Size detection device for alloy steel pipe

Abstract

The utility model discloses a size detection device for an alloy steel pipe, which comprises a mounting seat, the left side surface of the mounting seat is connected with two outer diameter distance measuring blocks in an up-and-down sliding manner, and the left side surface of each outer diameter distance measuring block is provided with an outer diameter pressing plate; an inner cavity is formed in the mounting base, two inner diameter distance measuring blocks are connected into the right side face of the inner cavity in a front-back sliding mode, inner diameter pressing wheels are installed on the left side faces of the inner diameter distance measuring blocks, and the inner diameter pressing wheels are located on the left side of the mounting base; the device is used for detecting the size of the inner diameter and the outer diameter of the steel pipe, and the device is a handheld device, so that the universality is improved; the internal and external diameters of the steel pipe can be detected without contacting the end face of the steel pipe, so that the detection precision is improved, and the detection result is prevented from being influenced by burrs on the end face of the steel pipe; the first pressure sensor and the second pressure sensor are arranged to prevent the inner diameter pressing wheel and the outer diameter pressing plate from being bent and fractured due to overlarge force applied to the inner diameter pressing wheel and the outer diameter pressing plate.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe quality inspection, in particular to a size detection device for alloy steel pipes. Background Art

[0002] After the production of steel pipes is completed, the size needs to be measured. The existing method of measuring the size of steel pipes is generally for workers to measure manually using a ruler. However, this measurement method can only be used for smaller steel pipes. For the size measurement of large-diameter steel rods, workers are required to measure with a tape measure.

[0003] However, the accuracy of the above two measurement methods is too dependent on the work experience of the staff, and the above two measurement methods are generally performed at the end face of the steel pipe. If the end face of the steel pipe is an inclined surface when it is cut, the measurement result will cause a large error. In addition, the burrs on the end face of the steel pipe may also scratch the hands of the staff. Therefore, it is necessary to improve the measurement method of the steel pipe size. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a size detection device for an alloy steel pipe, which is used to solve the problems of poor accuracy and large errors in the existing steel pipe size measurement solutions.

[0005] The utility model provides the following technical solutions: a size detection device for an alloy steel pipe, comprising a mounting seat, wherein two outer diameter measuring blocks are slidably connected to the left side of the mounting seat, and an outer diameter pressing plate is installed on the left side of the outer diameter measuring block; an inner cavity is provided in the mounting seat, and two inner diameter measuring blocks are slidably connected to the right side of the inner cavity, and an inner diameter pressing wheel is installed on the left side of the inner diameter measuring block, and the inner diameter pressing wheel is located on the left side of the mounting seat;

[0006] A driving mechanism for controlling the outer diameter distance measuring block and the inner diameter distance measuring block to move toward each other is arranged in the mounting seat.

[0007] Preferably, the outer diameter pressing plate is hinged to the left side of the outer diameter ranging block, and a No. 1 oblique rod is obliquely arranged on the sides of the two outer diameter pressing plates away from each other, and a No. 1 pressure sensor that can be pressed by the No. 1 oblique rod is installed on the outer diameter ranging block;

[0008] A connecting shaft is hinged on the left side of the inner diameter measuring block, and the inner diameter pressure wheel is installed on the left end of the connecting shaft, that is, the inner diameter pressure wheel is installed on the inner diameter measuring block through the connecting shaft, and a second inclined rod is arranged on the side surfaces of the two connecting shafts close to each other, and a second pressure sensor that can be squeezed by the second inclined rod is arranged on the inner diameter measuring block.

[0009] Preferably, the outer diameter distance measuring block and the inner diameter distance measuring block are respectively provided with limit plates for limiting the outer diameter pressure plate and the connecting shaft, so that the outer diameter pressure plate and the inner diameter pressure wheel can only swing within a certain angle.

[0010] Preferably, the driving mechanism includes a No. 1 threaded shaft installed on the left side of the mounting seat, and a No. 2 threaded shaft is installed in the inner cavity, and the No. 1 threaded shaft and the No. 2 threaded shaft are both processed with two threads of opposite rotation directions, the two threads on the No. 1 threaded shaft are respectively connected to the two outer diameter measuring blocks, and the two threads on the No. 2 threaded shaft are respectively connected to the two inner diameter measuring blocks, and the mounting seat is provided with two motors for driving the No. 1 threaded shaft and the No. 2 threaded shaft to rotate.

[0011] Preferably, there is a step in the side surfaces of the two outer diameter pressure plates that are close to each other, and the minimum distance between the two connecting shafts is greater than the minimum distance between the two inner diameter pressure wheels.

[0012] Preferably, a handle is provided on the upper side of the mounting seat.

