A steel bar gauge device and its gauging method

Abstract

The present invention provides a steel bar gauge device and a gauging method thereof. The device includes a frame, a clamping assembly disposed on the frame for placing a steel bar, a driving assembly disposed below the clamping assembly, and a gauging assembly for scribing the steel bar disposed on one side of the clamping assembly. The driving assembly drives the clamping assembly to move towards the gauging assembly, abut against the gauging assembly, and then gauge the steel bar. The beneficial effects of the present invention are reflected in that: by manually pushing and pulling easily or automatically scribing lines with an actuator such as an electric mechanism, it only takes less than 10 seconds to complete the marking of the entire steel bar at one time, and the scribing intervals of 5 mm and 10 mm can be quickly switched between the two specifications.

Description

Technical Field

[0001] The present invention relates to the technical field of building engineering inspection, and particularly relates to a rebar gauge device and a gauging method thereof. Background Technique

[0002] Rebar refers to steel bars used in reinforced concrete and prestressed reinforced concrete. Its cross-section is circular and sometimes square with rounded corners. It includes plain round bars, ribbed bars, and twisted bars. Rebar mainly bears tensile stress in concrete. It is widely used in various building structures, especially large-scale, heavy-duty, light-thin-walled, and high-rise building structures. Understanding the relevant parameters of rebar can better utilize rebar. How to measure rebar better and more accurately plays a very important role in the construction field.

[0003] Rebar parameters generally include length and diameter. Through these parameters, calculations such as elongation rate are carried out to confirm whether the mechanical properties of the rebar meet the requirements. Before conducting a rebar tensile test, marks at intervals of 10 mm or 5 mm need to be made on the surface of the tested rebar. Currently, the marking methods include manual scribing with a hacksaw blade, dotting with a dotting scribing machine, and marking with a laser marking machine, etc. Currently, the most commonly used method is to use a hacksaw blade to scribe. The worker holds the hacksaw blade, places the rebar on the template, and uses the hacksaw blade to scribe marks at intervals of 5 mm or 10 mm. For one rebar, 45 to 50 markings need to be made, which takes a relatively long time and has no accuracy in scribing. For the dotting scribing instrument, it impacts the surface of the rebar at intervals through a punch to leave marks, but this method has a large noise and low efficiency. The laser marking method is a relatively new marking method at present and can achieve high-precision marking of rebar. However, to ensure the marking effect, high-power laser slow marking is required, which results in a slow marking speed and high cost. Moreover, due to the differences in rebar and surface contamination, etc., once the laser does not engrave to a sufficient depth, often after the tensile test, the marks engraved by the laser will disappear, resulting in the failure of the test. Summary of the Invention

[0004] In order to solve the deficiencies of the prior art, the present invention provides a rebar gauge device and a gauging method thereof.

[0005] The object of the present invention is achieved through the following technical solutions:

[0006] A rebar gauge device includes a frame, a clamping assembly disposed on the frame for placing the rebar, a driving assembly disposed below the clamping assembly, and a gauging assembly for scribing the rebar disposed on one side of the clamping assembly. The driving assembly drives the clamping assembly to move towards the gauging assembly and abuts against the gauging assembly to perform gauging on the rebar.

[0007] Preferably, the clamping assembly includes a clamping push plate and clamping openings for clamping steel bars arranged at both ends of the clamping push plate, and the clamping opening at one end is movably arranged on the clamping push plate relative to the other clamping opening.

[0008] Preferably, each of the clamping openings is composed of two relatively arranged clamping blocks, the outer sides of the upper ends of the clamping blocks are placed in the slide rails, and the bottom of one of the clamping blocks is fixedly connected to the clamping push plate.

[0009] Preferably, the driving assembly includes a scribing platform arranged below the clamping push plate, both ends of the scribing platform are placed on guide rails, the guide rails are mounted on a frame, and a push rod and a driving cylinder are arranged at the bottom of the scribing platform.

