Device for detecting machining tolerance of pipe section

Abstract

The utility model belongs to the technical field of pipeline machining, and particularly relates to a device for detecting the machining tolerance of a pipe section. The utility model provides a device for detecting the machining tolerance of a pipe section, which comprises a base, a sliding seat unit arranged on the base and used for fixing the position of the pipe section, a signal unit arranged on the sliding seat unit and used for transmitting / receiving signals to measure the machining tolerance in the pipe section, and a display screen arranged on the base and in communication connection with the signal unit, therefore, the installation deviation of components in the base meter pipe section of the ultrasonic water meter can be measured, the machining tolerance in the pipe section can be effectively detected, and the accuracy of follow-up pipe section metering is prevented from being influenced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipeline processing technical field especially, it relates to a device for detecting pipe section machining tolerance. BACKGROUND

[0002] The ultrasonic water meter base pipe section is a measuring pipe section specially designed for ultrasonic water meters, which integrates multiple functional components to optimize water flow characteristics and improve measurement accuracy, and is usually composed of the following parts: a pipe body, a reflection unit, a rectifier, a rectification structure, and other auxiliary components, etc. Among them, the pipe body serves as the main structure of the entire base pipe section, used to accommodate and fix other components. The reflection unit is two sets of reflection supports installed oppositely in the pipe body, used to reflect ultrasonic signals so that the ultrasonic sensor can accurately measure the water flow velocity. The reflection sheet is installed at an angle in the support, with space on both sides for liquid to flow through. Therefore, the installation error of the reflection unit will directly affect the metering effect of the water meter pipe section.

[0003] The Chinese utility model patent with patent publication number CN216770524U and publication date of June 17, 2022 discloses a large-diameter pipe shape and position tolerance detection device, which includes a test area, a steel pipe support, a steel pipe, a base, a robot, and an end measurement executor. The end measurement executor includes a measurement execution rear end and a measurement execution front end. The steel pipe is fixed horizontally in the test area by the steel pipe support, and the robot is fixed in the test area by the base. The end of the robot is connected to the end measurement executor, allowing the measurement execution rear end and the measurement execution front end to form a rotating pair of rotating movements.

[0004] The large-diameter pipe shape and position tolerance detection device in the Chinese utility model patent has the following general usage methods and advantages: when in use, adjust the spatial six degrees of freedom of the robot so that the measurement rollers of the end measurement executor are adsorbed on the inner or outer pipe wall of the attached steel pipe, and the axes of the rear pipe and the steel pipe in the length direction are coaxial. Then, start the motor of the robot to make the rear pipe rotate along its length direction axis, and then pull the measurement rollers adsorbed on the inner or outer pipe wall of the attached steel pipe to move one revolution in the planetary gear system. This device has flexible mechanism and is easy to install. It not only has high measurement accuracy and speed, but also can perform real-time data processing and on-site analysis, thereby improving production efficiency and product quality management level, and has good popularization and application prospect.

[0005] However, the large-diameter pipe shape and position tolerance detection device has at least the following deficiencies in actual use, in other words, the technical problems to be solved by the utility model: the measurement device cannot detect the installation deviation between the internal measurement components and the pipe body, and cannot solve the processing problems of the ultrasonic water meter base.

[0006] Therefore, it is urgent to provide a device for detecting internal tolerance of an ultrasonic water meter base pipe section to solve the above problems. Utility model content

[0007] The utility model provides a kind of device for detecting pipe section machining tolerance, including base, be set up on base, for fixed pipe section position sliding seat unit, be set up on sliding seat unit, for emitting / accepting signal to measure pipe section internal machining tolerance signal unit, be set up on base, and with signal unit communication connection display screen, so that:the utility model can measure the installation deviation of ultrasonic water meter base pipe section internal component, effectively detect pipe section internal machining tolerance, avoid affecting subsequent pipe section measurement accuracy.

[0008] The utility model provides a kind of device for detecting pipe section machining tolerance, including base, be set up on base, for fixed pipe section position sliding seat unit, be set up on sliding seat unit, for emitting / accepting signal to measure pipe section internal machining tolerance signal unit, be set up on base, and with signal unit communication connection display screen.

[0009] Further preferred technical solutions are that the sliding seat unit includes a sliding groove provided on the base, a first seat body and a second seat body slidingly connected on the sliding groove, and two support columns provided on the first seat body and the second seat body respectively for limiting the pipe section.

