CN209716874U - A kind of assembling positioning tool - Google Patents

Abstract

The utility model belongs to flow measurement technology field, specifically disclose a kind of assembling positioning tool, the assembling for being configured as two sections of tube bodies and restricting element provides positioning, the tube body is provided with a pressure port close to one end of the restricting element, the restricting element is located between two tube bodies, the assembling positioning tool includes: standard station, and upper surface is benchmark plane, is configurable for placing the tube body；Locating piece, it includes the first arm and the second arm of parallel interval setting, and it is connected to the interconnecting piece between first arm and second arm, the distance between first arm and second arm are equal to two pressure ports at a distance from the axial direction of the tube body, and the length of first arm is greater than the radius of the tube body.Assembling positional stations provided by the utility model can be improved the assembling positioning accuracy of tube body and restricting element, saves built-up time and assembling cost, improves packaging efficiency.

Description

A kind of assembling positioning tool

Technical field

The utility model relates to flow measurement technology field more particularly to a kind of assembling positioning tools.

Background technique

When measuring to piping flow, restricting element usually is set between two pipelines, so that before restricting element The flow differential pressure of end and back end line generates variation, is examined by flow differential pressure of the flowmeter to restricting element front-end and back-end It surveys, is measured with the flow to pipeline.

Due to offering throttle orifice on restricting element, it is provided with pressure port on the pipeline of restricting element front-end and back-end, For the accuracy for guaranteeing flow detection, the line between two throttle orifices needs consistent with fluid flow direction, and needs to guarantee Pressure port is between the two adjacent throttle orifices of restricting element.The prior art is led to when carrying out the assembling of pipeline and restricting element Be often after be bonded the assembly of pipeline and restricting element, vertically prevent on horizontal countertop, then overlooked and positioned by range estimation, or It is terminated at pipe interface with other workpiece are anti-, is positioned by horizontal position in-migration, after the completion of positioning, carry out pipeline and restricting element Welding.

The assembling positioning of pipeline and restricting element causes to be difficult to find that due to being positioned using naked eyes in the prior art Ideal position, it is poor so as to cause positioning accuracy, influence the accuracy of flow measurement；And positioned using artificial eye, it is time-consuming compared with It is long, cost of labor is increased, packaging efficiency is reduced.

Utility model content

The purpose of this utility model is to provide assembling positioning tool, with improve tube body and restricting element positioning accuracy and Packaging efficiency reduces assembling cost, improves the accuracy of piping flow measurement.

To achieve the above object, the utility model adopts the following technical solutions:

A kind of assembling positioning tool, the assembling for being configured as two sections of tube bodies and restricting element provide positioning, and the tube body leans on One end of the nearly restricting element is provided with a pressure port, and the restricting element is located between two tube bodies, described Assembling positioning tool includes:

Standard station, upper surface are benchmark plane, are configurable for placing the tube body；

Locating piece comprising the first arm and the second arm of parallel interval setting, and it is connected to first arm Interconnecting piece between second arm, the distance between first arm and second arm be equal to two described in take Axial distance of the hole along the tube body is pressed, the length of first arm is greater than the radius of the tube body.

Further, first arm includes the insertion arm being arranged along its length and extends arm, described to insert The one end for entering arm is connect with the interconnecting piece, and the other end of the insertion arm is connect with the extension arm, the extension Arm is less than projection width of the insertion arm on the restricting element in the projection width on the restricting element.

Further, it is described insertion arm length less than 1/2 tube body radius, it is described extend arm length it is big In or equal to 1/2 tube body radius.

Further, the insertion arm, the interconnecting piece and second arm are integrally formed.

Further, the extension arm is welded or is threadedly coupled with the insertion arm.

Further, the insertion arm and second arm are cylindrical structure, and the insertion arm and institute The outer diameter for stating the second arm is equal to the aperture of the pressure port.

Further, the interconnecting piece is vertical with first arm and second arm respectively.

Further, using circle between the interconnecting piece and first arm and the interconnecting piece and second arm Arc transition connection.

Further, one end that first arm connects the interconnecting piece with second arm vertically bends and slides It is set in the outer surface of the interconnecting piece.

The utility model has the beneficial effects that:

Assembling positioning tool provided by the utility model improves the positioning accuracy between restricting element and tube body, guarantees Positional accuracy between first pressure port, the second pressure port and restricting element is conducive to the essence for improving tube body flow measurement Degree；And can reduce simple rely on and visually position bring error and time cost, improve positioning and packaging efficiency.