[0010] Preferably, a steel bar supporting plate is connected above the scribing platform, a clamping handwheel is connected to the steel bar supporting plate through a bracket, one end of the clamping handwheel extends towards the clamping push plate, the bottom of the clamping push plate is connected to the steel bar supporting plate through a connecting plate, and when the scribing platform moves, it drives the steel bar supporting plate, the clamping handwheel and the clamping push plate to move reciprocally towards the gauging assembly.

[0011] Preferably, a left - right sliding gap is arranged between the steel bar supporting plate and the scribing platform, the device further includes an adjusting handle, the adjusting handle is placed on the steel bar supporting plate, the middle of the adjusting handle is pivotally connected to the steel bar supporting plate through a screw, the distal end of the adjusting handle is pivotally connected to the scribing platform through another screw, and by rotating the adjusting handle, it drives the steel bar supporting plate and the scribing platform to move within the sliding gap.

[0012] Preferably, the gauging assembly includes a tool penetrating through a rotating shaft, the rotating shaft is mounted on the top of the slide rail, a tool supporting plate is further arranged on one side of the rotating shaft, the distance between the tool supporting plate and the rotating shaft is less than the length of the tool, and the tool rotates on the rotating shaft along a through - hole.

[0013] Preferably, a second driving cylinder is arranged on the other side of the driving cylinder, and the cylinder shaft of the second cylinder is connected to the clamping block on the side of the tool.

[0014] Preferably, the gauging method of any one of the above - mentioned steel bar gauging devices includes the following steps:

[0015] S1. Place the steel bar to be gauged in the clamping opening, and adjust the clamping opening at the other end of the clamping push plate according to the length of the steel bar to adapt to the length of the steel bar;

[0016] S2. Select the number of tools according to the length of the steel bar and the length to be gauged;

[0017] S3. Clamp the steel bar through the clamping handwheel or the second driving cylinder;

[0018] S4. Push the push rod or start the driving cylinder to drive the scribing platform to drive the entire clamping assembly to move towards the gauge assembly until the surface of the steel bar is scribed with gauges.

[0019] Preferably, the gauge method further includes a step of adjusting the gauge.

[0020] S5. After the first gauge marking is completed, restore, and then adjust the distance between the steel bar support plate and the scribing platform by rotating the adjustment handle to adjust the position of the steel bar.

[0021] S6. After the adjustment is completed, perform step S4 again to perform gauge scribing.

[0022] The beneficial effects of the present invention are reflected in: by manually pushing and pulling easily or automatically scribing with an actuator such as an electric mechanism, it only takes less than 10 seconds to complete the marking of the entire steel bar, and it can quickly switch between two specifications of scribing intervals of 5 mm and 10 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 : Schematic structural diagram of the present invention.

[0024] Among them, 1 is the frame, 11 is the steel bar, 12 is the rotating shaft, 13 is the cutter, 14 is the cutter support plate, 2 is the clamping push plate, 3 is the block, 31 is the second cylinder, 32 is the right-side bayonet, 4 is the clamping handwheel, 5 is the steel bar support plate, 6 is the scribing platform, 61 is the driving cylinder, 7 is the guide rail, 8 is the push rod, 9 is the adjustment handle, 91 is the middle part, and 92 is the distal end of the adjustment handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following combines the embodiments and Figure 1 elaborates on the technical solution of the present invention. The present invention discloses a steel bar gauging device, including a frame 1. The frame 1 includes two oppositely arranged portal frames, and a group of support rods are arranged on the upper part of the portal frames. The top of the portal frame is arranged in the form of a guide rail.

[0026] The clamping assembly on the frame for placing the steel bar 11, a driving assembly is arranged below the clamping assembly, a gauge assembly for scribing the steel bar is arranged on one side of the clamping assembly, and the driving assembly drives the clamping assembly to move towards the gauge assembly, abutting against the gauge assembly to gauge the steel bar.

