Composite material bent pipe rotating tool

Abstract

The utility model relates to the technical field of tools, in particular to a composite material bent pipe rotating tool. In order to solve the problems of complex structure, poor dimensional stability, low production efficiency, difficult demolding in machining molding after the outer layer of a core mold is paved, and increase of production cost and production period of the combined mold, the utility model provides the following technical scheme: the combined mold comprises a core mold, and two ends of the core mold are respectively and fixedly connected with a fixed plate; the baffles are arranged at the two ends of the core mold, connecting plates are installed on the sides, away from the core mold, of the baffles, and rotating shafts are fixedly connected to the side faces of the connecting plates; and the two locking mechanisms are arranged at the two ends of the core mold correspondingly and used for locking the baffles and the connecting plates. According to the utility model, the die structure and the production process can be simplified, the production efficiency is improved, the cost is reduced, the dimensional stability and applicability of products are enhanced, and the high-efficiency production and wide application of composite material bent pipes in multiple industries are further promoted.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology, and in particular to a composite material pipe bending rotary tooling. Background Technology

[0002] In the field of composite material processing, composite material bends are widely used in aerospace, petrochemical, and energy industries due to their excellent physicochemical properties. Currently, the forming processes for composite material bends mainly employ two methods: compression molding with combined molds and machining after applying a core mold outer layer. However, both of these traditional forming processes have significant technical bottlenecks.

[0003] When using a combination mold compression molding process, the mold structure is extremely complex, requiring the precise matching of multiple components. This significantly increases the difficulty of mold design and manufacturing, limiting the process to the production of small composite material pipe bends. Furthermore, this process places extremely strict demands on layup design; even slight deviations can affect product quality. The resulting product also exhibits poor dimensional stability, making it difficult to meet high-precision requirements. In addition, the cumbersome mold assembly and disassembly process leads to low production efficiency, making it unsuitable for large-scale industrial production.

[0004] Another process, which involves machining the outer layer of the mandrel after application, is suitable for large products with strict dimensional requirements, but it also faces many problems in practical applications. Because the center of gravity of the mandrel changes continuously during rotation, a special fixture is needed to connect it to the mandrel to ensure normal operation. The common practice is to machine both ends of the mandrel to a horizontal position and align them with the center of gravity before placing it on a roller support or equipment. However, this structure makes the subsequent demolding process extremely difficult, requiring specialized demolding equipment. This undoubtedly increases production costs and time, reduces production efficiency, and limits the further promotion and application of this process. Therefore, this invention proposes a composite material bending pipe rotation fixture. Utility Model Content

[0005] The purpose of this invention is to address the problems in the background technology of complex structure, poor dimensional stability, and low production efficiency of composite mold compression molding, and the difficulties in demolding, increased production costs and production cycle caused by mechanical processing after the outer layer of the core mold is laid. The invention proposes a composite material pipe bending rotary tooling.

[0006] The technical solution of this utility model is as follows: a composite material pipe bending rotary tooling, including a mandrel, with fixed plates fixedly connected to both ends of the mandrel; baffles disposed at both ends of the mandrel, with connecting plates installed on the side of the baffles away from the mandrel, and rotating shafts fixedly connected to the sides of the connecting plates; and two sets of locking mechanisms, which are respectively disposed at both ends of the mandrel for locking the baffles and the connecting plates.

[0007] Optionally, the fixing plate is fixedly connected to a plurality of first positioning posts on the side away from the core mold, and the baffle plate is provided with first positioning holes corresponding to the first positioning posts.

[0008] Optionally, the baffle is fixedly connected to a plurality of second positioning posts on the side away from the core mold, and the connecting plate is provided with second positioning holes corresponding to the second positioning posts.

[0009] Optionally, the locking mechanism includes a fixed post fixedly connected to the side of the fixed plate away from the core mold, the fixed post passing through the baffle, a movable plate slidably connected in the fixed post, and multiple sets of pressure rods fixedly connected to both sides of the movable plate, the multiple sets of pressure rods slidingly engaging with the fixed post.

[0010] Optionally, the locking mechanism further includes a threaded rod fixedly connected to the side of the movable plate away from the core mold. The threaded rod movably passes through the fixed column and is threadedly connected to a threaded sleeve. A positioning ring is fixedly connected to the outer ring of the threaded sleeve. A fixing ring is provided on the outer ring of the positioning ring. The fixing ring has an L-shaped cross-section and is fixedly connected to the end of the fixed column away from the fixed plate.

[0011] Optionally, a connecting ring is fixedly connected to the end of the threaded sleeve away from the fixed post, and a rotating tube is installed on the side of the connecting ring away from the threaded sleeve. The rotating tube has an outer square and inner circular structure, and the inner diameter of the rotating tube is larger than the diameter of the threaded rod.

