Mechanical arm for measuring diameter of reinforcing steel bar

Abstract

The utility model provides a mechanical arm for measuring the diameter of a reinforcing steel bar, which comprises a base, a mounting seat is rotatably mounted at the top of one end of the base through a hinge, a mechanical arm body is rotatably mounted at the top of the mounting seat through a rotating shaft, a front plate is rotatably mounted at the front end of the mechanical arm body through a rotating shaft, and a placing frame is fixed on the surface of the front plate. Compared with the prior art, one end of a reinforcing steel bar is clamped and fixed through the fixing assembly, then the mechanical arm is overturned to be in a vertical state, the reinforcing steel bar is kept in a vertical state, then the measuring assembly is clamped on the two sides of the reinforcing steel bar through telescopic adjustment of the mechanical arm, and the reinforcing steel bar is measured through the sliding column. In the process of measuring the diameter of the reinforcing steel bar, the reinforcing steel bar is kept perpendicular to the ground, and the movable teeth and the fixed teeth are also perpendicular to the reinforcing steel bar, so that the measurement accuracy is improved, manual measurement is replaced, and more convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical arms, in particular to a mechanical arm used for measuring the diameter of steel bars. Background Art

[0002] During routine inspections or testing of rebar, it's necessary to measure its diameter, typically using a vernier caliper. While a vernier caliper is a relatively precise measuring tool, it requires contact with the rebar, making it difficult to use with high-temperature rebar. For example, the temperature of welded rebar often exceeds 150°C, making actual measurement inconvenient.

[0003] Patent CN208780087U proposes a caliper for measuring the diameter of steel bars. It is held with one hand through the left clamping part, the first right clamping part and the second right clamping part, so that the left measuring claw and the right measuring claw of the caliper are clamped with the corresponding diameter of the steel bar to read the diameter value. The hand does not need to touch the steel bar during the entire measurement process.

[0004] In the above method, the steel bar diameter is read by clamping the left and right measuring claws on both sides of the steel bar. However, this method may cause errors in the measurement of the steel bar diameter when the steel bar is not perpendicular to the ground or the positions of the left and right sets of measuring claws are not on the same horizontal line. In addition, the handheld structure requires manual operation, which is time-consuming and labor-intensive during the steel bar detection process. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a robotic arm for measuring the diameter of steel bars to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. One end of the steel bar is clamped and fixed by a fixed component. Then the robotic arm is flipped to a vertical shape to maintain the vertical state of the steel bar. Then, through the telescopic adjustment of the robotic arm, the measuring component is clamped on both sides of the steel bar to measure the diameter of the steel bar. During this process, the steel bar remains perpendicular to the ground, and the moving teeth and the fixed teeth are also perpendicular to the steel bar, thereby improving the measurement accuracy. At the same time, it also replaces manual measurement, which is more convenient and quick.

[0006] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a mechanical arm for measuring the diameter of steel bars, comprising a base, a mounting seat is rotatably installed on the top of one end of the base through a hinge, and a mechanical arm body is rotatably installed on the top of the mounting seat through a rotating shaft, the front end of the mechanical arm body is rotatably installed on a front plate through a rotating shaft, and a placement frame is fixed on the surface of the front plate, the front plate is located on one side of the placement frame and is provided with a measuring component, the measuring component comprises a sliding column, a fixed tooth is fixed at the bottom of the sliding column, and the fixed tooth and the lowest point of the placement frame are in the same straight line, a movable tooth is provided at the upper end of the fixed tooth, the base is located on the outside of the mounting seat and is provided with a fixing component, the fixing component comprises a bottom plate, the bottom plate is fixed on one side of the base, and a lower splint is provided on the top of the bottom plate, and an upper splint is provided on the top of the lower splint.

[0007] Furthermore, the base is provided with a receiving groove at the bottom of the mounting seat, and two first electric push rods are symmetrically mounted in the receiving groove via a rotating shaft, and the extended ends of the first electric push rods are rotatably connected to the mounting seat via the rotating shaft.

