CN215447856U - Roundness cylindricity detection device for inner wall and outer wall of revolving body workpiece - Google Patents
Roundness cylindricity detection device for inner wall and outer wall of revolving body workpiece Download PDFInfo
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- CN215447856U CN215447856U CN202121622918.1U CN202121622918U CN215447856U CN 215447856 U CN215447856 U CN 215447856U CN 202121622918 U CN202121622918 U CN 202121622918U CN 215447856 U CN215447856 U CN 215447856U
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Abstract
The utility model belongs to the technical field of measurement devices for inner walls and outer walls of revolving body type workpieces, and particularly relates to a roundness cylindricity detection device for the inner walls and the outer walls of the revolving body type workpieces, which comprises a linear lifting mechanism, wherein the linear lifting mechanism is hoisted on a frame body; the supporting seat is respectively connected with the linear lifting mechanism and the non-contact distance measuring sensor, and the linear lifting mechanism drives the non-contact distance measuring sensor connected with the supporting seat to perform lifting action; the upper end of the rotatable base is fixedly connected with the revolving body type workpiece to be detected, the rotatable base drives the revolving body type workpiece to be detected to rotate, the revolving body type workpiece to be detected is located below the non-contact distance measuring sensor, and the non-contact distance measuring sensor is used for measuring roundness and cylindricity of the inner wall or the outer wall of the revolving body type workpiece to be detected. The revolving body type workpiece to be measured rotates with high precision, the non-contact distance measuring sensor measures distance, the roundness and the cylindricity of the inner wall and the outer wall of the workpiece are measured quickly, and the measuring result is accurate and reliable.
Description
Technical Field
The utility model belongs to the technical field of measurement devices for inner walls and outer walls of rotary workpieces, and particularly relates to a roundness and cylindricity detection device for the inner walls and the outer walls of the rotary workpieces.
Background
In the batch production of the existing revolving body workpieces, such as cylinder sleeves, joint hoops and the like, the quality control generally adopts regular sampling detection or traditional off-line detection, the sampling detection mode adopts three-coordinate equipment for measurement, and the cleaning treatment is needed before sampling and feeding precision measurement workpieces in consideration of the existence of vibration, oil stains and dust in the cylinder sleeve processing process, so that the efficiency is low.
The off-line detection methods include the following two methods: 1. three to four points are uniformly distributed on the circumference of the contact sensor, so that the number of sampling points is small, the anti-interference capability is weak, and the measurement result is inaccurate; 2. the contact type sensor is tightly attached to the inner wall of the circular hole to do 360-degree rotary motion, the contact type sensor is easy to scratch a workpiece, in addition, due to the fact that the self mechanism characteristics of the contact type sensor are not strong in adaptability to the step of the measured surface, the sampling speed of the curved surface is limited, particularly, the avoidance of the step of the inner circular surface is not flexible enough, and the processing quality of the whole inner circular surface is difficult to fully evaluate.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model aims to provide the roundness and cylindricity detection device for the inner wall and the outer wall of the rotary workpiece.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a roundness and cylindricity detection device for the inner wall and the outer wall of a revolving body workpiece, which comprises:
the linear lifting mechanism is hung on the frame body;
the supporting seat is respectively connected with the linear lifting mechanism and the non-contact distance measuring sensor, and the linear lifting mechanism drives the non-contact distance measuring sensor connected with the supporting seat to perform lifting action;
the upper end of the rotatable base is fixedly connected with the revolving body type workpiece to be detected, the rotatable base drives the revolving body type workpiece to be detected to rotate, the revolving body type workpiece to be detected is located below the non-contact distance measuring sensor, and the non-contact distance measuring sensor is used for measuring roundness and cylindricity of the inner wall or the outer wall of the revolving body type workpiece to be detected.
Further, linear elevating system adopts ball screw slip table, ball screw slip table includes linear electric motor, ball screw, air supporting guide rail and slider, linear electric motor's output shaft passes through the coupling joint with ball screw, the air supporting guide rail is installed ball screw's both sides on linear electric motor's the output terminal surface, the slider wears to overlap on ball screw and air supporting guide rail, and passes through threaded connection with ball screw.
