Efficient bending tester for metal material

Abstract

The utility model discloses an efficient bending tester for a metal material, the efficient bending tester comprises a working platform and three fixed adjusting assemblies arranged on the working platform, the first fixed adjusting assembly enables an abutting plate to ascend and descend relative to a mounting plate through a mounting block, the abutting plate, a vertical screw rod and an adjusting nut, and the abutting plate is fixed through the adjusting nut; further, adaptive fixed installation of samples of various specifications is realized; the second fixing and adjusting assembly is arranged at the center of a bending disc rotating relative to the working platform, adjustable fixing of the sample is achieved through a tightening motor and tightening type steel tongs, and the tightening type steel tongs can adapt to samples of various specifications; the third fixing and adjusting assembly is arranged on the edge of the bending disc, adaptive clamping and fixing of the tail end of a sample are achieved through the driving motor and the downward pressing type steel clamp, and therefore the bending testing machine can conduct adaptive fixing on samples of various specifications and is convenient to install, too much space does not need to be reserved on the two sides of the bending testing machine, and the cost is reduced. The device space requirement is low.

Description

Technical Field

[0001] This application relates to the technical field of steel bar performance testing devices, and in particular to an efficient bending testing machine for metal materials. Background Art

[0002] A steel bar bending testing machine is a special device for performing cold bending tests and plane reverse bending tests on steel bars. Generally, it includes a main frame, a hydraulic system, a specimen fixture, a measurement and control system, and a safety protection device, etc. Among them: The main frame mainly bears the test loading and measurement systems to ensure stability and safety during the test process; The hydraulic system mainly provides the test loading force and controls the loading rate and loading method (static load, dynamic load, etc.); The specimen fixture is used to clamp the steel bar specimen to ensure the stability and correct loading position of the specimen during the test process; The measurement and control system mainly includes sensors, a data acquisition system, and a controller, which are used to measure and record data such as force and displacement during the test process, and control the test loading method and rate; The safety protection device mainly includes an emergency stop button, a limit switch, etc., to ensure the safety of operators and equipment.

[0003] At the top of the working platform of a traditional steel bar bending testing machine, there is a steel bar fixing block. The steel bar fixing block is fixedly connected to the working platform, and a sample steel bar is arranged inside the steel bar fixing block. When performing a steel bar bending test, it is necessary to insert the sample steel bar into the specimen fixture along the steel bar fixing block for fixation. Such a structure has the following defects: First, it cannot adapt to various specifications of steel bars. Once the diameter of the steel bar is larger than the inner diameter of the steel bar fixing block, it cannot be inserted, and once the diameter of the steel bar is smaller than the inner diameter of the steel bar fixing block, it is difficult to play a fixing and limiting role; Second, this horizontal insertion installation method has high requirements for the working space, because horizontal insertion necessarily means gradually inserting one end of the steel bar along the steel bar fixing block. Therefore, it is necessary to leave an installation space larger than the length of the steel bar on one side of the steel bar bending testing machine.

[0004] Therefore, there are still many defects in traditional steel bar bending testing machines, and it is necessary to propose a new technical solution to solve the problems existing in the prior art. Summary of the Utility Model

[0005] This application provides an efficient bending testing machine for metal materials to solve the problem of poor adaptability of existing bending testing machines.

[0006] To achieve the above object, this application provides the following technical solutions:

[0007] The present application provides an efficient bending testing machine for metal materials, which includes a working platform. A first fixed adjustment component and a bending disc are relatively and spacedly arranged on the upper surface of the working platform. The bending disc is connected to a bending motor below the working platform. A second fixed adjustment component is arranged at the center of the bending disc, and a third fixed adjustment component is arranged at the edge of the bending disc. The first fixed adjustment component includes a mounting block arranged on the working platform and a butting plate arranged above the mounting block. Vertical screws are arranged around the mounting block, and mounting holes adapted to the vertical screws are arranged at the four corners of the butting plate. An adjusting nut is configured on each vertical screw. An installation channel for installing a rod-shaped sample is formed between the butting plate and the mounting block. The second fixed adjustment component includes a tightening motor and a tightening type steel clamp installed at the output end of the tightening motor. The third fixed adjustment component includes a driving motor and a pressing type steel clamp installed at the output end of the driving motor. The mounting block, the tightening type steel clamp and the pressing type steel clamp cooperate to realize the installation and fixation of the rod-shaped sample.

