CN114894075A - Pipe concentricity detection device - Google Patents
Pipe concentricity detection device Download PDFInfo
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- CN114894075A CN114894075A CN202210620023.7A CN202210620023A CN114894075A CN 114894075 A CN114894075 A CN 114894075A CN 202210620023 A CN202210620023 A CN 202210620023A CN 114894075 A CN114894075 A CN 114894075A
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- roller
- workpiece
- side plate
- pressing
- dial indicator
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
- G01B5/0004—Supports
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention provides a pipe concentricity detection device, which is used for detecting the concentricity of a workpiece and comprises: a base including a side plate; the roller assembly is arranged on the side plate and comprises a first roller, a second roller and a driving device, the axial direction of the second roller is parallel to the axial direction of the first roller, and the driving device is used for driving the first roller and/or the second roller to rotate; the pressing device is arranged on the side plate and used for pressing the workpiece and enabling the workpiece to be in contact with the first roller and the second roller; at least one measuring module is arranged at one end of the side plate and comprises a dial indicator, the dial indicator comprises a dial indicator contact pin, and the dial indicator contact pin is used for contacting a workpiece. The tube concentricity measuring device has the advantages of simple structure, strong universality, easiness in operation, low cost and easiness in maintenance, and can quickly and accurately measure the tube concentricity.
Description
Technical Field
The invention belongs to the field of concentricity detection, and particularly relates to a pipe concentricity detection device.
Background
The concentricity detection device is mainly used for the concentricity work (also called pair wheel alignment) of two shafts of various rotating equipment such as a compressor, a centrifugal pump, a fan, a generator and the like, has the characteristics of reasonable structure, high precision, wide application range, convenient use and maintenance and the like, is an ideal special measuring tool, and is widely used in the mechanical industries such as petrifaction, power generation, textile, papermaking and the like. At present, the concentricity is usually detected by a three-coordinate measuring machine, a laser measuring machine or an image measuring machine, and the equipment is precise, accurate in measurement and high in cost. When measuring common workpieces such as extruded tubes and the like, if the concentricity is detected by adopting the detection machine, the cost is undoubtedly greatly increased, however, the concentricity is detected by adopting a common method, the roundness and the straightness can only be measured for many times, the average value is repeatedly summed and calculated to approximate calculation, and the obtained data is inaccurate and has large error.
Disclosure of Invention
Aiming at the defects in the prior art, the embodiment of the invention provides a pipe concentricity detection device, which can accurately measure the concentricity of a round pipe product and save time and economic cost. In order to achieve the technical purpose, the embodiment of the invention adopts the technical scheme that:
the embodiment of the invention provides a pipe concentricity detection device, which is used for detecting the concentricity of a workpiece and comprises the following components:
a base including a side plate;
the roller assembly is arranged on the side plate and comprises a first roller, a second roller and a driving device, the axial direction of the second roller is parallel to the axial direction of the first roller, and the driving device is used for driving the first roller and/or the second roller to rotate;
the pressing device is arranged on the side plate and used for pressing the workpiece and enabling the workpiece to be in contact with the first roller and the second roller;
at least one measuring module is arranged at one end of the side plate and comprises a dial indicator, the dial indicator comprises a dial indicator contact pin, and the dial indicator contact pin is used for contacting a workpiece.
Further, the roller assembly further comprises:
the first roller further comprises a first convex part, the outer diameter of the first convex part is larger than that of the first shell, and the first shell is used for sleeving the part below the first convex part of the first roller;
the second shell is fixedly connected with the side plate, the second roller further comprises a second convex part, the outer diameter of the second convex part is larger than that of the second shell, and the second shell is used for sleeving the part below the second convex part of the second roller;
the pressing device is used for pressing the workpiece and enabling the workpiece to be in contact with the first convex part and the second convex part.
Further, the pressing device includes:
the axial direction of the pressing wheel is parallel to the axial direction of the first roller wheel, and the pressing wheel is used for pressing a workpiece and enabling the workpiece to be in contact with the roller wheel assembly;
and the adjusting handle is connected with the pressing wheel and used for adjusting the interval between the pressing wheel and the roller assembly.
Further, the device also comprises a rotating roller, wherein the axial direction of the rotating roller is parallel to the axial direction of the first roller; the rotary roller is positioned on one side of the first roller and the second roller, which is far away from the side plate, and is positioned right below the workpiece placing space;
the upper end of the rotary roller is provided with a groove for arranging a workpiece.