[0008] Furthermore, the measuring assembly further comprises a sliding frame, and a sliding frame is slidably sleeved on a position on the surface of the sliding column corresponding to the movable tooth, and the movable tooth is fixed to the sliding frame.

[0009] Furthermore, a spring is fixed to the outer side of the sliding frame, and the bottom of the spring is fixedly connected to the bottom of the sliding column.

[0010] Furthermore, a rangefinder is fixed to one side of the bottom of the sliding column, and a receiving plate is provided on the side of the sliding frame at a position corresponding to the rangefinder.

[0011] Furthermore, a pull rope is fixed on the surface of the base, and the pull rope slides through the front plate and is fixedly connected to the sliding frame.

[0012] Furthermore, the fixing assembly also includes a rotating plate, the top of the base plate is rotatably connected to the rotating plate through a rotating shaft, and the lower clamping plate is fixed on the rotating plate, a connecting plate is fixed on one side of the top of the rotating plate, and the other end of the connecting plate is fixed to the mounting seat.

[0013] Furthermore, a second electric push rod is fixed to the position of the rotating plate at the top of the upper clamping plate, and the extended end of the second electric push rod is fixedly connected to the upper clamping plate.

[0014] The beneficial effects of the utility model are as follows: the utility model is a mechanical arm for measuring the diameter of steel bars, comprising a base; a storage slot; a first electric push rod; a mounting seat; a mechanical arm body; a front plate; a placement frame; a measuring assembly; a sliding column; a sliding frame; a moving tooth; a fixed tooth; a spring; a distance meter; a pull rope; a fixing assembly; a bottom plate; a rotating plate; a connecting plate; a second electric push rod; an upper clamping plate; and a lower clamping plate.

[0015] 1. The utility model uses the second electric push rod to drive the upper clamping plate to move, clamping and fixing one end of the steel bar. When the turning plate is flipped to a horizontal state, the upper and lower clamping plates cooperate with the placement frame to transform the steel bar into a vertical state for measurement.

[0016] 2. When the robot arm body is placed flat, the pull rope is in a relaxed state. Due to the elastic force of the spring, the movable tooth slides through the slide frame to the point where the slide column is farthest from the fixed tooth. When the robot arm is flipped to a vertical position and the robot arm drives the front plate to rise a certain distance through its own driving structure, the pull rope will pull the slide frame to slide along the slide column, and the movable tooth will approach the fixed tooth until it contacts both sides of the steel bar. The distance between the fixed tooth and the movable tooth is then measured by a distance meter to obtain the diameter of the steel bar.

[0017] 3. The utility model can drive the base and the fixed component to flip through the first electric push rod, thereby facilitating the placement and measurement of steel bars.

[0018] 4. Compared with the existing technology, the present invention clamps and fixes one end of the steel bar through a fixing component, and then the robotic arm flips to a vertical shape to maintain the vertical state of the steel bar. Then, through the telescopic adjustment of the robotic arm, the measuring component is clamped on both sides of the steel bar to measure the diameter of the steel bar. During this process, the steel bar remains perpendicular to the ground, and the movable teeth and the fixed teeth are also perpendicular to the steel bar, thereby improving the measurement accuracy. At the same time, it also replaces manual measurement, which is more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a mechanical arm for measuring steel bar diameters according to the present invention;

[0020] Figure 2 This is a schematic diagram of the connection between the first electric push rod and the mounting base of a mechanical arm for measuring steel bar diameters in the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of a measuring component of a mechanical arm for measuring the diameter of steel bars in the present utility model;

[0022] Figure 4 This is a schematic diagram of the structure of a fixed component of a robotic arm for measuring steel bar diameters according to the present invention.