[0013] The utility model provides a size detection device for alloy steel pipes, which has the following beneficial effects:

[0014] The utility model is used for measuring the inner diameter and outer diameter of a steel pipe, and the utility model is a handheld device, which improves versatility;

[0015] The utility model can detect the inner and outer diameters of the steel pipe without contacting the end face of the steel pipe, thereby improving the detection accuracy and avoiding the detection result being affected by burrs on the end face of the steel pipe;

[0016] The utility model prevents the inner diameter pressing wheel and the outer diameter pressing plate from being bent and broken due to excessive force by arranging the first pressure sensor and the second pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a main schematic diagram of the utility model;

[0018] Figure 2 It is a left side schematic diagram of the utility model;

[0019] Figure 3 yes Figure 1 The enlarged schematic diagram of point A in the middle;

[0020] Figure 4 yes Figure 2 A magnified schematic diagram of point B in the middle.

[0021] In the figure:

[0022] 11. Mounting seat; 12. Outer diameter distance measuring block; 13. Outer diameter pressure plate; 14. Inner cavity; 15. Inner diameter distance measuring block; 16. Inner diameter pressure wheel; 17. No. 1 inclined rod; 18. Connecting shaft; 19. No. 2 inclined rod; 20. No. 1 threaded shaft; 21. No. 2 threaded shaft; 22. Handle; 31. No. 1 pressure sensor; 32. No. 2 pressure sensor. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Reference Figure 1-Figure 4According to an embodiment of the size detection device of an alloy steel pipe of the utility model, the device comprises a mounting seat 11, two outer diameter measuring blocks 12 are slidably connected to the left side of the mounting seat 11, an outer diameter pressing plate 13 is installed on the left side of the outer diameter measuring block 12, an inner cavity 14 is provided in the mounting seat 11, two inner diameter measuring blocks 15 are slidably connected to the right side of the inner cavity 14, an inner diameter pressing wheel 16 is installed on the left side of the inner diameter measuring block 15, and the inner diameter pressing wheel 16 extends leftward to the mounting seat 11. On the left side, when inspecting the inner and outer diameters of the steel pipe, the staff places the inner diameter pressing wheel 16 inside the steel pipe and places the outer diameter pressing plate 13 outside the steel pipe. When the outer diameter pressing plate 13 and the inner diameter pressing wheel 16 are both in contact with the steel pipe, the maximum distance between the two inner diameter pressing wheels 16 is the inner diameter of the steel pipe, and the minimum distance between the two outer diameter pressing plates 13 is the outer diameter of the steel pipe. A driving mechanism for controlling the outer diameter measuring block 12 and the inner diameter measuring block 15 to move toward each other is provided in the mounting seat 11.

[0028] In this embodiment, the driving mechanism includes a No. 1 threaded shaft 20 installed on the left side of the mounting seat 11, and a No. 2 threaded shaft 21 is installed in the inner cavity 14, and the No. 1 threaded shaft 20 and the No. 2 threaded shaft 21 are both processed with two threads of opposite rotation directions, the two threads on the No. 1 threaded shaft 20 are respectively connected to the two outer diameter measuring blocks 12, and the two threads on the No. 2 threaded shaft 21 are respectively connected to the two inner diameter measuring blocks 15, and the mounting seat 11 is provided with two motors for driving the No. 1 threaded shaft 20 and the No. 2 threaded shaft 21 to rotate, that is, when the motor drives the No. 1 threaded shaft 20 to rotate, the two outer diameter pressure plates 13 will move up and down and move toward each other, and when the motor drives the No. 2 threaded shaft 21 to rotate, the two inner diameter pressure wheels 16 will move toward each other.

[0029] In addition, in order to realize the emergency stop of the outer diameter pressing plate 13 and the inner diameter pressing wheel 16 and avoid the bending and fracture of the outer diameter pressing plate 13 and the inner diameter pressing wheel 16 caused by the continuous movement of the No. 1 threaded shaft 20 and the No. 2 threaded shaft 21 when attached to the steel pipe, the outer diameter pressing plate 13 is hinged to the left side of the outer diameter distance measuring block 12, and a No. 1 oblique rod 17 is obliquely arranged on the sides of the two outer diameter pressing plates 13 away from each other, and a No. 1 pressure sensor 31 that can be pressed by the No. 1 oblique rod 17 is installed on the outer diameter distance measuring block 12;

[0030] A connecting shaft 18 is hinged on the left side of the inner diameter measuring block 15, and the inner diameter pressure wheel 16 is rotatably connected to the left end of the connecting shaft 18, that is, the inner diameter pressure wheel 16 is installed on the inner diameter measuring block 15 through the connecting shaft 18, and a second inclined rod 19 is arranged on the side where the two connecting shafts 18 are close to each other, and a second pressure sensor 32 that can be squeezed by the second inclined rod 19 is arranged on the inner diameter measuring block 15.