[0010] Further preferred technical solutions are that the signal unit includes two through holes provided at the centers of the two support columns respectively, an emitter provided on the first seat body and located in the through hole, and a receiver provided on the second seat body and located in the through hole.

[0011] Further preferred technical solutions are that the sliding seat unit further includes an extension plate provided on the side end of the support column close to the first seat body or the second seat body, and a connecting piece provided on the extension plate for detachable connection with the first seat body or the second seat body.

[0012] Further preferred technical solutions are that the connecting piece includes a first through hole provided on the extension plate, a first threaded hole provided on the first seat body or the second seat body, and a first bolt passing through the first through hole and screwing with the first threaded hole.

[0013] Further preferred technical solutions are that the sliding seat unit further includes two locking pieces provided on the base and connected with the first seat body and the second seat body respectively.

[0014] Further preferably, the base is provided with a plurality of second threaded holes at the side ends of the sliding groove and spaced along the extending direction of the sliding groove; the locking member comprises a second through hole provided on the first seat body or the second seat body, and a second bolt passing through the second through hole and screwed with the second threaded hole.

[0015] Further preferably, the support column has a diameter of 5-50 mm.

[0016] Further preferably, the first seat body and the second seat body are provided with positioning lines.

[0017] Further preferably, the base is provided with handles at both ends. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the present application;

[0019] Figure 2 is a front view of the present application during measurement;

[0020] Figure 3 is a top view of the present application;

[0021] Figure 4 is a partial top view of the present application.

[0022] In the drawings, the meanings of the reference signs are as follows:

[0023] pipe section a;

[0024] base 1, sliding seat unit 2, signal unit 3, display screen 4;

[0025] second threaded hole 11, handle 12, sliding groove 21, first seat body 22, second seat body 23, support column 24, extension plate 25, connecting member 26, locking member 27, positioning line 28, through hole 31, transmitter 32, receiver 33;

[0026] first through hole 261, first threaded hole 262, first bolt 263, second through hole 271, second bolt 272. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described in detail below with reference to the drawings. The following description is merely preferred embodiments of the present application and is not intended to limit the scope of the present application.

[0028] The orientation terms mentioned or possibly mentioned in the present specification, such as up, down, left, right, front, back, front side, back side, top, bottom, etc., are defined with respect to the configuration shown in the drawings, and the words "inner" and "outer" refer to the direction towards or away from the geometric center of a particular component, which are relative concepts, so it is possible to change accordingly according to different positions, different use states, so the above-mentioned or other orientation terms should not be interpreted as restrictive terms.

[0029] As shown in the accompanying drawings, Figures 1-4 A device for detecting the machining tolerance of a pipe section, comprising a base 1, a sliding seat unit 2 arranged on the base 1 and used for fixing the position of the pipe section a, a signal unit 3 arranged on the sliding seat unit 2 and used for emitting / accepting signals to measure the machining tolerance inside the pipe section a, and a display screen 4 arranged on the base 1 and in communication connection with the signal unit 3.

[0030] In this embodiment, the general use method of the device for detecting the machining tolerance of a pipe section is as follows:

[0031] The base pipe structure of an ultrasonic water meter generally includes mounting holes for mounting internal metering components, reflection supports, etc., as shown in the Chinese Utility Model Patent with Patent No. CN218973547U, the mounting hole is a hollow cylindrical section extending perpendicular to the direction of the pipe section and communicating with the inside of the pipe section. The traditional household ultrasonic meter collects the sound waves transmitted alternately by the two ultrasonic transducers through the reflection column or reflection sheet inside the pipe, which is called U-shaped reflection mode. This mode is relatively mature. The present application is directed to the traditional ultrasonic meter. The sliding seat unit 2 is adjusted to the shape suitable for the mounting holes at both ends of the pipe section a, the mounting holes of the pipe section a are buckled on the sliding seat unit 2 of the base 1, and the signal unit 3 on the sliding seat unit 2 is turned on. The transmitting end of the signal unit 3 emits signals upward from one end of the mounting hole into the pipe section. The signals are reflected on the reflection surface (the reflection surface is 45°) of one end of the reflection support, and continue to advance to the other end of the reflection surface. The signals continue to return to the receiving end of the signal unit 3 in the other end of the mounting hole through reflection. The deviation of the reflected coordinate point and the transmitting point position in the signal unit 3 can measure the machining tolerance inside the pipe section. The results of the receiving end of the signal unit 3 are further displayed on the display screen 4 through communication connection, which is convenient for personnel to observe. This structure can quickly locate the tolerance problem and does not require professional detection personnel to operate, and the work efficiency is relatively high. The above-mentioned display screen and communication connection method are well known to those skilled in the art, and will not be described in detail in this embodiment.