Detailed description of the invention

Fig. 1 is the structural representation of assembling positioning tool positioning tube body and restricting element provided by the embodiment of the utility model Figure；

Fig. 2 is the fractionation structural representation of structure in Fig. 1；

Fig. 3 is the top view of structure in Fig. 1.

It is marked in figure as follows:

10- assembles positioning tool；20- tube body；The first tube body of 201-；The first pressure port of 2011-；The second tube body of 202-； The second pressure port of 2021-；203- mounting groove；30- restricting element；301- function hole；3011- central function hole；3012- circumferential direction letter Number hole；

1- locating piece；The first arm of 11-；111- is inserted into arm；112- extends arm；The second arm of 12-；13- interconnecting piece；

2- standard station；21- datum plane.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.

In the description of the present invention, unless otherwise clearly defined and limited, term " connected ", " connection ", " Gu It is fixed " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or integral；It can be mechanical connect It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary The interaction relationship of the connection in portion or two elements.For the ordinary skill in the art, it can be managed with concrete condition Solve the concrete meaning of above-mentioned term in the present invention.

In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it "lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above " One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only Indicate that first feature horizontal height is less than second feature.

In the description of the present embodiment, term " on ", "lower", " right side ", etc. orientation or positional relationships be based on shown in attached drawing Orientation or positional relationship, be merely for convenience of description and simplification operation, rather than the device or element of indication or suggestion meaning It must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.This Outside, term " first ", " second " are only used to distinguish between description, and have no special meaning.

Fig. 1 is the structural representation of assembling positioning tool positioning tube body and restricting element provided by the embodiment of the utility model Figure, Fig. 2 is the fractionation structural representation of structure in Fig. 1, and Fig. 3 is the top view of structure in Fig. 1, as shown in Figure 1-3, the present embodiment A kind of assembling positioning tool 10 is provided, for being positioned to assembling of the restricting element 30 between two tube bodies 20, envoy The setting of throttle orifice meets the requirement of flow measurement in the setting of fluid element 30 and two tube bodies 20, improves tube body 20 and throttling The positioning accuracy of element 30.

Specifically, as shown in Fig. 2, in the present embodiment, the pressure for 30 pressure of restricting element is provided on tube body 20 Hole.In the present embodiment, tube body 20 includes that first tube body 201 of 30 one end of restricting element is arranged in and is arranged in restricting element 30 Second tube body 202 of the other end offers the first pressure port through 201 surfaces externally and internally of the first tube body on the first tube body 201 2011, the second pressure port 2021 through 202 surfaces externally and internally of the second tube body is offered on the second tube body 202.

In the present embodiment, the pipe outside diameter and bore of the first tube body 201 and the second tube body 202 are all the same, to prevent One tube body 201 and the second tube body 202 generate flow pressure-difference because of self structure.First pressure port 2011 and the second pressure port 2021 Aperture it is identical, to realize the accurate measurement of flowmeter pressure difference in the first tube body 201 and the second tube body 202.And first pressure The distance of 202 end face of distance and 2021 the second tube body of distance of the second pressure port of 2011 the first tube body of distance of hole, 201 end face can It is carried out according to the flow velocity in the measurement accuracy of flowmeter, the type of restricting element 30, the size of bore and tube body 20 specific It determines, and it is ordinary skill in the art means that pressure port, which is arranged, on tube body 20, the present embodiment is no longer repeated.

Restricting element 30 is the symmetrical structure of porous disc, is provided with multiple function holes 301, can balance flow field, Vortex vibration is reduced, flowing field stability is greatly improved, enhances the stability and precision of measurement of fluid flow.In the present embodiment, The number of function hole 301 on restricting element 30 is seven, and one of central function hole 3011 is located in restricting element 30 The heart, in addition six circumferential function holes 3012 are evenly spaced on along the circumferential direction with regard to restricting element 30.In other embodiments, function The number in hole 301 can also be six, eight or more.

In the present embodiment, the aperture of each function hole 301 is all the same, in other embodiments, is also possible to center letter The aperture in number hole 3011 is different from the circumferential aperture of function hole 3012.And the aperture of function hole 301 should be in the pipe according to tube body 20 Diameter, type of flowmeter etc. are specifically determined.

In the present embodiment, one end end face that the first tube body 201 and the second tube body 202 are provided with pressure port opens up useful In the mounting groove 203 for placing restricting element 30, the diameter of mounting groove 203 is equal to the outer diameter of restricting element 30, so as to guarantee After restricting element 30 is mounted in mounting groove 203, the circumferential cell wall of mounting groove 203 is abutted with restricting element 30, makes restricting element 30 and first tube body 201 and the second tube body 202 be coaxially disposed.

