Flange mechanical property testing device

Abstract

The utility model discloses a flange mechanical property testing device, and mainly relates to the field of mechanical property detection. Comprising a machine body, a fixed upper beam is arranged at the top of the machine body, a movable lower beam in sliding fit with the machine body is arranged below the fixed upper beam, clamping seats are symmetrically arranged on the fixed upper beam and the movable lower beam, chucks are symmetrically and slidably connected to the clamping seats, swing rods are symmetrically and rotationally connected to the two sides of the clamping seats, and one end of each swing rod is rotationally connected with a connecting rod; the connecting rod is rotationally connected with the chuck, a power arm for driving the swing rod to rotate is arranged on the clamping base, and a reset spring is arranged between the swing rod and the clamping base. The clamp has the advantages that the technical problems that when an existing clamp is used for clamping a sample, operation is inconvenient, and clamping force is not accurately controlled can be solved, sliding driving of the chuck is achieved through rotation control over the swing rod, and detection convenience and accuracy are further improved.

Description

Technical Field

[0001] The utility model relates to the field of mechanical performance testing, in particular to a flange mechanical performance testing device. Background Art

[0002] After the production of flanges and other components is completed, the mechanical properties of the flange materials need to be tested. Generally, samples are obtained by taking samples from the finished flanges or producing samples together with the flanges, and then the samples are placed on a mechanical properties testing machine for tensile and other mechanical properties tests. During testing, existing mechanical properties testing machines generally use wedge-shaped clamps to clamp the two ends of the sample and then stretch the sample. When the wedge-shaped clamp is matched with the end of the sample, the clamp needs to be adjusted according to the size of the sample, which is very inconvenient to adjust and requires manual tools to operate. The control of the clamping force of the sample is not accurate enough, which affects the accuracy of the test results. Utility Model Content

[0003] The purpose of the utility model is to provide a flange mechanical properties testing device, which can solve the technical problems of inconvenient operation and inaccurate control of clamping force when existing clamps clamp specimens. By controlling the rotation of the rocker arm, the sliding drive of the chuck is realized, thereby improving the convenience and accuracy of the chuck's operation of clamping the specimen, simplifying the operation steps, and further improving the convenience and accuracy of detection.

[0004] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical solutions:

[0005] A flange mechanical properties testing device comprises a machine body, a fixed upper beam is provided on the top of the machine body, a movable lower beam which slides with the machine body is provided below the fixed upper beam, clamps are symmetrically provided on the fixed upper beam and the movable lower beam, the clamps comprise a clamping seat, a clamp is symmetrically slidably connected to the clamping seat, a rocker is symmetrically rotatably connected on both sides of the clamping seat, one end of the rocker is rotatably connected to a connecting rod, the connecting rod is rotatably connected to the clamp, a power arm which drives the rocker to rotate is provided on the clamping seat, and a reset spring is provided between the rocker and the clamping seat.

[0006] Furthermore, the clamping seat is provided with a power groove, the power arm is arranged in the power groove, one end of the rocker arm extends into the power groove, and the return spring is located between the rocker arm and the side wall of the power groove.

[0007] Furthermore, a rotating shaft is symmetrically connected in the power slot, the power arm is fixed on the side of the rotating shaft, the end of the power arm is in contact with the rocker arm, a motor is provided in the power slot, one of the rotating shafts is connected to the output shaft of the motor, and both rotating shafts are provided with gears that mesh with each other.

[0008] Furthermore, the end of the power arm is rotatably connected to a roller, and the roller is in rotational contact with the rocker arm.

[0009] Furthermore, the clamping seat is provided with a slide groove, the clamping head is slidably connected in the slide groove, and the longitudinal section of the slide groove is trapezoidal.

