Composite material preform torsion shape control device and control method and application thereof
By designing a torsion control device for composite material preforms, the problems of time and accuracy in observing the internal structure of the preforms after torsion deformation were solved, enabling rapid and accurate microstructure testing and avoiding the influence of resin and sizing powder.
Patent Information
- Application Number
- CN202511625878.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-07
- Publication Date
- 2026-03-10
AI Technical Summary
In the current technology for the molding process of composite engine blades, the observation of the internal structure of the preform after torsional deformation is affected by time delay and uneven shaping powder, resulting in insufficient accuracy of microstructure scanning tests.
A torsion control device for composite material preforms was designed, comprising a first clamping group, a second clamping group, and a bottom frame. The device achieves precise torsion of the preforms through a dial and a torsion rod, and reduces friction by using a sliding sleeve and ball bearings, allowing direct observation of the internal structure after torsion.
It enables rapid microstructure testing without waiting for the material to set, avoiding interference from resin and setting powder, and improving the accuracy of scanning and the lightweight and compact nature of the device.
Smart Images
Figure CN121625432A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of advanced composite material manufacturing, specifically relating to a torsion control device for composite material preforms, its control method, and its application. Background Technology
[0002] Fiber-reinforced composites are widely used in aerospace and other fields due to their lightweight and high strength. The geometry of the fiber preform plays a decisive role in the mechanical properties of the composite material. However, torsional deformation of the preform is unavoidable during the molding process of complex curved surface components, such as composite engine blades. Studying the torsional deformation mechanism of the preform and accurately constructing the internal fiber structure of the preform after torsional deformation is of great significance for the structural design and performance evaluation of composite materials. Current molding control methods mainly involve pouring resin or applying molding powder after torsional deformation, followed by micro-CT scanning to observe the internal structure of the preform after torsional deformation. However, resin pouring requires time to set and suffers from problems such as uneven application of molding powder. More importantly, it affects the accuracy of subsequent microstructure scanning tests. Therefore, in order to more scientifically and accurately characterize the changes in the internal microstructure of the preform after torsional deformation, it is necessary to design a preform torsional deformation control fixture to directly send the torsional deformed preform into the chamber for observation, so as to obtain the most accurate internal fiber structure. Summary of the Invention
[0003] To address the shortcomings of existing technologies, the purpose of this invention is to provide a torsion control device for composite material preforms to facilitate subsequent microstructure characterization and testing.
[0004] Another object of the present invention is to provide a control method for the above-mentioned composite material preform torsion control device.
[0005] Another object of the present invention is to provide the use of the above-mentioned composite material preform torsion control device in characterizing the changes in the internal microstructure of the preform after torsion.
[0006] The objective of this invention is achieved through the following technical solutions.
[0007] A composite material preform torsion control device includes: a first clamping group, a second clamping group, and a bottom frame. The first clamping group includes: a first fixing plate, a first clamping plate, and a second clamping plate. The first clamping plate is disposed directly above the second clamping plate and is parallel to and spaced apart from the second clamping plate. Both the first clamping plate and the second clamping plate are fixedly mounted to the first fixing plate. The first clamping plate and the second clamping plate are fixedly mounted and are used to clamp one side of the preform between them.
[0008] The second clamping assembly includes: a second fixed plate, a third clamping plate, and a fourth clamping plate. The surface of the fourth clamping plate is parallel to the horizontal plane. The third clamping plate is positioned directly above the fourth clamping plate and is parallel to and spaced apart from the fourth clamping plate. Both the third and fourth clamping plates are fixedly mounted to the second fixed plate. The third and fourth clamping plates are fixedly mounted and are used to clamp the other side of the precast body.
[0009] The bottom frame includes: a first frame beam, a second frame beam, a first guide slide rod, and a second guide slide rod. The first frame beam and the second frame beam are arranged in the transverse direction, and the first guide slide rod and the second guide slide rod are arranged in the longitudinal direction and are parallel and spaced apart. One end of the first guide slide rod and one end of the second guide slide rod are both fixed to the first frame beam, and the other end of the first guide slide rod and the other end of the second guide slide rod are both fixed to the second frame beam.
[0010] The first fixed plate is mounted on the first frame beam and can rotate on the first frame beam; the second fixed plate is mounted on the first guide slide rod and the second guide slide rod and is used to slide along the length direction of the first guide slide rod and the second guide slide rod.
