Steel bar bending test anti-skid positioning die structure

Abstract

The utility model relates to reinforcing bar detection technical field discloses reinforcing bar bending test antiskid positioning mould structure, including base, the top wall fixedly connected with workstation of base, the top wall rear side of workstation installs the mounting panel, the left side fixedly connected with fixed plate of mounting panel, the outer wall rear side fixedly connected with motor of mounting panel, the output of motor installs the belt, the other side of belt installs the carousel, the left end fixedly connected with the two -way screw rod of carousel. In the utility model, motor rotation transmission belt, belt drives carousel rotation, carousel bottom's two -way screw rod also rotates in step, the slider of two -way screw rod outer wall can slide left and right, the clamping plate on slider can move inwards and outwards simultaneously, can take the steel bar, fixes and locates to the steel bar, and rubber board can increase the friction between the steel bar, effectively prevent the sliding phenomenon of steel bar in the test process.

Description

Technical Field

[0001] This utility model relates to the field of rebar testing technology, and in particular to the anti-slip positioning mold structure for rebar bending tests. Background Technology

[0002] Reinforcing bars refer to steel used in reinforced concrete and prestressed reinforced concrete. Their cross-section is circular, and sometimes square with rounded corners. Reinforcing bar bending is an important step in reinforcing bar processing. By bending the reinforcing bars into specific shapes, they can be matched with the design shape of building components, allowing the reinforcing bars to be accurately placed inside the components, providing effective support and restraint for the concrete, thereby ensuring the mechanical properties and stability of the components.

[0003] The steel bar bending process uses a steel bar bending test anti-slip positioning mold structure. This device consists of a positioning seat fixed on the frame panel and a positioning panel that can move back and forth on the positioning seat. The contact surfaces of the positioning seat and the positioning panel are respectively provided with a threaded anti-slip structure and a toothed anti-slip structure that cooperate with each other. The front end of the positioning panel is provided with a rotatable guide pin.

[0004] Existing technologies require clearly defining the bending shape, dimensions, and angle requirements of reinforcing bars. Then, appropriate bending equipment and dies are selected based on the diameter and bending radius of the reinforcing bars. Simultaneously, the reinforcing bars are straightened and derusted to ensure a clean and straight surface, facilitating bending. The reinforcing bars are placed in the designated position on the bending equipment and bent according to pre-set parameters. During bending, it is crucial to control the bending speed to avoid uneven deformation and cracking caused by excessive speed. In reinforcing bar bending tests, there is significant friction and compressive force between the die and the reinforcing bar. Especially after bending high-strength reinforcing bars or conducting multiple tests, parts of the die that directly contact the reinforcing bar, such as the bending axis and anti-slip devices, are prone to wear. Hardening treatments, such as quenching, carburizing, and hard chrome plating, are used to improve the surface hardness and wear resistance of the die. However, during bending tests, even when subjected to significant bending forces, the reinforcing bars may still exhibit slight displacement. This displacement can lead to inaccuracies in the bending angle and radius, thus affecting the evaluation of the reinforcing bar's bending performance. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a non-slip positioning mold structure for steel bar bending tests. It aims to improve the problem in the prior art where, during bending tests, steel bars still exhibit slight displacement when subjected to large bending forces. This displacement may lead to inaccuracies in the bending angle and bending radius, thereby affecting the evaluation of the bending performance of the steel bars.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a steel bar bending test anti-slip positioning mold structure, including a base, a workbench fixedly connected to the top wall of the base, an mounting plate installed on the rear side of the top wall of the workbench, a fixing plate fixedly connected to the left side of the mounting plate, a motor fixedly connected to the rear side of the outer wall of the mounting plate, a belt installed at the output end of the motor, a turntable installed on the other side of the belt, a bidirectional lead screw fixedly connected to the left end of the turntable, a slider threadedly connected to the outer wall of the bidirectional lead screw, slide rails installed at both the upper and lower ends of the bidirectional lead screw, the slider slidably connected to the outer wall of the slide rails, a clamping plate fixedly connected to the front side of the outer wall of the slider, a rubber plate installed on the inner side of the clamping plate, a fixing block one installed on the left and right sides of the top of the workbench, a buffer mechanism installed on the top of the fixing block one, and the buffer mechanism absorbs the impact force through elastic deformation.

[0007] As a further description of the above technical solution:

[0008] The buffer mechanism includes a second fixed block, which is installed on top of a first fixed block. The front and rear ends of the left side of the second fixed block are fixedly connected to mounting blocks. A first spring is installed on the inner side of the mounting block. A connecting block is installed at the end of the first spring. A damping rod is installed in the middle of the left side of the connecting block. A protrusion is installed at the end of the damping rod. A rubber block is installed at the left end of the protrusion. A second spring is installed on the outer wall of the damping rod.

