CN219434497U

CN219434497U - Ring stiffness testing machine

Info

Publication number: CN219434497U
Application number: CN202320164978.6U
Authority: CN
Inventors: 陶英杰; 吕屾
Original assignee: Daqing Jiacheng Engineering Quality Inspection Co ltd
Current assignee: Daqing Jiacheng Engineering Quality Inspection Co ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-07-28
Anticipated expiration: 2033-02-09

Abstract

The utility model discloses a ring stiffness testing machine which comprises a rectangular frame and a pipe fitting, wherein a pressing plate is arranged in the rectangular frame, the upper end of the pressing plate is fixedly connected with a hydraulic cylinder, the upper end of the hydraulic cylinder fixedly penetrates through the rectangular frame, the inner bottom of the rectangular frame is fixedly connected with a workbench, the pipe fitting is positioned between the workbench and the pressing plate, two symmetrically arranged object placing grooves are formed in one side, opposite to the pressing plate, of the workbench, hollow grooves communicated with the object placing grooves are formed in the pressing plate and the workbench, a driving mechanism is arranged in the hollow grooves, a movable block is connected onto the inner wall of the object placing groove in a sliding mode, one end, close to the pipe fitting, of the movable block penetrates through the object placing groove, and a wedge-shaped block is fixedly connected to one side, close to the pipe fitting, of the movable block. The utility model has the advantages of simple structure and convenient use, realizes the tensile strength and flattening test of the pipe, and reduces the number of driving parts by half, thereby saving the production and later maintenance cost.

Description

Ring stiffness testing machine

Technical Field

The utility model relates to the technical field of testers, in particular to a ring stiffness tester.

Background

The ring stiffness tester is widely applied to the measurement of the ring stiffness of thermoplastic plastic pipes and glass fiber reinforced plastic pipes with annular cross sections, meets the requirements of PE double-wall corrugated pipes, winding pipes and various pipe standards, and can finish the tests of the ring stiffness, ring flexibility, flatness, bending, weld tension and the like of the pipes. The device has the functions of key speed regulation, test force displacement digital display, peak value holding, automatic damage shutdown, overcurrent and overload protection.

The prior application number is: the utility model patent of CN201821383529.6 provides a ring stiffness testing machine, which comprises a frame, a workbench horizontally arranged on the frame, a horizontal upper pressing plate positioned above the workbench and a driving mechanism … … for driving the upper pressing plate to move in the vertical direction, wherein the pipe fitting can be conveniently and rapidly positioned, and the pipe fitting can be prevented from radially moving in the pressing process, but the testing machine adopts a large number of air cylinders and motors to realize experimental operation, so that the production and research cost is improved, the later maintenance cost of a user is also improved, and the comparison is improved.

Disclosure of Invention

The utility model aims to solve the problems that a large number of air cylinders and motors are adopted to realize experimental operation, so that the production and research cost is increased, the later maintenance cost of users is also increased, and the comparison is improved.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a ring stiffness testing machine, includes rectangular frame and pipe fitting, be equipped with the clamp plate in the rectangular frame, the upper end fixedly connected with pneumatic cylinder of clamp plate, the upper end of pneumatic cylinder is fixed to run through rectangular frame, the interior bottom fixedly connected with workstation of rectangular frame, the pipe fitting is located between workstation and the clamp plate, the relative one side of workstation and clamp plate all is equipped with two symmetrical thing grooves of putting that set up, all be equipped with in clamp plate and the workstation with put thing groove communicating hollow groove, be equipped with actuating mechanism in the hollow inslot, sliding connection has the movable block on the inner wall of putting thing groove, the one end that the movable block is close to the pipe fitting runs through putting the thing groove, one side fixedly connected with wedge that the movable block is close to the pipe fitting, the part of wedge extends to in the pipe fitting.

Preferably, the driving mechanism comprises a bidirectional screw rod which is rotationally connected in the hollow groove, two ends of the bidirectional screw rod respectively penetrate through the hollow groove and the movable block and are rotationally connected with the inner wall of the storage groove, the bidirectional screw rod is in threaded connection with the movable block, servo motors are fixedly connected to the outer walls of the workbench and the pressing plate, the tail ends of output shafts of the two servo motors respectively penetrate through the pressing plate and the workbench and are fixedly connected with the bidirectional screw rod, and the workbench and the pressing plate are rotationally connected with the output shafts of the servo motors.

Preferably, both ends of clamp plate all fixedly connected with connecting block, the one end that the clamp plate was kept away from to the connecting block is equipped with the spread groove, be equipped with the gyro wheel in the spread groove, the both ends of gyro wheel rotate with the inner wall of spread groove respectively and are connected, the part of gyro wheel runs through the spread groove and offsets with rectangular frame's inner wall.