[0031] Through the above design, when the inner diameter pressure wheel 16 moves away from each other and sticks to the inner wall of the steel pipe, the No. 2 inclined rod 19 will transfer the pressure to the No. 2 pressure sensor 32. At this time, the No. 2 pressure sensor 32 can control the motor connected to the No. 2 threaded shaft 21 to cut off the power. When the two outer diameter pressure plates 13 move away from each other and the outer diameter pressure plates 13 stick to the outer wall of the steel pipe, the No. 1 inclined rod 17 will transfer the pressure to the No. 1 pressure sensor 31. At this time, the No. 1 pressure sensor can cut off the power of the motor connected to the No. 1 threaded shaft 20. The setting of the No. 1 pressure sensor 31 and the No. 2 pressure sensor 32 prevents the inner diameter pressure wheel 16 and the outer diameter pressure plate 13 from being subjected to excessive force, resulting in bending and breaking, and increases the measurement accuracy.

[0032] In addition, the outer diameter distance measuring block 12 and the inner diameter distance measuring block 15 are respectively provided with limit plates for limiting the outer diameter pressure plate 13 and the connecting shaft 18, so that the outer diameter pressure plate 13 and the inner diameter pressure wheel 16 can only swing within a certain angle.

[0033] In addition, in order to avoid the burrs that may exist on the end surface of the steel pipe affecting the measurement accuracy, there are steps on the sides where the two outer diameter pressure plates 13 are close to each other, and the minimum distance between the two connecting shafts 18 is greater than the minimum distance between the two inner diameter pressure wheels 16, that is, the outer diameter pressure plate 13 and the inner diameter pressure wheel 16 are not attached to the end surface of the steel pipe to measure the inner and outer diameters of the steel pipe.

[0034] In order to improve portability, a handle 22 is provided on the upper side of the mounting base 11 , and a battery for powering the motor is provided inside the mounting base 11 .

[0035] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A size detection device for an alloy steel pipe, comprising a mounting seat (11), characterized in that: The left side surface of the mounting seat (11) is slidably connected to two outer diameter distance measuring blocks (12) in an upward and downward manner, and the left side surface of the outer diameter distance measuring block (12) is provided with an outer diameter pressure plate (13); the mounting seat (11) is provided with an inner cavity (14), and the right side surface of the inner cavity (14) is slidably connected to two inner diameter distance measuring blocks (15) in a forward and backward manner, and the left side surface of the inner diameter distance measuring block (15) is provided with an inner diameter pressure wheel (16), and the inner diameter pressure wheel (16) is located on the left side of the mounting seat (11); A driving mechanism for controlling the outer diameter distance measuring block (12) and the inner diameter distance measuring block (15) to move toward each other is provided in the mounting seat (11).

2. The size detection device of an alloy steel pipe according to claim 1, characterized in that: The outer diameter pressing plate (13) is hinged to the left side of the outer diameter distance measuring block (12), and a first oblique rod (17) is obliquely arranged on the side surfaces of the two outer diameter pressing plates (13) that are away from each other, and a first pressure sensor (31) that can be pressed by the first oblique rod (17) is installed on the outer diameter distance measuring block (12); A connecting shaft (18) is hingedly connected to the left side of the inner diameter distance measuring block (15), and the inner diameter pressure wheel (16) is mounted on the left end of the connecting shaft (18), that is, the inner diameter pressure wheel (16) is mounted on the inner diameter distance measuring block (15) through the connecting shaft (18), and a second inclined rod (19) is arranged on the side surfaces of the two connecting shafts (18) close to each other, and a second pressure sensor (32) capable of being squeezed by the second inclined rod (19) is arranged on the inner diameter distance measuring block (15).

3. The size detection device of an alloy steel pipe according to claim 2, characterized in that: The outer diameter distance measuring block (12) and the inner diameter distance measuring block (15) are respectively provided with limit plates for limiting the outer diameter pressure plate (13) and the connecting shaft (18), so that the outer diameter pressure plate (13) and the inner diameter pressure wheel (16) can only swing within a certain angle.

4. The size detection device of an alloy steel pipe according to claim 1, characterized in that: The driving mechanism comprises a No. 1 threaded shaft (20) mounted on the left side of the mounting seat (11), and a No. 2 threaded shaft (21) is mounted in the inner cavity (14), the No. 1 threaded shaft (20) and the No. 2 threaded shaft (21) are both processed with two threads of opposite rotation directions, the two threads on the No. 1 threaded shaft (20) are respectively connected to the two outer diameter distance measuring blocks (12), and the two threads on the No. 2 threaded shaft (21) are respectively connected to the two inner diameter distance measuring blocks (15), and the mounting seat (11) is provided with two motors for driving the No. 1 threaded shaft (20) and the No. 2 threaded shaft (21) to rotate.

5. The size detection device of an alloy steel pipe according to claim 2, characterized in that: There is a step in the side surfaces of the two outer diameter pressing plates (13) that are close to each other, and the minimum distance between the two connecting shafts (18) is greater than the minimum distance between the two inner diameter pressing wheels (16).

6. The size detection device of an alloy steel pipe according to claim 1, characterized in that: A handle (22) is provided on the upper side of the mounting seat (11).

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