[0009] As a further description of the above technical solution:

[0010] Two hinges are installed on the left and right ends of the front side of the outer wall of the workbench, and door panels are fixedly connected to the rear sides of the multiple hinges.

[0011] As a further description of the above technical solution:

[0012] The door panel has handles fixedly connected to the left and right ends of the front side of the outer wall, and anti-slip sleeves are rotatably connected to the outer sides of the two handles.

[0013] As a further description of the above technical solution:

[0014] The base has fixed columns at the four corners of its top wall, and a press is fixedly connected to the top of each fixed column.

[0015] As a further description of the above technical solution:

[0016] A hydraulic rod is installed at the bottom of the press, and an upper pressure mold is installed at the bottom end of the hydraulic rod.

[0017] As a further description of the above technical solution:

[0018] An electrical wire is installed on the right side of the outer wall of the workbench, and a controller is installed at the end of the electrical wire.

[0019] As a further description of the above technical solution:

[0020] An installation groove is installed in the middle of the top wall of the workbench.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the motor rotates and drives the transmission belt, which drives the turntable to rotate. The bidirectional lead screw at the bottom of the turntable also rotates synchronously, allowing the slider on the outer wall of the bidirectional lead screw to slide left and right. The clamping plate on the slider can move inward and outward simultaneously, thus clamping the reinforcing bar. It can also precisely control the moving distance and clamping force of the clamping plate to fix and position the reinforcing bar. The rubber plate can increase the friction between the rubber plate and the reinforcing bar, effectively preventing the reinforcing bar from slipping during the test, and improving the accuracy and repeatability of the test.

[0023] 2. In this utility model, a spring is installed on the inner side of the mounting block, a connecting block is installed at the end of the spring, a damping rod is installed in the middle of the left side of the connecting block, a protrusion is installed at the end of the damping rod, a rubber block is installed at the left end of the protrusion, and a spring is installed on the outer wall of the damping rod. The spring and the spring can convert the vibration generated by the test into their own elastic potential energy, and can undergo large deformation when subjected to external force, and quickly return to their original shape after the force disappears, so that they can effectively absorb the impact force generated when the steel bar bends and reduce the damage to the mold and the testing machine. Attached Figure Description

[0024] Figure 1 This is a perspective view of the anti-slip positioning mold structure for the steel bar bending test proposed in this utility model;

[0025] Figure 2 This is a front view of the anti-slip positioning mold structure for the steel bar bending test proposed in this utility model;

[0026] Figure 3 This is a side view of the anti-slip positioning mold structure for the rebar bending test proposed in this utility model;

[0027] Figure 4 This is a partial structural diagram of the anti-slip positioning mold structure for the rebar bending test proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the buffer mechanism of the anti-slip positioning mold structure for the steel bar bending test proposed in this utility model.

[0029] Legend:

[0030] 1. Base; 2. Buffer mechanism; 201. Fixing block two; 202. Spring one; 203. Mounting block; 204. Connecting block; 205. Spring two; 206. Protrusion; 207. Rubber block; 208. Damping rod; 3. Handle; 4. Anti-slip sleeve; 5. Door panel; 6. Hinge; 7. Workbench; 8. Fixing column; 9. Press; 10. Controller; 11. Wire; 12. Motor; 13. Mounting plate; 14. Hydraulic rod; 15. Upper pressure mold; 16. Belt; 17. Turntable; 18. Fixing block one; 19. Fixing plate; 20. Clamping plate; 21. Rubber plate; 22. Slider; 23. Two-way lead screw; 24. Slide rail; 25. Mounting groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a rebar bending test anti-slip positioning mold structure, including a base 1, a workbench 7 fixedly connected to the top wall of the base 1, an mounting plate 13 installed on the rear side of the top wall of the workbench 7, a fixing plate 19 fixedly connected to the left side of the mounting plate 13, a motor 12 fixedly connected to the rear side of the outer wall of the mounting plate 13, a belt 16 installed at the output end of the motor 12, a turntable 17 installed on the other side of the belt 16, a bidirectional lead screw 23 fixedly connected to the left end of the turntable 17, and the outer wall of the bidirectional lead screw 23... A slider 22 is threadedly connected to a double-acting screw 23, and slide rails 24 are installed at both the upper and lower ends of the screw. The slider 22 is slidably connected to the outer wall of the slide rail 24. A clamping plate 20 is fixedly connected to the front side of the outer wall of the slider 22, and a rubber plate 21 is installed on the inner side of the clamping plate 20. The motor 12 rotates and drives the transmission belt 16, which drives the turntable 17 to rotate. The double-acting screw 23 at the bottom of the turntable 17 also rotates synchronously, allowing the slider 22 on the outer wall of the double-acting screw 23 to slide left and right. The clamping plate 20 on the slider 22 can then move inward and outward simultaneously. The clamping plate 20 can precisely control the movement distance and clamping force of the steel bars, and fix and position the steel bars. The rubber plate 21 can increase the friction between the steel bars and the steel bars, effectively preventing the steel bars from slipping during the test, and improving the accuracy and repeatability of the test. The top left and right sides of the workbench 7 are equipped with fixing blocks 18, and the top of the fixing blocks 18 is equipped with a buffer mechanism 2. The buffer mechanism 2 absorbs the impact force through elastic deformation. The front left and right ends of the outer wall of the workbench 7 are equipped with two hinges 6. The rear sides of the multiple hinges 6 are fixedly connected to door panels 5. The front left and right ends of the outer wall of the door panels 5 are fixedly connected to handles 3. The outer sides of the two handles 3 are rotatably connected with anti-slip sleeves 4. The handles 3 are mainly used to facilitate the operator to open and close the door panels 5, so that the door panels 5 can switch between open and closed states, which is convenient for the operation, maintenance and repair of the equipment. The anti-slip sleeves 4 increase the friction of the handle surface 3, so that the operator can grip the handle 3 more firmly and prevent operational errors and failure to open the door panels 5 due to slipping hands.

[0033] Specifically, the motor 12 rotates the transmission belt 16, which drives the turntable 17 to rotate. The double-acting screw 23 at the bottom of the turntable 17 also rotates synchronously, allowing the slider 22 on the outer wall of the double-acting screw 23 to slide left and right. The clamping plate 20 on the slider 22 can move inward and outward simultaneously, thus clamping the reinforcing bar. The movement distance and clamping force of the clamping plate 20 can be precisely controlled to fix and position the reinforcing bar. The rubber plate 21 can increase the friction between the reinforcing bar and the reinforcing bar, effectively preventing the reinforcing bar from slipping during the test and improving the accuracy and repeatability of the test.

[0034] Reference Figure 1 , Figure 2 and Figure 5The buffer mechanism 2 includes a second fixed block 201, which is mounted on top of the first fixed block 18. Mounting blocks 203 are fixedly connected to the front and rear ends of the left side of the second fixed block 201. A first spring 202 is mounted on the inner side of the mounting block 203. A connecting block 204 is mounted at the end of the first spring 202. A damping rod 208 is mounted on the middle left side of the connecting block 204. A protrusion 206 is mounted at the end of the damping rod 208. A rubber block 207 is mounted on the left end of the protrusion 206. A second spring 205 is mounted on the outer wall of the damping rod 208. The first spring 202 is mounted on the inner side of the mounting block 203. A connecting block 204 is mounted at the end of the first spring 202. The damping rod 208 is mounted on the middle left side of the connecting block 204. A protrusion 206 is installed at one end, and a rubber block 207 is installed at the left end of the protrusion 206. A spring 205 is installed on the outer wall of the damping rod 208. Spring 202 and spring 205 can convert the vibration generated by the test into their own elastic potential energy. They can undergo large deformation when subjected to external force and quickly return to their original shape after the force disappears. This allows them to effectively absorb the impact force generated when the steel bar is bent, reducing damage to the mold and testing machine. Fixed columns 8 are fixedly connected to the four corners of the top wall of the base 1. A press 9 is fixedly connected to the top of the fixed column 8. A hydraulic rod 14 is installed at the bottom of the press 9. An upper pressure mold 15 is installed at the bottom of the hydraulic rod 14. The upper pressure mold 15 ensures that uniform pressure is applied to the steel bar during the bending process.

[0035] Specifically, a spring 202 is installed on the inner side of the mounting block 203, a connecting block 204 is installed at the end of the spring 202, a damping rod 208 is installed on the middle left side of the connecting block 204, a protrusion 206 is installed at the end of the damping rod 208, a rubber block 207 is installed at the left end of the protrusion 206, and a spring 205 is installed on the outer wall of the damping rod 208. The spring 202 and the spring 205 can convert the vibration generated by the test into their own elastic potential energy, can undergo large deformation when subjected to external force, and quickly return to their original shape after the force disappears, so that they can effectively absorb the impact force generated when the steel bar bends and reduce the damage to the mold and the testing machine.