And in this embodiment, it is preferred that, it is provided with chamfering between the cell wall of mounting groove 203 and the end face of tube body 20, with Facilitate installation of the restricting element 30 in mounting groove 203.

In the present embodiment, tube body 20 and the positioning of restricting element 30 should meet: (1) the first pressure port 2011 and second takes The line of centres in pressure hole 2021 is overlapped with 20 diameter of tube body；The center of (2) first pressure ports 2011 and the second pressure port 2021 exists Projection on restricting element 30 is located at the middle position of two neighboring circumferential function hole 3012；(3) in central function hole 3011 The heart is located on the axis of tube body 20.

As shown in Fig. 2, assembling positioning tool 10 provided in this embodiment includes standard station 2 and locating piece 1.Standard station 2 Upper surface is benchmark plane 21, is used to place tube body 20, the assembling for tube body 20 and restricting element 30 provides datum level.Positioning Part 1 is used to position the position between the first pressure port 2011, the second pressure port 2021 and restricting element 30.

Specifically, the whole U-shaped structure of locating piece 1 comprising be arranged in parallel and at interval the first arm 11 and the second arm Portion 12 and the interconnecting piece 13 being vertically connected between the first arm 11 and the second arm 12.First arm 11 and the second arm 12 The distance between be equal to the first pressure port 2011 and the second pressure port 2021 along the distance of 20 axis direction of tube body.First arm 11 It is less than or equal to the aperture of the first pressure port 2011 and the second pressure port 2021 with the size of the second arm 12, so that the first arm 11 and second arm 12 can be respectively protruding into the first pressure port 2011 and the second pressure port 2021, and the length of the first arm 11 Greater than the radius of tube body 20.

It is as follows using process of the assembling positioning tool 10 to tube body 20 and the positioning assembling of restricting element 30:

Step 1: the second tube body 202 is vertically disposed on standard station 2；

Step 2: restricting element 30 being placed in the mounting groove 203 of the second tube body 202, guarantee restricting element 30 and second Tube body 202 is coaxially disposed；

Step 3: the first tube body 201 being placed on restricting element 30, and 30 upper end of restricting element is made to protrude into the first tube body In 201 mounting groove 203, the coaxial placement of the first tube body 201, the second tube body 202 and restricting element 30 is realized；

Step 4: protrude into the second arm 12 of locating piece 1 in second pressure port 2021, meanwhile, the first tube body 201 is rotated, Protrude into the first arm 11 in first positioning hole.

Since the distance between the first arm 11 and the second arm 12 are equal to the first pressure port 2011 and the second pressure port 2021 along 20 axis direction of tube body distance, when the first arm 11 protrudes into the first pressure port 2011 and the second arm 12 protrudes into When in two pressure ports 2021, the line of centres and 20 axis side of tube body of the center of the first pressure port 2011 and the second pressure port 2021 To parallel.

Step 5: the first arm 11 and the second arm 12 are persistently pushed into the first pressure port 2011 or the second pressure port 2021 In, abut interconnecting piece 13 with 20 outer surface of tube body towards the one side of tube body 20.

The step can guarantee that the positional relationship between the first tube body 201 and the second tube body 202 is stablized, the first tube body 201 And second will not relatively rotate between tube body 202 and axial relative motion.

Step 6: being based on overlook direction, adjust position of the restricting element 30 between the first tube body 201 and the second tube body 202 It sets, makes the first arm 11 between two annular function holes 301 and the first arm 11 passes through the center in central function hole 3011.

Since the first arm 11 protrudes into 201 inside of the first tube body and is located at the top of restricting element 30, carried out from vertical view Viewing can observe the position of function hole 301 in the opposite restricting element 30 of the first arm 11, so as to according to first The position of arm 11, rotation adjustment restricting element 30 are located at the first arm 11 between two neighboring circumferential restricting element 30.

Step 7: extracting locating piece 1 out the first tube body 201 and the second tube body 202, and weld the first tube body 201, throttling member Part 30 and the second tube body 202.

The present embodiment carries out assembling positioning to tube body 20 and restricting element 30 by providing assembling positioning tool 10, improves Positioning accuracy between restricting element 30 and tube body 20 ensure that the first pressure port 2011, the second pressure port 2021 and throttling member Positional accuracy between part 30 is conducive to the precision for improving 20 flow measurement of tube body；And it can reduce simple by visually fixed Position bring error and time cost improve positioning and packaging efficiency.

