CN117532528A - Pipe fitting detection device and system - Google Patents

Abstract

The invention relates to the technical field of pipe fitting detection and discloses a pipe fitting detection device and a pipe fitting detection system. The pipe fitting detection device comprises a pipe fitting fixing mechanism, a pipe fitting clamping mechanism, a pipe fitting detection mechanism, a rotary driving mechanism and a linear driving mechanism, wherein the pipe fitting fixing mechanism is used for fixing one end of a pipe fitting; the pipe fitting clamping mechanism is used for clamping the other end of the pipe fitting and comprises three rollers which are parallel to each other and are arranged at intervals, the axes of the rollers are parallel to the axes of the pipe fitting, and the three rollers are enclosed to form a clamping space; the pipe fitting detection mechanism is positioned between the pipe fitting fixing mechanism and the pipe fitting clamping mechanism and is used for detecting the pipe fitting; the rotary driving mechanism is used for driving the pipe fitting fixing mechanism to drive the pipe fitting to rotate around the axis of the pipe fitting fixing mechanism; the linear driving mechanism is used for driving the pipe fixing mechanism to drive the pipe to reciprocate along the axial direction of the pipe. The invention can well clamp the pipe fitting and coordinate with the position adjustment of the pipe fitting, reduce the damage to the surface of the pipe fitting in the clamping process, adjust the position of the pipe fitting in real time and effectively improve the detection efficiency.

Description

Pipe fitting detection device and system

Technical Field

The invention relates to the technical field of pipe fitting detection, in particular to a pipe fitting detection device and a pipe fitting detection system comprising the pipe fitting detection device.

Background

Metal pipes are pipe products of specific shapes formed by processing and shaping metal materials. The material of the metal tube needs to be checked before the metal tube leaves the factory.

CN217404166U discloses a nondestructive testing imaging device for metal pipes, which comprises a detection mechanism and a fixing mechanism, wherein the fixing mechanism comprises two groups of clamping parts for respectively clamping two ends of a metal pipe, each clamping part comprises a fixing seat and a clamping block which are mutually matched, a fastening bolt is penetrated in the middle of the top of each clamping block along the vertical direction, the bottom of each fastening bolt is connected with a buffer disc, and the adsorption surface of each buffer disc faces downwards and props against the peripheral side of the metal pipe 7 to fix the metal pipe; the detection mechanism comprises a detection part, and the detection part can slide along the axial direction of the metal pipeline and slide along the vertical direction.

The above-mentioned detection device, although being able to facilitate exploration of a metal pipe compared to detection by a manual hand-held detection mechanism, has the following problems: on one hand, the metal pipeline is clamped and fixed by the fixing seat and the buffer disc, and the metal pipeline is in surface contact with the fixing seat and the buffer disc, so that the surface of the metal pipeline is easily damaged; on the other hand, the metal pipeline is fixed in position after clamping, and in the detection process, the fastening bolt is required to be loosened manually for many times, and meanwhile, the metal pipeline is rotated to adjust the side surface of the metal pipeline facing the detection part, so that the detection efficiency is low.

Disclosure of Invention

The object of the present invention is to overcome the problems of the above-mentioned detection devices.

In order to achieve the above object, an aspect of the present invention provides a pipe fitting inspection apparatus, comprising:

the pipe fitting fixing mechanism is used for fixing one end of the pipe fitting;

the pipe fitting clamping mechanism is used for clamping the other end of the pipe fitting and comprises three rollers which are parallel to each other and are arranged at intervals, the axes of the rollers are parallel to the axis of the pipe fitting, and the three rollers are enclosed to form a clamping space;

the pipe fitting detection mechanism is positioned between the pipe fitting fixing mechanism and the pipe fitting clamping mechanism and used for detecting the pipe fitting;

the rotary driving mechanism is used for driving the pipe fitting fixing mechanism to drive the pipe fitting to rotate around the axis of the pipe fitting fixing mechanism; and

and the linear driving mechanism is used for driving the pipe fixing mechanism to drive the pipe to reciprocate along the axial direction of the pipe.

Preferably, the pipe fitting fixing mechanism comprises an outer fixing sleeve and an inner fixing sleeve, one end of the outer fixing sleeve is a closed end, the other end of the outer fixing sleeve is an open end, the inner fixing sleeve is coaxially sleeved in the outer fixing sleeve through the open end and partially extends out of the open end, the extending part of the inner fixing sleeve is used for fixedly sleeved at one end of the pipe fitting, and the rotary driving mechanism is used for driving the inner fixing sleeve to rotate relative to the outer fixing sleeve.

Preferably, the pipe fitting detecting device further includes a guide mechanism for guiding the reciprocating movement of the pipe fitting fixing mechanism.

Preferably, the outer fixing sleeve and the inner fixing sleeve are clamped by a clamping structure.

Preferably, the engagement structure includes an annular groove and an annular flange that are adapted, the annular groove being provided on one of an inner peripheral surface of the outer fixing sleeve and an outer peripheral surface of the inner fixing sleeve, the annular flange being provided on the other of the inner peripheral surface of the outer fixing sleeve and the outer peripheral surface of the inner fixing sleeve.

