Glass fiber reinforced plastic rod bending test device
By designing a glass fiber reinforced plastic rod bending test device including a motor, a screw and a mobile platform, the problem of bending test inaccuracy caused by existing manual operations is solved, and the accuracy and repeatability of bending tests are achieved.
Patent Information
- Application Number
- CN202422188261.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The existing glass fiber reinforced plastic rod bending test methods rely entirely on manual operation, resulting in bending speed and angle varying from person to person, and the bending radius is difficult to accurately control, resulting in inaccurate test results, low repeatability and reproducibility, and low practicality.
A glass fiber reinforced plastic rod bending test device is designed, including a base, mounting frame, motor, screw, linear guide rail, slider, mobile platform, mold rotation shaft and limit block. The motor drives the screw to drive the mobile platform to move, realizing the precise bending of the glass fiber reinforced plastic rod, and linear guide rail and slider ensure accurate control of the bending radius.
The accuracy and repeatability of the bending test of glass fiber reinforced plastic rods is achieved, the repeatability and reproducibility of the test are improved, and the accuracy and practicality of the test results are ensured.
Smart Images
Figure CN223051075U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of testing devices, and more specifically, to a bending test device for glass fiber reinforced plastic rods. Background Art
[0002] Since G.657 optical fibers (bend-insensitive single-mode optical fibers for access networks) have excellent bending resistance (macro-bending) compared to ordinary G.652 optical fibers, they have been widely used in scenarios such as fiber to the home (FTTH) and fiber to the room (FTTR). The complex installation environment also poses higher requirements for the bending resistance of optical cables. Optical cables using G.657 optical fibers widely use glass fiber reinforced plastic rods (GFRP) as strengthening members. Glass fiber reinforced plastic rods have the advantages of light weight, high strength, all-dielectric, corrosion resistance, and good thermal performance, and are widely used as tensile strengthening members in non-metallic communication optical cables. However, they also have the disadvantage of being easily bent. During the installation and use of GFRP, bending stress may cause it to bend, leading to the bending of the optical cable, and further causing an increase in optical fiber attenuation or even breakage. Therefore, to ensure the bending resistance of optical cables, the minimum instantaneous bending radius of GFRP is the most important test item for measuring its bending resistance. The conventional test method is: at room temperature, wind the GFRP into a circle with a radius of "25 x nominal diameter" once, and immediately observe. The surface of the wound GFRP should not disintegrate, that is, there should be no cracks, burrs, bends, and it should feel smooth and be able to spring straight. However, the existing technology has the following deficiencies in use:
[0003] This test method is completely manually operated, and the bending speed and angle vary from person to person. It is difficult to accurately control the bending radius, which may lead to inaccurate test results, and the repeatability and reproducibility of the test are low, and the practicality is low.
[0004] Therefore, there is an urgent need for a bending test device for glass fiber reinforced plastic rods to solve the above problems. Summary of the Utility Model
[0005] The purpose of the utility model is to address the problems that this test method is completely manually operated, the bending speed and angle vary from person to person, it is difficult to accurately control the bending radius, which may lead to inaccurate test results, and the repeatability and reproducibility of the test are low, and the practicality is low.
[0006] To achieve the above purpose, the utility model provides the following technical solutions:
[0007] A bending test device for glass fiber reinforced plastic rods to improve the above problems.
[0008] Specifically, this application is as follows:
[0009] Glass fiber reinforced plastic rod bending test device, including a base, a mounting frame is fixedly connected to the top of the base, a motor is installed at the right end of the mounting frame, the output end of the motor is fixedly connected with a lead screw, symmetrically arranged linear guide rails are fixedly connected to the top of the base, sliders are slidably connected to the linear guide rails, a moving platform is sleeved with a thread on the lead screw, the moving platform is fixedly installed on the tops of the two sliders, a connecting seat is arranged on the top of the moving platform, a tailstock is fixedly connected to the left end of the top of the base, mold rotating shafts are rotatably connected to the tops of the connecting seat and the tailstock, molds are installed on the tops of the two mold rotating shafts, a glass fiber reinforced plastic rod is penetrated between the two molds, two locking bolts are threadedly connected to the mold, and limiting blocks are fixedly installed on the tops of the connecting seat and the tailstock.
[0010] As a preferred technical solution of the present application, a straight ruler is provided on the front of the base, and an arrow mark is provided on the front of the moving platform.
[0011] As a preferred technical solution of the present application, a plurality of equally spaced mounting holes are provided on each of the two linear guide rails.
[0012] As a preferred technical solution of the present application, a connecting block is fixedly connected to the top of the base, and the end of the lead screw away from the motor is rotatably connected to the connecting block.
[0013] As a preferred technical solution of the present application, the connecting seat is fixedly installed on the top of the moving platform.
[0014] As a preferred technical solution of the present application, the bottom end of the locking bolt is located inside the mold.
[0015] As a preferred technical solution of the present application, the top end surfaces of the connecting seat and the tailstock are located on the same horizontal plane.
