Fixing device for hardness detection of circular seamless steel pipe

Abstract

The utility model belongs to the technical field of circular tube detection, and particularly relates to a circular seamless steel tube hardness detection fixing device which comprises a bottom plate, and the upper surface of the bottom plate is fixedly connected with four lower clamping seats which are uniformly distributed. When the steel pipe detection device is used, a steel pipe is placed on the upper surface of the lower clamping seat, the two inclined surfaces of the lower clamping seat are tangent to the steel pipe, the electric push rod is started to push the detection plate and drive the upper clamping seat and the pressing plate to move downwards, the upper clamping seat is attached to the two sides of the steel pipe firstly, the detection plate continues to move to enable the pressing plate to press the middle of the steel pipe, and the detection plate slides downwards along the sliding rod; when the spring is pushed to compress, the spring can enable the upper clamping seat and the lower clamping seat to clamp the steel pipe, continuous movement of the detection plate is not affected, the pressing plate performs pressure testing on the hardness of the steel pipe, numerical values are detected through the pressure sensor, manual fixing is not needed, safety is improved, the fixing effect is good, and the detection effect of the steel pipe is not prone to being affected. And hardness detection of the seamless steel tube is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of round tube detection, in particular to a round seamless steel tube hardness detection and fixing device. Background Art

[0002] Steel pipes have hollow cross-sections, and their length is much larger than their diameter or circumference. Seamless steel pipes are divided into hot-rolled and cold-rolled (drawn) steel pipes, and welded steel pipes are divided into straight-seam welded steel pipes and spiral-seam welded steel pipes. After the production of steel pipes, samples need to be taken for hardness testing to determine the quality of the steel pipes, so a hardness testing device for steel pipes is needed;

[0003] Some existing detection devices are fixed by manual pressing, which has poor safety performance, affects the detection effect of steel pipes, and is not convenient for hardness detection of steel pipes. Therefore, a circular seamless steel pipe hardness detection and fixing device is proposed. Utility Model Content

[0004] The utility model aims to provide a circular seamless steel pipe hardness detection and fixing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a circular seamless steel pipe hardness testing and fixing device comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a uniformly distributed lower clamping seat, the number of the lower clamping seats is four, the upper surface of the bottom plate is fixedly connected with a uniformly distributed support column, the upper end of the support column is fixedly connected with a top plate, the lower side of the top plate is provided with a pair of upper clamping seats, an electric push rod is installed on the upper surface of the top plate, the output end of the electric push rod passes through the upper surface of the top plate and is fixedly connected with a detection plate, the inner side wall of the detection plate is slidably connected with a pair of sliding rods, the lower end of the sliding rod is fixedly connected to the upper surface of the upper clamping seat, the upper end of the sliding rod is fixedly connected to a limiting block, a spring is fixedly connected between the upper surface of the upper clamping seat and the lower surface of the detection plate, a pressure sensor is provided on the lower side of the detection plate, a rubber ring is bonded to the outer wall of the pressure sensor, and a pressure plate is fixedly connected to the lower surface of the pressure sensor.

[0006] As a further preferred embodiment of the technical solution: arc-shaped grooves are formed on the front and rear surfaces of the upper clamp seat, and the inner side walls of the arc-shaped grooves are slidably connected to the outer side walls of the support columns.

[0007] As a further preferred embodiment of the technical solution: a connection block is fixedly connected to the lower surface of the detection plate, and the pressure sensor is installed on the lower surface of the connection block.

[0008] As a further preferred embodiment of the technical solution: a rubber pad is bonded between the upper surface of the lower clamping seat and the lower surface of the upper clamping seat.

[0009] As a further preferred embodiment of the present technical solution: evenly distributed supporting legs are fixedly connected to the lower surface of the base plate.

[0010] As a further preferred embodiment of the technical solution: the inner side wall of the bottom plate is threadedly connected with a screw rod, and the upper end of the screw rod is rotatably connected with a support plate.

[0011] As a further preferred embodiment of the technical solution: the inner side wall of the bottom plate is slidably connected with a guide rod, and the upper end of the guide rod is fixedly connected to the lower surface of the support plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] When the utility model is used, the steel pipe is placed on the upper surface of the lower clamp seat, the two inclined surfaces of the lower clamp seat are tangent to the steel pipe, the electric push rod is started to push the detection plate, and the upper clamp seat and the pressure plate are driven to move downward, the upper clamp seat is first fitted with both sides of the steel pipe, and the detection plate continues to move to make the pressure plate press the middle part of the steel pipe, at this time the detection plate slides downward along the slide bar, pushing the spring to compress, the spring can make the upper clamp seat and the lower clamp seat clamp the steel pipe without affecting the continued movement of the detection plate, so that the pressure plate performs a pressure test on the hardness of the steel pipe, and the value is detected by the pressure sensor, without manual fixation, thus improving safety, and the fixing effect is better, it is not easy to affect the detection effect of the steel pipe, and it is convenient for the hardness detection of the seamless steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the screw rod, the support plate and the guide rod in the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the slide bar, the limit block and the spring in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the arc groove and rubber pad in the utility model.