Preferably, the rotary driving mechanism comprises a first motor, the first motor is mounted on one side of the closed end, and a through hole for the output shaft of the first motor to extend into the outer fixing sleeve and be connected with the inner fixing sleeve is formed in the end wall of the outer fixing sleeve.

Preferably, the linear driving mechanism comprises a second motor, a screw rod and a sliding block, the screw rod is arranged above or below the pipe fitting fixing mechanism and extends along the axial direction of the pipe fitting fixing mechanism, an output shaft of the second motor is connected with one end of the screw rod to drive the screw rod to rotate around the axis of the screw rod, the sliding block is sleeved on the screw rod and is in threaded fit with the screw rod, and the external fixing sleeve is connected with the sliding block.

Preferably, the linear driving mechanism further comprises a supporting plate for supporting the screw rod, a sliding groove extending along the axial direction of the pipe fixing mechanism is arranged on the supporting plate, the sliding blocks are slidably arranged in the sliding groove, two ends of the screw rod are respectively and rotatably connected with two end walls of the sliding groove, guide rods parallel to and spaced from the screw rod are further arranged in the sliding groove, the sliding blocks are slidably sleeved on the guide rods, and the guide mechanism is formed by the sliding blocks, the screw rod, the sliding grooves and the guide rods.

Preferably, the linear driving mechanism further comprises a limiting structure arranged between the sliding groove and the sliding block.

Preferably, the limit structure comprises two grooves and two flanges which are matched, the two grooves are respectively arranged on two inner side walls of the sliding groove or two outer side walls of the sliding block in an extending mode, and the two flanges are respectively arranged on two outer side walls of the sliding block or two inner side walls of the sliding groove in an extending mode.

Preferably, the size of the clamping space is adjustable, and the pipe fitting detection device comprises an adjusting mechanism for adjusting the size of the clamping space.

Preferably, the three rollers include two limiting rollers horizontally spaced along the radial direction of the pipe fitting and one positioning roller vertically arranged below the limiting rollers, the pipe fitting clamping mechanism further includes two vertically arranged clamping rods and one positioning rod, the two limiting rollers are respectively and rotatably arranged at the upper ends of the two clamping rods, the positioning rollers are rotatably arranged at the upper ends of the positioning rods, a hinge point is formed in the middle of the clamping rods so that the clamping rods can rotate around the hinge point, the rotation axis of the clamping rods is parallel to the axis of the limiting rollers, and the positioning rods are arranged to be capable of moving along the vertical direction;

the adjusting mechanism is arranged to drive the upper ends of the two clamping rods to be close to each other by driving the positioning rods to ascend so as to reduce the clamping space, and drive the upper ends of the two clamping rods to be far away from each other by driving the positioning rods to descend so as to enlarge the clamping space.

Preferably, the adjusting mechanism comprises an air cylinder and a trapezoid block, the trapezoid block is arranged below the positioning rod, the air cylinder is arranged below the trapezoid block and used for driving the trapezoid block to drive the positioning rod to lift, and the lower ends of the two clamping rods are respectively abutted to inclined planes on two sides of the trapezoid block.

Preferably, the lower end of the clamping rod is provided with a driving roller, the axis of the driving roller is parallel to the axis of the limiting roller, and the two driving rollers are respectively abutted to inclined planes on two sides of the trapezoid block.

Preferably, the pipe fitting fixture further comprises a fixing box, the trapezoid blocks are arranged in the fixing box, the air cylinders are arranged below the fixing box and matched with the trapezoid blocks through bottom openings formed in the bottom wall of the fixing box, three top openings are formed in the top wall of the fixing box along two intervals of the clamping rods, each three top opening comprises two limiting openings and a lifting opening, the two limiting openings are respectively used for two clamping rods to be inserted and arranged to allow the clamping rods to rotate, the lifting openings are used for the positioning rods to be inserted and arranged to allow the positioning rods to lift, and two positioning plates for hinging the clamping rods are respectively arranged on the two sides of the top of the fixing box.

Preferably, the pipe clamping mechanism further comprises an uplink limiting piece for limiting the uplink travel of the trapezoid block and a downlink limiting piece for limiting the downlink travel of the trapezoid block.

Preferably, the pipe fitting detection mechanism comprises a detection head, a fixing piece and a driving piece, wherein the detection head is arranged above the pipe fitting, the detection head is connected with the driving piece through the fixing piece, and the driving piece is arranged to be capable of driving the fixing piece and the detection head to lift.

Preferably, the pipe fitting detection mechanism further comprises a central control panel, and the central control panel is electrically connected with the detection head and used for displaying a detection result from the detection head.

Preferably, the pipe fitting detection device comprises a supporting mechanism, the supporting mechanism comprises a workbench and a bracket, the pipe fitting fixing mechanism and the pipe fitting clamping mechanism are respectively arranged at two ends of the workbench in the horizontal direction, the bracket is arranged in the middle of the workbench, and the pipe fitting detection mechanism is arranged on the bracket.

Another aspect of the present invention provides a pipe inspection system comprising a pipe pusher and the pipe inspection device described above, the pipe pusher being adapted to supply pipe to be inspected to the pipe inspection device and to remove inspected pipe from the pipe inspection device.