[0008] In the above technical solution, further, the bending disc is rotatably connected to the working platform. The tightening motor is installed at the center of the bending disc. The output end of the tightening motor is connected to a central tightening screw. The central tightening screw passes through the bottom of the tightening type steel clamp, and a limiting ring is arranged at the end of the central tightening screw passing through the tightening type steel clamp.

[0009] Further, the tightening type steel clamp includes a first clamping jaw and a second clamping jaw arranged oppositely. The first clamping jaw and the second clamping jaw cooperate to complete the clamping of the rod-shaped sample. The bottom of the first clamping jaw is fixed on the bending disc, and the bottom of the second clamping jaw is fixed on a sliding plate. A sliding groove adapted to the sliding plate is arranged on the bending disc.

[0010] Further, a fixed movable block is arranged at the bottom of the driving motor. The fixed movable block is arranged on the bending disc. The output end of the driving motor passes through the fixed movable block and is connected to one end of a vertically arranged pressing screw. A pressing type steel clamp is threadedly and adaptively installed on the pressing screw. The pressing type steel clamp is arranged inside the fixed movable block and is slidably connected to the inner wall of the fixed movable block. The pressing type steel clamp includes an upper clamping jaw and a lower clamping jaw arranged on the pressing screw.

[0011] Further, a first arc-shaped groove is arranged on the plate surface of the butting plate facing the mounting block, and a second arc-shaped groove is arranged on the surface of the mounting block facing the butting plate. The first arc-shaped groove and the second arc-shaped groove are arranged oppositely to form an installation channel with a fusiform cross-section.

[0012] Further, anti-slip pads are arranged on the groove walls of the first arc-shaped groove and the second arc-shaped groove.

[0013] Further, a protective cover is configured on the working platform. One side of the protective cover is rotatably connected to the working platform, and the other side is snap-connected to the working platform. The first fixed adjustment component, the second fixed adjustment component and the third fixed adjustment component are arranged in the protective cover.

[0014] Compared with the prior art, the present application has at least the following beneficial effects:

[0015] Based on further analysis and research of the problems of the prior art, it is recognized that the existing bending testing machine cannot adapt to samples of various specifications and is inconvenient to install, resulting in a high space requirement for the bending testing machine. Therefore, the present application enables the bending testing machine to adapt to samples of various specifications and be convenient to install by setting three fixed adjustment components, reducing the space requirement of the bending testing machine. The first fixed adjustment component is arranged on the working platform. Through the mounting block, the abutting plate, the vertical screw rod and the adjusting nut, the abutting plate can rise and fall relative to the mounting plate and be fixed by the adjusting nut, thereby realizing the adaptive fixed installation of samples of various specifications. The second fixed adjustment component is arranged at the center of the bending disc that rotates relative to the working platform. The adjustable fixation of the sample is realized through the tightening motor and the tightening type steel pliers, and the tightening type steel pliers can adapt to samples of various specifications. The third fixed adjustment component is arranged at the edge of the bending disc. The adaptive clamping fixation of the end of the sample is realized through the driving motor and the pressing type steel pliers. Therefore, the bending testing machine provided by the present application can perform adaptive fixation on samples of various specifications and has strong adaptability. When installing the sample, the adjusting nut can be appropriately loosened to move the abutting plate upward, one end of the sample is placed in the first fixed adjustment component, then the other end of the sample is placed in the pressing type steel pliers, and the middle part of the sample is placed in the tightening type steel pliers. Then, the adjusting bolt is tightened and the tightening motor and the driving motor are started to fix the sample. After the fixation is completed, the bending test is started. It can be seen that there is no need to reserve too much installation space on both sides of the bending testing machine provided by the present application, and the bending testing machine has strong adaptability to space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. It should be understood that the specific shapes and structures shown in the drawings generally should not be regarded as limiting conditions when implementing the present application. For example, those skilled in the art are capable of making routine adjustments or further optimizations to the addition / deletion / attribution division, specific shape, positional relationship, connection method, dimensional ratio relationship, etc. of some units (components) based on the technical concept disclosed in the present application and the exemplary drawings.