[0018] In the figure: 1. bottom plate; 2. lower clamping seat; 3. support column; 4. top plate; 5. upper clamping seat; 6. electric push rod; 7. detection plate; 8. sliding rod; 9. limit block; 10. spring; 11. pressure sensor; 12. rubber ring; 13. pressure plate; 14. arc groove; 15. connecting block; 16. rubber pad; 17. support leg; 18. screw; 19. support plate; 20. guide rod. DETAILED DESCRIPTION

[0019] 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. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limitations on the present application. 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 making creative work are within the scope of protection of the utility model.

[0020] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0021] See also Figure 1-4The utility model provides a technical solution: a circular seamless steel pipe hardness detection and fixing device, comprising a bottom plate 1, the upper surface of the bottom plate 1 is fixedly connected with evenly distributed lower clamping seats 2, the number of the lower clamping seats 2 is four, the upper surface of the bottom plate 1 is fixedly connected with evenly distributed support columns 3, the upper ends of the support columns 3 are fixedly connected with a top plate 4, a pair of upper clamping seats 5 are arranged on the lower side of the top plate 4, an electric push rod 6 is installed on the upper surface of the top plate 4, the output end of the electric push rod 6 passes through the upper surface of the top plate 4 and is fixedly connected with a detection plate 7, a pair of sliding rods 8 are slidably connected to the inner side wall of the detection plate 7, the lower end of the sliding rod 8 is fixedly connected to the upper surface of the upper clamping seat 5, the upper end of the sliding rod 8 is fixedly connected to a limiting block 9, a spring 10 is fixedly connected between the upper surface of the upper clamping seat 5 and the lower surface of the detection plate 7, a pressure sensor 11 is arranged on the lower side of the detection plate 7, and the outer side wall of the pressure sensor 11 is bonded with The rubber ring 12 and the lower surface of the pressure sensor 11 are fixedly connected with a pressure plate 13; when in use, the steel pipe is placed on the upper surface of the lower clamp seat 2, and the two inclined surfaces of the lower clamp seat 2 are tangent to the steel pipe. The electric push rod 6 is started to push the detection plate 7, driving the upper clamp seat 5 and the pressure plate 13 to move downward, and the upper clamp seat 5 first fits the two sides of the steel pipe, and the detection plate 7 continues to move to make the pressure plate 13 press the middle part of the steel pipe. At this time, the detection plate 7 slides downward along the slide bar 8, pushing the spring 10 to compress. The spring 10 can make the upper clamp seat 5 and the lower clamp seat 2 clamp the steel pipe without affecting the continued movement of the detection plate 7, so that the pressure plate 13 performs a pressure test on the hardness of the steel pipe, and the value is detected by the pressure sensor 11, forming a circular seamless steel pipe hardness detection and fixing device, which does not require manual fixing, improves safety, and has a better fixing effect, is not easy to affect the detection effect of the steel pipe, and is convenient for hardness detection of seamless steel pipes.

[0022] In this embodiment, specifically: arc grooves 14 are provided on the front and rear surfaces of the upper clamp seat 5, and the inner wall of the arc groove 14 is slidably connected to the outer wall of the support column 3; when the detection plate 7 drives the upper clamp seat 5 to move, the two arc grooves 14 of the upper clamp seat 5 slide along the outer wall of the support column 3, which has a positioning effect and improves the stability of the movement of the upper clamp seat 5.

[0023] In this embodiment, specifically: a connecting block 15 is fixedly connected to the lower surface of the detection plate 7, and the pressure sensor 11 is installed on the lower surface of the connecting block 15; the pressure sensor 11 is installed at a suitable height through the connecting block 15, so as to facilitate the detection of the middle part of the steel pipe after the upper clamping seat 5 clamps the steel pipe.

[0024] In this embodiment, specifically: a rubber pad 16 is bonded between the upper surface of the lower clamping seat 2 and the lower surface of the upper clamping seat 5; the rubber pad 16 can reduce scratches on the surface of the steel pipe, improve friction, and reduce slipping.

[0025] In this embodiment, specifically: evenly distributed supporting legs 17 are fixedly connected to the lower surface of the bottom plate 1 ; the supporting legs 17 are used to support and fix the bottom plate 1 .

[0026] In this embodiment, specifically: the inner wall of the bottom plate 1 is threadedly connected with a screw rod 18, and the upper end of the screw rod 18 is rotatably connected with a support plate 19; the height of the support plate 19 is adjusted by twisting the screw rod 18, and the support plate 19 can support the middle part of the steel pipe.