Further, the supporting seat comprises an L-shaped connecting plate and a horizontal plate, the upper portion of the L-shaped connecting plate is fixedly connected with the sliding block through a bolt, and the lower portion of the L-shaped connecting plate is fixedly connected with the horizontal plate through a bolt.
Furthermore, the non-contact distance measuring sensor is fixedly connected with the horizontal plate through a horizontal displacement adjusting mechanism.
Furthermore, the horizontal displacement adjusting mechanism comprises a T-shaped part, a sliding rail matched with the upper end of the T-shaped part is arranged at the bottom of the horizontal plate, and the T-shaped part is fixedly connected with the sliding rail through a screw; the non-contact distance measuring sensor is fixedly arranged at the lower end of the T-shaped part.
Furthermore, the non-contact type distance measuring sensor also comprises at least one outer contour sensor, wherein the transmitting end and the receiving end of the outer contour sensor are relatively fixed on the vertical plates on two sides of the non-contact type distance measuring sensor, and the vertical plates are fixedly connected with the horizontal plate.
Further, the rotatable base comprises an air bearing, a hollow frameless motor and an encoder, the hollow frameless motor is connected with the air bearing, the encoder is installed on the air bearing, the revolving body type workpiece to be detected is fixedly connected with the air bearing through a limiting mechanism, and the limiting mechanism adopts an automatic three-jaw chuck; and an oil scraping and dust removing device is arranged on the table top of the air bearing.
Compared with the prior art, the utility model has the following advantages:
according to the roundness cylindricity detection device for the inner wall and the outer wall of the revolving body type workpiece, the non-contact type distance measurement sensor is driven by the linear lifting mechanism to rise to different heights, the revolving base drives the revolving body type workpiece to rotate, and the non-contact type distance measurement sensor measures distance in the rotating process. Or the non-contact distance measuring sensor is driven by the linear lifting mechanism to vertically move from the lowest point to the highest point, the non-contact distance measuring sensor performs distance measurement in the lifting process, rotates for a certain angle, vertically moves from the highest point to the lowest point to perform distance measurement, the distance is a distance value between a probe of the non-contact distance measuring sensor and the inner wall (outer wall) of the workpiece, and finally the measured value is compared with the standard value so as to detect the roundness cylindricity of the workpiece.
The non-contact distance measuring sensor can acquire more distance data and provide data support for result evaluation; in addition, compared with a contact sensor, the non-contact distance measuring sensor is not contacted with a workpiece, and the sampling speed is not limited by the surface steps of the workpiece. The roundness and cylindricity detection device for the inner wall and the outer wall of the revolving body workpiece has the advantages of simple structure, ingenious design, low manufacturing cost, high detection efficiency, accurate and reliable detection result and the like, and is widely applied to measurement of roundness and cylindricity of the inner wall and the outer wall of a cylinder sleeve, measurement of roundness and cylindricity of internal threads of a joint hoop workpiece, measurement of roundness and cylindricity of an inner hole of a connecting rod and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic perspective view of a roundness cylindricity detecting apparatus for an inner wall and an outer wall of a revolving body type workpiece according to an embodiment of the present invention;
fig. 2 is a front structural schematic view of a roundness cylindricity detecting device for an inner wall and an outer wall of a revolving body type workpiece according to an embodiment of the present invention;
fig. 3 is a schematic view of the connection of the slide rail and the T-piece according to the embodiment of the present invention.
The reference numbers in the figures denote:
1. the device comprises a revolving body type workpiece to be detected, 2 linear motors, 3 ball screws, 4 air-floating guide rails, 5L-shaped connecting plates, 6 horizontal plates, 7 non-contact distance measuring sensors, 8T-shaped parts, 9 outer contour sensors, 10 vertical plates, 11 rotatable bases and 12 sliding rails.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments.