According to the pipe fitting detection device, on one hand, three rollers are adopted to perform three-point positioning on the pipe fitting, and the axes of the rollers are parallel to the axes of the pipe fitting, so that the pipe fitting can be well clamped and matched with position adjustment of the pipe fitting, and the rollers are in line contact with the pipe fitting, and damage to the surface of the pipe fitting in the clamping process can be reduced; on the other hand, through setting up rotary driving mechanism and linear driving mechanism, can adjust the position of pipe fitting in real time in the testing process to effectively improve detection efficiency.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, illustrate and explain the invention and are not to be construed as limiting the invention. In the drawings:

FIG. 1 is a front view of one embodiment of a tubular inspection apparatus of the present invention;

FIG. 2 is a top view of the tubular inspection device of FIG. 1;

FIG. 3 is a perspective view of the tubular inspection device of FIG. 1;

FIG. 4 is a schematic view of the tube securing mechanism of FIG. 1 coupled to a slider, a first motor;

FIG. 5 is an exploded view of the attachment of the tubular securement mechanism to the slider of FIG. 1;

FIG. 6 is an inside schematic view of the outer fixing sleeve of FIG. 1;

fig. 7 is a cross-sectional view of the tubular clamping mechanism and adjustment mechanism of fig. 1.

Description of the reference numerals

10-pipe fitting fixing mechanisms, 11-outer fixing sleeves, 111-annular grooves, 112-through holes, 12-inner fixing sleeves and 121-annular flanges;

20-pipe fitting clamping mechanisms, 21-limit rollers, 22-positioning rollers, 23-clamping rods, 24-positioning rods, 25-driving rollers, 26-fixed boxes, 261-limit openings, 262-lifting openings, 263-bottom openings, 27-positioning plates, 28-upward limiting pieces and 29-downward limiting pieces;

30-pipe fitting detection mechanism, 31-detection head, 32-fixing piece, 33-driving piece and 34-central control panel;

40-a rotary driving mechanism, 41-a first motor, 411-an output shaft;

50-linear driving mechanism, 51-second motor, 52-screw rod, 53-slide block, 531-flange, 532-perforation, 54-support plate, 541-chute, 55-guide rod, 56-support rod, 57-connection column;

60-adjusting mechanism, 61-cylinder, 62-trapezoid block, 621-bottom extension, 63-push plate;

70-supporting mechanism, 71-workbench, 72-bracket, 73-supporting leg and 74-fixing frame.

Detailed Description

Embodiments of the present invention are described in further detail below with reference to the accompanying drawings. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention and are not intended to limit the scope of the invention, which may be embodied in many different forms and not limited to the specific embodiments disclosed herein, but rather to include all technical solutions falling within the scope of the claims.

These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be construed as exemplary only and not limiting unless otherwise specifically stated.

In the description of the present invention, unless otherwise indicated, the meaning of "plurality of" means greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like are merely used for convenience in describing the present invention and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention. When the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.

Furthermore, the use of the terms first, second, and the like in the present application are not used for any order, quantity, or importance, but rather are used for distinguishing between different parts. The "vertical" is not strictly vertical but is within the allowable error range. "parallel" is not strictly parallel but is within the tolerance of the error. The word "comprising" or "comprises" and the like means that elements preceding the word encompass the elements recited after the word, and not exclude the possibility of also encompassing other elements.

It should also be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art. When a particular device is described as being located between a first device and a second device, there may or may not be an intervening device between the particular device and either the first device or the second device.

All terms used herein have the same meaning as understood by one of ordinary skill in the art to which the present invention pertains, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and apparatus should be considered part of the specification.

In one aspect, the present invention provides a pipe fitting inspection apparatus, comprising:

a pipe fixing mechanism 10, wherein the pipe fixing mechanism 10 is used for fixing one end of a pipe;

the pipe fitting clamping mechanism 20 is used for clamping the other end of the pipe fitting, the pipe fitting clamping mechanism 20 comprises three rollers which are parallel to each other and are arranged at intervals, the axes of the rollers are parallel to the axis of the pipe fitting, and the three rollers are surrounded to form a clamping space;

a pipe fitting detection mechanism 30, wherein the pipe fitting detection mechanism 30 is positioned between the pipe fitting fixing mechanism 10 and the pipe fitting clamping mechanism 20 and is used for detecting a pipe fitting;

the rotary driving mechanism 40 is used for driving the pipe fixing mechanism 10 to drive the pipe to rotate around the axis of the pipe fixing mechanism 40; and

and a linear driving mechanism 50, wherein the linear driving mechanism 50 is used for driving the pipe fixing mechanism 10 to drive the pipe to reciprocate along the axial direction (see the horizontal direction in fig. 1).

In the foregoing, it will be understood that the surrounding of the three rollers to form the clamping space means that the three rollers are arranged in a triangle shape to form a surrounding shape. The center of the clamping space is positioned on the central axis of the pipe fitting.

According to the pipe fitting detection device, on one hand, three rollers are adopted to perform three-point positioning on the pipe fitting, and the axes of the rollers are parallel to the axes of the pipe fitting, so that the pipe fitting can be well clamped and matched with position adjustment of the pipe fitting, and the rollers are in line contact with the pipe fitting, and damage to the surface of the pipe fitting in the clamping process can be reduced; on the other hand, by providing the rotary driving mechanism 40 and the linear driving mechanism 50, the position of the pipe fitting can be adjusted in real time in the detection process, thereby effectively improving the detection efficiency.

