Bending test device for hot-rolled ribbed steel bar

Abstract

The utility model provides a hot-binding ribbed steel bar bending test device which comprises a base, a steel bar clamping mechanism, a clamping driving mechanism, a steel bar bending mechanism and a bending driving mechanism, a first through hole is formed in the base, the steel bar clamping mechanism comprises two clamping assemblies, one ends of the two clamping assemblies are located on the two sides of the first through hole, and the other ends of the two clamping assemblies are located on the other sides of the first through hole. One end of the steel bar bending mechanism is provided with a second penetrating hole, the second penetrating hole is located over the first penetrating hole, and the other end of the steel bar bending mechanism is connected with the bending driving mechanism. The clamping driving mechanism drives the two clamping assemblies to get close to each other so as to rapidly clamp the reinforcing steel bar; meanwhile, the bending driving mechanism drives the reinforcing steel bar bending mechanism to rotate forwards or reversely, so that the reinforcing steel bar penetrating through the second through hole can be bent forwards or reversely rapidly, multiple bending tests can be continuously carried out, the reinforcing steel bar does not need to be disassembled, reinstalled and clamped, and convenience and rapidness are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of steel bar bending test, specifically relates to a hot-rolled ribbed steel bar bending test device. BACKGROUND

[0002] Steel bar is widely used in concrete building structure, plays a vital role on the strength and stability of concrete building structure, therefore, needs to carry out the test of the mechanical characteristic of the material when the production steel bar bears the bending load. Steel bar bending testing machine is a special equipment for detecting steel bar quality, can carry out cold bending test and plane reverse bending test to steel bar.

[0003] The existing hot-rolled ribbed steel bar bending test device is relatively troublesome when steel bar is placed on the table surface of the bending test device for clamping, and it is necessary to reassemble and fix the steel bar when carrying out forward and reverse bending, so the efficiency is low and it is inconvenient to carry out forward and reverse bending test on the steel bar quickly. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a hot-rolled ribbed steel bar bending test device, which can at least solve some defects in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A hot-rolled ribbed steel bar bending test device, comprising a base and a steel bar clamping mechanism, a clamping driving mechanism, a steel bar bending mechanism and a bending driving mechanism arranged on the base, wherein the base is provided with a first through hole for the vertical passage of a steel bar, the steel bar clamping mechanism comprises two clamping assemblies, one end of each clamping assembly is located on the two sides of the first through hole, and the other end is connected with the clamping driving mechanism, the clamping driving mechanism drives the two clamping assemblies to approach each other or move away from each other to clamp or release the steel bar, one end of the steel bar bending mechanism is provided with a second through hole for the vertical passage of a steel bar, and the second through hole is located directly above the first through hole, the other end of the steel bar bending mechanism is connected with the bending driving mechanism, and the bending driving mechanism drives the steel bar bending mechanism to rotate forward or reversely in a plane perpendicular to the base.

[0007] Further, the clamping assembly comprises a clamping frame and a clamping block, one end of the clamping frame is connected with the movable end of the clamping driving mechanism, the clamping block is arranged on the other end of the clamping frame, and the clamping blocks of the two clamping assemblies are arranged oppositely.

[0008] Further, the reinforcing steel bar clamping mechanism further comprises a mounting seat for limiting and guiding the clamping assembly, a first sliding groove and a second sliding groove are arranged on the upper surface of the mounting seat, two clamping frames are arranged in the first sliding groove in a sliding manner, and the two clamping frames are connected with the clamping driving mechanism through a push-pull frame.

[0009] Further, the mounting seat is a rectangular block, and the first sliding groove and the second sliding groove are arranged in a cross shape.

[0010] Further, the clamping frame is an L-shaped structure, the horizontal sections of the two clamping frames are arranged in a sliding stack in an up-down manner in the first sliding groove, the horizontal section of the clamping frame is provided with a limiting groove, the limiting groove is arranged in an inclined manner, the push-pull frame is provided with a blocking rod, and the blocking rod is slidingly inserted into the limiting groove.

[0011] Further, recesses are arranged on the opposite sides of the two clamping blocks, rotating blocks are rotatably arranged in the recesses, and clamping blocks for clamping the reinforcing steel bars are arranged on the rotating blocks.