As shown in fig. 1 and fig. 2, the roundness cylindricity detecting device for the inner wall and the outer wall of the revolving body type workpiece in the embodiment comprises a linear lifting mechanism, a supporting seat and a rotatable base 11; the linear lifting mechanism is hoisted on the frame body through bolts; the supporting seat is used for connecting the linear lifting mechanism and the non-contact distance measuring sensor 7, and the linear lifting mechanism drives the non-contact distance measuring sensor 7 connected with the supporting seat to perform lifting action; the upper end of the rotatable base 11 is fixedly connected with the revolving body type workpiece to be detected 1, the rotatable base 11 drives the revolving body type workpiece to be detected 1 to rotate, the revolving body type workpiece to be detected 1 is located below the non-contact distance measuring sensor 7, and the non-contact distance measuring sensor 7 measures the roundness cylindricity of the inner wall or the outer wall of the revolving body type workpiece to be detected 1.
The linear lifting mechanism can adjust the height of the non-contact distance measuring sensor 7, preferably, a ball screw sliding table is adopted, the ball screw sliding table comprises a linear motor 2, a ball screw 3, an air-floating guide rail 4 and a sliding block, an output shaft of the linear motor 2 is connected with the ball screw 3 through a coupler, the air-floating guide rail 4 is installed on two sides of the ball screw 3 on the output end surface of the linear motor 2 through bolts, and the sliding block is sleeved on the ball screw 3 and the air-floating guide rail 4 in a penetrating manner and is connected with the ball screw 3 through threads; when the linear motor 2 is started, the rotary motion of the ball screw 3 is converted into the linear motion of the slide block, so that the slide block can realize the up-and-down smooth movement without friction and vibration along the air-floating guide rail 4.
The supporting seat comprises an L-shaped connecting plate 5 and a horizontal plate 6, the upper portion of the L-shaped connecting plate 5 is fixedly connected with the sliding block through a bolt, and the lower portion of the L-shaped connecting plate 5 is fixedly connected with the horizontal plate 6 through a bolt.
Aiming at the detected workpieces 1 of the revolving bodies with different specifications, when the inner wall and the outer wall of the workpiece need to be detected, the non-contact distance measuring sensor 7 needs to be horizontally adjusted to a proper position to detect the workpiece, so that a horizontal displacement adjusting mechanism is designed, the horizontal displacement adjusting mechanism comprises a T-shaped part 8, a sliding rail 12 matched with the upper end of the T-shaped part 8 is arranged at the bottom of a horizontal plate 6, the T-shaped part 8 can horizontally move in the sliding rail 12, and after the workpiece is moved to a proper position, a screw penetrates through a limiting hole of the sliding rail 12 to tightly prop the T-shaped part 8 for fixing. Further, the non-contact distance measuring sensor 7 is fixedly installed at the lower end of the T-shaped member 8 through bolts.
The detection device of the embodiment further comprises at least one outer contour sensor 9 for detecting the outer contour characteristics of the workpiece, in order to improve the detection efficiency, two outer contour sensors 9 are adopted, the transmitting end and the receiving end of each outer contour sensor 9 are relatively fixed on vertical plates 10 on two sides of the non-contact distance measuring sensor 7, and the vertical plates 10 are fixedly connected with the horizontal plate 6 through bolts. The distance between the transmitting end and the receiving end of the outer contour sensor 9 is adjusted according to the outer diameter of the workpiece 1 to be detected such as a revolving body, so that the outer contour feature of the workpiece is displayed at the optimal measuring position, and the dimension of the outer edge contour feature of the workpiece can be detected by matching with the rotatable base 11.
The rotatable base 11 comprises an air bearing, a hollow frameless motor and an encoder, the hollow frameless motor is connected with the air bearing, the encoder is installed on the air bearing, the revolving body type workpiece 1 to be detected is fixedly connected with the air bearing through a limiting mechanism, and preferably, the limiting mechanism adopts an automatic three-jaw chuck; the hollow frameless motor can realize high-precision rotation with the diameter jump and the end jump smaller than 0.5 mu m, the hollow frameless motor drives the air bearing, a workpiece connected with the air bearing and the encoder to synchronously rotate, and the rotation angle of the workpiece can be detected in real time by matching with the encoder.
Preferably, the oil scraping and dust removing device is arranged on the table top of the air bearing, so that sundries such as oil films, dust and fibers on the workpiece are scraped or blown off, the accuracy of the non-contact distance measuring sensor 7 in sampling the characteristics of the workpiece is ensured, and the interference of other factors on the measuring result is avoided.
