High-precision controllable tension meter for measuring Young modulus of metal wire

Abstract

The utility model discloses a high-precision controllable tension meter for measuring the Young modulus of a metal wire, which belongs to the technical field of measurement of the Young modulus of the metal wire and comprises an operation base, a limiting mounting groove and a connecting sliding groove are formed in the top of the operation base, a stretching driving assembly is mounted in the limiting mounting groove, and a clamping connecting assembly is mounted on the stretching driving assembly. A driven sliding block is slidably installed in the connecting sliding groove, clamping connecting assemblies are also installed on the driven sliding block, the two clamping connecting assemblies are symmetrically distributed and used for clamping and fixing the two ends of a metal wire, and a tension sensor and a touch display screen are fixedly installed at the top of the operation base. The clamping connection assembly located on the driven sliding block is fixedly connected with the tension sensor; according to the utility model, stable clamping and accurate control of the metal wire in the stretching process can be ensured, an intuitive displacement measurement means can be provided, and the reliability of a measurement result is effectively enhanced.

Description

Technical Field

[0001] The utility model relates to a high-precision controllable tensiometer for measuring the Young's modulus of a metal wire, belonging to the technical field of measuring the Young's modulus of a metal wire. Background Art

[0002] Measuring the Young's modulus of a metal wire is a process of determining the physical quantity of the metal wire's ability to resist deformation under the action of an external force. When a metal wire undergoes a small elongation under the action of a tensile force, the ratio of the tensile force it receives to the cross-sectional area is called stress, and the ratio of the elongation to the original length is called strain. The Young's modulus is the ratio of stress to strain, reflecting the stress required for unit deformation of the metal wire and being an important indicator for measuring the stiffness of the material. In the existing measurement process of the Young's modulus of a metal wire, the method of hanging weights is usually adopted. By changing the mass of the weights, the tensile force applied to the metal wire is adjusted, and then the elongation of the metal wire is observed and recorded to calculate the Young's modulus. However, the mass of the weights is usually discrete, resulting in a jump in the change of the tensile force, making it difficult to achieve continuous and smooth adjustment, thus affecting the measurement accuracy. During the experiment, it is necessary to frequently add and remove weights, which not only increases the operation steps of the experiment, but also prolongs the experiment time and reduces the experiment efficiency. Moreover, the placement position of the weights, the mass error of the weights, and the dynamic error caused by the addition and removal of weights may all have an adverse impact on the experimental results.

[0003] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0004] The purpose of the present utility model is to provide a high-precision controllable tensiometer for measuring the Young's modulus of a metal wire in order to solve the above problems, which can ensure the stable clamping and precise control of the metal wire during the stretching process, can provide an intuitive displacement measurement means, and effectively enhances the reliability of the measurement results.

[0005] The present utility model realizes the above object through the following technical solutions. A high-precision controllable tension meter for measuring the Young's modulus of a metal wire includes an operation base. A limit installation groove and a connection sliding groove are formed at the top of the operation base. The stretching drive assembly is installed in the limit installation groove, and the clamping connection assembly is installed on the stretching drive assembly. A driven slider is slidably installed in the connection sliding groove, and the clamping connection assembly is also installed on the driven slider. The two clamping connection assemblies are symmetrically distributed, and the two clamping connection assemblies are used for clamping and fixing the two ends of the metal wire. A tension sensor and a touch display screen are fixedly installed at the top of the operation base. The clamping connection assembly located on the driven slider is fixedly connected to the tension sensor. An indicating head is fixedly installed on the clamping connection assembly located on the stretching drive assembly. A vertical connection column is fixedly installed at the top of the operation base, and a scale plate is fixedly installed at the top of the vertical connection column. One end of the indicating head is horizontally corresponding to the scale plate.

[0006] Preferably, in order to enable the driving threaded rod to rotate in the limit installation groove through the first rotating joint by controlling the servo motor to start, the stretching drive assembly includes the servo motor and the driving threaded rod. The servo motor is fixed on the inner wall at one end of the limit installation groove, and the driving threaded rod is rotatably installed on the inner wall at the other end of the limit installation groove through the first rotating joint, and one end of the driving threaded rod is fixedly connected to the output shaft of the servo motor.

