Carbon fiber shaft bonding strength detection device and method

Abstract

The present invention discloses a carbon fiber shaft bonding strength detection device and method, comprising a press, a bearing seat, a top sleeve, a fastening ring seat, an inner cone expansion block and a pressing shaft, wherein the bearing seat is placed on a workbench directly below the pressing plate of the press, the bearing seat is provided with a receiving cavity and a limiting groove concentrically surrounding the outside of the receiving cavity, the top sleeve and the fastening ring seat are correspondingly inserted into the receiving cavity and the limiting groove, the lower part of the pressing shaft is in the shape of a truncated cone with a larger upper portion and a smaller lower portion and is adapted to the insertion cavity formed when the inner cone expansion block is closed, the outer diameter of the inner cone expansion block when closed is smaller than the inner diameter of the carbon fiber shaft to be tested, when in use, the inner cone expansion block is placed into the carbon fiber shaft to be tested, and then the lower part of the pressing shaft is inserted into the inner cone expansion block so that the inner cone expansion block is tightened between the carbon fiber shaft to be tested and the pressing shaft, the top end of the pressing shaft is located outside the carbon fiber shaft to be tested, and then the carbon fiber shaft to be tested with the inner cone expansion block and the pressing shaft inserted is clamped on the fastening ring. The present invention solves the technical problem of how to perform labor-saving and accurate bonding strength detection on a carbon fiber shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon fiber shaft bonding strength detection technology, and in particular to a carbon fiber shaft bonding strength detection device and method. Background Art

[0002] Carbon fiber shafts are constructed by gluing a metal base and a carbon fiber tube together. After gluing, the bond strength of the carbon fiber shaft needs to be tested to ensure bond reliability. Currently, this is typically done manually, requiring manual twisting. This significantly increases labor intensity and testing time, as the twisting force is manually applied. Without intuitive data to reflect bond strength, this makes it impossible to provide an effective quality control basis for optimizing material ratios and process flows, and results in low reliability and accuracy. Summary of the Invention

[0003] In view of the deficiencies in the background technology, the present invention provides a device and method for detecting the bonding strength of a carbon fiber shaft to solve the problem of how to perform labor-saving and accurate bonding strength detection on a carbon fiber shaft.

[0004] In order to solve the above technical problems, the present invention provides a carbon fiber shaft bonding strength detection device, comprising a press, a bearing seat, a top sleeve, a fastening ring seat for coaxially clamping the carbon fiber shaft to be tested, an inner cone expansion block and a pressing shaft, the bearing seat is placed on the workbench of the press and is located directly below the pressing plate of the press, the top surface of the bearing seat is penetrated by a accommodating cavity adapted to the top sleeve, and is embedded with a limiting groove concentrically surrounding the outside of the accommodating cavity and adapted to the bottom of the fastening ring seat, the top sleeve and the bottom of the fastening ring seat are correspondingly inserted into the accommodating cavity and the limiting groove In the positioning slot, the lower part of the pressing shaft is in the shape of a truncated cone with a larger upper part and a smaller lower part, and is adapted to form an insertion cavity when the inner cone expansion block is closed. The outer diameter of the inner cone expansion block when closed is smaller than the inner diameter of the carbon fiber shaft to be tested. When in use, the inner cone expansion block is first placed in the carbon fiber shaft to be tested, and then the lower part of the pressing shaft is inserted into the inner cone expansion block so that the inner cone expansion block is expanded and tightened between the carbon fiber shaft to be tested and the pressing shaft. The top end of the pressing shaft is located outside the carbon fiber shaft to be tested, and then the carbon fiber shaft to be tested with the inner cone expansion block and the pressing shaft inserted is clamped on the fastening ring.

[0005] In one embodiment of the present invention, the inner cone expansion block is a multi-petal cone structure.

[0006] In one embodiment of the present invention, a pair of symmetrically arranged handles are horizontally provided outwardly on the outer side wall of the fastening ring seat.

[0007] In one embodiment of the present invention, a vertical clamp for tightening or loosening the bearing seat is further provided on the workbench of the press.

[0008] The present invention also provides a carbon fiber shaft bonding strength detection method, which is performed in the above-mentioned carbon fiber shaft bonding strength detection device and includes the following steps:

[0009] Step S1: first, place the top surface of the bearing seat upward on the workbench of the press and make it directly below the pressing plate of the press, and then insert the bottom of the top sleeve and the fastening ring seat into the accommodating cavity and the limiting groove respectively;

[0010] Step S2: placing the inner cone expansion block into the carbon fiber shaft to be tested, and then inserting the lower portion of the pressure shaft into the inner cone expansion block so that the inner cone expansion block is tightened between the carbon fiber shaft to be tested and the pressure shaft, with the top end of the pressure shaft located outside the carbon fiber shaft to be tested. Then, the carbon fiber shaft to be tested with the inner cone expansion block and the pressure shaft inserted therein is clamped upside down on the fastening ring seat.

