Steel bar bending tester
By adopting the structure of positioning blocks and dual drive mechanisms in the reinforcement bending test machine, the problems of inaccurate pressure control and the impact of rebar elasticity in the prior art are solved, and the precise control of rebar bending angle and the improvement of test accuracy are achieved.
Patent Information
- Application Number
- CN202420631644.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-03-28
AI Technical Summary
The existing reinforcement bending test methods cannot accurately control the applied pressure, and the elasticity of the reinforcement will affect the forming quality, resulting in inaccurate bending angle.
A steel bar bending test machine is designed, adopting a structure of a positioning block and a dual drive mechanism. Through the linear movement of the first driving source and the second driving source, the bending process of the steel bar is accurately controlled, and the bending steel bar state is maintained through the fixed support of the second driving block.
Accurate control of the bending angle of the steel bar is achieved, the accuracy of the test is improved, and the bending steel bar remains stable, making it easier to obtain subsequent test parameters.
Smart Images
Figure CN222652749U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of building detection, in particular to a steel bar bending testing machine. Background Art
[0002] The steel bar bending test machine is used to bend steel bars. One of the test standards is to bend the steel bars into different angles through the equipment to observe whether cracks appear on the surface of the steel bars and judge the performance of the steel bars.
[0003] The existing methods of bending steel bars include fixing them with supporting rods and then forming the bending effect by upper stamping. There are also methods of placing the steel bars on a turntable and rotating the cams or bumps on the turntable to drive the steel bars to rotate. The problems with the above two driving methods are that the applied pressure cannot be accurately controlled. Secondly, after the steel bars are bent, the elasticity of the steel bars themselves will affect the forming quality of the steel bars (they cannot be rotated to the corresponding bending angle), which will affect the parameters of subsequent tests. Utility Model Content
[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem of how to better perform a steel bar bending test. To this end, the present invention provides a steel bar bending test machine, which includes:
[0005] A working panel, wherein the working panel is provided with a positioning block, and a convex portion is provided on the front side of the positioning block;
[0006] A first driving mechanism, the first driving mechanism includes a first driving source and a first driving block, the first driving source drives the first driving block to move toward one side of the positioning block, the first driving block is provided with two driving parts, and the two driving parts are symmetrically arranged relative to an imaginary center line of the positioning block;
[0007] The second driving mechanism, there are two second driving mechanisms, which are symmetrically distributed on the working panel. The second driving mechanism includes a second driving source and a second driving block. The second driving source drives the second driving block to move toward the left and right sides of the positioning block.
[0008] In this structural setting, the raised part of the positioning block forms the central positioning point of the steel bar, and the two driving parts act on the steel bar at the same time to form a bending effect. When the steel bar is partially bent, the second driving mechanism is activated, so that the second driving block and the two ends of the steel bar are against each other, forming a further bending effect. Through the step-by-step operation setting, the operator can accurately program the first driving source and the second driving source. At the same time, the first driving source and the second driving source are both linear motions, which is convenient for calculating the corresponding parameters and improving the accuracy of the test; secondly, the setting of the second driving block also forms a fixed support effect, so that the steel bar remains bent after bending, destroying the elastic restoring force of the steel bar, so that the corresponding bending angle can be obtained.
[0009] The left and right sides of the positioning block are first planes, the second driving block is provided with a second plane, and the bent part of the steel bar is located between the first plane and the second plane.
[0010] The first plane and the second plane are mainly used for testing the steel bar bending to 180°, that is, the steel bar forms a U-shaped structure, and the two sides of the steel bar are arranged in parallel. The first plane and the second plane can better achieve the effect of fitting and fixing.
[0011] The driving part is slidably arranged relative to the first driving block.
[0012] The driving part adopts a sliding setting, and the operator can adjust the position of the driving part according to the different specifications of steel bars.
[0013] Wherein, the second driving mechanism is slidably arranged relative to the working panel.
[0014] The second driving mechanism is an integral sliding mechanism to meet the needs of steel bars of different specifications.
[0015] Wherein, the positioning block and the working panel are detachably connected.
[0016] The detachable connection between the positioning block and the working panel allows the operator to replace steel bars of different specifications.
[0017] The bolts pass through the bottom surface of the working panel and extend to be connected and fixed with the positioning block.
[0018] The bolts extend from the bottom surface to be connected and fixed with the positioning block, thereby achieving a hidden effect and improving the overall aesthetics.
[0019] Wherein, the working panel is provided with curved scale lines.
[0020] The setting of the bending scale line allows the operator to intuitively observe the bending angle, making operation easier.
[0021] Wherein, the working panel is provided with a center scale line.
[0022] The setting of the center scale line facilitates the positioning and fixation of the steel bars in the initial state.
[0023] Wherein, the working panel is provided with horizontal scale lines.