[0032] As a preferred embodiment of the present application, the sliding seat unit 2 comprises a sliding groove 21 arranged on the base 1, a first seat body 22 and a second seat body 23 slidingly connected to the sliding groove 21, and two support columns 24 arranged on the first seat body 22 and the second seat body 23 respectively for limiting the pipe segment a.

[0033] In the present application, in order to adapt to various pipe segment products and have stronger compatibility, a specific structure of the sliding seat unit 2 is disclosed, the bottom of the first seat body 22 and the second seat body 23 are provided with protrusions slidingly connected in the sliding groove 21, a weight-reducing groove can be arranged at the center of the protrusion, the support column 24 is arranged on the upper surface of the first seat body 22 and the second seat body 23 for supporting the mounting hole of the pipe segment a, and is in close contact with the inner side wall of the hole to avoid the problem that the relative position of the pipe segment and the sliding seat unit 2 moves due to external factors during the measurement process, the length of the sliding groove 21 can be compatible with the interval of 20-200mm, and can adapt to the size of most pipe segments on the market.

[0034] As a preferred embodiment of the present application, the signal unit 3 comprises two through holes 31 arranged at the center of the two support columns 24 respectively, a transmitter 32 arranged on the first seat body 22 and located in the through hole 31, and a receiver 33 arranged on the second seat body 23 and located in the through hole 31.

[0035] In the present application, the transmitter 32 and the receiver 33 are respectively arranged on the first seat body 22 and the second seat body 23 and located in the through hole 31, preferably in close contact with the inner wall of the through hole 31 and at the center of the through hole, which is more convenient for intuitive comparison of deviation results, and the size of the support column 24 will not affect the transmitter 32 and the receiver 33; the transmitter can measure by transmitting waves, visible light, etc., preferably visible light for easy observation, and the receiver 33 is preferably a receiving screen which is more intuitive, when the visible light reaches the reflecting surface, if the reflecting surface is not installed at the specified position or is tilted due to extrusion during installation, etc., the reflected coordinates of the receiver 33 after reflection will not be located at the center, but will be offset, wherein if the reflected coordinates are offset left and right, it means that the installation position is horizontally offset relative to the position of the pipe segment, and if the reflected coordinates are offset up and down, it means that the plug-in process of the metering assembly in the pipe segment has been rotated or tilted relative to the pipe segment.

[0036] As a preferred embodiment of the present application, the sliding seat unit 2 further comprises an extension plate 25 arranged on the side end of the support column 24 close to the first seat body 22 or the second seat body 23, and a connecting piece 26 arranged on the extension plate 25 and detachably connected with the first seat body 22 or the second seat body 23; the diameter of the support column 24 is 5-50 mm; and the first seat body 22 and the second seat body 23 are provided with a positioning line 28.

[0037] In the present embodiment, the support column 24 can be replaced by a cylinder with a diameter of 5-50 mm to adapt to various sizes of pipe segment mounting holes; the extension plate 25 is parallel to the upper surface of the first seat body 22 or the second seat body 23; the support column 24 is fixed to / detached from the first seat body 22 or the second seat body 23 through the connecting piece 26; and the positioning line 28 facilitates pre-positioning of the support column when replacing the support column 24.

[0038] As a preferred embodiment of the present application, the connecting piece 26 comprises a first through hole 261 arranged on the extension plate 25, a first threaded hole 262 arranged on the first seat body 22 or the second seat body 23, and a first bolt 263 passing through the first through hole 261 and screwed with the first threaded hole 262.

[0039] In the present embodiment, a specific structure of the connecting piece 26 is disclosed, in which the first bolt 263 passes through the first through hole 261 and is screwed with the first threaded hole 262 to fix the position of the support column 24 on the first seat body 22 or the second seat body 23, thereby avoiding shaking of the support column 24 and causing measurement errors; preferably, there are at least two first bolts 263 arranged on opposite side ends of the support column 24.

[0040] As a preferred embodiment of the present application, the sliding seat unit 2 further comprises two locking pieces 27 arranged on the base 1 and connected with the first seat body 22 and the second seat body 23, respectively.