[0027] In this embodiment, specifically: the inner wall of the bottom plate 1 is slidably connected with a guide rod 20, and the upper end of the guide rod 20 is fixedly connected to the lower surface of the support plate 19; the guide rod 20 can prevent the screw rod 18 from rotating and drive the support plate 19 to deviate.

[0028] The working principle of the utility model is as follows: when in use, the steel pipe is placed on the upper surface of the lower clamp seat 2, the two inclined surfaces of the lower clamp seat 2 are tangent to the steel pipe, the height of the support plate 19 is adjusted by screwing the screw 18, the electric push rod 6 is started to push the detection plate 7, and the upper clamp seat 5 and the pressure plate 13 are driven to move downward, and the two arc grooves 14 of the upper clamp seat 5 slide along the outer wall of the support column 3, which has a positioning effect and improves the stability of the movement of the upper clamp seat 5. The upper clamp seat 5 first fits the two sides of the steel pipe, and the detection plate 7 continues to move to make the pressure plate 13 press the middle part of the steel pipe. At this time, the detection plate 7 slides downward along the slide rod 8, pushing the spring 10 to compress, and the spring 10 can When the upper clamping seat 5 and the lower clamping seat 2 are able to clamp the steel pipe, the detection plate 7 will not be affected to continue to move, so that the pressure plate 13 can perform a pressure test on the hardness of the steel pipe, and the value is detected by the pressure sensor 11. After the detection, the electric push rod 6 drives the detection plate 7 to rise, and the pressure plate 13 first separates from the middle surface of the steel pipe, and the spring 10 stretches. After the detection plate 7 is fitted with the anti-slip plate 9, it drives the upper clamping block 5 to rise, so that the steel pipe is released from the fixation, forming a circular seamless steel pipe hardness detection and fixing device, which does not require manual fixing, improves safety, and has a better fixing effect. It is not easy to affect the detection effect of the steel pipe, which is convenient for the hardness detection of the seamless steel pipe.

[0029] Although the 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 circular seamless steel pipe hardness detection fixture, comprising a bottom plate (1), characterized in that: The upper surface of the bottom plate (1) is fixedly connected with evenly distributed lower clamping seats (2), the number of the lower clamping seats (2) is four, the upper surface of the bottom plate (1) is fixedly connected with evenly distributed support columns (3), the upper ends of the support columns (3) are fixedly connected with a top plate (4), a pair of upper clamping seats (5) are provided on the lower side of the top plate (4), an electric push rod (6) is installed on the upper surface of the top plate (4), the output end of the electric push rod (6) passes through the upper surface of the top plate (4) and is fixedly connected with a detection plate (7), the detection plate (7 ) is slidably connected to the inner wall of the upper clamp seat (5), the lower end of the slide rod (8) is fixedly connected to the upper surface of the upper clamp seat (5), the upper end of the slide rod (8) is fixedly connected to a limiting block (9), a spring (10) is fixedly connected between the upper surface of the upper clamp seat (5) and the lower surface of the detection plate (7), a pressure sensor (11) is provided on the lower side of the detection plate (7), a rubber ring (12) is bonded to the outer wall of the pressure sensor (11), and a pressure plate (13) is fixedly connected to the lower surface of the pressure sensor (11).

2. A circular seamless steel pipe hardness detection and fixing device according to claim 1, characterized in that: The front and rear surfaces of the upper clamp seat (5) are both provided with arc-shaped grooves (14), and the inner side wall of the arc-shaped groove (14) is slidably connected to the outer side wall of the support column (3).

3. A circular seamless steel pipe hardness detection and fixing device according to claim 1, characterized in that: A connection block (15) is fixedly connected to the lower surface of the detection plate (7), and the pressure sensor (11) is mounted on the lower surface of the connection block (15).

4. A circular seamless steel pipe hardness detection and fixing device according to claim 1, characterized in that: A rubber pad (16) is bonded between the upper surface of the lower clamping seat (2) and the lower surface of the upper clamping seat (5).

5. A circular seamless steel pipe hardness detection and fixing device according to claim 1, characterized in that: The lower surface of the base plate (1) is fixedly connected with evenly distributed support legs (17).

6. A circular seamless steel pipe hardness detection and fixing device according to claim 1, characterized in that: The inner side wall of the bottom plate (1) is threadedly connected with a screw rod (18), and the upper end of the screw rod (18) is rotatably connected with a support plate (19).

7. A round seamless steel pipe hardness detection and fixing device according to claim 6, characterized in that: The inner side wall of the bottom plate (1) is slidably connected to a guide rod (20), and the upper end of the guide rod (20) is fixedly connected to the lower surface of the support plate (19).

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