[0012] Further, the reinforcing steel bar bending mechanism comprises a rotating plate and a supporting plate, the rotating plate is arranged vertically, the bottom end of the rotating plate is connected with the bending driving mechanism, the supporting plate is arranged horizontally, one end of the supporting plate is connected with the top end of the rotating plate, the second through hole is arranged at one end of the supporting plate away from the rotating plate, and a clamping assembly for clamping the reinforcing steel bars passing through the second through hole is connected to the supporting plate.

[0013] Further, the reinforcing steel bar bending mechanism further comprises a mounting plate and a limiting frame, the mounting plate is arranged vertically on the side of the rotating plate away from the supporting plate, and the limiting frame is arranged at the upper end of the mounting plate; the limiting frame is a semicircular sliding groove structure, and the upper end of the rotating plate is slidingly connected to the limiting frame through a limiting column.

[0014] Further, the clamping assembly comprises two first connecting plates arranged on the two sides of the supporting plate in a relative manner, and a torsion rod connected with the two first connecting plates; one end of the first connecting plate is connected with a tightening column, the other end of the first connecting plate is provided with a first connecting hole, the two sides of the supporting plate are provided with guide holes corresponding to the second through hole, the tightening column is slidingly inserted into the guide hole, and the torsion rod penetrates through the first connecting holes of the two first connecting plates and is threadedly connected with the first connecting holes.

[0015] Further, the end of the supporting plate is provided with a second connecting plate, the second connecting plate is provided with a second connecting hole, and the torsion rod penetrates through the second connecting hole.

[0016] Compared with the prior art, the reinforcing steel bar clamping mechanism has the following advantages:

[0017] The hot-rolled ribbed steel bar bending test device provided by the utility model can quickly clamp the steel bar by driving the two clamping assemblies to approach through the clamping driving mechanism, keep the clamping force on both sides of the steel bar the same, and keep the steel bar vertical; meanwhile, the steel bar bending mechanism is driven to rotate forward or reversely through the bending driving mechanism, so that the steel bar passing through the second perforation is bent forward or reversely, and the forward and reverse bending test of the steel bar can be quickly performed, and the bending test can be continuously performed for multiple times without disassembling and reassembling the clamping steel bar, which is convenient and fast.

[0018] The utility model will be further explained in detail in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is structure schematic diagram of hot-rolled ribbed steel bar bending test device of the utility model;

[0020] Figure 2 It is structure schematic diagram of steel bar clamping mechanism in the embodiment of the utility model;

[0021] Figure 3 It is installation schematic drawing of push-pull frame and mounting seat in the embodiment of the utility model;

[0022] Figure 4 It is structure schematic diagram of clamping assembly in the embodiment of the utility model;

[0023] Figure 5 It is structure schematic diagram of steel bar bending mechanism in the embodiment of the utility model;

[0024] Figure 6 It is structure schematic diagram of first connecting plate in the embodiment of the utility model.

[0025] The figure mark explanation: 1, base; 2, air cylinder; 3, push-pull frame; 4, clamping frame; 5, mounting seat; 6, first perforation; 7, clamping block; 8, rotating block; 9, twist rod; 10, second connecting plate; 11, first connecting plate; 12, jacking column; 13, second perforation; 14, support plate; 15, limiting frame; 16, mounting plate; 17, rotating plate; 18, rotating motor; 19, recess; 20, clamping block; 21, stop lever; 22, first sliding slot; 23, second sliding slot; 24, first connecting hole; 25, guide hole; 26, second connecting hole; 27, limiting slot; 28, limiting column. DETAILED DESCRIPTION

[0026] Clearly and completely describe the technical scheme in the embodiments of the utility model in combination with the drawings in the embodiments of the utility model, apparently, the described embodiments are only a part of the embodiments of the utility model, and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0027] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0028] In the description of the utility model, it is understood that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixedly connected, can also be detachably connected, can also be in contact with the connection or integrally connected, and the person skilled in the art can understand the specific meaning of the above terms in the utility model according to the specific circumstances.