[0011] Step S3: first adjust the pressure of the press to the required load force, then control the pressing plate of the press to press downward, press the top end of the pressing shaft into the carbon fiber shaft to be tested, and then stop pressing downward. During this process, the inner cone expansion block expands radially under the push of the pressing shaft, transmitting pressure to the carbon fiber shaft to be tested;

[0012] Step S4, controlling the pressing plate of the press to reset, taking out the carbon fiber shaft to be tested with the inner cone expansion block and the pressing shaft inserted therein from the fastening ring seat, then taking out the inner cone expansion block and the pressing shaft from the carbon fiber shaft to be tested, and then visually inspecting whether the adhesive bonding part of the carbon fiber shaft to be tested is damaged. If there is no damage, it is qualified; otherwise, it is unqualified.

[0013] The above technical solution of the present invention has the following advantages over the existing technology: the present invention provides the load force required for detection through a press, and uses the expansion sleeve principle to transfer the load force required for detection to the carbon fiber shaft to be tested through the cooperation of the pressing shaft and the inner cone expansion block, thereby realizing labor-saving and accurate bonding strength detection of the carbon fiber shaft, greatly reducing the labor intensity of workers, ensuring the accuracy and reliability of the test results, and making the bonding strength quantifiable, providing an effective quality control judgment basis for the optimization of material ratio and process flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings, wherein

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a structural schematic diagram of the inner cone expansion block in the present invention;

[0017] Description of the accompanying drawings in the specification: 1. Press, 2. Bearing seat, 21. Accommodating cavity, 22. Limiting groove, 3. Top sleeve, 4. Carbon fiber shaft to be tested, 5. Fastening ring seat, 6. Inner cone expansion block, 7. Pressing shaft, 8. Handle. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0019] The foregoing and other technical aspects, features, and benefits of the present invention will be more clearly understood in the following detailed description of the embodiments with reference to the accompanying drawings. Directional terms such as up, down, left, right, front, and back, used in the following embodiments, are merely references to the accompanying drawings. Therefore, the directional terms used are for illustrative purposes only and are not intended to limit the present invention. Furthermore, throughout the embodiments, identical reference numerals denote identical elements.

[0020] Reference Figure 1 As shown, a carbon fiber shaft bonding strength detection device includes a press 1, a bearing seat 2, a top sleeve 3, a fastening ring seat 5 for coaxially clamping the carbon fiber shaft 4 to be tested, an inner cone expansion block 6 and a pressing shaft 7. The bearing seat 2 is placed on the workbench of the press 1 and is located directly below the pressing plate of the press 1. The top surface of the bearing seat 2 is penetrated by a receiving cavity 21 adapted to the top sleeve 3, and is embedded with a limiting groove 22 concentrically surrounded by the outside of the receiving cavity 21 and adapted to the bottom of the fastening ring seat 5. The bottoms of the top sleeve 3 and the fastening ring seat 5 are correspondingly inserted into the receiving cavity 21 and the limiting groove 22. In the embodiment, the lower part of the pressing shaft 7 is in the shape of a truncated cone with a larger upper portion and a smaller lower portion and is adapted to form an insertion cavity when the inner cone expansion block 6 is closed. The outer diameter of the inner cone expansion block 6 when closed is smaller than the inner diameter of the carbon fiber shaft 4 to be tested. When in use, the inner cone expansion block 6 is first placed in the carbon fiber shaft 4 to be tested, and then the lower part of the pressing shaft 7 is inserted into the inner cone expansion block 6 so that the inner cone expansion block 6 is tightened between the carbon fiber shaft 4 to be tested and the pressing shaft 7. The top end of the pressing shaft 7 is located outside the carbon fiber shaft 4 to be tested, and then the carbon fiber shaft 4 to be tested with the inner cone expansion block 6 and the pressing shaft 7 inserted is clamped on the fastening ring. During testing, the press 1 provides the load force required for testing, and the pressing shaft 7 cooperates with the inner cone expansion block 6 to transfer the load force required for testing to the carbon fiber shaft 4 to be tested using the expansion sleeve principle, thereby achieving the technical effect of labor-saving and accurate testing of the bonding strength of the carbon fiber shaft.

[0021] like Figure 2As shown, the inner cone expansion block 6 is a multi-petal cone structure, which not only increases the expansion range of the expansion block, but also makes the carbon fiber shaft 4 to be tested bear the force evenly.

[0022] A pair of symmetrically arranged handles 8 are horizontally provided on the outer side wall of the fastening ring seat 5 , which improves the convenience of operating the fastening ring seat 5 .

[0023] The workbench of the press 1 is also provided with a vertical clamp for tightening or loosening the support base 2, which effectively prevents the support base 2 from moving during the test and improves the stability and safety of the test.

