23. Specifically, both ends of the gear shaft of the first gear 31 extend into the two mounting plates 23, allowing the first gear 31 to rotate on the base 20; both ends of the gear shaft of the second gear 32 extend into the two mounting plates 23, allowing the second gear 32 to rotate on the base 20.

[0068] The two mounting plates 23 provide mounting positions and movement space for the first gear 31 and the second gear 32, and the space formed between the two mounting plates 23 allows the first gear 31 and the second gear 32 to rotate.

[0069] In some embodiments, the base 20 includes a substrate 21 and two mounting plates 23 fixed on the substrate 21, the mounting plates 23 being arranged perpendicularly to the substrate 21.

[0070] In other embodiments of the present invention, the base 20 has an installation space with two opposing sidewalls spaced apart, the two ends of the gear shaft of the first gear 31 extending into the two opposing sidewalls respectively, and the two ends of the gear shaft of the second gear 32 extending into the two opposing sidewalls respectively.

[0071] In some embodiments of the present invention, please refer to Figures 1 to 3 The linkage structure 40 includes a fixedly connected linkage portion 41 and a seam strip 42. One end of the linkage portion 41 is rotatably connected to the support plate 10, and the other end is rotatably connected to the base 20. When the two support plates 10 are folded, the two seam strips 42 are set at acute angles to each other on their opposite sides. The linkage portion 41 connects the base 20 and the support plate 10, and the seam strip 42 is used to cover the teardrop structure of the folding module when it is folded. The support plate 10, the linkage portion 41, and the base 20 are rotatably connected in sequence to form a linkage mechanism. The rotation of the support plate 10 can drive the linkage portion 41 and the base 20 to move together. The acute angles between the two seam strips 42 create an accommodating space between them, avoiding and covering the folded part (teardrop structure) of the folding module.

[0072] The connecting rod 41 connects the support plate 10 and the base 20, allowing them to move together. The seam strip 42 fills the gap between the support plate 10 and the base 20 when the bending fixture is folded, thus covering the folding part of the folding module.

[0073] In some embodiments, the connecting rod 41 is elongated, and the two connection points between the connecting rod 41 and the base 20 and the support plate 10 are located at the two ends of the connecting rod 41, so as to minimize the space occupied by the connecting rod 41. After folding, the space between the base 20 and the support plate 10 is small, so reducing the size of the connecting rod 41 is of great significance.

[0074] In some embodiments, the support plate 10 has a rectangular structure. When the folding module is placed on the bending fixture, the length direction of the support plate 10 is the same as the length direction of the first part of the folding module, and the length direction of the seam strip 42 is the same as the length direction of the support plate 10, which can cover the folding part of the folding module. An accommodating space is formed between the two seam strips 42.

[0075] Optionally, the line connecting the two connection points of the connecting rod 41 with the base 20 and the support plate 10 is the length direction of the connecting rod, and the length direction of the seam strip 42 is perpendicular to the length direction of the connecting rod. In this way, the rotation axis of the connecting rod 41, the rotation axis of the support plate 10, the rotation axis of the first gear 31 and the second gear 32 are all parallel to the length direction of the seam strip 42. The connecting rod 41, the support plate 10, the first gear 31, the second gear 32, etc. can be set at one end of the seam strip 42 without obstructing the other end of the folding module. The water droplet morphology and displacement of each layer of the folding module can be observed from the end of the seam strip 42 away from the connecting rod 41.

[0076] In some embodiments of the present invention, please refer to Figure 2 and Figure 3 The connecting rod 41 and the transmission mechanism 30 are located at one end of the base 20 along its length. That is, the connecting rod 41 and the transmission mechanism 30 only occupy one end of the bending fixture along its length, and the other end is not structurally obstructed. The folding part and part of the periphery of the folding module are exposed, which facilitates the observation of the folding module.

