Welded steel pipe bending test device

Abstract

The utility model relates to a welding steel pipe bending testing device, which comprises a working table, a first testing module and a second testing module, the first testing module and the second testing module are positioned on two sides of the working table, the first testing module is rotatably mounted on the working table, the second testing module is mounted on the working table in a sliding manner along the vertical direction, and the first testing module comprises a first clamping component; the second test module comprises a second clamping assembly, the first clamping assembly comprises a first installation position, and the second clamping assembly comprises a second installation position. By the adoption of the scheme, the bending testing device for the welded steel pipe can obviously check whether the steel pipe deforms or not by clamping the steel pipe and then applying force.

Description

Technical Field

[0001] This utility model relates to a welding steel pipe bending test device. Background Technology

[0002] Welded steel pipe is a commonly used metal pipe material. It is made by rolling steel plates or strips into cylindrical or other shapes and then welding the edges together.

[0003] Because welded steel pipes have weld seams, they are tested before being put into use to check the plasticity of the steel pipe material under stress and deformation, that is, how much deformation the material can withstand before fracture, and to effectively detect whether there are defects in the weld area, such as cracks, porosity, or lack of fusion. This is because the welded joint is subjected to large tensile and compressive stresses during bending, and any welding defect may cause the sample to fracture at this point. Furthermore, during the welding process, the area near the weld seam (called the heat-affected zone) may change its physical and chemical properties due to high temperatures.

[0004] Therefore, how to test the bending resistance of welded steel pipes has become a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a welded steel pipe bending test device that can clearly check whether the steel pipe has deformed by clamping the steel pipe and applying force.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a workbench, a first test module and a second test module located on both sides of the workbench, the first test module being rotatably mounted on the workbench, and the second test module being slidably mounted on the workbench in the vertical direction, the first test module including a first clamping component, the second test module including a second clamping component, the first clamping component including a first mounting position, and the second clamping component including a second mounting position.

[0007] The present invention is further configured such that: the first clamping assembly includes a bolt, a mounting base, an upper limit ring and a lower limit ring, the first mounting position is located between the upper limit ring and the lower limit ring, one end of the upper limit ring and the lower limit ring are fixedly connected to the mounting base, the bolt is inserted into the upper limit ring and threadedly engaged with the lower limit ring, and the second clamping assembly is the same as the first clamping assembly.

[0008] The present invention is further configured such that: the mounting base is provided with a storage cavity for placing bolts.

[0009] The utility model further sets up: second test module includes second installation disc, first screw rod, second screw rod and be used to drive first screw rod and second screw rod and carry out the drive module of rotation, first clamping assembly all is located in second installation disc and first screw rod and second screw rod are located at both sides of first clamping assembly and all are inserted workbench, first screw rod and second screw rod all are with second installation disc screw cooperation.

[0010] The utility model further sets up: the drive module includes the left gear with first screw rod fixed, the right gear with second screw rod fixed and the second motor with right gear fixed, left gear and right gear are mutually engaged.

[0011] The utility model further sets up: first test module includes first motor and first installation disc, first clamping assembly is located in first installation disc, first installation disc includes the pivot that projects towards down, pivot and first motor fixed connection.

[0012] The utility model further sets up: first test module still includes the first installation box that supplies first motor and is loaded, first installation box includes front mounting panel and rear mounting panel, front mounting panel and rear mounting panel all with workbench detachable connection.

[0013] Through adopting above-mentioned technical scheme, because first test module is rotationally connected with workbench, and second test module can be installed in workbench along up and down, therefore by installing the two ends of the welding steel pipe that needs to be tested on the first installation position of first clamping assembly, and installing the other end on the second installation position of second clamping assembly, the left and right sides of welding steel pipe are clamped, at this time, by rotating first test module or making second test module move up and down, at this time, one end of welding steel pipe will be driven to rotate or move, and the up and down movement is driven, so that the stress deformation is caused, at this time, whether the welding steel pipe after stress will appear rupture can be observed, and the bending resistance of welding steel pipe can be tested and understood. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in embodiment or prior art description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for ordinary skilled person in the art, other drawings can be obtained according to these drawings without paying creative labor.

[0015] Figure 1 It is the perspective view of the specific embodiment of the utility model;

[0016] Figure 2 It is the explosion drawing of the utility model;

[0017] Figure 3 is a sectional view of the utility model in the top view state;

[0018] Figure 4 is a sectional view of the utility model;

[0019] Figure 5 is Figure 2 is an enlarged view of A in the middle.