[0012] Optionally, the connecting plate is provided with a slot corresponding to the position of the fixing post.

[0013] Optionally, it also includes two sets of center of gravity adjustment components installed at both ends of the core mold. The center of gravity adjustment components are used to adjust the center of gravity. The center of gravity adjustment components include an adjustment rod that is slidably connected to the position of the fixed plate. A counterweight is fixedly connected to one end of the adjustment rod in the core mold. A limit sleeve is fixedly connected to the outer ring of the adjustment rod, and the limit sleeve is located inside the core mold.

[0014] Optionally, the center of mass adjustment assembly further includes a fixing seat mounted on the core mold and the fixing plate. The baffle has through holes at positions corresponding to the adjusting rod and the fixing seat. The fixing seat is threaded with bolts, and the adjusting rod has positioning grooves corresponding to the bolts.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] This utility model achieves precise positioning and installation of each component by using the first positioning post on the fixed plate to cooperate with the first positioning hole of the baffle, and the second positioning post on the baffle to cooperate with the second positioning hole of the connecting plate. The threaded sleeve, rotating tube and other structures in the locking mechanism make it easy to use a wrench to quickly fix and disassemble the baffle and connecting plate. Compared with the complex mold combination and demolding process in the traditional process, it greatly simplifies the operation steps, significantly improves the assembly and disassembly efficiency in the composite material bending tube forming process, and shortens the production cycle.

[0017] Furthermore, by setting up a center of gravity adjustment component, the mandrel can be flexibly adjusted according to the changes in the center of gravity caused by the attachment of different materials of the bending pipe raw materials. The adjustment rod drives the counterweight to move, and with the locking of the bolt and the positioning groove and the assistance of the scale line, the center of gravity of the mandrel can be precisely controlled, avoiding the forming problem caused by the eccentric rotation of the mandrel. This design not only solves the problem of mandrel eccentricity that is difficult to handle in traditional processes, but also enhances the applicability of the rotary tooling to the production of composite pipes of different materials and specifications, effectively ensuring the forming quality of the product.

[0018] In summary, this utility model can simplify the mold structure and production process, improve production efficiency, reduce costs, and enhance the dimensional stability and applicability of products, thereby promoting the efficient production and widespread application of composite material bent pipes in multiple industries. Attached Figure Description

[0019] Figure 1 A schematic diagram of a composite material pipe bending rotary tool is provided.

[0020] Figure 2 This is a schematic diagram of the rotating shaft;

[0021] Figure 3 yes Figure 1 A schematic diagram of the cross-sectional structure;

[0022] Figure 4 yes Figure 2 Enlarged view of point A in the middle;

[0023] Figure 5 yes Figure 3 Enlarged diagram of point B in the middle.

[0024] Figure label:

[0025] 1. Core mold; 11. Fixing plate; 12. First positioning post;

[0026] 2. Baffle; 21. First positioning hole; 22. Second positioning pin; 23. Through hole;

[0027] 3. Connecting plate; 31. Second positioning hole; 32. Slot;

[0028] 4. Rotation axis;

[0029] 5. Locking mechanism; 51. Fixed column; 52. Moving plate; 53. Pressure rod; 54. Threaded rod; 55. Threaded sleeve; 56. Positioning ring; 57. Fixed ring; 58. Connecting ring; 59. Rotating tube;

[0030] 6. Center of gravity adjustment assembly; 61. Adjusting rod; 62. Counterweight; 63. Limiting sleeve; 64. Fixing base; 65. Bolt; 66. Positioning groove. Detailed Implementation

[0031] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0032] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0033] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Example 1

[0037] like Figure 1 , Figure 3 and Figure 5 As shown, the present invention proposes a composite material tube bending rotary tooling, including a core mold 1, which is used to form the inner surface of the product, and fixed plates 11 are fixedly connected to both ends of the core mold 1.

[0038] For further details, please refer to Figure 2 and Figure 4 The aforementioned rotating fixture also includes baffles 2 disposed at both ends of the core mold 1, which are used to position the product length. A connecting plate 3 is installed on the side of the baffle 2 away from the core mold 1, and a rotating shaft 4 is fixedly connected to the side of the connecting plate 3. The rotating shaft 4 is fixed to both ends of the core mold 1 via the connecting plate 3. By placing the two sets of rotating shafts 4 on a roller bracket or a winding device, the core mold 1 can be rotated. Multiple sets of first positioning posts 12 are fixedly connected to the side of the fixing plate 11 away from the core mold 1. The baffle 2 has first positioning holes 21 corresponding to the first positioning posts 12. The positioning effect of the first positioning posts 12 and the first positioning holes 21 ensures that the baffle 2 is accurately positioned each time. Multiple sets of second positioning posts 22 are fixedly connected to the side of the baffle 2 away from the core mold 1. The connecting plate 3 has second positioning holes 31 corresponding to the second positioning posts 22. The positioning effect of the second positioning posts 22 and the second positioning holes 31 ensures that the connecting plate 3 is accurately positioned.