[0010] Furthermore, the fixed upper beam and the movable lower beam are symmetrically provided with fixing sleeves, the clamping seat is provided with a fixing rod, and the fixing rod is threadedly connected to the inside of the fixing sleeve.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The structure of the utility model is provided with a fixed upper beam and a movable lower beam on the machine body, and a clamp is symmetrically provided on the two. The clamp includes a clamping seat, and a clamp head is symmetrically connected to the clamping seat in a sliding manner. The clamp head is driven to slide by the connection of the swing rod and the connecting rod rotating on both sides of the clamping seat, thereby realizing the clamping operation of the sample end quickly and accurately. Then, the movable lower beam is used to slide downward to realize the stretching operation of the sample, which simplifies the operation steps, makes the clamping of the sample end more convenient, and improves the efficiency and convenience of the test;

[0013] 2. A power arm that drives the rocker arm to rotate is provided on the clamping seat, and a reset spring is provided between the rocker arm and the clamping seat. Such a structure only requires the use of the power arm to rotate and drive the rocker arm, so that the rocker arm can be rotated and the chuck can be driven to slide under the connection of the connecting rod. During this process, the reset spring is compressed. After the test is completed, the power arm is reset, and the rocker arm is also reset and rotated under the action of the reset spring, automatically releasing the clamping operation on the end of the specimen, making it more convenient to clamp and separate the specimen. No human intervention is required during clamping, and it is automatically achieved by the power arm, further improving the convenience and accuracy of specimen clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attachment Figure 1 It is a three-dimensional structural diagram of the utility model.

[0015] Attachment Figure 2 It is a front view of the present utility model.

[0016] Attachment Figure 3 This utility model is attached Figure 2 Cross-sectional view in the AA direction.

[0017] Attachment Figure 4 This utility model is attached Figure 3 Cross-sectional view in the BB direction.

[0018] Attachment Figure 5 This utility model is attached Figure 4 Cross-sectional view in CC direction.

[0019] Attachment Figure 6 This utility model is attached Figure 4 A partial enlarged view of area D in the middle.

[0020] Reference numerals shown in the accompanying drawings:

[0021] 1. Machine body; 2. Fixed upper beam; 3. Moving lower beam; 4. Clamping seat; 5. Chuck; 6. Rocker; 7. Connecting rod; 8. Power arm; 9. Return spring; 10. Power slot; 11. Rotating shaft; 12. Motor; 13. Gear; 14. Roller; 15. Slide; 16. Fixed sleeve; 17. Fixed rod. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the contents of this invention, those skilled in the art may make various changes or modifications to the present invention, and that these equivalent forms also fall within the scope defined in this application.

[0023] Reference Figure 1 and Figure 2The present invention is a flange mechanical properties testing device, the main structure of which includes a body 1, the bottom of the body 1 is fixed to the ground by welding or anchor bolts, and a fixed upper beam 2 is welded or integrally formed on the top of the body 1, and a movable lower beam 3 is provided below the fixed upper beam 2 to slide with the body 1. The movable lower beam 3 is driven and slid by an existing driving structure, and specifically can be driven by a screw sliding method to realize the movement of the movable lower beam 3 relative to the fixed upper beam 2, thereby realizing the tensile test of the sample between the two. The fixed upper beam 2 and the movable lower beam 3 are symmetrically provided with a clamp, and the clamp is used to clamp the end of the sample. The clamp includes a clamping seat 4, which is the main part of the clamp. It is detachably connected to the fixed upper beam 2 and the movable lower beam 3, so that different types of clamps can be replaced when testing different types of samples. The clamping seat 4 is symmetrically slidably connected with a clamp 5, and the end of the sample is clamped between the two clamps 5. Preferably, the opposite sides of the two clamps 5 are provided with anti-slip stripes, so that the end of the sample is not easily broken when clamped. Sliding, improving the firmness of clamping, ensuring the accuracy of the test results, the two sides of the clamping seat 4 are symmetrically connected to the swing rod 6 through a pin or hinge rotation, one end of the swing rod 6 is connected to the connecting rod 7 through a pin or hinge rotation, and the connecting rod 7 is connected to the chuck 5 through a pin or hinge rotation. When the swing rod 6 rotates, the chuck 5 can be driven to slide laterally along the clamping seat 4 under the rotation connection of the connecting rod 7, thereby realizing the sliding drive of the chuck 5 and realizing automatic clamping of the sample end. The clamping seat 4 is provided with a driving swing rod 6 rotates the power arm 8, and a reset spring 9 is provided between the rocker arm 6 and the clamping seat 4. The reset spring 9 is preferably a torsion spring. When the rocker arm rotates, the torsion spring is compressed to generate a reset elastic force. Such a structure only needs to use the power arm 8 to control the rotation of the rocker arm 6 to achieve automatic control of the sliding distance of the chuck 5, making the clamping operation of the sample end more convenient. When clamping samples of different models and sizes, it can automatically adapt and adjust without manual adjustment, thereby improving the convenience and accuracy of sample clamping.