[0007] Preferably, in order to drive the threaded slider to slide in the limit installation groove by controlling the rotation of the driving threaded rod, the driving threaded rod is provided with the threaded slider. The threaded slider is slidably clamped in the limit installation groove, and a set of clamping connection assemblies is fixed on the threaded slider.

[0008] Preferably, in order to enable the square connection block to slide along with the threaded slider and the driven slider, the clamping connection assembly includes the square connection block and the bidirectional lead screw. The square connection blocks on the two clamping connection assemblies are respectively fixedly installed on the threaded slider and the driven slider.

[0009] Preferably, in order to enable the bidirectional lead screw to rotate in the installation clamping groove through the second rotating joint by controlling the screwing head, an installation clamping groove is formed on the side wall of the square connection block. The bidirectional lead screw is rotatably installed on the inner wall at one end of the installation clamping groove through the second rotating joint, and one end of the bidirectional lead screw rotatably passes through the square connection block and is fixedly installed with the screwing head.

[0010] Preferably, in order to enable the clamping slider to slide in the installation card slot by controlling the rotation of the bidirectional lead screw, the clamping slider is threadedly mounted on the bidirectional lead screw, and the clamping slider is slidably clamped in the installation card slot.

[0011] Preferably, in order to drive the two clamping sliders to slide in the installation card slot in opposite directions by controlling the rotation of the bidirectional lead screw, so that the first clamping plate and the second clamping plate approach or move away from each other, the number of clamping sliders is two, and the two clamping sliders are respectively located at the reverse thread ends of the bidirectional lead screw, and the first clamping plate and the second clamping plate are respectively fixedly mounted on the two clamping sliders.

[0012] Preferably, in order to make the clamping and fixing of the wire by the first clamping plate and the second clamping plate more firm through the tooth-shaped protrusions, the tooth-shaped protrusions are fixedly mounted on the inner walls of the first clamping plate and the second clamping plate.

[0013] The beneficial effects of the present utility model are as follows: Through the stretching drive assembly and the double-end clamping connection assembly, the stable clamping and precise control of the wire during the stretching process are ensured. Through the operation of the touch display screen, the user can easily realize the automation and visualization of the stretching process, improving the convenience and accuracy of the test. And through the tensile force sensor, the real-time and accurate monitoring of the tensile force is realized. The combination of the scale plate and the indicating head provides an intuitive displacement measurement method, effectively enhancing the reliability of the measurement result and having stronger practicability. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0015] Figure 2 It is a schematic diagram of the installation structure of the driven slider of the present utility model.

[0016] Figure 3 It is a schematic diagram of the structure of the stretching drive assembly of the present utility model.

[0017] Figure 4 It is a schematic diagram of the installation structure of the first clamping plate and the second clamping plate of the present utility model.

[0018] Figure 5 It is a schematic diagram of the installation structure of the tooth-shaped protrusion on the first clamping plate of the present utility model.