[0011] Using the transverse centerline of the third and fourth clamping plates in the second clamping group as the standard line, the axis of rotation of the first fixing plate on the first frame beam and the standard line are on the same straight line.
[0012] In the above technical solution, a through hole is provided on the first frame beam, the length direction of the through hole is parallel to the first guide slide rod, and a scale is provided on the first frame beam outside the through hole. The scale includes: a number of scale lines are arranged at intervals along the circumferential direction outside the through hole, and each scale line corresponds to a preset torsion angle of the precast body.
[0013] A torsion rod is fixedly mounted on the first fixed plate. The torsion rod passes through a through hole. A torsion bearing is installed on the torsion rod located inside the through hole. A pointer is fixedly mounted on the torsion rod located outside the through hole. The pointer is set radially along the through hole and is used to point to the dial.
[0014] In the above technical solution, a torsion knob is fixedly installed at the end of the torsion bar away from the second frame beam. The torsion knob is used to drive the torsion bar to rotate around its axis under the action of external force, and then drive the precast body to rotate synchronously through the first clamping group.
[0015] In the above technical solution, a fixing screw perpendicular to the length of the through hole passes through the first frame beam. One end of the fixing screw extends into the through hole to lock the torsion rod to prevent it from rotating, that is, to fix the precast body after it has been torsioned to a preset torsion angle.
[0016] In the above technical solution, a sliding sleeve is fitted on each of the first guide slide rod and the second guide slide rod, and the second fixing plate is fixed to the two sliding sleeves for sliding along the length direction of the first guide slide rod and the second guide slide rod;
[0017] In the above technical solution, a fixing screw passes through each sliding sleeve to lock the sliding sleeve onto the first guide slide rod or the second guide slide rod.
[0018] In the above technical solution, the inner wall of the sliding sleeve is provided with several slots, and several balls are embedded in the slots to reduce the friction when the sliding sleeve slides along the length direction of the first guide slide rod and the second guide slide rod.
[0019] The control method for the aforementioned composite material preform torsion control device includes:
[0020] Step 1: Place one side of the preform between the first clamping plate and the second clamping plate, so that the first clamping plate and the second clamping plate clamp the preform on that side; slide the second clamping group close to the first clamping plate and the second clamping plate to place the other side of the preform between the third clamping plate and the fourth clamping plate in the second clamping group, so that the third clamping plate and the fourth clamping plate clamp the preform on that side; keep the surfaces of the first clamping plate, the second clamping plate, the third clamping plate, and the fourth clamping plate parallel to the horizontal plane;
[0021] Step 2: Rotate the first fixed plate on the first frame beam by a preset torsion angle and fix it at the preset torsion angle. During the rotation of the first fixed plate on the first frame beam, the precast body drives the second fixed plate to slide toward the first fixed plate. When the first fixed plate rotates on the first frame beam to the preset torsion angle, the second fixed plate stops sliding.
[0022] The above-mentioned composite material preform torsion control device is used to characterize the changes in the internal microstructure of the preform after torsion.
[0023] The technical effects of this invention are as follows:
[0024] Compared to current methods of pouring resin or applying setting powder after torsion deformation in mechanical instruments, the composite material preform torsion control device of this invention facilitates subsequent microstructure testing, eliminates the waiting time for setting, and avoids problems such as unclear scanning caused by the addition of resin or setting powder altering the original structure. The design of the control tooling is also lighter, more sophisticated, and more scientific. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the torsion control device for composite material preforms.
[0026] Figure 2 A schematic diagram of the bottom frame in the torsion control device for composite material preforms;
[0027] Figure 3 This is a schematic diagram of the torsion control device for composite material preforms.
[0028] Figure 4 (a) A three-dimensional structural diagram and (b) a side view of the first clamping group in the torsion control device for composite material preforms;
[0029] Figure 5 (a) A three-dimensional structural diagram and (b) a side view of the second clamping group structure in the composite preform torsion control device;
[0030] Figure 6 This is a schematic diagram of the sliding sleeve in the torsion control device for composite material preforms.
[0031] Wherein, 101: first clamping plate, 102: second clamping plate, 103: third clamping plate, 104: fourth clamping plate, 201: first fixing plate, 202: second fixing plate, 3: precast body, 401: first frame beam, 402: second frame beam, 501: first guide slide rod, 502: second guide slide rod, 6: torsion knob, 7: torsion bearing, 8: pointer, 9: dial, 1001: sliding sleeve, 1002: ball bearing, 11: torsion bar. Detailed Implementation
[0032] The present invention provides a detailed description of a composite material preform torsion control device in conjunction with the accompanying drawings.