[0023] In the figure: 1. Base; 11. Storage slot; 12. First electric push rod; 2. Mounting seat; 21. Robot arm body; 22. Front plate; 23. Placement frame; 3. Measuring component; 31. Sliding column; 32. Sliding frame; 33. Moving tooth; 34. Fixed tooth; 35. Spring; 36. Distance meter; 37. Pull rope; 4. Fixed component; 41. Bottom plate; 42. Rotating plate; 43. Connecting plate; 44. Second electric push rod; 45. Upper clamping plate; 46. Lower clamping plate. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] See also Figures 1 to 4 The utility model provides a technical solution: a mechanical arm for measuring the diameter of steel bars, comprising a base 1, a mounting seat 2 is rotatably mounted on the top of one end of the base 1 through a hinge, and a mechanical arm body 21 is rotatably mounted on the top of the mounting seat 2 through a rotating shaft, a front plate 22 is rotatably mounted on the front end of the mechanical arm body 21 through a rotating shaft, and a placement frame 23 is fixed on the surface of the front plate 22, the front plate 22 is located on one side of the placement frame 23 and a measuring component 3 is provided, the measuring component 3 includes a sliding column 31, a fixed tooth 34 is fixed on the bottom of the sliding column 31, and the fixed tooth 34 is on the same straight line as the lowest point of the placement frame 23, the A movable tooth 33 is provided at the upper end of the fixed tooth 34, and the base 1 is located on the outside of the mounting seat 2 and is provided with a fixed component 4, and the fixed component 4 includes a bottom plate 41, and the bottom plate 41 is fixed to one side of the base 1, and a lower splint 46 is provided on the top of the bottom plate 41, and an upper splint 45 is provided on the top of the lower splint 46. When using the device, the robotic arm is flipped flat, one end of the steel bar is inserted into the fixed component 4, and the other end is placed on the upper end of the placement frame 23, and then the robotic arm drives the steel bar to flip to a vertical shape, and the diameter of the steel bar is measured by the measuring component 3. The robotic arm in this scheme is a common multi-axis robotic arm with a drive device to adjust the position of the front end of the robotic arm.

[0026] In this embodiment, the base 1 is provided with a receiving groove 11 at the bottom of the mounting seat 2, and two first electric push rods 12 are installed inside the receiving groove 11 through a rotating shaft and symmetrically rotated. The extended end of the first electric push rod 12 is rotatably connected to the mounting seat 2 through the rotating shaft. The first electric push rod 12 can drive the base 1 and the fixing component 4 to flip, thereby facilitating the placement and measurement of steel bars.

[0027] In this embodiment, the measuring component 3 also includes a sliding frame 32, and the sliding frame 32 is slidably sleeved on the surface of the sliding column 31 at the position corresponding to the moving tooth 33, and the moving tooth 33 is fixed to the sliding frame 32. A spring 35 is fixed to the outside of the sliding frame 32, and the bottom of the spring 35 is fixedly connected to the bottom of the sliding column 31. A rangefinder 36 is fixed to one side of the bottom of the sliding column 31, and a receiving plate is provided on the side of the sliding frame 32 corresponding to the position of the rangefinder 36. A pull rope 37 is fixed on the surface of the base 1, and the pull rope 37 slides through the front plate 22 and is fixedly connected to the sliding frame 32. When the robot body 21 is placed flat, the pull rope 37 is in a relaxed state. Through the elastic force of the spring 35, the mobile tooth 33 slides through the slide frame 32 to the farthest point from the slide column 31 to the fixed tooth 34. When the robot arm is flipped to a vertical position and the robot arm drives the front plate 22 to rise a certain distance through its own driving structure, the pull rope 37 will pull the slide frame 32 to slide along the slide column 31, and the mobile tooth 33 will approach the side of the fixed tooth 34 until it contacts both sides of the steel bar. Then, the distance between the fixed tooth 34 and the mobile tooth 33 is measured by the distance meter 36 to obtain the diameter of the steel bar.

[0028] When the rotating plate 42 is turned to the horizontal position, the upper clamping plate 45 and the lower clamping plate 46 cooperate with the placement frame 23 to transform the steel bar into a vertical position for measurement.

