Vertical multifunctional dynamic torsion test device, control system and application

Abstract

The invention provides a vertical multifunctional dynamic torsion test device, a control system and application, the vertical multifunctional dynamic torsion test device comprises a machine base, a lifting module, a motor module, a sensing module and an adjusting module, the lifting module is arranged on the machine base, the sensing module is arranged at the lower end of the machine base, the motor module is arranged on the lifting module, and the lifting module controls the motor module to move up and down; the adjusting module is arranged on the sensing module, a sample is arranged between the adjusting module and the motor module, the adjusting module is used for adjusting the distance between the sample and the sensing module, the motor module can realize one-way torsion and reciprocating torsion on the sample, and the sensing module can rotate along with the torsion motion of the sample and can dynamically detect torque data; the vertical structure is adopted, the dynamic torque sensor and the displacement sensor ensure high precision and reliability of test data, the displacement sensor and the collision sensor enable the test device to monitor the change of a sample in real time, and the test safety and accuracy are improved.

Description

Technical Field

[0001] The invention relates to the technical field of material mechanical property testing equipment, and in particular to a vertical multifunctional dynamic torsion testing device, a control system and an application thereof. Background Art

[0002] In the existing fields of materials engineering and structural design, testing the torsional properties of materials is a critical task. Torsion testing can evaluate the performance of materials under torque, which is crucial for the design and manufacture of high-performance engineering materials. However, traditional torsion testing machines are mostly horizontal structures, which have some limitations, such as the inability to adapt to different initial specimen lengths and dynamic changes in length after torsion, the inability to achieve concentricity detection, and limited data acquisition accuracy. In addition, when the specimen breaks, traditional testing machines usually need to stop the test manually, which poses a safety hazard and the possibility of inaccurate data. Therefore, it is particularly important to develop a multifunctional torsion testing device that can overcome the above shortcomings. Summary of the invention

[0003] The main purpose of the present invention is to overcome the above shortcomings and deficiencies of the prior art and to provide a vertical multifunctional dynamic torsion test device, a control system and applications.

[0004] A vertical multifunctional dynamic torsion testing device comprises a machine base, a lifting module, a motor module, a sensor module and an adjustment module, wherein the lifting module is arranged on the upper side of the machine base, the sensor module is arranged at the lower end of the machine base, the motor module is arranged on the lifting module, the lifting module controls the up and down movement of the motor module, the adjustment module is installed on the sensor module, a sample is installed between the adjustment module and the motor module, the adjustment module is used to adjust the distance between the sample and the sensor module, the motor module can realize unidirectional torsion and reciprocating torsion of the sample, and the sensor module can rotate together with the torsional movement of the sample and can dynamically detect torque data.

[0005] In one embodiment, the sensing module includes a dynamic torque sensor, a sensor base and a sensor fixing part, the sensor base is mounted on the machine base, the sensor fixing part is mounted on the sensor base, the dynamic torque sensor can be fixed to the sensor base through the sensor fixing part, or the dynamic torque sensor is mounted on the sensor fixing part and can rotate relative to the sensor fixing part and rotate together with the torsional movement of the sample.

[0006] In one embodiment, the sensor module further includes a sensor pad, which is disposed on the base and can move forward and backward relative to the base, and the sensor base is connected to the sensor pad and can move left and right.

[0007] In one embodiment, oblong holes are provided on the sensor base and the sensor pad, wherein the sensor base controls left and right movement, and the sensor pad controls front and back movement, so as to facilitate easy installation and fine-tuning of the positioning of the sensor module.

[0008] In one embodiment, the adjustment module includes a concave groove and a sliding piece, the bottom of the concave groove is fixed on the dynamic torque sensor, a slidable long groove is opened in the concave groove, the sliding piece is arranged in the long groove and can slide freely up and down, and one end of the sample is clamped on the sliding piece. More specifically, the sliding piece can be fixed in the long groove or slide freely up and down to adapt to the dynamic change of the sample length during the torsion process.

[0009] In one embodiment, a displacement sensor is provided on the motor module, a small hole is provided on the sliding sheet, and infrared light emitted by the displacement sensor passes through the small hole. The displacement sensor is used to record the length change of the sample during the torsion process, including the contraction or extension distance, and is recorded synchronously with the dynamic torque data.