[0027] Specifically, the clamping assembly includes a clamping push plate 2 and clamping openings for clamping the steel bars 11 provided at both ends of the clamping push plate 2. The clamping opening at one end is movably arranged relative to the other clamping opening on the clamping push plate 2. In this embodiment, the right clamping opening 32 on the right side of the clamping push plate 2 can move along the clamping push plate 2 towards the left clamping opening. Each clamping opening is composed of two oppositely arranged clamping blocks 3. The outer side of the upper end of the clamping block 3 of the left clamping opening is placed in the guide rail type slide rail at the top of the portal frame. The bottom of the clamping block 3 near the proximal end of the clamping push plate 2 is fixedly connected to the clamping push plate 2. On the other side of the clamping block 3 at the distal end of the clamping push plate 2, a second cylinder 31 is provided for pressing the clamping block 3 to clamp the steel bars 11.

[0028] The driving assembly includes a marking platform 6 arranged below the clamping push plate 2. Both ends of the marking platform 6 are placed on the guide rails 7, and the guide rails 7 are erected on the support rods. A push rod 8 and a driving cylinder 61 are arranged at the bottom of the marking platform 6.

[0029] To further achieve adjustable gauge length, a steel bar support plate 5 is connected above the marking platform 6. A clamping handwheel 4 is connected to the steel bar support plate 5 through a bracket. One end of the clamping handwheel 4 extends towards the clamping push plate 2. The bottom of the clamping push plate 2 is connected to the steel bar support plate 5 through a connecting plate. When the marking platform 6 moves, it drives the steel bar support plate 5, the clamping handwheel 4 and the clamping push plate 2 to reciprocate towards the gauge component.

[0030] A left - right sliding gap is provided between the steel bar support plate 5 and the marking platform 6. Specifically, the gap activity can be realized through mutually cooperating slots and holes. In this embodiment, the distance between the cutting tools is 10 mm. In order to make the device also suitable for a marking distance of 5 mm, a left - right sliding gap of 5 mm is provided between the steel bar support plate 5 and the marking platform 6. During adjustment, it is adjusted through an adjustment handle 9. The adjustment handle 9 is placed on the steel bar support plate 5. The middle part 91 of the adjustment handle 9 is pivotally connected to the steel bar support plate 5 through a screw. The distal end 92 of the adjustment handle 9 is pivotally connected to the marking platform 6 through another screw, and in combination with the mutually cooperating slots and holes, by rotating the adjustment handle 9, the steel bar support plate 5 and the marking platform 6 are driven to move within the sliding gap.

[0031] The gauge component includes a cutter 13 inserted through a rotating shaft 12. The rotating shaft 12 is mounted on top of a slide rail. On one side of the rotating shaft 12, there is also a cutter support plate 14. The distance between the cutter support plate 14 and the rotating shaft 12 is less than the length of the cutter 13. The cutter 13 rotates on the rotating shaft 12 along the insertion hole. The cutter 13 can be selected according to the length of the steel bar that needs to be gauged and marked. The redundant cutters can be rotated and placed on the cutter support plate 14. At the same time, the setting of the rotating shaft 12 also enables the cutter to better fit the uneven surface of the steel bar to ensure effective gauging of the steel bar.

[0032] The present invention also discloses a gauging method for a steel bar gauging device of any one of the above, including the following steps:

[0033] S1. Place the steel bar 11 to be gauged in the bayonet, and adjust the bayonet at the other end of the clamping push plate 2 according to the length of the steel bar to adapt to the length of the steel bar 11;

[0034] S2. Select the number of cutters 13 according to the length of the steel bar 11 and the length to be gauged;

[0035] S3. Clamp the steel bar 11 by tightening the clamping handwheel 4 or the second driving cylinder 31; specifically, tightening the clamping handwheel 4 will push the clamping push plate 2 to move towards the block 3 on the other side, thereby clamping the steel bar. Or, when one end of the clamping handwheel is fixed, that is, the block 3 is also fixed, when the second cylinder 31 works, it will drive the block 3 on the side of the second cylinder to move towards the clamping handwheel 4 side, thereby achieving the purpose of clamping the steel bar.

[0036] S4. Push the push rod 8 or start the driving cylinder 61 to drive the scribing platform 6 to drive the entire clamping component to move towards the gauge component until the surface of the steel bar is gauged and marked.