[0033] Example 1
[0034] like Figure 1 As shown, a composite preform torsion control device includes: a first clamping group, a second clamping group, and a bottom frame. The first clamping group includes: a first fixing plate 201, a first clamping plate 101, and a second clamping plate 102. The first clamping plate 101 is disposed directly above the second clamping plate 102 and is parallel to and spaced apart from the second clamping plate 102. Both the first clamping plate 101 and the second clamping plate 102 are fixedly mounted to the first fixing plate 201. The first clamping plate 101 and the second clamping plate 102 are fixedly mounted and are used to clamp one side of the preform 3.
[0035] The second clamping assembly includes: a second fixing plate 202, a third clamping plate 103 and a fourth clamping plate 104. The surface of the fourth clamping plate 104 is parallel to the horizontal plane. The third clamping plate 103 is located directly above the fourth clamping plate 104 and is arranged parallel to and spaced apart from the fourth clamping plate 104. Both the third clamping plate 103 and the fourth clamping plate 104 are fixedly mounted to the second fixing plate 202. The third clamping plate 103 and the fourth clamping plate 104 are fixedly mounted and are used to clamp the other side of the precast body 3.
[0036] like Figure 2As shown, the bottom frame includes: a first frame beam 401, a second frame beam 402, a first guide slide rod 501, and a second guide slide rod 502. The first frame beam 401 and the second frame beam 402 are arranged in the transverse direction, and the first guide slide rod 501 and the second guide slide rod 502 are arranged in the longitudinal direction and are parallel and spaced apart. One end of the first guide slide rod 501 and one end of the second guide slide rod 502 are both fixed to the first frame beam 401, and the other end of the first guide slide rod 501 and the other end of the second guide slide rod 502 are both fixed to the second frame beam 402.
[0037] The first fixing plate 201 is mounted on the first frame beam 401 and can rotate on the first frame beam 401. The second fixing plate 202 is mounted on the first guide slide 501 and the second guide slide 502 and is used to slide along the length direction of the first guide slide 501 and the second guide slide 502.
[0038] Using the transverse centerline of the third clamping plate 103 and the fourth clamping plate 104 in the second clamping group as the standard line, the axis of rotation of the first fixing plate 201 on the first frame beam 401 and the standard line are on the same straight line.
[0039] The control method for the aforementioned composite material preform torsion control device includes the following steps:
[0040] Step 1, as follows Figure 3 As shown, one side of the preform 3 is placed between the first clamping plate 101 and the second clamping plate 102, so that the first clamping plate 101 and the second clamping plate 102 clamp the preform 3 on that side; the second clamping group is slid close to the first clamping plate 101 and the second clamping plate 102 to place the other side of the preform 3 between the third clamping plate 103 and the fourth clamping plate 104 in the second clamping group, so that the third clamping plate 103 and the fourth clamping plate 104 clamp the preform 3 on that side; the surfaces of the first clamping plate 101, the second clamping plate 102, the third clamping plate 103, and the fourth clamping plate 104 are kept parallel to the horizontal plane;
[0041] Step 2: Rotate the first fixed plate 201 on the first frame beam 401 by a preset torsion angle (for example, the preset torsion angle is 0°, 30°, 60° or 90°) and fix it at the preset torsion angle. During the rotation of the first fixed plate 201 on the first frame beam 401, the precast body 3 drives the second fixed plate 202 to slide toward the first fixed plate 201. When the first fixed plate 201 rotates on the first frame beam 401 to the preset torsion angle, the second fixed plate 202 stops sliding, that is, the precast body 3 no longer drives the second fixed plate 202 to slide toward the first fixed plate 201.
[0042] Example 2
[0043] A torsion control device for composite material preforms, based on Example 1, such as... Figure 2 As shown, the first frame beam 401 is provided with a through hole, the length direction of the through hole is parallel to the first guide slide rod 501, and a scale 9 is provided on the first frame beam 401 outside the through hole. The scale 9 includes: several scale lines are arranged at intervals along the circumferential direction outside the through hole, and each scale line corresponds to the preset torsion angle of the precast body 3.