The specific configuration of each mechanism described in the present invention is not limited, and any appropriate embodiment may be adopted as long as the function thereof can be achieved. Some preferred embodiments of the respective mechanisms will be described below with reference to the accompanying drawings.

For the pipe fitting fixing mechanism 10, as shown in fig. 4, the pipe fitting fixing mechanism 10 includes an outer fixing sleeve 11 and an inner fixing sleeve 12, one end of the outer fixing sleeve 11 is a closed end, the other end is an open end, the inner fixing sleeve 12 is coaxially sleeved in the outer fixing sleeve 11 through the open end and partially extends out of the open end, and the extending portion of the inner fixing sleeve 12 is used for fixing and sleeving one end of the pipe fitting.

Wherein, the inner fixing sleeve 12 may have one end as a closed end and the other end as an open end, and the closed end of the inner fixing sleeve 12 is disposed corresponding to the closed end of the outer fixing sleeve 11 so as to be connected with an output shaft 411 (described below) of the first motor 41; the inner fixing sleeve 12 may also be closed at both ends.

Wherein, in order to facilitate the rotation of the inner fixing sleeve 12, the engagement firmness of the inner fixing sleeve 12 and the outer fixing sleeve 11 is ensured, and the outer fixing sleeve 11 and the inner fixing sleeve 12 can be clamped by a clamping structure. Any suitable implementation may be adopted for the clamping structure.

In some embodiments, referring to fig. 5 and 6, the clamping structure includes an annular groove 111 and an annular flange 121 that are adapted, the annular groove 111 being provided on one of the inner circumferential surface of the outer fixing sleeve 11 and the outer circumferential surface of the inner fixing sleeve 12, the annular flange 121 being provided on the other of the inner circumferential surface of the outer fixing sleeve 11 and the outer circumferential surface of the inner fixing sleeve 12. To further enhance the fit-securing, a plurality of annular grooves 111 and a plurality of annular flanges 121 may be provided that are spaced apart along the axial direction of the tubular securing mechanism 10.

In the case of the embodiment of the pipe fixing mechanism 10 described above, the rotation driving mechanism 40 is provided to drive the rotation of the inner fixing sleeve 12 with respect to the outer fixing sleeve 11.

Specifically, in some embodiments, as shown in fig. 4-6, the rotary driving mechanism 40 includes a first motor 41, the first motor 41 is mounted on one side of the closed end of the outer fixing sleeve 11, and a through hole 112 is formed in the end wall of the outer fixing sleeve 11 for the output shaft 411 of the first motor 41 to extend into the outer fixing sleeve 11 and connect with the inner fixing sleeve 12 (specifically connect with the corresponding end wall of the inner fixing sleeve 12).

For the linear driving mechanism 50, referring to the embodiment shown in fig. 1 to 3, the linear driving mechanism 50 includes a second motor 51, a screw rod 52 and a slider 53, the screw rod 52 may be disposed above or below the pipe fixing mechanism 10 and extend along the axial direction of the pipe fixing mechanism 10, an output shaft of the second motor 51 is connected to one end of the screw rod 52 to drive the screw rod 52 to rotate around the axis thereof, the slider 53 is sleeved on the screw rod 52 and is in threaded engagement with the screw rod 52, and the outer fixing sleeve 11 is connected to the slider 53. It will be appreciated that when the second motor 51 drives the screw 52 in a forward direction, the slider 53 may slide in a forward direction relative to the screw 52 in its axial direction (e.g., toward the right as viewed in fig. 2), and when the second motor 51 drives the screw 52 in a reverse direction, the slider 53 may slide in a reverse direction relative to the screw 52 in its axial direction (e.g., toward the left as viewed in fig. 2), thereby effecting adjustment of the horizontal position of the tubular securing mechanism 10 and the tubular.

In some embodiments, the tubular inspection device may further include a guide mechanism for guiding the reciprocating movement of the tubular securing mechanism 10.

Specifically, referring to fig. 2, the linear driving mechanism 50 may further include a support plate 54 for supporting the screw rod 52, a sliding groove 541 extending along an axial direction of the pipe fixing mechanism 10 is provided on the support plate 54, the sliding block 53 is slidably disposed in the sliding groove 541, two ends of the screw rod 52 are respectively rotatably connected to two end walls of the sliding groove 541, a guide rod 55 parallel to and spaced from the screw rod 52 is further provided in the sliding groove 541, two ends of the guide rod 55 are respectively fixedly connected to two end walls of the sliding groove 541, the sliding block 53 is slidably sleeved on the guide rod 55, and the guiding mechanism is formed by the sliding block 53, the screw rod 52, the sliding groove 541 and the guide rod 55.

Referring to fig. 2 and 4, the slider 53 is in a square shape, and the slider 53 is provided with a through hole 532 for the screw rod 52 and the guide rod 55 to pass through, wherein the through hole 532 corresponding to the screw rod 52 is a threaded hole, and the through hole 532 corresponding to the guide rod 55 is a smooth hole. The two through holes 532 are symmetrically disposed at both sides of the slider 53 to facilitate the horizontal stable movement of the slider 53. The support plate 54 is disposed above the pipe fixing mechanism 10, and the bottom of the slider 53 is connected to the outer fixing sleeve 11 through the connection post 57. To accommodate different sized pipe elements, the slider 53 is preferably detachably connected to the outer fixing sleeve 11 to facilitate replacement of the outer fixing sleeve 11 and the inner fixing sleeve 12 to accommodate different sized pipe elements.