Preferably, a second guide rod is inserted in the movable block in a sliding way, and two ends of the second guide rod respectively penetrate through the movable block and are rotatably connected with the inner wall of the storage groove.

Preferably, the upper end of the pressing plate is fixedly connected with four first guide rods which are distributed in a rectangular mode, and the upper ends of the first guide rods penetrate through the rectangular frame in a sliding mode.

Preferably, the front surface of the rectangular frame is fixedly connected with scale marks.

The beneficial effects are that:

1. firstly, a servo motor on a workbench is started to drive a bidirectional screw rod to rotate, the bidirectional screw rod drives two movable blocks to move towards the direction of a pipe fitting through the action of threaded engagement, the movable blocks drive wedge-shaped blocks to extend into the pipe fitting and clamp and fix the pipe fitting, so that the pipe fitting is prevented from loosening, then a hydraulic cylinder is started to drive a pressing plate to descend, and the pipe fitting is pressed down through the pressing plate, so that a flattening test is carried out on the pipe fitting;

2. meanwhile, a servo motor on the pressing plate is started to drive a bidirectional screw rod to rotate, so that the wedge-shaped block clamps and fixes a pipe fitting (the principle is as above and is not repeated here), the hydraulic cylinder is started to drive the pressing plate to ascend, the pipe fitting can be subjected to a tensile strength test, an operator can intuitively obtain the height dimension through a scale mark, and when the pipe fitting is tested by using the ring stiffness tester, the size of the pipe fitting and the stroke of the pressing plate can be intuitively observed.

Drawings

FIG. 1 is a schematic structural view of a ring stiffness tester according to the present utility model;

FIG. 2 is a schematic diagram of a front view of a ring stiffness tester according to the present utility model;

FIG. 3 is a schematic view of the structure of the A part of the ring stiffness tester;

fig. 4 is a schematic diagram of a side sectional structure of a workbench of the ring stiffness tester.

In the figure: the device comprises a rectangular frame 1, scale marks 2, a movable block 3, a workbench 4, a pipe fitting 5, a bidirectional screw rod 6, a wedge block 7, a second guide rod 8, a servo motor 9, a pressing plate 10, a first guide rod 11, a hydraulic cylinder 12, a connecting block 13 and a roller 14.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, a ring stiffness testing machine comprises a rectangular frame 1 and a pipe fitting 5, wherein the front surface of the rectangular frame 1 is fixedly connected with a scale mark 2, so that an operator can intuitively obtain the height dimension, a pressing plate 10 is arranged in the rectangular frame 1, the pipe fitting 5 is pressed down, two ends of the pressing plate 10 are fixedly connected with connecting blocks 13, rollers 14 are arranged at the ends of the connecting blocks 13, which are far away from the pressing plate 10, connecting grooves are formed in the connecting grooves, rollers 14 are arranged in the connecting grooves, the stability of the pressing plate 10 during lifting is maintained, two ends of the rollers 14 are respectively connected with the inner wall of the connecting grooves in a rotating manner, and parts of the rollers 14 penetrate through the connecting grooves and are propped against the inner wall of the rectangular frame 1;

in this embodiment, four first guide rods 11 in rectangular distribution are fixedly connected to the upper end of the pressing plate 10 for keeping the pressing plate 10 linearly up and down, the upper end of the first guide rods 11 slidably penetrates through the rectangular frame 1, the upper end of the pressing plate 10 is fixedly connected with a hydraulic cylinder 12 for driving the pressing plate 10 to lift, the upper end of the hydraulic cylinder 12 fixedly penetrates through the rectangular frame 1, a workbench 4 is fixedly connected to the inner bottom of the rectangular frame 1 for placing a pipe fitting 55, the pipe fitting 5 is located between the workbench 4 and the pressing plate 10, and two symmetrically arranged storage grooves are formed in one side, opposite to the pressing plate 10, of the workbench 4;

in this embodiment, hollow grooves communicated with the storage groove are respectively arranged in the pressing plate 10 and the workbench 4, a driving mechanism is arranged in the hollow grooves, the driving mechanism comprises a bidirectional screw rod 6 rotationally connected in the hollow grooves and used for driving the movable block 3 to move, two ends of the bidirectional screw rod 6 respectively penetrate through the hollow grooves and the movable block 3 and are rotationally connected with the inner wall of the storage groove, the bidirectional screw rod 6 is in threaded connection with the movable block 3, servo motors 9 are fixedly connected to the outer walls of the workbench 4 and the pressing plate 10 and used for driving the bidirectional screw rod 6 to rotate, the output shaft ends of the two servo motors 9 respectively penetrate through the pressing plate 10 and the workbench 4 and are fixedly connected with the bidirectional screw rod 6, and the workbench 4 and the pressing plate 10 are rotationally connected with the output shafts of the servo motors 9;

