Tension testing machine

Abstract

The utility model relates to the technical field of tension testing machines, and discloses a tension testing machine which comprises a base, and a measuring mechanism is arranged above the base; the measuring mechanism comprises a U-shaped plate, the bottom surface of the U-shaped plate is fixedly connected with the upper surface of the base, the inner wall of the U-shaped plate is rotatably connected with two sets of bidirectional threaded rods, the outer surfaces of the two sets of bidirectional threaded rods are jointly in threaded connection with two clamping frames, and the upper surface of each clamping frame is fixedly connected with a fixing plate. The side faces, close to each other, of the two fixing plates are jointly and fixedly connected with a tension sensor, and the upper surface of the base is fixedly connected with a controller. According to the tensile testing machine, a bidirectional threaded rod, an infrared distance measuring sensor, a tensile force sensor, a controller, a clamping frame, an experimental sample main body, a fixed column, a conveying belt and a micro motor are arranged, so that the device can be in a stable state in a tensile force experiment process; meanwhile, accurate measurement of the pulling force and the stretching movement distance of the experimental sample main body is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of tension testing machines, in particular to a tension testing machine. Background Art

[0002] The tensile testing machine is also known as the universal material testing machine. The universal testing machine is a mechanical force testing machine used to perform mechanical property tests such as static load, stretching, compression, bending, shearing, tearing and peeling on various materials. It is suitable for various physical and mechanical property tests of plastic plates, pipes, special-shaped materials, plastic films, rubber, wires and cables, steel, glass fiber and other materials for material development.

[0003] The utility model with the existing authorization announcement number CN219830597U discloses a tensile testing machine, including: a fixed rod and an operating table; an extension rod, the extension rod is slidably connected to the inner side of the fixed rod; a fixing ring, the fixing ring is fixedly installed at the bottom of one side of the fixed rod and the top of one side of the extension rod respectively; a mounting rod, the mounting rod is threadedly connected to the inner side of the fixing ring, one end of the two sides of the mounting rod is fixedly installed with a rotating block, one side of the inner side of the mounting rod is fixedly installed with a spring, one end of the spring is fixedly installed with a sliding rod, one end of the sliding rod is fixedly installed with a splint, and one side of the splint is fixedly installed with an anti-slip pad.

[0004] By adopting the above technical scheme, the utility model provides a tensile testing machine, which cooperates with each other through structures such as a fixing ring, a mounting rod, a spring, a rotating block, a sliding rod, a clamping plate and an anti-slip pad. When in use, it can clamp the objects to be tested with different sizes at both ends, thereby increasing the adaptability of the device. However, according to the above technical scheme, the objects to be tested cannot be effectively kept in a stable state during the process of measuring their tensile force during use. At the same time, the existing device cannot accurately measure the stretching movement distance and the tensile force of the objects to be tested during use, further reducing the accuracy of the experimental data of the device.

[0005] Therefore, those skilled in the art provide a tensile testing machine to solve the problems raised in the above background technology. Utility Model Content

[0006] The purpose of the utility model is to provide a tensile testing machine to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A tensile testing machine comprises a base, and a measuring mechanism is arranged above the base;

[0009] The measuring mechanism includes a U-shaped plate, the bottom surface of the U-shaped plate is fixedly connected to the upper surface of the base, the inner wall of the U-shaped plate is rotatably connected with two groups of bidirectional threaded rods, the outer surfaces of the two groups of bidirectional threaded rods are commonly threadedly connected to two clamping frames, the upper surface of each clamping frame is fixedly connected with a fixing plate, the side surfaces of the two fixing plates close to each other are commonly fixedly connected with a tension sensor, the upper surface of the base is fixedly connected with a controller, the inside of the two clamping frames is commonly clamped with an experimental sample body, the inner wall of each clamping frame is threadedly connected with a fixing column, the outer surfaces of the two groups of bidirectional threaded rods are commonly transmission-connected with a conveyor belt, the right end of one of the bidirectional threaded rods is fixedly connected with a micro motor, and the upper surface of one of the fixing plates is fixedly connected with an infrared ranging sensor.

[0010] As a further solution of the utility model: two trapezoidal blocks are fixedly connected to the front side and the back side of the U-shaped plate, and the bottom surface of each of the trapezoidal blocks is fixedly connected to the upper surface of the base.

[0011] As a further solution of the utility model: a fixing frame is fixedly connected to the outer surface of the controller, and the bottom surface of the fixing frame is fixedly connected to the upper surface of the base.

[0012] As a further solution of the utility model: the inner wall of the base is threadedly connected with two groups of fastening bolts, the outer surface of each group of the fastening bolts is sleeved with two gaskets, and the bottom end of each gasket is in contact with the upper surface of the base.

[0013] As a further solution of the utility model: two fixing rings are fixedly connected to the outer surface of the tension sensor, and ends of the two fixing rings that are far away from each other are fixedly connected to side surfaces of the two fixing plates that are close to each other.

[0014] As a further solution of the utility model: three fixing disks are arranged on the outer side of the micro motor, and the outer surface of each fixing disk is fixedly connected to the right end of the bidirectional threaded rod.