Furthermore, the base also comprises a supporting plate, the supporting plate is vertical to the side plate, and the lower end of the rotating roller is fixedly connected with the supporting plate;
furthermore, the supporting plate comprises a through hole, the driving device is a driving motor, the driving motor is arranged on the other side of the supporting plate, which is far away from the first roller, the driving motor comprises an output shaft, and the output shaft penetrates through the through hole and is fixedly connected with the first roller;
furthermore, the measuring module further comprises a multi-degree-of-freedom support arm, one end of the multi-degree-of-freedom support arm is connected with the side plate, and the other end of the multi-degree-of-freedom support arm is connected with the dial indicator.
Furthermore, the measuring module further comprises a fastening bolt, and the dial indicator is inserted into the other end of the multi-degree-of-freedom support arm and is fixed through the fastening bolt.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the tube concentricity measuring device has the advantages of simple structure, strong universality, easiness in operation, low cost and easiness in maintenance, and can quickly and accurately measure the tube concentricity.
Drawings
Fig. 1 is a schematic structural diagram of a pipe concentricity detection apparatus in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a pipe concentricity detection device, which is used for detecting the concentricity of a workpiece and comprises: a base 1 including a side plate 11; the roller assembly 2 is arranged on the side plate 11, the roller assembly 2 comprises a first roller 21, a second roller 22 and a driving device 23, the axial direction of the second roller 22 is parallel to the axial direction of the first roller 21, and the driving device 23 is used for driving the first roller 21 and/or the second roller 22 to rotate; the pressing device 3 is arranged on the side plate 11, and the pressing device 3 is used for pressing a workpiece and enabling the workpiece to be in contact with the first roller 21 and the second roller 22; at least one measuring module 4, which is arranged at one end of the side plate 11, wherein the measuring module 4 comprises a dial indicator 41, the dial indicator 41 comprises a dial indicator contact pin 410, and the dial indicator contact pin 410 is used for contacting a workpiece;
in a specific embodiment, as shown in fig. 1, the side plate 11 is vertically disposed, the measuring module 4 is disposed at an upper end of the side plate 11, and the roller assembly 2 is fixedly connected to the side plate 11, wherein an axial direction of the first roller 21 is parallel to an axial direction of the second roller 22, and both the axial directions are disposed along a vertical direction, so as to connect the driving device 23 to the first roller 21 and drive the first roller 21 to rotate.
During measurement, a workpiece is placed on one side, away from the side plate 11, of the roller assembly 2, so that the workpiece is in contact with the first roller 21 and the second roller 22, the pressing device 3 is adjusted, the workpiece is ensured to be tightly attached to the first roller 21 and the second roller 22, and the position of the workpiece is kept fixed; and adjusting the position of the dial indicator 41 in the measuring module 4, so that a contact pin of the dial indicator 41 is in contact with the surface to be measured of the workpiece, and keeping the position of the dial indicator 41 fixed. During testing, the driving device 23 drives the first roller 21 to rotate, drives the workpiece to rotate and further drives the second roller 22 to rotate, at the moment, the dial indicator 41 can read the circle run-out value of the workpiece, the concentricity of the tested workpiece can be obtained by calculating the difference between the maximum value and the minimum value of the circle run-out value, the structure is stable, the testing process is convenient and fast, and the testing result is accurate and visual.
It should be noted that, when the pipe concentricity detection apparatus is provided with two measurement modules 4, at least one measurement module 4, one of the measurement modules 4 may be used to contact the inner surface of the workpiece and test the concentricity of the inner surface of the workpiece, and the other measurement module 4 may be used to contact the outer surface of the workpiece and test the concentricity of the outer surface of the workpiece, so that when the workpiece rotates, the concentricity of the inner circle and the outer circle of the workpiece may be detected simultaneously, and the detection is convenient and efficient.
Further, the roller assembly 2 further includes: the first housing 211 is fixedly connected to the side plate 11, the first roller 21 further includes a first protrusion 212, an outer diameter of the first protrusion 212 is larger than an outer diameter of the first housing 211, and the first housing 211 is configured to fit a portion of the first roller 21 below the first protrusion 212; the second housing 221, the second housing 221 is fixedly connected to the side plate 11, the second roller 22 further includes a second protrusion 222, an outer diameter of the second protrusion 222 is larger than an outer diameter of the second housing 221, the second housing 221 is configured to fit a portion below the second protrusion 222 of the second roller 22, and the pressing device 3 is configured to press the workpiece and make the workpiece contact with the first protrusion 212 and the second protrusion 222.