[0017] Figure 1 It is a schematic diagram of the main structure of the bending testing machine provided by the present application in an embodiment;

[0018] Figure 2It is a top - view structural schematic diagram of the main structure of the bending test machine provided in this application in an embodiment, mainly showing the layout positions of three fixed - adjustment components;

[0019] Figure 3 It is a structural schematic diagram of the first fixed - adjustment component provided in this application in an embodiment under the state of sample installation;

[0020] Figure 4 It is a structural state schematic diagram of the first fixed - adjustment component provided in this application before installing the sample;

[0021] Figure 5 It is a structural schematic diagram of the second fixed - adjustment component provided in this application in an embodiment;

[0022] Figure 6 It is a structural schematic diagram of the third fixed - adjustment component provided in this application in an embodiment.

[0023] Explanation of reference numerals:

[0024] 1, working platform;

[0025] 2, the first fixed - adjustment component; 21, abutting plate; 211, the first arc - shaped groove; 22, mounting block; 221, the second arc - shaped groove; 23, vertical screw; 24, adjusting nut;

[0026] 3, the second fixed - adjustment component; 31, tightening motor; 32, central tightening screw; 33, limiting ring; 34, tightening - type steel pliers; 35, movable plate; 36, fixed plate;

[0027] 4, the third fixed - adjustment component; 41, driving motor; 42, downward - pressing screw; 43, fixed movable block; 44, downward - pressing type steel pliers;

[0028] 5, bending disc; 51, bending motor;

[0029] 6, rod - shaped sample. Detailed implementation manners

[0030] The following further details this application through specific embodiments in conjunction with the attached drawings.

[0031] In the description of this application: Unless otherwise specified, "a plurality of" means two or more. The terms "first", "second", "third", etc. in this application are intended to distinguish the objects being referred to, and do not have special significance in terms of technical connotation (for example, it should not be understood as emphasizing the importance level or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

[0032] Terms such as "upper", "lower", "left", "right", "middle", etc. cited in this application are usually for the convenience of intuitive understanding with reference to the accompanying drawings, rather than an absolute limitation on the positional relationship in the actual product. Without departing from the technical concept disclosed in this application, changes in these relative positional relationships should also be regarded as falling within the scope of the expression of this application.

[0033] See Figure 1 , a high-efficiency bending testing machine for metal materials provided by this application mainly includes a working platform 1 and three fixed adjustment components arranged thereon. The three fixed adjustment components are located on a straight line to adapt to the shape of the rod-shaped sample 6, such as Figure 2 . Specifically, a first fixed adjustment component 2 and a bending disc 5 are relatively spaced on the upper surface of the working platform 1. The bending disc 5 is connected to a bending motor 51 below the working platform 1. A second fixed adjustment component 3 is arranged at the center of the bending disc 5, and a third fixed adjustment component 4 is arranged at the edge of the bending disc 5. Among them: The first fixed adjustment component 2 includes a mounting block 22 arranged on the working platform 1 and a butting plate 21 arranged above the mounting block 22. Vertical screws 23 are arranged around the mounting block 22. Mounting holes adapted to the vertical screws 23 are arranged at the four corners of the butting plate 21. An adjusting nut 24 is configured on each vertical screw 23. An installation channel for installing the rod-shaped sample 6 is formed between the butting plate 21 and the mounting block 22; The second fixed adjustment component 3 includes a tightening motor 31 and a tightening type steel clamp 34 installed at the output end of the tightening motor 31; The third fixed adjustment component 4 includes a driving motor 41 and a pressing type steel clamp 44 installed at the output end of the driving motor 41. The mounting block 22, the tightening type steel clamp 34 and the pressing type steel clamp 44 cooperate to realize the installation and fixation of the rod-shaped sample 6. The three fixed adjustment components can all realize the fixation and adjustment of the rod-shaped sample 6, and can realize various specifications of samples. At the same time, during the bending test, when the rod-shaped sample 6 (such as a steel bar) breaks, the broken steel bar can be firmly clamped by the tightening type steel clamp 34 and the pressing type steel clamp 44, reducing the operation safety hazard.

[0034] In one embodiment, a control console is arranged at the top of the working platform 1. Start-stop control buttons for controlling the tightening motor 31, the bending motor 51, and the driving motor 41 can be arranged on the control console. A protective cover can also be arranged on the working platform 1 to ensure that the surrounding test observers will not be affected by the fragments cracked during the test. One side of the protective cover is hinged to the edge of the working platform 1 through structures such as a rotating shaft, and a buckle can be arranged on the other side, and a convex is arranged on the edge of the working platform 1. During use, manually buckle the buckle of the protective cover on the convex to form a buckle structure to realize the manual opening and closing of the protective cover. When the protective cover is closed, the above three fixed adjustment components are all arranged in the protective cover.