[0020] In the drawing: 1 - workbench;

[0021] 2 - first test module, 21 - first motor, 22 - first mounting disc, 221 - rotating shaft, 23 - first mounting box, 231 - front mounting plate, 232 - rear mounting plate;

[0022] 3 - second test module, 31 - second mounting disc, 32 - first screw rod, 33 - second screw rod, 34 - driving module, 341 - left gear, 342 - right gear, 343 - second motor;

[0023] 4 - first clamping assembly, 41 - first mounting position, 42 - bolt, 43 - mounting seat, 431 - storage cavity, 44 - upper limit ring, 45 - lower limit ring;

[0024] 5 - second clamping assembly, 51 - second mounting position. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] As Figures 1-5The utility model discloses a kind of welding steel pipe bending test devices, including workbench 1, first test module 2 and second test module 3 located at the both sides of workbench 1, the first test module 2 is rotatably installed on workbench 1, the second test module 3 is slidably installed on workbench 1 along up-down direction, the first test module 2 includes first clamping assembly 4, the second test module 3 includes second clamping assembly 5, the first clamping assembly 4 includes first installation site 41, the second clamping assembly 5 includes second installation site 51, since first test module 2 is rotatably connected with workbench 1, and second test module 3 can be slidably installed on workbench 1 along up-down direction, so by the two ends of welding steel pipe needing to be tested are installed on first installation site 41 of first clamping assembly 4, while the other end is installed on second installation site 51 of second clamping assembly 5, the left and right sides of welding steel pipe are clamped, at this time, by rotating first test module 2 or making second test module 3 move up and down, one end of welding steel pipe will be driven to rotate or move, and the up and down movement is driven to move, so that it is stressed to deform, at this time, whether the welding steel pipe after stress will appear rupture can be tested to understand the bending resistance of welding steel pipe.

[0027] Among them, the first clamping assembly 4 includes bolt 42, mounting seat 43, upper limit ring 44 and lower limit ring 45 made of rubber and other materials that can easily deform, the first installation site 41 is located between upper limit ring 44 and lower limit ring 45, one end of the upper limit ring 44 and the lower limit ring 45 is fixedly connected with the mounting seat 43, the bolt 42 is inserted into the upper limit ring 44 and threadedly cooperates with the lower limit ring 45, the second clamping assembly 5 is the same as the first clamping assembly 4, since the bolt 42 is inserted into the upper limit ring 44 and threadedly cooperates with the lower limit ring 45, after the welding steel pipe needing to be tested is placed between the upper limit ring 44 and the lower limit ring 45, at this time, by rotating the bolt 42, the one end of the upper limit ring 44 and the lower limit ring 45 cannot be opened by the action of the bolt 42, while the other end is fixedly connected with the mounting seat 43, so that one end of the welding steel pipe can be stably placed in the first installation site 41 and will not be separated from the first clamping assembly 4, and when the welding steel pipe needs to be taken out, at this time, by reversing the bolt 42, the bottom of the bolt 42 can be taken out from the lower limit ring 45, so that the welding steel pipe can be taken out from the space between the upper limit ring 44 and the lower limit ring 45 on the side where the bolt 42 is located.

[0028] Among them, the mounting seat 43 is provided with a storage cavity 431 for placing the bolt 42, so when the first locking assembly is not needed to be started, at this time, the bolt 42 can be directly rotated and taken out from between the upper limit ring 44 and the lower limit ring 45 and placed in the storage cavity 431, thereby reducing the possibility of losing the bolt 42, and multiple bolts 42 can be stored in the storage cavity 431 for backup.

[0029] The second test module 3 comprises a second mounting disc 31, a first screw rod 32, a second screw rod 33 and a driving module 34 for driving the first screw rod 32 and the second screw rod 33 to rotate. The first clamping assembly 4 is located in the second mounting disc 31, and the first screw rod 32 and the second screw rod 33 are respectively located on the two sides of the first clamping assembly 4 and are respectively inserted into the workbench 1. The first screw rod 32 and the second screw rod 33 are in threaded cooperation with the second mounting disc 31. Since the first screw rod 32 and the second screw rod 33 are respectively inserted into the two sides of the first clamping assembly 4 and are in threaded cooperation with the second mounting disc 31, the second mounting disc 31 cannot rotate compared with the workbench 1 in the process of driving the first screw rod 32 and the second screw rod 33 to rotate by the driving module 34. At the same time, the rotation of the first screw rod 32 and the second screw rod 33 can drive the second mounting disc 31 to move up and down. Therefore, after the two sides of the welded steel pipe are clamped by the first clamping assembly 4 and the second clamping assembly 5, the driving module 34 is started to drive the second mounting disc 31 to move up and down, so that one side of the welded steel pipe is lifted. At this time, the force on one end of the welded steel pipe can be brought into deformation to realize the test of the bending performance of the welded steel pipe.