[0029] When the device is used, the robot arm is flipped and laid flat. When the robot arm body 21 is laid flat, the base 1 is kept vertical together with the rotating plate 42 by the action of the connecting plate 43, wherein the rotation base points of the rotating plate 42 and the base 1 are in the same straight line. Then, one end of the steel bar is inserted between the upper clamping plate 45 and the lower clamping plate 46, and the upper clamping plate 45 is driven to move by the second electric push rod 44 to clamp and fix one end of the steel bar. When the rotating plate 42 is flipped to a horizontal state, the upper clamping plate 45 and the lower clamping plate 46 cooperate with the placement frame 23 to transform the steel bar into a vertical state. When the main body 21 is laid flat, the pull rope 37 is in a relaxed state. Through the elastic force of the spring 35, the movable tooth 33 slides through the slide frame 32 to the farthest point from the slide column 31 to the fixed tooth 34. When the robotic arm flips to a vertical position and the robotic arm drives the front plate 22 to rise a certain distance through its own driving structure, the pull rope 37 will pull the slide frame 32 to slide along the slide column 31, and the movable tooth 33 will approach the side of the fixed tooth 34 until it contacts both sides of the steel bar. Then the distance between the fixed tooth 34 and the movable tooth 33 is measured by the distance meter 36 to obtain the diameter of the steel bar.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A mechanical arm for measuring the diameter of a steel bar, comprising a base (1), characterized in that: The top of one end of the base (1) is rotatably mounted with a mounting seat (2) via a hinge, and the top of the mounting seat (2) is rotatably mounted with a mechanical arm body (21) via a rotating shaft, and the front end of the mechanical arm body (21) is rotatably mounted with a front plate (22) via a rotating shaft, and a placement frame (23) is fixed on the surface of the front plate (22), and a measuring component (3) is provided on one side of the placement frame (23), and the measuring component (3) includes a sliding column (31), and the bottom of the sliding column (31) is A fixed tooth (34) is fixed, and the fixed tooth (34) and the lowest point of the placement frame (23) are in the same straight line. A movable tooth (33) is provided at the upper end of the fixed tooth (34). The base (1) is located outside the mounting seat (2) and is provided with a fixed component (4). The fixed component (4) includes a bottom plate (41). The bottom plate (41) is fixed to one side of the base (1), and a lower clamping plate (46) is provided on the top of the bottom plate (41). An upper clamping plate (45) is provided on the top of the lower clamping plate (46).

2. The mechanical arm for measuring steel bar diameter according to claim 1, characterized in that: The base (1) is located at the bottom of the mounting seat (2) and is provided with a receiving groove (11), and two first electric push rods (12) are symmetrically mounted in the receiving groove (11) via a rotating shaft, and the extended ends of the first electric push rods (12) are rotatably connected to the mounting seat (2) via the rotating shaft.

3. The mechanical arm for measuring steel bar diameter according to claim 1, characterized in that: The measuring assembly (3) further comprises a sliding frame (32), the sliding frame (32) being slidably sleeved on the surface of the sliding column (31) at a position corresponding to the moving tooth (33), and the moving tooth (33) is fixed to the sliding frame (32).

4. The mechanical arm for measuring steel bar diameter according to claim 3, characterized in that: A spring (35) is fixed on the outer side of the sliding frame (32), and the bottom of the spring (35) is fixedly connected to the bottom of the sliding column (31).

5. The mechanical arm for measuring steel bar diameter according to claim 4, characterized in that: A distance meter (36) is fixed to one side of the bottom of the slide column (31), and a receiving plate is provided on the side of the slide frame (32) at a position corresponding to the distance meter (36).

6. The mechanical arm for measuring steel bar diameter according to claim 5, characterized in that: A pull rope (37) is fixed on the surface of the base (1), and the pull rope (37) slides through the front plate (22) and is fixedly connected to the sliding frame (32).

7. The mechanical arm for measuring steel bar diameter according to claim 1, characterized in that: The fixing assembly (4) further comprises a rotating plate (42), the top of the base plate (41) is rotatably connected to the rotating plate (42) via a rotating shaft, and the lower clamping plate (46) is fixed on the rotating plate (42), a connecting plate (43) is fixed on one side of the top of the rotating plate (42), and the other end of the connecting plate (43) is fixed to the mounting seat (2).

8. The mechanical arm for measuring steel bar diameter according to claim 7, characterized in that: A second electric push rod (44) is fixed to the position of the rotating plate (42) located on the top of the upper clamping plate (45), and the extended end of the second electric push rod (44) is fixedly connected to the upper clamping plate (45).

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