It is further preferable that in the present embodiment, the first arm 11 includes 111 He of insertion arm being arranged along its length Extend arm 112, insertion arm 111 is cylindrical-shaped structure, and one end is connect with interconnecting piece 13, the other end and extension arm 112 Connection.Extend arm 112 cross section be rectangle, and extend arm 112 30 surface of restricting element projection width be less than insert Enter arm 111 in the projection width on 30 surface of restricting element, this kind setting can reduce and extend arm 112 in restricting element 30 On projected area, further increase positioning accuracy.

It is further preferable that radius of the length of insertion arm 111 less than 1/2 tube body 20, the length for extending arm 112 are greater than Or the radius equal to 1/2 tube body 20

It is further preferable that in the present embodiment, the diameter for being inserted into arm 111 and the first arm 11 is equal to the first pressure port 2011 aperture guarantees first to further increase the positioning accuracy and stability of the first tube body 201 and the second tube body 202 The positional accuracy of pressure port 2011 and the second pressure port 2021.

It is inserted into arm 111, interconnecting piece 13 and the first arm 11 in the present embodiment to be integrally formed, and is cylindrical knot Structure, to facilitate the processing of locating piece 1.Extension arm 112 can be used the modes such as welding or threaded connection and be connected to insertion arm 111 Front end.

In other embodiments, one end that insertion arm portion 111 or the first arm 11 can also be made to connect interconnecting piece 13 is vertical Bending, and the both ends for the interconnecting piece 13 that is slidably located in respectively, so as to by adjusting interconnecting piece 13 and insertion arm 111 or the Link position between one arm 11 adjusts the distance between the first arm 11 and the second arm 12, to make assembling positioning work Fill 10 positioning being suitable between various sizes of tube body 20 and restricting element 30.

In this embodiment, it is preferred that between the first arm 11 and interconnecting piece 13 and the second arm 12 and interconnecting piece 13 Between be all made of arc transition connection, with prevent locating piece 1 to 20 surface of tube body cause scratch the problems such as.

Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended Scope of the claims determine.

Claims (9)

1. a kind of assembling positioning tool, the assembling for being configured as two sections of tube bodies (20) and restricting element (30) provides positioning, described Tube body (20) is provided with a pressure port close to the one end of the restricting element (30), and the restricting element (30) is located at two Between the tube body (20), which is characterized in that the assembling positioning tool (10) includes:

Standard station (2), upper surface are benchmark plane (21), are configurable for placing the tube body (20)；

Locating piece (1) comprising the first arm (11) and the second arm (12) of parallel interval setting, and it is connected to described the Interconnecting piece (13) between one arm (11) and second arm (12), first arm (11) and second arm The distance between (12) it is equal to two pressure ports along the axial distance of the tube body (20), first arm (11) Length is greater than the radius of the tube body (20).

2. assembling positioning tool according to claim 1, which is characterized in that first arm (11) includes along its length The insertion arm (111) of direction setting and extension arm (112), one end of insertion arm (111) and the interconnecting piece (13) it connects, the other end of insertion arm (111) is connect with the extension arm (112), extension arm (112) In It is wide that projection width on the restricting element (30) is less than projection of insertion arm (111) on the restricting element (30) Degree.

3. assembling positioning tool according to claim 2, which is characterized in that the length of insertion arm (111) is less than The radius of 1/2 tube body (20), the length for extending arm (112) are greater than or equal to the radius of 1/2 tube body (20).

4. assembling positioning tool according to claim 2, which is characterized in that the insertion arm (111), the interconnecting piece (13) and second arm (12) is integrally formed.

5. assembling positioning tool according to claim 4, which is characterized in that the extension arm (112) and the insertion Arm (111) welding is threadedly coupled.

6. assembling positioning tool according to claim 2, which is characterized in that the insertion arm (111) and described second Arm (12) is cylindrical structure, and the outer diameter of insertion arm (111) and second arm (12) is equal to described take Press the aperture in hole.

7. assembling positioning tool according to claim 1, which is characterized in that the interconnecting piece (13) is respectively with described first Arm (11) and second arm (12) are vertical.

8. assembling positioning tool according to claim 7, which is characterized in that the interconnecting piece (13) and first arm (11) and between the interconnecting piece (13) and second arm (12) it is connect using arc transition.

9. assembling positioning tool according to claim 1, which is characterized in that first arm (11) and second arm One end that portion (12) connects the interconnecting piece (13) is vertically bent and the outer surface for the interconnecting piece (13) that are slidably located in.