CN217654490U - Volute outlet pipe wall thickness detection device - Google Patents

Abstract

The utility model discloses a volute outlet pipe wall thickness detection device, include: the base is provided with a rotating base; the bracket is arranged above the base and is fixedly connected with the base; a group of oppositely arranged measuring arms which are arranged on the bracket in a sliding way; the two ends of the abutting and pushing spring are respectively abutted against the bracket and the measuring arm; after the scroll casing is placed on the rotating base, the tail end of the measuring arm props against the side wall of the scroll casing to measure the thickness of the scroll casing. The utility model discloses can increase measuring result's accuracy nature in the measurement process.

Description

Volute outlet pipe wall thickness detection device

Technical Field

The utility model relates to a pipe wall thickness measurement field especially relates to a volute outlet pipe wall thickness detection device.

Background

In the production and processing process of the volute, in order to ensure the quality and the use effect of the volute, the thickness of the pipe wall of the outlet of the volute needs to be detected so as to ensure the production precision of the volute.

In the prior art, workers use a traditional thickness detection device (such as a vernier caliper) to detect the thickness of the pipe wall, the thickness detection device is used to measure a plurality of positions of the pipe wall of the volute outlet respectively to obtain a plurality of measurement data points, and a conclusion whether a product is qualified is obtained by judging whether the data points exceed a threshold value. However, the inventor finds that the method can lead to the measured data being not accurate enough, and has the problem of insufficient accuracy.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a thickness detection device for a volute outlet pipe wall, which can increase the accuracy of the measurement result.

Based on the above-mentioned purpose, the utility model provides a volute outlet pipe wall thickness detection device, include:

the base is provided with a rotating base;

the bracket is arranged above the base and is fixedly connected with the base;

the measuring arms are arranged oppositely and are arranged on the bracket in a sliding manner;

the two ends of the abutting spring are respectively abutted against the bracket and the measuring arm;

after the scroll is placed on the rotating base, the tail end of the measuring arm is abutted to the side wall of the scroll so as to measure the overall thickness of the scroll and obtain a numerical value of thickness change.

Preferably, the rotating base is symmetrically provided with clamping plates, and the clamping plates are connected to the rotating base in a sliding manner, face to the center of the rotating base and are used for fixing the position of the volute to be tested.

Preferably, the measuring arm comprises a telescopic cylinder, a sliding groove is formed in the support, one end of the telescopic cylinder is provided with a sliding block which can slide along the sliding groove, and the other end of the telescopic cylinder is fixedly connected with a contact, so that the measuring arm can move along the support to adjust the distance between the measuring arms.

Preferably, the longitudinal section of the abutting head is triangular, so that the abutting head can conveniently abut against any position of the outlet pipe wall of the volute, and the thickness value can be conveniently obtained.

Preferably, the support is provided with symmetrical and convex limiting blocks, the limiting blocks are abutted to the abutting and pushing springs, and displacement cannot be generated when the abutting and pushing springs are deformed under stress.

Preferably, the limiting block is fixedly connected with a pressure sensor for receiving pressure data transmitted by the measuring arm when the abutting spring is pushed.

Preferably, a handle is arranged on one side of the base, a cushion layer is arranged at one end of the abutting and pushing spring and made of rubber, and therefore the stress area is increased when the measuring arm slides to the abutting and pushing spring.

The utility model provides a volute outlet pipe wall thickness detection device's beneficial effect as follows:

before the measuring device is used, a volute to be measured is placed on a rotating base in a base, measuring arms arranged on a support in a relative mode are adjusted, the tail ends of the measuring arms are abutted to the side wall of the volute, the rotating base can be rotated in the process, a supporting spring on the support always keeps the position of the measuring arms through self elasticity, the tail ends of the supporting springs are always abutted to the side wall of the volute, the change of deformation distance generated by the supporting spring when the measuring arms displace on the support is observed, and the thickness value and the thickness change value of the outlet pipe wall of the volute are calculated. The problem of insufficient data accuracy is effectively avoided by dereferencing the multipoint distance thickness of the volute in the measuring process, and the data accuracy is improved.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only the present invention, and those skilled in the art can obtain other drawings without creative efforts.