[0024] A method for testing the bonding strength of a carbon fiber shaft is performed in the above-mentioned carbon fiber shaft bonding strength testing device, comprising the following steps:

[0025] Step S1: first, place the top surface of the supporting seat 2 upward on the workbench of the press 1 and make it directly below the pressing plate of the press 1, and then insert the bottom of the top sleeve 3 and the bottom of the fastening ring seat 5 into the accommodating cavity 21 and the limiting groove 22 respectively;

[0026] Step S2: insert the inner cone expansion block 6 into the carbon fiber shaft 4 to be tested, and then insert the lower part of the pressing shaft 7 into the inner cone expansion block 6 so that the inner cone expansion block 6 is tightened between the carbon fiber shaft 4 to be tested and the pressing shaft 7. The top end of the pressing shaft 7 is located outside the carbon fiber shaft 4 to be tested. Then, the carbon fiber shaft 4 to be tested with the inner cone expansion block 6 and the pressing shaft 7 inserted is clamped upside down on the fastening ring seat 5.

[0027] Step S3: first adjust the pressure of the press 1 to the required load force, then control the pressing plate of the press 1 to press downward, press the top end of the pressing shaft 7 into the carbon fiber shaft 4 to be tested, and then stop pressing downward. During this process, the inner cone expansion block 6 expands radially under the push of the pressing shaft 7, transmitting pressure to the carbon fiber shaft 4 to be tested;

[0028] In step S4, the pressing plate of the press machine 1 is controlled to reset, and the carbon fiber shaft 4 to be tested, with the inner cone expansion block 6 and the pressure shaft 7 inserted therein, is removed from the fastening ring seat 5. The inner cone expansion block 6 and the pressure shaft 7 are then removed from the carbon fiber shaft 4 to be tested. The bonded portion of the carbon fiber shaft 4 to be tested is then visually inspected for damage. If there is no damage, the test is qualified; otherwise, the test is unqualified. This method achieves the technical effect of labor-saving and accurate testing of the bonding strength of carbon fiber shafts. The labor intensity of workers is low, the test is labor-saving, the test results are accurate and reliable, and the bonding strength can be quantified, providing an effective quality control judgment basis for the optimization of material ratios and process flows.

[0029] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0030] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A carbon fiber shaft bonding strength detection device, characterized in that , including a press, a bearing seat, a top sleeve, a fastening ring seat for coaxially clamping the carbon fiber shaft to be tested, an inner cone expansion block and a pressing shaft, the inner cone expansion block is a multi-petal cone structure, and a pair of symmetrically arranged handles are provided on the outer side wall of the fastening ring seat horizontally facing outward. The bearing seat is placed on the workbench of the press and is located directly below the pressure plate of the press. The top surface of the bearing seat is penetrated by a accommodating cavity adapted to the top sleeve, and is embedded with a limiting groove concentrically surrounding the outside of the accommodating cavity and adapted to the bottom of the fastening ring seat. The top sleeve and the bottom of the fastening ring seat are correspondingly inserted into the accommodating cavity. In the receiving cavity and the limiting groove, the lower part of the pressing shaft is in the shape of a cone with a larger upper part and a smaller lower part, and is adapted to form an insertion cavity when the inner cone expansion block is closed. The outer diameter of the inner cone expansion block when closed is smaller than the inner diameter of the carbon fiber shaft to be tested. When in use, the inner cone expansion block is first placed in the carbon fiber shaft to be tested, and then the lower part of the pressing shaft is inserted into the inner cone expansion block so that the inner cone expansion block is expanded and tightened between the carbon fiber shaft to be tested and the pressing shaft. The top end of the pressing shaft is located outside the carbon fiber shaft to be tested, and then the carbon fiber shaft to be tested with the inner cone expansion block and the pressing shaft inserted is clamped on the fastening ring.

2. The carbon fiber shaft bonding strength detection device according to claim 1, characterized in that: The workbench of the press is also provided with a vertical clamp for tightening or loosening the bearing seat.

3. A method for testing the bonding strength of a carbon fiber shaft, characterized in that: The carbon fiber shaft bonding strength detection device according to any one of claims 1 to 2 comprises the following steps: Step S1: first, place the top surface of the bearing seat upward on the workbench of the press and make it directly below the pressing plate of the press, and then insert the bottom of the top sleeve and the fastening ring seat into the accommodating cavity and the limiting groove respectively; Step S2: placing the inner cone expansion block into the carbon fiber shaft to be tested, and then inserting the lower portion of the pressure shaft into the inner cone expansion block so that the inner cone expansion block is tightened between the carbon fiber shaft to be tested and the pressure shaft, with the top end of the pressure shaft located outside the carbon fiber shaft to be tested. Then, the carbon fiber shaft to be tested with the inner cone expansion block and the pressure shaft inserted therein is clamped upside down on the fastening ring seat. Step S3: first adjust the pressure of the press to the required load force, then control the pressing plate of the press to press downward, press the top end of the pressing shaft into the carbon fiber shaft to be tested, and then stop pressing downward. During this process, the inner cone expansion block expands radially under the push of the pressing shaft, transmitting pressure to the carbon fiber shaft to be tested; Step S4, controlling the pressing plate of the press to reset, taking out the carbon fiber shaft to be tested with the inner cone expansion block and the pressing shaft inserted therein from the fastening ring seat, then taking out the inner cone expansion block and the pressing shaft from the carbon fiber shaft to be tested, and then visually inspecting whether the adhesive bonding part of the carbon fiber shaft to be tested is damaged. If there is no damage, it is qualified; otherwise, it is unqualified.

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