The sliding groove 541 may be a groove formed in the top surface of the support plate 54, or may be a groove penetrating through the thickness direction of the support plate 54. In the case that the sliding groove 541 is a groove, the bottom wall of the sliding groove 541 may be provided with an opening through which only the connection column 57 can pass, that is, the sliding block 53 may be at least partially embedded in the sliding groove 541 and supported on the bottom wall of the sliding groove 541, and the bottom wall of the sliding groove 541 forms a bottom limit for the sliding block 53. In the case that the sliding groove 541 is a slot, the linear driving mechanism 50 may further include a limiting structure disposed between the sliding groove 541 and the sliding block 53, where the limiting structure may limit the sliding block 53 to prevent the sliding block from being separated from the sliding groove 541.

In some embodiments, the limiting structure may include two grooves and two flanges 531, where the two grooves are respectively extended (i.e. extended along the moving direction of the sliding block) on two inner sidewalls of the sliding groove 541 or two outer sidewalls of the sliding block 53, and the two flanges 531 are respectively extended on two outer sidewalls of the sliding block 53 or two inner sidewalls of the sliding groove 541. Specifically, as shown in fig. 2 and 4, two flanges 531 are respectively extended on two opposite outer side walls of the sliding block 53, two grooves are respectively extended on two opposite inner side walls of the sliding groove 541, and the two flanges 531 are respectively embedded in the two grooves to limit the top and bottom of the sliding block 53.

In the invention, in order to adapt to pipe fittings with different sizes, the clamping space can be set to be adjustable in size. Further, the pipe inspection device may further include an adjusting mechanism 60 for adjusting the size of the gripping space. The adjusting mechanism 60 may adjust the size of the clamping space in any suitable manner, specifically, adjust the distance between the three rollers, that is, adjust the relative positions of the three rollers. The positions of the three rollers can be respectively adjusted through three mechanisms, and also can be adjusted through one mechanism.

Referring to fig. 7, the embodiment of the pipe fitting clamping mechanism is shown as an adjustment mechanism, the three rollers comprise two limiting rollers 21 horizontally arranged at intervals along the radial direction of the pipe fitting and one positioning roller 22 vertically arranged below the radial direction (namely, the positioning roller 22 is positioned below the middle part between the two limiting rollers 21, the three rollers are positioned in the same circumferential direction), the pipe fitting clamping mechanism 20 further comprises two vertically arranged clamping rods 23 and one positioning rod 24, the two limiting rollers 21 are respectively and rotatably arranged at the upper ends of the two clamping rods 23, the positioning roller 22 is rotatably arranged at the upper end of the positioning rod 24, the middle part of the clamping rod 23 forms a hinge point so that the clamping rod 23 can rotate around the hinge point, the rotation axis of the clamping rod 23 is parallel to the axis of the limiting roller 21, and the positioning rod 24 is arranged to be capable of moving along the vertical direction; the adjusting mechanism 60 is provided to drive the upper ends of the two clamp levers 23 toward each other by driving the positioning lever 24 upward to reduce the clamp space, and to drive the upper ends of the two clamp levers 23 away from each other by driving the positioning lever 24 downward to increase the clamp space. That is, by driving the lifting of the positioning rod 24, the rotation of the two clamping rods 23 can be simultaneously driven, thereby realizing the synchronous adjustment of the three rollers.

Further, as shown in fig. 7, the adjusting mechanism 60 includes an air cylinder 61 and a trapezoid block 62, the trapezoid block 62 is disposed below the positioning rod 24, the air cylinder 61 is disposed below the trapezoid block 62 for driving the trapezoid block 62 to drive the positioning rod 24 to lift, and the lower ends of the two clamping rods 23 are respectively abutted to inclined surfaces on two sides of the trapezoid block 62. When the cylinder 61 drives the trapezoid block 62 to rise, the trapezoid block 62 pushes the positioning rod 24 to rise so as to enable the positioning roller 22 to rise, meanwhile, the lower ends of the two clamping rods 23 are far away from each other under the pushing of inclined planes on two sides of the trapezoid block 62, and therefore the upper ends of the two clamping rods 23 are close to each other, and therefore the three rollers are contracted inwards so as to enable the clamping space to be reduced. When the cylinder 61 drives the trapezoid block 62 to descend, the trapezoid block 62 pushes the positioning rod 24 to descend so as to enable the positioning roller 22 to descend, meanwhile, the lower ends of the two clamping rods 23 are close to each other, the upper ends of the two clamping rods 23 are further away from each other, and therefore the three rollers are expanded outwards to enable the clamping space to be enlarged.

In order to facilitate the matching between the lower end of the clamping rod 23 and the inclined plane of the trapezoid block, a driving roller 25 may be disposed at the lower end of the clamping rod 23, the axis of the driving roller 25 is parallel to the axis of the limiting roller 21, and the two driving rollers 25 are respectively abutted to the inclined planes of the two sides of the trapezoid block 62.

