CN215574261U

CN215574261U - Constant-pressure tension testing machine

Info

Publication number: CN215574261U
Application number: CN202121164490.0U
Authority: CN
Inventors: 李奎民; 池奉浪
Original assignee: Suzhou Yuanyangzhi Precision Machinery Co ltd
Current assignee: Suzhou Yuanyangzhi Precision Machinery Co ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2022-01-18
Anticipated expiration: 2031-05-27

Abstract

The utility model discloses a constant-pressure tension testing machine which comprises a workbench and four supporting legs arranged at the bottom end of the workbench, wherein a fixing mechanism is arranged on one side of the top end of the workbench, a pulling mechanism which is matched with the fixing mechanism and used for clamping a tubular object and has the same structure as the fixing mechanism is arranged on the workbench, the pulling mechanism comprises a moving block which is arranged on the workbench in a sliding manner, two connecting rods are arranged at the top ends of the moving block, connecting plates are arranged at the top ends of the two connecting rods, third threaded rods are arranged on the connecting plates, and lifting blocks which are matched with the moving block and used for clamping the tubular object are arranged at the bottom ends of the third threaded rods; the utility model can test the same batch of tubular objects at the same distance by pulling, and the tension test is the constant pressure test, thereby being convenient for testing the large batch of tubular objects on the same production line, and not needing to adjust the pressure consistently, leading the tubular objects to be tested under the condition of constant pressure, and improving the efficiency of the tubular object test.

Description

Constant-pressure tension testing machine

Technical Field

The utility model relates to a tension tester, in particular to a constant-pressure tension tester.

Background

The tensile testing machine is also called a tensile testing machine, is a mechanical stress testing machine for mechanical property tests such as stretching, compression, bending, shearing, peeling and the like on metal materials and non-metal materials, and has the following application fields: the device comprises a scientific research institute, a commodity inspection arbitration mechanism, a college and universities, and indispensable detection equipment for industries such as rubber, tires, plastics, wires and cables, shoemaking, leather, textile, packaging, building materials, petrifaction and aviation, and the like, material development, physical property tests, teaching research, quality control, feeding inspection, random inspection of a production line and the like.

When carrying out the tensile test to the tubular object, because present tensile test machine is inconvenient mostly fixes the tubular object, has influenced subsequent tensile test efficiency, and is not convenient for test the big batch tubular object of same body production line, has influenced the efficiency of filling test, therefore we improve this, provide the tensile test machine of a constant voltage.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a constant-pressure tension tester.

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model relates to a constant-pressure tension testing machine, which comprises a workbench and four supporting legs arranged at the bottom end of the workbench, wherein one side of the top end of the workbench is provided with a fixing mechanism, the workbench is provided with a pulling mechanism which is matched with the fixing mechanism, is used for clamping a tubular object and has the same structure as the fixing mechanism, the pulling mechanism comprises a moving block arranged on the workbench in a sliding manner, the top end of the moving block is provided with two connecting rods, the top ends of the two connecting rods are provided with connecting plates, the connecting plates are provided with third threaded rods, the bottom end of each third threaded rod is provided with a lifting block which is matched with the moving block and is used for clamping the tubular object, the opposite ends of the lifting block and the connecting plates are provided with mounting grooves, the top end of the workbench is provided with a first constant-pressure mechanism and a second constant-pressure mechanism which are used for constant-pressure tension testing and have the same structure, the first constant-pressure mechanism comprises a fixing plate arranged on the workbench, the fixing plate is provided with a second threaded rod, one end of the second threaded rod is provided with an installation block, the installation block is provided with an extension block, one end of the extension block is provided with a pressure sensor towards one end of the pulling mechanism, and the other end of the extension block is provided with a first rotating wheel.

As a preferred technical scheme of the utility model, a T-shaped sliding groove is formed in the top end of the workbench, a first threaded rod is arranged in the sliding groove, a sliding block matched with the sliding groove is connected to the first threaded rod in a threaded mode, a stepping motor is installed on one side of the workbench, and an output shaft of the stepping motor is fixedly connected with one end of the first threaded rod.