[0024] Preferably, refer to Figure 4 and Figure 6 A power groove 10 is provided on the clamping seat 4, and both ends of the power groove 10 pass through the clamping seat 4. The power arm 8 is arranged in the power groove 10, and one end of the rocker arm 6 extends into the power groove 10 after passing through the penetrating side. The reset spring 9 is located between the rocker arm 6 and the side wall of the power groove 10. This structure hides components such as the power arm 8 and the reset spring 9 in the power groove 10, reducing the possibility of interference with the position of the power arm 8 due to external force, ensuring the stability of the sample clamping operation, and thus ensuring the accuracy of data detection.

[0025] Preferably, refer to Figure 4and Figure 5 , the power slot 10 is symmetrically connected to a rotating shaft 11 through a bearing, the power arm 8 is welded or bolted to the side of the rotating shaft 11, and the end of the power arm 8 is in contact with the rocker 6. Such a structure uses the rotating shaft 11 to drive the power arm 8 to rotate, so that its end contacts the rocker 6 and pushes the rocker 6 to rotate, thereby realizing the rotation control of the rocker 6. The structure is simple, and it only needs to preset the rotation angle of the rotating shaft 11 in advance to meet the clamping requirements of different types of samples. A motor 12 is welded or bolted in the power slot 10, one of the rotating shafts 11 is welded or bolted to the output shaft of the motor 12, and mutually meshing gears 13 are welded or bolted on the two rotating shafts 11. Such a structure uses the motor 12 to drive the two rotating shafts 11 to rotate in opposite directions, thereby causing the power arms 8 on the two rotating shafts 11 to swing in opposite directions, realizing the relative or opposite rotation drive of the rocker 6 on both sides, and then using the same motor 12 to simultaneously drive the relative or opposite sliding of the chucks 5 on both sides, simplifying the complexity of the driving structure and improving the efficiency and convenience of the driving operation.

[0026] Preferably, the end of the power arm 8 is rotatably connected to a roller 14 through a bearing, and the roller 14 is in rotational contact with the rocker arm 6. Such a structure enables the power arm 8 to contact the end of the rocker arm 6 and push it to rotate, and the rotating roller 14 is in rotational contact with the rocker arm 6, so that the relative sliding of the contact position between the two is converted into rotational contact of the roller 14, thereby reducing the relative friction at the contact position and improving the smoothness of the rotational drive of the rocker arm 6.

[0027] Preferably, refer to Figure 3 The clamping seat 4 is provided with a slide groove 15, and the chuck 5 is slidably connected in the slide groove 15. The longitudinal section of the slide groove 15 is trapezoidal. The setting of the trapezoidal slide groove 15 can guide the sliding process of the chuck 5, thereby improving the firmness of the sliding structure of the chuck 5. At the same time, the trapezoidal structure can make the chuck 5 not easy to escape from the slide groove 15, thereby ensuring the firmness of the clamping operation on the end of the sample after the chuck 5 slides.

[0028] Preferably, a fixing sleeve 16 is symmetrically welded or bolted on the fixed upper beam 2 and the movable lower beam 3, and a fixing rod 17 is welded or integrally formed on the clamping seat 4, and the fixing rod 17 is threadedly connected to the inside of the fixing sleeve 16. Such a structure only requires rotating the fixing rod 17 to separate it from the fixing sleeve 16 under the action of the threaded connection when replacing the clamp, further improving the convenience of replacing the clamp.