As shown in fig. 7, the pipe fitting clamping mechanism 20 may further include a fixed box 26, a trapezoid block 62 is disposed in the fixed box 26, an air cylinder 61 is disposed below the fixed box 26 and is matched with the trapezoid block 62 through a bottom opening 263 formed on a bottom wall of the fixed box 26, three top openings are formed on a top wall of the fixed box 26 and are arranged at intervals along a spacing direction of two clamping rods 23, the three top openings include two limiting openings 261 located at two sides and a lifting opening 262 located in the middle, the two limiting openings 261 are respectively used for inserting the two clamping rods 23 and are set to allow the clamping rods 23 to rotate (i.e. a length of the limiting opening 261 is greater than a width of a corresponding portion of the clamping rod 23), the lifting opening 262 is used for inserting and setting the positioning rods 24 to allow the positioning rods 24 to lift, and two sides of the top of the fixed box 26 located at each clamping rod 23 are respectively provided with positioning plates 27 for hinging the clamping rods 23. In particular, the clamping bar 23 and the two positioning plates 27 corresponding thereto may be hinged by means of pins.

In some embodiments, the tubular clamping mechanism 20 may further include an up stop 28 for limiting the up travel of the trapezoidal block 62 and a down stop 29 for limiting the down travel of the trapezoidal block 62. The distance between the upward limiting piece 28 and the downward limiting piece 29 is matched with the extending length of the inclined planes at the two sides of the trapezoid block 62, so that the limiting roller 21 is always in abutting fit with the inclined planes.

As shown in fig. 7, the trapezoid block 62 is connected to the cylinder 61 below through the bottom extending portion 621, the downward stopper 29 is a stopper located below the trapezoid block 62 and supported on the bottom wall of the fixed case 26, and the downward stopper 29 is provided with a relief opening for relieving the bottom extending portion 621. The telescopic end of the cylinder 61 is provided with a push plate 63, and the push plate 63 abuts against the bottom surface of the bottom extension 621, so that the trapezoidal block 62 is driven to stably move by the push plate 63 having a large contact area. The upward movement limiting member 28 is a stopper extending downward from the inner side surface of the top wall of the fixed case 26, and the stopper can abut against the top surface of the trapezoid block 62 to limit.

By providing the mounting box 26, the tubular clamping mechanism 20 and the adjustment mechanism 60 can be integrated together for installation as a unit, thereby improving the convenience and flexibility of the device. Specifically, as shown in fig. 1 and 3, the fixing case 26 may be fitted in a mounting opening provided on the table 71.

For the pipe fitting detection mechanism 30, as shown in the embodiment of fig. 1 to 3, the pipe fitting detection mechanism 30 includes a detection head 31, a fixing member 32 and a driving member 33, which are disposed above the pipe fitting, the detection head 31 is connected to the driving member 33 through the fixing member 32, and the driving member 33 is configured to be capable of driving the fixing member 32 and the detection head 31 to lift and lower so as to adjust the position of the detection head 31 relative to the pipe fitting.

Wherein the fixing member 32 may be a tubular member, the axis of the fixing member 32 is perpendicular to the axis of the pipe member, and the fixing member 32 is located directly above the pipe member. The number of the detection heads 31 may be plural, for example, two, and the plurality of detection heads 31 may be arranged at intervals in the axial direction of the holder 32. The detection head 31 may be an ultrasonic flaw detector detection head. The driving member 33 may be a hydraulic cylinder.

As shown in fig. 3, the pipe fitting detecting mechanism 30 may further include a central control panel 34, and the central control panel 34 is electrically connected to the detecting head 31 for displaying the detection result from the detecting head 31. The central control panel 34 may be an ultrasonic flaw detector central control panel.

Referring to fig. 1 to 3, the pipe inspection device may further include a support mechanism 70, the support mechanism 70 including a table 71 and a bracket 72, the pipe fixing mechanism 10 and the pipe clamping mechanism 20 being disposed at both ends of the table 71 in a horizontal direction, respectively, the bracket 72 being disposed in a middle portion of the table 71, and the pipe inspection mechanism 30 being disposed on the bracket 72.

Further, the support mechanism 70 may further include a plurality of support legs 73 supported on the bottom of the table 71 to enable adjustment of the height position of the table 71. The bracket 72 may be a U-shaped bracket formed by connecting two side plates and a top plate. One end of the support plate 54 may be fixedly coupled to the bracket 72 (e.g., coupled to a top plate side of the bracket 72), and the other end of the support plate 54 may be fixedly supported on the table 71 through the support rod 56. The bracket 72 may further be provided with a fixing frame 74 for mounting the driving member 33, where the detection head 31 and the fixing member 32 are located below a top plate of the bracket 72, and an output end of the driving member 33 passes through the top plate and is connected with the fixing member 32.

The pipe fitting detection device can be used for various detection of pipe fittings, such as nondestructive detection of metal pipe fittings.

Another aspect of the present invention provides a pipe inspection system comprising a pipe pusher and a pipe inspection device, the pipe pusher being configured to supply a pipe to be inspected to the pipe inspection device and to remove the inspected pipe from the pipe inspection device.