[0015] As a further solution of the utility model: the outer surface of each of the bidirectional threaded rods is fixedly connected to a bearing, and the outer surface of each of the bearings is fixedly connected to the inner wall of the U-shaped plate.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model is provided with a bidirectional threaded rod, an infrared distance measuring sensor, a tension sensor, a controller, a clamping frame, an experimental sample body, a fixed column, a conveyor belt and a micro motor, which can ensure that the device is in a stable state during the tension test, and at the same time realize the accurate measurement of the tension and the stretching movement distance of the experimental sample body. The experimental sample body that needs to be tested for tension is placed inside the two clamping frames, and then the staff uses the fixed column to fix the experimental sample body, and then the staff uses the controller to control the micro motor to work. The micro motor drives the bidirectional threaded rod to rotate under the support of the U-shaped plate, and the bidirectional threaded rod is rotated. The conveyor belt rotates under the transmission action. Due to the threaded connection between the bidirectional threaded rod and the clamping frame, the rotation of the bidirectional threaded rod drives the two clamping frames to move away, which effectively ensures the stability of the experiment. The tension sensor is used to measure the tension during the movement. At the same time, the infrared transmitter in the infrared ranging sensor continuously sends infrared signals to the inner wall of the U-shaped plate. The infrared signal is reflected by the inner wall of the U-shaped plate. The reflected infrared signal is received by the receiver in the infrared ranging sensor, thereby realizing accurate measurement of the moving distance of the experimental sample body during the tension test, further improving the accuracy and efficiency of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a tensile testing machine;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of a conveyor belt in a tensile testing machine;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the main body of an experimental sample in a tensile testing machine;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of a micro motor in a tensile testing machine.

[0022] In the figure: 1. base; 2. measuring mechanism; 201. U-shaped plate; 202. controller; 203. fixing plate; 204. tension sensor; 205. bidirectional threaded rod; 206. clamping frame; 207. experimental sample body; 208. conveyor belt; 209. micro motor; 210. fixing column; 211. infrared ranging sensor; 3. fixing frame; 4. gasket; 5. fixing plate; 6. bearing; 7. fixing ring; 8. fastening bolt; 9. trapezoidal block. DETAILED DESCRIPTION

[0023] See also Figure 1-4A tensile testing machine includes a base 1. A measuring mechanism 2 is arranged above the base 1. The measuring mechanism 2 includes a U-shaped plate 201. The front and back sides of the U-shaped plate 201 are fixedly connected with two trapezoidal blocks 9. The bottom surface of each trapezoidal block 9 is fixedly connected to the upper surface of the base 1. The trapezoidal blocks 9 can be used to fix the U-shaped plate 201 to avoid the problem of shaking of the U-shaped plate 201 during use.

[0024] The bottom surface of the U-shaped plate 201 is fixedly connected to the upper surface of the base 1, and the inner wall of the U-shaped plate 201 is rotatably connected with two groups of bidirectional threaded rods 205. The outer surfaces of the two groups of bidirectional threaded rods 205 are commonly threadedly connected to two clamping frames 206. The outer surface of each bidirectional threaded rod 205 is fixedly connected with a bearing 6, and the outer surface of each bearing 6 is fixedly connected to the inner wall of the U-shaped plate 201. The bearing 6 can be used to fix the bidirectional threaded rod 205, thereby increasing the stability of the rotation of the bidirectional threaded rod 205.

[0025] The upper surface of each clamping frame 206 is fixedly connected to a fixing plate 203, and the side surfaces of the two fixing plates 203 close to each other are commonly fixedly connected to a tension sensor 204. The outer surface of the tension sensor 204 is fixedly connected to two fixing rings 7, and the ends of the two fixing rings 7 that are away from each other are respectively fixedly connected to the side surfaces of the two fixing plates 203 close to each other. The fixing rings 7 can be used to reinforce the tension sensor 204 to avoid the problem of the tension sensor 204 falling off during use, which further affects the measurement accuracy of the device.

[0026] The upper surface of the base 1 is fixedly connected to the controller 202, the outer surface of the controller 202 is fixedly connected to the fixing frame 3, the bottom surface of the fixing frame 3 is fixedly connected to the upper surface of the base 1, and the fixing frame 3 can be used to fix the controller 202 to avoid the problem of movement of the controller 202 during use.

[0027] The two clamping frames 206 are internally clamped with the experimental sample body 207, and the inner wall of the base 1 is threadedly connected with two groups of fastening bolts 8. The outer surface of each group of fastening bolts 8 is sleeved with two gaskets 4, and the bottom end of each gasket 4 is in contact with the upper surface of the base 1. The base 1 can be reinforced by the cooperation of the fastening bolts 8 and the gaskets 4 to avoid the problem of shaking of the entire device during use.