[0039] Furthermore, such as Figure 4 and Figure 5As shown, the aforementioned rotating fixture also includes two sets of locking mechanisms 5, which are respectively disposed at both ends of the core mold 1 to lock the baffle 2 and the connecting plate 3. Each locking mechanism 5 includes a fixed post 51 fixedly connected to the side of the fixed plate 11 away from the core mold 1. The fixed post 51 passes through the baffle 2 and is fixed in position. A movable plate 52 is slidably connected to the fixed post 51. Multiple sets of pressure rods 53 are fixedly connected to both sides of the movable plate 52. These pressure rods 53 are slidably engaged with the fixed post 51. The movable plate 52 moves smoothly under the limiting action of the pressure rods 53. The pressure rods 53 move synchronously with the movable plate 52, and after movement, they press to fix the baffle 2 and the connecting plate 3 to the side of the fixed plate 11. The locking mechanism 5 also includes a threaded rod 54 fixedly connected to the side of the movable plate 52 away from the core mold 1. When the threaded rod 54 moves, it drives the multiple sets of pressure rods 53 to move via the movable plate 52. The threaded rod 54 movably passes through the fixed post 51 and is threadedly connected to a threaded sleeve 55. When the threaded sleeve 55 rotates, it drives the threaded rod 54 to move along its own length. A positioning ring 56 is fixedly connected to the outer ring of the threaded sleeve 55, and a fixing ring 57 is provided on the outer ring of the positioning ring 56. The fixing ring 57 has an L-shaped cross-section and is fixedly connected to the end of the fixed post 51 away from the fixed plate 11. The fixed ring 57 and the positioning ring 56 cooperate to keep the threaded sleeve 55 in its original position and allow it to rotate. A connecting ring 58 is fixedly connected to the end of the threaded sleeve 55 away from the fixed post 51. A rotating tube 59 is installed on the side of the connecting ring 58 away from the threaded sleeve 55. The rotating tube 59 has a square outer and circular inner structure, and its inner diameter is larger than the diameter of the threaded rod 54. The rotating tube 59 facilitates the rotation of the threaded sleeve 55 using tools such as wrenches. The connecting plate 3 has a slot 32 corresponding to the position of the fixed post 51, which facilitates the connecting plate 3 to pass over the pressure rod 53 and lock onto the fixed post 51.

[0040] In this embodiment, during assembly, the first positioning hole 21 on the baffle 2 is aligned with the first positioning post 12 installed on the side of the fixing plate 11, and the baffle 2 is attached to the side of the fixing plate 11. Then, the connecting plate 3 is secured to the fixing post 51 through the slot 32, and the second positioning hole 31 on the connecting plate 3 is aligned with the second positioning post 22 on the side of the baffle 2, and the connecting plate 3 is attached to the side of the baffle 2. At this time, the rotating tube 59 is rotated with a wrench, and the rotating tube 59 drives the threaded sleeve 55 to rotate through the connecting ring 58. The threaded sleeve 55 maintains its original position and rotates under the limiting action of the positioning ring 56 and the fixing ring 57. At the same time, when the threaded sleeve 55 rotates, it drives the threaded rod 54 to move along its own length direction. At this time, the threaded rod 54 slides in the fixing post 51 with the moving plate 52 and the pressure rod 53. Multiple sets of pressure rods 53 approach the connecting plate 3 and press and fix the baffle 2 and the connecting plate 3 to the side of the fixing plate 11. Then, the two sets of rotating shafts 4 are placed on the roller bracket or the winding equipment to realize the rotation of the core mold 1.

[0041] Example 2

[0042] like Figure 4 and Figure 5 As shown, based on Embodiment 1, it further includes two sets of center-of-gravity adjustment components 6 respectively installed at both ends of the core mold 1. The center-of-gravity adjustment components 6 are used to adjust the center of gravity of the core mold 1, which is convenient for addressing changes in the center of gravity caused by the attachment of different material bending pipe raw materials to the outside of the core mold 1. The center-of-gravity adjustment component 6 includes an adjustment rod 61 slidably connected to the fixed plate 11. One end of the adjustment rod 61 located in the core mold 1 is fixedly connected to a counterweight 62. When the adjustment rod 61 moves, it drives the counterweight 62 to move synchronously, thereby adjusting the overall center of gravity of the core mold 1. A limiting sleeve 63 is fixedly connected to the outer ring of the adjustment rod 61. The limiting sleeve 63 is located inside the core mold 1 and prevents the adjustment rod 61 from extending too far out of the core mold 1. The center-of-gravity adjustment component 6 also includes a fixing seat 64 installed on the core mold 1 and the fixed plate 11. The baffle 2 has through holes 23 at corresponding positions of the adjustment rod 61 and the fixing seat 64, which facilitates the guidance of the baffle 2 and the fixing seat 64 to the core mold 1 and the fixed plate 11. A bolt 65 is threaded onto the fixed base 64. A positioning groove 66 corresponding to the bolt 65 is provided on the adjusting rod 61. The contact surface between the positioning groove 66 and the bolt 65 is rough, which increases friction after the bolt 65 presses against the positioning groove 66, preventing the adjusting rod 61 from moving and its center of gravity from changing during rotation. Additionally, a scale line is provided inside the positioning groove 66 to facilitate adjusting the position of the adjusting rod 61 for different raw materials.