During detection, an operator can pass one end of a pipe fitting to be detected through the clamping space through the pipe pushing machine until one end of the pipe fitting is clamped on the inner fixing sleeve 12, then the detection head 31 is started to detect the pipe fitting, during detection, the first motor 41 and the second motor 51 drive the pipe fitting to reciprocate along the axial direction and rotate 360 degrees around the axis of the pipe fitting, and the three rollers can be well matched with the pipe pushing machine and the two motors to adjust the position of the pipe fitting, so that real-time adjustment of the position of the pipe fitting is realized, and the detection efficiency of the pipe fitting is improved; meanwhile, the data detected by the detection head 31 can be displayed through the display screen of the central control panel 34, so that the analysis of technicians is facilitated; and after the detection is finished, the tube pushing machine takes down the detected tube fitting and carries out the detection of the next round. The pipe fitting fixture 20 can carry out the centre gripping to the pipe fitting of different diameters, only need put into the pipe fitting that awaits measuring on the locating roller 22, start cylinder 61 drives push pedal 63 and reciprocates, thereby drive the locating lever 24 that is connected with trapezoidal piece 62 reciprocates, when pipe fitting diameter is less, trapezoidal piece 62 can rise, the lower extreme of two clamping levers 23 can keep away from each other, the upper end can be close to each other, until cooperate two spacing rollers 21 to hold the pipe fitting, then the opposite direction removes when pipe fitting diameter is great, change the outer fixed sleeve 11 and the inner fixed sleeve 12 of corresponding diameter with it again, can be under the central altitude of centre gripping pipe fitting the circumstances that remains unchanged, the pipe fitting of the different diameters of self-adaptation, the suitability is strong.

Thus, embodiments of the present invention have been described in detail. In order to avoid obscuring the concepts of the invention, some details known in the art have not been described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.

While certain specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be understood by those skilled in the art that the foregoing embodiments may be modified and equivalents substituted for elements thereof without departing from the scope and spirit of the invention. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict.

Claims (10)

1. A pipe fitting inspection device, comprising:

a pipe fixing mechanism (10), wherein the pipe fixing mechanism (10) is used for fixing one end of a pipe;

the pipe fitting clamping mechanism (20), the other end of the pipe fitting clamping mechanism (20) is used for clamping a pipe fitting, the pipe fitting clamping mechanism comprises three rollers which are parallel to each other and are arranged at intervals, the axes of the rollers are parallel to the axis of the pipe fitting, and the three rollers are enclosed to form a clamping space;

a pipe fitting detection mechanism (30), wherein the pipe fitting detection mechanism (30) is positioned between the pipe fitting fixing mechanism (10) and the pipe fitting clamping mechanism (20) and is used for detecting the pipe fitting;

the rotary driving mechanism (40) is used for driving the pipe fixing mechanism (10) to drive the pipe to rotate around the axis of the pipe; and

and the linear driving mechanism (50) is used for driving the pipe fixing mechanism (10) to drive the pipe to reciprocate along the axial direction of the pipe.

2. A pipe inspection device according to claim 1, wherein,

the pipe fitting fixing mechanism (10) comprises an outer fixing sleeve (11) and an inner fixing sleeve (12), one end of the outer fixing sleeve (11) is a closed end, the other end of the outer fixing sleeve is an open end, the inner fixing sleeve (12) is coaxially sleeved in the outer fixing sleeve (11) through the open end and partially extends out of the open end, the extending part of the inner fixing sleeve (12) is used for fixedly sleeved at one end of the pipe fitting, and the rotary driving mechanism (40) is used for driving the inner fixing sleeve (12) to rotate relative to the outer fixing sleeve (11); and/or

The pipe fitting detection device further comprises a guide mechanism for guiding the reciprocating movement of the pipe fitting fixing mechanism (10).

3. Pipe fitting detection device according to claim 2, characterized in that the outer fixing sleeve (11) and the inner fixing sleeve (12) are clamped by a clamping structure,

preferably, the clamping structure comprises an annular groove (111) and an annular flange (121) which are matched, the annular groove (111) is arranged on one of the inner peripheral surface of the outer fixing sleeve (11) and the outer peripheral surface of the inner fixing sleeve (12), and the annular flange (121) is arranged on the other of the inner peripheral surface of the outer fixing sleeve (11) and the outer peripheral surface of the inner fixing sleeve (12).

4. A pipe inspection device according to claim 2, wherein,

the rotary driving mechanism (40) comprises a first motor (41), the first motor (41) is arranged on one side of the closed end, and a through hole (112) for the output shaft (411) of the first motor (41) to extend into the outer fixed sleeve (11) and be connected with the inner fixed sleeve (12) is formed in the end wall of the outer fixed sleeve (11); and/or

The linear driving mechanism (50) comprises a second motor (51), a screw rod (52) and a sliding block (53), the screw rod (52) is arranged above or below the pipe fitting fixing mechanism (10) and extends axially along the pipe fitting fixing mechanism (10), an output shaft of the second motor (51) is connected to one end of the screw rod (52) to drive the screw rod (52) to rotate around the axis of the screw rod (52), the sliding block (53) is sleeved on the screw rod (52) and is in threaded fit with the screw rod (52), and the outer fixing sleeve (11) is connected to the sliding block (53).