[0044] like Figure 4 (a) and Figure 4 As shown in (b), a torsion bar 11 is fixedly mounted on the first fixed plate 201. The torsion bar 11 passes through a through hole, and a torsion bearing 7 is installed on the torsion bar 11 located inside the through hole to allow the first fixed plate 201 to rotate on the first frame beam 401. A pointer 8 is fixedly mounted on the torsion bar 11 located outside the through hole. The pointer 8 is arranged radially along the through hole and is used to point to the scale line of the dial 9. The pointer 8 can rotate synchronously with the torsion bar 11 to display the real-time torsion angle of the precast body 3.
[0045] A torsion knob 6 (with a diameter larger than that of the torsion bar 11) is fixedly installed at the end of the torsion bar 11 away from the second frame beam 402. The torsion knob 6 applies force to drive the torsion bar 11 to rotate around its axis under the action of external force, thereby driving the precast body 3 to rotate synchronously through the first clamping group.
[0046] A fixing screw perpendicular to the length of the through hole passes through the first frame beam 401. One end of the fixing screw extends into the through hole to lock the torsion rod 11 to prevent it from rotating, thus fixing the precast body 3 after it has been torsioned to the preset torsion angle. When the pointer 8 points to the scale line corresponding to the preset torsion angle, the torsion operation of the precast body 3 is completed, and the fixing screw is then tightened.
[0047] like Figure 5 of (a), Figure 5 As shown in (b), each of the first guide slide rod 501 and the second guide slide rod 502 is fitted with a sliding sleeve 1001 that can slide on it. The second fixing plate 202 is fixed to the two sliding sleeves 1001 and is used to slide along the length direction of the first guide slide rod 501 and the second guide slide rod 502. While the preform 3 is torsional deformed, the second fixing plate 202 slides along the length direction of the first guide slide rod 501 and the second guide slide rod 502 through the two sliding sleeves 1001.
[0048] Each sliding sleeve 1001 has a fixing screw passing through it to lock the sliding sleeve 1001 onto the first guide slide rod 501 or the second guide slide rod 502, that is, to fix the position of the sliding sleeve 1001 on the first guide slide rod 501 and the second guide slide rod 502. After the preform 3 reaches the preset torsion angle, tighten the fixing screw to fix the position of the sliding sleeve 1001 on the first guide slide rod 501 and the second guide slide rod 502, so as to control the shape of the preform 3 after torsion deformation.
[0049] In this embodiment, the first fixing plate 201 is perpendicular to the first clamping plate 101 and the second clamping plate 102, respectively, and the second fixing plate 202 is perpendicular to the third clamping plate 103 and the fourth clamping plate 104, respectively. The first clamping plate 101 and the second clamping plate 102 are fixed together by bolts and nuts, and the third clamping plate 103 and the fourth clamping plate 104 are fixed together by bolts and nuts. The bolts fixing the first clamping plate 101 and the second clamping plate 102 cannot pass through the precast body 3, and the bolts fixing the third clamping plate 103 and the fourth clamping plate 104 cannot pass through the precast body 3, that is, the precast body 3 cannot be too wide.
[0050] Example 3
[0051] like Figure 6 As shown, a composite material preform torsion control device, based on embodiment 2, has a plurality of slots provided on the inner wall of the sliding sleeve 1001, and a plurality of balls 1002 embedded in the slots, which are used to reduce the friction when the sliding sleeve 1001 slides along the length direction of the first guide slide rod 501 and the second guide slide rod 502.
[0052] The present invention has been described above by way of example. It should be noted that any simple modifications, alterations or other equivalent substitutions that can be made by those skilled in the art without creative effort without departing from the core of the present invention fall within the protection scope of the present invention.
Claims
1. A torsion control device for composite material preforms, characterized in that, The application relates to a preform body clamping device for a preform body (3) which is used for manufacturing a glass bottle by a glass blowing method. The preform body clamping device comprises a first clamping group, a second clamping group and a bottom frame. The first clamping group comprises a first fixed plate (201), a first clamping plate (101) and a second clamping plate (102). The first clamping plate (101) is arranged above the second clamping plate (102) and is arranged in parallel spacing with the second clamping plate (102). The first clamping plate (101) and the second clamping plate (102) are fixed to the first fixed plate (201). The second clamping group comprises a second fixed plate (202), a third clamping plate (103) and a fourth clamping plate (104).