FIG. 1 is a schematic perspective view of the present embodiment;

FIG. 2 is a schematic plan view of the measuring pump body of the present embodiment;

FIG. 3 is a schematic structural view of a measuring arm connecting bracket according to the present embodiment;

fig. 4 is an enlarged structural diagram of the connection limiting block region of the push spring in this embodiment.

Labeled in the figure as:

1. a base; 2. rotating the base; 3. a support; 4. a measuring arm; 5. pushing the spring; 6. a clamping plate; 7. a telescopic cylinder; 8. a chute; 9. a slider; 10. abutting against the contact; 11. a limiting block; 12. a pressure sensor; 13. and (5) cushion coating.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the following embodiments.

It should be noted that unless otherwise defined, technical terms or scientific terms used herein should have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and the like in the description of the invention does not denote any order, quantity, or importance, but rather the terms "first," "second," and the like are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In order to achieve the above object of the present invention, as shown in fig. 1-4, the present invention provides a thickness detection device for outlet tube wall of volute, including:

the device comprises a base 1, wherein a rotating base 2 is arranged on the base 1;

the bracket 3 is arranged above the base 1 and is fixedly connected with the base 1;

a set of oppositely arranged measuring arms 4, which are slidably mounted on the bracket 3;

the two ends of the abutting and pushing spring 5 abut against the bracket 3 and the measuring arm 4 respectively;

after the scroll casing is placed on the rotating base 2, the tail end of the measuring arm 4 is abutted against the side wall of the scroll casing so as to measure the overall thickness of the scroll casing and obtain the value of thickness change.

Before the device is used, a volute to be measured is placed on the rotating base 2 in the base 1, the measuring arm 4 on the support 3 is adjusted, the tail end of the measuring arm 4 is abutted to the side wall of the volute, the rotating base 2 can be rotated in the period, the abutting spring 5 on the support 3 always keeps the position of the measuring arm 4 through self elasticity, the tail end of the abutting spring always abuts against the side wall of the volute, the change of deformation distance generated by the abutting spring 5 when the measuring arm 4 displaces on the support 3 is observed, and the thickness value and the thickness change value of the outlet pipe wall of the volute are calculated. The problem of insufficient data accuracy is effectively avoided by dereferencing the multipoint distance thickness of the volute in the measuring process, and the data accuracy is improved.

As an alternative embodiment, as shown in fig. 1 and 2, the clamping plate 6 is slidably connected to the rotating base 2 and faces the central position of the rotating base 2, so that the rotating base 2 can fix the position of the volute to be tested when rotating.

As an optional implementation manner, as shown in fig. 1 and fig. 2, the measuring arm 4 includes a telescopic cylinder 7, a sliding groove 8 is arranged on the support 3, a sliding block 9 capable of sliding along the sliding groove 8 is arranged at one end of the telescopic cylinder 7, and a contact 10 is fixedly connected to the other end of the telescopic cylinder 7, so that the measuring arm 4 can move along the support 3 and can contact outlet pipe walls of scroll shells with different thicknesses, so as to measure the thickness of the pipe walls.

As an alternative embodiment, as shown in fig. 1 and 2, the longitudinal section of the contact stopper 10 is triangular, so as to facilitate abutting against any position of the outlet pipe wall of the volute, and measure the thickness values of different positions, so as to accurately measure the data result.

As an optional implementation manner, as shown in fig. 1 and fig. 2, the bracket 3 is provided with a limiting block 11 protruding symmetrically, the limiting block 11 abuts against the pushing spring 5, and the pushing spring 5 is limited not to displace when deformed, so as to push the end of the measuring arm 4 to contact with the side wall of the volute all the time.