[0029] The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features; in the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0030] As Figure 1As shown in the embodiment, the hot-rolled ribbed steel bar bending test device comprises a base 1 and a steel bar clamping mechanism, a clamping driving mechanism, a steel bar bending mechanism and a bending driving mechanism arranged on the base 1. The base 1 is provided with a first through hole 6 for the steel bar to vertically pass through, and the first through hole 6 penetrates through the upper and lower surfaces of the base 1 to limit the steel bar. The steel bar clamping mechanism comprises two clamping assemblies, one end of each clamping assembly is located on the side of the first through hole 6, and the other end is connected with the clamping driving mechanism. The clamping driving mechanism drives the two clamping assemblies to move towards or away from each other to clamp or release the steel bar. One end of the steel bar bending mechanism is provided with a second through hole 13 for the steel bar to vertically pass through, and the second through hole 13 is located directly above the first through hole 6. The other end of the steel bar bending mechanism is connected with the bending driving mechanism, and the bending driving mechanism drives the steel bar bending mechanism to rotate forward or reversely in a plane perpendicular to the base 1. When the steel bar is subjected to the bending test, the bottom end of the steel bar is inserted into the first through hole 6, the upper end of the steel bar passes through the second through hole 13 and is fixed, and the clamping driving mechanism drives the two clamping assemblies to move towards each other to quickly clamp the steel bar. Since the two clamping assemblies move synchronously, the clamping force on both sides of the steel bar is the same, and the steel bar can be kept vertical. When the steel bar is bent, the bending driving mechanism drives the steel bar bending mechanism to rotate forward or reversely, thereby generating a force on the steel bar to bend the steel bar forward or reversely. Thus, the steel bar can be quickly subjected to forward and reverse bending test, and the bending test can be continuously performed for multiple times without disassembling and reassembling the clamping steel bar.

[0031] As a specific embodiment, as shown in Figure 2 , Figure 3 and Figure 4 , the clamping assembly comprises a clamping frame 4 and a clamping block 7. One end of the clamping frame 4 is connected with the movable end of the clamping driving mechanism, and the clamping block 7 is arranged on the inner side of the other end of the clamping frame 4. The clamping blocks 7 of the two clamping assemblies are oppositely arranged. The clamping driving mechanism drives the two clamping frames 4 to move towards each other, so that the two clamping blocks 7 clamp the steel bar.

[0032] Preferably, the reinforcing steel bar clamping mechanism further comprises a mounting base 5 for limiting and guiding the clamping assembly, the upper surface of the mounting base 5 is provided with a first sliding groove 22 and a second sliding groove 23, two clamping frames 4 are arranged in the first sliding groove 22 in a sliding manner away from one end of the clamping block 7, and are connected with the clamping driving mechanism through a push-pull frame 3, and the push-pull frame 3 is slidingly installed in the second sliding groove 23. The first sliding groove 22 guides and limits the mutual approaching movement of the two clamping frames 4, so that the two clamping blocks 7 can quickly and stably clamp the reinforcing steel bar; at the same time, the push-pull frame 3 moves in and out of the second sliding groove 23, and the second sliding groove 23 guides and limits the movement of the clamping driving mechanism driving the push-pull frame 3, so as to ensure the stability and symmetry of the driving force of the clamping driving mechanism on the two clamping frames 4, and then ensure that the clamping forces on both sides of the reinforcing steel bar are the same. In some embodiments, the mounting base 5 is designed as a rectangular block structure and is arranged horizontally, and the first sliding groove 22 and the second sliding groove 23 are arranged in a cross shape.

[0033] Specifically, the clamping frame 4 is of an L-shaped structure, the horizontal sections of the two clamping frames 4 are arranged in a sliding stack in the first sliding groove 22 in an up-down manner, the horizontal section of the clamping frame 4 is provided with a limiting groove 27, and the limiting groove 27 is arranged in an inclined manner, wherein the limiting groove 27 on the upper clamping frame 4 is arranged on the upper surface of the clamping frame 4, the limiting groove 27 on the lower clamping frame 4 is arranged on the lower surface of the clamping frame 4, and the limiting grooves 27 of the two clamping frames 4 are arranged in a cross manner; the push-pull frame 3 is of a U-shaped structure, the U-shaped bottom of the push-pull frame 3 is fixedly connected with the clamping driving mechanism, the two side walls of the U-shaped structure are arranged in the second sliding groove 23 in an up-down manner, a stop rod 21 is arranged in the push-pull frame 3, the stop rod 21 slidingly passes through the limiting groove 27, and specifically, one stop rod 21 is arranged on each of the two side walls of the push-pull frame 3 in a corresponding manner, the upper stop rod 21 is slidingly arranged in the limiting groove 27 of the upper clamping frame 4, and the lower stop rod 21 is slidingly arranged in the limiting groove 27 of the lower clamping frame 4. The clamping driving mechanism drives the push-pull frame 2 to move in the second sliding groove 23, in this process, the stop rod 21 moves in the limiting groove 27 of the clamping frame 4 and pushes the two clamping frames 4 to move away from / each other in the first sliding groove 22.