5. A pipe inspection device according to claim 4, wherein,

the linear driving mechanism (50) further comprises a supporting plate (54) for supporting the screw rod (52), a sliding groove (541) extending along the axial direction of the pipe fixing mechanism (10) is formed in the supporting plate (54), the sliding blocks (53) are slidably arranged in the sliding groove (541), two ends of the screw rod (52) are respectively and rotatably connected to two end walls of the sliding groove (541), guide rods (55) which are parallel to and spaced from the screw rod (52) are further arranged in the sliding groove (541), the sliding blocks (53) are slidably sleeved on the guide rods (55), and the guide mechanism is formed by the sliding blocks (53), the screw rod (52), the sliding grooves (541) and the guide rods (55);

preferably, the linear driving mechanism (50) further comprises a limiting structure arranged between the sliding chute (541) and the sliding block (53);

more preferably, the limiting structure includes two grooves and two flanges (531) that are adapted, the two grooves are respectively extended on two inner sidewalls of the sliding chute (541) or two outer sidewalls of the sliding block (53), and the two flanges (531) are respectively extended on two outer sidewalls of the sliding block (53) or two inner sidewalls of the sliding chute (541).

6. A pipe inspection device according to any one of claims 1-5 wherein,

the size of the clamping space is adjustable, and the pipe fitting detection device comprises an adjusting mechanism (60) for adjusting the size of the clamping space, preferably:

the three rollers comprise two limiting rollers (21) horizontally arranged at intervals along the radial direction of the pipe fitting and one positioning roller (22) vertically arranged below the limiting rollers, the pipe fitting clamping mechanism (20) further comprises two vertically arranged clamping rods (23) and one positioning rod (24), the two limiting rollers (21) are respectively and rotatably arranged at the upper ends of the two clamping rods (23), the positioning roller (22) is rotatably arranged at the upper ends of the positioning rods (24), a hinge point is formed in the middle of the clamping rods (23) so that the clamping rods (23) can rotate around the hinge point, and the rotation axis of the clamping rods (23) is parallel to the axis of the limiting rollers (21), and the positioning rods (24) are arranged to be capable of moving along the vertical direction;

the adjusting mechanism (60) is arranged to drive the upper ends of the two clamping rods (23) to be close to each other by driving the positioning rods (24) to ascend so as to reduce the clamping space, and drive the upper ends of the two clamping rods (23) to be far away from each other by driving the positioning rods (24) to descend so as to increase the clamping space.

7. The pipe fitting detection device according to claim 6, wherein the adjusting mechanism (60) comprises an air cylinder (61) and a trapezoid block (62), the trapezoid block (62) is arranged below the positioning rod (24), the air cylinder (61) is arranged below the trapezoid block (62) and is used for driving the trapezoid block (62) to drive the positioning rod (24) to lift, and the lower ends of the two clamping rods (23) are respectively abutted to inclined planes on two sides of the trapezoid block (62);

preferably, a driving roller (25) is arranged at the lower end of the clamping rod (23), the axis of the driving roller (25) is parallel to the axis of the limiting roller (21), and the two driving rollers (25) are respectively abutted against the inclined surfaces at two sides of the trapezoid block (62);

preferably, the pipe fitting clamping mechanism (20) further comprises a fixed box (26), the trapezoid blocks (62) are arranged in the fixed box (26), the air cylinders (61) are arranged below the fixed box (26) and are matched with the trapezoid blocks (62) through bottom openings (263) formed in the bottom wall of the fixed box (26), three top openings are formed in the top wall of the fixed box (26) at intervals along the interval direction of two clamping rods (23), each of the three top openings comprises two limiting openings (261) on two sides and a lifting opening (262) in the middle, the two limiting openings (261) are respectively used for inserting and arranging two clamping rods (23) and are used for allowing the clamping rods (23) to rotate, the lifting openings (262) are used for inserting and arranging positioning rods (24) and are used for allowing the positioning rods (24) to lift, and the top of the fixed box (26) is provided with two positioning rods (27) which are respectively arranged on two sides of each clamping rod (23);

preferably, the pipe clamping mechanism (20) further comprises an uplink limiting piece (28) for limiting the uplink travel of the trapezoid block (62) and a downlink limiting piece (29) for limiting the downlink travel of the trapezoid block (62).

8. A pipe inspection device according to any one of claims 1-5 wherein,

the pipe fitting detection mechanism (30) comprises a detection head (31), a fixing piece (32) and a driving piece (33) which are arranged above the pipe fitting, wherein the detection head (31) is connected with the driving piece (33) through the fixing piece (32), and the driving piece (33) is arranged to drive the fixing piece (32) and the detection head (31) to lift;

preferably, the pipe fitting detection mechanism (30) further comprises a central control panel (34), and the central control panel (34) is electrically connected with the detection head (31) for displaying a detection result from the detection head (31).

9. A pipe fitting detection apparatus according to any one of claims 1-5, characterized in that the pipe fitting detection apparatus comprises a support mechanism (70), the support mechanism (70) comprises a workbench (71) and a bracket (72), the pipe fitting fixing mechanism (10) and the pipe fitting holding mechanism (20) are respectively arranged at two ends of the workbench (71) in the horizontal direction, the bracket (72) is arranged in the middle of the workbench (71), and the pipe fitting detection mechanism (30) is arranged on the bracket (72).

10. A pipe inspection system comprising a pipe pusher and the pipe inspection device of any one of claims 1-9, the pipe pusher being adapted to supply pipe to be inspected to the pipe inspection device and to remove inspected pipe from the pipe inspection device.