The detection method of the roundness cylindricity detection device for the inner wall and the outer wall of the revolving body workpiece in the embodiment comprises the following steps of:
fixing the revolving body type workpiece 1 to be detected on the rotatable base 11 through a limiting mechanism;
the non-contact distance measuring sensor 7 is driven by the linear lifting mechanism to rise to a height h1, the rotatable base 11 drives the revolving body type workpiece 1 to rotate 360 degrees, and the non-contact distance measuring sensor 7 measures the distance in the rotating process of the workpiece; wherein, the non-contact distance measuring sensor 7 can perform continuous scanning or intermittent scanning;
the non-contact distance measuring sensor 7 is driven by the linear lifting mechanism to rise to a height h2, the rotatable base 11 drives the revolving body type workpiece 1 to rotate 360 degrees, and the non-contact distance measuring sensor 7 measures the distance in the rotating process of the workpiece; each measured value is bound with the vertical direction and the rotation angle of the measuring point, and the linear lifting mechanism drives the non-contact distance measuring sensor 7 to complete the distance measurement of different heights of the outer wall of the inner wall of the workpiece; the number of the layers selected above is more than two, and the number of the layers and the layer spacing are determined according to the height of the workpiece to be detected;
under the combined action of the linear lifting mechanism and the rotatable base 11, the non-contact distance measuring sensor 7 completes the distance measurement between the probe of the non-contact distance measuring sensor 7 and the inner wall or the outer wall of the workpiece 1 to be measured such as a revolving body, and the measured value is compared with the standard value so as to detect the roundness cylindricity of the workpiece.
Another method for detecting a roundness and cylindricity detecting device of an inner wall and an outer wall of a revolving body workpiece in this embodiment includes the following steps:
fixing the revolving body type workpiece 1 to be detected on the rotatable base 11 through a limiting mechanism;
the non-contact distance measuring sensor 7 is driven by the linear lifting mechanism to vertically move from the lowest point to the highest point, and the non-contact distance measuring sensor 7 measures the distance in the lifting process; wherein, the non-contact distance measuring sensor 7 can perform continuous scanning or intermittent scanning;
the rotating base drives the revolving body type workpiece 1 to rotate 90 degrees, the non-contact distance measuring sensor 7 is driven by the linear lifting mechanism to vertically move from the highest point to the lowest point, and the non-contact distance measuring sensor 7 performs distance measurement in the descending process;
the rotatable base 11 rotates to 180 degrees and 270 degrees respectively, the non-contact distance measuring sensor 7 completes distance measurement of different angles under the drive of the linear lifting mechanism, all measured values are bound with the vertical direction and the rotation angle of the measuring points, and the angles of 0 degree, 90 degrees, 180 degrees and 270 degrees are adjusted and subdivided according to the inner diameter and the outer diameter of the measured workpiece.
Under the combined action of the linear lifting mechanism and the rotatable base 11, the non-contact distance measuring sensor 7 completes the distance measurement between the probe of the non-contact distance measuring sensor 7 and the inner wall or the outer wall of the workpiece 1 to be measured such as a revolving body, and the measured value is compared with the standard value so as to detect the roundness cylindricity of the workpiece.
Specifically, the distance between the transmitting end and the receiving end of the outer contour sensor 9 is adjusted according to the outer diameter of the workpiece 1 to be detected, so that the outer contour sensor 9 detects the size of the outer edge contour feature of the workpiece.
When the inner wall and the outer wall of the detected workpiece 1 of the revolving body type are detected aiming at the detected workpieces 1 of the revolving bodies of different specifications, the position of the T-shaped part 8 in the slide rail 12 is adjusted, and after the workpiece 1 of the revolving body type is moved to a proper position, a screw penetrates through a limiting hole of the slide rail 12 to tightly prop against the T-shaped part 8 for fixing as shown in figure 3.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not necessarily denote a limitation of quantity. 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 merely 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.