[0024] The setting of the horizontal scale lines allows the operator to directly observe the length of the steel bars without the need to measure again through external measuring tools, thus improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0026] Figure 1 A structural schematic diagram of a steel bar bending testing machine provided by the utility model;
[0027] Figure 2 This is a structural schematic diagram of the positioning block provided by the utility model. DETAILED DESCRIPTION
[0028] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0031] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. Example
[0032] This embodiment provides a steel bar bending test machine, as shown in the attached Figure 1-2As shown, including:
[0033] The working panel 11 is parallel to the horizontal ground. The working panel 11 can be supported and fixed by structures such as a support frame or a workbench. In simple terms, the working panel 11 can be considered as the desktop of a table, but an operating mechanism is also provided below the bottom surface of the working panel 11, that is, operation control is performed through a program, such as PLC control, etc. The working panel 11 is provided with a positioning block 12, and the positioning block 12 is located on the top surface of the working panel 11, forming an effect of protruding upward. A raised portion 121 is provided on the front side of the positioning block 12, and the front side here is specifically the side facing the first driving block. When the working panel 11 is a horizontal plane, the orientation of the positioning block 12 is the Y-axis orientation. The raised portion 121 forms a positioning effect for the steel bar. When a bending operation is required, the central area of the steel bar is against the raised portion 121.
[0034] The first driving mechanism 13, the first driving mechanism 13 slides relative to the working panel 11. The first driving mechanism 13 includes a first driving source 131 and a first driving block 132, specifically, the first driving block 132 slides on the top surface of the working panel 11. The first driving source 131 drives the first driving block 132 to move toward the side of the positioning block 12, and the movement direction of the first driving block 132 here is the Y-axis direction. It should also be noted that the movement trajectory of the first driving block 132 is a linear motion, that is, a motion parallel to the Y-axis is formed. The first driving block 132 is provided with two driving parts 133, and the two driving parts 133 are symmetrically arranged relative to the imaginary center line of the positioning block 12, that is, in the initial state, the imaginary centers of the two driving parts 133 are connected end to end with the imaginary center of the positioning block 12 to form an isosceles triangle. During the movement, the driving part 133 moves along the Y-axis direction to form the effect of driving the steel bar to bend.
[0035] The second driving mechanism 14, the number of the second driving mechanism 14 is two, and the two second driving mechanisms 14 are symmetrically distributed on the working panel 11, and the two second driving mechanisms 14 are distributed left and right, that is, one of the second driving mechanisms 14 is located in the left area of the working panel 11, and the other second driving mechanism 14 is located in the right area of the working panel 11. The second driving mechanism 14 is also linearly driven, and the driving direction of the second driving mechanism 14 is the X-axis direction. The second driving mechanism 14 includes a second driving source 141 and a second driving block 142, and the second driving source 141 drives the second driving block 142 to move toward the left and right sides of the positioning block 12, and one of the second driving blocks 142 slides horizontally from the left side to the right side, and the other second driving block 142 slides horizontally from the right side to the left side.
[0036] In addition, as attached Figure 1-2As shown, the first driving source 131 and the second driving source 141 in this embodiment can be a cylinder or an oil cylinder or a hydraulic drive, which are all controlled by the PLC program. In this structural setting, the raised portion 121 of the positioning block 12 forms the central positioning point of the steel bar, and the two driving parts 133 act on the steel bar at the same time to form a bending effect. When the steel bar is partially bent, the second driving mechanism 14 acts so that the second driving block 142 and the two ends of the steel bar are against each other to form a further bending effect. Through the step-by-step operation setting, the operator can accurately program the first driving source 131 and the second driving source 141. At the same time, the first driving source 131 and the second driving source 141 are both linear motions, which is convenient for calculating the corresponding parameters and improving the accuracy of the test; secondly, the setting of the second driving block 142 also forms the effect of fixed support, so that the steel bar after bending remains in a bent state, destroying the elastic restoring force of the steel bar, so that the corresponding bending angle can be obtained.
[0037] Specifically, as attached Figure 1-2 As shown, the left and right sides of the positioning block 12 are first planes 122, the second driving block 142 is provided with a second plane 1421, and the bent portion of the steel bar is located between the first plane 122 and the second plane 1421. The first plane 122 and the second plane 1421 are mainly used for testing the steel bar bending to 180°, that is, the steel bar forms a U-shaped structure, the two sides of the steel bar are arranged in parallel, and the first plane 122 and the second plane 1421 can better achieve the effect of fitting and fixing.
[0038] Specifically, as attached Figure 2 As shown, the raised portion 121 includes a curved surface 1211, a first inclined surface 1212 and a second inclined surface 1213, the two ends of the curved surface 1211 are connected to the first inclined surface 1212 and the second inclined surface 1213 respectively, the other end of the first inclined surface 1212 is connected to one of the first planes 122, and the other end of the second inclined surface 1213 is connected to another first plane 122. It should also be noted that when a 180° bend is performed, a gap is provided between the bent steel bar and the first inclined surface 1212 and the second inclined surface 1213, that is, the lower end of the U-shape is a curved surface 1211 as a whole, and the inclined surface and the curved surface 1211 do not completely overlap. Compared with the processing method of complete fitting, this structural setting forms the effect of margin control, improves the bending effect, and prevents the actual test effect from being affected by over-tight fitting during the bending process.