2. The composite preform torsion control device of claim 1, wherein, The fourth clamping plate (104) is arranged in parallel spacing with the third clamping plate (103). The third clamping plate (103) and the fourth clamping plate (104) are fixed to the second fixed plate (202). The bottom frame comprises a first frame beam (401), a second frame beam (402), a first guide sliding rod (501) and a second guide sliding rod (502). The first frame beam (401) and the second frame beam (402) are arranged in a transverse direction. The first guide sliding rod (501) and the second guide sliding rod (502) are arranged in a longitudinal direction and are arranged in parallel spacing. One end of the first guide sliding rod (501) and one end of the second guide sliding rod (502) are fixed to the first frame beam (401). The other end of the first guide sliding rod (501) and the other end of the second guide sliding rod (502) are fixed to the second frame beam (402). The first fixed plate (201) is arranged on the first frame beam (401) and can rotate on the first frame beam (401). The second fixed plate (202) is arranged on the first guide sliding rod (501) and the second guide sliding rod (502) and can slide along the length direction of the first guide sliding rod (501) and the second guide sliding rod (502). The axis of rotation of the first fixed plate (201) on the first frame beam (401) is arranged on the same line with the standard line of the third clamping plate (103) and the fourth clamping plate (104) in the second clamping group. A through hole is arranged on the first frame beam (401). The length direction of the through hole is parallel to the first guide sliding rod (501). A scale disc (9) is arranged on the first frame beam (401) outside the through hole. The scale disc (9) comprises a plurality of scale lines which are arranged in a circumferential direction and are arranged in spacing. Each scale line corresponds to a preset torsion angle of the preform body (3). A torsion rod (11) is fixed to the first fixed plate (201). The torsion rod (11) passes through the through hole. A torsion bearing (7) is arranged on the torsion rod (11) in the through hole. A pointer (8) is fixed to the torsion rod (11) outside the through hole. The pointer (8) is arranged in a radial direction of the through hole. The pointer (8) is used for pointing to the scale disc (9).
3. The composite preform torsion control device of claim 2, wherein, A torsion knob (6) is fixed to the end of the torsion bar (11) away from the second frame beam (402).
4. The composite preform torsion control device of claim 3, wherein, A fixing screw is passed through the first frame beam (401) in a direction perpendicular to the length direction of the through hole, and one end of the fixing screw extends into the through hole to lock the torsion bar (11) to prevent it from rotating.
5. The composite preform torsion control device of claim 4, wherein, A sliding sleeve (1001) capable of sliding thereon is sleeved on each of the first guide sliding rod (501) and the second guide sliding rod (502), and the second fixed plate (202) is fixed to the two sliding sleeves (1001) to slide along the length direction of the first guide sliding rod (501) and the second guide sliding rod (502).
6. The composite preform torsion control device of claim 5, wherein, A fixing screw is passed through each of the sliding sleeves (1001) to lock the sliding sleeves (1001) on the first guide sliding rod (501) or the second guide sliding rod (502).
7. The composite preform torsion control device of claim 5, wherein, A plurality of clamping grooves are arranged on the inner wall of the sliding sleeve (1001), and a plurality of rolling balls (1002) are embedded in the clamping grooves to reduce the friction when the sliding sleeve (1001) slides along the length direction of the first guide sliding rod (501) and the second guide sliding rod (502).
8. The method of claim 1-7, wherein the method further comprises: The method comprises the following steps: Step 1: one side of the preform (3) is placed between the first clamping plate (101) and the second clamping plate (102), and the first clamping plate (101) and the second clamping plate (102) clamp the side of the preform (3); the second clamping group is moved close to the first clamping plate (101) and the second clamping plate (102) to place the other side of the preform (3) between the third clamping plate (103) and the fourth clamping plate (104) in the second clamping group, and the third clamping plate (103) and the fourth clamping plate (104) clamp the side of the preform (3); the surface of the first clamping plate (101), the surface of the second clamping plate (102), the surface of the third clamping plate (103) and the surface of the fourth clamping plate (104) are kept parallel to the horizontal plane; Step 2: the first fixed plate (201) is rotated on the first frame beam (401) by a preset torsion angle and is fixed at the preset torsion angle, and in the process of rotating the first fixed plate (201) on the first frame beam (401), the preform (3) drives the second fixed plate (202) to slide towards the first fixed plate (201), and when the first fixed plate (201) is rotated on the first frame beam (401) to the preset torsion angle, the second fixed plate (202) stops sliding.
9. Use of the composite preform torsion control device according to any one of claims 1-7 in characterizing the internal microstructure changes of the preform after torsion.