[0077] In some embodiments of the present invention, please refer to Figures 1 to 3 The support plate 10 has a protruding first hinge portion 11, and the base 20 has a protruding second hinge portion 22. The two ends of the connecting rod portion 41 are respectively hinged to the first hinge portion 11 and the second hinge portion 22. The support plate 10, the first hinge portion 11, the connecting rod portion 41, the second hinge portion 22, and the base 20 form a multi-bar mechanism. When the support plate 10 rotates, the first hinge portion 11, the connecting rod portion 41, and the second hinge portion 22 rotate accordingly, realizing the linkage between the support plate 10 and the base 20.

[0078] By providing a first hinge portion 11 on the support plate 10 and a second hinge portion 22 on the base 20, a multi-bar mechanism is formed between the support plate 10 and the base 20 through the connecting rod portion 41, which stabilizes the transmission chain and makes the folding and unfolding of the bending fixture smoother.

[0079] Taking the first gear 31, support plate 10, connecting rod structure 40 and base 20 as one of the transmission chains, the support plate 10 rotates around the rotation center axis of the first gear 31, which is the first rotating shaft. The hinge axis between the first hinge part 11 and the connecting rod structure 40 is the second rotating shaft, and the hinge axis between the connecting rod structure 40 and the second hinge part 22 is the third rotating shaft. A first connecting rod is formed between the first rotating shaft and the second rotating shaft, and the first connecting rod is telescopic (the first gear 31 and the support plate 10 can slide relative to each other). A second connecting rod is formed between the second rotating shaft and the third rotating shaft. Both the first rotating shaft and the third rotating shaft are mounted on the base 20, and their relative positions remain unchanged.

[0080] In some embodiments, please refer to Figure 2 and Figure 3 The support plate 10 has a recess 13 on the side near the connecting rod portion 41, and a first hinge portion 11 is formed by protruding from the inner wall of the recess 13. The first hinge portion 11 is at least partially located within the recess 13, and there is sufficient space around the first hinge portion 11 for the connecting rod portion 41 to rotate so as not to interfere with the support plate 10, and it does not occupy the thickness space of the support plate 10.

[0081] Optionally, the recess 13 is located at the edge of the support plate 10, which facilitates the rotatable connection between the connecting rod 41 and the support plate 10 and the base 20. The side of the recess 13 closest to the base 20 (the side facing the width direction of the support plate 10) is open. When the bending fixture is unfolded, the side of the recess 13 facing upward (the side facing the thickness direction of the support plate 10) is open, which facilitates the installation of the connecting rod 41. The recess 13 can be a structure with openings on both sides.

[0082] Optionally, the recess 13 is located at the edge of the support plate 10, facilitating the rotatable connection between the connecting rod 41 and the support plate 10 and the base 20. The side of the recess 13 closest to the base 20 (the side facing the width direction of the support plate 10) is open. When the bending fixture is unfolded, the side of the recess 13 facing (the side facing the thickness direction of the support plate 10) is open, facilitating the installation of the connecting rod 41. The side of the recess 13 facing the length direction of the support plate 10 is open, so that the recess 13 is located at one corner of the support plate 10. The recess 13 has a three-sided opening structure, only obscuring the folding position of the folding module at one end in the length direction, while the other end is not obscured and can be observed.

[0083] In some embodiments of the present invention, please refer to Figure 2 and Figure 3The base 20 includes a base plate 21, two second hinge portions 22 fixed to the base plate 21, and a mounting plate 23 for mounting the transmission mechanism 30. Both the second hinge portions 22 and the mounting plate 23 are arranged along the length of the base plate 21. The base 20 is elongated, and the base plate 21 is the main structure of the base 20. The base plate 21 is also elongated and runs in the same direction as the base 20. The transmission mechanism 30 is mounted on the mounting plate 23. The transmission mechanism 30 is supported on the mounting plate 23 only by a shaft or other structure, yet it can still rotate relative to the mounting plate 23. The arrangement of the second hinge portions 22 and the mounting plate 23 along the length of the base plate 21 refers only to the arrangement of the two second hinge portions 22 and the mounting plate 23 along the length of the base plate 21. The order of arrangement is not limited; for example, they can be arranged in the order of second hinge portion 22, mounting plate 23, and second hinge portion 22, or in the order of mounting plate 23, second hinge portion 22, and second hinge portion 22.