[0010] In one embodiment, the lifting module includes a stepper motor, a lower fixed plate, a sliding plate, an upper fixed plate, a screw, a first guide post, a second guide post, a first sleeve and a second sleeve; the upper fixed plate and the lower fixed plate are connected to the side of the base, the stepper motor is connected with a screw, the screw, the first guide post and the second guide post pass through the lower fixed plate, the sliding plate and the upper fixed plate from bottom to top, the first sleeve is arranged between the lower fixed plate and the screw, and the second sleeve is arranged between the sliding plate and the screw; the sliding plate is connected to the motor module, and the screw is driven by the stepper motor to realize the lifting of the sliding plate. The lifting module is used to control the motor module to move up and down to adapt to the length of different initial samples and ensure flexible adjustment of the initial positioning of the sample.

[0011] In one embodiment, the motor module includes a servo motor, a motor base, a motor pad and a motor connecting block, the servo motor is fixed on the motor base, the motor base is connected to the motor pad, the motor pad is connected to one side of the motor connecting block, and the motor connecting block is fixed to the sliding plate.

[0012] In one embodiment, a sample holder is provided between the motor module, the sliding sheet and the sample, and the sample holder is a three-mouth chuck. The three-mouth chuck can hold samples of different cross-sectional shapes and sizes and is suitable for torsional performance testing of various materials.

[0013] In one embodiment, the sample holder includes an upper chuck and a lower chuck, wherein the upper chuck is mounted on the end of the servo motor by screws, and the lower chuck is connected to the sliding sheet by screws. The infrared light emitted by the displacement sensor is used to detect whether the upper and lower chucks are concentric, thereby ensuring the test accuracy.

[0014] In one embodiment, a collision sensor is further provided between the concave groove and the sliding piece, and the collision sensor is fixed on the concave groove. Compared with the traditional horizontal structure test device, when the sample breaks, the traditional test device usually needs to stop the test manually. The danger is high in the short time from the sample breaking to the manual stop of the test, and the broken sample is still twisting. However, in the present invention, when the tested sample breaks, the sliding piece falls along the long groove and hits the collision sensor, the servo motor stops rotating immediately, and the data recording stops, avoiding damage to the equipment and the sample.

[0015] A control system for a vertical multifunctional dynamic torsion testing device is used to control the vertical multifunctional dynamic torsion testing device. The control system comprises a motor driver, a serial port integrator, a switching power supply and a computer. The serial port integrator is respectively connected to the motor driver, the switching power supply and the computer. The motor driver is connected to the motor module, and the switching power supply is connected to the sensor module.

[0016] An application of a vertical multifunctional dynamic torsion test device comprises the following steps:

[0017] S1: Set the initial length of the sample;

[0018] S2: Setting the test mode, which includes unidirectional torsion test and reciprocating fatigue test;

[0019] S3: Set the rotation speed of the stepper motor;

[0020] S4: Set the stepper motor pause time;

[0021] S5: Set the number of revolutions of the stepper motor;

[0022] S6: Run.

[0023] The present invention has the following beneficial effects:

[0024] 1. The vertical structure is adopted, and the lifting module is used to adapt to different sample lengths. The dynamic torque sensor and displacement sensor ensure the high accuracy and reliability of the test data. The displacement sensor and collision sensor enable the test device to monitor the changes of the sample in real time and automatically stop the test when necessary, thereby improving the safety and accuracy of the test. The invention has a simple structure and is easy to operate.

[0025] 2. Modular design is adopted to facilitate installation and maintenance, and reduce manufacturing costs;

[0026] 3. The sample holder adopts a three-claw design, which can hold samples of different cross-sectional sizes and is suitable for testing samples of various materials;

[0027] 4. The dynamic torque sensor can be fixed or twisted with the sample to detect torque data in real time. It is suitable for dynamically changing test scenarios and various test modes. Compared with traditional sensors, the dynamic torque sensor of the present invention can improve the accuracy and flexibility of the test.