[0029] Working principle: The structure of the utility model is provided with a fixed upper beam 2 and a movable lower beam 3 on the machine body 1, and a clamp is symmetrically provided on the two. The clamp includes a clamping seat 4, and a clamp head 5 is symmetrically connected to the clamping seat 4 in a sliding manner. The sliding drive of the clamp head 5 is realized by connecting the swing rod 6 and the connecting rod 7 rotating on both sides of the clamping seat 4, thereby realizing the fast and accurate clamping operation of the clamp on the end of the sample. After that, the movable lower beam 3 is slid downward to realize the stretching operation of the sample, which simplifies the operation steps, makes the clamping of the end of the sample more convenient, and improves the efficiency and convenience of the detection; the clamping seat 4 is provided with a driving swing rod 6 A reset spring 9 is provided between the rotating power arm 8, the rocker arm 6 and the clamping seat 4. Such a structure only needs to use the power arm 8 to rotate and drive the rocker arm 6, so that the rocker arm 6 can drive the chuck 5 to slide under the connection of the connecting rod 7 after the rocker arm 6 rotates. During this process, the reset spring 9 is compressed. After the test is completed, the power arm 8 is reset, and the rocker arm 6 is also reset and rotated under the action of the reset spring 9, automatically releasing the clamping operation on the end of the sample, making it more convenient to clamp and separate the sample. No human intervention is required during clamping, and it is automatically achieved by using the power arm 8, further improving the convenience and accuracy of sample clamping.

Claims

1. A flange mechanical property testing device, comprising a body (1), a fixed upper beam (2) provided on the top of the body (1), a movable lower beam (3) slidably engaged with the body (1) provided below the fixed upper beam (2), and characterized in that: Clamps are symmetrically provided on the fixed upper beam (2) and the movable lower beam (3), and the clamps include a clamping seat (4), a clamping head (5) is symmetrically connected to the clamping seat (4) in a sliding manner, and a rocker (6) is symmetrically connected to both sides of the clamping seat (4) in a rotational manner, one end of the rocker (6) is rotationally connected to a connecting rod (7), and the connecting rod (7) is rotationally connected to the clamping head (5), and a power arm (8) for driving the rocker (6) to rotate is provided on the clamping seat (4), and a reset spring (9) is provided between the rocker (6) and the clamping seat (4).

2. A flange mechanical properties testing device according to claim 1, characterized in that: The clamping seat (4) is provided with a power groove (10), the power arm (8) is arranged in the power groove (10), one end of the swing rod (6) extends into the power groove (10), and the return spring (9) is located between the swing rod (6) and the side wall of the power groove (10).

3. A flange mechanical properties testing device according to claim 2, characterized in that: A rotating shaft (11) is symmetrically connected to the power slot (10), the power arm (8) is fixed to the side of the rotating shaft (11), the end of the power arm (8) is in contact with the rocker (6), a motor (12) is provided in the power slot (10), one of the rotating shafts (11) is connected to the output shaft of the motor (12), and the two rotating shafts (11) are both provided with gears (13) that mesh with each other.

4. A flange mechanical properties testing device according to claim 3, characterized in that: The end of the power arm (8) is rotatably connected to a roller (14), and the roller (14) is in rotational contact with the rocker (6).

5. The flange mechanical properties testing device according to claim 1, characterized in that: The clamping seat (4) is provided with a slide groove (15), the clamping head (5) is slidably connected in the slide groove (15), and the longitudinal section of the slide groove (15) is trapezoidal.

6. The flange mechanical properties testing device according to claim 1, characterized in that: The fixed upper beam (2) and the movable lower beam (3) are symmetrically provided with fixed sleeves (16), the clamping seat (4) is provided with a fixed rod (17), and the fixed rod (17) is threadedly connected to the inside of the fixed sleeve (16).

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