[0019] In the figure: 1. Operating base; 2. Tensile drive assembly; 201. Servo motor; 202. Drive threaded rod; 203. First rotating joint; 204. Threaded slider; 3. Clamping connection assembly; 301. Square connection block; 302. Bi-directional lead screw; 303. Second rotating joint; 304. Screwing head; 305. Clamping slider; 306. First clamping plate; 307. Second clamping plate; 308. Tooth-shaped protrusion; 4. Driven slider; 5. Tension sensor; 6. Touch display screen; 7. Indicator head; 8. Vertical connecting column; 9. Scale plate. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-5 As shown, a high-precision controllable tensile force meter for measuring the Young's modulus of a metal wire includes an operating base 1. A limit installation groove and a connection sliding groove are provided at the top of the operating base 1. A tensile drive assembly 2 is installed in the limit installation groove, and a clamping connection assembly 3 is installed on the tensile drive assembly 2. A driven slider 4 is slidably installed in the connection sliding groove, and a clamping connection assembly 3 is also installed on the driven slider 4. The two clamping connection assemblies 3 are symmetrically distributed. The two clamping connection assemblies 3 are used to clamp and fix both ends of the metal wire. After clamping and fixing both ends of the metal wire, the tensile drive assembly 2 is controlled to realize the automatic stretching of the metal wire. A tension sensor 5 and a touch display screen 6 are fixedly installed at the top of the operating base 1. The clamping connection assembly 3 located on the driven slider 4 is fixedly connected to the tension sensor 5. An indicator head 7 is fixedly installed on the clamping connection assembly 3 located on the tensile drive assembly 2. A vertical connecting column 8 is fixedly installed at the top of the operating base 1, and a scale plate 9 is fixedly installed at the top of the vertical connecting column 8. One end of the indicator head 7 is horizontally corresponding to the scale plate 9. The high-precision controllable tensile force meter also integrates an intelligent control system and a high-precision measurement algorithm. A microprocessor is built into the operating base 1, which is responsible for processing the data real-time fed back by the tension sensor 5, and combining the accurate position information of the scale plate 9 and the indicator head 7, so as to directly deduce the Young's modulus value. And the touch display screen 6 is not only used to display the measurement data, but also allows the user to set test parameters, such as preloading force, stretching rate, and target displacement, etc.

[0022] Such as Figure 3As shown, the stretching drive assembly 2 includes a servo motor 201 and a driving threaded rod 202. The servo motor 201 is fixed on the inner wall at one end of the limit installation groove. The driving threaded rod 202 is rotatably installed on the inner wall at the other end of the limit installation groove through a first rotating joint 203. One end of the driving threaded rod 202 is fixedly connected to the output shaft of the servo motor 201. A threaded slider 204 is installed on the driving threaded rod 202. The threaded slider 204 is slidably clamped in the limit installation groove. A set of clamping connection assemblies 3 is fixed on the threaded slider 204. The servo motor 201 serves as a power source. Its high-precision speed and position control characteristics enable the stretching process to be precisely executed according to preset parameters. Through the first rotating joint 203, the driving threaded rod 202 is stably installed at both ends of the limit installation groove, effectively transmitting the power of the servo motor 201. The threaded slider 204 closely cooperates with the driving threaded rod 202. Its sliding clamping not only ensures the smooth movement of the slider but also prevents offset caused by vibration or external forces. The clamping connection assembly 3 is firmly fixed on the threaded slider 204 and moves synchronously with the movement of the threaded slider 204, realizing stable clamping and precise stretching of one end of the wire, providing a solid foundation for the measurement of Young's modulus.

[0023] As Figures 3-5 shown, the clamping connection assembly 3 includes a square connection block 301 and a bidirectional lead screw 302. The square connection blocks 301 on the two sets of clamping connection assemblies 3 are respectively fixedly installed on the threaded slider 204 and the driven slider 4. An installation card slot is opened on the side wall of the square connection block 301. The bidirectional lead screw 302 is rotatably installed on the inner wall at one end of the installation card slot through a second rotating joint 303. One end of the bidirectional lead screw 302 rotates through the square connection block 301 and is fixedly installed with a screwing head 304. A clamping slider 305 is threadedly installed on the bidirectional lead screw 302. The clamping slider 305 is slidably clamped in the installation card slot. The number of clamping sliders 305 is two. The two clamping sliders 305 are respectively located at the reverse thread ends of the bidirectional lead screw 302. A first clamping plate 306 and a second clamping plate 307 are respectively fixedly installed on the two clamping sliders 305. Tooth-shaped protrusions 308 are fixedly installed on the inner walls of the first clamping plate 306 and the second clamping plate 307. The opening of the installation card slot enables the bidirectional lead screw 302 to be accurately positioned and rotate smoothly. Through the operation of the screwing head 304, the user can easily adjust the rotation of the bidirectional lead screw 302, thereby controlling the relative positions of the two clamping sliders 305. The first clamping plate 306 and the second clamping plate 307 on the clamping slider 305 are made of high-strength materials. The design of the tooth-shaped protrusions 308 on the inner walls not only increases the contact area with the wire but also provides stronger biting force, effectively preventing the wire from slipping or being damaged during the stretching process. It not only ensures the stability of clamping but also improves the accuracy and reliability of the test.