[0016] Compared with the prior art, the beneficial effects of the present utility model are:
[0017] In the solution of the present application:
[0018] Shear the test sample, a glass fiber reinforced plastic rod, to an appropriate length, then place its two ends into two molds respectively. Rotate the four locking bolts to fix the glass fiber reinforced plastic rod and prevent it from moving back and forth. Then start the motor. The motor drives the lead screw to rotate, and the rotating lead screw drives the moving platform to move to the left. The glass fiber reinforced plastic rod itself has a certain stress. When the moving platform moves, it will cause the glass fiber reinforced plastic rod to bend. The bent glass fiber reinforced plastic rod will cause the mold rotating shaft and the mold to rotate by a certain angle. The rotation angle of the mold is restricted by the limit block, and finally the two ends of the glass fiber reinforced plastic rod are parallel, reaching the required diameter distance for the experiment. The diameter of the glass fiber reinforced plastic rod can be visually displayed through a ruler and arrow markings, thus meeting the requirements of accurate test samples. It can also prevent burrs and bending injuries to people on the glass fiber reinforced plastic rod, solving the problems in the prior art that this test method is completely manually operated, the bending speed and angle vary from person to person, the bending radius is difficult to accurately control, which may lead to inaccurate test results, and the repeatability and reproducibility of the test are low, and the practicability is low. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 FIG. 1 is one of the overall structural schematic diagrams of the glass fiber reinforced plastic rod bending test device provided by the present application.
[0020] Figure 2 FIG. 2 is another overall structural schematic diagram of the glass fiber reinforced plastic rod bending test device provided by the present application.
[0021] Figure 3 FIG. 3 is one of the top view structural schematic diagrams of the glass fiber reinforced plastic rod bending test device provided by the present application.
[0022] Figure 4 FIG. 4 is one of the front view structural schematic diagrams of the glass fiber reinforced plastic rod bending test device provided by the present application.
[0023] Figure 5 FIG. 5 is another top view structural schematic diagram of the glass fiber reinforced plastic rod bending test device provided by the present application.
[0024] Figure 6 FIG. 6 is another front view structural schematic diagram of the glass fiber reinforced plastic rod bending test device provided by the present application.
[0025] Labels in the figures:
[0026] 1. Base; 2. Mounting bracket; 3. Motor; 4. Lead screw; 5. Linear guide; 6. Slide block; 7. Moving platform; 8. Connecting seat; 9. Tailstock; 10. Mold rotating shaft; 11. Mold; 12. Glass fiber reinforced plastic rod; 13. Locking bolt; 14. Limit block; 15. Straightedge; 16. Arrow mark; 17. Mounting hole; 18. Connecting block. Detailed implementation manners
[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present utility model.
[0028] Therefore, the following detailed description of the embodiments of the present utility model is not intended to limit the scope of the claimed present utility model, but merely represents some embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.
[0029] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments may be combined with each other.
[0030] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.
[0032] Embodiment:
[0033] As Figure 1-6As shown in the figure, the bending test device for glass fiber reinforced plastic rods proposed in this embodiment includes a base 1. A mounting frame 2 is fixedly connected to the top of the base 1. A motor 3 is installed at the right end of the mounting frame 2. The output end of the motor 3 is fixedly connected to a lead screw 4. Symmetrically arranged linear guide rails 5 are fixedly connected to the top of the base 1. A slider 6 is slidably connected to the linear guide rails 5. A moving platform 7 is sleeved on the lead screw 4 in a threaded manner. The moving platform 7 is fixedly installed on the tops of the two sliders 6. A connecting seat 8 is provided on the top of the moving platform 7. A tailstock 9 is fixedly connected to the left end of the top of the base 1. Mold rotating shafts 10 are rotatably connected to the tops of the connecting seat 8 and the tailstock 9 respectively. Molds 11 are installed on the tops of the two mold rotating shafts 10. A glass fiber reinforced plastic rod 12 is passed through between the two molds 11. The test sample, the glass fiber reinforced plastic rod 12, is cut to an appropriate length, and then its two ends are respectively placed into the two molds 11. The size of the molds 11 is determined according to the test sample. Two locking bolts 13 are threadedly connected to the molds 11. By rotating the four locking bolts 13, the glass fiber reinforced plastic rod 12 is fixed to prevent it from moving back and forth. Limit blocks 14 are fixedly installed on the tops of the connecting seat 8 and the tailstock 9 respectively. Start the motor 3. Drive the lead screw 4 to rotate through the motor 3. Drive the moving platform 7 and the connecting seat 8 to move to the left through the rotating lead screw 4. The glass fiber reinforced plastic rod 12 itself has a certain stress. When the moving platform 7 moves to the left, it will cause the glass fiber reinforced plastic rod 12 to bend. The bent glass fiber reinforced plastic rod 12 will cause the mold rotating shafts 10 and the molds 11 to rotate by a certain angle. The rotation angle of the mold 11 is limited by the limit block 14, and finally the two ends of the glass fiber reinforced plastic rod 12 are made parallel to reach the diameter distance required by the experiment.