[0034] For the clamping mode of the two clamping blocks 7 on the reinforcing steel bar, in some embodiments, a groove 19 can be arranged on the opposite side surfaces of the two clamping blocks 7, a rotating block 8 is rotatably installed in the groove 19, and a clamping block 20 for clamping the reinforcing steel bar is arranged on the rotating block 8, wherein the rotating block 8 is designed to enable the clamping block 20 to better fit the reinforcing steel bar, thereby stably clamping the reinforcing steel bar. Preferably, the surface of the clamping block 20 for clamping the reinforcing steel bar is of a V-shaped structure, which is conducive to better clamping the reinforcing steel bar.

[0035] In the embodiment, the clamping driving mechanism can adopt, but is not limited to, a pneumatic cylinder 2.

[0036] As a specific embodiment, as shown in Figure 5 The steel bar bending mechanism comprises a rotating plate 17 and a support plate 14. The rotating plate 17 is vertically arranged, and the bottom end of the rotating plate 17 is connected with the bending driving mechanism. The support plate 14 is horizontally arranged, and one end of the support plate 14 is connected with the top end of the rotating plate 17. The second through hole 13 is arranged on the support plate 14 away from the rotating plate 17, and a clamping assembly for clamping the steel bar passing through the second through hole 13 is connected on the support plate 14. After the steel bar is clamped vertically by the steel bar clamping mechanism, the top end of the steel bar passes through the second through hole 13 of the support plate 14. During the bending test, the clamping assembly clamps the upper end of the steel bar, and then the rotating plate 17 is driven by the bending driving mechanism to rotate forward or reversely, so as to drive the support plate 14 and the steel bar fixed at one end of the support plate 14 to bend forward or reversely, thereby the steel bar can be quickly bent forward or reversely, and the bending test can be continuously carried out for multiple times without disassembling and reassembling the steel bar clamping mechanism.

[0037] Preferably, the steel bar bending mechanism further comprises a mounting plate 16 and a limiting frame 15. The mounting plate 16 is vertically arranged on the side of the rotating plate 17 away from the support plate 14. The limiting frame 15 is arranged on the upper end of the mounting plate 16. The limiting frame 15 is a semicircular sliding groove structure. The upper end of the rotating plate 17 is slidingly connected in the limiting frame 15 through a limiting column 28. The limiting frame 15 plays a guiding and limiting role for the forward / reverse rotation of the rotating plate 17, and also supports the rotating plate 17 to ensure the stability of the movement of the rotating plate 17.

[0038] Further, as shown in Figure 1 The clamping assembly comprises two first connecting plates 11 arranged on the two sides of the support plate 14, and a torsion rod 9 connecting the two first connecting plates 11. One end of the first connecting plate 11 is connected with a tightening column 12, and the other end of the first connecting plate 11 is provided with a first connecting hole 24. The support plate 14 is provided with a guide hole 25 corresponding to the second through hole 13 on the two sides. The tightening column 12 is slidingly inserted into the guide hole 25. The torsion rod 9 penetrates through the first connecting holes 24 of the two first connecting plates 11 and is threadedly connected with the first connecting holes 24. Specifically, the guide hole 25 is horizontally arranged, the tightening column 12 is horizontally arranged, the first connecting hole 24 is a threaded hole structure, and the torsion rod 9 is a threaded rod structure and is horizontally arranged and threadedly connected with the first connecting hole 24. During the bending test, the torsion rod 9 is rotated to drive the two first connecting plates 11 and the tightening columns 12 to move towards the inside of the second through hole 13 of the support plate 14, so that the two tightening columns 12 clamp the two sides of the top end of the steel bar at the same time.