[0035] In one embodiment, see Figure 3 ,4 , on the surface of the abutting plate 21 of the first fixed adjustment component 2 in the present application facing the mounting block 22, a first arc-shaped groove 211 is provided, and on the surface of the mounting block 22 facing the abutting plate 21, a second arc-shaped groove 221 is provided. The first arc-shaped groove 211 and the second arc-shaped groove 221 are arranged oppositely to form a mounting channel with a fusiform cross-section, and anti-slip pads are provided on the groove walls of the first arc-shaped groove 211 and the second arc-shaped groove 221. The fusiform mounting channel adapts to the outer arc surfaces of steel bars of various specifications through the arc surfaces, and the steel bars are prevented from slipping through the anti-slip pads, ensuring the stable and reliable fixation of the steel bars.

[0036] In an embodiment, the bending disc 5 is rotatably connected to the working platform 1, the tightening motor 31 is installed at the center of the bending disc 5, the output end of the tightening motor 31 is connected with a central tightening screw 32, the central tightening screw 32 passes through the bottom of the tightening type steel clamp 34, and a limiting ring 33 is provided at the end of the central tightening screw 32 penetrating through the tightening type steel clamp 34; the tightening type steel clamp 34 includes a first clamp jaw and a second clamp jaw arranged oppositely, the first clamp jaw and the second clamp jaw cooperate to complete the clamping of the rod-shaped sample 6, the bottom of the first clamp jaw is fixed on the bending disc 5, the bottom of the second clamp jaw is fixed on the sliding plate, and a sliding groove adapted to the sliding connection of the sliding plate is provided on the bending disc 5. When in use, move the second clamp jaw to adjust the distance between the first clamp jaw and the second clamp jaw to adapt to samples of different specifications. After placing the sample, move the second clamp jaw so that the second clamp jaw abuts against the sample, and then drive the central tightening screw 32 to rotate through the tightening motor 31 to tighten the second clamp jaw and the first clamp jaw, completing the fixation of the sample.

[0037] In another embodiment, refer to Figure 2 , 5 , a fixing plate 36 is provided at the top of the bending disc 5, the fixing plate 36 is fixedly connected with the bending disc 5, a movable plate 35 is provided on one side of the fixing plate 36, the movable plate 35 is slidably connected to the fixing plate 36 in a pull-out manner, the fixing plate 36 is arranged at the bottom of the first clamp jaw, the movable plate 35 is arranged at the bottom of the second clamp jaw, and the distance between the first clamp jaw and the second clamp jaw can be adjusted by pulling the movable plate 35 in a sliding manner to adapt to the installation of steel bars of different specifications.

[0038] In one embodiment, a fixed movable block 43 is provided at the bottom end of the driving motor 41 of the third fixed adjustment assembly 4. The fixed movable block 43 is fixedly connected to the driving motor 41. A downward pressing screw rod 42 is provided at the output end of the driving motor 41. Legs or a motor cabinet are provided at the bottom end of the working platform 1. An opening and closing door is provided on one side of the motor cabinet. A bending motor 51 is provided inside the motor cabinet. The bending motor 51 is fixedly connected to the motor cabinet. A bending disc 5 is provided at the output end of the bending motor 51. The bending disc 5 is provided at the top end of the working platform 1. The bending disc 5 is rotatably connected to the working platform 1. The bending disc 5 is provided at the bottom end of the fixed movable block 43. A downward pressing steel clamp 44 is provided outside the downward pressing screw rod 42. The downward pressing steel clamp 44 is threadedly connected to the downward pressing screw rod 42. The downward pressing steel clamp 44 is provided inside the fixed movable block 43. The downward pressing steel clamp 44 is slidably connected to the fixed movable block 43. The downward pressing steel clamp 44 includes an upper clamping jaw and a lower clamping jaw provided on the downward pressing screw rod 42. As Figure 2 , 6 . When in use, the upper clamping jaw moves up and down along the fixed movable block 43 under the drive of the driving motor 41 and cooperates with the lower clamping jaw to clamp and fix the sample. During a general bending test, the fracture point of the steel bar is generally between the second fixed adjustment assembly 3 and the third fixed adjustment assembly 4. In this application, the steel bar is clamped by the second fixed adjustment assembly 3 and the third fixed adjustment assembly 4, which can prevent the steel bar from popping out when it breaks.