As an alternative embodiment, as shown in fig. 1, fig. 2, and fig. 4, a pressure sensor 12 is fixedly connected to the stopper 11, and is configured to receive a change in a distance that the pushing spring 5 deforms when the pushing spring 5 is displaced on the support 3 by the measuring arm 4, and further calculate a thickness value and a thickness change value of the volute outlet pipe wall according to hooke's law (F = kx).

As an optional implementation manner, as shown in fig. 4, a cushion layer 13 is disposed at one end of the pushing spring 5, and the cushion layer 13 is made of rubber, so that a stressed area is increased when the measuring arm 4 slides to the pushing spring 5, friction is reduced, and stability is increased.

The utility model discloses the theory of operation as follows: before use, a volute to be measured is placed on a rotating base 2 in a base 1, a group of oppositely arranged measuring arms 4 is adjusted, the tail ends of the two measuring arms 4 are at the same height with the measured volute through telescopic cylinders 7 on the measuring arms 4, then the sliding blocks 9 on the measuring arms 4 transversely move along sliding grooves 8 on a support 3 to enable abutting contacts 10 on the measuring arms 4 to abut against the inside and outside of the side wall of the volute, then the rotating base 2 is rotated, the whole measuring arms 4 generate different abutting pressures on the abutting springs 5 along the sliding grooves 8 on the support 3 according to the thicknesses of different volutes, the abutting springs 5 generate different degrees of deformation on limiting blocks 11 through contact of cushion layers 13, the abutting springs 5 on the support 3 keep the positions of the measuring arms 4 through self elastic force during rotation, the tail ends of the abutting springs always abut against the side wall of the volute, the change of the abutting springs 5 generated deformation distance when the measuring arms 4 generate displacement on the support 3 is observed, and the change of the wall thickness value and the outlet pipe wall thickness value of the volute can be calculated through the pressure sensor 12 receiving the pressure of the different degrees.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to suggest that the scope of the invention (including the claims) is limited to these examples; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

The present invention is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims (7)

1. A wall thickness detection device for an outlet pipe of a volute, which is characterized by comprising:

the device comprises a base (1), wherein a rotating base (2) is arranged on the base (1);

the support (3) is arranged above the base (1), and is fixedly connected with the base (1);

a group of oppositely arranged measuring arms (4) which are arranged on the bracket (3) in a sliding way;

the two ends of the abutting and pushing spring (5) are respectively abutted against the bracket (3) and the measuring arm (4);

after the volute is placed on the rotating base (2), the tail end of the measuring arm (4) abuts against the side wall of the volute so as to measure the thickness of the volute.

2. The device for detecting the thickness of the outlet pipe wall of the volute casing according to claim 1, wherein the rotating base (2) is symmetrically provided with a clamping plate (6), and the clamping plate (6) is slidably connected to the rotating base (2) and faces to the central position of the rotating base (2).

3. The outlet pipe wall thickness detection device of the volute according to claim 1, wherein the measuring arm (4) comprises a telescopic cylinder (7), a sliding groove (8) is formed in the support (3), a sliding block (9) capable of sliding along the sliding groove (8) is arranged at one end of the telescopic cylinder (7), and a contact stopper (10) is fixedly connected to the other end of the telescopic cylinder (7).

4. The outlet pipe wall thickness detection device of the volute according to claim 3, wherein the longitudinal section of the abutting head (10) is triangular.

5. The volute outlet pipe wall thickness detecting device according to claim 1, wherein the bracket (3) is provided with a stopper (11) which is symmetrically protruded, and the stopper (11) abuts against the abutting spring (5).

6. The outlet pipe wall thickness detection device of the volute according to claim 5, wherein a pressure sensor (12) is fixedly connected to the stopper (11).

7. The device for detecting the wall thickness of the outlet pipe of the volute according to claim 1, wherein a cushion layer (13) is disposed at one end of the pushing spring (5), and the cushion layer (13) is made of rubber.

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