Finally, it is to be noted that: the above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a circularity cylindricity detection device of solid of revolution class work piece inner wall outer wall which characterized in that includes:
the linear lifting mechanism is hung on the frame body;
the supporting seat is respectively connected with the linear lifting mechanism and the non-contact distance measuring sensor, and the linear lifting mechanism drives the non-contact distance measuring sensor connected with the supporting seat to perform lifting action;
the upper end of the rotatable base is fixedly connected with the revolving body type workpiece to be detected, the rotatable base drives the revolving body type workpiece to be detected to rotate, the revolving body type workpiece to be detected is located below the non-contact distance measuring sensor, and the non-contact distance measuring sensor is used for measuring roundness and cylindricity of the inner wall or the outer wall of the revolving body type workpiece to be detected.
2. The roundness cylindricity detection device of solid of revolution class work piece inner wall outer wall of claim 1, characterized in that, linear elevating system adopts ball screw slip table, ball screw slip table includes linear electric motor, ball screw, air supporting guide rail and slider, linear electric motor's output shaft passes through the coupling joint with ball screw, the air supporting guide rail is installed ball screw's both sides on linear electric motor's the output terminal surface, the slider wears to overlap on ball screw and air supporting guide rail, and passes through threaded connection with ball screw.
3. The roundness and cylindricity detecting device for the inner wall and the outer wall of a revolving body type workpiece according to claim 2, wherein the support seat comprises an L-shaped connecting plate and a horizontal plate, the upper part of the L-shaped connecting plate is fixedly connected with the slide block through a bolt, and the lower part of the L-shaped connecting plate is fixedly connected with the horizontal plate through a bolt.
4. The device for detecting the roundness cylindricity of the inner wall and the outer wall of the revolving body type workpiece according to claim 3, wherein the non-contact distance measuring sensor is fixedly connected with the horizontal plate through a horizontal displacement adjusting mechanism.
5. The roundness and cylindricity detecting device for the inner wall and the outer wall of the revolving body type workpiece according to claim 4, wherein the horizontal displacement adjusting mechanism comprises a T-shaped piece, a slide rail matched with the upper end of the T-shaped piece is arranged at the bottom of the horizontal plate, and the T-shaped piece is fixedly connected with the slide rail through a screw; the non-contact distance measuring sensor is fixedly arranged at the lower end of the T-shaped part.
6. The device for detecting the roundness cylindricity of the inner wall and the outer wall of the revolving body type workpiece according to claim 5, further comprising at least one outer contour sensor, wherein a transmitting end and a receiving end of the outer contour sensor are relatively fixed on vertical plates on two sides of the non-contact type distance measuring sensor, and the vertical plates are fixedly connected with a horizontal plate.
7. The roundness cylindricity detecting device for the inner wall and the outer wall of a revolving body workpiece according to claim 1, characterized in that the rotatable base comprises an air bearing, a hollow frameless motor and an encoder, the hollow frameless motor is connected with the air bearing, the encoder is mounted on the air bearing, the revolving body workpiece is fixedly connected with the air bearing through a limiting mechanism, and the limiting mechanism adopts an automatic three-jaw chuck; and an oil scraping and dust removing device is arranged on the table top of the air bearing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121622918.1U CN215447856U (en) | 2021-07-16 | 2021-07-16 | Roundness cylindricity detection device for inner wall and outer wall of revolving body workpiece |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121622918.1U CN215447856U (en) | 2021-07-16 | 2021-07-16 | Roundness cylindricity detection device for inner wall and outer wall of revolving body workpiece |
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| CN215447856U true CN215447856U (en) | 2022-01-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117066139A (en) * | 2023-10-18 | 2023-11-17 | 四川辰宇微视科技有限公司 | Device and method for efficiently detecting concentricity of microchannel plate |
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2021
- 2021-07-16 CN CN202121622918.1U patent/CN215447856U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117066139A (en) * | 2023-10-18 | 2023-11-17 | 四川辰宇微视科技有限公司 | Device and method for efficiently detecting concentricity of microchannel plate |
| CN117066139B (en) * | 2023-10-18 | 2023-12-26 | 四川辰宇微视科技有限公司 | Device and method for efficiently detecting concentricity of microchannel plate |
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