High-precision deformed steel bar size detection device

Abstract

The utility model discloses a high-precision deformed steel bar size detection device which comprises a base, a front conveying frame and a rear conveying frame are installed on the base, conveying wheels are installed on the conveying frames, and a size detection mechanism is arranged between the front conveying frame and the rear conveying frame. The size detection mechanism comprises a shell, a detection round hole is formed in the shell, a circle of balls are installed around the detection round hole, the balls are partially exposed out of the detection round hole, a detection mechanism for detecting the displacement of the balls is installed in the shell, and the detection mechanism is connected with a calculation displayer installed on the base; according to the detection device, when the round bar is conveyed, the balls correspondingly displace, the pressure sensor sends a changed pressure signal to the calculation displayer, the calculation displayer can calculate the displacement amount of the balls, and therefore the size of the deformed steel bar is detected in combination with the displacement conditions of the multiple balls, efficiency is high, and precision is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of threaded steel production detection equipment, and specifically relates to a high-precision threaded steel bar size detection device. Background Art

[0002] Rebar is a type of steel widely used in civil engineering construction, mainly used in building structures such as houses, bridges, and roads; rebar is a small-shaped steel product, mainly used in the skeleton of reinforced concrete building components. Rebar needs to be processed through round bars and patterned rollers on the bar finished rolling mill to produce rebar.

[0003] Rebar has strict size specifications, so the bars in the previous process need to be inspected for size. Only when they meet the qualified size standards can they be processed into rebar. Currently, when round bars are inspected for size, their diameter is generally measured by vernier calipers, which is inefficient and low in precision. Utility Model Content

[0004] The utility model provides a high-precision threaded steel bar size detection device. When the round bar is conveyed, the ball of the detection device is displaced accordingly, and the pressure sensor sends the changed pressure signal to a calculation display. The calculation display can calculate the displacement of the ball, so as to detect the size of the threaded steel bar in combination with the displacement of multiple balls. The device has high efficiency and high precision, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-precision threaded steel bar size detection device, comprising a base, a front and rear conveying racks are installed on the base, a conveying wheel is installed on the conveying rack, and a size detection mechanism is arranged between the front and rear conveying racks; the size detection mechanism comprises a shell, a detection circular hole is arranged in the shell, and a circle of balls is arranged around the detection circular hole, the balls are partially exposed from the detection circular hole, a detection mechanism for detecting the displacement of the balls is installed in the shell, and the detection mechanism is connected to a computer display installed on the base.

[0006] Preferably, the shell includes a first shell and a second shell that are arranged opposite to each other, and screw holes are correspondingly provided on the edges of the first shell and the second shell, and are fixed by screws.

[0007] Preferably, the detection mechanism also includes a positioning groove, a compression spring and a pressure sensor. The ball can only slide along the positioning groove. The compression spring is also provided in the positioning groove. The shell is fixed with the pressure sensor in contact with the compression spring. The pressure sensor connects the wiring harness to the computer display through a wire groove.

[0008] Preferably, the positioning groove is provided with a ventilation groove penetrating the outside.

[0009] Preferably, a support frame for supporting the shell is provided on the base, a connecting head is provided at the top of the support frame, a connecting slot adapted to the connecting head is provided at the bottom end of the shell, and the shell and the support frame are fixed by fastening screws.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. When the round bar is conveyed, the ball will be displaced accordingly, and the pressure sensor will send the changing pressure signal to the calculation display, which can calculate the displacement of the ball, so as to detect the size of the threaded steel bar in combination with the displacement of multiple balls, with high efficiency and high precision.

[0012] 2. By comparing multiple ball test data, it is not difficult to obtain the actual size data after local damage occurs, and the damage and deformation position can also be detected.

[0013] 3. When the round bar is conveyed, the ball contacts it in rolling point, which causes less wear on the bar and can also be detected simultaneously during conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the side structure of the first shell of the utility model;

[0016] Figure 3 It is a side view structural schematic diagram of the second housing of the utility model;

[0017] Figure 4 This is a schematic diagram of the housing and support frame structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the internal cross-sectional structure of the shell of the utility model;

[0019] Figure 6 This is a schematic diagram of the housing and ball structure of the utility model.

[0020] In the figure: 1. base; 2. conveying frame; 3. conveying wheel; 4. shell; 5. detection hole; 6. ball bearing; 7. detection mechanism; 8. calculation display; 9. first shell; 10. second shell; 11. screw hole; 12. screw; 13. positioning groove; 14. extrusion spring; 15. pressure sensor; 16. wire groove; 17. ventilation groove; 18. support frame; 19. connector; 20. connecting card slot; 21. fastening screw. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-6 The utility model provides a high-precision threaded steel bar size detection device, comprising a base 1, on which two front and rear conveying frames 2 are installed, on which conveying frames 2 are installed conveying wheels 3, and between the front and rear conveying frames 2, a size detection mechanism is arranged; the size detection mechanism comprises a shell 4, in which a detection circular hole 5 is arranged, and a circle of balls 6 are arranged around the detection circular hole 5, and the balls 6 are partially exposed from the detection circular hole 5, and a detection mechanism 7 for detecting the displacement of the balls 6 is arranged in the shell 4, and the detection mechanism 7 is connected to a detection mechanism 7 installed in the shell 4. The calculation display 8 on the base 1 is described above; when in use, the threaded steel round bar is conveyed by the conveying wheel 3, during which the round bar will pass through the detection circular hole 5, and then the ball 6 will be squeezed on the surface of the threaded steel round bar. When the round bar is conveyed, the ball 6 is in rolling point contact with it and will not interfere with its conveying. According to the size of the round bar, the ball 6 will be displaced to a corresponding extent. After the ball 6 is displaced, the detection mechanism 7 cooperates with the calculation display 8 to calculate the displacement of the ball 6, thereby combining the displacement of multiple balls 6 to detect the size of the threaded steel bar.

