A pipe wall thickness detection device based on hall effect

Abstract

The utility model discloses a pipe fitting wall thickness detection device based on hall effect, including the pipe fitting positioning support for the positioning pipe fitting, the pipe fitting of waiting to measure is positioned on the pipe fitting positioning support, is equipped with the wall thickness measuring mechanism corresponding with pipe fitting on the pipe fitting positioning support, and the wall thickness measuring mechanism includes the measurement slide that slides on the pipe fitting positioning support, is equipped with the elastic telescopic component on the measurement slide, is equipped with hall induction probe on the free end of elastic telescopic component, is provided with the steel ball that cooperates with hall induction probe in the pipe fitting. The utility model sets up hall induction probe on the measurement slide, after the pipe fitting of waiting to measure is positioned on the pipe fitting positioning support, through the cooperation of hall induction probe and steel ball inside and outside, based on hall induction effect, utilizes the magnetic value size between hall induction probe measuring point and steel ball, and the distance between probe and steel ball is converted, thereby indirectly measures the wall thickness value of pipe fitting.

Description

Technical Field

[0001] This utility model relates to the technical field of wall thickness measurement devices, specifically to a pipe wall thickness detection device based on the Hall effect. Background Technology

[0002] There are two traditional methods for measuring the wall thickness of the straight section in the middle of tie rod products: 1. Destructive testing: One tie rod is randomly selected from each batch, and a cut is made at a random point in its straight section. A micrometer is then used to measure the wall thickness at multiple points near the cut point. The result of this cut is used to represent the entire batch. This method has several problems: 1) increased processing costs; 2) limited measurement area; 3) inability to ensure that the wall thickness of each product is within the specified range; 4) significant uncontrollable factors. 2. Ultrasonic thickness gauges: Because the straight section of the tie rod is cylindrical, and ultrasonic probes are flat probes suitable for planar measurements, the smaller the outer diameter, the greater the curvature at the measurement point, the less signal the probe can receive, and the greater the data fluctuation, resulting in more discrete and less reliable measurements. Therefore, data measured using ultrasonic thickness gauges is discrete, unreliable, and has low repeatability. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a pipe wall thickness detection device based on the Hall effect. By utilizing the internal and external cooperation of the Hall sensor probe and the steel ball, the wall thickness of the pipe to be tested can be measured conveniently and accurately.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] A pipe wall thickness detection device based on the Hall effect includes a pipe positioning bracket for positioning the pipe, the pipe to be measured is positioned on the pipe positioning bracket, and a wall thickness measuring mechanism corresponding to the pipe is provided on the pipe positioning bracket. The wall thickness measuring mechanism includes a measuring slide seat slidably mounted on the pipe positioning bracket, an elastic telescopic component is provided on the measuring slide seat, a Hall sensor probe is provided on the free end of the elastic telescopic component, and a steel ball that cooperates with the Hall sensor probe is provided inside the pipe.

[0006] Furthermore, the pipe positioning bracket includes a linear guide rail and a left slider and a right slider that slide on the linear guide rail. A left positioning component and a right positioning component are respectively connected to the left slider and the right slider. The two ends of the pipe are respectively positioned on the left positioning component and the right positioning component. The wall thickness measuring mechanism is located between the left positioning component and the right positioning component. The Hall sensor probe elastically abuts against the outer wall of the pipe through an elastic telescopic component. The steel ball is located inside the pipe. The Hall sensor probe generates a magnetic effect on the steel ball through magnetic force.

[0007] Furthermore, both the left and right positioning components are equipped with rolling bearing assemblies, with the end of the tube placed centrally within the rolling bearing assemblies, allowing the tube to rotate and roll.

[0008] Furthermore, the linear guide rail is equipped with a left cylinder and a right cylinder, which are respectively connected to the left and right ends of the measuring slide to drive the measuring slide to slide left and right on the linear guide rail.

[0009] Furthermore, the fittings are thin-walled tie rod structures made of non-magnetic material.

[0010] Furthermore, the elastic telescopic assembly includes a spring spindle fixedly connected to the measuring slide, a spring sleeved on the spring spindle, and a probe fixing sleeve connected to the end of the spring, with the Hall sensor probe fixedly connected to the probe fixing sleeve.