[0028] 5. The adjustment module can adapt to the dynamic changes of the sample length during torsion testing, and can also fix the sample length. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the vertical multifunctional dynamic torsion testing device of the present invention;

[0030] Figure 2 It is a partial structural schematic diagram of the vertical multifunctional dynamic torsion testing device of the present invention;

[0031] Figure 3 It is a partial structural schematic diagram of the vertical multifunctional dynamic torsion testing device of the present invention;

[0032] Figure 4 It is a schematic diagram of the application of the vertical multifunctional dynamic torsion test device of the present invention;

[0033] Figure 5 It is a torque-torsion angle curve applied to the vertical multifunctional dynamic torsion test device of the present invention;

[0034] Figure 6 It is a twist-contraction distance-time curve applied to the vertical multifunctional dynamic torsion test device of the present invention. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] The present invention provides a vertical multifunctional dynamic torsion testing device, comprising a machine base, a lifting module, a motor module, a sensor module and an adjustment module, wherein the lifting module is arranged on the upper end side of the machine base, the sensor module is arranged at the lower end of the machine base, the motor module is arranged on the lifting module, the lifting module controls the up and down movement of the motor module, the adjustment module is installed on the sensor module, a sample is installed between the adjustment module and the motor module, the adjustment module is used to adjust the distance between the sample and the sensor module, the motor module can realize unidirectional torsion and reciprocating torsion of the sample, and the sensor module can rotate together with the torsional movement of the sample and can dynamically detect torque data.

[0041] The present invention adopts a vertical structure and realizes adaptation to different sample lengths through a lifting module. The dynamic torque sensor and the displacement sensor ensure the high accuracy and reliability of the test data. The displacement sensor and the collision sensor enable the test device to monitor the changes of the sample in real time and automatically stop the test when necessary, thereby improving the safety and accuracy of the test. The present invention adopts a modular design, has a simple structure, is easy to operate, and reduces the manufacturing cost.

[0042] Embodiment 1

[0043] See also Figures 1 to 3 The present invention provides a vertical multifunctional dynamic torsion test device 100, which is mainly used to test the torsion performance of engineering materials. It includes a machine base 1, a lifting module 2, a motor module 3, a sensor module 4 and an adjustment module 5. The lifting module 2 is arranged on the upper side of the machine base 1, the sensor module 4 is arranged on the lower end of the machine base 1, the motor module 3 is arranged on the lifting module 2, the lifting module 2 controls the up and down movement of the motor module 3, the adjustment module 5 is installed on the sensor module 4, and a sample 200 is installed between the adjustment module 5 and the motor module 3. The adjustment module 5 is used to adjust the distance between the sample 200 and the sensor module 4. The motor module 3 can realize unidirectional torsion and reciprocating torsion of the sample 200, and the sensor module 4 can rotate together with the torsion movement of the sample 200 and can dynamically detect torque data. The present invention has a simple structure and is easy to operate; it adopts a modular design, which is convenient for installation and maintenance and reduces the manufacturing cost.

[0044] More specifically, see Figure 2The lifting module 2 includes a stepper motor 21, a lower fixed plate 22, a sliding plate 23, an upper fixed plate 24, a screw 25, a first guide column 26, a second guide column 27, a first sleeve 28 and a second sleeve 29; the upper fixed plate 24 and the lower fixed plate 22 are connected to the side of the base 1, the stepper motor 21 is connected with a screw 25, the screw 25, the first guide column 26 and the second guide column 27 pass through the lower fixed plate 22, the sliding plate 23 and the upper fixed plate 24 from bottom to top, the first sleeve 28 is arranged between the lower fixed plate 22 and the screw 25, and the second sleeve 29 is arranged between the sliding plate 23 and the screw 25; the sliding plate 23 is connected to the motor module 3, and the screw 25 is driven by the stepper motor 21 to realize the lifting of the sliding plate 23. The lifting module 2 is used to control the motor module 3 to move up and down to adapt to the length of different initial samples 200, so as to ensure flexible adjustment of the initial positioning of the sample.

[0045] More specifically, see Figure 1 The motor module 3 includes a servo motor 31, a motor base 32, a motor pad 33 and a motor connection block 34. The servo motor 31 is fixed on the motor base 32. The motor base 32 is connected to the motor pad 33. The motor pad 33 is connected to one side of the motor connection block 34. The motor connection block 34 is fixed to the sliding plate 23. Preferably, a connection groove 231 is opened on the side of the sliding plate 23, and the connection groove 231 is used for fixing and installing the motor connection block 34.

[0046] More specifically, see Figure 1 The sensor module 4 includes a dynamic torque sensor 41, a sensor base 42, a sensor fixing member 43 and a sensor pad 44. The sensor base 42 is mounted on the machine base 1, and the sensor fixing member 43 is mounted on the sensor base 42. The dynamic torque sensor 41 can be fixed on the sensor base 42 through the sensor fixing member 43, or the dynamic torque sensor 41 is mounted on the sensor fixing member 43 and can rotate relative to the sensor fixing member 43 and rotate together with the torsional movement of the sample 200. The sensor pad 44 is arranged on the machine base 1 and can move forward and backward relative to the machine base 1. The sensor base 42 is connected to the sensor pad 44 and can move left and right.