As a preferred technical scheme of the utility model, the top end of the workbench is provided with two dovetail grooves, and dovetail blocks matched with the dovetail grooves are arranged on the mounting blocks on the first constant pressure mechanism and the second constant pressure mechanism.

As a preferable technical solution of the present invention, the pulling mechanism further includes a reinforcing component for tightly squeezing the tubular object, the reinforcing component includes a squeezing ring disposed on the moving block, and the lifting block is provided with a fixing sleeve.

As a preferable technical scheme of the utility model, the inner thread of the fixing sleeve is connected with a squeezing rod, and the bottom end of the squeezing rod is provided with a tip for squeezing the end part of a tubular object.

As a preferable technical scheme of the utility model, one end of the third threaded rod, which is far away from the lifting block, is provided with a second rotating wheel, and the third threaded rod is connected with the lifting block through a bearing.

The utility model has the beneficial effects that: when the constant-pressure tensile testing machine is used for carrying out tensile testing on a tubular object, a fixing mechanism and a pulling mechanism are arranged on a workbench, two ends of the tubular object are respectively placed into a moving block on the fixing mechanism and the pulling mechanism and a mounting groove on a fixing plate, a second rotating wheel is rotated, the second rotating wheel drives a third threaded rod to rotate, the third threaded rod is in threaded engagement with a connecting plate, the third threaded rod pushes a lifting block to move downwards until the two ends of the tubular object are clamped, the two ends of the tubular object are conveniently clamped, so that the subsequent tensile testing efficiency of the tubular object is improved, a first constant-pressure mechanism and a second constant-pressure mechanism are arranged on the workbench, pressure sensors are arranged on the first constant-pressure mechanism and the second constant-pressure mechanism, the first rotating wheel is rotated to drive the second threaded rod to rotate, and the second threaded rod is in threaded engagement with the fixing plate, the second threaded rod is made to push the installation block to move, the installation block pushes the extension block and the pressure sensor to move, the pressure sensor is started when moving to the pulling mechanism, an output shaft of the stepping motor drives the first threaded rod to rotate, the first threaded rod is meshed with the sliding block to enable the sliding block to move inside the sliding groove, the stepping motor is closed until a moving block on the pulling mechanism is in contact with the pressure sensor, the distance between the pressure sensor and the moving block on the pulling mechanism is fixed, namely the same batch of tubular objects are tested at the same distance in the pulling process, the tension test is constant pressure, the large batch of tubular objects on the same production line can be conveniently tested, the pressure can be adjusted in a consistent mode, the tubular objects can be tested under the constant pressure condition, and the efficiency of the tubular object test is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural diagram of a constant pressure tensile testing machine according to the present invention;

FIG. 2 is a schematic view of a drawing mechanism of the constant pressure tensile testing machine according to the present invention;

FIG. 3 is a schematic view of a first constant pressure mechanism of the constant pressure tensile testing machine according to the present invention;

fig. 4 is a schematic structural view of a first threaded rod of a constant pressure tensile testing machine according to the present invention.