[0034] As Figure 1 and Figure 2 shown, a straight ruler 15 is provided on the front of the base 1, and an arrow mark 16 is provided on the front of the moving platform 7. The diameter of the glass fiber reinforced plastic rod 12 can be intuitively displayed through the straight ruler 15 and the arrow mark 16.
[0035] As Figure 1 and Figure 3 shown, a plurality of equally spaced mounting holes 17 are opened on each of the two linear guide rails 5. The base 1 is installed at a specified position by using multiple fixing bolts in cooperation with the multiple mounting holes 17.
[0036] As Figure 3 and Figure 5 shown, a connecting block 18 is fixedly connected to the top of the base 1. The end of the lead screw 4 away from the motor 3 is rotatably connected to the connecting block 18 to ensure the stability of the rotation of the lead screw 4.
[0037] As Figure 2 and Figure 3 shown, the connecting seat 8 is fixedly installed on the top of the moving platform 7.
[0038] As Figure 1 shown, the bottom end of the locking bolt 13 is located inside the mold 11. By rotating the four locking bolts 13, the glass fiber reinforced plastic rod 12 is fixed to prevent it from moving back and forth.
[0039] As Figure 4 shown, the top end surface of the connecting seat 8 and the top end surface of the tailstock 9 are on the same horizontal plane, which can ensure the accuracy of the test sample.
[0040] Specifically, when the glass fiber reinforced plastic rod bending test device is in use: the base 1 is installed at a specified position by using multiple fixing bolts and matching with multiple mounting holes 17, the motor 3 is electrically connected to an external control power supply, the test sample glass fiber reinforced plastic rod 12 is cut to an appropriate length, and then its two ends are respectively placed into the two molds 11. By rotating the four locking bolts 13, the glass fiber reinforced plastic rod 12 is fixed to prevent it from moving back and forth. Then the motor 3 is started. The motor 3 drives the lead screw 4 to rotate. The rotating lead screw 4 drives the moving platform 7 and the connecting seat 8 to move to the left. The slider 6 slides on the linear guide rail 5. The glass fiber reinforced plastic rod 12 itself has a certain stress. When the moving platform 7 moves to the left, it will cause the glass fiber reinforced plastic rod 12 to bend. The bent glass fiber reinforced plastic rod 12 will cause the mold rotating shaft 10 and the mold 11 to rotate by a certain angle. The rotation angle of the mold 11 is limited by the limit block 14. Finally, the two ends of the glass fiber reinforced plastic rod 12 are parallel, reaching the diameter distance required by the experiment. The diameter of the glass fiber reinforced plastic rod 12 can be intuitively displayed by the ruler 15 and the arrow mark 16. This device can meet the requirements of accurate test samples and can also prevent the glass fiber reinforced plastic rod 12 from burring and bending to hurt people, ensuring safety during the test.
[0041] The above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific embodiments. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and their improvements that do not deviate from the spirit and scope of the invention are covered by the scope of the claims of the present invention.
Claims
1. A glass fiber reinforced plastic rod bending test device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a mounting frame (2), the right end of the mounting frame (2) is installed with a motor (3), the output end of the motor (3) is fixedly connected to a lead screw (4), the top of the base (1) is fixedly connected to a symmetrically arranged linear guide rail (5), a slider (6) is slidably connected to the linear guide rail (5), a moving platform (7) is threadedly sleeved on the lead screw (4), the moving platform (7) is fixedly installed on the top of the two sliders (6), and a connecting seat (8) is provided on the top of the moving platform (7). ), the left end of the top of the base (1) is fixedly connected to a tailstock (9), the top of the connecting seat (8) and the top of the tailstock (9) are both rotatably connected to a mold rotating shaft (10), the tops of the two mold rotating shafts (10) are both installed with molds (11), a glass fiber reinforced plastic rod (12) is inserted between the two molds (11), two locking bolts (13) are threadedly connected to the mold (11), and the top of the connecting seat (8) and the top of the tailstock (9) are both fixedly installed with a limit block (14).
2. The glass fiber reinforced plastic rod bending test device according to claim 1, characterized in that: A ruler (15) is provided on the front of the base (1), and an arrow mark (16) is provided on the front of the mobile platform (7).
3. The glass fiber reinforced plastic rod bending test device according to claim 1, characterized in that: The two linear guide rails (5) are each provided with a plurality of mounting holes (17) arranged at equal distances.
4. The glass fiber reinforced plastic rod bending test device according to claim 1, characterized in that: A connecting block (18) is fixedly connected to the top of the base (1), and one end of the screw rod (4) away from the motor (3) is rotatably connected to the connecting block (18).
5. The glass fiber reinforced plastic rod bending test device according to claim 1, characterized in that: The connecting seat (8) is fixedly mounted on the top of the mobile platform (7).
6. The glass fiber reinforced plastic rod bending test device according to claim 1, characterized in that: The bottom end of the locking bolt (13) is located inside the mold (11).
7. The glass fiber reinforced plastic rod bending test device according to claim 1, characterized in that: The top end surface of the connecting seat (8) and the top end surface of the tail seat (9) are located on the same horizontal plane.