[0047] More specifically, see Figure 1 The sensor base 42 and the sensor pad 44 are both provided with oblong holes (421, 441). The sensor base 42 controls left and right movement, and the sensor pad 44 controls front and back movement, which facilitates easy installation and fine-tuning of the sensor module.

[0048] More specifically, see Figure 1 and Figure 3The adjustment module 5 includes a concave groove 51 and a sliding piece 52. The bottom of the concave groove 51 is fixed on the dynamic torque sensor 41. A slidable long groove 511 is opened in the concave groove 51. The sliding piece 52 is arranged in the long groove 511 and can slide freely up and down. One end of the sample 200 is clamped on the sliding piece 52. More specifically, the sliding piece 52 can be fixed in the long groove 511 or slide freely up and down to adapt to the dynamic change of the sample length during the torsion process.

[0049] Preferably, see Figure 1 and Figure 3 A displacement sensor 6 is provided on the motor module 3, and a small hole 521 is provided on the sliding sheet 52. The infrared light emitted by the displacement sensor 6 passes through the small hole 521. The displacement sensor 6 is used to record the length change of the sample 200 during the torsion process, including the contraction or extension distance, and record it synchronously with the dynamic torque data.

[0050] More specifically, see Figure 1 and Figure 3 A sample holder is provided between the motor module 3, the sliding piece 52 and the sample 200. Preferably, the sample holder is a three-mouth chuck, which can hold samples of different cross-sectional shapes and sizes and is suitable for torsional performance testing of various materials. More preferably, the sample holder includes an upper chuck 7 and a lower chuck 8, the upper chuck 7 is mounted on the end of the servo motor 31 by screws, and the lower chuck 8 is connected to the sliding piece 52 by screws. Whether the upper chuck 7 and the lower chuck 8 are concentric is detected by infrared light emitted by the displacement sensor 6, thereby ensuring the test accuracy.

[0051] Preferably, see Figure 3 A collision sensor 9 is also provided between the concave groove 51 and the sliding piece 52. The collision sensor 9 is fixed on the concave groove 51. Compared with the traditional horizontal structure test device, when the sample breaks, the traditional test device usually needs to stop the test manually. The danger is high in the short time from the sample breaking to the manual stop of the test, and the broken sample is still twisting. However, when the tested sample 200 breaks, the sliding piece 52 falls along the long groove 511 and hits the collision sensor 9, the servo motor 31 stops rotating immediately, and the data recording stops, avoiding damage to the equipment and the sample 200.

[0052] The present invention adopts a vertical structure and realizes adaptation to different sample lengths through a lifting module. The dynamic torque sensor and displacement sensor ensure the high accuracy and reliability of the test data. The displacement sensor and collision sensor enable the test device to monitor the changes of the sample in real time and automatically stop the test when necessary, thereby improving the safety and accuracy of the test. The sample holder adopts a three-claw design, which can clamp samples of different cross-sectional sizes and is suitable for testing samples of various materials. The dynamic torque sensor can be fixed or twisted with the sample to detect torque data in real time. It is suitable for dynamically changing test scenarios and multiple test modes. Compared with traditional sensors, the dynamic torque sensor of the present invention can improve the accuracy and flexibility of the test. The adjustment module can adapt to the dynamic changes in the sample length during the torsion test, and can also fix the sample length.

[0053] Embodiment 2

[0054] See also Figure 1 The present invention provides a control system 300 of a vertical multifunctional dynamic torsion testing device, which is used to control the above-mentioned vertical multifunctional dynamic torsion testing device 100, and includes a motor driver 301, a serial port integrator 302, a switching power supply 303 and a computer 304. The serial port integrator 302 is respectively connected to the motor driver 301, the switching power supply 303 and the computer 304, the motor driver 301 is connected to the motor module 3, and the switching power supply 303 is connected to the sensor module 4.

[0055] Embodiment 3

[0056] See also Figure 4 The present invention provides an application of a vertical multifunctional dynamic torsion test device, comprising the following steps:

[0057] S1: Set the initial length of the sample to 100 mm;

[0058] S2: Set the test mode, the test mode is set to unidirectional torsion test;

[0059] S3: Set the stepper motor rotation speed to 100prm / min;

[0060] S4: Set the stepper motor pause time, the motor pause time is 0s;

[0061] S5: Set the number of revolutions of the stepper motor to 1000;

[0062] S6: Run.