In the figure: 1. supporting legs; 2. a work table; 3. a stepping motor; 4. a chute; 5. a slider; 6. a first constant pressure mechanism; 601. mounting blocks; 602. a second threaded rod; 603. a fixing plate; 604. a first runner; 605. a protruding block; 606. a pressure sensor; 7. a dovetail groove; 8. a second constant pressure mechanism; 9. a pulling mechanism; 901. a moving block; 902. a connecting rod; 903. a lifting block; 904. a connecting plate; 905. a third threaded rod; 906. a second runner; 907. fixing a sleeve; 908. a tightening rod; 909. a squeezing ring; 10. a fixing mechanism; 11. a dovetail block; 12. a first threaded rod.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-4, the constant pressure tension tester of the present invention comprises a workbench 2 and four support legs 1 arranged at the bottom end of the workbench 2, a fixing mechanism 10 is arranged at one side of the top end of the workbench 2, a pulling mechanism 9 which is matched with the fixing mechanism 10 for clamping a tubular object and has the same structure as the fixing mechanism 10 is arranged on the workbench 2, the pulling mechanism 9 comprises a moving block 901 which is slidably arranged on the workbench 2, two connecting rods 902 are arranged at the top end of the moving block 901, a connecting plate 904 is arranged at the top end of the two connecting rods 902, a third threaded rod 905 is arranged on the connecting plate 904, a lifting block 903 which is matched with the moving block 901 for clamping a tubular object is arranged at the bottom end of the third threaded rod 905, mounting grooves are arranged at the opposite ends of the lifting block 903 and the connecting plate 904, the arc length in the mounting grooves is one third of the whole arc, a first constant pressure mechanism 6 and a second constant pressure mechanism 8 which have the same structure and are used for constant pressure tension testing are arranged at the top end of the workbench 2, the first constant pressure mechanism 6 comprises a fixing plate 603 arranged on the workbench 2, a second threaded rod 602 is arranged on the fixing plate 603, one end of the second threaded rod 602 is provided with a mounting block 601, the mounting block 601 is provided with an extending block 605, one end of the extending block 605, facing the pulling mechanism 9, is provided with a pressure sensor 606, and the other end of the extending block 605 is provided with a first rotating wheel 604.

Wherein, spout 4 of T shape is seted up on the top of workstation 2, the inside of spout 4 is equipped with first threaded rod 12, threaded connection has slider 5 with spout 4 assorted on the first threaded rod 12, step motor 3 is installed to one side of workstation 2, step motor 3's output shaft and the one end fixed connection of first threaded rod 12, step motor 3's output shaft drives first threaded rod 12 and rotates, first threaded rod 12 makes slider 5 drive pulling mechanism 9 move with 5 threaded engagement of slider, the stability of pulling mechanism 9 motion has been improved.

Wherein, two dovetail grooves 7 have been seted up on the top of workstation 2, be equipped with on the installation piece 601 on first constant voltage mechanism 6 and the second constant voltage mechanism 8 with dovetail 7 assorted forked tail piece 11, first constant voltage mechanism 6 and second constant voltage mechanism 8 move, and forked tail piece 11 moves in dovetail 7's inside, has improved the stability of first constant voltage mechanism 6 and the 8 motion in-process of second constant voltage mechanism.

The pulling mechanism 9 further includes a reinforcing component for tightly extruding the tubular object, the reinforcing component includes a tightening ring 909 disposed on the moving block 901, a fixing sleeve 907 is disposed on the lifting block 903, a tightening rod 908 is connected to the internal thread of the fixing sleeve 907, the bottom end of the tightening rod 908 is provided with a tip for tightly extruding the end of the tubular object, the tightening rod 908 is rotated, the tightening rod 908 is engaged with the fixing sleeve 907 to enable the tightening rod 908 to move downward, and the end of the tubular object is extruded into the tightening ring 909 to be further fixed and clamped.

Wherein, the one end of keeping away from elevator 903 on third threaded rod 905 is equipped with second runner 906, and third threaded rod 905 is connected through the bearing with elevator 903, rotates second runner 906, and second runner 906 drives third threaded rod 905 and rotates, is convenient for rotate third threaded rod 905, and the bearing makes third threaded rod 905 pivoted more smooth.