[0043] In this embodiment, when using different materials to make the bent pipe, the bolt 65 is rotated away from the adjusting rod 61, and then the adjusting rod 61 is moved to adjust the center of gravity of the mandrel 1. The accuracy of the center of gravity adjustment is ensured by observing the scale in the positioning groove 66. After the adjustment is completed, the bolt 65 is rotated so that one end presses against the positioning groove 66 to lock the position of the adjusting rod 61.

[0044] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A composite material pipe bending rotary tool, characterized in that, include: Core mold (1), with fixing plates (11) fixedly connected to both ends of the core mold (1); The baffles (2) are set at both ends of the core mold (1). A connecting plate (3) is installed on the side of the baffle (2) away from the core mold (1). A rotating shaft (4) is fixedly connected to the side of the connecting plate (3). Two sets of locking mechanisms (5) are respectively set at both ends of the core mold (1) to lock the baffle (2) and the connecting plate (3).

2. The composite material pipe bending rotary fixture according to claim 1, characterized in that, The fixing plate (11) is fixedly connected to a plurality of first positioning posts (12) on the side away from the core mold (1), and the baffle (2) is provided with first positioning holes (21) corresponding to the first positioning posts (12).

3. The composite material pipe bending rotary fixture according to claim 2, characterized in that, The baffle (2) is fixedly connected to a plurality of second positioning posts (22) on the side away from the core mold (1), and the connecting plate (3) is provided with a second positioning hole (31) corresponding to the second positioning post (22).

4. The composite material pipe bending rotary fixture according to claim 3, characterized in that, The locking mechanism (5) includes a fixed post (51) fixedly connected to the fixed plate (11) on the side away from the core mold (1). The fixed post (51) passes through the baffle (2). A movable plate (52) is slidably connected in the fixed post (51). Multiple sets of pressure rods (53) are fixedly connected to both sides of the movable plate (52). The multiple sets of pressure rods (53) are slidably engaged with the fixed post (51).

5. A composite material pipe bending rotary fixture according to claim 4, characterized in that, The locking mechanism (5) further includes a threaded rod (54) fixedly connected to the side of the movable plate (52) away from the core mold (1). The threaded rod (54) movably passes through the fixed post (51) and is threadedly connected to a threaded sleeve (55). A positioning ring (56) is fixedly connected to the outer ring of the threaded sleeve (55). A fixing ring (57) is provided on the outer ring of the positioning ring (56). The fixing ring (57) has an L-shaped cross-section and is fixedly connected to the end of the fixed post (51) away from the fixed plate (11).

6. The composite material pipe bending rotary fixture according to claim 5, characterized in that, A connecting ring (58) is fixedly connected to the end of the threaded sleeve (55) away from the fixed post (51). A rotating tube (59) is installed on the side of the connecting ring (58) away from the threaded sleeve (55). The rotating tube (59) has an outer square and inner circle structure. The inner diameter of the rotating tube (59) is larger than the diameter of the threaded rod (54).

7. A composite material pipe bending rotary fixture according to claim 6, characterized in that, The connecting plate (3) is provided with a slot (32) corresponding to the position of the fixing post (51).

8. A composite material pipe bending rotary fixture according to claim 7, characterized in that, It also includes two sets of center of mass adjustment components (6) respectively installed at both ends of the core mold (1). The center of mass adjustment components (6) are used to adjust the center of mass. The center of mass adjustment components (6) include an adjustment rod (61) slidably connected to the position of the fixed plate (11). One end of the adjustment rod (61) located in the core mold (1) is fixedly connected to a counterweight (62). The outer ring of the adjustment rod (61) is fixedly connected to a limit sleeve (63). The limit sleeve (63) is located inside the core mold (1).

9. A composite material pipe bending rotary fixture according to claim 8, characterized in that, The centroid adjustment assembly (6) also includes a fixing seat (64) installed on the core mold (1) and the fixing plate (11). The baffle (2) has through holes (23) at positions corresponding to the adjusting rod (61) and the fixing seat (64). The fixing seat (64) is threaded with a bolt (65). The adjusting rod (61) has a positioning groove (66) corresponding to the bolt (65).

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