[0063] The engineering material selected in this embodiment is carbon fiber bundle (T-300, 3K), please refer to Figure 5 , Figure 5The torque-torsion angle curve of the engineering material obtained according to the above implementation process is shown. Figure 6 , Figure 6 The twist-shrink distance-time curves for engineering materials are shown.

[0064] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A vertical multifunctional dynamic torsion test device, characterized in that: include: A machine base, a lifting module, a motor module, a sensor module and an adjustment module, wherein the lifting module is arranged on the upper side of the machine base, the sensor module is arranged at the lower end of the machine base, the motor module is arranged on the lifting module, the lifting module controls the up and down movement of the motor module, the adjustment module is installed on the sensor module, a sample is installed between the adjustment module and the motor module, the adjustment module is used to adjust the distance between the sample and the sensor module, the motor module can realize unidirectional torsion and reciprocating torsion of the sample, the sensor module can rotate together with the torsional movement of the sample and can dynamically detect torque data.

2. The vertical multifunctional dynamic torsion test device according to claim 1 is characterized in that: The sensing module includes a dynamic torque sensor, a sensor base and a sensor fixing part. The sensor base is installed on the machine base, and the sensor fixing part is installed on the sensor base. The dynamic torque sensor can be fixed on the sensor base through the sensor fixing part, or the dynamic torque sensor is installed on the sensor fixing part and can rotate relative to the sensor fixing part and rotate together with the torsional movement of the sample.

3. The vertical multifunctional dynamic torsion testing device according to claim 2 is characterized in that: The sensor module further comprises a sensor pad, which is arranged on the base and can move forward and backward relative to the base, and the sensor base is connected to the sensor pad and can move left and right.

4. The vertical multifunctional dynamic torsion testing device according to claim 2 is characterized in that: The adjustment module includes a concave groove and a sliding piece. The bottom of the concave groove is fixed on the dynamic torque sensor. A slidable long groove is opened in the concave groove. The sliding piece is arranged in the long groove and can slide freely up and down. One end of the sample is clamped on the sliding piece.

5. The vertical multifunctional dynamic torsion testing device according to claim 4 is characterized in that: A displacement sensor is provided on the motor module, a small hole is provided on the sliding sheet, and infrared light emitted by the displacement sensor passes through the small hole.

6. The vertical multifunctional dynamic torsion testing device according to claim 4 is characterized in that: A sample holder is arranged between the motor module, the sliding sheet and the sample, and the sample holder is a three-mouth chuck.

7. The vertical multifunctional dynamic torsion testing device according to claim 1 is characterized in that: The lifting module includes a stepper motor, a lower fixed plate, a sliding plate, an upper fixed plate, a screw, a first guide column, a second guide column, a first sleeve and a second sleeve; the upper fixed plate and the lower fixed plate are connected to the side of the machine base, and the stepper motor is connected to a screw, and the screw, the first guide column and the second guide column pass through the lower fixed plate, the sliding plate and the upper fixed plate from bottom to top in sequence, the first sleeve is arranged between the lower fixed plate and the screw, and the second sleeve is arranged between the sliding plate and the screw; the sliding plate is connected to the motor module, and the screw is driven by the stepper motor to realize the lifting and lowering of the sliding plate.

8. The vertical multifunctional dynamic torsion testing device according to claim 7 is characterized in that: The motor module includes a servo motor, a motor base, a motor pad and a motor connecting block, the servo motor is fixed on the motor base, the motor base is connected to the motor pad, the motor pad is connected to one side of the motor connecting block, and the motor connecting block is fixed to the sliding plate.

9. A control system for a vertical multifunctional dynamic torsion test device, used for controlling the vertical multifunctional dynamic torsion test device as claimed in any one of claims 1 to 8, characterized in that: It includes a motor driver, a serial port integrator, a switching power supply and a computer. The serial port integrator is connected to the motor driver, the switching power supply and the computer respectively. The motor driver is connected to the motor module, and the switching power supply is connected to the sensor module.

10. An application of a vertical multifunctional dynamic torsion test device, characterized in that: The steps include: S1: Set the initial length of the sample; S2: Setting the test mode, which includes unidirectional torsion test and reciprocating fatigue test; S3: Set the rotation speed of the stepper motor; S4: Set the stepper motor pause time; S5: Set the number of revolutions of the stepper motor; S6: Run.

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