[0039] Further, the end of the support plate 14 is provided with a second connecting plate 10, the second connecting plate 10 is provided with a second connecting hole 26, the torsion bar 9 penetrates through the second connecting hole 26, and the second connecting plate 10 plays a stable supporting role on the rotation of the torsion bar 9.

[0040] In the embodiment, the bending driving mechanism can adopt, but is not limited to, a rotary motor 18.

[0041] The above examples are only illustrative of the present application, and do not constitute a limitation on the protection scope of the present application, and any design identical or similar to the present application belongs to the protection scope of the present application.

Claims

1. A device for testing the bending of hot rolled deformed steel bars, characterized in that: The utility model provides a steel bar bending device, including base and set up on the steel bar clamping mechanism, clamping drive mechanism, steel bar bending mechanism and bending drive mechanism, be equipped with first perforation for the steel bar vertical through on the base, the steel bar clamping mechanism includes two clamping components, two the clamping component one end is located first perforation both sides, the other end is connected with clamping drive mechanism, through clamping drive mechanism drives two clamping components to be close to each other / away from each other to clamp / loosen the steel bar, steel bar bending mechanism one end is equipped with second perforation for the steel bar vertical through, and second perforation is located first perforation's directly above, and the other end of steel bar bending mechanism is connected with bending drive mechanism, through bending drive mechanism drives steel bar bending mechanism in the plane perpendicular to base direct / reverse rotation.

2. The device of claim 1, wherein: The clamping component includes a clamping frame and a clamping block, one end of the clamping frame is connected with a movable end of the clamping drive mechanism, and the clamping block is arranged on the other end of the clamping frame, and the clamping blocks of the two clamping components are oppositely arranged.

3. The device of claim 2, wherein: The steel bar clamping mechanism further includes a mounting seat for limiting and guiding the clamping components, a first sliding groove and a second sliding groove are arranged on the upper surface of the mounting seat, the ends of the two clamping frames away from the clamping blocks are oppositely arranged in the first sliding groove, and the push-pull frame is connected with the clamping drive mechanism, and the push-pull frame is slidingly installed in the second sliding groove.

4. The device of claim 3, wherein: The mounting seat is a rectangular block, and the first sliding groove and the second sliding groove are cross-shaped.

5. The device of claim 3, wherein: The clamping frame is in an L-shaped structure, and the horizontal segments of the two clamping frames are slidingly stacked in the first sliding groove in an up-down manner, the horizontal segment of the clamping frame is provided with a limiting groove, the limiting groove is arranged in an inclined manner, the push-pull frame is internally provided with a stop rod, and the stop rod is slidingly inserted into the limiting groove.

6. The device of claim 2, wherein: Recesses are arranged on the opposite sides of the two clamping blocks, rotating blocks are rotatably installed in the recesses, and clamping blocks for clamping the steel bars are arranged on the rotating blocks.

7. The device of claim 1, wherein: The steel bar bending mechanism includes a rotating plate and a supporting plate, the rotating plate is vertically arranged, the bottom end of the rotating plate is connected with the bending drive mechanism, the supporting plate is horizontally arranged, one end of the supporting plate is connected with the top end of the rotating plate, the second perforation is arranged on one end of the supporting plate away from the rotating plate, and a clamping component for clamping the steel bar passing through the second perforation is connected to the supporting plate.

8. The device of claim 7, wherein: The steel bar bending mechanism further includes a mounting plate and a limiting frame, the mounting plate is vertically arranged on the side of the rotating plate away from the supporting plate, and the limiting frame is arranged on the upper end of the mounting plate, the limiting frame is in a semicircular sliding groove structure, and the upper end of the rotating plate is slidingly connected to the limiting frame through a limiting column.

9. The device of claim 7, wherein: The clamping assembly comprises two first connecting plates oppositely arranged on both sides of the support plate and a torsion bar connecting the two first connecting plates; one end of the first connecting plate is connected with a tightening column, the other end of the first connecting plate is provided with a first connecting hole, both sides of the support plate are provided with guide holes corresponding to the second through holes, the tightening column is slidingly inserted into the guide holes, and the torsion bar penetrates through the first connecting holes of the two first connecting plates and is in threaded connection with the first connecting holes.

10. The device of claim 9, wherein: The end of the support plate is provided with a second connecting plate, the second connecting plate is provided with a second connecting hole, and the torsion bar penetrates through the second connecting hole.

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