[0028] The inner wall of each clamping frame 206 is threadedly connected to a fixing column 210, and the outer surfaces of the two groups of bidirectional threaded rods 205 are commonly connected to a conveyor belt 208. The right end of one of the bidirectional threaded rods 205 is fixedly connected to a micro motor 209, and the upper surface of one of the fixing plates 203 is fixedly connected to an infrared ranging sensor 211. Three fixing disks 5 are arranged on the outside of the micro motor 209, and the outer surface of each fixing disk 5 is fixedly connected to the right end of the bidirectional threaded rod 205. The fixing disk 5 can be used to fix and protect the conveyor belt 208 to prevent the conveyor belt 208 from falling off during use.

[0029] The working principle of the utility model is as follows: when in use, first connect the controller 202, the infrared distance sensor 211, the tension sensor 204 and the micro motor 209 to the power supply. When using the device, the staff adjusts the distance between the two clamping frames 206 according to the volume of the experimental sample body 207 to be tested, and then places the experimental sample body 207 inside the two clamping frames 206. Then, the experimental sample body 207 is fixed by the fixing column 210. At this time, the controller 202 is used to control the micro motor 209 to rotate. The rotation of the micro motor 209 drives one of the two-way threaded rods 205 to rotate under the support of the U-shaped plate 201. The two-way threaded rod 205 drives the remaining two-way threaded rod 205 to rotate under the transmission action of the conveyor belt 208. Since the two-way threaded rod 205 and the clamping frame 206 are threadedly connected, the rotation of the two-way threaded rod 205 drives the two clamping frames 206. The device moves away from the main body 207 of the experimental sample, thereby realizing the tension test of the main body 207 of the experimental sample, and at the same time, the tension of the tension sensor 204 is used to record the data. During the experiment, the device uses the controller 202 to control the infrared distance sensor 211 to work. The infrared transmitter in the infrared distance sensor 211 continuously emits infrared signals. The emitted infrared signals are reflected by the inner wall of the U-shaped plate 201, and the reflected infrared signals are received by the infrared receiver in the infrared distance sensor 211. As the data in the infrared distance sensor 211 continuously changes, the stretching movement distance and the tension indication of the main body 207 of the experimental sample during the tension test can be accurately measured. The bidirectional threaded rod 205 of the device effectively ensures that the experiment is in a stable state. At the same time, the device can realize the accurate measurement of the stretching movement distance and the tension of the main body 207 of the experimental sample, thereby further improving the use effect and work efficiency of the device.

[0030] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tensile testing machine, comprising a base (1), characterized in that: A measuring mechanism (2) is provided above the base (1); The measuring mechanism (2) comprises a U-shaped plate (201), the bottom surface of the U-shaped plate (201) being fixedly connected to the upper surface of the base (1), the inner wall of the U-shaped plate (201) being rotatably connected to two groups of bidirectional threaded rods (205), the outer surfaces of the two groups of bidirectional threaded rods (205) being commonly threadedly connected to two clamping frames (206), the upper surface of each clamping frame (206) being fixedly connected to a fixing plate (203), the side surfaces of the two fixing plates (203) being close to each other being commonly fixedly connected to a tension sensor (204), and the base The upper surface of (1) is fixedly connected to a controller (202), the interior of the two clamping frames (206) is commonly clamped with an experimental sample body (207), the inner wall of each clamping frame (206) is threadedly connected to a fixing column (210), the outer surfaces of the two groups of bidirectional threaded rods (205) are commonly transmission-connected to a conveyor belt (208), the right end of one of the bidirectional threaded rods (205) is fixedly connected to a micro motor (209), and the upper surface of one of the fixing plates (203) is fixedly connected to an infrared ranging sensor (211).

2. A tensile testing machine according to claim 1, characterized in that: Two trapezoidal blocks (9) are fixedly connected to the front side of the U-shaped plate (201) and the back side of the U-shaped plate (201), and the bottom surface of each trapezoidal block (9) is fixedly connected to the upper surface of the base (1).

3. A tensile testing machine according to claim 1, characterized in that: The outer surface of the controller (202) is fixedly connected to a fixing frame (3), and the bottom surface of the fixing frame (3) is fixedly connected to the upper surface of the base (1).

4. A tensile testing machine according to claim 1, characterized in that: The inner wall of the base (1) is threadedly connected with two groups of fastening bolts (8), and the outer surface of each group of the fastening bolts (8) is sleeved with two gaskets (4), and the bottom end of each gasket (4) is in contact with the upper surface of the base (1).

5. A tensile testing machine according to claim 1, characterized in that: Two fixing rings (7) are fixedly connected to the outer surface of the tension sensor (204), and ends of the two fixing rings (7) that are away from each other are fixedly connected to side surfaces of the two fixing plates (203) that are close to each other.

6. A tensile testing machine according to claim 1, characterized in that: Three fixing disks (5) are arranged on the outside of the micro motor (209), and the outer surface of each fixing disk (5) is fixedly connected to the right end of the bidirectional threaded rod (205).

7. A tensile testing machine according to claim 1, characterized in that: The outer surface of each bidirectional threaded rod (205) is fixedly connected to a bearing (6), and the outer surface of each bearing (6) is fixedly connected to the inner wall of the U-shaped plate (201).

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