[0024] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0025] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-precision controllable tensile force meter for measuring the Young's modulus of a metal wire, characterized in that: It includes an operation base (1). A limit installation groove and a connection sliding groove are provided at the top of the operation base (1). A stretching drive assembly (2) is installed in the limit installation groove. A clamping connection assembly (3) is installed on the stretching drive assembly (2). A driven slider (4) is slidably installed in the connection sliding groove. The clamping connection assembly (3) is also installed on the driven slider (4). The two groups of clamping connection assemblies (3) are symmetrically distributed. The two groups of clamping connection assemblies (3) are used for clamping and fixing the two ends of a metal wire. A tension sensor (5) and a touch display screen (6) are fixedly installed at the top of the operation base (1). The clamping connection assembly (3) located on the driven slider (4) is fixedly connected to the tension sensor (5). An indicating head (7) is fixedly installed on the clamping connection assembly (3) located on the stretching drive assembly (2). A vertical connection column (8) is fixedly installed at the top of the operation base (1). A scale plate (9) is fixedly installed at the top of the vertical connection column (8). One end of the indicating head (7) is horizontally corresponding to the scale plate (9).

2. The high-precision controllable tensile force meter for measuring the Young's modulus of a metal wire according to claim 1, wherein: The stretching drive assembly (2) includes a servo motor (201) and a driving threaded rod (202). The servo motor (201) is fixed on the inner wall at one end of the limit installation groove. The driving threaded rod (202) is rotatably installed on the inner wall at the other end of the limit installation groove through a first rotating joint (203). And one end of the driving threaded rod (202) is fixedly connected to the output shaft of the servo motor (201).

3. The high-precision controllable tensile force meter for measuring the Young's modulus of a metal wire according to claim 2, wherein: A threaded slider (204) is installed on the driving threaded rod (202). The threaded slider (204) is slidably clamped in the limit installation groove. One group of clamping connection assemblies (3) is fixed on the threaded slider (204).

4. The high-precision controllable tensiometer for measuring the Young's modulus of a metal wire according to claim 3, characterized in that: The clamping connection assembly (3) includes a square connection block (301) and a bidirectional lead screw (302). The square connection blocks (301) on the two groups of clamping connection assemblies (3) are respectively fixedly installed on the threaded slider (204) and the driven slider (4).

5. The high-precision controllable tensiometer for measuring the Young's modulus of a metal wire according to claim 4, wherein: An installation clamping groove is provided on the side wall of the square connection block (301). The bidirectional lead screw (302) is rotatably installed on the inner wall at one end of the installation clamping groove through a second rotating joint (303). One end of the bidirectional lead screw (302) rotatably passes through the square connection block (301) and is fixedly installed with a screwing head (304).

6. The high-precision controllable tensiometer for measuring the Young's modulus of a metal wire according to claim 5, characterized in that: Clamping sliders (305) are threadedly installed on the bidirectional lead screw (302). The clamping sliders (305) are slidably clamped in the installation clamping groove.

7. The high-precision controllable tensiometer for measuring the Young's modulus of a metal wire according to claim 6, wherein: The number of the clamping sliders (305) is two. The two clamping sliders (305) are respectively located at the reverse thread ends of the bidirectional lead screw (302). A first clamping plate (306) and a second clamping plate (307) are respectively fixedly installed on the two clamping sliders (305).

8. The high-precision controllable tensiometer for measuring the Young's modulus of a metal wire according to claim 7, characterized in that: Tooth-shaped protrusions (308) are fixedly installed on the inner walls of the first clamping plate (306) and the second clamping plate (307).

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