[0039] Specifically, as attached Figure 1As shown, the driving unit 133 is slidably arranged relative to the first driving block 132. The driving unit 133 can slide along the X-axis direction to adjust the spacing between the two driving units 133 to meet the test requirements under different conditions. The driving unit 133 is slidably arranged, and the operator can adjust the position of the driving unit 133 according to the steel bars of different specifications. The sliding arrangement here can be a combination of a slide rail and a slider, or a gear-type sliding. Those skilled in the art can adjust the spacing between the two driving units 133 according to actual needs. It should be noted that the two driving units 133 are still symmetrically arranged after adjustment.
[0040] Specifically, as attached Figure 1 As shown, the second drive mechanism 14 is slidably arranged relative to the working panel 11. The second drive mechanism 14 slides as a whole along the Y-axis direction. Specifically, the height difference between the second drive block 142 and the positioning block 12 in the Y-axis direction is adjusted to meet the test requirements under different conditions. The second drive mechanism 14 slides as a whole to meet the needs of steel bars of different specifications. The sliding setting here can be a combination of a slide rail and a slider, or a gear-type sliding. Those skilled in the art can adjust the height between the two second drive mechanisms 14 according to actual needs. It should be noted that the two second drive mechanisms 14 are still symmetrically arranged after adjustment.
[0041] Specifically, the second driving mechanism 14 only has an auxiliary effect, and its power may be smaller than that of the first driving mechanism 13 .
[0042] Specifically, the positioning block 12 is detachably connected to the working panel 11. The detachable connection between the positioning block 12 and the working panel 11 allows operators to replace steel bars of different specifications.
[0043] Specifically, the bolts extend through the bottom surface of the working panel 11 to be connected and fixed with the positioning block 12. The bolts extend from the bottom surface to be connected and fixed with the positioning block 12, which has a hidden effect and improves the overall aesthetics. The number of bolts fixed here can be adjusted according to actual needs, and can be one, two, or more.
[0044] Specifically, as attached Figure 1 As shown, the working panel 11 is provided with bending scale lines 15. The setting of the bending scale lines 15 allows the operator to intuitively observe the bending angle, which is convenient for operation. The bending scale lines 15 can be printed on the working panel 11 or engraved on the working panel 11.
[0045] Specifically, as attached Figure 1As shown, the working panel 11 is provided with a center scale line 16. The center scale line 16 is specifically in the Y-axis direction. The setting of the center scale line 16 facilitates the positioning and fixing of the steel bar in the initial state. The center scale line 16 can be printed on the working panel 11 or engraved on the working panel 11.
[0046] Specifically, as attached Figure 1 As shown, the working panel 11 is provided with transverse scale lines 17. The transverse scale lines 17 are in the X-axis direction. With the setting of the transverse scale lines 17, the operator can directly observe the length of the steel bar without having to measure it again through an external measuring tool, thereby improving work efficiency.
[0047] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.
Claims
1. A steel bar bending testing machine, characterized in that: include: A working panel, wherein the working panel is provided with a positioning block, and a convex portion is provided on the front side of the positioning block; A first driving mechanism, the first driving mechanism includes a first driving source and a first driving block, the first driving source drives the first driving block to move toward one side of the positioning block, the first driving block is provided with two driving parts, and the two driving parts are symmetrically arranged relative to an imaginary center line of the positioning block; The second driving mechanism, there are two second driving mechanisms, which are symmetrically distributed on the working panel. The second driving mechanism includes a second driving source and a second driving block. The second driving source drives the second driving block to move toward the left and right sides of the positioning block.
2. The steel bar bending testing machine according to claim 1, characterized in that: The left and right sides of the positioning block are first planes, the second driving block is provided with a second plane, and the bent portion of the steel bar is located between the first plane and the second plane.
3. The steel bar bending testing machine according to claim 1, characterized in that: The driving portion is slidably arranged relative to the first driving block.
4. The steel bar bending testing machine according to claim 1, characterized in that: The second driving mechanism is slidably arranged relative to the working panel.
5. The steel bar bending testing machine according to claim 1, characterized in that: The positioning block is detachably connected to the working panel.
6. The steel bar bending testing machine according to claim 4, characterized in that: The bolts extend through the bottom surface of the working panel and are connected and fixed with the positioning block.
7. The steel bar bending testing machine according to claim 1, characterized in that: The working panel is provided with curved scale lines.
8. The steel bar bending testing machine according to claim 1, characterized in that: The working panel is provided with a center scale line.
9. The steel bar bending testing machine according to claim 1, characterized in that: The working panel is provided with horizontal scale lines.