[0041] In the present embodiment, to further enhance the stability during measurement, after moving the first seat body 22 and the second seat body 23 to the position of clamping with the mounting hole before measurement, the pipe segment is buckled, and the relative position of the first seat body 22 and the second seat body 23 with the sliding groove 21 is fixed by the locking piece 27 before the start of measurement.

[0042] As a preferred embodiment of the present application, the base 1 is provided with a plurality of second threaded holes 11 arranged at the side end of the sliding groove 21 and spaced along the extension direction of the sliding groove 21; and the locking piece 27 comprises a second through hole 271 arranged on the first seat body 22 or the second seat body 23, and a second bolt 272 passing through the second through hole 271 and screwed with the second threaded hole 11.

[0043] In the embodiment, the second bolt 272 is screwed through the second through hole 271 and the second threaded hole 11 to complete the locking.

[0044] As a preferred embodiment of the present application, the base 1 is provided with a handle 12 at both ends.

[0045] In the embodiment, the handle 12 can be two grooves opened at both ends of the base 1, which facilitates the operator to move the device to a suitable position.

[0046] Compared with the prior art, the technical scheme has the advantages that although the positioning groove exists in the pipe section installation process, the positioning groove is prone to failure due to the processing mode of the plastic product cooperating with the plug, and the machining tolerance in the pipe section directly affects the metering effect, so the structure is simple, convenient and compatible, the machining tolerance existing in the pipe section is quickly measured and output, and the application is convenient to use.

[0047] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various modifications can be made within the knowledge range of ordinary skilled persons in the art without departing from the purpose of the utility model. These are all non-creative modifications, and as long as they are within the scope of the claims of the utility model, they are protected by the patent law.

Claims

1. An apparatus for detecting pipe section processing tolerances, characterized by: The utility model provides a pipe segment position measuring device, which comprises a base (1), a sliding seat unit (2) arranged on the base (1) and used for fixing the position of a pipe segment (a), a signal unit (3) arranged on the sliding seat unit (2) and used for emitting / accepting signals to measure the machining tolerance of the pipe segment (a), and a display screen (4) arranged on the base (1) and in communication connection with the signal unit (3).

2. The apparatus of claim 1, wherein: The sliding seat unit (2) comprises a sliding groove (21) arranged on the base (1), a first seat body (22) and a second seat body (23) which are slidably connected to the sliding groove (21), and two support columns (24) arranged on the first seat body (22) and the second seat body (23) respectively and used for limiting the position of the pipe segment (a).

3. An apparatus for detecting processing tolerances of pipe sections according to claim 2, characterized in that: The signal unit (3) comprises two through holes (31) arranged at the centers of the two support columns (24) respectively, an emitter (32) arranged on the first seat body (22) and located in the through hole (31), and a receiver (33) arranged on the second seat body (23) and located in the through hole (31).

4. The apparatus of claim 2, wherein: The sliding seat unit (2) further comprises an extension plate (25) arranged on the side end of the support column (24) close to the first seat body (22) or the second seat body (23), and a connecting piece (26) arranged on the extension plate (25) and used for detachably connecting the first seat body (22) or the second seat body (23).

5. An apparatus for detecting processing tolerances of pipe sections according to claim 4, characterized in that: The connecting piece (26) comprises a first through hole (261) arranged on the extension plate (25), a first threaded hole (262) arranged on the first seat body (22) or the second seat body (23), and a first bolt (263) penetrating through the first through hole (261) and screwed with the first threaded hole (262).

6. The apparatus of claim 2, wherein: The sliding seat unit (2) further comprises two locking pieces (27) arranged on the base (1) and connected to the first seat body (22) and the second seat body (23) respectively.

7. An apparatus for detecting processing tolerances of pipe sections according to claim 6, characterized in that: The base (1) is provided with a plurality of second threaded holes (11) arranged at the side end of the sliding groove (21) and spaced apart along the extension direction of the sliding groove (21); and the locking piece (27) comprises a second through hole (271) arranged on the first seat body (22) or the second seat body (23), and a second bolt (272) penetrating through the second through hole (271) and screwed with the second threaded hole (11).

8. The apparatus of claim 2, wherein: The diameter of the support column (24) is 5-50 mm.

9. The apparatus of claim 2, wherein: The first seat body (22) and the second seat body (23) are provided with a positioning line (28).

10. The apparatus of claim 3, wherein: The base (1) is provided with a handle (12) at each end.

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