[0030] The driving module 34 comprises a left gear 341 fixed with the first screw rod 32, a right gear 342 fixed with the second screw rod 33 and a second motor 343 fixed with the right gear 342. The left gear 341 and the right gear 342 are in meshing with each other. The second motor 343 is started to drive the right gear 342 to rotate. Since the left gear 341 and the right gear 342 are in meshing with each other, the rotation of the right gear 342 can drive the left gear 341 to rotate. Since the left gear 341 is fixed on the first screw rod 32 and the right gear 342 is fixed on the second screw rod 33, the starting of the second motor 343 can indirectly drive the first screw rod 32 and the second screw rod 33 to rotate and drive the second mounting disc 31 to move up and down.

[0031] In addition, the first test module 2 comprises a first motor 21 and a first mounting disc 22. The first clamping assembly 4 is located in the first mounting disc 22. The first mounting disc 22 comprises a rotating shaft 221 protruding downward. The rotating shaft 221 is fixedly connected with the first motor 21 by a key connection or the like. After the first motor 21 is started, the rotating shaft 221 can rotate to drive the first mounting disc to rotate and drive the part of the welded steel pipe in the first clamping assembly to rotate so as to be deformed under stress and be tested for bending performance.

[0032] The first test module 2 further comprises a first installation box 23 for accommodating the first motor 21, the first installation box 23 comprises a front installation plate 231 and a rear installation plate 232, the front installation plate 231 and the rear installation plate 232 are detachably connected with the workbench 1 by bolts or the like, since the front installation plate 231 and the rear installation plate 232 are detachably connected with the workbench 1, the first installation box 23 mounted on the workbench 1 can support the placement of the first motor 21, and when the first installation box 23 needs to be cleaned, the first installation box 23 can be directly disassembled by detaching the front installation plate 231 and the rear installation plate 232.

[0033] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A welded steel pipe bend testing apparatus characterized by: The utility model provides a test module, including workbench, first test module and second test module at both sides of workbench, first test module rotates installation in workbench, second test module is along the up and down direction and is slidably installed in workbench, first test module includes first clamping assembly, second test module includes second clamping assembly, first clamping assembly includes first installation site, second clamping assembly includes second installation site, first clamping assembly includes bolt, mounting seat, upper limit ring and lower limit ring, first installation site is located between upper limit ring and lower limit ring, one end of upper limit ring and lower limit ring is fixedly connected with mounting seat, bolt is inserted in upper limit ring and is in threaded cooperation with lower limit ring, second clamping assembly is same with first clamping assembly.

2. A welded steel pipe bend testing apparatus as defined in claim 1, wherein: The mounting seat is internally provided with a storage cavity for placing the bolt.

3. A welded steel pipe bend testing apparatus as defined in claim 1, wherein: The second test module includes a second mounting disc, a first screw rod, a second screw rod, and a drive module for driving the first screw rod and the second screw rod to rotate, the first clamping assembly is located in the second mounting disc, the first screw rod and the second screw rod are respectively located on both sides of the first clamping assembly and are respectively inserted into the workbench, and the first screw rod and the second screw rod are in threaded cooperation with the second mounting disc.

4. A welded steel pipe bend testing apparatus as defined in claim 3, wherein: The drive module includes a left gear fixed with the first screw rod, a right gear fixed with the second screw rod, and a second motor fixed with the right gear, and the left gear and the right gear are in meshing engagement with each other.

5. A welded steel pipe bend testing apparatus as defined in claim 1, wherein: The first test module includes a first motor and a first mounting disc, the first clamping assembly is located in the first mounting disc, the first mounting disc includes a downwardly protruding rotating shaft, and the rotating shaft is fixedly connected with the first motor.

6. A welded steel pipe bend testing apparatus as defined in claim 5, wherein: The first test module further includes a first mounting box for accommodating the first motor, the first mounting box includes a front mounting plate and a rear mounting plate, and the front mounting plate and the rear mounting plate are detachably connected with the workbench.

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