In a specific embodiment, as shown in fig. 1, the first housing 211 and the second housing 221 are both fixedly disposed on the side plate 11, and since the upper end of the first roller 21 is the first protrusion 212 and the outer diameter of the first protrusion 212 is larger than the outer diameter of the first housing 211, the rest of the first roller 21 except the first protrusion 212 can be sleeved in the first housing 211, and the position of the first roller 21 is kept fixed; similarly, the second protrusion 222 is disposed at the upper end of the second roller 22, and the outer diameter of the second protrusion 222 is larger than the outer diameter of the second casing 221, so that the rest of the second roller 22 except the second protrusion 222 can be sleeved in the second casing 221, and the position of the second roller 22 is kept fixed. The structure is reasonable and reliable in design, and on one hand, the first roller 21 and the second roller 22 are not easy to fall off, so that the stability of the test process is ensured; on the other hand, the first roller 21 and the second roller 22 can be replaced immediately after being worn, and the maintenance cost is low.
Further, the pressing device 3 includes: a pressing wheel 31, an axial direction of the pressing wheel 31 being parallel to an axial direction of the first roller 21, the pressing wheel 31 being used for pressing the workpiece and making the workpiece contact with the roller assembly 2; and the adjusting handle 32 is connected with the pressing wheel 31, and the adjusting handle 32 is used for adjusting the interval between the pressing wheel 31 and the roller assembly 2.
In a specific embodiment, as shown in fig. 1, the axial direction of the pressing wheel 31 is parallel to the axial direction of the first roller 21, and during a test, the pressing wheel 31 not only can press the workpiece, but also can rotate along with the workpiece, so that the friction between the pressing device 3 and the workpiece is reduced, and the workpiece can rotate conveniently.
The interval between the pressing wheel 31 and the roller assembly 2 is adjusted through the adjusting handle 32, so that the contact between the workpiece and the first roller 21 and the second roller 22 can be ensured, and the stability of the testing process can be improved.
Further, the device also comprises a rotating roller 5, wherein the axial direction of the rotating roller 5 is parallel to the axial direction of the first roller 21; the rotary roller 5 is positioned on the side of the first roller 21 and the second roller 22 away from the side plate 11 and is positioned right below the workpiece placing space; the upper end of the rotating roller 5 is provided with a groove 51 for arranging a workpiece;
in a specific embodiment, as shown in fig. 1, the rotating roller 5 is disposed along a vertical direction, during measurement, a workpiece is disposed above the rotating roller 5, the lower portion of the rotating roller 5 is fixedly connected to the base 1, and the rotating roller 5 can prevent the workpiece from shifting downward during rotation. The rotary roller 5 ensures that the workpiece is fixed in position when rotating, and further ensures the accuracy of the pipe concentricity detection by the pipe concentricity detection equipment.
Further, the base 1 further comprises a supporting plate 12, the supporting plate 12 is perpendicular to the side plate 11, and the lower end of the rotating roller 5 is fixedly connected with the supporting plate 12.
In a specific embodiment, as shown in fig. 1, the supporting plate 12 is perpendicular to the side plate 11, the lower end of the rotating roller 5 is fixedly connected to the supporting plate 12, a groove 51 is formed in the upper end of the rotating roller 5, the workpiece can be fixedly disposed in the groove 51, and the rotating roller 5 can not only prevent the workpiece from deflecting during the rotation process, but also rotate along with the rotation of the workpiece, which is beneficial to reducing the friction force during the rotation of the workpiece and improving the detection efficiency.
Further, the supporting plate 12 includes a through hole 120, the driving device 23 is a driving motor, the driving motor is disposed on the other side of the supporting plate 12 away from the first roller 21, the driving motor includes an output shaft, and the output shaft 231 penetrates through the through hole 120 and is fixedly connected with the first roller 21;
in a specific embodiment, as shown in fig. 1, the first roller 21 is disposed above the supporting plate 12, the driving motor is disposed below the supporting plate 12, and the output shaft 231 penetrates through the through hole 120 and is fixedly connected to the first roller 21, so that the driving motor can drive the first roller 21 to rotate.
Further, the measurement module 4 further includes a multi-degree-of-freedom support arm 42, one end of the multi-degree-of-freedom support arm 42 is connected to the side plate 11, and the other end of the multi-degree-of-freedom support arm 42 is connected to the dial indicator 41.
Further, the measuring module 4 further includes a fastening bolt 43, and the dial indicator 41 is inserted into the other end of the multiple degree of freedom support arm 42 and fixed by the fastening bolt 43.