[0023] Specifically, the shell 4 includes a first shell 9 and a second shell 10 that are relatively arranged. The edges of the first shell 9 and the second shell 10 are correspondingly provided with screw holes 11, and are fixed by screws 12. In this embodiment, the shell 4 can be easily opened by the detachable screws 12, which further facilitates the assembly, disassembly and replacement of internal parts.

[0024] Specifically, the detection mechanism 7 also includes a positioning groove 13, an extrusion spring 14 and a pressure sensor 15. The ball 6 can only slide along the positioning groove 13. The extrusion spring 14 is also provided in the positioning groove 13. The housing 4 is fixed with the pressure sensor 15 in contact with the extrusion spring 14. The pressure sensor 15 connects the wiring harness to the computer display 8 through the wire groove 16. In this embodiment, according to the size of the round bar, the ball 6 will be displaced to a corresponding extent. After the ball 6 is displaced, the extrusion spring 14 will be deformed. Since the deformation of the extrusion spring 14 will change the pressure on the pressure sensor 15, the pressure sensor 15 sends the changed pressure signal to the computer display 8. The computer display 8 can calculate the displacement of the ball 6, thereby detecting the size of the threaded steel bar in combination with the displacement of multiple balls 6.

[0025] Specifically, the positioning groove 13 is provided with a ventilation groove 17 that passes through the outside; in this embodiment, the positioning groove 13 is prevented from forming a closed cavity. When the ball 6 slides in the positioning groove 13, the air pressure inside the positioning groove 13 will not change significantly, thereby reducing the impact on the pressure sensor 15 and improving the detection accuracy.

[0026] Specifically, the base 1 is provided with a support frame 18 for supporting the shell 4, the top of the support frame 18 is provided with a connector 19, the bottom of the shell 4 is provided with a connecting slot 20 adapted to the connector 19, and the shell 4 and the support frame 18 are fixed by fastening screws 21; in this embodiment, the height of the shell 4 is conveniently raised by the detachable support frame 18, and at the same time, a wiring harness can pass through the support frame 18, which not only provides protection for the wiring harness, but also facilitates the connection to the computer display 8.

[0027] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0028] Working principle: When in use, the threaded steel round bar is conveyed by the conveying wheel 3, during which the round bar will pass through the detection circular hole 5, and then the ball 6 will be squeezed on the surface of the threaded steel round bar. When the round bar is conveyed, the ball 6 is in rolling point contact with it and will not interfere with its conveying. Since the ball 6 can only slide along the positioning groove 13, the ball 6 will be displaced to a corresponding extent according to the size of the round bar. After the ball 6 is displaced, the extrusion spring 14 will be deformed. Since the deformation of the extrusion spring 14 will change the pressure on the pressure sensor 15, the pressure sensor 15 sends the changed pressure signal to the calculation display 8, and the calculation display 8 can calculate the displacement of the ball 6, thereby combining the displacement of multiple balls 6 to detect the size of the threaded steel bar.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision threaded steel bar size detection device, comprising a base (1), It is characterized in that The base (1) is provided with two front and rear conveying frames (2), the conveying frames (2) are provided with conveying wheels (3), and a size detection mechanism is provided between the front and rear conveying frames (2); the size detection mechanism comprises a shell (4), a detection circular hole (5) is provided in the shell (4), and a circle of balls (6) is arranged around the detection circular hole (5), and the balls (6) are partially exposed from the detection circular hole (5); a detection mechanism (7) for detecting the displacement of the balls (6) is arranged in the shell (4), and the detection mechanism (7) is connected to a calculation display (8) installed on the base (1).

2. A high-precision threaded steel bar size detection device according to claim 1, It is characterized in that The shell (4) comprises a first shell (9) and a second shell (10) which are arranged opposite to each other. The edges of the first shell (9) and the second shell (10) are provided with corresponding screw holes (11) and are fixed by screws (12).

3. A high-precision threaded steel bar size detection device according to claim 1, It is characterized in that The detection mechanism (7) further comprises a positioning groove (13), a compression spring (14) and a pressure sensor (15); the ball (6) can only slide along the positioning groove (13); the compression spring (14) is also arranged in the positioning groove (13); the housing (4) is fixed with the pressure sensor (15) in contact with the compression spring (14); the pressure sensor (15) connects the wiring harness to the computer display (8) via a wiring groove (16).

4. A high-precision threaded steel bar size detection device according to claim 3, It is characterized in that The positioning groove (13) is provided with a ventilation groove (17) penetrating the outside.

5. A high-precision threaded steel bar size detection device according to claim 1, It is characterized in that The base (1) is provided with a support frame (18) for supporting the shell (4); a connecting head (19) is provided at the top end of the support frame (18); a connecting slot (20) adapted to the connecting head (19) is provided at the bottom end of the shell (4); the shell (4) and the support frame (18) are fixed by means of fastening screws (21).

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