[0036] Reference Figure 1 , Figure 2 and Figure 3 A wire 11 is installed on the right side of the outer wall of the workbench 7, and a controller 10 is installed at the end of the wire 11. An installation groove 25 is installed in the middle of the top wall of the workbench 7.

[0037] Specifically, wire 11 is used to connect electrical components in the mold to achieve signal transmission and power supply. Controller 10 receives and processes data from various sensors and displays key parameters during the test on the operation interface in real time, so that operators can understand the progress of the test at any time, identify problems in time, and make adjustments.

[0038] Working principle: The motor 12 rotates and drives the transmission belt 16, which in turn drives the turntable 17 to rotate. The double-acting screw 23 at the bottom of the turntable 17 also rotates synchronously, allowing the slider 22 on the outer wall of the double-acting screw 23 to slide left and right. The clamping plate 20 on the slider 22 can move inward and outward simultaneously, thus clamping the steel bar. The movement distance and clamping force of the clamping plate 20 can be precisely controlled to fix and position the steel bar. The rubber plate 21 can increase the friction between the steel bar and the steel bar, effectively preventing the steel bar from slipping during the test and improving the accuracy and repeatability of the test.

[0039] A spring 202 is installed on the inner side of the mounting block 203. A connecting block 204 is installed at the end of the spring 202. A damping rod 208 is installed in the middle left side of the connecting block 204. A protrusion 206 is installed at the end of the damping rod 208. A rubber block 207 is installed at the left end of the protrusion 206. A spring 205 is installed on the outer wall of the damping rod 208. The spring 202 and the spring 205 can convert the vibration generated by the test into their own elastic potential energy. They can undergo large deformation when subjected to external force and quickly return to their original shape after the force disappears. This allows them to effectively absorb the impact force generated when the steel bar bends and reduce damage to the mold and testing machine.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A non-slip positioning mold structure for rebar bending tests, characterized in that: The device includes a base, a workbench fixedly connected to the top wall of the base, an mounting plate mounted on the rear side of the top wall of the workbench, a fixing plate fixedly connected to the left side of the mounting plate, a motor fixedly connected to the rear side of the outer wall of the mounting plate, a belt mounted on the output end of the motor, a turntable mounted on the other side of the belt, a double-acting lead screw fixedly connected to the left end of the turntable, a slider threadedly connected to the outer wall of the double-acting lead screw, slide rails mounted on both the upper and lower ends of the double-acting lead screw, a slider slidably connected to the outer wall of the slide rails, a clamping plate fixedly connected to the front side of the outer wall of the slider, a rubber plate mounted on the inner side of the clamping plate, and a fixing block mounted on both the left and right sides of the top of the workbench, with a buffer mechanism mounted on the top of the fixing block. The buffer mechanism absorbs impact force through elastic deformation.

2. The anti-slip positioning mold structure for the rebar bending test according to claim 1, characterized in that: The buffer mechanism includes a second fixed block, which is installed on top of a first fixed block. The front and rear ends of the left side of the second fixed block are fixedly connected to mounting blocks. A first spring is installed on the inner side of the mounting block. A connecting block is installed at the end of the first spring. A damping rod is installed in the middle of the left side of the connecting block. A protrusion is installed at the end of the damping rod. A rubber block is installed at the left end of the protrusion. A second spring is installed on the outer wall of the damping rod.

3. The anti-slip positioning mold structure for the rebar bending test according to claim 1, characterized in that: Two hinges are installed on the left and right ends of the front side of the outer wall of the workbench, and door panels are fixedly connected to the rear sides of the multiple hinges.

4. The anti-slip positioning mold structure for the rebar bending test according to claim 3, characterized in that: The door panel has handles fixedly connected to the left and right ends of the front side of the outer wall, and anti-slip sleeves are rotatably connected to the outer sides of the two handles.

5. The anti-slip positioning mold structure for the rebar bending test according to claim 1, characterized in that: The base has fixed columns at the four corners of its top wall, and a press is fixedly connected to the top of each fixed column.

6. The anti-slip positioning mold structure for the rebar bending test according to claim 5, characterized in that: A hydraulic rod is installed at the bottom of the press, and an upper pressure mold is installed at the bottom end of the hydraulic rod.

7. The anti-slip positioning mold structure for the rebar bending test according to claim 1, characterized in that: An electrical wire is installed on the right side of the outer wall of the workbench, and a controller is installed at the end of the electrical wire.

8. The anti-slip positioning mold structure for the rebar bending test according to claim 1, characterized in that: An installation groove is installed in the middle of the top wall of the workbench.

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