In a specific embodiment, as shown in fig. 1, the multi-degree-of-freedom support arm 42 has a horizontal swing degree of freedom, a vertical swing degree of freedom, and a rotational degree of freedom about an arm center axis, a lower end of the multi-degree-of-freedom support arm 42 is connected to an upper end of the side plate 11, an upper end of the multi-degree-of-freedom support arm 42 is connected to the dial indicator 41, before measurement, the fastening bolt 43 is adjusted to fix the dial indicator 41 on the multi-degree-of-freedom support arm 42, and then the multi-degree-of-freedom support arm 42 is adjusted to contact a contact pin of the dial indicator 41 with a workpiece surface.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (8)
1. A pipe concentricity detection device for detecting the concentricity of a workpiece is characterized by comprising:
a base (1) comprising a side plate (11);
the roller assembly (2) is arranged on the side plate (11), the roller assembly (2) comprises a first roller (21), a second roller (22) and a driving device (23), the axial direction of the second roller (22) is parallel to the axial direction of the first roller (21), and the driving device (23) is used for driving the first roller (21) and/or the second roller (22) to rotate;
the pressing device (3) is arranged on the side plate (11), and the pressing device (3) is used for pressing a workpiece and enabling the workpiece to be in contact with the first roller (21) and the second roller (22);
the measuring module (4) is arranged at one end of the side plate (11), the measuring module (4) comprises a dial indicator (41), the dial indicator (41) comprises a dial indicator contact pin (410), and the dial indicator contact pin (410) is used for contacting a workpiece.
2. The tube concentricity detection apparatus of claim 1,
the roller assembly (2) further comprises:
the first shell (211), the first shell (211) is fixedly connected with the side plate (11), the first roller (21) further comprises a first convex part (212), the outer diameter of the first convex part (212) is larger than that of the first shell (211), and the first shell (211) is used for sleeving the part below the first convex part (212) of the first roller (21);
the second shell (221), the second shell (221) is fixedly connected with the side plate (11), the second roller (22) further comprises a second convex portion (222), the outer diameter of the second convex portion (222) is larger than that of the second shell (221), and the second shell (221) is used for sleeving the part below the second convex portion (222) of the second roller (22);
the pressing device (3) is used for pressing the workpiece and enabling the workpiece to be in contact with the first convex part (212) and the second convex part (222).
3. The tube concentricity detection apparatus of claim 1,
the pressing device (3) comprises:
the axial direction of the pressing wheel (31) is parallel to the axial direction of the first roller (21), and the pressing wheel (31) is used for pressing a workpiece and enabling the workpiece to be in contact with the roller assembly (2);
and the adjusting handle (32) is connected with the pressing wheel (31), and the adjusting handle (32) is used for adjusting the interval between the pressing wheel (31) and the roller assembly (2).
4. The tube concentricity detection apparatus of claim 2,
the device also comprises a rotating roller (5), wherein the axial direction of the rotating roller (5) is parallel to the axial direction of the first roller (21); the rotating roller (5) is positioned on one side of the first roller (21) and the second roller (22) departing from the side plate (11) and is positioned right below the workpiece placing space;
the upper end of the rotary roller (5) is provided with a groove (51) for arranging a workpiece.
5. The tube concentricity detection apparatus of claim 4,
the base (1) further comprises a supporting plate (12), the supporting plate (12) is perpendicular to the side plates (11), and the lower end of the rotating roller (5) is fixedly connected with the supporting plate (12).
6. The tube concentricity detection apparatus of claim 5,
the supporting plate (12) comprises a through hole (120), the driving device (23) is a driving motor, the driving motor is arranged on the other side, deviating from the first roller (21), of the supporting plate (12), the driving motor comprises an output shaft, and the output shaft (231) penetrates through the through hole (120) and is fixedly connected with the first roller (21).
7. The tube concentricity detection apparatus of claim 1,
the measuring module (4) further comprises a multi-degree-of-freedom support arm (42), one end of the multi-degree-of-freedom support arm (42) is connected with the side plate (11), and the other end of the multi-degree-of-freedom support arm (42) is connected with the dial indicator (41).
8. The tube concentricity detection apparatus of claim 7,
the measuring module (4) further comprises a fastening bolt (43), and the dial indicator (41) is inserted into the other end of the multi-degree-of-freedom support arm (42) and fixed through the fastening bolt (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210620023.7A CN114894075A (en) | 2022-06-01 | 2022-06-01 | Pipe concentricity detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210620023.7A CN114894075A (en) | 2022-06-01 | 2022-06-01 | Pipe concentricity detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114894075A true CN114894075A (en) | 2022-08-12 |
Family
ID=82725806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210620023.7A Pending CN114894075A (en) | 2022-06-01 | 2022-06-01 | Pipe concentricity detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114894075A (en) |
-
2022
- 2022-06-01 CN CN202210620023.7A patent/CN114894075A/en active Pending
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