The working principle is as follows: when a tensile force test is performed on a tubular object, a fixing mechanism 10 and a pulling mechanism 9 are arranged on a workbench 2, two ends of the tubular object are respectively placed into a moving block 901 on the fixing mechanism 10 and a moving block 9 on the pulling mechanism 9 and a mounting groove on a fixing plate 603, a second rotating wheel 906 is rotated, the second rotating wheel 906 drives a third threaded rod 905 to rotate, the third threaded rod 905 is in threaded engagement with a connecting plate 904, the third threaded rod 905 pushes a lifting block 903 to move downwards until the two ends of the tubular object are clamped, so that the two ends of the tubular object are clamped conveniently, the subsequent tensile force test efficiency on the tubular object is improved, a first constant pressure mechanism 6 and a second constant pressure mechanism 8 are arranged on the workbench 2, pressure sensors 606 are arranged on the first constant pressure mechanism 6 and the second constant pressure mechanism 8, the first rotating wheel 604 is rotated, the first rotating wheel 604 drives the second threaded rod 602 to rotate, the second threaded rod 602 is in threaded engagement with the fixed plate 603, so that the second threaded rod 602 pushes the mounting block 601 to move, the mounting block 601 pushes the extension block 605 and the pressure sensor 606 to move, the stepping motor 3 is started when the pressure sensor 606 moves to face the pulling mechanism 9, the output shaft of the stepping motor 3 drives the first threaded rod 12 to rotate, the first threaded rod 12 is engaged with the slider 5 so that the slider 5 moves inside the chute 4 until the moving block 901 on the pulling mechanism 9 contacts the pressure sensor 606 to close the stepping motor 3, the distance between the pressure sensor 606 and the moving block 901 on the pulling mechanism 9 is constant, that is, the same batch of tubular objects are tested at the same distance when being pulled, and the tension test is a constant pressure test, which is convenient for testing large batch of tubular objects on the same production line, and does not need to adjust pressure consistently, the pipe is tested under the condition of constant pressure, and the efficiency of the pipe test is improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A constant-pressure tension testing machine comprises a workbench (2) and four supporting legs (1) arranged at the bottom end of the workbench (2), and is characterized in that a fixing mechanism (10) is arranged on one side of the top end of the workbench (2), a pulling mechanism (9) which is matched with the fixing mechanism (10) and used for clamping a tubular object and has the same structure as the fixing mechanism (10) is arranged on the workbench (2), the pulling mechanism (9) comprises a moving block (901) which is slidably arranged on the workbench (2), two connecting rods (902) are arranged at the top end of the moving block (901), a connecting plate (904) is arranged at the top end of each connecting rod (902), a third threaded rod (905) is arranged on each connecting plate (904), a lifting block (903) which is matched with the moving block (901) and used for clamping the tubular object is arranged at the bottom end of each third threaded rod (905), and mounting grooves are formed in opposite ends of the lifting block (903) and the connecting plate (904), the top of workstation (2) is equipped with and is used for constant voltage test pulling force and first constant voltage mechanism (6) and second constant voltage mechanism (8) that the structure is the same, first constant voltage mechanism (6) are including establishing fixed plate (603) on workstation (2), be equipped with second threaded rod (602) on fixed plate (603), the one end of second threaded rod (602) is equipped with installation piece (601), be equipped with on installation piece (601) and stretch out piece (605), the one end of stretching out piece (605) is equipped with pressure sensor (606) towards the one end of pulling mechanism (9), the other end of stretching out piece (605) is equipped with first runner (604).

2. The constant-pressure tensile testing machine according to claim 1, wherein a T-shaped chute (4) is formed at the top end of the worktable (2), a first threaded rod (12) is arranged inside the chute (4), a sliding block (5) matched with the chute (4) is connected to the first threaded rod (12) in a threaded manner, a stepping motor (3) is installed on one side of the worktable (2), and an output shaft of the stepping motor (3) is fixedly connected with one end of the first threaded rod (12).

3. The constant-pressure tension testing machine as claimed in claim 1, wherein the top end of the worktable (2) is provided with two dovetail grooves (7), and the mounting blocks (601) on the first constant-pressure mechanism (6) and the second constant-pressure mechanism (8) are provided with dovetail blocks (11) matched with the dovetail grooves (7).

4. The constant pressure tensile testing machine according to claim 1, wherein said pulling mechanism (9) further comprises a reinforcing member for squeezing the tubular object, said reinforcing member comprises a squeezing ring (909) disposed on the moving block (901), and said lifting block (903) is provided with a fixing sleeve (907).

5. The constant pressure tensile tester as claimed in claim 4, wherein the fixing sleeve (907) is internally threaded with a tightening rod (908), and the bottom end of the tightening rod (908) is provided with a tip for tightening the end of the tubular object.

6. The constant-pressure tensile testing machine as claimed in claim 1, wherein a second rotating wheel (906) is arranged at one end of the third threaded rod (905) far away from the lifting block (903), and the third threaded rod (905) is connected with the lifting block (903) through a bearing.