[0039] When installing the sample, the adjusting nut 24 can be appropriately loosened to move the abutting plate 21 upward. One end of the sample is placed into the first fixed adjustment assembly 2, and then the other end of the sample is placed in the downward pressing steel clamp 44. Then the middle part of the sample is placed in the tightening steel clamp 34. After that, the adjusting bolt is tightened and the tightening motor 31 and the driving motor 41 are started to fix the sample. After the fixing is completed, the bending test is started.

[0040] In summary, by setting three fixed adjustment assemblies in this application, the bending testing machine can adapt to samples of various specifications, is also convenient for installation, reduces the space requirements of the bending testing machine, and improves the adaptability of the device.

[0041] The technical features of the above embodiments can be combined arbitrarily (as long as there is no contradiction in the combination of these technical features). For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written out should also be considered to be within the scope described in this specification.

[0042] In the foregoing, the present application has been described in a relatively specific and detailed manner through general descriptions and specific embodiments. It should be understood that based on the technical concept of the present application, several conventional adjustments or further innovations can also be made to these specific embodiments; however, as long as they do not depart from the technical concept of the present application, the technical solutions obtained through these conventional adjustments or further innovations also fall within the scope of protection of the claims of the present application.

Claims

1. An efficient bending testing machine for metal materials, characterized in that, It includes a working platform, on the upper surface of which a first fixing and adjusting component and a bending disc are relatively and spacedly arranged. The bending disc is connected to a bending motor below the working platform. A second fixing and adjusting component is arranged at the center of the bending disc, and a third fixing and adjusting component is arranged at the edge of the bending disc; The first fixing and adjusting component includes a mounting block arranged on the working platform and an abutting plate arranged above the mounting block. Vertical screws are arranged around the mounting block, and mounting holes adapted to the vertical screws are arranged at the four corners of the abutting plate. An adjusting nut is configured on each vertical screw. An installation channel for installing a rod-shaped sample is formed between the abutting plate and the mounting block; The second fixing and adjusting component includes a tightening motor and a tightening type steel clamp installed at the output end of the tightening motor; the third fixing and adjusting component includes a driving motor and a pressing type steel clamp installed at the output end of the driving motor. The mounting block, the tightening type steel clamp and the pressing type steel clamp cooperate to realize the installation and fixation of the rod-shaped sample.

2. The high-efficiency bending testing machine for metal materials according to claim 1, wherein The bending disc is rotatably connected to the working platform. The tightening motor is installed at the center of the bending disc. The output end of the tightening motor is connected with a central tightening screw. The central tightening screw passes through the bottom of the tightening type steel clamp, and a limiting ring is arranged at the end of the central tightening screw passing through the tightening type steel clamp.

3. The high-efficiency bending testing machine for metal materials according to claim 2, characterized in that, The tightening type steel clamp includes a first clamp jaw and a second clamp jaw arranged oppositely. The first clamp jaw and the second clamp jaw cooperate to complete the clamping of the rod-shaped sample. The bottom of the first clamp jaw is fixed on the bending disc, and the bottom of the second clamp jaw is fixed on a slide plate. A chute adapted to the slide plate is arranged on the bending disc for sliding connection.

4. The high-efficiency bending testing machine for metal materials according to claim 1, characterized in that, A fixed movable block is arranged at the bottom of the driving motor. The fixed movable block is arranged on the bending disc. The output end of the driving motor passes through the fixed movable block and is connected to one end of a vertically arranged pressing screw. The pressing type steel clamp is threadedly and adaptively installed on the pressing screw. The pressing type steel clamp is arranged inside the fixed movable block and is slidably connected to the inner wall of the fixed movable block; the pressing type steel clamp includes an upper clamp jaw and a lower clamp jaw arranged on the pressing screw.

5. The high-efficiency bending testing machine for metallic materials according to claim 1, characterized in that, A first arc-shaped groove is arranged on the plate surface of the abutting plate facing the mounting block, and a second arc-shaped groove is arranged on the surface of the mounting block facing the abutting plate. The first arc-shaped groove and the second arc-shaped groove are arranged oppositely to form an installation channel with a fusiform cross-section; Anti-slip pads are arranged on the groove walls of the first arc-shaped groove and the second arc-shaped groove.

6. The high-efficiency bending testing machine for metal materials according to claim 1, wherein A protective cover is configured on the working platform. One side of the protective cover is rotatably connected to the working platform, and the other side is snap-connected to the working platform; The first fixing and adjusting component, the second fixing and adjusting component and the third fixing and adjusting component are arranged in the protective cover.

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