[0011] The above technical solution has the following advantages or beneficial effects:

[0012] In the Hall effect-based pipe wall thickness detection device of this utility model, a Hall induction probe is set on the measuring slide. After the pipe to be measured is positioned on the pipe positioning bracket, the Hall induction probe and the steel ball cooperate internally and externally. Based on the Hall induction effect, the distance between the probe and the steel ball is calculated by using the magnetic value between the measuring point of the Hall induction probe and the steel ball, thereby indirectly measuring the wall thickness of the pipe. Furthermore, the measuring slide is elastically abutted against the outer wall of the pipe, making the detection device also suitable for measuring the wall thickness of tapered pipes. The measuring slide can also move laterally relative to the pipe positioning bracket, thus enabling multi-point measurement of the pipe. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0014] Label Explanation:

[0015] 1. Pipe positioning bracket; 2. Pipe; 3. Wall thickness measuring mechanism; 4. Left cylinder; 5. Right cylinder; 11. Linear guide rail; 12. Left slider; 13. Right slider; 14. Left positioning component; 15. Right positioning component; 31. Measuring slide; 32. Elastic telescopic component; 33. Inductive probe; 34. Steel ball; 321. Spring spindle; 322. Spring; 323. Probe fixing sleeve. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] Please refer to the appendix. Figure 1 One embodiment of this utility model provides a pipe wall thickness detection device based on the Hall effect, including a pipe positioning bracket 1 for positioning the pipe, a pipe 2 to be measured positioned on the pipe positioning bracket 1, a wall thickness measuring mechanism 3 corresponding to the pipe 2 provided on the pipe positioning bracket 1, the wall thickness measuring mechanism 3 including a measuring slide 31 slidably mounted on the pipe positioning bracket 1, an elastic telescopic component 32 provided on the measuring slide 31, a Hall sensor probe 33 provided on the free end of the elastic telescopic component 32, and a steel ball 34 cooperating with the Hall sensor probe 33 provided inside the pipe 2. It is understood that in this embodiment, a Hall effect sensor 33 is provided on the measuring slide 31. After the pipe fitting 2 to be measured is positioned on the pipe fitting positioning bracket 1, the Hall effect sensor 33 and the steel ball 34 cooperate internally and externally. Based on the Hall effect, the distance between the sensor and the steel ball is calculated by using the magnetic value between the measuring point of the Hall effect sensor 33 and the steel ball 34, thereby indirectly measuring the wall thickness of the pipe fitting. Furthermore, the measuring slide 31 is elastically abutted against the outer wall of the pipe fitting 2, making the detection device also suitable for measuring the wall thickness of tapered pipe fittings. The measuring slide 31 can also move laterally relative to the pipe fitting positioning bracket 1, thereby enabling multi-point measurement of the pipe fitting 2.

[0019] Please refer to the appendix. Figure 1 In one preferred embodiment, the pipe positioning bracket 1 includes a linear guide rail 11 and a left slider 12 and a right slider 13 slidably mounted on the linear guide rail 11. A left positioning member 14 and a right positioning member 15 are respectively connected to the left slider 12 and the right slider 13. The two ends of the pipe 2 are respectively positioned on the left positioning member 14 and the right positioning member 15. The wall thickness measuring mechanism 3 is located between the left positioning member 14 and the right positioning member 15. The Hall sensor probe 33 elastically abuts against the outer wall of the pipe 2 through the elastic telescopic component 32. The steel ball 34 is located inside the pipe 2. The Hall sensor probe 33 generates a magnetic effect on the steel ball 34 through magnetic force. In this embodiment, since the left slider 12 and the right slider 13 are respectively connected to the left positioning member 14 and the right positioning member 15, and the two ends of the tube 2 are respectively positioned on the left positioning member 14 and the right positioning member 15, for tubes 2 of different lengths, the distance between the two can be adjusted by moving the left slider 12 and / or the right slider 13, thereby positioning tubes 2 of different lengths for wall thickness measurement, effectively improving the adaptability and versatility of the device.