in the embodiment, a movable block 3 is slidably connected to the inner wall of the storage groove and is used for driving a wedge block 7 to move, a second guide rod 8 is slidably inserted into the movable block 3 and is used for keeping the movable block 3 to linearly move, two ends of the second guide rod 8 respectively penetrate through the movable block 3 and are rotatably connected with the inner wall of the storage groove, one end, close to a pipe fitting 5, of the movable block 3 penetrates through the storage groove, one side, close to the pipe fitting 5, of the movable block 3 is fixedly connected with the wedge block 7 and is used for clamping and fixing the pipe fitting 5, and part of the wedge block 7 extends into the pipe fitting 5;

in this embodiment, firstly, a servo motor 9 on a workbench 4 is started to drive a bidirectional screw rod 6 to rotate, the bidirectional screw rod 6 drives two movable blocks 3 to move towards the direction of a pipe fitting 5 through the action of threaded engagement, the movable blocks 3 drive wedge blocks 7 to extend into the pipe fitting 5 and clamp and fix the pipe fitting 5 to prevent the pipe fitting 5 from loosening, then a hydraulic cylinder 12 is started to drive a pressing plate 10 to descend, and the pipe fitting 5 is pressed down through the pressing plate 10, so that a flattening test is performed on the pipe fitting 5; meanwhile, the servo motor 9 on the pressing plate 10 is started to drive the bidirectional screw 6 to rotate, so that the wedge block 7 clamps and fixes the pipe fitting 5 (the principle is as above and is not repeated here), the hydraulic cylinder 12 is started to drive the pressing plate 10 to ascend, and then the pipe fitting 5 can be subjected to a tensile strength test, an operator can intuitively obtain the height dimension through the scale mark 2, and the size of the pipe fitting 5 and the stroke of the pressing plate 10 can be intuitively observed when the pipe fitting is tested by using the ring stiffness tester.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a ring rigidity testing machine, includes rectangular frame (1) and pipe fitting (5), its characterized in that: be equipped with clamp plate (10) in rectangular frame (1), the upper end fixedly connected with pneumatic cylinder (12) of clamp plate (10), the upper end of pneumatic cylinder (12) is fixed to run through rectangular frame (1), the interior bottom fixedly connected with workstation (4) of rectangular frame (1), pipe fitting (5) are located between workstation (4) and clamp plate (10), the relative one side of workstation (4) and clamp plate (10) all is equipped with two symmetrical thing grooves of putting that set up, all be equipped with in clamp plate (10) and workstation (4) with put the communicating hollow groove in thing groove, be equipped with actuating mechanism in the hollow groove, sliding connection has movable block (3) on the inner wall in thing groove, one end that movable block (3) is close to pipe fitting (5) runs through putting the thing groove, one side fixedly connected with wedge (7) that movable block (3) is close to pipe fitting (5), the part of wedge (7) extends to in pipe fitting (5).

2. A machine for testing loop stiffness as claimed in claim 1, wherein: the driving mechanism comprises a bidirectional screw (6) which is rotationally connected in a hollow groove, two ends of the bidirectional screw (6) respectively penetrate through the hollow groove and the movable block (3) and are rotationally connected with the inner wall of the storage groove, the bidirectional screw (6) is in threaded connection with the movable block (3), servo motors (9) are fixedly connected to the outer walls of the workbench (4) and the pressing plate (10), the tail ends of output shafts of the two servo motors (9) respectively penetrate through the pressing plate (10) and the workbench (4) and are fixedly connected with the bidirectional screw (6), and the workbench (4) and the pressing plate (10) are rotationally connected with the output shafts of the servo motors (9).

3. A machine for testing loop stiffness as claimed in claim 1, wherein: the two ends of the pressing plate (10) are fixedly connected with connecting blocks (13), one end, far away from the pressing plate (10), of each connecting block (13) is provided with a connecting groove, each connecting groove is internally provided with a roller (14), two ends of each roller (14) are respectively connected with the inner wall of each connecting groove in a rotating mode, and parts of each roller (14) penetrate through the connecting grooves and are propped against the inner wall of the rectangular frame (1).

4. A machine for testing loop stiffness as claimed in claim 1, wherein: the movable block (3) is internally and slidably inserted with a second guide rod (8), and two ends of the second guide rod (8) respectively penetrate through the movable block (3) and are rotatably connected with the inner wall of the storage groove.

5. A machine for testing loop stiffness as claimed in claim 1, wherein: the upper end of the pressing plate (10) is fixedly connected with four first guide rods (11) which are distributed in a rectangular mode, and the upper ends of the first guide rods (11) penetrate through the rectangular frame (1) in a sliding mode.

6. A machine for testing loop stiffness as claimed in claim 1, wherein: the front face of the rectangular frame (1) is fixedly connected with a scale mark (2).