[0084] The positions of the two second hinge parts 22 and the mounting plate 23 are staggered to facilitate the layout of the two connecting rod structures 40 and the transmission mechanism 30, so as to avoid structural interference.

[0085] In some embodiments, the transmission mechanism 30 is disposed near the edge of the bending fixture relative to the connecting rod portion 41, and the mounting plate 23, one of the second hinge portions 22, and the other second hinge portion 22 are arranged sequentially along the length direction of the base plate 21.

[0086] In some embodiments, the transmission mechanism 30 is disposed between two connecting rod portions 41, wherein one second hinge portion 22, the mounting plate 23 and the other second hinge portion 22 are arranged sequentially along the length direction of the substrate 21.

[0087] In some embodiments, the base 20 further includes a strip 24 fixed to the base plate 21. The length direction of the strip 24 is parallel to the rotation center axis of the support plate 10. When the two support plates 10 are folded, the strip 24 is sandwiched between the two connecting rods 41. The strip 24 is arranged along the length direction of the base 20. When the two support plates 10 are folded, that is, when the bending fixture is in the bent state, there are two clamping strips 42 on opposite sides of the strip 24. One side of the clamping strip 42 is close to the strip 24 in the width direction, and the other side of the clamping strip 42 is close to the support plate 10 in the width direction.

[0088] The strip 24 makes the seam strip 42 more stable when the bending fixture is in the folded state, reducing the shaking of the seam strip 42.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bending fixture for bending folding modules, characterized in that: The device includes a base, a transmission mechanism, two support plates, and two connecting rod structures. The two support plates support the first and second parts of the folding module, respectively. The base is located between the two support plates. The base and the two support plates are connected by the two connecting rod structures. The two support plates are folded or unfolded relative to each other by the transmission mechanism. When the two support plates are folded, a space is formed between the two connecting rod structures. Each connecting rod structure includes a fixedly connected connecting rod portion and a seam strip. One end of the connecting rod portion is rotatably connected to the support plate, and the other end of the connecting rod portion is rotatably connected to the base. When the two support plates are folded, the two sides of the two seam strips facing each other are set at an acute angle. A first hinge portion is raised on the support plate, and a second hinge portion is raised on the base. The two ends of the connecting rod portion are respectively hinged to the first hinge portion and the second hinge portion.

2. The bending fixture as described in claim 1, characterized in that: The transmission mechanism includes a first gear and a second gear that mesh with each other. Both the first gear and the second gear are rotatably mounted on the base. One of the support plates is used to drive the first gear to rotate, and the other support plate is used to drive the second gear to rotate.

3. The bending fixture as described in claim 2, characterized in that: A first sliding rod is fixed to the outer side of the first gear, and one of the support plates has a sliding hole into which the first sliding rod extends; and / or, a second sliding rod is fixed to the outer side of the second gear, and the other support plate has a sliding hole into which the second sliding rod extends.

4. The bending fixture as described in claim 3, characterized in that: The support plate has a sliding connection portion protruding along its thickness direction, and the sliding hole is formed in the sliding connection portion.

5. The bending fixture as described in claim 2, characterized in that: The base has two spaced-apart mounting plates, and the first gear and the second gear are both mounted between the two mounting plates.

6. The bending fixture according to any one of claims 1-5, characterized in that: The connecting rod and the transmission mechanism are located at one end of the base along its length.

7. The bending fixture as described in claim 6, characterized in that: The support plate has a recessed portion on the side near the connecting rod portion, and the first hinge portion is formed by a protrusion on the inner wall of the recessed portion.

8. The bending fixture as described in claim 6, characterized in that: The base includes a base plate, two second hinge portions fixed on the base plate, and a mounting plate for mounting the transmission mechanism. The second hinge portions and the mounting plate are arranged along the length direction of the base plate.

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