[0020] Please refer to the appendix. Figure 1 In one preferred embodiment, both the left positioning member 14 and the right positioning member 15 are provided with rolling bearing assemblies, and the end of the tube 2 is placed in the rolling bearing assemblies in the center so that the tube 2 can rotate and roll.

[0021] Please refer to the appendix. Figure 1 In one preferred embodiment, a left cylinder 4 and a right cylinder 5 are provided on the linear guide rail 11. The left cylinder 4 and the right cylinder 5 are respectively connected to the left and right ends of the measuring slide 31 to drive the measuring slide 31 to slide left and right on the linear guide rail 11. In this embodiment, the automatic control of the movement of the measuring slide 31 can be achieved through the cooperation of the left cylinder 4 and the right cylinder 5, which is beneficial to improving the efficiency of multi-point detection of the wall thickness of the pipe fitting 2.

[0022] Please refer to the appendix. Figure 1 In one preferred embodiment, the pipe 2 is a thin-walled tie rod structure made of non-magnetic material.

[0023] Please refer to the appendix. Figure 1 In one preferred embodiment, the elastic telescopic component 32 includes a spring spindle 321 fixedly connected to the measuring slide 31, a spring 322 sleeved on the spring spindle 321, and a probe fixing sleeve 323 connected to the end of the spring 322. The Hall sensor probe 33 is fixedly connected to the probe fixing sleeve 323.

[0024] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model. Therefore, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A pipe wall thickness detection device based on the Hall effect, characterized in that: The device includes a pipe positioning bracket (1) for positioning pipe fittings. The pipe fitting (2) to be measured is positioned on the pipe positioning bracket (1). A wall thickness measuring mechanism (3) corresponding to the pipe fitting (2) is provided on the pipe positioning bracket (1). The wall thickness measuring mechanism (3) includes a measuring slide (31) slidably mounted on the pipe positioning bracket (1). An elastic telescopic component (32) is provided on the measuring slide (31). A Hall sensor probe (33) is provided on the free end of the elastic telescopic component (32). A steel ball (34) that cooperates with the Hall sensor probe (33) is provided inside the pipe fitting (2).

2. The pipe wall thickness detection device based on the Hall effect according to claim 1, characterized in that: The pipe positioning bracket (1) includes a linear guide rail (11) and a left slider (12) and a right slider (13) slidably mounted on the linear guide rail (11). The left slider (12) and the right slider (13) are respectively connected to a left positioning component (14) and a right positioning component (15). The two ends of the pipe (2) are respectively positioned on the left positioning component (14) and the right positioning component (15). The wall thickness measuring mechanism (3) is located between the left positioning component (14) and the right positioning component (15). The Hall sensor probe (33) elastically abuts against the outer wall of the pipe (2) through the elastic telescopic component (32). The steel ball (34) is located inside the pipe (2). The Hall sensor probe (33) generates a magnetic effect on the steel ball (34) through magnetic force.

3. The pipe wall thickness detection device based on the Hall effect according to claim 2, characterized in that: Both the left positioning member (14) and the right positioning member (15) are equipped with rolling bearing assemblies. The end of the tube (2) is placed in the rolling bearing assembly in the center so that the tube (2) can rotate and roll.

4. The pipe wall thickness detection device based on the Hall effect according to claim 2, characterized in that: The linear guide (11) is equipped with a left cylinder (4) and a right cylinder (5). The left cylinder (4) and the right cylinder (5) are respectively connected to the left and right ends of the measuring slide (31) to drive the measuring slide (31) to slide left and right on the linear guide (11).

5. The pipe wall thickness detection device based on the Hall effect according to claim 1, characterized in that: The fitting (2) is a thin-walled tie rod structure made of non-magnetic material.

6. The pipe wall thickness detection device based on the Hall effect according to any one of claims 1 to 5, characterized in that: The elastic telescopic assembly (32) includes a spring spindle (321) fixedly connected to the measuring slide (31), a spring (322) sleeved on the spring spindle (321), and a probe fixing sleeve (323) connected to the end of the spring (322). The Hall sensor probe (33) is fixedly connected to the probe fixing sleeve (323).

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