[0037] The gauging method further includes an adjustment step for gauging,

[0038] S5. After one gauging is completed, restore, and then adjust the distance between the steel bar support plate 5 and the scribing platform 6 by rotating the adjustment handle 9 to adjust the position of the steel bar;

[0039] S6. After the adjustment is completed, perform step S4 again to perform gauging and marking.

[0040] In this embodiment, the cutter 13 is composed of several blades. The blades can be saw blades. By grinding the two side surfaces of the saw blade edge, a sharp edge is formed so that the width of the marked line meets the specification requirements. At the same time, considering the durability of the tool, other materials such as diamond that can leave scratches on the surface of the steel bar can also be selected to make the blades.

[0041] Of course, there are still many specific implementation manners of the present invention, which will not be enumerated one by one here. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A method for marking gauge lengths of steel bars, characterized in that: The steel bar gauge device comprises a frame, a clamping assembly for placing steel bars arranged on the frame, a driving assembly arranged below the clamping assembly, a gauge assembly for marking steel bars arranged on one side of the clamping assembly, the driving assembly drives the clamping assembly to move in the direction of the gauge assembly, abuts against the gauge assembly and then marks the steel bars; the clamping assembly comprises a clamping push plate, the driving assembly comprises a marking platform arranged below the clamping push plate, both ends of the marking platform are placed on guide rails, the guide rails are mounted on the frame, and a push rod and a driving cylinder are arranged at the bottom of the marking platform; A steel bar bracket plate is connected above the marking platform, a clamping hand wheel is provided on the steel bar bracket plate through a bracket, one end of the clamping hand wheel extends toward the clamping push plate, and the bottom of the clamping push plate is connected to the steel bar bracket plate through a connecting plate. The marking platform moves, driving the steel bar bracket plate, the clamping hand wheel and the clamping push plate to reciprocate toward the direction of the gauge length assembly; A left-right sliding gap is provided between the steel bar bracket plate and the marking platform, and the device further comprises an adjusting handle, the adjusting handle is placed on the steel bar bracket plate, the middle portion of the adjusting handle is connected to the steel bar bracket plate via a screw pivot, the distal end of the adjusting handle is connected to the marking platform via another screw pivot, and the adjusting handle is rotated to drive the steel bar bracket plate and the marking platform to move within the sliding gap; the marking method comprises the following steps: S1. Place the steel bar to be gauged in the clamping slot, and adjust the clamping slot at the other end of the push plate according to the length of the steel bar to adapt to the length of the steel bar; S2. Select the number of cutters according to the length of the steel bar and the length to be gauged; S3, clamping the steel bar by means of a clamping hand wheel or a second driving cylinder; S4, push the push rod or start the driving cylinder to drive the marking platform to drive the entire clamping assembly to move in the direction of the gauge assembly until the gauge is marked on the steel bar surface; S5. After one gauge is completed, the gauge is restored, and the distance between the steel bar support plate and the marking platform is adjusted by turning the adjustment handle to adjust the position of the steel bar; S6. After the adjustment is completed, perform step S4 again to mark the gauge length.

2. The method for marking gauge lengths of steel bars according to claim 1, characterized in that: The clamping assembly also includes snap-ons for clamping steel bars, which are arranged at both ends of the clamping push plate, wherein the snap-on at one end is movably arranged on the clamping push plate relative to the other snap-on.

3. The method for marking gauge lengths of steel bars according to claim 2, characterized in that: Each of the bayonet ports is composed of two oppositely arranged bayonet blocks, the outer sides of the upper ends of the bayonet blocks are placed in the slide rails, and the bottom of one of the bayonet blocks is fixedly connected to the clamping push plate.

4. The method for marking gauge lengths of steel bars according to claim 3, characterized in that: The gauge assembly includes a tool inserted into a rotating shaft, the rotating shaft is mounted on the top of the slide rail, a tool support plate is also provided on one side of the rotating shaft, the distance between the tool support plate and the rotating shaft is less than the tool length, and the tool rotates on the rotating shaft along the inserted hole.

5. The method for marking gauge lengths of steel bars according to claim 4, characterized in that: A second driving cylinder is arranged on the other side of the driving cylinder, and a cylinder shaft of the second driving cylinder is connected to a clamping block on the tool side.

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